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
;
147 * We can't upload the correct value to the INIT image
148 * as we don't have nvm_data by that time.
150 * TODO: Figure out what we should do here
153 radio_cfg_type
= mvm
->nvm_data
->radio_cfg_type
;
154 radio_cfg_step
= mvm
->nvm_data
->radio_cfg_step
;
155 radio_cfg_dash
= mvm
->nvm_data
->radio_cfg_dash
;
163 reg_val
|= CSR_HW_REV_STEP(mvm
->trans
->hw_rev
) <<
164 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP
;
165 reg_val
|= CSR_HW_REV_DASH(mvm
->trans
->hw_rev
) <<
166 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH
;
168 /* radio configuration */
169 reg_val
|= radio_cfg_type
<< CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE
;
170 reg_val
|= radio_cfg_step
<< CSR_HW_IF_CONFIG_REG_POS_PHY_STEP
;
171 reg_val
|= radio_cfg_dash
<< CSR_HW_IF_CONFIG_REG_POS_PHY_DASH
;
173 WARN_ON((radio_cfg_type
<< CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE
) &
174 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE
);
177 reg_val
|= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
;
178 reg_val
|= CSR_HW_IF_CONFIG_REG_BIT_MAC_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 iwl_set_bits_mask_prph(mvm
->trans
, APMG_PS_CTRL_REG
,
199 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
200 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
203 struct iwl_rx_handlers
{
206 int (*fn
)(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
207 struct iwl_device_cmd
*cmd
);
210 #define RX_HANDLER(_cmd_id, _fn, _async) \
211 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
214 * Handlers for fw notifications
215 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
216 * This list should be in order of frequency for performance purposes.
218 * The handler can be SYNC - this means that it will be called in the Rx path
219 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
220 * only in this case!), it should be set as ASYNC. In that case, it will be
221 * called from a worker with mvm->mutex held.
223 static const struct iwl_rx_handlers iwl_mvm_rx_handlers
[] = {
224 RX_HANDLER(REPLY_RX_MPDU_CMD
, iwl_mvm_rx_rx_mpdu
, false),
225 RX_HANDLER(REPLY_RX_PHY_CMD
, iwl_mvm_rx_rx_phy_cmd
, false),
226 RX_HANDLER(TX_CMD
, iwl_mvm_rx_tx_cmd
, false),
227 RX_HANDLER(BA_NOTIF
, iwl_mvm_rx_ba_notif
, false),
228 RX_HANDLER(TIME_EVENT_NOTIFICATION
, iwl_mvm_rx_time_event_notif
, false),
230 RX_HANDLER(SCAN_REQUEST_CMD
, iwl_mvm_rx_scan_response
, false),
231 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION
, iwl_mvm_rx_scan_complete
, false),
233 RX_HANDLER(BT_PROFILE_NOTIFICATION
, iwl_mvm_rx_bt_coex_notif
, true),
235 RX_HANDLER(RADIO_VERSION_NOTIFICATION
, iwl_mvm_rx_radio_ver
, false),
236 RX_HANDLER(CARD_STATE_NOTIFICATION
, iwl_mvm_rx_card_state_notif
, false),
238 RX_HANDLER(REPLY_ERROR
, iwl_mvm_rx_fw_error
, false),
241 #define CMD(x) [x] = #x
243 static const char *iwl_mvm_cmd_strings
[REPLY_MAX
] = {
246 CMD(INIT_COMPLETE_NOTIF
),
247 CMD(PHY_CONTEXT_CMD
),
251 CMD(MAC_CONTEXT_CMD
),
253 CMD(TIME_EVENT_NOTIFICATION
),
254 CMD(BINDING_CONTEXT_CMD
),
256 CMD(RADIO_VERSION_NOTIFICATION
),
257 CMD(SCAN_REQUEST_CMD
),
259 CMD(SCAN_START_NOTIFICATION
),
260 CMD(SCAN_RESULTS_NOTIFICATION
),
261 CMD(SCAN_COMPLETE_NOTIFICATION
),
263 CMD(PHY_CONFIGURATION_CMD
),
264 CMD(CALIB_RES_NOTIF_PHY_DB
),
265 CMD(SET_CALIB_DEFAULT_CMD
),
266 CMD(CALIBRATION_COMPLETE_NOTIFICATION
),
270 CMD(SCAN_OFFLOAD_CONFIG_CMD
),
271 CMD(SCAN_OFFLOAD_REQUEST_CMD
),
272 CMD(SCAN_OFFLOAD_ABORT_CMD
),
273 CMD(SCAN_OFFLOAD_COMPLETE
),
274 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD
),
275 CMD(POWER_TABLE_CMD
),
277 CMD(REPLY_RX_PHY_CMD
),
278 CMD(REPLY_RX_MPDU_CMD
),
279 CMD(BEACON_TEMPLATE_CMD
),
280 CMD(STATISTICS_NOTIFICATION
),
281 CMD(TX_ANT_CONFIGURATION_CMD
),
283 CMD(PROT_OFFLOAD_CONFIG_CMD
),
284 CMD(OFFLOADS_QUERY_CMD
),
285 CMD(REMOTE_WAKE_CONFIG_CMD
),
286 CMD(WOWLAN_PATTERNS
),
287 CMD(WOWLAN_CONFIGURATION
),
288 CMD(WOWLAN_TSC_RSC_PARAM
),
289 CMD(WOWLAN_TKIP_PARAM
),
290 CMD(WOWLAN_KEK_KCK_MATERIAL
),
291 CMD(WOWLAN_GET_STATUSES
),
292 CMD(WOWLAN_TX_POWER_PER_DB
),
293 CMD(NET_DETECT_CONFIG_CMD
),
294 CMD(NET_DETECT_PROFILES_QUERY_CMD
),
295 CMD(NET_DETECT_PROFILES_CMD
),
296 CMD(NET_DETECT_HOTSPOTS_CMD
),
297 CMD(NET_DETECT_HOTSPOTS_QUERY_CMD
),
298 CMD(CARD_STATE_NOTIFICATION
),
299 CMD(BT_COEX_PRIO_TABLE
),
300 CMD(BT_COEX_PROT_ENV
),
301 CMD(BT_PROFILE_NOTIFICATION
),
306 /* this forward declaration can avoid to export the function */
307 static void iwl_mvm_async_handlers_wk(struct work_struct
*wk
);
309 static struct iwl_op_mode
*
310 iwl_op_mode_mvm_start(struct iwl_trans
*trans
, const struct iwl_cfg
*cfg
,
311 const struct iwl_fw
*fw
, struct dentry
*dbgfs_dir
)
313 struct ieee80211_hw
*hw
;
314 struct iwl_op_mode
*op_mode
;
316 struct iwl_trans_config trans_cfg
= {};
317 static const u8 no_reclaim_cmds
[] = {
322 switch (cfg
->device_family
) {
323 case IWL_DEVICE_FAMILY_6030
:
324 case IWL_DEVICE_FAMILY_6005
:
325 case IWL_DEVICE_FAMILY_7000
:
328 IWL_ERR(trans
, "Trying to load mvm on an unsupported device\n");
332 /********************************
333 * 1. Allocating and configuring HW data
334 ********************************/
335 hw
= ieee80211_alloc_hw(sizeof(struct iwl_op_mode
) +
336 sizeof(struct iwl_mvm
),
342 op_mode
->ops
= &iwl_mvm_ops
;
343 op_mode
->trans
= trans
;
345 mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
346 mvm
->dev
= trans
->dev
;
352 mutex_init(&mvm
->mutex
);
353 spin_lock_init(&mvm
->async_handlers_lock
);
354 INIT_LIST_HEAD(&mvm
->time_event_list
);
355 INIT_LIST_HEAD(&mvm
->async_handlers_list
);
356 spin_lock_init(&mvm
->time_event_lock
);
358 INIT_WORK(&mvm
->async_handlers_wk
, iwl_mvm_async_handlers_wk
);
359 INIT_WORK(&mvm
->roc_done_wk
, iwl_mvm_roc_done_wk
);
360 INIT_WORK(&mvm
->sta_drained_wk
, iwl_mvm_sta_drained_wk
);
362 SET_IEEE80211_DEV(mvm
->hw
, mvm
->trans
->dev
);
365 * Populate the state variables that the transport layer needs
368 trans_cfg
.op_mode
= op_mode
;
369 trans_cfg
.no_reclaim_cmds
= no_reclaim_cmds
;
370 trans_cfg
.n_no_reclaim_cmds
= ARRAY_SIZE(no_reclaim_cmds
);
371 trans_cfg
.rx_buf_size_8k
= iwlwifi_mod_params
.amsdu_size_8K
;
373 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_DW_BC_TABLE
)
374 trans_cfg
.bc_table_dword
= true;
376 if (!iwlwifi_mod_params
.wd_disable
)
377 trans_cfg
.queue_watchdog_timeout
= cfg
->base_params
->wd_timeout
;
379 trans_cfg
.queue_watchdog_timeout
= IWL_WATCHDOG_DISABLED
;
381 trans_cfg
.command_names
= iwl_mvm_cmd_strings
;
383 trans_cfg
.cmd_queue
= IWL_MVM_CMD_QUEUE
;
384 trans_cfg
.cmd_fifo
= IWL_MVM_CMD_FIFO
;
386 snprintf(mvm
->hw
->wiphy
->fw_version
,
387 sizeof(mvm
->hw
->wiphy
->fw_version
),
388 "%s", fw
->fw_version
);
390 /* Configure transport layer */
391 iwl_trans_configure(mvm
->trans
, &trans_cfg
);
393 trans
->rx_mpdu_cmd
= REPLY_RX_MPDU_CMD
;
394 trans
->rx_mpdu_cmd_hdr_size
= sizeof(struct iwl_rx_mpdu_res_start
);
396 /* set up notification wait support */
397 iwl_notification_wait_init(&mvm
->notif_wait
);
400 mvm
->phy_db
= iwl_phy_db_init(trans
);
402 IWL_ERR(mvm
, "Cannot init phy_db\n");
406 IWL_INFO(mvm
, "Detected %s, REV=0x%X\n",
407 mvm
->cfg
->name
, mvm
->trans
->hw_rev
);
409 err
= iwl_trans_start_hw(mvm
->trans
);
413 mutex_lock(&mvm
->mutex
);
414 err
= iwl_run_init_mvm_ucode(mvm
, true);
415 mutex_unlock(&mvm
->mutex
);
416 if (err
&& !iwlmvm_mod_params
.init_dbg
) {
417 IWL_ERR(mvm
, "Failed to run INIT ucode: %d\n", err
);
421 /* Stop the hw after the ALIVE and NVM has been read */
422 if (!iwlmvm_mod_params
.init_dbg
)
423 iwl_trans_stop_hw(mvm
->trans
, false);
425 scan_size
= sizeof(struct iwl_scan_cmd
) +
426 mvm
->fw
->ucode_capa
.max_probe_length
+
427 (MAX_NUM_SCAN_CHANNELS
* sizeof(struct iwl_scan_channel
));
428 mvm
->scan_cmd
= kmalloc(scan_size
, GFP_KERNEL
);
432 err
= iwl_mvm_mac_setup_register(mvm
);
436 err
= iwl_mvm_dbgfs_register(mvm
, dbgfs_dir
);
443 ieee80211_unregister_hw(mvm
->hw
);
445 iwl_phy_db_free(mvm
->phy_db
);
446 kfree(mvm
->scan_cmd
);
447 kfree(mvm
->eeprom_blob
);
448 iwl_trans_stop_hw(trans
, true);
449 ieee80211_free_hw(mvm
->hw
);
453 static void iwl_op_mode_mvm_stop(struct iwl_op_mode
*op_mode
)
455 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
458 iwl_mvm_leds_exit(mvm
);
460 ieee80211_unregister_hw(mvm
->hw
);
462 kfree(mvm
->scan_cmd
);
464 iwl_trans_stop_hw(mvm
->trans
, true);
466 iwl_phy_db_free(mvm
->phy_db
);
469 kfree(mvm
->eeprom_blob
);
470 iwl_free_nvm_data(mvm
->nvm_data
);
471 for (i
= 0; i
< NVM_NUM_OF_SECTIONS
; i
++)
472 kfree(mvm
->nvm_sections
[i
].data
);
474 ieee80211_free_hw(mvm
->hw
);
477 struct iwl_async_handler_entry
{
478 struct list_head list
;
479 struct iwl_rx_cmd_buffer rxb
;
480 int (*fn
)(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
481 struct iwl_device_cmd
*cmd
);
484 void iwl_mvm_async_handlers_purge(struct iwl_mvm
*mvm
)
486 struct iwl_async_handler_entry
*entry
, *tmp
;
488 spin_lock_bh(&mvm
->async_handlers_lock
);
489 list_for_each_entry_safe(entry
, tmp
, &mvm
->async_handlers_list
, list
) {
490 iwl_free_rxb(&entry
->rxb
);
491 list_del(&entry
->list
);
494 spin_unlock_bh(&mvm
->async_handlers_lock
);
497 static void iwl_mvm_async_handlers_wk(struct work_struct
*wk
)
499 struct iwl_mvm
*mvm
=
500 container_of(wk
, struct iwl_mvm
, async_handlers_wk
);
501 struct iwl_async_handler_entry
*entry
, *tmp
;
502 struct list_head local_list
;
504 INIT_LIST_HEAD(&local_list
);
506 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
507 mutex_lock(&mvm
->mutex
);
510 * Sync with Rx path with a lock. Remove all the entries from this list,
511 * add them to a local one (lock free), and then handle them.
513 spin_lock_bh(&mvm
->async_handlers_lock
);
514 list_splice_init(&mvm
->async_handlers_list
, &local_list
);
515 spin_unlock_bh(&mvm
->async_handlers_lock
);
517 list_for_each_entry_safe(entry
, tmp
, &local_list
, list
) {
518 if (entry
->fn(mvm
, &entry
->rxb
, NULL
))
520 "returned value from ASYNC handlers are ignored\n");
521 iwl_free_rxb(&entry
->rxb
);
522 list_del(&entry
->list
);
525 mutex_unlock(&mvm
->mutex
);
528 static int iwl_mvm_rx_dispatch(struct iwl_op_mode
*op_mode
,
529 struct iwl_rx_cmd_buffer
*rxb
,
530 struct iwl_device_cmd
*cmd
)
532 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
533 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
537 * Do the notification wait before RX handlers so
538 * even if the RX handler consumes the RXB we have
539 * access to it in the notification wait entry.
541 iwl_notification_wait_notify(&mvm
->notif_wait
, pkt
);
543 for (i
= 0; i
< ARRAY_SIZE(iwl_mvm_rx_handlers
); i
++) {
544 const struct iwl_rx_handlers
*rx_h
= &iwl_mvm_rx_handlers
[i
];
545 struct iwl_async_handler_entry
*entry
;
547 if (rx_h
->cmd_id
!= pkt
->hdr
.cmd
)
551 return rx_h
->fn(mvm
, rxb
, cmd
);
553 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
554 /* we can't do much... */
558 entry
->rxb
._page
= rxb_steal_page(rxb
);
559 entry
->rxb
._offset
= rxb
->_offset
;
560 entry
->rxb
._rx_page_order
= rxb
->_rx_page_order
;
561 entry
->fn
= rx_h
->fn
;
562 spin_lock(&mvm
->async_handlers_lock
);
563 list_add_tail(&entry
->list
, &mvm
->async_handlers_list
);
564 spin_unlock(&mvm
->async_handlers_lock
);
565 schedule_work(&mvm
->async_handlers_wk
);
572 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
574 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
575 int mq
= mvm
->queue_to_mac80211
[queue
];
577 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
580 if (atomic_inc_return(&mvm
->queue_stop_count
[mq
]) > 1) {
581 IWL_DEBUG_TX_QUEUES(mvm
,
582 "queue %d (mac80211 %d) already stopped\n",
587 set_bit(mq
, &mvm
->transport_queue_stop
);
588 ieee80211_stop_queue(mvm
->hw
, mq
);
591 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
593 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
594 int mq
= mvm
->queue_to_mac80211
[queue
];
596 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
599 if (atomic_dec_return(&mvm
->queue_stop_count
[mq
]) > 0) {
600 IWL_DEBUG_TX_QUEUES(mvm
,
601 "queue %d (mac80211 %d) already awake\n",
606 clear_bit(mq
, &mvm
->transport_queue_stop
);
608 ieee80211_wake_queue(mvm
->hw
, mq
);
611 static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode
*op_mode
, bool state
)
613 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
616 set_bit(IWL_MVM_STATUS_HW_RFKILL
, &mvm
->status
);
618 clear_bit(IWL_MVM_STATUS_HW_RFKILL
, &mvm
->status
);
620 wiphy_rfkill_set_hw_state(mvm
->hw
->wiphy
, state
);
623 static void iwl_mvm_free_skb(struct iwl_op_mode
*op_mode
, struct sk_buff
*skb
)
625 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
626 struct ieee80211_tx_info
*info
;
628 info
= IEEE80211_SKB_CB(skb
);
629 iwl_trans_free_tx_cmd(mvm
->trans
, info
->driver_data
[1]);
630 ieee80211_free_txskb(mvm
->hw
, skb
);
633 static void iwl_mvm_nic_restart(struct iwl_mvm
*mvm
)
635 iwl_abort_notification_waits(&mvm
->notif_wait
);
638 * If we're restarting already, don't cycle restarts.
639 * If INIT fw asserted, it will likely fail again.
640 * If WoWLAN fw asserted, don't restart either, mac80211
641 * can't recover this since we're already half suspended.
643 if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
644 IWL_ERR(mvm
, "Firmware error during reconfiguration! Abort.\n");
645 } else if (mvm
->cur_ucode
== IWL_UCODE_REGULAR
&&
646 iwlwifi_mod_params
.restart_fw
) {
648 * This is a bit racy, but worst case we tell mac80211 about
649 * a stopped/aborted (sched) scan when that was already done
650 * which is not a problem. It is necessary to abort any scan
651 * here because mac80211 requires having the scan cleared
653 * We'll reset the scan_status to NONE in restart cleanup in
654 * the next start() call from mac80211.
656 switch (mvm
->scan_status
) {
657 case IWL_MVM_SCAN_NONE
:
659 case IWL_MVM_SCAN_OS
:
660 ieee80211_scan_completed(mvm
->hw
, true);
664 ieee80211_restart_hw(mvm
->hw
);
668 static void iwl_mvm_nic_error(struct iwl_op_mode
*op_mode
)
670 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
672 iwl_mvm_dump_nic_error_log(mvm
);
674 iwl_mvm_nic_restart(mvm
);
677 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode
*op_mode
)
679 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
682 iwl_mvm_nic_restart(mvm
);
685 static const struct iwl_op_mode_ops iwl_mvm_ops
= {
686 .start
= iwl_op_mode_mvm_start
,
687 .stop
= iwl_op_mode_mvm_stop
,
688 .rx
= iwl_mvm_rx_dispatch
,
689 .queue_full
= iwl_mvm_stop_sw_queue
,
690 .queue_not_full
= iwl_mvm_wake_sw_queue
,
691 .hw_rf_kill
= iwl_mvm_set_hw_rfkill_state
,
692 .free_skb
= iwl_mvm_free_skb
,
693 .nic_error
= iwl_mvm_nic_error
,
694 .cmd_queue_full
= iwl_mvm_cmd_queue_full
,
695 .nic_config
= iwl_mvm_nic_config
,