1 /******************************************************************************
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.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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.
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.
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,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/module.h>
66 #include <linux/vmalloc.h>
67 #include <net/mac80211.h>
69 #include "iwl-notif-wait.h"
70 #include "iwl-trans.h"
71 #include "iwl-op-mode.h"
73 #include "iwl-debug.h"
75 #include "iwl-modparams.h"
77 #include "iwl-phy-db.h"
78 #include "iwl-eeprom-parse.h"
83 #include "fw-api-scan.h"
84 #include "time-event.h"
85 #include "iwl-fw-error-dump.h"
87 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
88 MODULE_DESCRIPTION(DRV_DESCRIPTION);
89 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
90 MODULE_LICENSE("GPL");
92 static const struct iwl_op_mode_ops iwl_mvm_ops;
94 struct iwl_mvm_mod_params iwlmvm_mod_params = {
95 .power_scheme = IWL_POWER_SCHEME_BPS,
96 /* rest of fields are 0 by default */
99 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
100 MODULE_PARM_DESC(init_dbg,
101 "set to true to debug an ASSERT in INIT fw (default: false");
102 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
103 MODULE_PARM_DESC(power_scheme,
104 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
107 * module init and exit functions
109 static int __init iwl_mvm_init(void)
113 ret = iwl_mvm_rate_control_register();
115 pr_err("Unable to register rate control algorithm: %d\n", ret);
119 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
122 pr_err("Unable to register MVM op_mode: %d\n", ret);
123 iwl_mvm_rate_control_unregister();
128 module_init(iwl_mvm_init);
130 static void __exit iwl_mvm_exit(void)
132 iwl_opmode_deregister("iwlmvm");
133 iwl_mvm_rate_control_unregister();
135 module_exit(iwl_mvm_exit);
137 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
139 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
140 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
142 u32 phy_config = iwl_mvm_get_phy_config(mvm);
144 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
145 FW_PHY_CFG_RADIO_TYPE_POS;
146 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
147 FW_PHY_CFG_RADIO_STEP_POS;
148 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
149 FW_PHY_CFG_RADIO_DASH_POS;
152 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
153 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
154 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
155 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
157 /* radio configuration */
158 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
159 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
160 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
162 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
163 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
166 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
167 * shouldn't be set to any non-zero value. The same is supposed to be
168 * true of the other HW, but unsetting them (such as the 7260) causes
169 * automatic tests to fail on seemingly unrelated errors. Need to
170 * further investigate this, but for now we'll separate cases.
172 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
173 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
175 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
176 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
177 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
178 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
179 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
180 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
181 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
182 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
185 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
186 radio_cfg_step, radio_cfg_dash);
189 * W/A : NIC is stuck in a reset state after Early PCIe power off
190 * (PCIe power is lost before PERST# is asserted), causing ME FW
191 * to lose ownership and not being able to obtain it back.
193 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
194 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
195 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
196 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
199 struct iwl_rx_handlers {
202 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
203 struct iwl_device_cmd *cmd);
206 #define RX_HANDLER(_cmd_id, _fn, _async) \
207 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
210 * Handlers for fw notifications
211 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
212 * This list should be in order of frequency for performance purposes.
214 * The handler can be SYNC - this means that it will be called in the Rx path
215 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
216 * only in this case!), it should be set as ASYNC. In that case, it will be
217 * called from a worker with mvm->mutex held.
219 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
220 RX_HANDLER(REPLY_RX_MPDU_CMD, iwl_mvm_rx_rx_mpdu, false),
221 RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false),
222 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
223 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
225 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
226 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true),
227 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
228 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
229 iwl_mvm_rx_ant_coupling_notif, true),
231 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
233 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
235 RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
236 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
237 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
238 iwl_mvm_rx_scan_offload_complete_notif, true),
239 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_offload_results,
241 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
244 RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
245 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
247 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
250 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
251 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
252 iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
253 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true),
255 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
257 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false),
261 #define CMD(x) [x] = #x
263 static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
266 CMD(INIT_COMPLETE_NOTIF),
267 CMD(PHY_CONTEXT_CMD),
271 CMD(MAC_CONTEXT_CMD),
273 CMD(TIME_EVENT_NOTIFICATION),
274 CMD(BINDING_CONTEXT_CMD),
276 CMD(NON_QOS_TX_COUNTER_CMD),
277 CMD(RADIO_VERSION_NOTIFICATION),
278 CMD(SCAN_REQUEST_CMD),
280 CMD(SCAN_START_NOTIFICATION),
281 CMD(SCAN_RESULTS_NOTIFICATION),
282 CMD(SCAN_COMPLETE_NOTIFICATION),
284 CMD(PHY_CONFIGURATION_CMD),
285 CMD(CALIB_RES_NOTIF_PHY_DB),
286 CMD(SET_CALIB_DEFAULT_CMD),
287 CMD(CALIBRATION_COMPLETE_NOTIFICATION),
292 CMD(SCAN_OFFLOAD_CONFIG_CMD),
293 CMD(MATCH_FOUND_NOTIFICATION),
294 CMD(SCAN_OFFLOAD_REQUEST_CMD),
295 CMD(SCAN_OFFLOAD_ABORT_CMD),
297 CMD(SCAN_OFFLOAD_COMPLETE),
298 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
299 CMD(SCAN_ITERATION_COMPLETE),
300 CMD(POWER_TABLE_CMD),
302 CMD(REPLY_RX_PHY_CMD),
303 CMD(REPLY_RX_MPDU_CMD),
304 CMD(BEACON_NOTIFICATION),
305 CMD(BEACON_TEMPLATE_CMD),
306 CMD(STATISTICS_NOTIFICATION),
307 CMD(EOSP_NOTIFICATION),
308 CMD(REDUCE_TX_POWER_CMD),
309 CMD(TX_ANT_CONFIGURATION_CMD),
312 CMD(PROT_OFFLOAD_CONFIG_CMD),
313 CMD(OFFLOADS_QUERY_CMD),
314 CMD(REMOTE_WAKE_CONFIG_CMD),
315 CMD(WOWLAN_PATTERNS),
316 CMD(WOWLAN_CONFIGURATION),
317 CMD(WOWLAN_TSC_RSC_PARAM),
318 CMD(WOWLAN_TKIP_PARAM),
319 CMD(WOWLAN_KEK_KCK_MATERIAL),
320 CMD(WOWLAN_GET_STATUSES),
321 CMD(WOWLAN_TX_POWER_PER_DB),
322 CMD(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
323 CMD(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
324 CMD(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
325 CMD(CARD_STATE_NOTIFICATION),
326 CMD(MISSED_BEACONS_NOTIFICATION),
327 CMD(BT_COEX_PRIO_TABLE),
328 CMD(BT_COEX_PROT_ENV),
329 CMD(BT_PROFILE_NOTIFICATION),
331 CMD(MCAST_FILTER_CMD),
332 CMD(BCAST_FILTER_CMD),
333 CMD(REPLY_SF_CFG_CMD),
334 CMD(REPLY_BEACON_FILTERING_CMD),
335 CMD(CMD_DTS_MEASUREMENT_TRIGGER),
336 CMD(DTS_MEASUREMENT_NOTIFICATION),
337 CMD(REPLY_THERMAL_MNG_BACKOFF),
338 CMD(MAC_PM_POWER_TABLE),
341 CMD(BT_COEX_UPDATE_SW_BOOST),
342 CMD(BT_COEX_UPDATE_CORUN_LUT),
343 CMD(BT_COEX_UPDATE_REDUCED_TXP),
344 CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
345 CMD(ANTENNA_COUPLING_NOTIFICATION),
349 CMD(SCAN_ABORT_UMAC),
350 CMD(SCAN_COMPLETE_UMAC),
351 CMD(TDLS_CHANNEL_SWITCH_CMD),
352 CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION),
353 CMD(TDLS_CONFIG_CMD),
357 /* this forward declaration can avoid to export the function */
358 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
359 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
361 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
363 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
368 while (pwr_tx_backoff->pwr) {
369 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
370 return pwr_tx_backoff->backoff;
378 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
380 static struct iwl_op_mode *
381 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
382 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
384 struct ieee80211_hw *hw;
385 struct iwl_op_mode *op_mode;
387 struct iwl_trans_config trans_cfg = {};
388 static const u8 no_reclaim_cmds[] = {
395 * We use IWL_MVM_STATION_COUNT to check the validity of the station
396 * index all over the driver - check that its value corresponds to the
399 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
401 /********************************
402 * 1. Allocating and configuring HW data
403 ********************************/
404 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
405 sizeof(struct iwl_mvm),
410 if (cfg->max_rx_agg_size)
411 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
413 if (cfg->max_tx_agg_size)
414 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
417 op_mode->ops = &iwl_mvm_ops;
419 mvm = IWL_OP_MODE_GET_MVM(op_mode);
420 mvm->dev = trans->dev;
426 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
429 mvm->first_agg_queue = 16;
430 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
431 if (mvm->cfg->base_params->num_of_queues == 16) {
433 mvm->first_agg_queue = 12;
435 mvm->sf_state = SF_UNINIT;
436 mvm->low_latency_agg_frame_limit = 6;
437 mvm->cur_ucode = IWL_UCODE_INIT;
439 mutex_init(&mvm->mutex);
440 mutex_init(&mvm->d0i3_suspend_mutex);
441 spin_lock_init(&mvm->async_handlers_lock);
442 INIT_LIST_HEAD(&mvm->time_event_list);
443 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
444 INIT_LIST_HEAD(&mvm->async_handlers_list);
445 spin_lock_init(&mvm->time_event_lock);
447 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
448 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
449 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
450 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
451 INIT_WORK(&mvm->fw_error_dump_wk, iwl_mvm_fw_error_dump_wk);
452 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
454 spin_lock_init(&mvm->d0i3_tx_lock);
455 spin_lock_init(&mvm->refs_lock);
456 skb_queue_head_init(&mvm->d0i3_tx);
457 init_waitqueue_head(&mvm->d0i3_exit_waitq);
459 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
462 * Populate the state variables that the transport layer needs
465 trans_cfg.op_mode = op_mode;
466 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
467 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
468 trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
470 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
471 trans_cfg.bc_table_dword = true;
473 if (!iwlwifi_mod_params.wd_disable)
474 trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
476 trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
478 trans_cfg.command_names = iwl_mvm_cmd_strings;
480 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
481 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
482 trans_cfg.scd_set_active = true;
484 snprintf(mvm->hw->wiphy->fw_version,
485 sizeof(mvm->hw->wiphy->fw_version),
486 "%s", fw->fw_version);
488 /* Configure transport layer */
489 iwl_trans_configure(mvm->trans, &trans_cfg);
491 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
492 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
493 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
494 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
495 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
496 sizeof(trans->dbg_conf_tlv));
498 /* set up notification wait support */
499 iwl_notification_wait_init(&mvm->notif_wait);
502 mvm->phy_db = iwl_phy_db_init(trans);
504 IWL_ERR(mvm, "Cannot init phy_db\n");
508 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
509 mvm->cfg->name, mvm->trans->hw_rev);
511 min_backoff = calc_min_backoff(trans, cfg);
512 iwl_mvm_tt_initialize(mvm, min_backoff);
513 /* set the nvm_file_name according to priority */
514 if (iwlwifi_mod_params.nvm_file)
515 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
517 mvm->nvm_file_name = mvm->cfg->default_nvm_file;
519 if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
520 "not allowing power-up and not having nvm_file\n"))
524 * Even if nvm exists in the nvm_file driver should read again the nvm
525 * from the nic because there might be entries that exist in the OTP
526 * and not in the file.
527 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
529 if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
530 err = iwl_nvm_init(mvm, false);
534 err = iwl_trans_start_hw(mvm->trans);
538 mutex_lock(&mvm->mutex);
539 err = iwl_run_init_mvm_ucode(mvm, true);
540 if (!err || !iwlmvm_mod_params.init_dbg)
541 iwl_trans_stop_device(trans);
542 mutex_unlock(&mvm->mutex);
543 /* returns 0 if successful, 1 if success but in rfkill */
544 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
545 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
550 scan_size = iwl_mvm_scan_size(mvm);
552 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
556 err = iwl_mvm_mac_setup_register(mvm);
560 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
564 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
566 /* rpm starts with a taken ref. only set the appropriate bit here. */
567 mvm->refs[IWL_MVM_REF_UCODE_DOWN] = 1;
572 ieee80211_unregister_hw(mvm->hw);
573 iwl_mvm_leds_exit(mvm);
575 iwl_phy_db_free(mvm->phy_db);
576 kfree(mvm->scan_cmd);
577 if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
578 iwl_trans_op_mode_leave(trans);
579 ieee80211_free_hw(mvm->hw);
583 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
585 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
588 iwl_mvm_leds_exit(mvm);
590 iwl_mvm_tt_exit(mvm);
592 ieee80211_unregister_hw(mvm->hw);
594 kfree(mvm->scan_cmd);
595 kfree(mvm->mcast_filter_cmd);
596 mvm->mcast_filter_cmd = NULL;
598 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
599 kfree(mvm->d3_resume_sram);
600 if (mvm->nd_config) {
601 kfree(mvm->nd_config->match_sets);
602 kfree(mvm->nd_config);
603 mvm->nd_config = NULL;
607 iwl_trans_op_mode_leave(mvm->trans);
609 iwl_phy_db_free(mvm->phy_db);
612 iwl_free_nvm_data(mvm->nvm_data);
613 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
614 kfree(mvm->nvm_sections[i].data);
616 ieee80211_free_hw(mvm->hw);
619 struct iwl_async_handler_entry {
620 struct list_head list;
621 struct iwl_rx_cmd_buffer rxb;
622 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
623 struct iwl_device_cmd *cmd);
626 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
628 struct iwl_async_handler_entry *entry, *tmp;
630 spin_lock_bh(&mvm->async_handlers_lock);
631 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
632 iwl_free_rxb(&entry->rxb);
633 list_del(&entry->list);
636 spin_unlock_bh(&mvm->async_handlers_lock);
639 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
641 struct iwl_mvm *mvm =
642 container_of(wk, struct iwl_mvm, async_handlers_wk);
643 struct iwl_async_handler_entry *entry, *tmp;
644 struct list_head local_list;
646 INIT_LIST_HEAD(&local_list);
648 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
649 mutex_lock(&mvm->mutex);
652 * Sync with Rx path with a lock. Remove all the entries from this list,
653 * add them to a local one (lock free), and then handle them.
655 spin_lock_bh(&mvm->async_handlers_lock);
656 list_splice_init(&mvm->async_handlers_list, &local_list);
657 spin_unlock_bh(&mvm->async_handlers_lock);
659 list_for_each_entry_safe(entry, tmp, &local_list, list) {
660 if (entry->fn(mvm, &entry->rxb, NULL))
662 "returned value from ASYNC handlers are ignored\n");
663 iwl_free_rxb(&entry->rxb);
664 list_del(&entry->list);
667 mutex_unlock(&mvm->mutex);
670 static int iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode,
671 struct iwl_rx_cmd_buffer *rxb,
672 struct iwl_device_cmd *cmd)
674 struct iwl_rx_packet *pkt = rxb_addr(rxb);
675 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
679 * Do the notification wait before RX handlers so
680 * even if the RX handler consumes the RXB we have
681 * access to it in the notification wait entry.
683 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
685 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
686 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
687 struct iwl_async_handler_entry *entry;
689 if (rx_h->cmd_id != pkt->hdr.cmd)
693 return rx_h->fn(mvm, rxb, cmd);
695 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
696 /* we can't do much... */
700 entry->rxb._page = rxb_steal_page(rxb);
701 entry->rxb._offset = rxb->_offset;
702 entry->rxb._rx_page_order = rxb->_rx_page_order;
703 entry->fn = rx_h->fn;
704 spin_lock(&mvm->async_handlers_lock);
705 list_add_tail(&entry->list, &mvm->async_handlers_list);
706 spin_unlock(&mvm->async_handlers_lock);
707 schedule_work(&mvm->async_handlers_wk);
714 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
716 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
717 int mq = mvm->queue_to_mac80211[queue];
719 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
722 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[mq]) > 1) {
723 IWL_DEBUG_TX_QUEUES(mvm,
724 "queue %d (mac80211 %d) already stopped\n",
729 ieee80211_stop_queue(mvm->hw, mq);
732 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
734 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
735 int mq = mvm->queue_to_mac80211[queue];
737 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
740 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[mq]) > 0) {
741 IWL_DEBUG_TX_QUEUES(mvm,
742 "queue %d (mac80211 %d) still stopped\n",
747 ieee80211_wake_queue(mvm->hw, mq);
750 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
753 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
755 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
757 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
760 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
762 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
763 bool calibrating = ACCESS_ONCE(mvm->calibrating);
766 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
768 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
770 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
772 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
774 iwl_abort_notification_waits(&mvm->notif_wait);
777 * Stop the device if we run OPERATIONAL firmware or if we are in the
778 * middle of the calibrations.
780 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
783 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
785 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
786 struct ieee80211_tx_info *info;
788 info = IEEE80211_SKB_CB(skb);
789 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
790 ieee80211_free_txskb(mvm->hw, skb);
793 struct iwl_mvm_reprobe {
795 struct work_struct work;
798 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
800 struct iwl_mvm_reprobe *reprobe;
802 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
803 if (device_reprobe(reprobe->dev))
804 dev_err(reprobe->dev, "reprobe failed!\n");
806 module_put(THIS_MODULE);
809 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
811 struct iwl_mvm *mvm =
812 container_of(work, struct iwl_mvm, fw_error_dump_wk);
814 mutex_lock(&mvm->mutex);
815 iwl_mvm_fw_error_dump(mvm);
816 mutex_unlock(&mvm->mutex);
819 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
821 iwl_abort_notification_waits(&mvm->notif_wait);
824 * This is a bit racy, but worst case we tell mac80211 about
825 * a stopped/aborted scan when that was already done which
826 * is not a problem. It is necessary to abort any os scan
827 * here because mac80211 requires having the scan cleared
829 * We'll reset the scan_status to NONE in restart cleanup in
830 * the next start() call from mac80211. If restart isn't called
831 * (no fw restart) scan status will stay busy.
833 switch (mvm->scan_status) {
834 case IWL_MVM_SCAN_NONE:
836 case IWL_MVM_SCAN_OS:
837 ieee80211_scan_completed(mvm->hw, true);
839 case IWL_MVM_SCAN_SCHED:
840 /* Sched scan will be restarted by mac80211 in restart_hw. */
841 if (!mvm->restart_fw)
842 ieee80211_sched_scan_stopped(mvm->hw);
847 * If we're restarting already, don't cycle restarts.
848 * If INIT fw asserted, it will likely fail again.
849 * If WoWLAN fw asserted, don't restart either, mac80211
850 * can't recover this since we're already half suspended.
852 if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
853 struct iwl_mvm_reprobe *reprobe;
856 "Firmware error during reconfiguration - reprobe!\n");
859 * get a module reference to avoid doing this while unloading
860 * anyway and to avoid scheduling a work with code that's
863 if (!try_module_get(THIS_MODULE)) {
864 IWL_ERR(mvm, "Module is being unloaded - abort\n");
868 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
870 module_put(THIS_MODULE);
873 reprobe->dev = mvm->trans->dev;
874 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
875 schedule_work(&reprobe->work);
876 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
877 (!fw_error || mvm->restart_fw)) {
878 /* don't let the transport/FW power down */
879 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
881 if (fw_error && mvm->restart_fw > 0)
883 ieee80211_restart_hw(mvm->hw);
884 } else if (fw_error) {
885 schedule_work(&mvm->fw_error_dump_wk);
889 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
891 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
893 iwl_mvm_dump_nic_error_log(mvm);
895 iwl_mvm_nic_restart(mvm, true);
898 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
900 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
903 iwl_mvm_nic_restart(mvm, true);
906 struct iwl_d0i3_iter_data {
911 bool disable_offloading;
914 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
915 struct ieee80211_vif *vif,
916 struct iwl_d0i3_iter_data *iter_data)
918 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
919 struct ieee80211_sta *ap_sta;
920 struct iwl_mvm_sta *mvmsta;
921 u32 available_tids = 0;
924 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
925 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
928 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
929 if (IS_ERR_OR_NULL(ap_sta))
932 mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
933 spin_lock_bh(&mvmsta->lock);
934 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
935 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
938 * in case of pending tx packets, don't use this tid
939 * for offloading in order to prevent reuse of the same
942 if (iwl_mvm_tid_queued(tid_data))
945 if (tid_data->state != IWL_AGG_OFF)
948 available_tids |= BIT(tid);
950 spin_unlock_bh(&mvmsta->lock);
953 * disallow protocol offloading if we have no available tid
954 * (with no pending frames and no active aggregation,
955 * as we don't handle "holes" properly - the scheduler needs the
956 * frame's seq number and TFD index to match)
961 /* for simplicity, just use the first available tid */
962 iter_data->offloading_tid = ffs(available_tids) - 1;
966 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
967 struct ieee80211_vif *vif)
969 struct iwl_d0i3_iter_data *data = _data;
970 struct iwl_mvm *mvm = data->mvm;
971 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
972 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
974 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
975 if (vif->type != NL80211_IFTYPE_STATION ||
976 !vif->bss_conf.assoc)
980 * in case of pending tx packets or active aggregations,
981 * avoid offloading features in order to prevent reuse of
982 * the same qos seq counters.
984 if (iwl_mvm_disallow_offloading(mvm, vif, data))
985 data->disable_offloading = true;
987 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
988 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags);
991 * on init/association, mvm already configures POWER_TABLE_CMD
992 * and REPLY_MCAST_FILTER_CMD, so currently don't
993 * reconfigure them (we might want to use different
994 * params later on, though).
996 data->ap_sta_id = mvmvif->ap_sta_id;
1000 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1001 struct iwl_wowlan_config_cmd *cmd,
1002 struct iwl_d0i3_iter_data *iter_data)
1004 struct ieee80211_sta *ap_sta;
1005 struct iwl_mvm_sta *mvm_ap_sta;
1007 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1012 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1013 if (IS_ERR_OR_NULL(ap_sta))
1016 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1017 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1018 cmd->offloading_tid = iter_data->offloading_tid;
1021 * The d0i3 uCode takes care of the nonqos counters,
1022 * so configure only the qos seq ones.
1024 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1028 static int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1030 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1031 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1033 struct iwl_d0i3_iter_data d0i3_iter_data = {
1036 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1037 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1038 IWL_WOWLAN_WAKEUP_BEACON_MISS |
1039 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
1040 IWL_WOWLAN_WAKEUP_BCN_FILTERING),
1042 struct iwl_d3_manager_config d3_cfg_cmd = {
1043 .min_sleep_time = cpu_to_le32(1000),
1046 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1048 /* make sure we have no running tx while configuring the qos */
1049 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1053 * iwl_mvm_ref_sync takes a reference before checking the flag.
1054 * so by checking there is no held reference we prevent a state
1055 * in which iwl_mvm_ref_sync continues successfully while we
1056 * configure the firmware to enter d0i3
1058 if (iwl_mvm_ref_taken(mvm)) {
1059 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1060 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1061 wake_up(&mvm->d0i3_exit_waitq);
1065 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1066 IEEE80211_IFACE_ITER_NORMAL,
1067 iwl_mvm_enter_d0i3_iterator,
1069 if (d0i3_iter_data.vif_count == 1) {
1070 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1071 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1073 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1074 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1075 mvm->d0i3_offloading = false;
1078 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, &d0i3_iter_data);
1079 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1080 sizeof(wowlan_config_cmd),
1081 &wowlan_config_cmd);
1085 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1086 flags | CMD_MAKE_TRANS_IDLE,
1087 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1090 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1091 struct ieee80211_vif *vif)
1093 struct iwl_mvm *mvm = _data;
1094 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1096 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1097 if (vif->type != NL80211_IFTYPE_STATION ||
1098 !vif->bss_conf.assoc)
1101 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1104 static void iwl_mvm_d0i3_disconnect_iter(void *data, u8 *mac,
1105 struct ieee80211_vif *vif)
1107 struct iwl_mvm *mvm = data;
1108 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1110 if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc &&
1111 mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1112 ieee80211_connection_loss(vif);
1115 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1117 struct ieee80211_sta *sta = NULL;
1118 struct iwl_mvm_sta *mvm_ap_sta;
1120 bool wake_queues = false;
1122 lockdep_assert_held(&mvm->mutex);
1124 spin_lock_bh(&mvm->d0i3_tx_lock);
1126 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1129 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1131 /* get the sta in order to update seq numbers and re-enqueue skbs */
1132 sta = rcu_dereference_protected(
1133 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1134 lockdep_is_held(&mvm->mutex));
1136 if (IS_ERR_OR_NULL(sta)) {
1141 if (mvm->d0i3_offloading && qos_seq) {
1142 /* update qos seq numbers if offloading was enabled */
1143 mvm_ap_sta = (struct iwl_mvm_sta *)sta->drv_priv;
1144 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1145 u16 seq = le16_to_cpu(qos_seq[i]);
1146 /* firmware stores last-used one, we store next one */
1148 mvm_ap_sta->tid_data[i].seq_number = seq;
1152 /* re-enqueue (or drop) all packets */
1153 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1154 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1156 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1157 ieee80211_free_txskb(mvm->hw, skb);
1159 /* if the skb_queue is not empty, we need to wake queues */
1162 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1163 wake_up(&mvm->d0i3_exit_waitq);
1164 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1166 ieee80211_wake_queues(mvm->hw);
1168 spin_unlock_bh(&mvm->d0i3_tx_lock);
1171 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1173 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1174 struct iwl_host_cmd get_status_cmd = {
1175 .id = WOWLAN_GET_STATUSES,
1176 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1178 struct iwl_wowlan_status *status;
1180 u32 disconnection_reasons, wakeup_reasons;
1181 __le16 *qos_seq = NULL;
1183 mutex_lock(&mvm->mutex);
1184 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1188 if (!get_status_cmd.resp_pkt)
1191 status = (void *)get_status_cmd.resp_pkt->data;
1192 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1193 qos_seq = status->qos_seq_ctr;
1195 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1197 disconnection_reasons =
1198 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1199 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1200 if (wakeup_reasons & disconnection_reasons)
1201 ieee80211_iterate_active_interfaces(
1202 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1203 iwl_mvm_d0i3_disconnect_iter, mvm);
1205 iwl_free_resp(&get_status_cmd);
1207 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1208 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1209 mutex_unlock(&mvm->mutex);
1212 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1214 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1218 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1220 mutex_lock(&mvm->d0i3_suspend_mutex);
1221 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1222 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1223 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1224 mutex_unlock(&mvm->d0i3_suspend_mutex);
1227 mutex_unlock(&mvm->d0i3_suspend_mutex);
1229 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1233 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1234 IEEE80211_IFACE_ITER_NORMAL,
1235 iwl_mvm_exit_d0i3_iterator,
1238 schedule_work(&mvm->d0i3_exit_work);
1242 static int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1244 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1246 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1247 return _iwl_mvm_exit_d0i3(mvm);
1250 static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode,
1251 struct napi_struct *napi,
1252 struct net_device *napi_dev,
1253 int (*poll)(struct napi_struct *, int),
1256 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1258 ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight);
1261 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1262 .start = iwl_op_mode_mvm_start,
1263 .stop = iwl_op_mode_mvm_stop,
1264 .rx = iwl_mvm_rx_dispatch,
1265 .queue_full = iwl_mvm_stop_sw_queue,
1266 .queue_not_full = iwl_mvm_wake_sw_queue,
1267 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,
1268 .free_skb = iwl_mvm_free_skb,
1269 .nic_error = iwl_mvm_nic_error,
1270 .cmd_queue_full = iwl_mvm_cmd_queue_full,
1271 .nic_config = iwl_mvm_nic_config,
1272 .enter_d0i3 = iwl_mvm_enter_d0i3,
1273 .exit_d0i3 = iwl_mvm_exit_d0i3,
1274 .napi_add = iwl_mvm_napi_add,