1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/module.h>
66 #include <linux/vmalloc.h>
67 #include <net/mac80211.h>
69 #include "iwl-notif-wait.h"
70 #include "iwl-trans.h"
71 #include "iwl-op-mode.h"
73 #include "iwl-debug.h"
75 #include "iwl-modparams.h"
77 #include "iwl-phy-db.h"
78 #include "iwl-eeprom-parse.h"
83 #include "fw-api-scan.h"
84 #include "time-event.h"
85 #include "iwl-fw-error-dump.h"
88 * module name, copyright, version, etc.
90 #define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
92 #define DRV_VERSION IWLWIFI_VERSION
94 MODULE_DESCRIPTION(DRV_DESCRIPTION
);
95 MODULE_VERSION(DRV_VERSION
);
96 MODULE_AUTHOR(DRV_COPYRIGHT
" " DRV_AUTHOR
);
97 MODULE_LICENSE("GPL");
99 static const struct iwl_op_mode_ops iwl_mvm_ops
;
101 struct iwl_mvm_mod_params iwlmvm_mod_params
= {
102 .power_scheme
= IWL_POWER_SCHEME_BPS
,
103 /* rest of fields are 0 by default */
106 module_param_named(init_dbg
, iwlmvm_mod_params
.init_dbg
, bool, S_IRUGO
);
107 MODULE_PARM_DESC(init_dbg
,
108 "set to true to debug an ASSERT in INIT fw (default: false");
109 module_param_named(power_scheme
, iwlmvm_mod_params
.power_scheme
, int, S_IRUGO
);
110 MODULE_PARM_DESC(power_scheme
,
111 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
114 * module init and exit functions
116 static int __init
iwl_mvm_init(void)
120 ret
= iwl_mvm_rate_control_register();
122 pr_err("Unable to register rate control algorithm: %d\n", ret
);
126 ret
= iwl_opmode_register("iwlmvm", &iwl_mvm_ops
);
129 pr_err("Unable to register MVM op_mode: %d\n", ret
);
130 iwl_mvm_rate_control_unregister();
135 module_init(iwl_mvm_init
);
137 static void __exit
iwl_mvm_exit(void)
139 iwl_opmode_deregister("iwlmvm");
140 iwl_mvm_rate_control_unregister();
142 module_exit(iwl_mvm_exit
);
144 static void iwl_mvm_nic_config(struct iwl_op_mode
*op_mode
)
146 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
147 u8 radio_cfg_type
, radio_cfg_step
, radio_cfg_dash
;
150 radio_cfg_type
= (mvm
->fw
->phy_config
& FW_PHY_CFG_RADIO_TYPE
) >>
151 FW_PHY_CFG_RADIO_TYPE_POS
;
152 radio_cfg_step
= (mvm
->fw
->phy_config
& FW_PHY_CFG_RADIO_STEP
) >>
153 FW_PHY_CFG_RADIO_STEP_POS
;
154 radio_cfg_dash
= (mvm
->fw
->phy_config
& FW_PHY_CFG_RADIO_DASH
) >>
155 FW_PHY_CFG_RADIO_DASH_POS
;
158 reg_val
|= CSR_HW_REV_STEP(mvm
->trans
->hw_rev
) <<
159 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP
;
160 reg_val
|= CSR_HW_REV_DASH(mvm
->trans
->hw_rev
) <<
161 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH
;
163 /* radio configuration */
164 reg_val
|= radio_cfg_type
<< CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE
;
165 reg_val
|= radio_cfg_step
<< CSR_HW_IF_CONFIG_REG_POS_PHY_STEP
;
166 reg_val
|= radio_cfg_dash
<< CSR_HW_IF_CONFIG_REG_POS_PHY_DASH
;
168 WARN_ON((radio_cfg_type
<< CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE
) &
169 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE
);
172 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
173 * shouldn't be set to any non-zero value. The same is supposed to be
174 * true of the other HW, but unsetting them (such as the 7260) causes
175 * automatic tests to fail on seemingly unrelated errors. Need to
176 * further investigate this, but for now we'll separate cases.
178 if (mvm
->trans
->cfg
->device_family
!= IWL_DEVICE_FAMILY_8000
)
179 reg_val
|= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
;
181 iwl_trans_set_bits_mask(mvm
->trans
, CSR_HW_IF_CONFIG_REG
,
182 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH
|
183 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP
|
184 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE
|
185 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP
|
186 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH
|
187 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI
|
188 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI
,
191 IWL_DEBUG_INFO(mvm
, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type
,
192 radio_cfg_step
, radio_cfg_dash
);
195 * W/A : NIC is stuck in a reset state after Early PCIe power off
196 * (PCIe power is lost before PERST# is asserted), causing ME FW
197 * to lose ownership and not being able to obtain it back.
199 if (mvm
->trans
->cfg
->device_family
!= IWL_DEVICE_FAMILY_8000
)
200 iwl_set_bits_mask_prph(mvm
->trans
, APMG_PS_CTRL_REG
,
201 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
,
202 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS
);
205 struct iwl_rx_handlers
{
208 int (*fn
)(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
209 struct iwl_device_cmd
*cmd
);
212 #define RX_HANDLER(_cmd_id, _fn, _async) \
213 { .cmd_id = _cmd_id , .fn = _fn , .async = _async }
216 * Handlers for fw notifications
217 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
218 * This list should be in order of frequency for performance purposes.
220 * The handler can be SYNC - this means that it will be called in the Rx path
221 * which can't acquire mvm->mutex. If the handler needs to hold mvm->mutex (and
222 * only in this case!), it should be set as ASYNC. In that case, it will be
223 * called from a worker with mvm->mutex held.
225 static const struct iwl_rx_handlers iwl_mvm_rx_handlers
[] = {
226 RX_HANDLER(REPLY_RX_MPDU_CMD
, iwl_mvm_rx_rx_mpdu
, false),
227 RX_HANDLER(REPLY_RX_PHY_CMD
, iwl_mvm_rx_rx_phy_cmd
, false),
228 RX_HANDLER(TX_CMD
, iwl_mvm_rx_tx_cmd
, false),
229 RX_HANDLER(BA_NOTIF
, iwl_mvm_rx_ba_notif
, false),
231 RX_HANDLER(BT_PROFILE_NOTIFICATION
, iwl_mvm_rx_bt_coex_notif
, true),
232 RX_HANDLER(BEACON_NOTIFICATION
, iwl_mvm_rx_beacon_notif
, true),
233 RX_HANDLER(STATISTICS_NOTIFICATION
, iwl_mvm_rx_statistics
, true),
234 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION
,
235 iwl_mvm_rx_ant_coupling_notif
, true),
237 RX_HANDLER(TIME_EVENT_NOTIFICATION
, iwl_mvm_rx_time_event_notif
, false),
239 RX_HANDLER(EOSP_NOTIFICATION
, iwl_mvm_rx_eosp_notif
, false),
241 RX_HANDLER(SCAN_REQUEST_CMD
, iwl_mvm_rx_scan_response
, false),
242 RX_HANDLER(SCAN_COMPLETE_NOTIFICATION
, iwl_mvm_rx_scan_complete
, true),
243 RX_HANDLER(SCAN_OFFLOAD_COMPLETE
,
244 iwl_mvm_rx_scan_offload_complete_notif
, true),
245 RX_HANDLER(MATCH_FOUND_NOTIFICATION
, iwl_mvm_rx_scan_offload_results
,
248 RX_HANDLER(RADIO_VERSION_NOTIFICATION
, iwl_mvm_rx_radio_ver
, false),
249 RX_HANDLER(CARD_STATE_NOTIFICATION
, iwl_mvm_rx_card_state_notif
, false),
251 RX_HANDLER(MISSED_BEACONS_NOTIFICATION
, iwl_mvm_rx_missed_beacons_notif
,
254 RX_HANDLER(REPLY_ERROR
, iwl_mvm_rx_fw_error
, false),
255 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION
,
256 iwl_mvm_power_uapsd_misbehaving_ap_notif
, false),
259 #define CMD(x) [x] = #x
261 static const char *const iwl_mvm_cmd_strings
[REPLY_MAX
] = {
264 CMD(INIT_COMPLETE_NOTIF
),
265 CMD(PHY_CONTEXT_CMD
),
269 CMD(MAC_CONTEXT_CMD
),
271 CMD(TIME_EVENT_NOTIFICATION
),
272 CMD(BINDING_CONTEXT_CMD
),
274 CMD(NON_QOS_TX_COUNTER_CMD
),
275 CMD(RADIO_VERSION_NOTIFICATION
),
276 CMD(SCAN_REQUEST_CMD
),
278 CMD(SCAN_START_NOTIFICATION
),
279 CMD(SCAN_RESULTS_NOTIFICATION
),
280 CMD(SCAN_COMPLETE_NOTIFICATION
),
282 CMD(PHY_CONFIGURATION_CMD
),
283 CMD(CALIB_RES_NOTIF_PHY_DB
),
284 CMD(SET_CALIB_DEFAULT_CMD
),
285 CMD(CALIBRATION_COMPLETE_NOTIFICATION
),
290 CMD(SCAN_OFFLOAD_CONFIG_CMD
),
291 CMD(MATCH_FOUND_NOTIFICATION
),
292 CMD(SCAN_OFFLOAD_REQUEST_CMD
),
293 CMD(SCAN_OFFLOAD_ABORT_CMD
),
295 CMD(SCAN_OFFLOAD_COMPLETE
),
296 CMD(SCAN_OFFLOAD_UPDATE_PROFILES_CMD
),
297 CMD(SCAN_ITERATION_COMPLETE
),
298 CMD(POWER_TABLE_CMD
),
300 CMD(REPLY_RX_PHY_CMD
),
301 CMD(REPLY_RX_MPDU_CMD
),
302 CMD(BEACON_NOTIFICATION
),
303 CMD(BEACON_TEMPLATE_CMD
),
304 CMD(STATISTICS_NOTIFICATION
),
305 CMD(EOSP_NOTIFICATION
),
306 CMD(REDUCE_TX_POWER_CMD
),
307 CMD(TX_ANT_CONFIGURATION_CMD
),
310 CMD(PROT_OFFLOAD_CONFIG_CMD
),
311 CMD(OFFLOADS_QUERY_CMD
),
312 CMD(REMOTE_WAKE_CONFIG_CMD
),
313 CMD(WOWLAN_PATTERNS
),
314 CMD(WOWLAN_CONFIGURATION
),
315 CMD(WOWLAN_TSC_RSC_PARAM
),
316 CMD(WOWLAN_TKIP_PARAM
),
317 CMD(WOWLAN_KEK_KCK_MATERIAL
),
318 CMD(WOWLAN_GET_STATUSES
),
319 CMD(WOWLAN_TX_POWER_PER_DB
),
320 CMD(NET_DETECT_CONFIG_CMD
),
321 CMD(NET_DETECT_PROFILES_QUERY_CMD
),
322 CMD(NET_DETECT_PROFILES_CMD
),
323 CMD(NET_DETECT_HOTSPOTS_CMD
),
324 CMD(NET_DETECT_HOTSPOTS_QUERY_CMD
),
325 CMD(CARD_STATE_NOTIFICATION
),
326 CMD(MISSED_BEACONS_NOTIFICATION
),
327 CMD(BT_COEX_PRIO_TABLE
),
328 CMD(BT_COEX_PROT_ENV
),
329 CMD(BT_PROFILE_NOTIFICATION
),
331 CMD(MCAST_FILTER_CMD
),
332 CMD(BCAST_FILTER_CMD
),
333 CMD(REPLY_SF_CFG_CMD
),
334 CMD(REPLY_BEACON_FILTERING_CMD
),
335 CMD(CMD_DTS_MEASUREMENT_TRIGGER
),
336 CMD(DTS_MEASUREMENT_NOTIFICATION
),
337 CMD(REPLY_THERMAL_MNG_BACKOFF
),
338 CMD(MAC_PM_POWER_TABLE
),
341 CMD(BT_COEX_UPDATE_SW_BOOST
),
342 CMD(BT_COEX_UPDATE_CORUN_LUT
),
343 CMD(BT_COEX_UPDATE_REDUCED_TXP
),
344 CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION
),
345 CMD(ANTENNA_COUPLING_NOTIFICATION
),
350 /* this forward declaration can avoid to export the function */
351 static void iwl_mvm_async_handlers_wk(struct work_struct
*wk
);
352 static void iwl_mvm_d0i3_exit_work(struct work_struct
*wk
);
354 static u32
calc_min_backoff(struct iwl_trans
*trans
, const struct iwl_cfg
*cfg
)
356 const struct iwl_pwr_tx_backoff
*pwr_tx_backoff
= cfg
->pwr_tx_backoffs
;
361 while (pwr_tx_backoff
->pwr
) {
362 if (trans
->dflt_pwr_limit
>= pwr_tx_backoff
->pwr
)
363 return pwr_tx_backoff
->backoff
;
371 static void iwl_mvm_fw_error_dump_wk(struct work_struct
*work
);
373 static struct iwl_op_mode
*
374 iwl_op_mode_mvm_start(struct iwl_trans
*trans
, const struct iwl_cfg
*cfg
,
375 const struct iwl_fw
*fw
, struct dentry
*dbgfs_dir
)
377 struct ieee80211_hw
*hw
;
378 struct iwl_op_mode
*op_mode
;
380 struct iwl_trans_config trans_cfg
= {};
381 static const u8 no_reclaim_cmds
[] = {
388 * We use IWL_MVM_STATION_COUNT to check the validity of the station
389 * index all over the driver - check that its value corresponds to the
392 BUILD_BUG_ON(ARRAY_SIZE(mvm
->fw_id_to_mac_id
) != IWL_MVM_STATION_COUNT
);
394 /********************************
395 * 1. Allocating and configuring HW data
396 ********************************/
397 hw
= ieee80211_alloc_hw(sizeof(struct iwl_op_mode
) +
398 sizeof(struct iwl_mvm
),
403 if (cfg
->max_rx_agg_size
)
404 hw
->max_rx_aggregation_subframes
= cfg
->max_rx_agg_size
;
407 op_mode
->ops
= &iwl_mvm_ops
;
409 mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
410 mvm
->dev
= trans
->dev
;
416 mvm
->restart_fw
= iwlwifi_mod_params
.restart_fw
? -1 : 0;
419 mvm
->first_agg_queue
= 16;
420 mvm
->last_agg_queue
= mvm
->cfg
->base_params
->num_of_queues
- 1;
421 if (mvm
->cfg
->base_params
->num_of_queues
== 16) {
423 mvm
->first_agg_queue
= 12;
425 mvm
->sf_state
= SF_UNINIT
;
426 mvm
->low_latency_agg_frame_limit
= 6;
428 mutex_init(&mvm
->mutex
);
429 mutex_init(&mvm
->d0i3_suspend_mutex
);
430 spin_lock_init(&mvm
->async_handlers_lock
);
431 INIT_LIST_HEAD(&mvm
->time_event_list
);
432 INIT_LIST_HEAD(&mvm
->aux_roc_te_list
);
433 INIT_LIST_HEAD(&mvm
->async_handlers_list
);
434 spin_lock_init(&mvm
->time_event_lock
);
436 INIT_WORK(&mvm
->async_handlers_wk
, iwl_mvm_async_handlers_wk
);
437 INIT_WORK(&mvm
->roc_done_wk
, iwl_mvm_roc_done_wk
);
438 INIT_WORK(&mvm
->sta_drained_wk
, iwl_mvm_sta_drained_wk
);
439 INIT_WORK(&mvm
->d0i3_exit_work
, iwl_mvm_d0i3_exit_work
);
440 INIT_WORK(&mvm
->fw_error_dump_wk
, iwl_mvm_fw_error_dump_wk
);
442 spin_lock_init(&mvm
->d0i3_tx_lock
);
443 spin_lock_init(&mvm
->refs_lock
);
444 skb_queue_head_init(&mvm
->d0i3_tx
);
445 init_waitqueue_head(&mvm
->d0i3_exit_waitq
);
447 SET_IEEE80211_DEV(mvm
->hw
, mvm
->trans
->dev
);
450 * Populate the state variables that the transport layer needs
453 trans_cfg
.op_mode
= op_mode
;
454 trans_cfg
.no_reclaim_cmds
= no_reclaim_cmds
;
455 trans_cfg
.n_no_reclaim_cmds
= ARRAY_SIZE(no_reclaim_cmds
);
456 trans_cfg
.rx_buf_size_8k
= iwlwifi_mod_params
.amsdu_size_8K
;
458 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_DW_BC_TABLE
)
459 trans_cfg
.bc_table_dword
= true;
461 if (!iwlwifi_mod_params
.wd_disable
)
462 trans_cfg
.queue_watchdog_timeout
= cfg
->base_params
->wd_timeout
;
464 trans_cfg
.queue_watchdog_timeout
= IWL_WATCHDOG_DISABLED
;
466 trans_cfg
.command_names
= iwl_mvm_cmd_strings
;
468 trans_cfg
.cmd_queue
= IWL_MVM_CMD_QUEUE
;
469 trans_cfg
.cmd_fifo
= IWL_MVM_TX_FIFO_CMD
;
470 trans_cfg
.scd_set_active
= true;
472 snprintf(mvm
->hw
->wiphy
->fw_version
,
473 sizeof(mvm
->hw
->wiphy
->fw_version
),
474 "%s", fw
->fw_version
);
476 /* Configure transport layer */
477 iwl_trans_configure(mvm
->trans
, &trans_cfg
);
479 trans
->rx_mpdu_cmd
= REPLY_RX_MPDU_CMD
;
480 trans
->rx_mpdu_cmd_hdr_size
= sizeof(struct iwl_rx_mpdu_res_start
);
482 /* set up notification wait support */
483 iwl_notification_wait_init(&mvm
->notif_wait
);
486 mvm
->phy_db
= iwl_phy_db_init(trans
);
488 IWL_ERR(mvm
, "Cannot init phy_db\n");
492 IWL_INFO(mvm
, "Detected %s, REV=0x%X\n",
493 mvm
->cfg
->name
, mvm
->trans
->hw_rev
);
495 min_backoff
= calc_min_backoff(trans
, cfg
);
496 iwl_mvm_tt_initialize(mvm
, min_backoff
);
497 /* set the nvm_file_name according to priority */
498 if (iwlwifi_mod_params
.nvm_file
)
499 mvm
->nvm_file_name
= iwlwifi_mod_params
.nvm_file
;
501 mvm
->nvm_file_name
= mvm
->cfg
->default_nvm_file
;
503 if (WARN(cfg
->no_power_up_nic_in_init
&& !mvm
->nvm_file_name
,
504 "not allowing power-up and not having nvm_file\n"))
508 * Even if nvm exists in the nvm_file driver should read again the nvm
509 * from the nic because there might be entries that exist in the OTP
510 * and not in the file.
511 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
513 if (cfg
->no_power_up_nic_in_init
&& mvm
->nvm_file_name
) {
514 err
= iwl_nvm_init(mvm
, false);
518 err
= iwl_trans_start_hw(mvm
->trans
);
522 mutex_lock(&mvm
->mutex
);
523 err
= iwl_run_init_mvm_ucode(mvm
, true);
524 iwl_trans_stop_device(trans
);
525 mutex_unlock(&mvm
->mutex
);
526 /* returns 0 if successful, 1 if success but in rfkill */
527 if (err
< 0 && !iwlmvm_mod_params
.init_dbg
) {
528 IWL_ERR(mvm
, "Failed to run INIT ucode: %d\n", err
);
533 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
534 scan_size
= sizeof(struct iwl_scan_req_unified_lmac
) +
535 sizeof(struct iwl_scan_channel_cfg_lmac
) *
536 mvm
->fw
->ucode_capa
.n_scan_channels
+
537 sizeof(struct iwl_scan_probe_req
);
539 scan_size
= sizeof(struct iwl_scan_cmd
) +
540 mvm
->fw
->ucode_capa
.max_probe_length
+
541 mvm
->fw
->ucode_capa
.n_scan_channels
*
542 sizeof(struct iwl_scan_channel
);
544 mvm
->scan_cmd
= kmalloc(scan_size
, GFP_KERNEL
);
548 err
= iwl_mvm_mac_setup_register(mvm
);
552 err
= iwl_mvm_dbgfs_register(mvm
, dbgfs_dir
);
556 memset(&mvm
->rx_stats
, 0, sizeof(struct mvm_statistics_rx
));
558 /* rpm starts with a taken ref. only set the appropriate bit here. */
559 mvm
->refs
[IWL_MVM_REF_UCODE_DOWN
] = 1;
564 ieee80211_unregister_hw(mvm
->hw
);
565 iwl_mvm_leds_exit(mvm
);
567 iwl_phy_db_free(mvm
->phy_db
);
568 kfree(mvm
->scan_cmd
);
569 if (!cfg
->no_power_up_nic_in_init
|| !mvm
->nvm_file_name
)
570 iwl_trans_op_mode_leave(trans
);
571 ieee80211_free_hw(mvm
->hw
);
575 static void iwl_op_mode_mvm_stop(struct iwl_op_mode
*op_mode
)
577 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
580 iwl_mvm_leds_exit(mvm
);
582 iwl_mvm_tt_exit(mvm
);
584 ieee80211_unregister_hw(mvm
->hw
);
586 kfree(mvm
->scan_cmd
);
587 if (mvm
->fw_error_dump
) {
588 vfree(mvm
->fw_error_dump
->op_mode_ptr
);
589 vfree(mvm
->fw_error_dump
->trans_ptr
);
590 kfree(mvm
->fw_error_dump
);
592 kfree(mvm
->mcast_filter_cmd
);
593 mvm
->mcast_filter_cmd
= NULL
;
595 #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
596 kfree(mvm
->d3_resume_sram
);
597 if (mvm
->nd_config
) {
598 kfree(mvm
->nd_config
->match_sets
);
599 kfree(mvm
->nd_config
);
600 mvm
->nd_config
= NULL
;
606 iwl_trans_op_mode_leave(mvm
->trans
);
608 iwl_phy_db_free(mvm
->phy_db
);
611 iwl_free_nvm_data(mvm
->nvm_data
);
612 for (i
= 0; i
< NVM_MAX_NUM_SECTIONS
; i
++)
613 kfree(mvm
->nvm_sections
[i
].data
);
615 ieee80211_free_hw(mvm
->hw
);
618 struct iwl_async_handler_entry
{
619 struct list_head list
;
620 struct iwl_rx_cmd_buffer rxb
;
621 int (*fn
)(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
622 struct iwl_device_cmd
*cmd
);
625 void iwl_mvm_async_handlers_purge(struct iwl_mvm
*mvm
)
627 struct iwl_async_handler_entry
*entry
, *tmp
;
629 spin_lock_bh(&mvm
->async_handlers_lock
);
630 list_for_each_entry_safe(entry
, tmp
, &mvm
->async_handlers_list
, list
) {
631 iwl_free_rxb(&entry
->rxb
);
632 list_del(&entry
->list
);
635 spin_unlock_bh(&mvm
->async_handlers_lock
);
638 static void iwl_mvm_async_handlers_wk(struct work_struct
*wk
)
640 struct iwl_mvm
*mvm
=
641 container_of(wk
, struct iwl_mvm
, async_handlers_wk
);
642 struct iwl_async_handler_entry
*entry
, *tmp
;
643 struct list_head local_list
;
645 INIT_LIST_HEAD(&local_list
);
647 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
648 mutex_lock(&mvm
->mutex
);
651 * Sync with Rx path with a lock. Remove all the entries from this list,
652 * add them to a local one (lock free), and then handle them.
654 spin_lock_bh(&mvm
->async_handlers_lock
);
655 list_splice_init(&mvm
->async_handlers_list
, &local_list
);
656 spin_unlock_bh(&mvm
->async_handlers_lock
);
658 list_for_each_entry_safe(entry
, tmp
, &local_list
, list
) {
659 if (entry
->fn(mvm
, &entry
->rxb
, NULL
))
661 "returned value from ASYNC handlers are ignored\n");
662 iwl_free_rxb(&entry
->rxb
);
663 list_del(&entry
->list
);
666 mutex_unlock(&mvm
->mutex
);
669 static int iwl_mvm_rx_dispatch(struct iwl_op_mode
*op_mode
,
670 struct iwl_rx_cmd_buffer
*rxb
,
671 struct iwl_device_cmd
*cmd
)
673 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
674 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
678 * Do the notification wait before RX handlers so
679 * even if the RX handler consumes the RXB we have
680 * access to it in the notification wait entry.
682 iwl_notification_wait_notify(&mvm
->notif_wait
, pkt
);
684 for (i
= 0; i
< ARRAY_SIZE(iwl_mvm_rx_handlers
); i
++) {
685 const struct iwl_rx_handlers
*rx_h
= &iwl_mvm_rx_handlers
[i
];
686 struct iwl_async_handler_entry
*entry
;
688 if (rx_h
->cmd_id
!= pkt
->hdr
.cmd
)
692 return rx_h
->fn(mvm
, rxb
, cmd
);
694 entry
= kzalloc(sizeof(*entry
), GFP_ATOMIC
);
695 /* we can't do much... */
699 entry
->rxb
._page
= rxb_steal_page(rxb
);
700 entry
->rxb
._offset
= rxb
->_offset
;
701 entry
->rxb
._rx_page_order
= rxb
->_rx_page_order
;
702 entry
->fn
= rx_h
->fn
;
703 spin_lock(&mvm
->async_handlers_lock
);
704 list_add_tail(&entry
->list
, &mvm
->async_handlers_list
);
705 spin_unlock(&mvm
->async_handlers_lock
);
706 schedule_work(&mvm
->async_handlers_wk
);
713 static void iwl_mvm_stop_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
715 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
716 int mq
= mvm
->queue_to_mac80211
[queue
];
718 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
721 if (atomic_inc_return(&mvm
->mac80211_queue_stop_count
[mq
]) > 1) {
722 IWL_DEBUG_TX_QUEUES(mvm
,
723 "queue %d (mac80211 %d) already stopped\n",
728 ieee80211_stop_queue(mvm
->hw
, mq
);
731 static void iwl_mvm_wake_sw_queue(struct iwl_op_mode
*op_mode
, int queue
)
733 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
734 int mq
= mvm
->queue_to_mac80211
[queue
];
736 if (WARN_ON_ONCE(mq
== IWL_INVALID_MAC80211_QUEUE
))
739 if (atomic_dec_return(&mvm
->mac80211_queue_stop_count
[mq
]) > 0) {
740 IWL_DEBUG_TX_QUEUES(mvm
,
741 "queue %d (mac80211 %d) still stopped\n",
746 ieee80211_wake_queue(mvm
->hw
, mq
);
749 void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm
*mvm
, bool state
)
752 set_bit(IWL_MVM_STATUS_HW_CTKILL
, &mvm
->status
);
754 clear_bit(IWL_MVM_STATUS_HW_CTKILL
, &mvm
->status
);
756 wiphy_rfkill_set_hw_state(mvm
->hw
->wiphy
, iwl_mvm_is_radio_killed(mvm
));
759 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode
*op_mode
, bool state
)
761 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
764 set_bit(IWL_MVM_STATUS_HW_RFKILL
, &mvm
->status
);
766 clear_bit(IWL_MVM_STATUS_HW_RFKILL
, &mvm
->status
);
768 wiphy_rfkill_set_hw_state(mvm
->hw
->wiphy
, iwl_mvm_is_radio_killed(mvm
));
770 return state
&& mvm
->cur_ucode
!= IWL_UCODE_INIT
;
773 static void iwl_mvm_free_skb(struct iwl_op_mode
*op_mode
, struct sk_buff
*skb
)
775 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
776 struct ieee80211_tx_info
*info
;
778 info
= IEEE80211_SKB_CB(skb
);
779 iwl_trans_free_tx_cmd(mvm
->trans
, info
->driver_data
[1]);
780 ieee80211_free_txskb(mvm
->hw
, skb
);
783 struct iwl_mvm_reprobe
{
785 struct work_struct work
;
788 static void iwl_mvm_reprobe_wk(struct work_struct
*wk
)
790 struct iwl_mvm_reprobe
*reprobe
;
792 reprobe
= container_of(wk
, struct iwl_mvm_reprobe
, work
);
793 if (device_reprobe(reprobe
->dev
))
794 dev_err(reprobe
->dev
, "reprobe failed!\n");
796 module_put(THIS_MODULE
);
799 static void iwl_mvm_fw_error_dump_wk(struct work_struct
*work
)
801 struct iwl_mvm
*mvm
=
802 container_of(work
, struct iwl_mvm
, fw_error_dump_wk
);
804 mutex_lock(&mvm
->mutex
);
805 iwl_mvm_fw_error_dump(mvm
);
806 mutex_unlock(&mvm
->mutex
);
809 void iwl_mvm_nic_restart(struct iwl_mvm
*mvm
, bool fw_error
)
811 iwl_abort_notification_waits(&mvm
->notif_wait
);
814 * This is a bit racy, but worst case we tell mac80211 about
815 * a stopped/aborted scan when that was already done which
816 * is not a problem. It is necessary to abort any os scan
817 * here because mac80211 requires having the scan cleared
819 * We'll reset the scan_status to NONE in restart cleanup in
820 * the next start() call from mac80211. If restart isn't called
821 * (no fw restart) scan status will stay busy.
823 switch (mvm
->scan_status
) {
824 case IWL_MVM_SCAN_NONE
:
826 case IWL_MVM_SCAN_OS
:
827 ieee80211_scan_completed(mvm
->hw
, true);
829 case IWL_MVM_SCAN_SCHED
:
830 /* Sched scan will be restarted by mac80211 in restart_hw. */
831 if (!mvm
->restart_fw
)
832 ieee80211_sched_scan_stopped(mvm
->hw
);
837 * If we're restarting already, don't cycle restarts.
838 * If INIT fw asserted, it will likely fail again.
839 * If WoWLAN fw asserted, don't restart either, mac80211
840 * can't recover this since we're already half suspended.
842 if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
843 struct iwl_mvm_reprobe
*reprobe
;
846 "Firmware error during reconfiguration - reprobe!\n");
849 * get a module reference to avoid doing this while unloading
850 * anyway and to avoid scheduling a work with code that's
853 if (!try_module_get(THIS_MODULE
)) {
854 IWL_ERR(mvm
, "Module is being unloaded - abort\n");
858 reprobe
= kzalloc(sizeof(*reprobe
), GFP_ATOMIC
);
860 module_put(THIS_MODULE
);
863 reprobe
->dev
= mvm
->trans
->dev
;
864 INIT_WORK(&reprobe
->work
, iwl_mvm_reprobe_wk
);
865 schedule_work(&reprobe
->work
);
866 } else if (mvm
->cur_ucode
== IWL_UCODE_REGULAR
&&
867 (!fw_error
|| mvm
->restart_fw
)) {
868 /* don't let the transport/FW power down */
869 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
871 if (fw_error
&& mvm
->restart_fw
> 0)
873 ieee80211_restart_hw(mvm
->hw
);
874 } else if (fw_error
) {
875 schedule_work(&mvm
->fw_error_dump_wk
);
879 static void iwl_mvm_nic_error(struct iwl_op_mode
*op_mode
)
881 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
883 iwl_mvm_dump_nic_error_log(mvm
);
885 iwl_mvm_nic_restart(mvm
, true);
888 static void iwl_mvm_cmd_queue_full(struct iwl_op_mode
*op_mode
)
890 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
893 iwl_mvm_nic_restart(mvm
, true);
896 struct iwl_d0i3_iter_data
{
901 bool disable_offloading
;
904 static bool iwl_mvm_disallow_offloading(struct iwl_mvm
*mvm
,
905 struct ieee80211_vif
*vif
,
906 struct iwl_d0i3_iter_data
*iter_data
)
908 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
909 struct ieee80211_sta
*ap_sta
;
910 struct iwl_mvm_sta
*mvmsta
;
911 u32 available_tids
= 0;
914 if (WARN_ON(vif
->type
!= NL80211_IFTYPE_STATION
||
915 mvmvif
->ap_sta_id
== IWL_MVM_STATION_COUNT
))
918 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
]);
919 if (IS_ERR_OR_NULL(ap_sta
))
922 mvmsta
= iwl_mvm_sta_from_mac80211(ap_sta
);
923 spin_lock_bh(&mvmsta
->lock
);
924 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
925 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
928 * in case of pending tx packets, don't use this tid
929 * for offloading in order to prevent reuse of the same
932 if (iwl_mvm_tid_queued(tid_data
))
935 if (tid_data
->state
!= IWL_AGG_OFF
)
938 available_tids
|= BIT(tid
);
940 spin_unlock_bh(&mvmsta
->lock
);
943 * disallow protocol offloading if we have no available tid
944 * (with no pending frames and no active aggregation,
945 * as we don't handle "holes" properly - the scheduler needs the
946 * frame's seq number and TFD index to match)
951 /* for simplicity, just use the first available tid */
952 iter_data
->offloading_tid
= ffs(available_tids
) - 1;
956 static void iwl_mvm_enter_d0i3_iterator(void *_data
, u8
*mac
,
957 struct ieee80211_vif
*vif
)
959 struct iwl_d0i3_iter_data
*data
= _data
;
960 struct iwl_mvm
*mvm
= data
->mvm
;
961 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
962 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
;
964 IWL_DEBUG_RPM(mvm
, "entering D0i3 - vif %pM\n", vif
->addr
);
965 if (vif
->type
!= NL80211_IFTYPE_STATION
||
966 !vif
->bss_conf
.assoc
)
970 * in case of pending tx packets or active aggregations,
971 * avoid offloading features in order to prevent reuse of
972 * the same qos seq counters.
974 if (iwl_mvm_disallow_offloading(mvm
, vif
, data
))
975 data
->disable_offloading
= true;
977 iwl_mvm_update_d0i3_power_mode(mvm
, vif
, true, flags
);
978 iwl_mvm_send_proto_offload(mvm
, vif
, data
->disable_offloading
, flags
);
981 * on init/association, mvm already configures POWER_TABLE_CMD
982 * and REPLY_MCAST_FILTER_CMD, so currently don't
983 * reconfigure them (we might want to use different
984 * params later on, though).
986 data
->ap_sta_id
= mvmvif
->ap_sta_id
;
990 static void iwl_mvm_set_wowlan_data(struct iwl_mvm
*mvm
,
991 struct iwl_wowlan_config_cmd_v3
*cmd
,
992 struct iwl_d0i3_iter_data
*iter_data
)
994 struct ieee80211_sta
*ap_sta
;
995 struct iwl_mvm_sta
*mvm_ap_sta
;
997 if (iter_data
->ap_sta_id
== IWL_MVM_STATION_COUNT
)
1002 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[iter_data
->ap_sta_id
]);
1003 if (IS_ERR_OR_NULL(ap_sta
))
1006 mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
1007 cmd
->common
.is_11n_connection
= ap_sta
->ht_cap
.ht_supported
;
1008 cmd
->offloading_tid
= iter_data
->offloading_tid
;
1011 * The d0i3 uCode takes care of the nonqos counters,
1012 * so configure only the qos seq ones.
1014 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, &cmd
->common
);
1018 static int iwl_mvm_enter_d0i3(struct iwl_op_mode
*op_mode
)
1020 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
1021 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
;
1023 struct iwl_d0i3_iter_data d0i3_iter_data
= {
1026 struct iwl_wowlan_config_cmd_v3 wowlan_config_cmd
= {
1029 cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME
|
1030 IWL_WOWLAN_WAKEUP_BEACON_MISS
|
1031 IWL_WOWLAN_WAKEUP_LINK_CHANGE
|
1032 IWL_WOWLAN_WAKEUP_BCN_FILTERING
),
1035 struct iwl_d3_manager_config d3_cfg_cmd
= {
1036 .min_sleep_time
= cpu_to_le32(1000),
1039 IWL_DEBUG_RPM(mvm
, "MVM entering D0i3\n");
1041 /* make sure we have no running tx while configuring the qos */
1042 set_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1045 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
1046 IEEE80211_IFACE_ITER_NORMAL
,
1047 iwl_mvm_enter_d0i3_iterator
,
1049 if (d0i3_iter_data
.vif_count
== 1) {
1050 mvm
->d0i3_ap_sta_id
= d0i3_iter_data
.ap_sta_id
;
1051 mvm
->d0i3_offloading
= !d0i3_iter_data
.disable_offloading
;
1053 WARN_ON_ONCE(d0i3_iter_data
.vif_count
> 1);
1054 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1055 mvm
->d0i3_offloading
= false;
1058 iwl_mvm_set_wowlan_data(mvm
, &wowlan_config_cmd
, &d0i3_iter_data
);
1059 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, flags
,
1060 sizeof(wowlan_config_cmd
),
1061 &wowlan_config_cmd
);
1065 return iwl_mvm_send_cmd_pdu(mvm
, D3_CONFIG_CMD
,
1066 flags
| CMD_MAKE_TRANS_IDLE
,
1067 sizeof(d3_cfg_cmd
), &d3_cfg_cmd
);
1070 static void iwl_mvm_exit_d0i3_iterator(void *_data
, u8
*mac
,
1071 struct ieee80211_vif
*vif
)
1073 struct iwl_mvm
*mvm
= _data
;
1074 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
;
1076 IWL_DEBUG_RPM(mvm
, "exiting D0i3 - vif %pM\n", vif
->addr
);
1077 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1078 !vif
->bss_conf
.assoc
)
1081 iwl_mvm_update_d0i3_power_mode(mvm
, vif
, false, flags
);
1084 static void iwl_mvm_d0i3_disconnect_iter(void *data
, u8
*mac
,
1085 struct ieee80211_vif
*vif
)
1087 struct iwl_mvm
*mvm
= data
;
1088 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1090 if (vif
->type
== NL80211_IFTYPE_STATION
&& vif
->bss_conf
.assoc
&&
1091 mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1092 ieee80211_connection_loss(vif
);
1095 void iwl_mvm_d0i3_enable_tx(struct iwl_mvm
*mvm
, __le16
*qos_seq
)
1097 struct ieee80211_sta
*sta
= NULL
;
1098 struct iwl_mvm_sta
*mvm_ap_sta
;
1100 bool wake_queues
= false;
1102 lockdep_assert_held(&mvm
->mutex
);
1104 spin_lock_bh(&mvm
->d0i3_tx_lock
);
1106 if (mvm
->d0i3_ap_sta_id
== IWL_MVM_STATION_COUNT
)
1109 IWL_DEBUG_RPM(mvm
, "re-enqueue packets\n");
1111 /* get the sta in order to update seq numbers and re-enqueue skbs */
1112 sta
= rcu_dereference_protected(
1113 mvm
->fw_id_to_mac_id
[mvm
->d0i3_ap_sta_id
],
1114 lockdep_is_held(&mvm
->mutex
));
1116 if (IS_ERR_OR_NULL(sta
)) {
1121 if (mvm
->d0i3_offloading
&& qos_seq
) {
1122 /* update qos seq numbers if offloading was enabled */
1123 mvm_ap_sta
= (struct iwl_mvm_sta
*)sta
->drv_priv
;
1124 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1125 u16 seq
= le16_to_cpu(qos_seq
[i
]);
1126 /* firmware stores last-used one, we store next one */
1128 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1132 /* re-enqueue (or drop) all packets */
1133 while (!skb_queue_empty(&mvm
->d0i3_tx
)) {
1134 struct sk_buff
*skb
= __skb_dequeue(&mvm
->d0i3_tx
);
1136 if (!sta
|| iwl_mvm_tx_skb(mvm
, skb
, sta
))
1137 ieee80211_free_txskb(mvm
->hw
, skb
);
1139 /* if the skb_queue is not empty, we need to wake queues */
1142 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1143 wake_up(&mvm
->d0i3_exit_waitq
);
1144 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1146 ieee80211_wake_queues(mvm
->hw
);
1148 spin_unlock_bh(&mvm
->d0i3_tx_lock
);
1151 static void iwl_mvm_d0i3_exit_work(struct work_struct
*wk
)
1153 struct iwl_mvm
*mvm
= container_of(wk
, struct iwl_mvm
, d0i3_exit_work
);
1154 struct iwl_host_cmd get_status_cmd
= {
1155 .id
= WOWLAN_GET_STATUSES
,
1156 .flags
= CMD_HIGH_PRIO
| CMD_WANT_SKB
,
1158 struct iwl_wowlan_status
*status
;
1160 u32 disconnection_reasons
, wakeup_reasons
;
1161 __le16
*qos_seq
= NULL
;
1163 mutex_lock(&mvm
->mutex
);
1164 ret
= iwl_mvm_send_cmd(mvm
, &get_status_cmd
);
1168 if (!get_status_cmd
.resp_pkt
)
1171 status
= (void *)get_status_cmd
.resp_pkt
->data
;
1172 wakeup_reasons
= le32_to_cpu(status
->wakeup_reasons
);
1173 qos_seq
= status
->qos_seq_ctr
;
1175 IWL_DEBUG_RPM(mvm
, "wakeup reasons: 0x%x\n", wakeup_reasons
);
1177 disconnection_reasons
=
1178 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1179 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1180 if (wakeup_reasons
& disconnection_reasons
)
1181 ieee80211_iterate_active_interfaces(
1182 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1183 iwl_mvm_d0i3_disconnect_iter
, mvm
);
1185 iwl_free_resp(&get_status_cmd
);
1187 iwl_mvm_d0i3_enable_tx(mvm
, qos_seq
);
1188 iwl_mvm_unref(mvm
, IWL_MVM_REF_EXIT_WORK
);
1189 mutex_unlock(&mvm
->mutex
);
1192 int _iwl_mvm_exit_d0i3(struct iwl_mvm
*mvm
)
1194 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
|
1198 IWL_DEBUG_RPM(mvm
, "MVM exiting D0i3\n");
1200 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1201 if (test_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
)) {
1202 IWL_DEBUG_RPM(mvm
, "Deferring d0i3 exit until resume\n");
1203 __set_bit(D0I3_PENDING_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1204 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1207 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1209 ret
= iwl_mvm_send_cmd_pdu(mvm
, D0I3_END_CMD
, flags
, 0, NULL
);
1213 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
1214 IEEE80211_IFACE_ITER_NORMAL
,
1215 iwl_mvm_exit_d0i3_iterator
,
1218 schedule_work(&mvm
->d0i3_exit_work
);
1222 static int iwl_mvm_exit_d0i3(struct iwl_op_mode
*op_mode
)
1224 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
1226 iwl_mvm_ref(mvm
, IWL_MVM_REF_EXIT_WORK
);
1227 return _iwl_mvm_exit_d0i3(mvm
);
1230 static void iwl_mvm_napi_add(struct iwl_op_mode
*op_mode
,
1231 struct napi_struct
*napi
,
1232 struct net_device
*napi_dev
,
1233 int (*poll
)(struct napi_struct
*, int),
1236 struct iwl_mvm
*mvm
= IWL_OP_MODE_GET_MVM(op_mode
);
1238 ieee80211_napi_add(mvm
->hw
, napi
, napi_dev
, poll
, weight
);
1241 static const struct iwl_op_mode_ops iwl_mvm_ops
= {
1242 .start
= iwl_op_mode_mvm_start
,
1243 .stop
= iwl_op_mode_mvm_stop
,
1244 .rx
= iwl_mvm_rx_dispatch
,
1245 .queue_full
= iwl_mvm_stop_sw_queue
,
1246 .queue_not_full
= iwl_mvm_wake_sw_queue
,
1247 .hw_rf_kill
= iwl_mvm_set_hw_rfkill_state
,
1248 .free_skb
= iwl_mvm_free_skb
,
1249 .nic_error
= iwl_mvm_nic_error
,
1250 .cmd_queue_full
= iwl_mvm_cmd_queue_full
,
1251 .nic_config
= iwl_mvm_nic_config
,
1252 .enter_d0i3
= iwl_mvm_enter_d0i3
,
1253 .exit_d0i3
= iwl_mvm_exit_d0i3
,
1254 .napi_add
= iwl_mvm_napi_add
,