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"
88 * module name, copyright, version, etc.
90 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
92 #define DRV_VERSION IWLWIFI_VERSION
94 MODULE_DESCRIPTION(DRV_DESCRIPTION);
95 MODULE_VERSION(DRV_VERSION);
96 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
97 MODULE_LICENSE("GPL");
99 static const struct iwl_op_mode_ops iwl_mvm_ops;
101 struct iwl_mvm_mod_params iwlmvm_mod_params = {
102 .power_scheme = IWL_POWER_SCHEME_BPS,
103 /* rest of fields are 0 by default */
106 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
107 MODULE_PARM_DESC(init_dbg,
108 "set to true to debug an ASSERT in INIT fw (default: false");
109 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
110 MODULE_PARM_DESC(power_scheme,
111 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
114 * module init and exit functions
116 static int __init iwl_mvm_init(void)
120 ret = iwl_mvm_rate_control_register();
122 pr_err("Unable to register rate control algorithm: %d\n", ret);
126 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
129 pr_err("Unable to register MVM op_mode: %d\n", ret);
130 iwl_mvm_rate_control_unregister();
135 module_init(iwl_mvm_init);
137 static void __exit iwl_mvm_exit(void)
139 iwl_opmode_deregister("iwlmvm");
140 iwl_mvm_rate_control_unregister();
142 module_exit(iwl_mvm_exit);
144 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
146 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
147 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
150 radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >>
151 FW_PHY_CFG_RADIO_TYPE_POS;
152 radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >>
153 FW_PHY_CFG_RADIO_STEP_POS;
154 radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >>
155 FW_PHY_CFG_RADIO_DASH_POS;
158 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
159 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
160 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
161 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
163 /* radio configuration */
164 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
165 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
166 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
168 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
169 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
172 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
173 * shouldn't be set to any non-zero value. The same is supposed to be
174 * true of the other HW, but unsetting them (such as the 7260) causes
175 * automatic tests to fail on seemingly unrelated errors. Need to
176 * further investigate this, but for now we'll separate cases.
178 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
179 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
181 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
182 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
183 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
184 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
185 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
186 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
187 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
188 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
191 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
192 radio_cfg_step, radio_cfg_dash);
195 * W/A : NIC is stuck in a reset state after Early PCIe power off
196 * (PCIe power is lost before PERST# is asserted), causing ME FW
197 * to lose ownership and not being able to obtain it back.
199 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
200 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
201 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
202 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
205 struct iwl_rx_handlers {
208 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
209 struct iwl_device_cmd *cmd);
212 #define RX_HANDLER(_cmd_id, _fn, _async) \
213 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
216 * Handlers for fw notifications
217 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
218 * This list should be in order of frequency for performance purposes.
220 * The handler can be SYNC - this means that it will be called in the Rx path
221 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
222 * only in this case!), it should be set as ASYNC. In that case, it will be
223 * called from a worker with mvm->mutex held.
225 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
226 RX_HANDLER(REPLY_RX_MPDU_CMD, iwl_mvm_rx_rx_mpdu, false),
227 RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false),
228 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
229 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
231 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
232 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true),
233 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
234 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
235 iwl_mvm_rx_ant_coupling_notif, true),
237 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
239 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
241 RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
242 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
243 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
244 iwl_mvm_rx_scan_offload_complete_notif, true),
245 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_offload_results,
247 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
250 RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
251 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
253 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
256 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
257 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
258 iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
259 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true),
261 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
263 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false),
267 #define CMD(x) [x] = #x
269 static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
272 CMD(INIT_COMPLETE_NOTIF),
273 CMD(PHY_CONTEXT_CMD),
277 CMD(MAC_CONTEXT_CMD),
279 CMD(TIME_EVENT_NOTIFICATION),
280 CMD(BINDING_CONTEXT_CMD),
282 CMD(NON_QOS_TX_COUNTER_CMD),
283 CMD(RADIO_VERSION_NOTIFICATION),
284 CMD(SCAN_REQUEST_CMD),
286 CMD(SCAN_START_NOTIFICATION),
287 CMD(SCAN_RESULTS_NOTIFICATION),
288 CMD(SCAN_COMPLETE_NOTIFICATION),
290 CMD(PHY_CONFIGURATION_CMD),
291 CMD(CALIB_RES_NOTIF_PHY_DB),
292 CMD(SET_CALIB_DEFAULT_CMD),
293 CMD(CALIBRATION_COMPLETE_NOTIFICATION),
298 CMD(SCAN_OFFLOAD_CONFIG_CMD),
299 CMD(MATCH_FOUND_NOTIFICATION),
300 CMD(SCAN_OFFLOAD_REQUEST_CMD),
301 CMD(SCAN_OFFLOAD_ABORT_CMD),
303 CMD(SCAN_OFFLOAD_COMPLETE),
304 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
305 CMD(SCAN_ITERATION_COMPLETE),
306 CMD(POWER_TABLE_CMD),
308 CMD(REPLY_RX_PHY_CMD),
309 CMD(REPLY_RX_MPDU_CMD),
310 CMD(BEACON_NOTIFICATION),
311 CMD(BEACON_TEMPLATE_CMD),
312 CMD(STATISTICS_NOTIFICATION),
313 CMD(EOSP_NOTIFICATION),
314 CMD(REDUCE_TX_POWER_CMD),
315 CMD(TX_ANT_CONFIGURATION_CMD),
318 CMD(PROT_OFFLOAD_CONFIG_CMD),
319 CMD(OFFLOADS_QUERY_CMD),
320 CMD(REMOTE_WAKE_CONFIG_CMD),
321 CMD(WOWLAN_PATTERNS),
322 CMD(WOWLAN_CONFIGURATION),
323 CMD(WOWLAN_TSC_RSC_PARAM),
324 CMD(WOWLAN_TKIP_PARAM),
325 CMD(WOWLAN_KEK_KCK_MATERIAL),
326 CMD(WOWLAN_GET_STATUSES),
327 CMD(WOWLAN_TX_POWER_PER_DB),
328 CMD(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
329 CMD(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
330 CMD(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
331 CMD(CARD_STATE_NOTIFICATION),
332 CMD(MISSED_BEACONS_NOTIFICATION),
333 CMD(BT_COEX_PRIO_TABLE),
334 CMD(BT_COEX_PROT_ENV),
335 CMD(BT_PROFILE_NOTIFICATION),
337 CMD(MCAST_FILTER_CMD),
338 CMD(BCAST_FILTER_CMD),
339 CMD(REPLY_SF_CFG_CMD),
340 CMD(REPLY_BEACON_FILTERING_CMD),
341 CMD(CMD_DTS_MEASUREMENT_TRIGGER),
342 CMD(DTS_MEASUREMENT_NOTIFICATION),
343 CMD(REPLY_THERMAL_MNG_BACKOFF),
344 CMD(MAC_PM_POWER_TABLE),
347 CMD(BT_COEX_UPDATE_SW_BOOST),
348 CMD(BT_COEX_UPDATE_CORUN_LUT),
349 CMD(BT_COEX_UPDATE_REDUCED_TXP),
350 CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
351 CMD(ANTENNA_COUPLING_NOTIFICATION),
355 CMD(SCAN_ABORT_UMAC),
356 CMD(SCAN_COMPLETE_UMAC),
357 CMD(TDLS_CHANNEL_SWITCH_CMD),
358 CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION),
359 CMD(TDLS_CONFIG_CMD),
363 /* this forward declaration can avoid to export the function */
364 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
365 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
367 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
369 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
374 while (pwr_tx_backoff->pwr) {
375 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
376 return pwr_tx_backoff->backoff;
384 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
386 static struct iwl_op_mode *
387 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
388 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
390 struct ieee80211_hw *hw;
391 struct iwl_op_mode *op_mode;
393 struct iwl_trans_config trans_cfg = {};
394 static const u8 no_reclaim_cmds[] = {
401 * We use IWL_MVM_STATION_COUNT to check the validity of the station
402 * index all over the driver - check that its value corresponds to the
405 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
407 /********************************
408 * 1. Allocating and configuring HW data
409 ********************************/
410 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
411 sizeof(struct iwl_mvm),
416 if (cfg->max_rx_agg_size)
417 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
419 if (cfg->max_tx_agg_size)
420 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
423 op_mode->ops = &iwl_mvm_ops;
425 mvm = IWL_OP_MODE_GET_MVM(op_mode);
426 mvm->dev = trans->dev;
432 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
435 mvm->first_agg_queue = 16;
436 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
437 if (mvm->cfg->base_params->num_of_queues == 16) {
439 mvm->first_agg_queue = 12;
441 mvm->sf_state = SF_UNINIT;
442 mvm->low_latency_agg_frame_limit = 6;
443 mvm->cur_ucode = IWL_UCODE_INIT;
445 mutex_init(&mvm->mutex);
446 mutex_init(&mvm->d0i3_suspend_mutex);
447 spin_lock_init(&mvm->async_handlers_lock);
448 INIT_LIST_HEAD(&mvm->time_event_list);
449 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
450 INIT_LIST_HEAD(&mvm->async_handlers_list);
451 spin_lock_init(&mvm->time_event_lock);
453 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
454 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
455 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
456 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
457 INIT_WORK(&mvm->fw_error_dump_wk, iwl_mvm_fw_error_dump_wk);
458 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
460 spin_lock_init(&mvm->d0i3_tx_lock);
461 spin_lock_init(&mvm->refs_lock);
462 skb_queue_head_init(&mvm->d0i3_tx);
463 init_waitqueue_head(&mvm->d0i3_exit_waitq);
465 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
468 * Populate the state variables that the transport layer needs
471 trans_cfg.op_mode = op_mode;
472 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
473 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
474 trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
476 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
477 trans_cfg.bc_table_dword = true;
479 if (!iwlwifi_mod_params.wd_disable)
480 trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
482 trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
484 trans_cfg.command_names = iwl_mvm_cmd_strings;
486 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
487 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
488 trans_cfg.scd_set_active = true;
490 snprintf(mvm->hw->wiphy->fw_version,
491 sizeof(mvm->hw->wiphy->fw_version),
492 "%s", fw->fw_version);
494 /* Configure transport layer */
495 iwl_trans_configure(mvm->trans, &trans_cfg);
497 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
498 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
499 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
500 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
501 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
502 sizeof(trans->dbg_conf_tlv));
504 /* set up notification wait support */
505 iwl_notification_wait_init(&mvm->notif_wait);
508 mvm->phy_db = iwl_phy_db_init(trans);
510 IWL_ERR(mvm, "Cannot init phy_db\n");
514 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
515 mvm->cfg->name, mvm->trans->hw_rev);
517 min_backoff = calc_min_backoff(trans, cfg);
518 iwl_mvm_tt_initialize(mvm, min_backoff);
519 /* set the nvm_file_name according to priority */
520 if (iwlwifi_mod_params.nvm_file)
521 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
523 mvm->nvm_file_name = mvm->cfg->default_nvm_file;
525 if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
526 "not allowing power-up and not having nvm_file\n"))
530 * Even if nvm exists in the nvm_file driver should read again the nvm
531 * from the nic because there might be entries that exist in the OTP
532 * and not in the file.
533 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
535 if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
536 err = iwl_nvm_init(mvm, false);
540 err = iwl_trans_start_hw(mvm->trans);
544 mutex_lock(&mvm->mutex);
545 err = iwl_run_init_mvm_ucode(mvm, true);
546 if (!err || !iwlmvm_mod_params.init_dbg)
547 iwl_trans_stop_device(trans);
548 mutex_unlock(&mvm->mutex);
549 /* returns 0 if successful, 1 if success but in rfkill */
550 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
551 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
556 scan_size = iwl_mvm_scan_size(mvm);
558 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
562 err = iwl_mvm_mac_setup_register(mvm);
566 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
570 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
572 /* rpm starts with a taken ref. only set the appropriate bit here. */
573 mvm->refs[IWL_MVM_REF_UCODE_DOWN] = 1;
578 ieee80211_unregister_hw(mvm->hw);
579 iwl_mvm_leds_exit(mvm);
581 iwl_phy_db_free(mvm->phy_db);
582 kfree(mvm->scan_cmd);
583 if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
584 iwl_trans_op_mode_leave(trans);
585 ieee80211_free_hw(mvm->hw);
589 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
591 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
594 iwl_mvm_leds_exit(mvm);
596 iwl_mvm_tt_exit(mvm);
598 ieee80211_unregister_hw(mvm->hw);
600 kfree(mvm->scan_cmd);
601 kfree(mvm->mcast_filter_cmd);
602 mvm->mcast_filter_cmd = NULL;
604 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
605 kfree(mvm->d3_resume_sram);
606 if (mvm->nd_config) {
607 kfree(mvm->nd_config->match_sets);
608 kfree(mvm->nd_config);
609 mvm->nd_config = NULL;
613 iwl_trans_op_mode_leave(mvm->trans);
615 iwl_phy_db_free(mvm->phy_db);
618 iwl_free_nvm_data(mvm->nvm_data);
619 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
620 kfree(mvm->nvm_sections[i].data);
622 ieee80211_free_hw(mvm->hw);
625 struct iwl_async_handler_entry {
626 struct list_head list;
627 struct iwl_rx_cmd_buffer rxb;
628 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
629 struct iwl_device_cmd *cmd);
632 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
634 struct iwl_async_handler_entry *entry, *tmp;
636 spin_lock_bh(&mvm->async_handlers_lock);
637 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
638 iwl_free_rxb(&entry->rxb);
639 list_del(&entry->list);
642 spin_unlock_bh(&mvm->async_handlers_lock);
645 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
647 struct iwl_mvm *mvm =
648 container_of(wk, struct iwl_mvm, async_handlers_wk);
649 struct iwl_async_handler_entry *entry, *tmp;
650 struct list_head local_list;
652 INIT_LIST_HEAD(&local_list);
654 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
655 mutex_lock(&mvm->mutex);
658 * Sync with Rx path with a lock. Remove all the entries from this list,
659 * add them to a local one (lock free), and then handle them.
661 spin_lock_bh(&mvm->async_handlers_lock);
662 list_splice_init(&mvm->async_handlers_list, &local_list);
663 spin_unlock_bh(&mvm->async_handlers_lock);
665 list_for_each_entry_safe(entry, tmp, &local_list, list) {
666 if (entry->fn(mvm, &entry->rxb, NULL))
668 "returned value from ASYNC handlers are ignored\n");
669 iwl_free_rxb(&entry->rxb);
670 list_del(&entry->list);
673 mutex_unlock(&mvm->mutex);
676 static int iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode,
677 struct iwl_rx_cmd_buffer *rxb,
678 struct iwl_device_cmd *cmd)
680 struct iwl_rx_packet *pkt = rxb_addr(rxb);
681 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
685 * Do the notification wait before RX handlers so
686 * even if the RX handler consumes the RXB we have
687 * access to it in the notification wait entry.
689 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
691 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
692 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
693 struct iwl_async_handler_entry *entry;
695 if (rx_h->cmd_id != pkt->hdr.cmd)
699 return rx_h->fn(mvm, rxb, cmd);
701 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
702 /* we can't do much... */
706 entry->rxb._page = rxb_steal_page(rxb);
707 entry->rxb._offset = rxb->_offset;
708 entry->rxb._rx_page_order = rxb->_rx_page_order;
709 entry->fn = rx_h->fn;
710 spin_lock(&mvm->async_handlers_lock);
711 list_add_tail(&entry->list, &mvm->async_handlers_list);
712 spin_unlock(&mvm->async_handlers_lock);
713 schedule_work(&mvm->async_handlers_wk);
720 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
722 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
723 int mq = mvm->queue_to_mac80211[queue];
725 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
728 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[mq]) > 1) {
729 IWL_DEBUG_TX_QUEUES(mvm,
730 "queue %d (mac80211 %d) already stopped\n",
735 ieee80211_stop_queue(mvm->hw, mq);
738 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
740 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
741 int mq = mvm->queue_to_mac80211[queue];
743 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
746 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[mq]) > 0) {
747 IWL_DEBUG_TX_QUEUES(mvm,
748 "queue %d (mac80211 %d) still stopped\n",
753 ieee80211_wake_queue(mvm->hw, mq);
756 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
759 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
761 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
763 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
766 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
768 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
769 bool calibrating = ACCESS_ONCE(mvm->calibrating);
772 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
774 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
776 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
778 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
780 iwl_abort_notification_waits(&mvm->notif_wait);
783 * Stop the device if we run OPERATIONAL firmware or if we are in the
784 * middle of the calibrations.
786 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
789 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
791 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
792 struct ieee80211_tx_info *info;
794 info = IEEE80211_SKB_CB(skb);
795 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
796 ieee80211_free_txskb(mvm->hw, skb);
799 struct iwl_mvm_reprobe {
801 struct work_struct work;
804 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
806 struct iwl_mvm_reprobe *reprobe;
808 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
809 if (device_reprobe(reprobe->dev))
810 dev_err(reprobe->dev, "reprobe failed!\n");
812 module_put(THIS_MODULE);
815 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
817 struct iwl_mvm *mvm =
818 container_of(work, struct iwl_mvm, fw_error_dump_wk);
820 mutex_lock(&mvm->mutex);
821 iwl_mvm_fw_error_dump(mvm);
822 mutex_unlock(&mvm->mutex);
825 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
827 iwl_abort_notification_waits(&mvm->notif_wait);
830 * This is a bit racy, but worst case we tell mac80211 about
831 * a stopped/aborted scan when that was already done which
832 * is not a problem. It is necessary to abort any os scan
833 * here because mac80211 requires having the scan cleared
835 * We'll reset the scan_status to NONE in restart cleanup in
836 * the next start() call from mac80211. If restart isn't called
837 * (no fw restart) scan status will stay busy.
839 switch (mvm->scan_status) {
840 case IWL_MVM_SCAN_NONE:
842 case IWL_MVM_SCAN_OS:
843 ieee80211_scan_completed(mvm->hw, true);
845 case IWL_MVM_SCAN_SCHED:
846 /* Sched scan will be restarted by mac80211 in restart_hw. */
847 if (!mvm->restart_fw)
848 ieee80211_sched_scan_stopped(mvm->hw);
853 * If we're restarting already, don't cycle restarts.
854 * If INIT fw asserted, it will likely fail again.
855 * If WoWLAN fw asserted, don't restart either, mac80211
856 * can't recover this since we're already half suspended.
858 if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
859 struct iwl_mvm_reprobe *reprobe;
862 "Firmware error during reconfiguration - reprobe!\n");
865 * get a module reference to avoid doing this while unloading
866 * anyway and to avoid scheduling a work with code that's
869 if (!try_module_get(THIS_MODULE)) {
870 IWL_ERR(mvm, "Module is being unloaded - abort\n");
874 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
876 module_put(THIS_MODULE);
879 reprobe->dev = mvm->trans->dev;
880 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
881 schedule_work(&reprobe->work);
882 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
883 (!fw_error || mvm->restart_fw)) {
884 /* don't let the transport/FW power down */
885 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
887 if (fw_error && mvm->restart_fw > 0)
889 ieee80211_restart_hw(mvm->hw);
890 } else if (fw_error) {
891 schedule_work(&mvm->fw_error_dump_wk);
895 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
897 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
899 iwl_mvm_dump_nic_error_log(mvm);
901 iwl_mvm_nic_restart(mvm, true);
904 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
906 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
909 iwl_mvm_nic_restart(mvm, true);
912 struct iwl_d0i3_iter_data {
917 bool disable_offloading;
920 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
921 struct ieee80211_vif *vif,
922 struct iwl_d0i3_iter_data *iter_data)
924 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
925 struct ieee80211_sta *ap_sta;
926 struct iwl_mvm_sta *mvmsta;
927 u32 available_tids = 0;
930 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
931 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
934 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
935 if (IS_ERR_OR_NULL(ap_sta))
938 mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
939 spin_lock_bh(&mvmsta->lock);
940 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
941 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
944 * in case of pending tx packets, don't use this tid
945 * for offloading in order to prevent reuse of the same
948 if (iwl_mvm_tid_queued(tid_data))
951 if (tid_data->state != IWL_AGG_OFF)
954 available_tids |= BIT(tid);
956 spin_unlock_bh(&mvmsta->lock);
959 * disallow protocol offloading if we have no available tid
960 * (with no pending frames and no active aggregation,
961 * as we don't handle "holes" properly - the scheduler needs the
962 * frame's seq number and TFD index to match)
967 /* for simplicity, just use the first available tid */
968 iter_data->offloading_tid = ffs(available_tids) - 1;
972 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
973 struct ieee80211_vif *vif)
975 struct iwl_d0i3_iter_data *data = _data;
976 struct iwl_mvm *mvm = data->mvm;
977 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
978 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
980 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
981 if (vif->type != NL80211_IFTYPE_STATION ||
982 !vif->bss_conf.assoc)
986 * in case of pending tx packets or active aggregations,
987 * avoid offloading features in order to prevent reuse of
988 * the same qos seq counters.
990 if (iwl_mvm_disallow_offloading(mvm, vif, data))
991 data->disable_offloading = true;
993 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
994 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags);
997 * on init/association, mvm already configures POWER_TABLE_CMD
998 * and REPLY_MCAST_FILTER_CMD, so currently don't
999 * reconfigure them (we might want to use different
1000 * params later on, though).
1002 data->ap_sta_id = mvmvif->ap_sta_id;
1006 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1007 struct iwl_wowlan_config_cmd *cmd,
1008 struct iwl_d0i3_iter_data *iter_data)
1010 struct ieee80211_sta *ap_sta;
1011 struct iwl_mvm_sta *mvm_ap_sta;
1013 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1018 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1019 if (IS_ERR_OR_NULL(ap_sta))
1022 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1023 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1024 cmd->offloading_tid = iter_data->offloading_tid;
1027 * The d0i3 uCode takes care of the nonqos counters,
1028 * so configure only the qos seq ones.
1030 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1034 static int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1036 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1037 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1039 struct iwl_d0i3_iter_data d0i3_iter_data = {
1042 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1043 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1044 IWL_WOWLAN_WAKEUP_BEACON_MISS |
1045 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
1046 IWL_WOWLAN_WAKEUP_BCN_FILTERING),
1048 struct iwl_d3_manager_config d3_cfg_cmd = {
1049 .min_sleep_time = cpu_to_le32(1000),
1052 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1054 /* make sure we have no running tx while configuring the qos */
1055 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1059 * iwl_mvm_ref_sync takes a reference before checking the flag.
1060 * so by checking there is no held reference we prevent a state
1061 * in which iwl_mvm_ref_sync continues successfully while we
1062 * configure the firmware to enter d0i3
1064 if (iwl_mvm_ref_taken(mvm)) {
1065 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1066 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1067 wake_up(&mvm->d0i3_exit_waitq);
1071 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1072 IEEE80211_IFACE_ITER_NORMAL,
1073 iwl_mvm_enter_d0i3_iterator,
1075 if (d0i3_iter_data.vif_count == 1) {
1076 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1077 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1079 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1080 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1081 mvm->d0i3_offloading = false;
1084 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, &d0i3_iter_data);
1085 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1086 sizeof(wowlan_config_cmd),
1087 &wowlan_config_cmd);
1091 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1092 flags | CMD_MAKE_TRANS_IDLE,
1093 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1096 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1097 struct ieee80211_vif *vif)
1099 struct iwl_mvm *mvm = _data;
1100 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1102 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1103 if (vif->type != NL80211_IFTYPE_STATION ||
1104 !vif->bss_conf.assoc)
1107 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1110 static void iwl_mvm_d0i3_disconnect_iter(void *data, u8 *mac,
1111 struct ieee80211_vif *vif)
1113 struct iwl_mvm *mvm = data;
1114 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1116 if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc &&
1117 mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1118 ieee80211_connection_loss(vif);
1121 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1123 struct ieee80211_sta *sta = NULL;
1124 struct iwl_mvm_sta *mvm_ap_sta;
1126 bool wake_queues = false;
1128 lockdep_assert_held(&mvm->mutex);
1130 spin_lock_bh(&mvm->d0i3_tx_lock);
1132 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1135 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1137 /* get the sta in order to update seq numbers and re-enqueue skbs */
1138 sta = rcu_dereference_protected(
1139 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1140 lockdep_is_held(&mvm->mutex));
1142 if (IS_ERR_OR_NULL(sta)) {
1147 if (mvm->d0i3_offloading && qos_seq) {
1148 /* update qos seq numbers if offloading was enabled */
1149 mvm_ap_sta = (struct iwl_mvm_sta *)sta->drv_priv;
1150 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1151 u16 seq = le16_to_cpu(qos_seq[i]);
1152 /* firmware stores last-used one, we store next one */
1154 mvm_ap_sta->tid_data[i].seq_number = seq;
1158 /* re-enqueue (or drop) all packets */
1159 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1160 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1162 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1163 ieee80211_free_txskb(mvm->hw, skb);
1165 /* if the skb_queue is not empty, we need to wake queues */
1168 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1169 wake_up(&mvm->d0i3_exit_waitq);
1170 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1172 ieee80211_wake_queues(mvm->hw);
1174 spin_unlock_bh(&mvm->d0i3_tx_lock);
1177 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1179 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1180 struct iwl_host_cmd get_status_cmd = {
1181 .id = WOWLAN_GET_STATUSES,
1182 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1184 struct iwl_wowlan_status *status;
1186 u32 disconnection_reasons, wakeup_reasons;
1187 __le16 *qos_seq = NULL;
1189 mutex_lock(&mvm->mutex);
1190 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1194 if (!get_status_cmd.resp_pkt)
1197 status = (void *)get_status_cmd.resp_pkt->data;
1198 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1199 qos_seq = status->qos_seq_ctr;
1201 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1203 disconnection_reasons =
1204 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1205 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1206 if (wakeup_reasons & disconnection_reasons)
1207 ieee80211_iterate_active_interfaces(
1208 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1209 iwl_mvm_d0i3_disconnect_iter, mvm);
1211 iwl_free_resp(&get_status_cmd);
1213 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1214 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1215 mutex_unlock(&mvm->mutex);
1218 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1220 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1224 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1226 mutex_lock(&mvm->d0i3_suspend_mutex);
1227 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1228 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1229 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1230 mutex_unlock(&mvm->d0i3_suspend_mutex);
1233 mutex_unlock(&mvm->d0i3_suspend_mutex);
1235 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1239 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1240 IEEE80211_IFACE_ITER_NORMAL,
1241 iwl_mvm_exit_d0i3_iterator,
1244 schedule_work(&mvm->d0i3_exit_work);
1248 static int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1250 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1252 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1253 return _iwl_mvm_exit_d0i3(mvm);
1256 static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode,
1257 struct napi_struct *napi,
1258 struct net_device *napi_dev,
1259 int (*poll)(struct napi_struct *, int),
1262 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1264 ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight);
1267 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1268 .start = iwl_op_mode_mvm_start,
1269 .stop = iwl_op_mode_mvm_stop,
1270 .rx = iwl_mvm_rx_dispatch,
1271 .queue_full = iwl_mvm_stop_sw_queue,
1272 .queue_not_full = iwl_mvm_wake_sw_queue,
1273 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,
1274 .free_skb = iwl_mvm_free_skb,
1275 .nic_error = iwl_mvm_nic_error,
1276 .cmd_queue_full = iwl_mvm_cmd_queue_full,
1277 .nic_config = iwl_mvm_nic_config,
1278 .enter_d0i3 = iwl_mvm_enter_d0i3,
1279 .exit_d0i3 = iwl_mvm_exit_d0i3,
1280 .napi_add = iwl_mvm_napi_add,