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