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iwlwifi: unify external & internal modparam names
[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / drivers / net / wireless / intel / iwlwifi / mvm / ops.c
1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
28 *
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67 #include <linux/module.h>
68 #include <linux/vmalloc.h>
69 #include <net/mac80211.h>
70
71 #include "iwl-notif-wait.h"
72 #include "iwl-trans.h"
73 #include "iwl-op-mode.h"
74 #include "iwl-fw.h"
75 #include "iwl-debug.h"
76 #include "iwl-drv.h"
77 #include "iwl-modparams.h"
78 #include "mvm.h"
79 #include "iwl-phy-db.h"
80 #include "iwl-eeprom-parse.h"
81 #include "iwl-csr.h"
82 #include "iwl-io.h"
83 #include "iwl-prph.h"
84 #include "rs.h"
85 #include "fw-api-scan.h"
86 #include "time-event.h"
87 #include "fw-dbg.h"
88 #include "fw-api.h"
89 #include "fw-api-scan.h"
90
91 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
92 MODULE_DESCRIPTION(DRV_DESCRIPTION);
93 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
94 MODULE_LICENSE("GPL");
95
96 static const struct iwl_op_mode_ops iwl_mvm_ops;
97 static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
98
99 struct iwl_mvm_mod_params iwlmvm_mod_params = {
100 .power_scheme = IWL_POWER_SCHEME_BPS,
101 .tfd_q_hang_detect = true
102 /* rest of fields are 0 by default */
103 };
104
105 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
106 MODULE_PARM_DESC(init_dbg,
107 "set to true to debug an ASSERT in INIT fw (default: false");
108 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
109 MODULE_PARM_DESC(power_scheme,
110 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
111 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
112 bool, S_IRUGO);
113 MODULE_PARM_DESC(tfd_q_hang_detect,
114 "TFD queues hang detection (default: true");
115
116 /*
117 * module init and exit functions
118 */
119 static int __init iwl_mvm_init(void)
120 {
121 int ret;
122
123 ret = iwl_mvm_rate_control_register();
124 if (ret) {
125 pr_err("Unable to register rate control algorithm: %d\n", ret);
126 return ret;
127 }
128
129 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
130
131 if (ret) {
132 pr_err("Unable to register MVM op_mode: %d\n", ret);
133 iwl_mvm_rate_control_unregister();
134 }
135
136 return ret;
137 }
138 module_init(iwl_mvm_init);
139
140 static void __exit iwl_mvm_exit(void)
141 {
142 iwl_opmode_deregister("iwlmvm");
143 iwl_mvm_rate_control_unregister();
144 }
145 module_exit(iwl_mvm_exit);
146
147 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
148 {
149 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
150 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
151 u32 reg_val = 0;
152 u32 phy_config = iwl_mvm_get_phy_config(mvm);
153
154 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
155 FW_PHY_CFG_RADIO_TYPE_POS;
156 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
157 FW_PHY_CFG_RADIO_STEP_POS;
158 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
159 FW_PHY_CFG_RADIO_DASH_POS;
160
161 /* SKU control */
162 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
163 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
164 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
165 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
166
167 /* radio configuration */
168 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
169 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
170 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
171
172 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
173 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
174
175 /*
176 * TODO: Bits 7-8 of CSR in 8000 HW family and higher set the ADC
177 * sampling, and shouldn't be set to any non-zero value.
178 * The same is supposed to be true of the other HW, but unsetting
179 * them (such as the 7260) causes automatic tests to fail on seemingly
180 * unrelated errors. Need to further investigate this, but for now
181 * we'll separate cases.
182 */
183 if (mvm->trans->cfg->device_family < IWL_DEVICE_FAMILY_8000)
184 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
185
186 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
187 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
188 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
189 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
190 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
191 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
192 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
193 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
194 reg_val);
195
196 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
197 radio_cfg_step, radio_cfg_dash);
198
199 /*
200 * W/A : NIC is stuck in a reset state after Early PCIe power off
201 * (PCIe power is lost before PERST# is asserted), causing ME FW
202 * to lose ownership and not being able to obtain it back.
203 */
204 if (!mvm->trans->cfg->apmg_not_supported)
205 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
206 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
207 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
208 }
209
210 /**
211 * enum iwl_rx_handler_context context for Rx handler
212 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
213 * which can't acquire mvm->mutex.
214 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
215 * (and only in this case!), it should be set as ASYNC. In that case,
216 * it will be called from a worker with mvm->mutex held.
217 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
218 * mutex itself, it will be called from a worker without mvm->mutex held.
219 */
220 enum iwl_rx_handler_context {
221 RX_HANDLER_SYNC,
222 RX_HANDLER_ASYNC_LOCKED,
223 RX_HANDLER_ASYNC_UNLOCKED,
224 };
225
226 /**
227 * struct iwl_rx_handlers handler for FW notification
228 * @cmd_id: command id
229 * @context: see &iwl_rx_handler_context
230 * @fn: the function is called when notification is received
231 */
232 struct iwl_rx_handlers {
233 u16 cmd_id;
234 enum iwl_rx_handler_context context;
235 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
236 };
237
238 #define RX_HANDLER(_cmd_id, _fn, _context) \
239 { .cmd_id = _cmd_id, .fn = _fn, .context = _context }
240 #define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \
241 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context }
242
243 /*
244 * Handlers for fw notifications
245 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
246 * This list should be in order of frequency for performance purposes.
247 *
248 * The handler can be one from three contexts, see &iwl_rx_handler_context
249 */
250 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
251 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC),
252 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC),
253
254 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
255 RX_HANDLER_ASYNC_LOCKED),
256 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
257 RX_HANDLER_ASYNC_LOCKED),
258 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
259 RX_HANDLER_ASYNC_LOCKED),
260 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
261 iwl_mvm_rx_ant_coupling_notif, RX_HANDLER_ASYNC_LOCKED),
262
263 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
264 iwl_mvm_window_status_notif, RX_HANDLER_SYNC),
265
266 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
267 RX_HANDLER_SYNC),
268 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
269 RX_HANDLER_ASYNC_LOCKED),
270
271 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC),
272
273 RX_HANDLER(SCAN_ITERATION_COMPLETE,
274 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC),
275 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
276 iwl_mvm_rx_lmac_scan_complete_notif,
277 RX_HANDLER_ASYNC_LOCKED),
278 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
279 RX_HANDLER_SYNC),
280 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
281 RX_HANDLER_ASYNC_LOCKED),
282 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
283 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC),
284
285 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
286 RX_HANDLER_SYNC),
287
288 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
289 RX_HANDLER_SYNC),
290
291 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC),
292 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
293 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC),
294 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
295 RX_HANDLER_ASYNC_LOCKED),
296 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
297 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
298 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
299 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC),
300
301 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
302 RX_HANDLER_ASYNC_LOCKED),
303 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
304 RX_HANDLER_SYNC),
305 RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler,
306 RX_HANDLER_ASYNC_LOCKED),
307 RX_HANDLER_GRP(DEBUG_GROUP, MFU_ASSERT_DUMP_NTF,
308 iwl_mvm_mfu_assert_dump_notif, RX_HANDLER_SYNC),
309 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
310 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC),
311 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
312 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC),
313 RX_HANDLER_GRP(DATA_PATH_GROUP, STA_PM_NOTIF,
314 iwl_mvm_sta_pm_notif, RX_HANDLER_SYNC),
315 };
316 #undef RX_HANDLER
317 #undef RX_HANDLER_GRP
318
319 /* Please keep this array *SORTED* by hex value.
320 * Access is done through binary search
321 */
322 static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
323 HCMD_NAME(MVM_ALIVE),
324 HCMD_NAME(REPLY_ERROR),
325 HCMD_NAME(ECHO_CMD),
326 HCMD_NAME(INIT_COMPLETE_NOTIF),
327 HCMD_NAME(PHY_CONTEXT_CMD),
328 HCMD_NAME(DBG_CFG),
329 HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION),
330 HCMD_NAME(SCAN_CFG_CMD),
331 HCMD_NAME(SCAN_REQ_UMAC),
332 HCMD_NAME(SCAN_ABORT_UMAC),
333 HCMD_NAME(SCAN_COMPLETE_UMAC),
334 HCMD_NAME(TOF_CMD),
335 HCMD_NAME(TOF_NOTIFICATION),
336 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
337 HCMD_NAME(ADD_STA_KEY),
338 HCMD_NAME(ADD_STA),
339 HCMD_NAME(REMOVE_STA),
340 HCMD_NAME(FW_GET_ITEM_CMD),
341 HCMD_NAME(TX_CMD),
342 HCMD_NAME(SCD_QUEUE_CFG),
343 HCMD_NAME(TXPATH_FLUSH),
344 HCMD_NAME(MGMT_MCAST_KEY),
345 HCMD_NAME(WEP_KEY),
346 HCMD_NAME(SHARED_MEM_CFG),
347 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
348 HCMD_NAME(MAC_CONTEXT_CMD),
349 HCMD_NAME(TIME_EVENT_CMD),
350 HCMD_NAME(TIME_EVENT_NOTIFICATION),
351 HCMD_NAME(BINDING_CONTEXT_CMD),
352 HCMD_NAME(TIME_QUOTA_CMD),
353 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
354 HCMD_NAME(LQ_CMD),
355 HCMD_NAME(FW_PAGING_BLOCK_CMD),
356 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
357 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
358 HCMD_NAME(HOT_SPOT_CMD),
359 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
360 HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT),
361 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
362 HCMD_NAME(BT_COEX_CI),
363 HCMD_NAME(PHY_CONFIGURATION_CMD),
364 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
365 HCMD_NAME(PHY_DB_CMD),
366 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
367 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
368 HCMD_NAME(POWER_TABLE_CMD),
369 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
370 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
371 HCMD_NAME(DC2DC_CONFIG_CMD),
372 HCMD_NAME(NVM_ACCESS_CMD),
373 HCMD_NAME(BEACON_NOTIFICATION),
374 HCMD_NAME(BEACON_TEMPLATE_CMD),
375 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
376 HCMD_NAME(BT_CONFIG),
377 HCMD_NAME(STATISTICS_CMD),
378 HCMD_NAME(STATISTICS_NOTIFICATION),
379 HCMD_NAME(EOSP_NOTIFICATION),
380 HCMD_NAME(REDUCE_TX_POWER_CMD),
381 HCMD_NAME(CARD_STATE_NOTIFICATION),
382 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
383 HCMD_NAME(TDLS_CONFIG_CMD),
384 HCMD_NAME(MAC_PM_POWER_TABLE),
385 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
386 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
387 HCMD_NAME(RSS_CONFIG_CMD),
388 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
389 HCMD_NAME(REPLY_RX_PHY_CMD),
390 HCMD_NAME(REPLY_RX_MPDU_CMD),
391 HCMD_NAME(BA_NOTIF),
392 HCMD_NAME(MCC_UPDATE_CMD),
393 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
394 HCMD_NAME(MARKER_CMD),
395 HCMD_NAME(BT_PROFILE_NOTIFICATION),
396 HCMD_NAME(BCAST_FILTER_CMD),
397 HCMD_NAME(MCAST_FILTER_CMD),
398 HCMD_NAME(REPLY_SF_CFG_CMD),
399 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
400 HCMD_NAME(D3_CONFIG_CMD),
401 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
402 HCMD_NAME(OFFLOADS_QUERY_CMD),
403 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
404 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
405 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
406 HCMD_NAME(WOWLAN_PATTERNS),
407 HCMD_NAME(WOWLAN_CONFIGURATION),
408 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
409 HCMD_NAME(WOWLAN_TKIP_PARAM),
410 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
411 HCMD_NAME(WOWLAN_GET_STATUSES),
412 HCMD_NAME(SCAN_ITERATION_COMPLETE),
413 HCMD_NAME(D0I3_END_CMD),
414 HCMD_NAME(LTR_CONFIG),
415 };
416
417 /* Please keep this array *SORTED* by hex value.
418 * Access is done through binary search
419 */
420 static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
421 HCMD_NAME(SHARED_MEM_CFG_CMD),
422 HCMD_NAME(INIT_EXTENDED_CFG_CMD),
423 };
424
425 /* Please keep this array *SORTED* by hex value.
426 * Access is done through binary search
427 */
428 static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
429 HCMD_NAME(LINK_QUALITY_MEASUREMENT_CMD),
430 HCMD_NAME(LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF),
431 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
432 };
433
434 /* Please keep this array *SORTED* by hex value.
435 * Access is done through binary search
436 */
437 static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
438 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
439 HCMD_NAME(CTDP_CONFIG_CMD),
440 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
441 HCMD_NAME(GEO_TX_POWER_LIMIT),
442 HCMD_NAME(CT_KILL_NOTIFICATION),
443 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
444 };
445
446 /* Please keep this array *SORTED* by hex value.
447 * Access is done through binary search
448 */
449 static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
450 HCMD_NAME(DQA_ENABLE_CMD),
451 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
452 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
453 HCMD_NAME(STA_PM_NOTIF),
454 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
455 HCMD_NAME(RX_QUEUES_NOTIFICATION),
456 };
457
458 /* Please keep this array *SORTED* by hex value.
459 * Access is done through binary search
460 */
461 static const struct iwl_hcmd_names iwl_mvm_debug_names[] = {
462 HCMD_NAME(MFU_ASSERT_DUMP_NTF),
463 };
464
465 /* Please keep this array *SORTED* by hex value.
466 * Access is done through binary search
467 */
468 static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
469 HCMD_NAME(STORED_BEACON_NTF),
470 };
471
472 /* Please keep this array *SORTED* by hex value.
473 * Access is done through binary search
474 */
475 static const struct iwl_hcmd_names iwl_mvm_regulatory_and_nvm_names[] = {
476 HCMD_NAME(NVM_ACCESS_COMPLETE),
477 HCMD_NAME(NVM_GET_INFO),
478 };
479
480 static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
481 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
482 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
483 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
484 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
485 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
486 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
487 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
488 [REGULATORY_AND_NVM_GROUP] =
489 HCMD_ARR(iwl_mvm_regulatory_and_nvm_names),
490 };
491
492 /* this forward declaration can avoid to export the function */
493 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
494 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
495
496 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
497 {
498 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
499
500 if (!pwr_tx_backoff)
501 return 0;
502
503 while (pwr_tx_backoff->pwr) {
504 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
505 return pwr_tx_backoff->backoff;
506
507 pwr_tx_backoff++;
508 }
509
510 return 0;
511 }
512
513 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
514
515 static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
516 {
517 struct iwl_mvm *mvm =
518 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
519 struct ieee80211_vif *tx_blocked_vif;
520 struct iwl_mvm_vif *mvmvif;
521
522 mutex_lock(&mvm->mutex);
523
524 tx_blocked_vif =
525 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
526 lockdep_is_held(&mvm->mutex));
527
528 if (!tx_blocked_vif)
529 goto unlock;
530
531 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
532 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
533 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
534 unlock:
535 mutex_unlock(&mvm->mutex);
536 }
537
538 static struct iwl_op_mode *
539 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
540 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
541 {
542 struct ieee80211_hw *hw;
543 struct iwl_op_mode *op_mode;
544 struct iwl_mvm *mvm;
545 struct iwl_trans_config trans_cfg = {};
546 static const u8 no_reclaim_cmds[] = {
547 TX_CMD,
548 };
549 int err, scan_size;
550 u32 min_backoff;
551
552 /*
553 * We use IWL_MVM_STATION_COUNT to check the validity of the station
554 * index all over the driver - check that its value corresponds to the
555 * array size.
556 */
557 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
558
559 /********************************
560 * 1. Allocating and configuring HW data
561 ********************************/
562 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
563 sizeof(struct iwl_mvm),
564 &iwl_mvm_hw_ops);
565 if (!hw)
566 return NULL;
567
568 if (cfg->max_rx_agg_size)
569 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
570
571 if (cfg->max_tx_agg_size)
572 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
573
574 op_mode = hw->priv;
575
576 mvm = IWL_OP_MODE_GET_MVM(op_mode);
577 mvm->dev = trans->dev;
578 mvm->trans = trans;
579 mvm->cfg = cfg;
580 mvm->fw = fw;
581 mvm->hw = hw;
582
583 mvm->init_status = 0;
584
585 if (iwl_mvm_has_new_rx_api(mvm)) {
586 op_mode->ops = &iwl_mvm_ops_mq;
587 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc);
588 } else {
589 op_mode->ops = &iwl_mvm_ops;
590 trans->rx_mpdu_cmd_hdr_size =
591 sizeof(struct iwl_rx_mpdu_res_start);
592
593 if (WARN_ON(trans->num_rx_queues > 1))
594 goto out_free;
595 }
596
597 mvm->fw_restart = iwlwifi_mod_params.fw_restart ? -1 : 0;
598
599 if (!iwl_mvm_is_dqa_supported(mvm)) {
600 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
601
602 if (mvm->cfg->base_params->num_of_queues == 16) {
603 mvm->aux_queue = 11;
604 mvm->first_agg_queue = 12;
605 } else {
606 mvm->aux_queue = 15;
607 mvm->first_agg_queue = 16;
608 }
609 } else {
610 mvm->aux_queue = IWL_MVM_DQA_AUX_QUEUE;
611 mvm->probe_queue = IWL_MVM_DQA_AP_PROBE_RESP_QUEUE;
612 mvm->p2p_dev_queue = IWL_MVM_DQA_P2P_DEVICE_QUEUE;
613 mvm->first_agg_queue = IWL_MVM_DQA_MIN_DATA_QUEUE;
614 mvm->last_agg_queue = IWL_MVM_DQA_MAX_DATA_QUEUE;
615 }
616 mvm->sf_state = SF_UNINIT;
617 if (iwl_mvm_has_new_tx_api(mvm))
618 mvm->cur_ucode = IWL_UCODE_REGULAR;
619 else
620 mvm->cur_ucode = IWL_UCODE_INIT;
621 mvm->drop_bcn_ap_mode = true;
622
623 mutex_init(&mvm->mutex);
624 mutex_init(&mvm->d0i3_suspend_mutex);
625 spin_lock_init(&mvm->async_handlers_lock);
626 INIT_LIST_HEAD(&mvm->time_event_list);
627 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
628 INIT_LIST_HEAD(&mvm->async_handlers_list);
629 spin_lock_init(&mvm->time_event_lock);
630 spin_lock_init(&mvm->queue_info_lock);
631
632 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
633 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
634 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
635 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
636 INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
637 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
638 INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
639 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
640
641 spin_lock_init(&mvm->d0i3_tx_lock);
642 spin_lock_init(&mvm->refs_lock);
643 skb_queue_head_init(&mvm->d0i3_tx);
644 init_waitqueue_head(&mvm->d0i3_exit_waitq);
645 init_waitqueue_head(&mvm->rx_sync_waitq);
646
647 atomic_set(&mvm->queue_sync_counter, 0);
648
649 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
650
651 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
652
653 /*
654 * Populate the state variables that the transport layer needs
655 * to know about.
656 */
657 trans_cfg.op_mode = op_mode;
658 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
659 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
660 switch (iwlwifi_mod_params.amsdu_size) {
661 case IWL_AMSDU_DEF:
662 case IWL_AMSDU_4K:
663 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
664 break;
665 case IWL_AMSDU_8K:
666 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
667 break;
668 case IWL_AMSDU_12K:
669 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
670 break;
671 default:
672 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
673 iwlwifi_mod_params.amsdu_size);
674 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
675 }
676
677 /* the hardware splits the A-MSDU */
678 if (mvm->cfg->mq_rx_supported)
679 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
680
681 trans->wide_cmd_header = true;
682 trans_cfg.bc_table_dword = true;
683
684 trans_cfg.command_groups = iwl_mvm_groups;
685 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
686
687 if (iwl_mvm_is_dqa_supported(mvm))
688 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
689 else
690 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
691 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
692 trans_cfg.scd_set_active = true;
693
694 trans_cfg.cb_data_offs = offsetof(struct ieee80211_tx_info,
695 driver_data[2]);
696
697 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
698 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
699
700 /* Set a short watchdog for the command queue */
701 trans_cfg.cmd_q_wdg_timeout =
702 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
703
704 snprintf(mvm->hw->wiphy->fw_version,
705 sizeof(mvm->hw->wiphy->fw_version),
706 "%s", fw->fw_version);
707
708 /* Configure transport layer */
709 iwl_trans_configure(mvm->trans, &trans_cfg);
710
711 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
712 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
713 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
714 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
715 sizeof(trans->dbg_conf_tlv));
716 trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
717
718 /* set up notification wait support */
719 iwl_notification_wait_init(&mvm->notif_wait);
720
721 /* Init phy db */
722 mvm->phy_db = iwl_phy_db_init(trans);
723 if (!mvm->phy_db) {
724 IWL_ERR(mvm, "Cannot init phy_db\n");
725 goto out_free;
726 }
727
728 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
729 mvm->cfg->name, mvm->trans->hw_rev);
730
731 if (iwlwifi_mod_params.nvm_file)
732 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
733 else
734 IWL_DEBUG_EEPROM(mvm->trans->dev,
735 "working without external nvm file\n");
736
737 err = iwl_trans_start_hw(mvm->trans);
738 if (err)
739 goto out_free;
740
741 mutex_lock(&mvm->mutex);
742 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
743 err = iwl_run_init_mvm_ucode(mvm, true);
744 if (!err || !iwlmvm_mod_params.init_dbg)
745 iwl_mvm_stop_device(mvm);
746 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
747 mutex_unlock(&mvm->mutex);
748 /* returns 0 if successful, 1 if success but in rfkill */
749 if (err < 0) {
750 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
751 goto out_free;
752 }
753
754 scan_size = iwl_mvm_scan_size(mvm);
755
756 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
757 if (!mvm->scan_cmd)
758 goto out_free;
759
760 /* Set EBS as successful as long as not stated otherwise by the FW. */
761 mvm->last_ebs_successful = true;
762
763 err = iwl_mvm_mac_setup_register(mvm);
764 if (err)
765 goto out_free;
766 mvm->hw_registered = true;
767
768 min_backoff = calc_min_backoff(trans, cfg);
769 iwl_mvm_thermal_initialize(mvm, min_backoff);
770
771 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
772 if (err)
773 goto out_unregister;
774
775 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
776
777 /* The transport always starts with a taken reference, we can
778 * release it now if d0i3 is supported */
779 if (iwl_mvm_is_d0i3_supported(mvm))
780 iwl_trans_unref(mvm->trans);
781
782 iwl_mvm_tof_init(mvm);
783
784 return op_mode;
785
786 out_unregister:
787 if (iwlmvm_mod_params.init_dbg)
788 return op_mode;
789
790 ieee80211_unregister_hw(mvm->hw);
791 mvm->hw_registered = false;
792 iwl_mvm_leds_exit(mvm);
793 iwl_mvm_thermal_exit(mvm);
794 out_free:
795 flush_delayed_work(&mvm->fw_dump_wk);
796
797 if (iwlmvm_mod_params.init_dbg)
798 return op_mode;
799 iwl_phy_db_free(mvm->phy_db);
800 kfree(mvm->scan_cmd);
801 iwl_trans_op_mode_leave(trans);
802
803 ieee80211_free_hw(mvm->hw);
804 return NULL;
805 }
806
807 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
808 {
809 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
810 int i;
811
812 /* If d0i3 is supported, we have released the reference that
813 * the transport started with, so we should take it back now
814 * that we are leaving.
815 */
816 if (iwl_mvm_is_d0i3_supported(mvm))
817 iwl_trans_ref(mvm->trans);
818
819 iwl_mvm_leds_exit(mvm);
820
821 iwl_mvm_thermal_exit(mvm);
822
823 if (mvm->init_status & IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE) {
824 ieee80211_unregister_hw(mvm->hw);
825 mvm->init_status &= ~IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
826 }
827
828 kfree(mvm->scan_cmd);
829 kfree(mvm->mcast_filter_cmd);
830 mvm->mcast_filter_cmd = NULL;
831
832 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
833 kfree(mvm->d3_resume_sram);
834 #endif
835
836 iwl_trans_op_mode_leave(mvm->trans);
837
838 iwl_phy_db_free(mvm->phy_db);
839 mvm->phy_db = NULL;
840
841 kfree(mvm->nvm_data);
842 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
843 kfree(mvm->nvm_sections[i].data);
844
845 iwl_mvm_tof_clean(mvm);
846
847 mutex_destroy(&mvm->mutex);
848 mutex_destroy(&mvm->d0i3_suspend_mutex);
849
850 ieee80211_free_hw(mvm->hw);
851 }
852
853 struct iwl_async_handler_entry {
854 struct list_head list;
855 struct iwl_rx_cmd_buffer rxb;
856 enum iwl_rx_handler_context context;
857 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
858 };
859
860 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
861 {
862 struct iwl_async_handler_entry *entry, *tmp;
863
864 spin_lock_bh(&mvm->async_handlers_lock);
865 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
866 iwl_free_rxb(&entry->rxb);
867 list_del(&entry->list);
868 kfree(entry);
869 }
870 spin_unlock_bh(&mvm->async_handlers_lock);
871 }
872
873 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
874 {
875 struct iwl_mvm *mvm =
876 container_of(wk, struct iwl_mvm, async_handlers_wk);
877 struct iwl_async_handler_entry *entry, *tmp;
878 LIST_HEAD(local_list);
879
880 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
881
882 /*
883 * Sync with Rx path with a lock. Remove all the entries from this list,
884 * add them to a local one (lock free), and then handle them.
885 */
886 spin_lock_bh(&mvm->async_handlers_lock);
887 list_splice_init(&mvm->async_handlers_list, &local_list);
888 spin_unlock_bh(&mvm->async_handlers_lock);
889
890 list_for_each_entry_safe(entry, tmp, &local_list, list) {
891 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
892 mutex_lock(&mvm->mutex);
893 entry->fn(mvm, &entry->rxb);
894 iwl_free_rxb(&entry->rxb);
895 list_del(&entry->list);
896 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
897 mutex_unlock(&mvm->mutex);
898 kfree(entry);
899 }
900 }
901
902 static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
903 struct iwl_rx_packet *pkt)
904 {
905 struct iwl_fw_dbg_trigger_tlv *trig;
906 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
907 int i;
908
909 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
910 return;
911
912 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
913 cmds_trig = (void *)trig->data;
914
915 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
916 return;
917
918 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
919 /* don't collect on CMD 0 */
920 if (!cmds_trig->cmds[i].cmd_id)
921 break;
922
923 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
924 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
925 continue;
926
927 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
928 "CMD 0x%02x.%02x received",
929 pkt->hdr.group_id, pkt->hdr.cmd);
930 break;
931 }
932 }
933
934 static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
935 struct iwl_rx_cmd_buffer *rxb,
936 struct iwl_rx_packet *pkt)
937 {
938 int i;
939
940 iwl_mvm_rx_check_trigger(mvm, pkt);
941
942 /*
943 * Do the notification wait before RX handlers so
944 * even if the RX handler consumes the RXB we have
945 * access to it in the notification wait entry.
946 */
947 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
948
949 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
950 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
951 struct iwl_async_handler_entry *entry;
952
953 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
954 continue;
955
956 if (rx_h->context == RX_HANDLER_SYNC) {
957 rx_h->fn(mvm, rxb);
958 return;
959 }
960
961 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
962 /* we can't do much... */
963 if (!entry)
964 return;
965
966 entry->rxb._page = rxb_steal_page(rxb);
967 entry->rxb._offset = rxb->_offset;
968 entry->rxb._rx_page_order = rxb->_rx_page_order;
969 entry->fn = rx_h->fn;
970 entry->context = rx_h->context;
971 spin_lock(&mvm->async_handlers_lock);
972 list_add_tail(&entry->list, &mvm->async_handlers_list);
973 spin_unlock(&mvm->async_handlers_lock);
974 schedule_work(&mvm->async_handlers_wk);
975 break;
976 }
977 }
978
979 static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
980 struct napi_struct *napi,
981 struct iwl_rx_cmd_buffer *rxb)
982 {
983 struct iwl_rx_packet *pkt = rxb_addr(rxb);
984 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
985 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
986
987 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
988 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
989 else if (cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_PHY_CMD))
990 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
991 else
992 iwl_mvm_rx_common(mvm, rxb, pkt);
993 }
994
995 static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
996 struct napi_struct *napi,
997 struct iwl_rx_cmd_buffer *rxb)
998 {
999 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1000 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1001 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1002
1003 if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1004 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
1005 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1006 RX_QUEUES_NOTIFICATION)))
1007 iwl_mvm_rx_queue_notif(mvm, rxb, 0);
1008 else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
1009 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
1010 else
1011 iwl_mvm_rx_common(mvm, rxb, pkt);
1012 }
1013
1014 void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
1015 {
1016 int q;
1017
1018 if (WARN_ON_ONCE(!mq))
1019 return;
1020
1021 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1022 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
1023 IWL_DEBUG_TX_QUEUES(mvm,
1024 "mac80211 %d already stopped\n", q);
1025 continue;
1026 }
1027
1028 ieee80211_stop_queue(mvm->hw, q);
1029 }
1030 }
1031
1032 static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1033 const struct iwl_device_cmd *cmd)
1034 {
1035 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1036
1037 /*
1038 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1039 * commands that need to block the Tx queues.
1040 */
1041 iwl_trans_block_txq_ptrs(mvm->trans, false);
1042 }
1043
1044 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1045 {
1046 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1047 unsigned long mq;
1048
1049 spin_lock_bh(&mvm->queue_info_lock);
1050 mq = mvm->hw_queue_to_mac80211[hw_queue];
1051 spin_unlock_bh(&mvm->queue_info_lock);
1052
1053 iwl_mvm_stop_mac_queues(mvm, mq);
1054 }
1055
1056 void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
1057 {
1058 int q;
1059
1060 if (WARN_ON_ONCE(!mq))
1061 return;
1062
1063 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1064 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
1065 IWL_DEBUG_TX_QUEUES(mvm,
1066 "mac80211 %d still stopped\n", q);
1067 continue;
1068 }
1069
1070 ieee80211_wake_queue(mvm->hw, q);
1071 }
1072 }
1073
1074 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1075 {
1076 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1077 unsigned long mq;
1078
1079 spin_lock_bh(&mvm->queue_info_lock);
1080 mq = mvm->hw_queue_to_mac80211[hw_queue];
1081 spin_unlock_bh(&mvm->queue_info_lock);
1082
1083 iwl_mvm_start_mac_queues(mvm, mq);
1084 }
1085
1086 static void iwl_mvm_set_rfkill_state(struct iwl_mvm *mvm)
1087 {
1088 bool state = iwl_mvm_is_radio_killed(mvm);
1089
1090 if (state)
1091 wake_up(&mvm->rx_sync_waitq);
1092
1093 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
1094 }
1095
1096 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1097 {
1098 if (state)
1099 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1100 else
1101 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1102
1103 iwl_mvm_set_rfkill_state(mvm);
1104 }
1105
1106 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
1107 {
1108 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1109 bool calibrating = ACCESS_ONCE(mvm->calibrating);
1110
1111 if (state)
1112 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1113 else
1114 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1115
1116 iwl_mvm_set_rfkill_state(mvm);
1117
1118 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
1119 if (calibrating)
1120 iwl_abort_notification_waits(&mvm->notif_wait);
1121
1122 /*
1123 * Stop the device if we run OPERATIONAL firmware or if we are in the
1124 * middle of the calibrations.
1125 */
1126 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
1127 }
1128
1129 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1130 {
1131 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1132 struct ieee80211_tx_info *info;
1133
1134 info = IEEE80211_SKB_CB(skb);
1135 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1136 ieee80211_free_txskb(mvm->hw, skb);
1137 }
1138
1139 struct iwl_mvm_reprobe {
1140 struct device *dev;
1141 struct work_struct work;
1142 };
1143
1144 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1145 {
1146 struct iwl_mvm_reprobe *reprobe;
1147
1148 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1149 if (device_reprobe(reprobe->dev))
1150 dev_err(reprobe->dev, "reprobe failed!\n");
1151 kfree(reprobe);
1152 module_put(THIS_MODULE);
1153 }
1154
1155 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
1156 {
1157 struct iwl_mvm *mvm =
1158 container_of(work, struct iwl_mvm, fw_dump_wk.work);
1159
1160 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
1161 return;
1162
1163 mutex_lock(&mvm->mutex);
1164
1165 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1166 /* stop recording */
1167 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1168
1169 iwl_mvm_fw_error_dump(mvm);
1170
1171 /* start recording again if the firmware is not crashed */
1172 if (!test_bit(STATUS_FW_ERROR, &mvm->trans->status) &&
1173 mvm->fw->dbg_dest_tlv) {
1174 iwl_clear_bits_prph(mvm->trans,
1175 MON_BUFF_SAMPLE_CTL, 0x100);
1176 iwl_clear_bits_prph(mvm->trans,
1177 MON_BUFF_SAMPLE_CTL, 0x1);
1178 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x1);
1179 }
1180 } else {
1181 u32 in_sample = iwl_read_prph(mvm->trans, DBGC_IN_SAMPLE);
1182 u32 out_ctrl = iwl_read_prph(mvm->trans, DBGC_OUT_CTRL);
1183
1184 /* stop recording */
1185 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1186 udelay(100);
1187 iwl_write_prph(mvm->trans, DBGC_OUT_CTRL, 0);
1188 /* wait before we collect the data till the DBGC stop */
1189 udelay(500);
1190
1191 iwl_mvm_fw_error_dump(mvm);
1192
1193 /* start recording again if the firmware is not crashed */
1194 if (!test_bit(STATUS_FW_ERROR, &mvm->trans->status) &&
1195 mvm->fw->dbg_dest_tlv) {
1196 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, in_sample);
1197 iwl_write_prph(mvm->trans, DBGC_OUT_CTRL, out_ctrl);
1198 }
1199 }
1200
1201 mutex_unlock(&mvm->mutex);
1202
1203 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
1204 }
1205
1206 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
1207 {
1208 iwl_abort_notification_waits(&mvm->notif_wait);
1209
1210 /*
1211 * This is a bit racy, but worst case we tell mac80211 about
1212 * a stopped/aborted scan when that was already done which
1213 * is not a problem. It is necessary to abort any os scan
1214 * here because mac80211 requires having the scan cleared
1215 * before restarting.
1216 * We'll reset the scan_status to NONE in restart cleanup in
1217 * the next start() call from mac80211. If restart isn't called
1218 * (no fw restart) scan status will stay busy.
1219 */
1220 iwl_mvm_report_scan_aborted(mvm);
1221
1222 /*
1223 * If we're restarting already, don't cycle restarts.
1224 * If INIT fw asserted, it will likely fail again.
1225 * If WoWLAN fw asserted, don't restart either, mac80211
1226 * can't recover this since we're already half suspended.
1227 */
1228 if (!mvm->fw_restart && fw_error) {
1229 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1230 NULL);
1231 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1232 &mvm->status)) {
1233 struct iwl_mvm_reprobe *reprobe;
1234
1235 IWL_ERR(mvm,
1236 "Firmware error during reconfiguration - reprobe!\n");
1237
1238 /*
1239 * get a module reference to avoid doing this while unloading
1240 * anyway and to avoid scheduling a work with code that's
1241 * being removed.
1242 */
1243 if (!try_module_get(THIS_MODULE)) {
1244 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1245 return;
1246 }
1247
1248 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1249 if (!reprobe) {
1250 module_put(THIS_MODULE);
1251 return;
1252 }
1253 reprobe->dev = mvm->trans->dev;
1254 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1255 schedule_work(&reprobe->work);
1256 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
1257 mvm->hw_registered) {
1258 /* don't let the transport/FW power down */
1259 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1260
1261 if (fw_error && mvm->fw_restart > 0)
1262 mvm->fw_restart--;
1263 ieee80211_restart_hw(mvm->hw);
1264 }
1265 }
1266
1267 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1268 {
1269 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1270
1271 iwl_mvm_dump_nic_error_log(mvm);
1272
1273 iwl_mvm_nic_restart(mvm, true);
1274 }
1275
1276 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1277 {
1278 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1279
1280 WARN_ON(1);
1281 iwl_mvm_nic_restart(mvm, true);
1282 }
1283
1284 struct iwl_d0i3_iter_data {
1285 struct iwl_mvm *mvm;
1286 struct ieee80211_vif *connected_vif;
1287 u8 ap_sta_id;
1288 u8 vif_count;
1289 u8 offloading_tid;
1290 bool disable_offloading;
1291 };
1292
1293 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1294 struct ieee80211_vif *vif,
1295 struct iwl_d0i3_iter_data *iter_data)
1296 {
1297 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1298 struct iwl_mvm_sta *mvmsta;
1299 u32 available_tids = 0;
1300 u8 tid;
1301
1302 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1303 mvmvif->ap_sta_id == IWL_MVM_INVALID_STA))
1304 return false;
1305
1306 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id);
1307 if (!mvmsta)
1308 return false;
1309
1310 spin_lock_bh(&mvmsta->lock);
1311 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1312 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1313
1314 /*
1315 * in case of pending tx packets, don't use this tid
1316 * for offloading in order to prevent reuse of the same
1317 * qos seq counters.
1318 */
1319 if (iwl_mvm_tid_queued(mvm, tid_data))
1320 continue;
1321
1322 if (tid_data->state != IWL_AGG_OFF)
1323 continue;
1324
1325 available_tids |= BIT(tid);
1326 }
1327 spin_unlock_bh(&mvmsta->lock);
1328
1329 /*
1330 * disallow protocol offloading if we have no available tid
1331 * (with no pending frames and no active aggregation,
1332 * as we don't handle "holes" properly - the scheduler needs the
1333 * frame's seq number and TFD index to match)
1334 */
1335 if (!available_tids)
1336 return true;
1337
1338 /* for simplicity, just use the first available tid */
1339 iter_data->offloading_tid = ffs(available_tids) - 1;
1340 return false;
1341 }
1342
1343 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1344 struct ieee80211_vif *vif)
1345 {
1346 struct iwl_d0i3_iter_data *data = _data;
1347 struct iwl_mvm *mvm = data->mvm;
1348 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1349 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1350
1351 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1352 if (vif->type != NL80211_IFTYPE_STATION ||
1353 !vif->bss_conf.assoc)
1354 return;
1355
1356 /*
1357 * in case of pending tx packets or active aggregations,
1358 * avoid offloading features in order to prevent reuse of
1359 * the same qos seq counters.
1360 */
1361 if (iwl_mvm_disallow_offloading(mvm, vif, data))
1362 data->disable_offloading = true;
1363
1364 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
1365 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1366 false, flags);
1367
1368 /*
1369 * on init/association, mvm already configures POWER_TABLE_CMD
1370 * and REPLY_MCAST_FILTER_CMD, so currently don't
1371 * reconfigure them (we might want to use different
1372 * params later on, though).
1373 */
1374 data->ap_sta_id = mvmvif->ap_sta_id;
1375 data->vif_count++;
1376
1377 /*
1378 * no new commands can be sent at this stage, so it's safe
1379 * to save the vif pointer during d0i3 entrance.
1380 */
1381 data->connected_vif = vif;
1382 }
1383
1384 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1385 struct iwl_wowlan_config_cmd *cmd,
1386 struct iwl_d0i3_iter_data *iter_data)
1387 {
1388 struct ieee80211_sta *ap_sta;
1389 struct iwl_mvm_sta *mvm_ap_sta;
1390
1391 if (iter_data->ap_sta_id == IWL_MVM_INVALID_STA)
1392 return;
1393
1394 rcu_read_lock();
1395
1396 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1397 if (IS_ERR_OR_NULL(ap_sta))
1398 goto out;
1399
1400 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1401 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1402 cmd->offloading_tid = iter_data->offloading_tid;
1403 cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
1404 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
1405 /*
1406 * The d0i3 uCode takes care of the nonqos counters,
1407 * so configure only the qos seq ones.
1408 */
1409 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1410 out:
1411 rcu_read_unlock();
1412 }
1413
1414 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1415 {
1416 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1417 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1418 int ret;
1419 struct iwl_d0i3_iter_data d0i3_iter_data = {
1420 .mvm = mvm,
1421 };
1422 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1423 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1424 IWL_WOWLAN_WAKEUP_BEACON_MISS |
1425 IWL_WOWLAN_WAKEUP_LINK_CHANGE),
1426 };
1427 struct iwl_d3_manager_config d3_cfg_cmd = {
1428 .min_sleep_time = cpu_to_le32(1000),
1429 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
1430 };
1431
1432 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1433
1434 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1435 return -EINVAL;
1436
1437 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1438
1439 /*
1440 * iwl_mvm_ref_sync takes a reference before checking the flag.
1441 * so by checking there is no held reference we prevent a state
1442 * in which iwl_mvm_ref_sync continues successfully while we
1443 * configure the firmware to enter d0i3
1444 */
1445 if (iwl_mvm_ref_taken(mvm)) {
1446 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1447 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1448 wake_up(&mvm->d0i3_exit_waitq);
1449 return 1;
1450 }
1451
1452 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1453 IEEE80211_IFACE_ITER_NORMAL,
1454 iwl_mvm_enter_d0i3_iterator,
1455 &d0i3_iter_data);
1456 if (d0i3_iter_data.vif_count == 1) {
1457 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1458 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1459 } else {
1460 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1461 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
1462 mvm->d0i3_offloading = false;
1463 }
1464
1465 /* make sure we have no running tx while configuring the seqno */
1466 synchronize_net();
1467
1468 /* Flush the hw queues, in case something got queued during entry */
1469 /* TODO new tx api */
1470 if (iwl_mvm_has_new_tx_api(mvm)) {
1471 WARN_ONCE(1, "d0i3: Need to implement flush TX queue\n");
1472 } else {
1473 ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm),
1474 flags);
1475 if (ret)
1476 return ret;
1477 }
1478
1479 /* configure wowlan configuration only if needed */
1480 if (mvm->d0i3_ap_sta_id != IWL_MVM_INVALID_STA) {
1481 /* wake on beacons only if beacon storing isn't supported */
1482 if (!fw_has_capa(&mvm->fw->ucode_capa,
1483 IWL_UCODE_TLV_CAPA_BEACON_STORING))
1484 wowlan_config_cmd.wakeup_filter |=
1485 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1486
1487 iwl_mvm_wowlan_config_key_params(mvm,
1488 d0i3_iter_data.connected_vif,
1489 true, flags);
1490
1491 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1492 &d0i3_iter_data);
1493
1494 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1495 sizeof(wowlan_config_cmd),
1496 &wowlan_config_cmd);
1497 if (ret)
1498 return ret;
1499 }
1500
1501 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1502 flags | CMD_MAKE_TRANS_IDLE,
1503 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1504 }
1505
1506 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1507 struct ieee80211_vif *vif)
1508 {
1509 struct iwl_mvm *mvm = _data;
1510 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1511
1512 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1513 if (vif->type != NL80211_IFTYPE_STATION ||
1514 !vif->bss_conf.assoc)
1515 return;
1516
1517 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1518 }
1519
1520 struct iwl_mvm_d0i3_exit_work_iter_data {
1521 struct iwl_mvm *mvm;
1522 struct iwl_wowlan_status *status;
1523 u32 wakeup_reasons;
1524 };
1525
1526 static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1527 struct ieee80211_vif *vif)
1528 {
1529 struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
1530 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1531 u32 reasons = data->wakeup_reasons;
1532
1533 /* consider only the relevant station interface */
1534 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1535 data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1536 return;
1537
1538 if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1539 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1540 else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1541 ieee80211_beacon_loss(vif);
1542 else
1543 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
1544 }
1545
1546 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1547 {
1548 struct ieee80211_sta *sta = NULL;
1549 struct iwl_mvm_sta *mvm_ap_sta;
1550 int i;
1551 bool wake_queues = false;
1552
1553 lockdep_assert_held(&mvm->mutex);
1554
1555 spin_lock_bh(&mvm->d0i3_tx_lock);
1556
1557 if (mvm->d0i3_ap_sta_id == IWL_MVM_INVALID_STA)
1558 goto out;
1559
1560 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1561
1562 /* get the sta in order to update seq numbers and re-enqueue skbs */
1563 sta = rcu_dereference_protected(
1564 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1565 lockdep_is_held(&mvm->mutex));
1566
1567 if (IS_ERR_OR_NULL(sta)) {
1568 sta = NULL;
1569 goto out;
1570 }
1571
1572 if (mvm->d0i3_offloading && qos_seq) {
1573 /* update qos seq numbers if offloading was enabled */
1574 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
1575 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1576 u16 seq = le16_to_cpu(qos_seq[i]);
1577 /* firmware stores last-used one, we store next one */
1578 seq += 0x10;
1579 mvm_ap_sta->tid_data[i].seq_number = seq;
1580 }
1581 }
1582 out:
1583 /* re-enqueue (or drop) all packets */
1584 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1585 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1586
1587 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1588 ieee80211_free_txskb(mvm->hw, skb);
1589
1590 /* if the skb_queue is not empty, we need to wake queues */
1591 wake_queues = true;
1592 }
1593 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1594 wake_up(&mvm->d0i3_exit_waitq);
1595 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
1596 if (wake_queues)
1597 ieee80211_wake_queues(mvm->hw);
1598
1599 spin_unlock_bh(&mvm->d0i3_tx_lock);
1600 }
1601
1602 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1603 {
1604 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1605 struct iwl_host_cmd get_status_cmd = {
1606 .id = WOWLAN_GET_STATUSES,
1607 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1608 };
1609 struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1610 .mvm = mvm,
1611 };
1612
1613 struct iwl_wowlan_status *status;
1614 int ret;
1615 u32 wakeup_reasons = 0;
1616 __le16 *qos_seq = NULL;
1617
1618 mutex_lock(&mvm->mutex);
1619 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1620 if (ret)
1621 goto out;
1622
1623 status = (void *)get_status_cmd.resp_pkt->data;
1624 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1625 qos_seq = status->qos_seq_ctr;
1626
1627 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1628
1629 iter_data.wakeup_reasons = wakeup_reasons;
1630 iter_data.status = status;
1631 ieee80211_iterate_active_interfaces(mvm->hw,
1632 IEEE80211_IFACE_ITER_NORMAL,
1633 iwl_mvm_d0i3_exit_work_iter,
1634 &iter_data);
1635 out:
1636 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1637
1638 IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1639 wakeup_reasons);
1640
1641 /* qos_seq might point inside resp_pkt, so free it only now */
1642 if (get_status_cmd.resp_pkt)
1643 iwl_free_resp(&get_status_cmd);
1644
1645 /* the FW might have updated the regdomain */
1646 iwl_mvm_update_changed_regdom(mvm);
1647
1648 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1649 mutex_unlock(&mvm->mutex);
1650 }
1651
1652 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1653 {
1654 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1655 CMD_WAKE_UP_TRANS;
1656 int ret;
1657
1658 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1659
1660 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1661 return -EINVAL;
1662
1663 mutex_lock(&mvm->d0i3_suspend_mutex);
1664 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1665 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1666 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1667 mutex_unlock(&mvm->d0i3_suspend_mutex);
1668 return 0;
1669 }
1670 mutex_unlock(&mvm->d0i3_suspend_mutex);
1671
1672 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1673 if (ret)
1674 goto out;
1675
1676 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1677 IEEE80211_IFACE_ITER_NORMAL,
1678 iwl_mvm_exit_d0i3_iterator,
1679 mvm);
1680 out:
1681 schedule_work(&mvm->d0i3_exit_work);
1682 return ret;
1683 }
1684
1685 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1686 {
1687 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1688
1689 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1690 return _iwl_mvm_exit_d0i3(mvm);
1691 }
1692
1693 #define IWL_MVM_COMMON_OPS \
1694 /* these could be differentiated */ \
1695 .async_cb = iwl_mvm_async_cb, \
1696 .queue_full = iwl_mvm_stop_sw_queue, \
1697 .queue_not_full = iwl_mvm_wake_sw_queue, \
1698 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1699 .free_skb = iwl_mvm_free_skb, \
1700 .nic_error = iwl_mvm_nic_error, \
1701 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1702 .nic_config = iwl_mvm_nic_config, \
1703 .enter_d0i3 = iwl_mvm_enter_d0i3, \
1704 .exit_d0i3 = iwl_mvm_exit_d0i3, \
1705 /* as we only register one, these MUST be common! */ \
1706 .start = iwl_op_mode_mvm_start, \
1707 .stop = iwl_op_mode_mvm_stop
1708
1709 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1710 IWL_MVM_COMMON_OPS,
1711 .rx = iwl_mvm_rx,
1712 };
1713
1714 static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1715 struct napi_struct *napi,
1716 struct iwl_rx_cmd_buffer *rxb,
1717 unsigned int queue)
1718 {
1719 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1720 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1721 u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
1722
1723 if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
1724 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
1725 else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,
1726 RX_QUEUES_NOTIFICATION)))
1727 iwl_mvm_rx_queue_notif(mvm, rxb, queue);
1728 else if (likely(cmd == WIDE_ID(LEGACY_GROUP, REPLY_RX_MPDU_CMD)))
1729 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
1730 }
1731
1732 static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1733 IWL_MVM_COMMON_OPS,
1734 .rx = iwl_mvm_rx_mq,
1735 .rx_rss = iwl_mvm_rx_mq_rss,
1736 };