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.
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 - 2014 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 <linux/vmalloc.h>
65 #include <net/mac80211.h>
67 #include "iwl-notif-wait.h"
68 #include "iwl-trans.h"
69 #include "iwl-op-mode.h"
71 #include "iwl-debug.h"
73 #include "iwl-modparams.h"
75 #include "iwl-phy-db.h"
76 #include "iwl-eeprom-parse.h"
81 #include "fw-api-scan.h"
82 #include "time-event.h"
83 #include "iwl-fw-error-dump.h"
86 * module name, copyright, version, etc.
88 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
90 #define DRV_VERSION IWLWIFI_VERSION
92 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
93 MODULE_VERSION(DRV_VERSION
);
94 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
95 MODULE_LICENSE("GPL");
97 static const struct iwl_op_mode_ops iwl_mvm_ops
;
99 struct iwl_mvm_mod_params iwlmvm_mod_params
= {
100 .power_scheme
= IWL_POWER_SCHEME_BPS
,
101 /* rest of fields are 0 by default */
104 module_param_named(init_dbg
, iwlmvm_mod_params
.init_dbg
, bool, S_IRUGO
);
105 MODULE_PARM_DESC(init_dbg
,
106 "set to true to debug an ASSERT in INIT fw (default: false");
107 module_param_named(power_scheme
, iwlmvm_mod_params
.power_scheme
, int, S_IRUGO
);
108 MODULE_PARM_DESC(power_scheme
,
109 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
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
;
148 radio_cfg_type
= (mvm
->fw
->phy_config
& FW_PHY_CFG_RADIO_TYPE
) >>
149 FW_PHY_CFG_RADIO_TYPE_POS
;
150 radio_cfg_step
= (mvm
->fw
->phy_config
& FW_PHY_CFG_RADIO_STEP
) >>
151 FW_PHY_CFG_RADIO_STEP_POS
;
152 radio_cfg_dash
= (mvm
->fw
->phy_config
& FW_PHY_CFG_RADIO_DASH
) >>
153 FW_PHY_CFG_RADIO_DASH_POS
;
156 reg_val
|= CSR_HW_REV_STEP(mvm
->trans
->hw_rev
) <<
157 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP
;
158 reg_val
|= CSR_HW_REV_DASH(mvm
->trans
->hw_rev
) <<
159 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH
;
161 /* radio configuration */
162 reg_val
|= radio_cfg_type
<< CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE
;
163 reg_val
|= radio_cfg_step
<< CSR_HW_IF_CONFIG_REG_POS_PHY_STEP
;
164 reg_val
|= radio_cfg_dash
<< CSR_HW_IF_CONFIG_REG_POS_PHY_DASH
;
166 WARN_ON((radio_cfg_type
<< CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE
) &
167 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE
);
170 reg_val
|= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
;
172 iwl_trans_set_bits_mask(mvm
->trans
, CSR_HW_IF_CONFIG_REG
,
173 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH
|
174 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP
|
175 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE
|
176 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP
|
177 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH
|
178 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
|
179 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI
,
182 IWL_DEBUG_INFO(mvm
, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type
,
183 radio_cfg_step
, radio_cfg_dash
);
186 * W/A : NIC is stuck in a reset state after Early PCIe power off
187 * (PCIe power is lost before PERST# is asserted), causing ME FW
188 * to lose ownership and not being able to obtain it back.
190 if (mvm
->trans
->cfg
->device_family
!= IWL_DEVICE_FAMILY_8000
)
191 iwl_set_bits_mask_prph(mvm
->trans
, APMG_PS_CTRL_REG
,
192 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
193 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
196 struct iwl_rx_handlers
{
199 int (*fn
)(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
200 struct iwl_device_cmd
*cmd
);
203 #define RX_HANDLER(_cmd_id, _fn, _async) \
204 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
207 * Handlers for fw notifications
208 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
209 * This list should be in order of frequency for performance purposes.
211 * The handler can be SYNC - this means that it will be called in the Rx path
212 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
213 * only in this case!), it should be set as ASYNC. In that case, it will be
214 * called from a worker with mvm->mutex held.
216 static const struct iwl_rx_handlers iwl_mvm_rx_handlers
[] = {
217 RX_HANDLER(REPLY_RX_MPDU_CMD
, iwl_mvm_rx_rx_mpdu
, false),
218 RX_HANDLER(REPLY_RX_PHY_CMD
, iwl_mvm_rx_rx_phy_cmd
, false),
219 RX_HANDLER(TX_CMD
, iwl_mvm_rx_tx_cmd
, false),
220 RX_HANDLER(BA_NOTIF
, iwl_mvm_rx_ba_notif
, false),
222 RX_HANDLER(BT_PROFILE_NOTIFICATION
, iwl_mvm_rx_bt_coex_notif
, true),
223 RX_HANDLER(BEACON_NOTIFICATION
, iwl_mvm_rx_beacon_notif
, true),
224 RX_HANDLER(STATISTICS_NOTIFICATION
, iwl_mvm_rx_statistics
, true),
225 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION
,
226 iwl_mvm_rx_ant_coupling_notif
, true),
228 RX_HANDLER(TIME_EVENT_NOTIFICATION
, iwl_mvm_rx_time_event_notif
, false),
230 RX_HANDLER(EOSP_NOTIFICATION
, iwl_mvm_rx_eosp_notif
, false),
232 RX_HANDLER(SCAN_REQUEST_CMD
, iwl_mvm_rx_scan_response
, false),
233 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION
, iwl_mvm_rx_scan_complete
, true),
234 RX_HANDLER(SCAN_OFFLOAD_COMPLETE
,
235 iwl_mvm_rx_scan_offload_complete_notif
, true),
236 RX_HANDLER(MATCH_FOUND_NOTIFICATION
, iwl_mvm_rx_sched_scan_results
,
239 RX_HANDLER(RADIO_VERSION_NOTIFICATION
, iwl_mvm_rx_radio_ver
, false),
240 RX_HANDLER(CARD_STATE_NOTIFICATION
, iwl_mvm_rx_card_state_notif
, false),
242 RX_HANDLER(MISSED_BEACONS_NOTIFICATION
, iwl_mvm_rx_missed_beacons_notif
,
245 RX_HANDLER(REPLY_ERROR
, iwl_mvm_rx_fw_error
, false),
246 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION
,
247 iwl_mvm_power_uapsd_misbehaving_ap_notif
, false),
250 #define CMD(x) [x] = #x
252 static const char *const iwl_mvm_cmd_strings
[REPLY_MAX
] = {
255 CMD(INIT_COMPLETE_NOTIF
),
256 CMD(PHY_CONTEXT_CMD
),
260 CMD(MAC_CONTEXT_CMD
),
262 CMD(TIME_EVENT_NOTIFICATION
),
263 CMD(BINDING_CONTEXT_CMD
),
265 CMD(NON_QOS_TX_COUNTER_CMD
),
266 CMD(RADIO_VERSION_NOTIFICATION
),
267 CMD(SCAN_REQUEST_CMD
),
269 CMD(SCAN_START_NOTIFICATION
),
270 CMD(SCAN_RESULTS_NOTIFICATION
),
271 CMD(SCAN_COMPLETE_NOTIFICATION
),
273 CMD(PHY_CONFIGURATION_CMD
),
274 CMD(CALIB_RES_NOTIF_PHY_DB
),
275 CMD(SET_CALIB_DEFAULT_CMD
),
276 CMD(CALIBRATION_COMPLETE_NOTIFICATION
),
281 CMD(SCAN_OFFLOAD_CONFIG_CMD
),
282 CMD(MATCH_FOUND_NOTIFICATION
),
283 CMD(SCAN_OFFLOAD_REQUEST_CMD
),
284 CMD(SCAN_OFFLOAD_ABORT_CMD
),
285 CMD(SCAN_OFFLOAD_COMPLETE
),
286 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD
),
287 CMD(POWER_TABLE_CMD
),
289 CMD(REPLY_RX_PHY_CMD
),
290 CMD(REPLY_RX_MPDU_CMD
),
291 CMD(BEACON_NOTIFICATION
),
292 CMD(BEACON_TEMPLATE_CMD
),
293 CMD(STATISTICS_NOTIFICATION
),
294 CMD(EOSP_NOTIFICATION
),
295 CMD(REDUCE_TX_POWER_CMD
),
296 CMD(TX_ANT_CONFIGURATION_CMD
),
299 CMD(PROT_OFFLOAD_CONFIG_CMD
),
300 CMD(OFFLOADS_QUERY_CMD
),
301 CMD(REMOTE_WAKE_CONFIG_CMD
),
302 CMD(WOWLAN_PATTERNS
),
303 CMD(WOWLAN_CONFIGURATION
),
304 CMD(WOWLAN_TSC_RSC_PARAM
),
305 CMD(WOWLAN_TKIP_PARAM
),
306 CMD(WOWLAN_KEK_KCK_MATERIAL
),
307 CMD(WOWLAN_GET_STATUSES
),
308 CMD(WOWLAN_TX_POWER_PER_DB
),
309 CMD(NET_DETECT_CONFIG_CMD
),
310 CMD(NET_DETECT_PROFILES_QUERY_CMD
),
311 CMD(NET_DETECT_PROFILES_CMD
),
312 CMD(NET_DETECT_HOTSPOTS_CMD
),
313 CMD(NET_DETECT_HOTSPOTS_QUERY_CMD
),
314 CMD(CARD_STATE_NOTIFICATION
),
315 CMD(MISSED_BEACONS_NOTIFICATION
),
316 CMD(BT_COEX_PRIO_TABLE
),
317 CMD(BT_COEX_PROT_ENV
),
318 CMD(BT_PROFILE_NOTIFICATION
),
320 CMD(MCAST_FILTER_CMD
),
321 CMD(BCAST_FILTER_CMD
),
322 CMD(REPLY_SF_CFG_CMD
),
323 CMD(REPLY_BEACON_FILTERING_CMD
),
324 CMD(REPLY_THERMAL_MNG_BACKOFF
),
325 CMD(MAC_PM_POWER_TABLE
),
327 CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION
),
328 CMD(ANTENNA_COUPLING_NOTIFICATION
),
332 /* this forward declaration can avoid to export the function */
333 static void iwl_mvm_async_handlers_wk(struct work_struct
*wk
);
334 static void iwl_mvm_d0i3_exit_work(struct work_struct
*wk
);
336 static u32
calc_min_backoff(struct iwl_trans
*trans
, const struct iwl_cfg
*cfg
)
338 const struct iwl_pwr_tx_backoff
*pwr_tx_backoff
= cfg
->pwr_tx_backoffs
;
343 while (pwr_tx_backoff
->pwr
) {
344 if (trans
->dflt_pwr_limit
>= pwr_tx_backoff
->pwr
)
345 return pwr_tx_backoff
->backoff
;
353 static struct iwl_op_mode
*
354 iwl_op_mode_mvm_start(struct iwl_trans
*trans
, const struct iwl_cfg
*cfg
,
355 const struct iwl_fw
*fw
, struct dentry
*dbgfs_dir
)
357 struct ieee80211_hw
*hw
;
358 struct iwl_op_mode
*op_mode
;
360 struct iwl_trans_config trans_cfg
= {};
361 static const u8 no_reclaim_cmds
[] = {
368 * We use IWL_MVM_STATION_COUNT to check the validity of the station
369 * index all over the driver - check that its value corresponds to the
372 BUILD_BUG_ON(ARRAY_SIZE(mvm
->fw_id_to_mac_id
) != IWL_MVM_STATION_COUNT
);
374 /********************************
375 * 1. Allocating and configuring HW data
376 ********************************/
377 hw
= ieee80211_alloc_hw(sizeof(struct iwl_op_mode
) +
378 sizeof(struct iwl_mvm
),
384 op_mode
->ops
= &iwl_mvm_ops
;
386 mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
387 mvm
->dev
= trans
->dev
;
393 mvm
->restart_fw
= iwlwifi_mod_params
.restart_fw
? -1 : 0;
396 mvm
->first_agg_queue
= 16;
397 mvm
->last_agg_queue
= mvm
->cfg
->base_params
->num_of_queues
- 1;
398 if (mvm
->cfg
->base_params
->num_of_queues
== 16) {
400 mvm
->first_agg_queue
= 12;
402 mvm
->sf_state
= SF_UNINIT
;
404 mutex_init(&mvm
->mutex
);
405 mutex_init(&mvm
->d0i3_suspend_mutex
);
406 spin_lock_init(&mvm
->async_handlers_lock
);
407 INIT_LIST_HEAD(&mvm
->time_event_list
);
408 INIT_LIST_HEAD(&mvm
->async_handlers_list
);
409 spin_lock_init(&mvm
->time_event_lock
);
411 INIT_WORK(&mvm
->async_handlers_wk
, iwl_mvm_async_handlers_wk
);
412 INIT_WORK(&mvm
->roc_done_wk
, iwl_mvm_roc_done_wk
);
413 INIT_WORK(&mvm
->sta_drained_wk
, iwl_mvm_sta_drained_wk
);
414 INIT_WORK(&mvm
->d0i3_exit_work
, iwl_mvm_d0i3_exit_work
);
416 spin_lock_init(&mvm
->d0i3_tx_lock
);
417 skb_queue_head_init(&mvm
->d0i3_tx
);
418 init_waitqueue_head(&mvm
->d0i3_exit_waitq
);
420 SET_IEEE80211_DEV(mvm
->hw
, mvm
->trans
->dev
);
423 * Populate the state variables that the transport layer needs
426 trans_cfg
.op_mode
= op_mode
;
427 trans_cfg
.no_reclaim_cmds
= no_reclaim_cmds
;
428 trans_cfg
.n_no_reclaim_cmds
= ARRAY_SIZE(no_reclaim_cmds
);
429 trans_cfg
.rx_buf_size_8k
= iwlwifi_mod_params
.amsdu_size_8K
;
431 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_DW_BC_TABLE
)
432 trans_cfg
.bc_table_dword
= true;
434 if (!iwlwifi_mod_params
.wd_disable
)
435 trans_cfg
.queue_watchdog_timeout
= cfg
->base_params
->wd_timeout
;
437 trans_cfg
.queue_watchdog_timeout
= IWL_WATCHDOG_DISABLED
;
439 trans_cfg
.command_names
= iwl_mvm_cmd_strings
;
441 trans_cfg
.cmd_queue
= IWL_MVM_CMD_QUEUE
;
442 trans_cfg
.cmd_fifo
= IWL_MVM_CMD_FIFO
;
444 snprintf(mvm
->hw
->wiphy
->fw_version
,
445 sizeof(mvm
->hw
->wiphy
->fw_version
),
446 "%s", fw
->fw_version
);
448 /* Configure transport layer */
449 iwl_trans_configure(mvm
->trans
, &trans_cfg
);
451 trans
->rx_mpdu_cmd
= REPLY_RX_MPDU_CMD
;
452 trans
->rx_mpdu_cmd_hdr_size
= sizeof(struct iwl_rx_mpdu_res_start
);
454 /* set up notification wait support */
455 iwl_notification_wait_init(&mvm
->notif_wait
);
458 mvm
->phy_db
= iwl_phy_db_init(trans
);
460 IWL_ERR(mvm
, "Cannot init phy_db\n");
464 IWL_INFO(mvm
, "Detected %s, REV=0x%X\n",
465 mvm
->cfg
->name
, mvm
->trans
->hw_rev
);
467 min_backoff
= calc_min_backoff(trans
, cfg
);
468 iwl_mvm_tt_initialize(mvm
, min_backoff
);
469 /* set the nvm_file_name according to priority */
470 if (iwlwifi_mod_params
.nvm_file
)
471 mvm
->nvm_file_name
= iwlwifi_mod_params
.nvm_file
;
473 mvm
->nvm_file_name
= mvm
->cfg
->default_nvm_file
;
475 if (WARN(cfg
->no_power_up_nic_in_init
&& !mvm
->nvm_file_name
,
476 "not allowing power-up and not having nvm_file\n"))
480 * Even if nvm exists in the nvm_file driver should read agin the nvm
481 * from the nic because there might be entries that exist in the OTP
482 * and not in the file.
483 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
485 if (cfg
->no_power_up_nic_in_init
&& mvm
->nvm_file_name
) {
486 err
= iwl_nvm_init(mvm
, false);
490 err
= iwl_trans_start_hw(mvm
->trans
);
494 mutex_lock(&mvm
->mutex
);
495 err
= iwl_run_init_mvm_ucode(mvm
, true);
496 iwl_trans_stop_device(trans
);
497 mutex_unlock(&mvm
->mutex
);
498 /* returns 0 if successful, 1 if success but in rfkill */
499 if (err
< 0 && !iwlmvm_mod_params
.init_dbg
) {
500 IWL_ERR(mvm
, "Failed to run INIT ucode: %d\n", err
);
505 scan_size
= sizeof(struct iwl_scan_cmd
) +
506 mvm
->fw
->ucode_capa
.max_probe_length
+
507 (MAX_NUM_SCAN_CHANNELS
* sizeof(struct iwl_scan_channel
));
508 mvm
->scan_cmd
= kmalloc(scan_size
, GFP_KERNEL
);
512 err
= iwl_mvm_mac_setup_register(mvm
);
516 err
= iwl_mvm_dbgfs_register(mvm
, dbgfs_dir
);
520 memset(&mvm
->rx_stats
, 0, sizeof(struct mvm_statistics_rx
));
522 /* rpm starts with a taken ref. only set the appropriate bit here. */
523 set_bit(IWL_MVM_REF_UCODE_DOWN
, mvm
->ref_bitmap
);
528 ieee80211_unregister_hw(mvm
->hw
);
529 iwl_mvm_leds_exit(mvm
);
531 iwl_phy_db_free(mvm
->phy_db
);
532 kfree(mvm
->scan_cmd
);
533 if (!cfg
->no_power_up_nic_in_init
|| !mvm
->nvm_file_name
)
534 iwl_trans_op_mode_leave(trans
);
535 ieee80211_free_hw(mvm
->hw
);
539 static void iwl_op_mode_mvm_stop(struct iwl_op_mode
*op_mode
)
541 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
544 iwl_mvm_leds_exit(mvm
);
546 iwl_mvm_tt_exit(mvm
);
548 ieee80211_unregister_hw(mvm
->hw
);
550 kfree(mvm
->scan_cmd
);
551 vfree(mvm
->fw_error_dump
);
552 kfree(mvm
->fw_error_sram
);
553 kfree(mvm
->fw_error_rxf
);
554 kfree(mvm
->mcast_filter_cmd
);
555 mvm
->mcast_filter_cmd
= NULL
;
557 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
558 kfree(mvm
->d3_resume_sram
);
561 iwl_trans_op_mode_leave(mvm
->trans
);
563 iwl_phy_db_free(mvm
->phy_db
);
566 iwl_free_nvm_data(mvm
->nvm_data
);
567 for (i
= 0; i
< NVM_MAX_NUM_SECTIONS
; i
++)
568 kfree(mvm
->nvm_sections
[i
].data
);
570 ieee80211_free_hw(mvm
->hw
);
573 struct iwl_async_handler_entry
{
574 struct list_head list
;
575 struct iwl_rx_cmd_buffer rxb
;
576 int (*fn
)(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
577 struct iwl_device_cmd
*cmd
);
580 void iwl_mvm_async_handlers_purge(struct iwl_mvm
*mvm
)
582 struct iwl_async_handler_entry
*entry
, *tmp
;
584 spin_lock_bh(&mvm
->async_handlers_lock
);
585 list_for_each_entry_safe(entry
, tmp
, &mvm
->async_handlers_list
, list
) {
586 iwl_free_rxb(&entry
->rxb
);
587 list_del(&entry
->list
);
590 spin_unlock_bh(&mvm
->async_handlers_lock
);
593 static void iwl_mvm_async_handlers_wk(struct work_struct
*wk
)
595 struct iwl_mvm
*mvm
=
596 container_of(wk
, struct iwl_mvm
, async_handlers_wk
);
597 struct iwl_async_handler_entry
*entry
, *tmp
;
598 struct list_head local_list
;
600 INIT_LIST_HEAD(&local_list
);
602 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
603 mutex_lock(&mvm
->mutex
);
606 * Sync with Rx path with a lock. Remove all the entries from this list,
607 * add them to a local one (lock free), and then handle them.
609 spin_lock_bh(&mvm
->async_handlers_lock
);
610 list_splice_init(&mvm
->async_handlers_list
, &local_list
);
611 spin_unlock_bh(&mvm
->async_handlers_lock
);
613 list_for_each_entry_safe(entry
, tmp
, &local_list
, list
) {
614 if (entry
->fn(mvm
, &entry
->rxb
, NULL
))
616 "returned value from ASYNC handlers are ignored\n");
617 iwl_free_rxb(&entry
->rxb
);
618 list_del(&entry
->list
);
621 mutex_unlock(&mvm
->mutex
);
624 static int iwl_mvm_rx_dispatch(struct iwl_op_mode
*op_mode
,
625 struct iwl_rx_cmd_buffer
*rxb
,
626 struct iwl_device_cmd
*cmd
)
628 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
629 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
633 * Do the notification wait before RX handlers so
634 * even if the RX handler consumes the RXB we have
635 * access to it in the notification wait entry.
637 iwl_notification_wait_notify(&mvm
->notif_wait
, pkt
);
639 for (i
= 0; i
< ARRAY_SIZE(iwl_mvm_rx_handlers
); i
++) {
640 const struct iwl_rx_handlers
*rx_h
= &iwl_mvm_rx_handlers
[i
];
641 struct iwl_async_handler_entry
*entry
;
643 if (rx_h
->cmd_id
!= pkt
->hdr
.cmd
)
647 return rx_h
->fn(mvm
, rxb
, cmd
);
649 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
650 /* we can't do much... */
654 entry
->rxb
._page
= rxb_steal_page(rxb
);
655 entry
->rxb
._offset
= rxb
->_offset
;
656 entry
->rxb
._rx_page_order
= rxb
->_rx_page_order
;
657 entry
->fn
= rx_h
->fn
;
658 spin_lock(&mvm
->async_handlers_lock
);
659 list_add_tail(&entry
->list
, &mvm
->async_handlers_list
);
660 spin_unlock(&mvm
->async_handlers_lock
);
661 schedule_work(&mvm
->async_handlers_wk
);
668 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
670 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
671 int mq
= mvm
->queue_to_mac80211
[queue
];
673 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
676 if (atomic_inc_return(&mvm
->queue_stop_count
[mq
]) > 1) {
677 IWL_DEBUG_TX_QUEUES(mvm
,
678 "queue %d (mac80211 %d) already stopped\n",
683 set_bit(mq
, &mvm
->transport_queue_stop
);
684 ieee80211_stop_queue(mvm
->hw
, mq
);
687 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
689 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
690 int mq
= mvm
->queue_to_mac80211
[queue
];
692 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
695 if (atomic_dec_return(&mvm
->queue_stop_count
[mq
]) > 0) {
696 IWL_DEBUG_TX_QUEUES(mvm
,
697 "queue %d (mac80211 %d) already awake\n",
702 clear_bit(mq
, &mvm
->transport_queue_stop
);
704 ieee80211_wake_queue(mvm
->hw
, mq
);
707 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm
*mvm
, bool state
)
710 set_bit(IWL_MVM_STATUS_HW_CTKILL
, &mvm
->status
);
712 clear_bit(IWL_MVM_STATUS_HW_CTKILL
, &mvm
->status
);
714 wiphy_rfkill_set_hw_state(mvm
->hw
->wiphy
, iwl_mvm_is_radio_killed(mvm
));
717 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode
*op_mode
, bool state
)
719 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
722 set_bit(IWL_MVM_STATUS_HW_RFKILL
, &mvm
->status
);
724 clear_bit(IWL_MVM_STATUS_HW_RFKILL
, &mvm
->status
);
726 wiphy_rfkill_set_hw_state(mvm
->hw
->wiphy
, iwl_mvm_is_radio_killed(mvm
));
728 return state
&& mvm
->cur_ucode
!= IWL_UCODE_INIT
;
731 static void iwl_mvm_free_skb(struct iwl_op_mode
*op_mode
, struct sk_buff
*skb
)
733 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
734 struct ieee80211_tx_info
*info
;
736 info
= IEEE80211_SKB_CB(skb
);
737 iwl_trans_free_tx_cmd(mvm
->trans
, info
->driver_data
[1]);
738 ieee80211_free_txskb(mvm
->hw
, skb
);
741 struct iwl_mvm_reprobe
{
743 struct work_struct work
;
746 static void iwl_mvm_reprobe_wk(struct work_struct
*wk
)
748 struct iwl_mvm_reprobe
*reprobe
;
750 reprobe
= container_of(wk
, struct iwl_mvm_reprobe
, work
);
751 if (device_reprobe(reprobe
->dev
))
752 dev_err(reprobe
->dev
, "reprobe failed!\n");
754 module_put(THIS_MODULE
);
757 static void iwl_mvm_nic_restart(struct iwl_mvm
*mvm
)
759 iwl_abort_notification_waits(&mvm
->notif_wait
);
762 * This is a bit racy, but worst case we tell mac80211 about
763 * a stopped/aborted scan when that was already done which
764 * is not a problem. It is necessary to abort any os scan
765 * here because mac80211 requires having the scan cleared
767 * We'll reset the scan_status to NONE in restart cleanup in
768 * the next start() call from mac80211. If restart isn't called
769 * (no fw restart) scan status will stay busy.
771 switch (mvm
->scan_status
) {
772 case IWL_MVM_SCAN_NONE
:
774 case IWL_MVM_SCAN_OS
:
775 ieee80211_scan_completed(mvm
->hw
, true);
777 case IWL_MVM_SCAN_SCHED
:
778 /* Sched scan will be restarted by mac80211 in restart_hw. */
779 if (!mvm
->restart_fw
)
780 ieee80211_sched_scan_stopped(mvm
->hw
);
785 * If we're restarting already, don't cycle restarts.
786 * If INIT fw asserted, it will likely fail again.
787 * If WoWLAN fw asserted, don't restart either, mac80211
788 * can't recover this since we're already half suspended.
790 if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
791 struct iwl_mvm_reprobe
*reprobe
;
794 "Firmware error during reconfiguration - reprobe!\n");
797 * get a module reference to avoid doing this while unloading
798 * anyway and to avoid scheduling a work with code that's
801 if (!try_module_get(THIS_MODULE
)) {
802 IWL_ERR(mvm
, "Module is being unloaded - abort\n");
806 reprobe
= kzalloc(sizeof(*reprobe
), GFP_ATOMIC
);
808 module_put(THIS_MODULE
);
811 reprobe
->dev
= mvm
->trans
->dev
;
812 INIT_WORK(&reprobe
->work
, iwl_mvm_reprobe_wk
);
813 schedule_work(&reprobe
->work
);
814 } else if (mvm
->cur_ucode
== IWL_UCODE_REGULAR
&& mvm
->restart_fw
) {
815 /* don't let the transport/FW power down */
816 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
818 if (mvm
->restart_fw
> 0)
820 ieee80211_restart_hw(mvm
->hw
);
824 #ifdef CONFIG_IWLWIFI_DEBUGFS
825 void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
827 struct iwl_fw_error_dump_file
*dump_file
;
828 struct iwl_fw_error_dump_data
*dump_data
;
832 lockdep_assert_held(&mvm
->mutex
);
834 if (mvm
->fw_error_dump
)
837 file_len
= mvm
->fw_error_sram_len
+
838 mvm
->fw_error_rxf_len
+
840 sizeof(*dump_data
) * 2;
842 trans_len
= iwl_trans_dump_data(mvm
->trans
, NULL
, 0);
844 file_len
+= trans_len
;
846 dump_file
= vmalloc(file_len
);
850 mvm
->fw_error_dump
= dump_file
;
852 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
853 dump_file
->file_len
= cpu_to_le32(file_len
);
854 dump_data
= (void *)dump_file
->data
;
855 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
856 dump_data
->len
= cpu_to_le32(mvm
->fw_error_rxf_len
);
857 memcpy(dump_data
->data
, mvm
->fw_error_rxf
, mvm
->fw_error_rxf_len
);
859 dump_data
= iwl_mvm_fw_error_next_data(dump_data
);
860 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
861 dump_data
->len
= cpu_to_le32(mvm
->fw_error_sram_len
);
864 * No need for lock since at the stage the FW isn't loaded. So it
865 * can't assert - we are the only one who can possibly be accessing
866 * mvm->fw_error_sram right now.
868 memcpy(dump_data
->data
, mvm
->fw_error_sram
, mvm
->fw_error_sram_len
);
870 kfree(mvm
->fw_error_rxf
);
871 mvm
->fw_error_rxf
= NULL
;
872 mvm
->fw_error_rxf_len
= 0;
874 kfree(mvm
->fw_error_sram
);
875 mvm
->fw_error_sram
= NULL
;
876 mvm
->fw_error_sram_len
= 0;
879 void *buf
= iwl_mvm_fw_error_next_data(dump_data
);
880 u32 real_trans_len
= iwl_trans_dump_data(mvm
->trans
, buf
,
882 dump_data
= (void *)((u8
*)buf
+ real_trans_len
);
883 dump_file
->file_len
=
884 cpu_to_le32(file_len
- trans_len
+ real_trans_len
);
889 static void iwl_mvm_nic_error(struct iwl_op_mode
*op_mode
)
891 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
893 iwl_mvm_dump_nic_error_log(mvm
);
895 #ifdef CONFIG_IWLWIFI_DEBUGFS
896 iwl_mvm_fw_error_sram_dump(mvm
);
897 iwl_mvm_fw_error_rxf_dump(mvm
);
900 iwl_mvm_nic_restart(mvm
);
903 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode
*op_mode
)
905 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
908 iwl_mvm_nic_restart(mvm
);
911 struct iwl_d0i3_iter_data
{
916 bool disable_offloading
;
919 static bool iwl_mvm_disallow_offloading(struct iwl_mvm
*mvm
,
920 struct ieee80211_vif
*vif
,
921 struct iwl_d0i3_iter_data
*iter_data
)
923 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
924 struct ieee80211_sta
*ap_sta
;
925 struct iwl_mvm_sta
*mvmsta
;
926 u32 available_tids
= 0;
929 if (WARN_ON(vif
->type
!= NL80211_IFTYPE_STATION
||
930 mvmvif
->ap_sta_id
== IWL_MVM_STATION_COUNT
))
933 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
]);
934 if (IS_ERR_OR_NULL(ap_sta
))
937 mvmsta
= iwl_mvm_sta_from_mac80211(ap_sta
);
938 spin_lock_bh(&mvmsta
->lock
);
939 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
940 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
943 * in case of pending tx packets, don't use this tid
944 * for offloading in order to prevent reuse of the same
947 if (iwl_mvm_tid_queued(tid_data
))
950 if (tid_data
->state
!= IWL_AGG_OFF
)
953 available_tids
|= BIT(tid
);
955 spin_unlock_bh(&mvmsta
->lock
);
958 * disallow protocol offloading if we have no available tid
959 * (with no pending frames and no active aggregation,
960 * as we don't handle "holes" properly - the scheduler needs the
961 * frame's seq number and TFD index to match)
966 /* for simplicity, just use the first available tid */
967 iter_data
->offloading_tid
= ffs(available_tids
) - 1;
971 static void iwl_mvm_enter_d0i3_iterator(void *_data
, u8
*mac
,
972 struct ieee80211_vif
*vif
)
974 struct iwl_d0i3_iter_data
*data
= _data
;
975 struct iwl_mvm
*mvm
= data
->mvm
;
976 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
977 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
;
979 IWL_DEBUG_RPM(mvm
, "entering D0i3 - vif %pM\n", vif
->addr
);
980 if (vif
->type
!= NL80211_IFTYPE_STATION
||
981 !vif
->bss_conf
.assoc
)
985 * in case of pending tx packets or active aggregations,
986 * avoid offloading features in order to prevent reuse of
987 * the same qos seq counters.
989 if (iwl_mvm_disallow_offloading(mvm
, vif
, data
))
990 data
->disable_offloading
= true;
992 iwl_mvm_update_d0i3_power_mode(mvm
, vif
, true, flags
);
993 iwl_mvm_send_proto_offload(mvm
, vif
, data
->disable_offloading
, flags
);
996 * on init/association, mvm already configures POWER_TABLE_CMD
997 * and REPLY_MCAST_FILTER_CMD, so currently don't
998 * reconfigure them (we might want to use different
999 * params later on, though).
1001 data
->ap_sta_id
= mvmvif
->ap_sta_id
;
1005 static void iwl_mvm_set_wowlan_data(struct iwl_mvm
*mvm
,
1006 struct iwl_wowlan_config_cmd_v3
*cmd
,
1007 struct iwl_d0i3_iter_data
*iter_data
)
1009 struct ieee80211_sta
*ap_sta
;
1010 struct iwl_mvm_sta
*mvm_ap_sta
;
1012 if (iter_data
->ap_sta_id
== IWL_MVM_STATION_COUNT
)
1017 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[iter_data
->ap_sta_id
]);
1018 if (IS_ERR_OR_NULL(ap_sta
))
1021 mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
1022 cmd
->common
.is_11n_connection
= ap_sta
->ht_cap
.ht_supported
;
1023 cmd
->offloading_tid
= iter_data
->offloading_tid
;
1026 * The d0i3 uCode takes care of the nonqos counters,
1027 * so configure only the qos seq ones.
1029 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, &cmd
->common
);
1033 static int iwl_mvm_enter_d0i3(struct iwl_op_mode
*op_mode
)
1035 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
1036 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
;
1038 struct iwl_d0i3_iter_data d0i3_iter_data
= {
1041 struct iwl_wowlan_config_cmd_v3 wowlan_config_cmd
= {
1044 cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME
|
1045 IWL_WOWLAN_WAKEUP_BEACON_MISS
|
1046 IWL_WOWLAN_WAKEUP_LINK_CHANGE
|
1047 IWL_WOWLAN_WAKEUP_BCN_FILTERING
),
1050 struct iwl_d3_manager_config d3_cfg_cmd
= {
1051 .min_sleep_time
= cpu_to_le32(1000),
1054 IWL_DEBUG_RPM(mvm
, "MVM entering D0i3\n");
1056 /* make sure we have no running tx while configuring the qos */
1057 set_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1060 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
1061 IEEE80211_IFACE_ITER_NORMAL
,
1062 iwl_mvm_enter_d0i3_iterator
,
1064 if (d0i3_iter_data
.vif_count
== 1) {
1065 mvm
->d0i3_ap_sta_id
= d0i3_iter_data
.ap_sta_id
;
1066 mvm
->d0i3_offloading
= !d0i3_iter_data
.disable_offloading
;
1068 WARN_ON_ONCE(d0i3_iter_data
.vif_count
> 1);
1069 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1070 mvm
->d0i3_offloading
= false;
1073 iwl_mvm_set_wowlan_data(mvm
, &wowlan_config_cmd
, &d0i3_iter_data
);
1074 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, flags
,
1075 sizeof(wowlan_config_cmd
),
1076 &wowlan_config_cmd
);
1080 return iwl_mvm_send_cmd_pdu(mvm
, D3_CONFIG_CMD
,
1081 flags
| CMD_MAKE_TRANS_IDLE
,
1082 sizeof(d3_cfg_cmd
), &d3_cfg_cmd
);
1085 static void iwl_mvm_exit_d0i3_iterator(void *_data
, u8
*mac
,
1086 struct ieee80211_vif
*vif
)
1088 struct iwl_mvm
*mvm
= _data
;
1089 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
;
1091 IWL_DEBUG_RPM(mvm
, "exiting D0i3 - vif %pM\n", vif
->addr
);
1092 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1093 !vif
->bss_conf
.assoc
)
1096 iwl_mvm_update_d0i3_power_mode(mvm
, vif
, false, flags
);
1099 static void iwl_mvm_d0i3_disconnect_iter(void *data
, u8
*mac
,
1100 struct ieee80211_vif
*vif
)
1102 struct iwl_mvm
*mvm
= data
;
1103 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1105 if (vif
->type
== NL80211_IFTYPE_STATION
&& vif
->bss_conf
.assoc
&&
1106 mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1107 ieee80211_connection_loss(vif
);
1110 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm
*mvm
, __le16
*qos_seq
)
1112 struct ieee80211_sta
*sta
= NULL
;
1113 struct iwl_mvm_sta
*mvm_ap_sta
;
1115 bool wake_queues
= false;
1117 lockdep_assert_held(&mvm
->mutex
);
1119 spin_lock_bh(&mvm
->d0i3_tx_lock
);
1121 if (mvm
->d0i3_ap_sta_id
== IWL_MVM_STATION_COUNT
)
1124 IWL_DEBUG_RPM(mvm
, "re-enqueue packets\n");
1126 /* get the sta in order to update seq numbers and re-enqueue skbs */
1127 sta
= rcu_dereference_protected(
1128 mvm
->fw_id_to_mac_id
[mvm
->d0i3_ap_sta_id
],
1129 lockdep_is_held(&mvm
->mutex
));
1131 if (IS_ERR_OR_NULL(sta
)) {
1136 if (mvm
->d0i3_offloading
&& qos_seq
) {
1137 /* update qos seq numbers if offloading was enabled */
1138 mvm_ap_sta
= (struct iwl_mvm_sta
*)sta
->drv_priv
;
1139 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1140 u16 seq
= le16_to_cpu(qos_seq
[i
]);
1141 /* firmware stores last-used one, we store next one */
1143 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1147 /* re-enqueue (or drop) all packets */
1148 while (!skb_queue_empty(&mvm
->d0i3_tx
)) {
1149 struct sk_buff
*skb
= __skb_dequeue(&mvm
->d0i3_tx
);
1151 if (!sta
|| iwl_mvm_tx_skb(mvm
, skb
, sta
))
1152 ieee80211_free_txskb(mvm
->hw
, skb
);
1154 /* if the skb_queue is not empty, we need to wake queues */
1157 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1158 wake_up(&mvm
->d0i3_exit_waitq
);
1159 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1161 ieee80211_wake_queues(mvm
->hw
);
1163 spin_unlock_bh(&mvm
->d0i3_tx_lock
);
1166 static void iwl_mvm_d0i3_exit_work(struct work_struct
*wk
)
1168 struct iwl_mvm
*mvm
= container_of(wk
, struct iwl_mvm
, d0i3_exit_work
);
1169 struct iwl_host_cmd get_status_cmd
= {
1170 .id
= WOWLAN_GET_STATUSES
,
1171 .flags
= CMD_HIGH_PRIO
| CMD_WANT_SKB
,
1173 struct iwl_wowlan_status
*status
;
1175 u32 disconnection_reasons
, wakeup_reasons
;
1176 __le16
*qos_seq
= NULL
;
1178 mutex_lock(&mvm
->mutex
);
1179 ret
= iwl_mvm_send_cmd(mvm
, &get_status_cmd
);
1183 if (!get_status_cmd
.resp_pkt
)
1186 status
= (void *)get_status_cmd
.resp_pkt
->data
;
1187 wakeup_reasons
= le32_to_cpu(status
->wakeup_reasons
);
1188 qos_seq
= status
->qos_seq_ctr
;
1190 IWL_DEBUG_RPM(mvm
, "wakeup reasons: 0x%x\n", wakeup_reasons
);
1192 disconnection_reasons
=
1193 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1194 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1195 if (wakeup_reasons
& disconnection_reasons
)
1196 ieee80211_iterate_active_interfaces(
1197 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1198 iwl_mvm_d0i3_disconnect_iter
, mvm
);
1200 iwl_free_resp(&get_status_cmd
);
1202 iwl_mvm_d0i3_enable_tx(mvm
, qos_seq
);
1203 iwl_mvm_unref(mvm
, IWL_MVM_REF_EXIT_WORK
);
1204 mutex_unlock(&mvm
->mutex
);
1207 int _iwl_mvm_exit_d0i3(struct iwl_mvm
*mvm
)
1209 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
|
1213 IWL_DEBUG_RPM(mvm
, "MVM exiting D0i3\n");
1215 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1216 if (test_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
)) {
1217 IWL_DEBUG_RPM(mvm
, "Deferring d0i3 exit until resume\n");
1218 __set_bit(D0I3_PENDING_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1219 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1222 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1224 ret
= iwl_mvm_send_cmd_pdu(mvm
, D0I3_END_CMD
, flags
, 0, NULL
);
1228 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
1229 IEEE80211_IFACE_ITER_NORMAL
,
1230 iwl_mvm_exit_d0i3_iterator
,
1233 schedule_work(&mvm
->d0i3_exit_work
);
1237 static int iwl_mvm_exit_d0i3(struct iwl_op_mode
*op_mode
)
1239 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
1241 iwl_mvm_ref(mvm
, IWL_MVM_REF_EXIT_WORK
);
1242 return _iwl_mvm_exit_d0i3(mvm
);
1245 static void iwl_mvm_napi_add(struct iwl_op_mode
*op_mode
,
1246 struct napi_struct
*napi
,
1247 struct net_device
*napi_dev
,
1248 int (*poll
)(struct napi_struct
*, int),
1251 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
1253 ieee80211_napi_add(mvm
->hw
, napi
, napi_dev
, poll
, weight
);
1256 static const struct iwl_op_mode_ops iwl_mvm_ops
= {
1257 .start
= iwl_op_mode_mvm_start
,
1258 .stop
= iwl_op_mode_mvm_stop
,
1259 .rx
= iwl_mvm_rx_dispatch
,
1260 .queue_full
= iwl_mvm_stop_sw_queue
,
1261 .queue_not_full
= iwl_mvm_wake_sw_queue
,
1262 .hw_rf_kill
= iwl_mvm_set_hw_rfkill_state
,
1263 .free_skb
= iwl_mvm_free_skb
,
1264 .nic_error
= iwl_mvm_nic_error
,
1265 .cmd_queue_full
= iwl_mvm_cmd_queue_full
,
1266 .nic_config
= iwl_mvm_nic_config
,
1267 .enter_d0i3
= iwl_mvm_enter_d0i3
,
1268 .exit_d0i3
= iwl_mvm_exit_d0i3
,
1269 .napi_add
= iwl_mvm_napi_add
,