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 - 2013 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <linux/module.h>
64 #include <net/mac80211.h>
66 #include "iwl-notif-wait.h"
67 #include "iwl-trans.h"
68 #include "iwl-op-mode.h"
70 #include "iwl-debug.h"
72 #include "iwl-modparams.h"
74 #include "iwl-phy-db.h"
75 #include "iwl-eeprom-parse.h"
80 #include "fw-api-scan.h"
81 #include "time-event.h"
84 * module name, copyright, version, etc.
86 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
88 #define DRV_VERSION IWLWIFI_VERSION
90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
91 MODULE_VERSION(DRV_VERSION);
92 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
93 MODULE_LICENSE("GPL");
95 static const struct iwl_op_mode_ops iwl_mvm_ops;
97 struct iwl_mvm_mod_params iwlmvm_mod_params = {
98 .power_scheme = IWL_POWER_SCHEME_BPS,
99 /* rest of fields are 0 by default */
102 module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
103 MODULE_PARM_DESC(init_dbg,
104 "set to true to debug an ASSERT in INIT fw (default: false");
105 module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
106 MODULE_PARM_DESC(power_scheme,
107 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
110 * module init and exit functions
112 static int __init iwl_mvm_init(void)
116 ret = iwl_mvm_rate_control_register();
118 pr_err("Unable to register rate control algorithm: %d\n", ret);
122 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
125 pr_err("Unable to register MVM op_mode: %d\n", ret);
126 iwl_mvm_rate_control_unregister();
131 module_init(iwl_mvm_init);
133 static void __exit iwl_mvm_exit(void)
135 iwl_opmode_deregister("iwlmvm");
136 iwl_mvm_rate_control_unregister();
138 module_exit(iwl_mvm_exit);
140 static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
142 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
143 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
146 radio_cfg_type = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_TYPE) >>
147 FW_PHY_CFG_RADIO_TYPE_POS;
148 radio_cfg_step = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_STEP) >>
149 FW_PHY_CFG_RADIO_STEP_POS;
150 radio_cfg_dash = (mvm->fw->phy_config & FW_PHY_CFG_RADIO_DASH) >>
151 FW_PHY_CFG_RADIO_DASH_POS;
154 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
155 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
156 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
157 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
159 /* radio configuration */
160 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
161 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
162 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
164 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
165 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
168 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
170 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
171 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
172 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
173 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
174 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
175 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
176 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
177 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
180 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
181 radio_cfg_step, radio_cfg_dash);
184 * W/A : NIC is stuck in a reset state after Early PCIe power off
185 * (PCIe power is lost before PERST# is asserted), causing ME FW
186 * to lose ownership and not being able to obtain it back.
188 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
189 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
190 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
193 struct iwl_rx_handlers {
196 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
197 struct iwl_device_cmd *cmd);
200 #define RX_HANDLER(_cmd_id, _fn, _async) \
201 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
204 * Handlers for fw notifications
205 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
206 * This list should be in order of frequency for performance purposes.
208 * The handler can be SYNC - this means that it will be called in the Rx path
209 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
210 * only in this case!), it should be set as ASYNC. In that case, it will be
211 * called from a worker with mvm->mutex held.
213 static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
214 RX_HANDLER(REPLY_RX_MPDU_CMD, iwl_mvm_rx_rx_mpdu, false),
215 RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false),
216 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false),
217 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false),
218 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false),
220 RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
221 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
223 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true),
224 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false),
226 RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
227 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
229 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false),
232 #define CMD(x) [x] = #x
234 static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
237 CMD(INIT_COMPLETE_NOTIF),
238 CMD(PHY_CONTEXT_CMD),
242 CMD(MAC_CONTEXT_CMD),
244 CMD(TIME_EVENT_NOTIFICATION),
245 CMD(BINDING_CONTEXT_CMD),
247 CMD(RADIO_VERSION_NOTIFICATION),
248 CMD(SCAN_REQUEST_CMD),
250 CMD(SCAN_START_NOTIFICATION),
251 CMD(SCAN_RESULTS_NOTIFICATION),
252 CMD(SCAN_COMPLETE_NOTIFICATION),
254 CMD(PHY_CONFIGURATION_CMD),
255 CMD(CALIB_RES_NOTIF_PHY_DB),
256 CMD(SET_CALIB_DEFAULT_CMD),
257 CMD(CALIBRATION_COMPLETE_NOTIFICATION),
261 CMD(SCAN_OFFLOAD_CONFIG_CMD),
262 CMD(SCAN_OFFLOAD_REQUEST_CMD),
263 CMD(SCAN_OFFLOAD_ABORT_CMD),
264 CMD(SCAN_OFFLOAD_COMPLETE),
265 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
266 CMD(POWER_TABLE_CMD),
268 CMD(REPLY_RX_PHY_CMD),
269 CMD(REPLY_RX_MPDU_CMD),
270 CMD(BEACON_NOTIFICATION),
271 CMD(BEACON_TEMPLATE_CMD),
272 CMD(STATISTICS_NOTIFICATION),
273 CMD(TX_ANT_CONFIGURATION_CMD),
275 CMD(PROT_OFFLOAD_CONFIG_CMD),
276 CMD(OFFLOADS_QUERY_CMD),
277 CMD(REMOTE_WAKE_CONFIG_CMD),
278 CMD(WOWLAN_PATTERNS),
279 CMD(WOWLAN_CONFIGURATION),
280 CMD(WOWLAN_TSC_RSC_PARAM),
281 CMD(WOWLAN_TKIP_PARAM),
282 CMD(WOWLAN_KEK_KCK_MATERIAL),
283 CMD(WOWLAN_GET_STATUSES),
284 CMD(WOWLAN_TX_POWER_PER_DB),
285 CMD(NET_DETECT_CONFIG_CMD),
286 CMD(NET_DETECT_PROFILES_QUERY_CMD),
287 CMD(NET_DETECT_PROFILES_CMD),
288 CMD(NET_DETECT_HOTSPOTS_CMD),
289 CMD(NET_DETECT_HOTSPOTS_QUERY_CMD),
290 CMD(CARD_STATE_NOTIFICATION),
291 CMD(BT_COEX_PRIO_TABLE),
292 CMD(BT_COEX_PROT_ENV),
293 CMD(BT_PROFILE_NOTIFICATION),
298 /* this forward declaration can avoid to export the function */
299 static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
301 static struct iwl_op_mode *
302 iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
303 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
305 struct ieee80211_hw *hw;
306 struct iwl_op_mode *op_mode;
308 struct iwl_trans_config trans_cfg = {};
309 static const u8 no_reclaim_cmds[] = {
314 /********************************
315 * 1. Allocating and configuring HW data
316 ********************************/
317 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
318 sizeof(struct iwl_mvm),
324 op_mode->ops = &iwl_mvm_ops;
325 op_mode->trans = trans;
327 mvm = IWL_OP_MODE_GET_MVM(op_mode);
328 mvm->dev = trans->dev;
334 mutex_init(&mvm->mutex);
335 spin_lock_init(&mvm->async_handlers_lock);
336 INIT_LIST_HEAD(&mvm->time_event_list);
337 INIT_LIST_HEAD(&mvm->async_handlers_list);
338 spin_lock_init(&mvm->time_event_lock);
340 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
341 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
342 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
344 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
347 * Populate the state variables that the transport layer needs
350 trans_cfg.op_mode = op_mode;
351 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
352 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
353 trans_cfg.rx_buf_size_8k = iwlwifi_mod_params.amsdu_size_8K;
355 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
356 trans_cfg.bc_table_dword = true;
358 if (!iwlwifi_mod_params.wd_disable)
359 trans_cfg.queue_watchdog_timeout = cfg->base_params->wd_timeout;
361 trans_cfg.queue_watchdog_timeout = IWL_WATCHDOG_DISABLED;
363 trans_cfg.command_names = iwl_mvm_cmd_strings;
365 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
366 trans_cfg.cmd_fifo = IWL_MVM_CMD_FIFO;
368 snprintf(mvm->hw->wiphy->fw_version,
369 sizeof(mvm->hw->wiphy->fw_version),
370 "%s", fw->fw_version);
372 /* Configure transport layer */
373 iwl_trans_configure(mvm->trans, &trans_cfg);
375 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
376 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_res_start);
378 /* set up notification wait support */
379 iwl_notification_wait_init(&mvm->notif_wait);
382 mvm->phy_db = iwl_phy_db_init(trans);
384 IWL_ERR(mvm, "Cannot init phy_db\n");
388 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
389 mvm->cfg->name, mvm->trans->hw_rev);
391 err = iwl_trans_start_hw(mvm->trans);
395 mutex_lock(&mvm->mutex);
396 err = iwl_run_init_mvm_ucode(mvm, true);
397 mutex_unlock(&mvm->mutex);
398 if (err && !iwlmvm_mod_params.init_dbg) {
399 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
403 /* Stop the hw after the ALIVE and NVM has been read */
404 if (!iwlmvm_mod_params.init_dbg)
405 iwl_trans_stop_hw(mvm->trans, false);
407 scan_size = sizeof(struct iwl_scan_cmd) +
408 mvm->fw->ucode_capa.max_probe_length +
409 (MAX_NUM_SCAN_CHANNELS * sizeof(struct iwl_scan_channel));
410 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
414 err = iwl_mvm_mac_setup_register(mvm);
418 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
425 ieee80211_unregister_hw(mvm->hw);
427 iwl_phy_db_free(mvm->phy_db);
428 kfree(mvm->scan_cmd);
429 iwl_trans_stop_hw(trans, true);
430 ieee80211_free_hw(mvm->hw);
434 static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
436 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
439 iwl_mvm_leds_exit(mvm);
441 ieee80211_unregister_hw(mvm->hw);
443 kfree(mvm->scan_cmd);
445 iwl_trans_stop_hw(mvm->trans, true);
447 iwl_phy_db_free(mvm->phy_db);
450 iwl_free_nvm_data(mvm->nvm_data);
451 for (i = 0; i < NVM_NUM_OF_SECTIONS; i++)
452 kfree(mvm->nvm_sections[i].data);
454 ieee80211_free_hw(mvm->hw);
457 struct iwl_async_handler_entry {
458 struct list_head list;
459 struct iwl_rx_cmd_buffer rxb;
460 int (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
461 struct iwl_device_cmd *cmd);
464 void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
466 struct iwl_async_handler_entry *entry, *tmp;
468 spin_lock_bh(&mvm->async_handlers_lock);
469 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
470 iwl_free_rxb(&entry->rxb);
471 list_del(&entry->list);
474 spin_unlock_bh(&mvm->async_handlers_lock);
477 static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
479 struct iwl_mvm *mvm =
480 container_of(wk, struct iwl_mvm, async_handlers_wk);
481 struct iwl_async_handler_entry *entry, *tmp;
482 struct list_head local_list;
484 INIT_LIST_HEAD(&local_list);
486 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
487 mutex_lock(&mvm->mutex);
490 * Sync with Rx path with a lock. Remove all the entries from this list,
491 * add them to a local one (lock free), and then handle them.
493 spin_lock_bh(&mvm->async_handlers_lock);
494 list_splice_init(&mvm->async_handlers_list, &local_list);
495 spin_unlock_bh(&mvm->async_handlers_lock);
497 list_for_each_entry_safe(entry, tmp, &local_list, list) {
498 if (entry->fn(mvm, &entry->rxb, NULL))
500 "returned value from ASYNC handlers are ignored\n");
501 iwl_free_rxb(&entry->rxb);
502 list_del(&entry->list);
505 mutex_unlock(&mvm->mutex);
508 static int iwl_mvm_rx_dispatch(struct iwl_op_mode *op_mode,
509 struct iwl_rx_cmd_buffer *rxb,
510 struct iwl_device_cmd *cmd)
512 struct iwl_rx_packet *pkt = rxb_addr(rxb);
513 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
517 * Do the notification wait before RX handlers so
518 * even if the RX handler consumes the RXB we have
519 * access to it in the notification wait entry.
521 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
523 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
524 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
525 struct iwl_async_handler_entry *entry;
527 if (rx_h->cmd_id != pkt->hdr.cmd)
531 return rx_h->fn(mvm, rxb, cmd);
533 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
534 /* we can't do much... */
538 entry->rxb._page = rxb_steal_page(rxb);
539 entry->rxb._offset = rxb->_offset;
540 entry->rxb._rx_page_order = rxb->_rx_page_order;
541 entry->fn = rx_h->fn;
542 spin_lock(&mvm->async_handlers_lock);
543 list_add_tail(&entry->list, &mvm->async_handlers_list);
544 spin_unlock(&mvm->async_handlers_lock);
545 schedule_work(&mvm->async_handlers_wk);
552 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int queue)
554 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
555 int mq = mvm->queue_to_mac80211[queue];
557 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
560 if (atomic_inc_return(&mvm->queue_stop_count[mq]) > 1) {
561 IWL_DEBUG_TX_QUEUES(mvm,
562 "queue %d (mac80211 %d) already stopped\n",
567 set_bit(mq, &mvm->transport_queue_stop);
568 ieee80211_stop_queue(mvm->hw, mq);
571 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue)
573 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
574 int mq = mvm->queue_to_mac80211[queue];
576 if (WARN_ON_ONCE(mq == IWL_INVALID_MAC80211_QUEUE))
579 if (atomic_dec_return(&mvm->queue_stop_count[mq]) > 0) {
580 IWL_DEBUG_TX_QUEUES(mvm,
581 "queue %d (mac80211 %d) already awake\n",
586 clear_bit(mq, &mvm->transport_queue_stop);
588 ieee80211_wake_queue(mvm->hw, mq);
591 static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
593 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
596 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
598 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
600 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state);
603 static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
605 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
606 struct ieee80211_tx_info *info;
608 info = IEEE80211_SKB_CB(skb);
609 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
610 ieee80211_free_txskb(mvm->hw, skb);
613 static void iwl_mvm_nic_restart(struct iwl_mvm *mvm)
615 iwl_abort_notification_waits(&mvm->notif_wait);
618 * If we're restarting already, don't cycle restarts.
619 * If INIT fw asserted, it will likely fail again.
620 * If WoWLAN fw asserted, don't restart either, mac80211
621 * can't recover this since we're already half suspended.
623 if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
624 IWL_ERR(mvm, "Firmware error during reconfiguration! Abort.\n");
625 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR &&
626 iwlwifi_mod_params.restart_fw) {
628 * This is a bit racy, but worst case we tell mac80211 about
629 * a stopped/aborted (sched) scan when that was already done
630 * which is not a problem. It is necessary to abort any scan
631 * here because mac80211 requires having the scan cleared
633 * We'll reset the scan_status to NONE in restart cleanup in
634 * the next start() call from mac80211.
636 switch (mvm->scan_status) {
637 case IWL_MVM_SCAN_NONE:
639 case IWL_MVM_SCAN_OS:
640 ieee80211_scan_completed(mvm->hw, true);
644 ieee80211_restart_hw(mvm->hw);
648 static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
650 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
652 iwl_mvm_dump_nic_error_log(mvm);
654 iwl_mvm_nic_restart(mvm);
657 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
659 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
662 iwl_mvm_nic_restart(mvm);
665 static const struct iwl_op_mode_ops iwl_mvm_ops = {
666 .start = iwl_op_mode_mvm_start,
667 .stop = iwl_op_mode_mvm_stop,
668 .rx = iwl_mvm_rx_dispatch,
669 .queue_full = iwl_mvm_stop_sw_queue,
670 .queue_not_full = iwl_mvm_wake_sw_queue,
671 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state,
672 .free_skb = iwl_mvm_free_skb,
673 .nic_error = iwl_mvm_nic_error,
674 .cmd_queue_full = iwl_mvm_cmd_queue_full,
675 .nic_config = iwl_mvm_nic_config,