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 .tfd_q_hang_detect = true
97 /* rest of fields are 0 by default */
100 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
101 MODULE_PARM_DESC(init_dbg,
102 "set to true to debug an ASSERT in INIT fw (default: false");
103 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
104 MODULE_PARM_DESC(power_scheme,
105 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
106 module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
108 MODULE_PARM_DESC(tfd_q_hang_detect,
109 "TFD queues hang detection (default: true");
112 * module init and exit functions
114 static int __init iwl_mvm_init(void)
118 ret = iwl_mvm_rate_control_register();
120 pr_err("Unable to register rate control algorithm: %d\n", ret);
124 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
127 pr_err("Unable to register MVM op_mode: %d\n", ret);
128 iwl_mvm_rate_control_unregister();
133 module_init(iwl_mvm_init);
135 static void __exit iwl_mvm_exit(void)
137 iwl_opmode_deregister("iwlmvm");
138 iwl_mvm_rate_control_unregister();
140 module_exit(iwl_mvm_exit);
142 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
144 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
145 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
147 u32 phy_config = iwl_mvm_get_phy_config(mvm);
149 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
150 FW_PHY_CFG_RADIO_TYPE_POS;
151 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
152 FW_PHY_CFG_RADIO_STEP_POS;
153 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
154 FW_PHY_CFG_RADIO_DASH_POS;
157 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
158 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
159 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
160 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
162 /* radio configuration */
163 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
164 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
165 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
167 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
168 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
171 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
172 * shouldn't be set to any non-zero value. The same is supposed to be
173 * true of the other HW, but unsetting them (such as the 7260) causes
174 * automatic tests to fail on seemingly unrelated errors. Need to
175 * further investigate this, but for now we'll separate cases.
177 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
178 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
180 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
181 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
182 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
183 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
184 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
185 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
186 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
187 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
190 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
191 radio_cfg_step, radio_cfg_dash);
194 * W/A : NIC is stuck in a reset state after Early PCIe power off
195 * (PCIe power is lost before PERST# is asserted), causing ME FW
196 * to lose ownership and not being able to obtain it back.
198 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
199 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
200 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
201 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
204 struct iwl_rx_handlers {
207 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
208 struct iwl_device_cmd *cmd);
211 #define RX_HANDLER(_cmd_id, _fn, _async) \
212 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
215 * Handlers for fw notifications
216 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
217 * This list should be in order of frequency for performance purposes.
219 * The handler can be SYNC - this means that it will be called in the Rx path
220 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
221 * only in this case!), it should be set as ASYNC. In that case, it will be
222 * called from a worker with mvm->mutex held.
224 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
225 RX_HANDLER(REPLY_RX_MPDU_CMD, iwl_mvm_rx_rx_mpdu, false),
226 RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false),
227 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
228 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
230 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
231 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true),
232 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true),
233 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
234 iwl_mvm_rx_ant_coupling_notif, true),
236 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
238 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false),
240 RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
241 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true),
242 RX_HANDLER(SCAN_ITERATION_COMPLETE,
243 iwl_mvm_rx_scan_offload_iter_complete_notif, false),
244 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
245 iwl_mvm_rx_scan_offload_complete_notif, true),
246 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_offload_results,
248 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
251 RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
252 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
254 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
257 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
258 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
259 iwl_mvm_power_uapsd_misbehaving_ap_notif, false),
260 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif, true),
262 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
264 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif, false),
268 #define CMD(x) [x] = #x
270 static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
273 CMD(INIT_COMPLETE_NOTIF),
274 CMD(PHY_CONTEXT_CMD),
279 CMD(MAC_CONTEXT_CMD),
281 CMD(TIME_EVENT_NOTIFICATION),
282 CMD(BINDING_CONTEXT_CMD),
284 CMD(NON_QOS_TX_COUNTER_CMD),
285 CMD(RADIO_VERSION_NOTIFICATION),
286 CMD(SCAN_REQUEST_CMD),
288 CMD(SCAN_START_NOTIFICATION),
289 CMD(SCAN_RESULTS_NOTIFICATION),
290 CMD(SCAN_COMPLETE_NOTIFICATION),
292 CMD(PHY_CONFIGURATION_CMD),
293 CMD(CALIB_RES_NOTIF_PHY_DB),
294 CMD(SET_CALIB_DEFAULT_CMD),
295 CMD(CALIBRATION_COMPLETE_NOTIFICATION),
300 CMD(SCAN_OFFLOAD_CONFIG_CMD),
301 CMD(MATCH_FOUND_NOTIFICATION),
302 CMD(SCAN_OFFLOAD_REQUEST_CMD),
303 CMD(SCAN_OFFLOAD_ABORT_CMD),
305 CMD(SCAN_OFFLOAD_COMPLETE),
306 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
307 CMD(SCAN_ITERATION_COMPLETE),
308 CMD(POWER_TABLE_CMD),
310 CMD(REPLY_RX_PHY_CMD),
311 CMD(REPLY_RX_MPDU_CMD),
312 CMD(BEACON_NOTIFICATION),
313 CMD(BEACON_TEMPLATE_CMD),
314 CMD(STATISTICS_NOTIFICATION),
315 CMD(EOSP_NOTIFICATION),
316 CMD(REDUCE_TX_POWER_CMD),
317 CMD(TX_ANT_CONFIGURATION_CMD),
320 CMD(PROT_OFFLOAD_CONFIG_CMD),
321 CMD(OFFLOADS_QUERY_CMD),
322 CMD(REMOTE_WAKE_CONFIG_CMD),
323 CMD(WOWLAN_PATTERNS),
324 CMD(WOWLAN_CONFIGURATION),
325 CMD(WOWLAN_TSC_RSC_PARAM),
326 CMD(WOWLAN_TKIP_PARAM),
327 CMD(WOWLAN_KEK_KCK_MATERIAL),
328 CMD(WOWLAN_GET_STATUSES),
329 CMD(WOWLAN_TX_POWER_PER_DB),
330 CMD(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
331 CMD(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
332 CMD(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
333 CMD(CARD_STATE_NOTIFICATION),
334 CMD(MISSED_BEACONS_NOTIFICATION),
335 CMD(BT_COEX_PRIO_TABLE),
336 CMD(BT_COEX_PROT_ENV),
337 CMD(BT_PROFILE_NOTIFICATION),
339 CMD(MCAST_FILTER_CMD),
340 CMD(BCAST_FILTER_CMD),
341 CMD(REPLY_SF_CFG_CMD),
342 CMD(REPLY_BEACON_FILTERING_CMD),
343 CMD(CMD_DTS_MEASUREMENT_TRIGGER),
344 CMD(DTS_MEASUREMENT_NOTIFICATION),
345 CMD(REPLY_THERMAL_MNG_BACKOFF),
346 CMD(MAC_PM_POWER_TABLE),
349 CMD(BT_COEX_UPDATE_SW_BOOST),
350 CMD(BT_COEX_UPDATE_CORUN_LUT),
351 CMD(BT_COEX_UPDATE_REDUCED_TXP),
352 CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
353 CMD(ANTENNA_COUPLING_NOTIFICATION),
357 CMD(SCAN_ABORT_UMAC),
358 CMD(SCAN_COMPLETE_UMAC),
359 CMD(TDLS_CHANNEL_SWITCH_CMD),
360 CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION),
361 CMD(TDLS_CONFIG_CMD),
365 /* this forward declaration can avoid to export the function */
366 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
367 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
369 static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
371 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
376 while (pwr_tx_backoff->pwr) {
377 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
378 return pwr_tx_backoff->backoff;
386 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
388 static struct iwl_op_mode *
389 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
390 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
392 struct ieee80211_hw *hw;
393 struct iwl_op_mode *op_mode;
395 struct iwl_trans_config trans_cfg = {};
396 static const u8 no_reclaim_cmds[] = {
403 * We use IWL_MVM_STATION_COUNT to check the validity of the station
404 * index all over the driver - check that its value corresponds to the
407 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
409 /********************************
410 * 1. Allocating and configuring HW data
411 ********************************/
412 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
413 sizeof(struct iwl_mvm),
418 if (cfg->max_rx_agg_size)
419 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
421 if (cfg->max_tx_agg_size)
422 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
425 op_mode->ops = &iwl_mvm_ops;
427 mvm = IWL_OP_MODE_GET_MVM(op_mode);
428 mvm->dev = trans->dev;
434 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
437 mvm->first_agg_queue = 16;
438 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
439 if (mvm->cfg->base_params->num_of_queues == 16) {
441 mvm->first_agg_queue = 12;
443 mvm->sf_state = SF_UNINIT;
444 mvm->low_latency_agg_frame_limit = 6;
445 mvm->cur_ucode = IWL_UCODE_INIT;
447 mutex_init(&mvm->mutex);
448 mutex_init(&mvm->d0i3_suspend_mutex);
449 spin_lock_init(&mvm->async_handlers_lock);
450 INIT_LIST_HEAD(&mvm->time_event_list);
451 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
452 INIT_LIST_HEAD(&mvm->async_handlers_list);
453 spin_lock_init(&mvm->time_event_lock);
455 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
456 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
457 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
458 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
459 INIT_WORK(&mvm->fw_error_dump_wk, iwl_mvm_fw_error_dump_wk);
460 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
462 spin_lock_init(&mvm->d0i3_tx_lock);
463 spin_lock_init(&mvm->refs_lock);
464 skb_queue_head_init(&mvm->d0i3_tx);
465 init_waitqueue_head(&mvm->d0i3_exit_waitq);
467 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
470 * Populate the state variables that the transport layer needs
473 trans_cfg.op_mode = op_mode;
474 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
475 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
476 trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
478 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
479 trans_cfg.bc_table_dword = true;
481 trans_cfg.command_names = iwl_mvm_cmd_strings;
483 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
484 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
485 trans_cfg.scd_set_active = true;
487 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
489 /* Set a short watchdog for the command queue */
490 trans_cfg.cmd_q_wdg_timeout =
491 iwlmvm_mod_params.tfd_q_hang_detect ? IWL_DEF_WD_TIMEOUT :
492 IWL_WATCHDOG_DISABLED;
494 snprintf(mvm->hw->wiphy->fw_version,
495 sizeof(mvm->hw->wiphy->fw_version),
496 "%s", fw->fw_version);
498 /* Configure transport layer */
499 iwl_trans_configure(mvm->trans, &trans_cfg);
501 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
502 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
503 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
504 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
505 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
506 sizeof(trans->dbg_conf_tlv));
508 /* set up notification wait support */
509 iwl_notification_wait_init(&mvm->notif_wait);
512 mvm->phy_db = iwl_phy_db_init(trans);
514 IWL_ERR(mvm, "Cannot init phy_db\n");
518 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
519 mvm->cfg->name, mvm->trans->hw_rev);
521 min_backoff = calc_min_backoff(trans, cfg);
522 iwl_mvm_tt_initialize(mvm, min_backoff);
523 /* set the nvm_file_name according to priority */
524 if (iwlwifi_mod_params.nvm_file) {
525 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
527 if ((trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) &&
528 (CSR_HW_REV_STEP(trans->hw_rev) == SILICON_A_STEP))
529 mvm->nvm_file_name = mvm->cfg->default_nvm_file_8000A;
531 mvm->nvm_file_name = mvm->cfg->default_nvm_file;
534 if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
535 "not allowing power-up and not having nvm_file\n"))
539 * Even if nvm exists in the nvm_file driver should read again the nvm
540 * from the nic because there might be entries that exist in the OTP
541 * and not in the file.
542 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
544 if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
545 err = iwl_nvm_init(mvm, false);
549 err = iwl_trans_start_hw(mvm->trans);
553 mutex_lock(&mvm->mutex);
554 err = iwl_run_init_mvm_ucode(mvm, true);
555 if (!err || !iwlmvm_mod_params.init_dbg)
556 iwl_trans_stop_device(trans);
557 mutex_unlock(&mvm->mutex);
558 /* returns 0 if successful, 1 if success but in rfkill */
559 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
560 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
565 scan_size = iwl_mvm_scan_size(mvm);
567 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
571 /* Set EBS as successful as long as not stated otherwise by the FW. */
572 mvm->last_ebs_successful = true;
574 err = iwl_mvm_mac_setup_register(mvm);
578 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
582 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
584 /* rpm starts with a taken ref. only set the appropriate bit here. */
585 mvm->refs[IWL_MVM_REF_UCODE_DOWN] = 1;
590 ieee80211_unregister_hw(mvm->hw);
591 iwl_mvm_leds_exit(mvm);
593 iwl_phy_db_free(mvm->phy_db);
594 kfree(mvm->scan_cmd);
595 if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
596 iwl_trans_op_mode_leave(trans);
597 ieee80211_free_hw(mvm->hw);
601 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
603 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
606 iwl_mvm_leds_exit(mvm);
608 iwl_mvm_tt_exit(mvm);
610 ieee80211_unregister_hw(mvm->hw);
612 kfree(mvm->scan_cmd);
613 kfree(mvm->mcast_filter_cmd);
614 mvm->mcast_filter_cmd = NULL;
616 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
617 kfree(mvm->d3_resume_sram);
618 if (mvm->nd_config) {
619 kfree(mvm->nd_config->match_sets);
620 kfree(mvm->nd_config);
621 mvm->nd_config = NULL;
625 iwl_trans_op_mode_leave(mvm->trans);
627 iwl_phy_db_free(mvm->phy_db);
630 iwl_free_nvm_data(mvm->nvm_data);
631 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
632 kfree(mvm->nvm_sections[i].data);
634 ieee80211_free_hw(mvm->hw);
637 struct iwl_async_handler_entry {
638 struct list_head list;
639 struct iwl_rx_cmd_buffer rxb;
640 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
641 struct iwl_device_cmd *cmd);
644 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
646 struct iwl_async_handler_entry *entry, *tmp;
648 spin_lock_bh(&mvm->async_handlers_lock);
649 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
650 iwl_free_rxb(&entry->rxb);
651 list_del(&entry->list);
654 spin_unlock_bh(&mvm->async_handlers_lock);
657 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
659 struct iwl_mvm *mvm =
660 container_of(wk, struct iwl_mvm, async_handlers_wk);
661 struct iwl_async_handler_entry *entry, *tmp;
662 struct list_head local_list;
664 INIT_LIST_HEAD(&local_list);
666 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
667 mutex_lock(&mvm->mutex);
670 * Sync with Rx path with a lock. Remove all the entries from this list,
671 * add them to a local one (lock free), and then handle them.
673 spin_lock_bh(&mvm->async_handlers_lock);
674 list_splice_init(&mvm->async_handlers_list, &local_list);
675 spin_unlock_bh(&mvm->async_handlers_lock);
677 list_for_each_entry_safe(entry, tmp, &local_list, list) {
678 if (entry->fn(mvm, &entry->rxb, NULL))
680 "returned value from ASYNC handlers are ignored\n");
681 iwl_free_rxb(&entry->rxb);
682 list_del(&entry->list);
685 mutex_unlock(&mvm->mutex);
688 static int iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode,
689 struct iwl_rx_cmd_buffer *rxb,
690 struct iwl_device_cmd *cmd)
692 struct iwl_rx_packet *pkt = rxb_addr(rxb);
693 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
697 * Do the notification wait before RX handlers so
698 * even if the RX handler consumes the RXB we have
699 * access to it in the notification wait entry.
701 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
703 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
704 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
705 struct iwl_async_handler_entry *entry;
707 if (rx_h->cmd_id != pkt->hdr.cmd)
711 return rx_h->fn(mvm, rxb, cmd);
713 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
714 /* we can't do much... */
718 entry->rxb._page = rxb_steal_page(rxb);
719 entry->rxb._offset = rxb->_offset;
720 entry->rxb._rx_page_order = rxb->_rx_page_order;
721 entry->fn = rx_h->fn;
722 spin_lock(&mvm->async_handlers_lock);
723 list_add_tail(&entry->list, &mvm->async_handlers_list);
724 spin_unlock(&mvm->async_handlers_lock);
725 schedule_work(&mvm->async_handlers_wk);
732 static void iwl_mvm_stop_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_inc_return(&mvm->mac80211_queue_stop_count[mq]) > 1) {
741 IWL_DEBUG_TX_QUEUES(mvm,
742 "queue %d (mac80211 %d) already stopped\n",
747 ieee80211_stop_queue(mvm->hw, mq);
750 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
752 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
753 int mq = mvm->queue_to_mac80211[queue];
755 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
758 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[mq]) > 0) {
759 IWL_DEBUG_TX_QUEUES(mvm,
760 "queue %d (mac80211 %d) still stopped\n",
765 ieee80211_wake_queue(mvm->hw, mq);
768 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
771 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
773 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
775 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
778 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
780 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
781 bool calibrating = ACCESS_ONCE(mvm->calibrating);
784 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
786 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
788 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
790 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
792 iwl_abort_notification_waits(&mvm->notif_wait);
795 * Stop the device if we run OPERATIONAL firmware or if we are in the
796 * middle of the calibrations.
798 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
801 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
803 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
804 struct ieee80211_tx_info *info;
806 info = IEEE80211_SKB_CB(skb);
807 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
808 ieee80211_free_txskb(mvm->hw, skb);
811 struct iwl_mvm_reprobe {
813 struct work_struct work;
816 static void iwl_mvm_reprobe_wk(struct work_struct *wk)
818 struct iwl_mvm_reprobe *reprobe;
820 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
821 if (device_reprobe(reprobe->dev))
822 dev_err(reprobe->dev, "reprobe failed!\n");
824 module_put(THIS_MODULE);
827 static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
829 struct iwl_mvm *mvm =
830 container_of(work, struct iwl_mvm, fw_error_dump_wk);
832 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
835 mutex_lock(&mvm->mutex);
836 iwl_mvm_fw_error_dump(mvm);
838 /* start recording again if the firmware is not crashed */
839 WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
840 mvm->fw->dbg_dest_tlv &&
841 iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
843 mutex_unlock(&mvm->mutex);
845 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
848 void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
850 iwl_abort_notification_waits(&mvm->notif_wait);
853 * This is a bit racy, but worst case we tell mac80211 about
854 * a stopped/aborted scan when that was already done which
855 * is not a problem. It is necessary to abort any os scan
856 * here because mac80211 requires having the scan cleared
858 * We'll reset the scan_status to NONE in restart cleanup in
859 * the next start() call from mac80211. If restart isn't called
860 * (no fw restart) scan status will stay busy.
862 switch (mvm->scan_status) {
863 case IWL_MVM_SCAN_NONE:
865 case IWL_MVM_SCAN_OS:
866 ieee80211_scan_completed(mvm->hw, true);
868 case IWL_MVM_SCAN_SCHED:
869 /* Sched scan will be restarted by mac80211 in restart_hw. */
870 if (!mvm->restart_fw)
871 ieee80211_sched_scan_stopped(mvm->hw);
876 * If we're restarting already, don't cycle restarts.
877 * If INIT fw asserted, it will likely fail again.
878 * If WoWLAN fw asserted, don't restart either, mac80211
879 * can't recover this since we're already half suspended.
881 if (!mvm->restart_fw && fw_error) {
882 schedule_work(&mvm->fw_error_dump_wk);
883 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
885 struct iwl_mvm_reprobe *reprobe;
888 "Firmware error during reconfiguration - reprobe!\n");
891 * get a module reference to avoid doing this while unloading
892 * anyway and to avoid scheduling a work with code that's
895 if (!try_module_get(THIS_MODULE)) {
896 IWL_ERR(mvm, "Module is being unloaded - abort\n");
900 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
902 module_put(THIS_MODULE);
905 reprobe->dev = mvm->trans->dev;
906 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
907 schedule_work(&reprobe->work);
908 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
909 /* don't let the transport/FW power down */
910 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
912 if (fw_error && mvm->restart_fw > 0)
914 ieee80211_restart_hw(mvm->hw);
918 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
920 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
922 iwl_mvm_dump_nic_error_log(mvm);
924 iwl_mvm_nic_restart(mvm, true);
927 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
929 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
932 iwl_mvm_nic_restart(mvm, true);
935 struct iwl_d0i3_iter_data {
940 bool disable_offloading;
943 static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
944 struct ieee80211_vif *vif,
945 struct iwl_d0i3_iter_data *iter_data)
947 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
948 struct ieee80211_sta *ap_sta;
949 struct iwl_mvm_sta *mvmsta;
950 u32 available_tids = 0;
953 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
954 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
957 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]);
958 if (IS_ERR_OR_NULL(ap_sta))
961 mvmsta = iwl_mvm_sta_from_mac80211(ap_sta);
962 spin_lock_bh(&mvmsta->lock);
963 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
964 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
967 * in case of pending tx packets, don't use this tid
968 * for offloading in order to prevent reuse of the same
971 if (iwl_mvm_tid_queued(tid_data))
974 if (tid_data->state != IWL_AGG_OFF)
977 available_tids |= BIT(tid);
979 spin_unlock_bh(&mvmsta->lock);
982 * disallow protocol offloading if we have no available tid
983 * (with no pending frames and no active aggregation,
984 * as we don't handle "holes" properly - the scheduler needs the
985 * frame's seq number and TFD index to match)
990 /* for simplicity, just use the first available tid */
991 iter_data->offloading_tid = ffs(available_tids) - 1;
995 static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
996 struct ieee80211_vif *vif)
998 struct iwl_d0i3_iter_data *data = _data;
999 struct iwl_mvm *mvm = data->mvm;
1000 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1001 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1003 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1004 if (vif->type != NL80211_IFTYPE_STATION ||
1005 !vif->bss_conf.assoc)
1009 * in case of pending tx packets or active aggregations,
1010 * avoid offloading features in order to prevent reuse of
1011 * the same qos seq counters.
1013 if (iwl_mvm_disallow_offloading(mvm, vif, data))
1014 data->disable_offloading = true;
1016 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
1017 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags);
1020 * on init/association, mvm already configures POWER_TABLE_CMD
1021 * and REPLY_MCAST_FILTER_CMD, so currently don't
1022 * reconfigure them (we might want to use different
1023 * params later on, though).
1025 data->ap_sta_id = mvmvif->ap_sta_id;
1029 static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
1030 struct iwl_wowlan_config_cmd *cmd,
1031 struct iwl_d0i3_iter_data *iter_data)
1033 struct ieee80211_sta *ap_sta;
1034 struct iwl_mvm_sta *mvm_ap_sta;
1036 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1041 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1042 if (IS_ERR_OR_NULL(ap_sta))
1045 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
1046 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
1047 cmd->offloading_tid = iter_data->offloading_tid;
1050 * The d0i3 uCode takes care of the nonqos counters,
1051 * so configure only the qos seq ones.
1053 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1058 int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
1060 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1061 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1063 struct iwl_d0i3_iter_data d0i3_iter_data = {
1066 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1067 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1068 IWL_WOWLAN_WAKEUP_BEACON_MISS |
1069 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
1070 IWL_WOWLAN_WAKEUP_BCN_FILTERING),
1072 struct iwl_d3_manager_config d3_cfg_cmd = {
1073 .min_sleep_time = cpu_to_le32(1000),
1074 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
1077 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
1079 /* make sure we have no running tx while configuring the qos */
1080 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1084 * iwl_mvm_ref_sync takes a reference before checking the flag.
1085 * so by checking there is no held reference we prevent a state
1086 * in which iwl_mvm_ref_sync continues successfully while we
1087 * configure the firmware to enter d0i3
1089 if (iwl_mvm_ref_taken(mvm)) {
1090 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1091 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1092 wake_up(&mvm->d0i3_exit_waitq);
1096 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1097 IEEE80211_IFACE_ITER_NORMAL,
1098 iwl_mvm_enter_d0i3_iterator,
1100 if (d0i3_iter_data.vif_count == 1) {
1101 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
1102 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
1104 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1105 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1106 mvm->d0i3_offloading = false;
1109 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, &d0i3_iter_data);
1110 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1111 sizeof(wowlan_config_cmd),
1112 &wowlan_config_cmd);
1116 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1117 flags | CMD_MAKE_TRANS_IDLE,
1118 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1121 static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1122 struct ieee80211_vif *vif)
1124 struct iwl_mvm *mvm = _data;
1125 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1127 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1128 if (vif->type != NL80211_IFTYPE_STATION ||
1129 !vif->bss_conf.assoc)
1132 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1135 static void iwl_mvm_d0i3_disconnect_iter(void *data, u8 *mac,
1136 struct ieee80211_vif *vif)
1138 struct iwl_mvm *mvm = data;
1139 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1141 if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc &&
1142 mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1143 ieee80211_connection_loss(vif);
1146 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1148 struct ieee80211_sta *sta = NULL;
1149 struct iwl_mvm_sta *mvm_ap_sta;
1151 bool wake_queues = false;
1153 lockdep_assert_held(&mvm->mutex);
1155 spin_lock_bh(&mvm->d0i3_tx_lock);
1157 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1160 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1162 /* get the sta in order to update seq numbers and re-enqueue skbs */
1163 sta = rcu_dereference_protected(
1164 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1165 lockdep_is_held(&mvm->mutex));
1167 if (IS_ERR_OR_NULL(sta)) {
1172 if (mvm->d0i3_offloading && qos_seq) {
1173 /* update qos seq numbers if offloading was enabled */
1174 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
1175 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1176 u16 seq = le16_to_cpu(qos_seq[i]);
1177 /* firmware stores last-used one, we store next one */
1179 mvm_ap_sta->tid_data[i].seq_number = seq;
1183 /* re-enqueue (or drop) all packets */
1184 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1185 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1187 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1188 ieee80211_free_txskb(mvm->hw, skb);
1190 /* if the skb_queue is not empty, we need to wake queues */
1193 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1194 wake_up(&mvm->d0i3_exit_waitq);
1195 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1197 ieee80211_wake_queues(mvm->hw);
1199 spin_unlock_bh(&mvm->d0i3_tx_lock);
1202 static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1204 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1205 struct iwl_host_cmd get_status_cmd = {
1206 .id = WOWLAN_GET_STATUSES,
1207 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
1209 struct iwl_wowlan_status *status;
1211 u32 disconnection_reasons, wakeup_reasons;
1212 __le16 *qos_seq = NULL;
1214 mutex_lock(&mvm->mutex);
1215 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1219 if (!get_status_cmd.resp_pkt)
1222 status = (void *)get_status_cmd.resp_pkt->data;
1223 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
1224 qos_seq = status->qos_seq_ctr;
1226 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1228 disconnection_reasons =
1229 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1230 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1231 if (wakeup_reasons & disconnection_reasons)
1232 ieee80211_iterate_active_interfaces(
1233 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1234 iwl_mvm_d0i3_disconnect_iter, mvm);
1236 iwl_free_resp(&get_status_cmd);
1238 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
1239 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
1240 mutex_unlock(&mvm->mutex);
1243 int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
1245 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1249 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
1251 mutex_lock(&mvm->d0i3_suspend_mutex);
1252 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1253 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1254 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1255 mutex_unlock(&mvm->d0i3_suspend_mutex);
1258 mutex_unlock(&mvm->d0i3_suspend_mutex);
1260 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1264 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1265 IEEE80211_IFACE_ITER_NORMAL,
1266 iwl_mvm_exit_d0i3_iterator,
1269 schedule_work(&mvm->d0i3_exit_work);
1273 int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
1275 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1277 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1278 return _iwl_mvm_exit_d0i3(mvm);
1281 static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode,
1282 struct napi_struct *napi,
1283 struct net_device *napi_dev,
1284 int (*poll)(struct napi_struct *, int),
1287 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1289 ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight);
1292 static const struct iwl_op_mode_ops iwl_mvm_ops = {
1293 .start = iwl_op_mode_mvm_start,
1294 .stop = iwl_op_mode_mvm_stop,
1295 .rx = iwl_mvm_rx_dispatch,
1296 .queue_full = iwl_mvm_stop_sw_queue,
1297 .queue_not_full = iwl_mvm_wake_sw_queue,
1298 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,
1299 .free_skb = iwl_mvm_free_skb,
1300 .nic_error = iwl_mvm_nic_error,
1301 .cmd_queue_full = iwl_mvm_cmd_queue_full,
1302 .nic_config = iwl_mvm_nic_config,
1303 .enter_d0i3 = iwl_mvm_enter_d0i3,
1304 .exit_d0i3 = iwl_mvm_exit_d0i3,
1305 .napi_add = iwl_mvm_napi_add,