iwlwifi: mvm: handle FRAME_RELEASE in MQ code
[deliverable/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / ops.c
CommitLineData
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1/******************************************************************************
2 *
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.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
4fb06283 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
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10 *
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.
14 *
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.
19 *
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,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
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27 *
28 * Contact Information:
cb2f8277 29 * Intel Linux Wireless <linuxwifi@intel.com>
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30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
4fb06283 35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
0db056d3 36 * Copyright(c) 2016 Intel Deutschland GmbH
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37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *
65 *****************************************************************************/
66#include <linux/module.h>
1bd3cbc1 67#include <linux/vmalloc.h>
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68#include <net/mac80211.h>
69
70#include "iwl-notif-wait.h"
71#include "iwl-trans.h"
72#include "iwl-op-mode.h"
73#include "iwl-fw.h"
74#include "iwl-debug.h"
75#include "iwl-drv.h"
76#include "iwl-modparams.h"
77#include "mvm.h"
78#include "iwl-phy-db.h"
79#include "iwl-eeprom-parse.h"
80#include "iwl-csr.h"
81#include "iwl-io.h"
82#include "iwl-prph.h"
83#include "rs.h"
84#include "fw-api-scan.h"
85#include "time-event.h"
2f89a5d7 86#include "fw-dbg.h"
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SD
87#include "fw-api.h"
88#include "fw-api-scan.h"
8ca151b5 89
8ca151b5 90#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
8ca151b5 91MODULE_DESCRIPTION(DRV_DESCRIPTION);
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92MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
93MODULE_LICENSE("GPL");
94
95static const struct iwl_op_mode_ops iwl_mvm_ops;
0316d30e 96static const struct iwl_op_mode_ops iwl_mvm_ops_mq;
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97
98struct iwl_mvm_mod_params iwlmvm_mod_params = {
99 .power_scheme = IWL_POWER_SCHEME_BPS,
ce71c2f7 100 .tfd_q_hang_detect = true
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101 /* rest of fields are 0 by default */
102};
103
104module_param_named(init_dbg, iwlmvm_mod_params.init_dbg, bool, S_IRUGO);
105MODULE_PARM_DESC(init_dbg,
106 "set to true to debug an ASSERT in INIT fw (default: false");
107module_param_named(power_scheme, iwlmvm_mod_params.power_scheme, int, S_IRUGO);
108MODULE_PARM_DESC(power_scheme,
109 "power management scheme: 1-active, 2-balanced, 3-low power, default: 2");
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110module_param_named(tfd_q_hang_detect, iwlmvm_mod_params.tfd_q_hang_detect,
111 bool, S_IRUGO);
112MODULE_PARM_DESC(tfd_q_hang_detect,
113 "TFD queues hang detection (default: true");
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114
115/*
116 * module init and exit functions
117 */
118static int __init iwl_mvm_init(void)
119{
120 int ret;
121
122 ret = iwl_mvm_rate_control_register();
123 if (ret) {
124 pr_err("Unable to register rate control algorithm: %d\n", ret);
125 return ret;
126 }
127
128 ret = iwl_opmode_register("iwlmvm", &iwl_mvm_ops);
129
130 if (ret) {
131 pr_err("Unable to register MVM op_mode: %d\n", ret);
132 iwl_mvm_rate_control_unregister();
133 }
134
135 return ret;
136}
137module_init(iwl_mvm_init);
138
139static void __exit iwl_mvm_exit(void)
140{
141 iwl_opmode_deregister("iwlmvm");
142 iwl_mvm_rate_control_unregister();
143}
144module_exit(iwl_mvm_exit);
145
146static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
147{
148 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
149 u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
150 u32 reg_val = 0;
a0544272
MH
151 u32 phy_config = iwl_mvm_get_phy_config(mvm);
152
153 radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
154 FW_PHY_CFG_RADIO_TYPE_POS;
155 radio_cfg_step = (phy_config & FW_PHY_CFG_RADIO_STEP) >>
156 FW_PHY_CFG_RADIO_STEP_POS;
157 radio_cfg_dash = (phy_config & FW_PHY_CFG_RADIO_DASH) >>
158 FW_PHY_CFG_RADIO_DASH_POS;
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159
160 /* SKU control */
161 reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
162 CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
163 reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
164 CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
165
166 /* radio configuration */
167 reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
168 reg_val |= radio_cfg_step << CSR_HW_IF_CONFIG_REG_POS_PHY_STEP;
169 reg_val |= radio_cfg_dash << CSR_HW_IF_CONFIG_REG_POS_PHY_DASH;
170
171 WARN_ON((radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE) &
172 ~CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE);
173
9b1fcc11
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174 /*
175 * TODO: Bits 7-8 of CSR in 8000 HW family set the ADC sampling, and
176 * shouldn't be set to any non-zero value. The same is supposed to be
177 * true of the other HW, but unsetting them (such as the 7260) causes
178 * automatic tests to fail on seemingly unrelated errors. Need to
179 * further investigate this, but for now we'll separate cases.
180 */
181 if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000)
182 reg_val |= CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI;
8ca151b5 183
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LE
184 iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
185 CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
186 CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
187 CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
188 CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
189 CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
190 CSR_HW_IF_CONFIG_REG_BIT_RADIO_SI |
191 CSR_HW_IF_CONFIG_REG_BIT_MAC_SI,
192 reg_val);
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193
194 IWL_DEBUG_INFO(mvm, "Radio type=0x%x-0x%x-0x%x\n", radio_cfg_type,
195 radio_cfg_step, radio_cfg_dash);
196
197 /*
198 * W/A : NIC is stuck in a reset state after Early PCIe power off
199 * (PCIe power is lost before PERST# is asserted), causing ME FW
200 * to lose ownership and not being able to obtain it back.
201 */
95411d04 202 if (!mvm->trans->cfg->apmg_not_supported)
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EH
203 iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG,
204 APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS,
205 ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS);
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206}
207
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208/**
209 * enum iwl_rx_handler_context context for Rx handler
210 * @RX_HANDLER_SYNC : this means that it will be called in the Rx path
211 * which can't acquire mvm->mutex.
212 * @RX_HANDLER_ASYNC_LOCKED : If the handler needs to hold mvm->mutex
213 * (and only in this case!), it should be set as ASYNC. In that case,
214 * it will be called from a worker with mvm->mutex held.
215 * @RX_HANDLER_ASYNC_UNLOCKED : in case the handler needs to lock the
216 * mutex itself, it will be called from a worker without mvm->mutex held.
217 */
218enum iwl_rx_handler_context {
219 RX_HANDLER_SYNC,
220 RX_HANDLER_ASYNC_LOCKED,
221 RX_HANDLER_ASYNC_UNLOCKED,
222};
223
224/**
225 * struct iwl_rx_handlers handler for FW notification
226 * @cmd_id: command id
227 * @context: see &iwl_rx_handler_context
228 * @fn: the function is called when notification is received
229 */
8ca151b5 230struct iwl_rx_handlers {
1230b16b 231 u16 cmd_id;
c9cb14a6 232 enum iwl_rx_handler_context context;
0416841d 233 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
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234};
235
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236#define RX_HANDLER(_cmd_id, _fn, _context) \
237 { .cmd_id = _cmd_id, .fn = _fn, .context = _context }
238#define RX_HANDLER_GRP(_grp, _cmd, _fn, _context) \
239 { .cmd_id = WIDE_ID(_grp, _cmd), .fn = _fn, .context = _context }
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240
241/*
242 * Handlers for fw notifications
243 * Convention: RX_HANDLER(CMD_NAME, iwl_mvm_rx_CMD_NAME
244 * This list should be in order of frequency for performance purposes.
245 *
c9cb14a6 246 * The handler can be one from three contexts, see &iwl_rx_handler_context
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247 */
248static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
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249 RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, RX_HANDLER_SYNC),
250 RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, RX_HANDLER_SYNC),
251
252 RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif,
253 RX_HANDLER_ASYNC_LOCKED),
254 RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif,
255 RX_HANDLER_ASYNC_LOCKED),
256 RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics,
257 RX_HANDLER_ASYNC_LOCKED),
b9fae2d5 258 RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION,
c9cb14a6 259 iwl_mvm_rx_ant_coupling_notif, RX_HANDLER_ASYNC_LOCKED),
f421f9c3 260
3af512d6 261 RX_HANDLER(BA_WINDOW_STATUS_NOTIFICATION_ID,
c9cb14a6 262 iwl_mvm_window_status_notif, RX_HANDLER_SYNC),
3af512d6 263
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CRI
264 RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif,
265 RX_HANDLER_SYNC),
266 RX_HANDLER(MCC_CHUB_UPDATE_CMD, iwl_mvm_rx_chub_update_mcc,
267 RX_HANDLER_ASYNC_LOCKED),
497b49d2 268
c9cb14a6 269 RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, RX_HANDLER_SYNC),
3e56eadf 270
e5d74646 271 RX_HANDLER(SCAN_ITERATION_COMPLETE,
c9cb14a6 272 iwl_mvm_rx_lmac_scan_iter_complete_notif, RX_HANDLER_SYNC),
35a000b7 273 RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
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CRI
274 iwl_mvm_rx_lmac_scan_complete_notif,
275 RX_HANDLER_ASYNC_LOCKED),
6e56f01d 276 RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_scan_match_found,
c9cb14a6 277 RX_HANDLER_SYNC),
d2496221 278 RX_HANDLER(SCAN_COMPLETE_UMAC, iwl_mvm_rx_umac_scan_complete_notif,
c9cb14a6 279 RX_HANDLER_ASYNC_LOCKED),
ee9219b2 280 RX_HANDLER(SCAN_ITERATION_COMPLETE_UMAC,
c9cb14a6 281 iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC),
497b49d2 282
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CRI
283 RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
284 RX_HANDLER_SYNC),
8ca151b5 285
d64048ed 286 RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
c9cb14a6 287 RX_HANDLER_SYNC),
d64048ed 288
c9cb14a6 289 RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, RX_HANDLER_SYNC),
175a70b7 290 RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION,
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CRI
291 iwl_mvm_power_uapsd_misbehaving_ap_notif, RX_HANDLER_SYNC),
292 RX_HANDLER(DTS_MEASUREMENT_NOTIFICATION, iwl_mvm_temp_notif,
293 RX_HANDLER_ASYNC_LOCKED),
09eef330 294 RX_HANDLER_GRP(PHY_OPS_GROUP, DTS_MEASUREMENT_NOTIF_WIDE,
ec77a33e 295 iwl_mvm_temp_notif, RX_HANDLER_ASYNC_UNLOCKED),
0a3b7119 296 RX_HANDLER_GRP(PHY_OPS_GROUP, CT_KILL_NOTIFICATION,
c9cb14a6 297 iwl_mvm_ct_kill_notif, RX_HANDLER_SYNC),
ea9af24d 298
1d3c3f63 299 RX_HANDLER(TDLS_CHANNEL_SWITCH_NOTIFICATION, iwl_mvm_rx_tdls_notif,
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CRI
300 RX_HANDLER_ASYNC_LOCKED),
301 RX_HANDLER(MFUART_LOAD_NOTIFICATION, iwl_mvm_rx_mfuart_notif,
302 RX_HANDLER_SYNC),
303 RX_HANDLER(TOF_NOTIFICATION, iwl_mvm_tof_resp_handler,
304 RX_HANDLER_ASYNC_LOCKED),
0db056d3 305 RX_HANDLER_GRP(PROT_OFFLOAD_GROUP, STORED_BEACON_NTF,
c9cb14a6 306 iwl_mvm_rx_stored_beacon_notif, RX_HANDLER_SYNC),
f92659a1 307 RX_HANDLER_GRP(DATA_PATH_GROUP, MU_GROUP_MGMT_NOTIF,
c9cb14a6 308 iwl_mvm_mu_mimo_grp_notif, RX_HANDLER_SYNC),
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309};
310#undef RX_HANDLER
1230b16b 311#undef RX_HANDLER_GRP
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SD
312
313/* Please keep this array *SORTED* by hex value.
314 * Access is done through binary search
315 */
316static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
317 HCMD_NAME(MVM_ALIVE),
318 HCMD_NAME(REPLY_ERROR),
319 HCMD_NAME(ECHO_CMD),
320 HCMD_NAME(INIT_COMPLETE_NOTIF),
321 HCMD_NAME(PHY_CONTEXT_CMD),
322 HCMD_NAME(DBG_CFG),
323 HCMD_NAME(ANTENNA_COUPLING_NOTIFICATION),
324 HCMD_NAME(SCAN_CFG_CMD),
325 HCMD_NAME(SCAN_REQ_UMAC),
326 HCMD_NAME(SCAN_ABORT_UMAC),
327 HCMD_NAME(SCAN_COMPLETE_UMAC),
328 HCMD_NAME(TOF_CMD),
329 HCMD_NAME(TOF_NOTIFICATION),
3af512d6 330 HCMD_NAME(BA_WINDOW_STATUS_NOTIFICATION_ID),
39bdb17e
SD
331 HCMD_NAME(ADD_STA_KEY),
332 HCMD_NAME(ADD_STA),
333 HCMD_NAME(REMOVE_STA),
334 HCMD_NAME(FW_GET_ITEM_CMD),
335 HCMD_NAME(TX_CMD),
336 HCMD_NAME(SCD_QUEUE_CFG),
337 HCMD_NAME(TXPATH_FLUSH),
338 HCMD_NAME(MGMT_MCAST_KEY),
339 HCMD_NAME(WEP_KEY),
340 HCMD_NAME(SHARED_MEM_CFG),
341 HCMD_NAME(TDLS_CHANNEL_SWITCH_CMD),
342 HCMD_NAME(MAC_CONTEXT_CMD),
343 HCMD_NAME(TIME_EVENT_CMD),
344 HCMD_NAME(TIME_EVENT_NOTIFICATION),
345 HCMD_NAME(BINDING_CONTEXT_CMD),
346 HCMD_NAME(TIME_QUOTA_CMD),
347 HCMD_NAME(NON_QOS_TX_COUNTER_CMD),
348 HCMD_NAME(LQ_CMD),
349 HCMD_NAME(FW_PAGING_BLOCK_CMD),
350 HCMD_NAME(SCAN_OFFLOAD_REQUEST_CMD),
351 HCMD_NAME(SCAN_OFFLOAD_ABORT_CMD),
352 HCMD_NAME(HOT_SPOT_CMD),
353 HCMD_NAME(SCAN_OFFLOAD_PROFILES_QUERY_CMD),
354 HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_CONFIG_CMD),
355 HCMD_NAME(SCAN_OFFLOAD_HOTSPOTS_QUERY_CMD),
356 HCMD_NAME(BT_COEX_UPDATE_SW_BOOST),
357 HCMD_NAME(BT_COEX_UPDATE_CORUN_LUT),
358 HCMD_NAME(BT_COEX_UPDATE_REDUCED_TXP),
359 HCMD_NAME(BT_COEX_CI),
360 HCMD_NAME(PHY_CONFIGURATION_CMD),
361 HCMD_NAME(CALIB_RES_NOTIF_PHY_DB),
362 HCMD_NAME(SCAN_OFFLOAD_COMPLETE),
363 HCMD_NAME(SCAN_OFFLOAD_UPDATE_PROFILES_CMD),
364 HCMD_NAME(SCAN_OFFLOAD_CONFIG_CMD),
365 HCMD_NAME(POWER_TABLE_CMD),
366 HCMD_NAME(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION),
367 HCMD_NAME(REPLY_THERMAL_MNG_BACKOFF),
368 HCMD_NAME(DC2DC_CONFIG_CMD),
369 HCMD_NAME(NVM_ACCESS_CMD),
370 HCMD_NAME(SET_CALIB_DEFAULT_CMD),
371 HCMD_NAME(BEACON_NOTIFICATION),
372 HCMD_NAME(BEACON_TEMPLATE_CMD),
373 HCMD_NAME(TX_ANT_CONFIGURATION_CMD),
374 HCMD_NAME(BT_CONFIG),
375 HCMD_NAME(STATISTICS_CMD),
376 HCMD_NAME(STATISTICS_NOTIFICATION),
377 HCMD_NAME(EOSP_NOTIFICATION),
378 HCMD_NAME(REDUCE_TX_POWER_CMD),
379 HCMD_NAME(CARD_STATE_CMD),
380 HCMD_NAME(CARD_STATE_NOTIFICATION),
381 HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
382 HCMD_NAME(TDLS_CONFIG_CMD),
383 HCMD_NAME(MAC_PM_POWER_TABLE),
384 HCMD_NAME(TDLS_CHANNEL_SWITCH_NOTIFICATION),
385 HCMD_NAME(MFUART_LOAD_NOTIFICATION),
43413a97 386 HCMD_NAME(RSS_CONFIG_CMD),
39bdb17e
SD
387 HCMD_NAME(SCAN_ITERATION_COMPLETE_UMAC),
388 HCMD_NAME(REPLY_RX_PHY_CMD),
389 HCMD_NAME(REPLY_RX_MPDU_CMD),
390 HCMD_NAME(BA_NOTIF),
391 HCMD_NAME(MCC_UPDATE_CMD),
392 HCMD_NAME(MCC_CHUB_UPDATE_CMD),
393 HCMD_NAME(MARKER_CMD),
394 HCMD_NAME(BT_COEX_PRIO_TABLE),
395 HCMD_NAME(BT_COEX_PROT_ENV),
396 HCMD_NAME(BT_PROFILE_NOTIFICATION),
397 HCMD_NAME(BCAST_FILTER_CMD),
398 HCMD_NAME(MCAST_FILTER_CMD),
399 HCMD_NAME(REPLY_SF_CFG_CMD),
400 HCMD_NAME(REPLY_BEACON_FILTERING_CMD),
401 HCMD_NAME(D3_CONFIG_CMD),
402 HCMD_NAME(PROT_OFFLOAD_CONFIG_CMD),
403 HCMD_NAME(OFFLOADS_QUERY_CMD),
404 HCMD_NAME(REMOTE_WAKE_CONFIG_CMD),
405 HCMD_NAME(MATCH_FOUND_NOTIFICATION),
406 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER),
407 HCMD_NAME(DTS_MEASUREMENT_NOTIFICATION),
408 HCMD_NAME(WOWLAN_PATTERNS),
409 HCMD_NAME(WOWLAN_CONFIGURATION),
410 HCMD_NAME(WOWLAN_TSC_RSC_PARAM),
411 HCMD_NAME(WOWLAN_TKIP_PARAM),
412 HCMD_NAME(WOWLAN_KEK_KCK_MATERIAL),
413 HCMD_NAME(WOWLAN_GET_STATUSES),
414 HCMD_NAME(WOWLAN_TX_POWER_PER_DB),
415 HCMD_NAME(SCAN_ITERATION_COMPLETE),
416 HCMD_NAME(D0I3_END_CMD),
417 HCMD_NAME(LTR_CONFIG),
418 HCMD_NAME(REPLY_DEBUG_CMD),
8ca151b5 419};
39bdb17e 420
5b086414
GBA
421/* Please keep this array *SORTED* by hex value.
422 * Access is done through binary search
423 */
424static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
425 HCMD_NAME(SHARED_MEM_CFG_CMD),
426};
427
03098268
AE
428/* Please keep this array *SORTED* by hex value.
429 * Access is done through binary search
430 */
431static const struct iwl_hcmd_names iwl_mvm_mac_conf_names[] = {
432 HCMD_NAME(LINK_QUALITY_MEASUREMENT_CMD),
433 HCMD_NAME(LINK_QUALITY_MEASUREMENT_COMPLETE_NOTIF),
d3a108a4 434 HCMD_NAME(CHANNEL_SWITCH_NOA_NOTIF),
03098268
AE
435};
436
39bdb17e
SD
437/* Please keep this array *SORTED* by hex value.
438 * Access is done through binary search
439 */
440static const struct iwl_hcmd_names iwl_mvm_phy_names[] = {
441 HCMD_NAME(CMD_DTS_MEASUREMENT_TRIGGER_WIDE),
5c89e7bc 442 HCMD_NAME(CTDP_CONFIG_CMD),
c221daf2 443 HCMD_NAME(TEMP_REPORTING_THRESHOLDS_CMD),
0a3b7119 444 HCMD_NAME(CT_KILL_NOTIFICATION),
39bdb17e
SD
445 HCMD_NAME(DTS_MEASUREMENT_NOTIF_WIDE),
446};
447
e0d8fdec
SS
448/* Please keep this array *SORTED* by hex value.
449 * Access is done through binary search
450 */
451static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
452 HCMD_NAME(UPDATE_MU_GROUPS_CMD),
94bb4481 453 HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
f92659a1 454 HCMD_NAME(MU_GROUP_MGMT_NOTIF),
94bb4481 455 HCMD_NAME(RX_QUEUES_NOTIFICATION),
e0d8fdec
SS
456};
457
0db056d3
SS
458/* Please keep this array *SORTED* by hex value.
459 * Access is done through binary search
460 */
461static const struct iwl_hcmd_names iwl_mvm_prot_offload_names[] = {
462 HCMD_NAME(STORED_BEACON_NTF),
463};
464
39bdb17e
SD
465static const struct iwl_hcmd_arr iwl_mvm_groups[] = {
466 [LEGACY_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
467 [LONG_GROUP] = HCMD_ARR(iwl_mvm_legacy_names),
5b086414 468 [SYSTEM_GROUP] = HCMD_ARR(iwl_mvm_system_names),
03098268 469 [MAC_CONF_GROUP] = HCMD_ARR(iwl_mvm_mac_conf_names),
39bdb17e 470 [PHY_OPS_GROUP] = HCMD_ARR(iwl_mvm_phy_names),
e0d8fdec 471 [DATA_PATH_GROUP] = HCMD_ARR(iwl_mvm_data_path_names),
0db056d3 472 [PROT_OFFLOAD_GROUP] = HCMD_ARR(iwl_mvm_prot_offload_names),
39bdb17e
SD
473};
474
8ca151b5
JB
475/* this forward declaration can avoid to export the function */
476static void iwl_mvm_async_handlers_wk(struct work_struct *wk);
37577fe2 477static void iwl_mvm_d0i3_exit_work(struct work_struct *wk);
8ca151b5 478
0c0e2c71
IY
479static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg)
480{
481 const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs;
482
483 if (!pwr_tx_backoff)
484 return 0;
485
486 while (pwr_tx_backoff->pwr) {
487 if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr)
488 return pwr_tx_backoff->backoff;
489
490 pwr_tx_backoff++;
491 }
492
493 return 0;
494}
495
4bfa47f3
EG
496static void iwl_mvm_fw_error_dump_wk(struct work_struct *work);
497
d3a108a4
AO
498static void iwl_mvm_tx_unblock_dwork(struct work_struct *work)
499{
500 struct iwl_mvm *mvm =
501 container_of(work, struct iwl_mvm, cs_tx_unblock_dwork.work);
502 struct ieee80211_vif *tx_blocked_vif;
503 struct iwl_mvm_vif *mvmvif;
504
505 mutex_lock(&mvm->mutex);
506
507 tx_blocked_vif =
508 rcu_dereference_protected(mvm->csa_tx_blocked_vif,
509 lockdep_is_held(&mvm->mutex));
510
511 if (!tx_blocked_vif)
512 goto unlock;
513
514 mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
515 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false);
516 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
517unlock:
518 mutex_unlock(&mvm->mutex);
519}
520
8ca151b5
JB
521static struct iwl_op_mode *
522iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
523 const struct iwl_fw *fw, struct dentry *dbgfs_dir)
524{
525 struct ieee80211_hw *hw;
526 struct iwl_op_mode *op_mode;
527 struct iwl_mvm *mvm;
528 struct iwl_trans_config trans_cfg = {};
529 static const u8 no_reclaim_cmds[] = {
530 TX_CMD,
531 };
532 int err, scan_size;
0c0e2c71 533 u32 min_backoff;
8ca151b5 534
c4d83271
EG
535 /*
536 * We use IWL_MVM_STATION_COUNT to check the validity of the station
537 * index all over the driver - check that its value corresponds to the
538 * array size.
539 */
540 BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT);
541
8ca151b5
JB
542 /********************************
543 * 1. Allocating and configuring HW data
544 ********************************/
545 hw = ieee80211_alloc_hw(sizeof(struct iwl_op_mode) +
546 sizeof(struct iwl_mvm),
547 &iwl_mvm_hw_ops);
548 if (!hw)
549 return NULL;
550
745160ee
OG
551 if (cfg->max_rx_agg_size)
552 hw->max_rx_aggregation_subframes = cfg->max_rx_agg_size;
553
77d96730
GG
554 if (cfg->max_tx_agg_size)
555 hw->max_tx_aggregation_subframes = cfg->max_tx_agg_size;
556
8ca151b5 557 op_mode = hw->priv;
8ca151b5
JB
558
559 mvm = IWL_OP_MODE_GET_MVM(op_mode);
560 mvm->dev = trans->dev;
561 mvm->trans = trans;
562 mvm->cfg = cfg;
563 mvm->fw = fw;
564 mvm->hw = hw;
565
0316d30e
JB
566 if (iwl_mvm_has_new_rx_api(mvm)) {
567 op_mode->ops = &iwl_mvm_ops_mq;
25c2b22c 568 trans->rx_mpdu_cmd_hdr_size = sizeof(struct iwl_rx_mpdu_desc);
0316d30e
JB
569 } else {
570 op_mode->ops = &iwl_mvm_ops;
25c2b22c
SS
571 trans->rx_mpdu_cmd_hdr_size =
572 sizeof(struct iwl_rx_mpdu_res_start);
0316d30e
JB
573
574 if (WARN_ON(trans->num_rx_queues > 1))
575 goto out_free;
576 }
577
291aa7c4
EH
578 mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
579
19e737c9 580 mvm->aux_queue = 15;
cf961e16
LK
581 if (!iwl_mvm_is_dqa_supported(mvm)) {
582 mvm->first_agg_queue = 16;
583 mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
584 } else {
585 mvm->first_agg_queue = IWL_MVM_DQA_MIN_DATA_QUEUE;
586 mvm->last_agg_queue = IWL_MVM_DQA_MAX_DATA_QUEUE;
587 }
19e737c9
EL
588 if (mvm->cfg->base_params->num_of_queues == 16) {
589 mvm->aux_queue = 11;
590 mvm->first_agg_queue = 12;
591 }
1f3b0ff8 592 mvm->sf_state = SF_UNINIT;
7b358f06 593 mvm->cur_ucode = IWL_UCODE_INIT;
c89e333d 594 mvm->drop_bcn_ap_mode = true;
19e737c9 595
8ca151b5 596 mutex_init(&mvm->mutex);
d15a747f 597 mutex_init(&mvm->d0i3_suspend_mutex);
8ca151b5
JB
598 spin_lock_init(&mvm->async_handlers_lock);
599 INIT_LIST_HEAD(&mvm->time_event_list);
b112889c 600 INIT_LIST_HEAD(&mvm->aux_roc_te_list);
8ca151b5
JB
601 INIT_LIST_HEAD(&mvm->async_handlers_list);
602 spin_lock_init(&mvm->time_event_lock);
4ecafae9 603 spin_lock_init(&mvm->queue_info_lock);
8ca151b5
JB
604
605 INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
606 INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
607 INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk);
37577fe2 608 INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work);
d2709ad7 609 INIT_DELAYED_WORK(&mvm->fw_dump_wk, iwl_mvm_fw_error_dump_wk);
1d3c3f63 610 INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
24afba76 611 INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
8ca151b5 612
b2492501 613 spin_lock_init(&mvm->d0i3_tx_lock);
576eeee9 614 spin_lock_init(&mvm->refs_lock);
b2492501
AN
615 skb_queue_head_init(&mvm->d0i3_tx);
616 init_waitqueue_head(&mvm->d0i3_exit_waitq);
617
0636b938
SS
618 atomic_set(&mvm->queue_sync_counter, 0);
619
8ca151b5
JB
620 SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev);
621
d3a108a4
AO
622 INIT_DELAYED_WORK(&mvm->cs_tx_unblock_dwork, iwl_mvm_tx_unblock_dwork);
623
8ca151b5
JB
624 /*
625 * Populate the state variables that the transport layer needs
626 * to know about.
627 */
628 trans_cfg.op_mode = op_mode;
629 trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
630 trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
6c4fbcbc 631 switch (iwlwifi_mod_params.amsdu_size) {
4bdd4dfe 632 case IWL_AMSDU_DEF:
6c4fbcbc
EG
633 case IWL_AMSDU_4K:
634 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
635 break;
636 case IWL_AMSDU_8K:
637 trans_cfg.rx_buf_size = IWL_AMSDU_8K;
638 break;
639 case IWL_AMSDU_12K:
640 trans_cfg.rx_buf_size = IWL_AMSDU_12K;
641 break;
642 default:
643 pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
644 iwlwifi_mod_params.amsdu_size);
645 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
646 }
4bdd4dfe
EG
647
648 /* the hardware splits the A-MSDU */
649 if (mvm->cfg->mq_rx_supported)
650 trans_cfg.rx_buf_size = IWL_AMSDU_4K;
ab02165c
AE
651 trans_cfg.wide_cmd_header = fw_has_api(&mvm->fw->ucode_capa,
652 IWL_UCODE_TLV_API_WIDE_CMD_HDR);
8ca151b5 653
25b9ea5c 654 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DW_BC_TABLE)
8ca151b5
JB
655 trans_cfg.bc_table_dword = true;
656
39bdb17e
SD
657 trans_cfg.command_groups = iwl_mvm_groups;
658 trans_cfg.command_groups_size = ARRAY_SIZE(iwl_mvm_groups);
8ca151b5 659
097129c9
LK
660 if (iwl_mvm_is_dqa_supported(mvm))
661 trans_cfg.cmd_queue = IWL_MVM_DQA_CMD_QUEUE;
662 else
663 trans_cfg.cmd_queue = IWL_MVM_CMD_QUEUE;
b2d81db7 664 trans_cfg.cmd_fifo = IWL_MVM_TX_FIFO_CMD;
3a736bcb 665 trans_cfg.scd_set_active = true;
8ca151b5 666
b4821767 667 trans_cfg.sdio_adma_addr = fw->sdio_adma_addr;
41837ca9 668 trans_cfg.sw_csum_tx = IWL_MVM_SW_TX_CSUM_OFFLOAD;
b4821767 669
4cf677fd
EG
670 /* Set a short watchdog for the command queue */
671 trans_cfg.cmd_q_wdg_timeout =
5d42e7b2 672 iwl_mvm_get_wd_timeout(mvm, NULL, false, true);
4cf677fd 673
8ca151b5
JB
674 snprintf(mvm->hw->wiphy->fw_version,
675 sizeof(mvm->hw->wiphy->fw_version),
676 "%s", fw->fw_version);
677
678 /* Configure transport layer */
679 iwl_trans_configure(mvm->trans, &trans_cfg);
680
681 trans->rx_mpdu_cmd = REPLY_RX_MPDU_CMD;
09e350f7
LK
682 trans->dbg_dest_tlv = mvm->fw->dbg_dest_tlv;
683 trans->dbg_dest_reg_num = mvm->fw->dbg_dest_reg_num;
684 memcpy(trans->dbg_conf_tlv, mvm->fw->dbg_conf_tlv,
685 sizeof(trans->dbg_conf_tlv));
d2709ad7 686 trans->dbg_trigger_tlv = mvm->fw->dbg_trigger_tlv;
8ca151b5
JB
687
688 /* set up notification wait support */
689 iwl_notification_wait_init(&mvm->notif_wait);
690
691 /* Init phy db */
692 mvm->phy_db = iwl_phy_db_init(trans);
693 if (!mvm->phy_db) {
694 IWL_ERR(mvm, "Cannot init phy_db\n");
695 goto out_free;
696 }
697
698 IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
699 mvm->cfg->name, mvm->trans->hw_rev);
700
4fb06283 701 if (iwlwifi_mod_params.nvm_file)
e02a9d60 702 mvm->nvm_file_name = iwlwifi_mod_params.nvm_file;
4fb06283
EH
703 else
704 IWL_DEBUG_EEPROM(mvm->trans->dev,
705 "working without external nvm file\n");
9ee718aa 706
e02a9d60 707 if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name,
14b485f0
EH
708 "not allowing power-up and not having nvm_file\n"))
709 goto out_free;
710
81a67e32 711 /*
0ade579c 712 * Even if nvm exists in the nvm_file driver should read again the nvm
14b485f0
EH
713 * from the nic because there might be entries that exist in the OTP
714 * and not in the file.
715 * for nics with no_power_up_nic_in_init: rely completley on nvm_file
81a67e32 716 */
e02a9d60 717 if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) {
14b485f0 718 err = iwl_nvm_init(mvm, false);
8c678ed4
EP
719 if (err)
720 goto out_free;
81a67e32
EL
721 } else {
722 err = iwl_trans_start_hw(mvm->trans);
723 if (err)
724 goto out_free;
725
726 mutex_lock(&mvm->mutex);
08f0d23d 727 iwl_mvm_ref(mvm, IWL_MVM_REF_INIT_UCODE);
81a67e32 728 err = iwl_run_init_mvm_ucode(mvm, true);
b93b1fe3 729 if (!err || !iwlmvm_mod_params.init_dbg)
fcb6b92a 730 iwl_mvm_stop_device(mvm);
08f0d23d 731 iwl_mvm_unref(mvm, IWL_MVM_REF_INIT_UCODE);
81a67e32
EL
732 mutex_unlock(&mvm->mutex);
733 /* returns 0 if successful, 1 if success but in rfkill */
734 if (err < 0 && !iwlmvm_mod_params.init_dbg) {
735 IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
736 goto out_free;
737 }
8ca151b5
JB
738 }
739
d2496221 740 scan_size = iwl_mvm_scan_size(mvm);
fb98be5e 741
8ca151b5
JB
742 mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
743 if (!mvm->scan_cmd)
744 goto out_free;
745
5a4b2afa
HD
746 /* Set EBS as successful as long as not stated otherwise by the FW. */
747 mvm->last_ebs_successful = true;
748
8ca151b5
JB
749 err = iwl_mvm_mac_setup_register(mvm);
750 if (err)
751 goto out_free;
752
04ddc2aa
CRI
753 min_backoff = calc_min_backoff(trans, cfg);
754 iwl_mvm_thermal_initialize(mvm, min_backoff);
755
8ca151b5
JB
756 err = iwl_mvm_dbgfs_register(mvm, dbgfs_dir);
757 if (err)
758 goto out_unregister;
759
3848ab66
MG
760 memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx));
761
33c85ead
LC
762 /* The transport always starts with a taken reference, we can
763 * release it now if d0i3 is supported */
764 if (iwl_mvm_is_d0i3_supported(mvm))
765 iwl_trans_unref(mvm->trans);
7498cf4c 766
ce792918
GG
767 iwl_mvm_tof_init(mvm);
768
728e825f
LC
769 setup_timer(&mvm->scan_timer, iwl_mvm_scan_timeout,
770 (unsigned long)mvm);
771
8ca151b5
JB
772 return op_mode;
773
774 out_unregister:
775 ieee80211_unregister_hw(mvm->hw);
91b0d119 776 iwl_mvm_leds_exit(mvm);
c221daf2 777 iwl_mvm_thermal_exit(mvm);
8ca151b5 778 out_free:
dbf73d4a 779 flush_delayed_work(&mvm->fw_dump_wk);
8ca151b5
JB
780 iwl_phy_db_free(mvm->phy_db);
781 kfree(mvm->scan_cmd);
e02a9d60 782 if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name)
a4082843 783 iwl_trans_op_mode_leave(trans);
8ca151b5
JB
784 ieee80211_free_hw(mvm->hw);
785 return NULL;
786}
787
788static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
789{
790 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
791 int i;
792
e27deb45
LC
793 /* If d0i3 is supported, we have released the reference that
794 * the transport started with, so we should take it back now
795 * that we are leaving.
796 */
797 if (iwl_mvm_is_d0i3_supported(mvm))
798 iwl_trans_ref(mvm->trans);
799
8ca151b5
JB
800 iwl_mvm_leds_exit(mvm);
801
c221daf2 802 iwl_mvm_thermal_exit(mvm);
9ee718aa 803
8ca151b5
JB
804 ieee80211_unregister_hw(mvm->hw);
805
806 kfree(mvm->scan_cmd);
e59647ea
EP
807 kfree(mvm->mcast_filter_cmd);
808 mvm->mcast_filter_cmd = NULL;
8ca151b5 809
afc66bb7
JB
810#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS)
811 kfree(mvm->d3_resume_sram);
812#endif
813
a4082843 814 iwl_trans_op_mode_leave(mvm->trans);
8ca151b5
JB
815
816 iwl_phy_db_free(mvm->phy_db);
817 mvm->phy_db = NULL;
818
8ca151b5 819 iwl_free_nvm_data(mvm->nvm_data);
ae2b21b0 820 for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
8ca151b5
JB
821 kfree(mvm->nvm_sections[i].data);
822
ce792918
GG
823 iwl_mvm_tof_clean(mvm);
824
728e825f
LC
825 del_timer_sync(&mvm->scan_timer);
826
a2a57a35
EG
827 mutex_destroy(&mvm->mutex);
828 mutex_destroy(&mvm->d0i3_suspend_mutex);
829
8ca151b5
JB
830 ieee80211_free_hw(mvm->hw);
831}
832
833struct iwl_async_handler_entry {
834 struct list_head list;
835 struct iwl_rx_cmd_buffer rxb;
c9cb14a6 836 enum iwl_rx_handler_context context;
0416841d 837 void (*fn)(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb);
8ca151b5
JB
838};
839
840void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm)
841{
842 struct iwl_async_handler_entry *entry, *tmp;
843
844 spin_lock_bh(&mvm->async_handlers_lock);
845 list_for_each_entry_safe(entry, tmp, &mvm->async_handlers_list, list) {
846 iwl_free_rxb(&entry->rxb);
847 list_del(&entry->list);
848 kfree(entry);
849 }
850 spin_unlock_bh(&mvm->async_handlers_lock);
851}
852
853static void iwl_mvm_async_handlers_wk(struct work_struct *wk)
854{
855 struct iwl_mvm *mvm =
856 container_of(wk, struct iwl_mvm, async_handlers_wk);
857 struct iwl_async_handler_entry *entry, *tmp;
858 struct list_head local_list;
859
860 INIT_LIST_HEAD(&local_list);
861
862 /* Ensure that we are not in stop flow (check iwl_mvm_mac_stop) */
8ca151b5
JB
863
864 /*
865 * Sync with Rx path with a lock. Remove all the entries from this list,
866 * add them to a local one (lock free), and then handle them.
867 */
868 spin_lock_bh(&mvm->async_handlers_lock);
869 list_splice_init(&mvm->async_handlers_list, &local_list);
870 spin_unlock_bh(&mvm->async_handlers_lock);
871
872 list_for_each_entry_safe(entry, tmp, &local_list, list) {
c9cb14a6
CRI
873 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
874 mutex_lock(&mvm->mutex);
0416841d 875 entry->fn(mvm, &entry->rxb);
8ca151b5
JB
876 iwl_free_rxb(&entry->rxb);
877 list_del(&entry->list);
c9cb14a6
CRI
878 if (entry->context == RX_HANDLER_ASYNC_LOCKED)
879 mutex_unlock(&mvm->mutex);
8ca151b5
JB
880 kfree(entry);
881 }
8ca151b5
JB
882}
883
917f39bb
EG
884static inline void iwl_mvm_rx_check_trigger(struct iwl_mvm *mvm,
885 struct iwl_rx_packet *pkt)
886{
887 struct iwl_fw_dbg_trigger_tlv *trig;
888 struct iwl_fw_dbg_trigger_cmd *cmds_trig;
917f39bb
EG
889 int i;
890
891 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF))
892 return;
893
894 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_FW_NOTIF);
895 cmds_trig = (void *)trig->data;
896
897 if (!iwl_fw_dbg_trigger_check_stop(mvm, NULL, trig))
898 return;
899
900 for (i = 0; i < ARRAY_SIZE(cmds_trig->cmds); i++) {
901 /* don't collect on CMD 0 */
902 if (!cmds_trig->cmds[i].cmd_id)
903 break;
904
0ab66e6d
SS
905 if (cmds_trig->cmds[i].cmd_id != pkt->hdr.cmd ||
906 cmds_trig->cmds[i].group_id != pkt->hdr.group_id)
917f39bb
EG
907 continue;
908
5d4f929e 909 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
0ab66e6d
SS
910 "CMD 0x%02x.%02x received",
911 pkt->hdr.group_id, pkt->hdr.cmd);
917f39bb
EG
912 break;
913 }
914}
915
0316d30e
JB
916static void iwl_mvm_rx_common(struct iwl_mvm *mvm,
917 struct iwl_rx_cmd_buffer *rxb,
918 struct iwl_rx_packet *pkt)
8ca151b5 919{
0316d30e 920 int i;
1738d60b 921
917f39bb
EG
922 iwl_mvm_rx_check_trigger(mvm, pkt);
923
8ca151b5
JB
924 /*
925 * Do the notification wait before RX handlers so
926 * even if the RX handler consumes the RXB we have
927 * access to it in the notification wait entry.
928 */
929 iwl_notification_wait_notify(&mvm->notif_wait, pkt);
930
931 for (i = 0; i < ARRAY_SIZE(iwl_mvm_rx_handlers); i++) {
932 const struct iwl_rx_handlers *rx_h = &iwl_mvm_rx_handlers[i];
36eed56a
EG
933 struct iwl_async_handler_entry *entry;
934
1230b16b 935 if (rx_h->cmd_id != WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd))
36eed56a
EG
936 continue;
937
c9cb14a6 938 if (rx_h->context == RX_HANDLER_SYNC) {
0416841d 939 rx_h->fn(mvm, rxb);
f7e6469f 940 return;
0416841d 941 }
36eed56a
EG
942
943 entry = kzalloc(sizeof(*entry), GFP_ATOMIC);
944 /* we can't do much... */
945 if (!entry)
f7e6469f 946 return;
36eed56a
EG
947
948 entry->rxb._page = rxb_steal_page(rxb);
949 entry->rxb._offset = rxb->_offset;
950 entry->rxb._rx_page_order = rxb->_rx_page_order;
951 entry->fn = rx_h->fn;
c9cb14a6 952 entry->context = rx_h->context;
36eed56a
EG
953 spin_lock(&mvm->async_handlers_lock);
954 list_add_tail(&entry->list, &mvm->async_handlers_list);
955 spin_unlock(&mvm->async_handlers_lock);
956 schedule_work(&mvm->async_handlers_wk);
957 break;
8ca151b5 958 }
8ca151b5
JB
959}
960
0316d30e
JB
961static void iwl_mvm_rx(struct iwl_op_mode *op_mode,
962 struct napi_struct *napi,
963 struct iwl_rx_cmd_buffer *rxb)
964{
965 struct iwl_rx_packet *pkt = rxb_addr(rxb);
966 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
967
968 if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
969 iwl_mvm_rx_rx_mpdu(mvm, napi, rxb);
970 else if (pkt->hdr.cmd == REPLY_RX_PHY_CMD)
971 iwl_mvm_rx_rx_phy_cmd(mvm, rxb);
972 else
973 iwl_mvm_rx_common(mvm, rxb, pkt);
974}
975
976static void iwl_mvm_rx_mq(struct iwl_op_mode *op_mode,
977 struct napi_struct *napi,
978 struct iwl_rx_cmd_buffer *rxb)
979{
980 struct iwl_rx_packet *pkt = rxb_addr(rxb);
981 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
982
983 if (likely(pkt->hdr.cmd == REPLY_RX_MPDU_CMD))
780e87c2 984 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, 0);
94bb4481
SS
985 else if (unlikely(pkt->hdr.group_id == DATA_PATH_GROUP &&
986 pkt->hdr.cmd == RX_QUEUES_NOTIFICATION))
987 iwl_mvm_rx_queue_notif(mvm, rxb, 0);
58035432
JB
988 else if (pkt->hdr.cmd == FRAME_RELEASE)
989 iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
0316d30e
JB
990 else
991 iwl_mvm_rx_common(mvm, rxb, pkt);
992}
993
b4f7a9d1 994void iwl_mvm_stop_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
8ca151b5 995{
4ecafae9 996 int q;
8ca151b5 997
4ecafae9 998 if (WARN_ON_ONCE(!mq))
8ca151b5 999 return;
8ca151b5 1000
4ecafae9
LK
1001 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1002 if (atomic_inc_return(&mvm->mac80211_queue_stop_count[q]) > 1) {
1003 IWL_DEBUG_TX_QUEUES(mvm,
b4f7a9d1 1004 "mac80211 %d already stopped\n", q);
4ecafae9
LK
1005 continue;
1006 }
1007
1008 ieee80211_stop_queue(mvm->hw, q);
1009 }
8ca151b5
JB
1010}
1011
156f92f2
EG
1012static void iwl_mvm_async_cb(struct iwl_op_mode *op_mode,
1013 const struct iwl_device_cmd *cmd)
1014{
1015 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1016
1017 /*
1018 * For now, we only set the CMD_WANT_ASYNC_CALLBACK for ADD_STA
1019 * commands that need to block the Tx queues.
1020 */
1021 iwl_trans_block_txq_ptrs(mvm->trans, false);
1022}
1023
b4f7a9d1 1024static void iwl_mvm_stop_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
8ca151b5
JB
1025{
1026 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
4ecafae9 1027 unsigned long mq;
8ca151b5 1028
4ecafae9 1029 spin_lock_bh(&mvm->queue_info_lock);
b4f7a9d1 1030 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
4ecafae9 1031 spin_unlock_bh(&mvm->queue_info_lock);
8ca151b5 1032
b4f7a9d1
LK
1033 iwl_mvm_stop_mac_queues(mvm, mq);
1034}
1035
1036void iwl_mvm_start_mac_queues(struct iwl_mvm *mvm, unsigned long mq)
1037{
1038 int q;
1039
4ecafae9 1040 if (WARN_ON_ONCE(!mq))
8ca151b5 1041 return;
8ca151b5 1042
4ecafae9
LK
1043 for_each_set_bit(q, &mq, IEEE80211_MAX_QUEUES) {
1044 if (atomic_dec_return(&mvm->mac80211_queue_stop_count[q]) > 0) {
1045 IWL_DEBUG_TX_QUEUES(mvm,
b4f7a9d1 1046 "mac80211 %d still stopped\n", q);
4ecafae9
LK
1047 continue;
1048 }
1049
1050 ieee80211_wake_queue(mvm->hw, q);
1051 }
8ca151b5
JB
1052}
1053
b4f7a9d1
LK
1054static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int hw_queue)
1055{
1056 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1057 unsigned long mq;
1058
1059 spin_lock_bh(&mvm->queue_info_lock);
1060 mq = mvm->queue_info[hw_queue].hw_queue_to_mac80211;
1061 spin_unlock_bh(&mvm->queue_info_lock);
1062
1063 iwl_mvm_start_mac_queues(mvm, mq);
1064}
1065
9ee718aa
EL
1066void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
1067{
1068 if (state)
1069 set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1070 else
1071 clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
1072
1073 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
1074}
1075
14cfca71 1076static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
8ca151b5
JB
1077{
1078 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
31b8b343 1079 bool calibrating = ACCESS_ONCE(mvm->calibrating);
8ca151b5
JB
1080
1081 if (state)
1082 set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1083 else
1084 clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
1085
9ee718aa 1086 wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm));
14cfca71 1087
31b8b343
EG
1088 /* iwl_run_init_mvm_ucode is waiting for results, abort it */
1089 if (calibrating)
1090 iwl_abort_notification_waits(&mvm->notif_wait);
1091
1092 /*
1093 * Stop the device if we run OPERATIONAL firmware or if we are in the
1094 * middle of the calibrations.
1095 */
1096 return state && (mvm->cur_ucode != IWL_UCODE_INIT || calibrating);
8ca151b5
JB
1097}
1098
1099static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb)
1100{
1101 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1102 struct ieee80211_tx_info *info;
1103
1104 info = IEEE80211_SKB_CB(skb);
1105 iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]);
1106 ieee80211_free_txskb(mvm->hw, skb);
1107}
1108
ac1ed416
JB
1109struct iwl_mvm_reprobe {
1110 struct device *dev;
1111 struct work_struct work;
1112};
1113
1114static void iwl_mvm_reprobe_wk(struct work_struct *wk)
1115{
1116 struct iwl_mvm_reprobe *reprobe;
1117
1118 reprobe = container_of(wk, struct iwl_mvm_reprobe, work);
1119 if (device_reprobe(reprobe->dev))
1120 dev_err(reprobe->dev, "reprobe failed!\n");
1121 kfree(reprobe);
1122 module_put(THIS_MODULE);
1123}
1124
4bfa47f3
EG
1125static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
1126{
1127 struct iwl_mvm *mvm =
d2709ad7 1128 container_of(work, struct iwl_mvm, fw_dump_wk.work);
4bfa47f3 1129
fb2380a2
LK
1130 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
1131 return;
1132
4bfa47f3 1133 mutex_lock(&mvm->mutex);
145d90b6
EG
1134
1135 /* stop recording */
1136 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
1137 iwl_set_bits_prph(mvm->trans, MON_BUFF_SAMPLE_CTL, 0x100);
1138 } else {
1139 iwl_write_prph(mvm->trans, DBGC_IN_SAMPLE, 0);
1140 /* wait before we collect the data till the DBGC stop */
1141 udelay(100);
1142 }
1143
4bfa47f3 1144 iwl_mvm_fw_error_dump(mvm);
e66e0b70
EG
1145
1146 /* start recording again if the firmware is not crashed */
1147 WARN_ON_ONCE((!test_bit(STATUS_FW_ERROR, &mvm->trans->status)) &&
9beda940
EG
1148 mvm->fw->dbg_dest_tlv &&
1149 iwl_mvm_start_fw_dbg_conf(mvm, mvm->fw_dbg_conf));
e66e0b70 1150
4bfa47f3 1151 mutex_unlock(&mvm->mutex);
fb2380a2
LK
1152
1153 iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
4bfa47f3
EG
1154}
1155
b08c1d97 1156void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
8ca151b5 1157{
8ca151b5
JB
1158 iwl_abort_notification_waits(&mvm->notif_wait);
1159
992f81fc
DS
1160 /*
1161 * This is a bit racy, but worst case we tell mac80211 about
1162 * a stopped/aborted scan when that was already done which
1163 * is not a problem. It is necessary to abort any os scan
1164 * here because mac80211 requires having the scan cleared
1165 * before restarting.
1166 * We'll reset the scan_status to NONE in restart cleanup in
1167 * the next start() call from mac80211. If restart isn't called
1168 * (no fw restart) scan status will stay busy.
1169 */
4ffb3650 1170 iwl_mvm_report_scan_aborted(mvm);
992f81fc 1171
8ca151b5
JB
1172 /*
1173 * If we're restarting already, don't cycle restarts.
1174 * If INIT fw asserted, it will likely fail again.
1175 * If WoWLAN fw asserted, don't restart either, mac80211
1176 * can't recover this since we're already half suspended.
1177 */
60f1071c 1178 if (!mvm->restart_fw && fw_error) {
36fb9017
OG
1179 iwl_mvm_fw_dbg_collect_desc(mvm, &iwl_mvm_dump_desc_assert,
1180 NULL);
60f1071c
LC
1181 } else if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1182 &mvm->status)) {
ac1ed416
JB
1183 struct iwl_mvm_reprobe *reprobe;
1184
1185 IWL_ERR(mvm,
1186 "Firmware error during reconfiguration - reprobe!\n");
1187
1188 /*
1189 * get a module reference to avoid doing this while unloading
1190 * anyway and to avoid scheduling a work with code that's
1191 * being removed.
1192 */
1193 if (!try_module_get(THIS_MODULE)) {
1194 IWL_ERR(mvm, "Module is being unloaded - abort\n");
1195 return;
1196 }
1197
1198 reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC);
1199 if (!reprobe) {
1200 module_put(THIS_MODULE);
1201 return;
1202 }
1203 reprobe->dev = mvm->trans->dev;
1204 INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk);
1205 schedule_work(&reprobe->work);
60f1071c 1206 } else if (mvm->cur_ucode == IWL_UCODE_REGULAR) {
7498cf4c
EP
1207 /* don't let the transport/FW power down */
1208 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1209
b08c1d97 1210 if (fw_error && mvm->restart_fw > 0)
291aa7c4 1211 mvm->restart_fw--;
8ca151b5
JB
1212 ieee80211_restart_hw(mvm->hw);
1213 }
1214}
1215
715c998f
EG
1216static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
1217{
1218 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1219
1220 iwl_mvm_dump_nic_error_log(mvm);
1bd3cbc1 1221
b08c1d97 1222 iwl_mvm_nic_restart(mvm, true);
715c998f
EG
1223}
1224
8ca151b5
JB
1225static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
1226{
715c998f
EG
1227 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1228
8ca151b5 1229 WARN_ON(1);
b08c1d97 1230 iwl_mvm_nic_restart(mvm, true);
8ca151b5
JB
1231}
1232
37577fe2
EP
1233struct iwl_d0i3_iter_data {
1234 struct iwl_mvm *mvm;
a3f7ba5c 1235 struct ieee80211_vif *connected_vif;
37577fe2
EP
1236 u8 ap_sta_id;
1237 u8 vif_count;
b2492501
AN
1238 u8 offloading_tid;
1239 bool disable_offloading;
37577fe2
EP
1240};
1241
b2492501
AN
1242static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm,
1243 struct ieee80211_vif *vif,
1244 struct iwl_d0i3_iter_data *iter_data)
1245{
1246 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
b2492501
AN
1247 struct iwl_mvm_sta *mvmsta;
1248 u32 available_tids = 0;
1249 u8 tid;
1250
1251 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION ||
1252 mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
1253 return false;
1254
13303c0f
SS
1255 mvmsta = iwl_mvm_sta_from_staid_rcu(mvm, mvmvif->ap_sta_id);
1256 if (!mvmsta)
b2492501
AN
1257 return false;
1258
b2492501
AN
1259 spin_lock_bh(&mvmsta->lock);
1260 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1261 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
1262
1263 /*
1264 * in case of pending tx packets, don't use this tid
1265 * for offloading in order to prevent reuse of the same
1266 * qos seq counters.
1267 */
1268 if (iwl_mvm_tid_queued(tid_data))
1269 continue;
1270
1271 if (tid_data->state != IWL_AGG_OFF)
1272 continue;
1273
1274 available_tids |= BIT(tid);
1275 }
1276 spin_unlock_bh(&mvmsta->lock);
1277
1278 /*
1279 * disallow protocol offloading if we have no available tid
1280 * (with no pending frames and no active aggregation,
1281 * as we don't handle "holes" properly - the scheduler needs the
1282 * frame's seq number and TFD index to match)
1283 */
1284 if (!available_tids)
1285 return true;
1286
1287 /* for simplicity, just use the first available tid */
1288 iter_data->offloading_tid = ffs(available_tids) - 1;
1289 return false;
1290}
1291
d6230972
EP
1292static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac,
1293 struct ieee80211_vif *vif)
1294{
37577fe2
EP
1295 struct iwl_d0i3_iter_data *data = _data;
1296 struct iwl_mvm *mvm = data->mvm;
1297 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
d6230972
EP
1298 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
1299
1300 IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr);
1301 if (vif->type != NL80211_IFTYPE_STATION ||
1302 !vif->bss_conf.assoc)
1303 return;
1304
b2492501
AN
1305 /*
1306 * in case of pending tx packets or active aggregations,
1307 * avoid offloading features in order to prevent reuse of
1308 * the same qos seq counters.
1309 */
1310 if (iwl_mvm_disallow_offloading(mvm, vif, data))
1311 data->disable_offloading = true;
1312
d6230972 1313 iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags);
c97dab40
SS
1314 iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading,
1315 false, flags);
d6230972
EP
1316
1317 /*
1318 * on init/association, mvm already configures POWER_TABLE_CMD
1319 * and REPLY_MCAST_FILTER_CMD, so currently don't
1320 * reconfigure them (we might want to use different
1321 * params later on, though).
1322 */
37577fe2
EP
1323 data->ap_sta_id = mvmvif->ap_sta_id;
1324 data->vif_count++;
a3f7ba5c
EP
1325
1326 /*
1327 * no new commands can be sent at this stage, so it's safe
1328 * to save the vif pointer during d0i3 entrance.
1329 */
1330 data->connected_vif = vif;
d6230972
EP
1331}
1332
1a95c8df 1333static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm,
c8b06a99 1334 struct iwl_wowlan_config_cmd *cmd,
1a95c8df
EP
1335 struct iwl_d0i3_iter_data *iter_data)
1336{
1337 struct ieee80211_sta *ap_sta;
1338 struct iwl_mvm_sta *mvm_ap_sta;
1339
1340 if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT)
1341 return;
1342
1343 rcu_read_lock();
1344
1345 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]);
1346 if (IS_ERR_OR_NULL(ap_sta))
1347 goto out;
1348
1349 mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
c8b06a99 1350 cmd->is_11n_connection = ap_sta->ht_cap.ht_supported;
b2492501 1351 cmd->offloading_tid = iter_data->offloading_tid;
70b4c536 1352 cmd->flags = ENABLE_L3_FILTERING | ENABLE_NBNS_FILTERING |
0db056d3 1353 ENABLE_DHCP_FILTERING | ENABLE_STORE_BEACON;
1a95c8df
EP
1354 /*
1355 * The d0i3 uCode takes care of the nonqos counters,
1356 * so configure only the qos seq ones.
1357 */
c8b06a99 1358 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, cmd);
1a95c8df
EP
1359out:
1360 rcu_read_unlock();
1361}
6735943f
EP
1362
1363int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode)
b3370d47
EP
1364{
1365 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
98ee7783 1366 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE;
b77f06d9 1367 int ret;
37577fe2
EP
1368 struct iwl_d0i3_iter_data d0i3_iter_data = {
1369 .mvm = mvm,
1370 };
c8b06a99
EG
1371 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1372 .wakeup_filter = cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME |
1373 IWL_WOWLAN_WAKEUP_BEACON_MISS |
0db056d3 1374 IWL_WOWLAN_WAKEUP_LINK_CHANGE),
b77f06d9 1375 };
98ee7783
AN
1376 struct iwl_d3_manager_config d3_cfg_cmd = {
1377 .min_sleep_time = cpu_to_le32(1000),
d9f1fc20 1378 .wakeup_flags = cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR),
98ee7783 1379 };
b3370d47
EP
1380
1381 IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n");
98ee7783 1382
08f0d23d
EP
1383 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1384 return -EINVAL;
1385
b2492501 1386 set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
b2492501 1387
f4cf8680
EP
1388 /*
1389 * iwl_mvm_ref_sync takes a reference before checking the flag.
1390 * so by checking there is no held reference we prevent a state
1391 * in which iwl_mvm_ref_sync continues successfully while we
1392 * configure the firmware to enter d0i3
1393 */
1394 if (iwl_mvm_ref_taken(mvm)) {
1395 IWL_DEBUG_RPM(mvm->trans, "abort d0i3 due to taken ref\n");
1396 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
caf1578a 1397 wake_up(&mvm->d0i3_exit_waitq);
f4cf8680
EP
1398 return 1;
1399 }
1400
d6230972
EP
1401 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1402 IEEE80211_IFACE_ITER_NORMAL,
1403 iwl_mvm_enter_d0i3_iterator,
37577fe2
EP
1404 &d0i3_iter_data);
1405 if (d0i3_iter_data.vif_count == 1) {
1406 mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id;
b2492501 1407 mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading;
37577fe2
EP
1408 } else {
1409 WARN_ON_ONCE(d0i3_iter_data.vif_count > 1);
1410 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
b2492501 1411 mvm->d0i3_offloading = false;
37577fe2 1412 }
d6230972 1413
ecc7c518
EG
1414 /* make sure we have no running tx while configuring the seqno */
1415 synchronize_net();
1416
eb3908d3
LC
1417 /* Flush the hw queues, in case something got queued during entry */
1418 ret = iwl_mvm_flush_tx_path(mvm, iwl_mvm_flushable_queues(mvm), flags);
1419 if (ret)
1420 return ret;
1421
183edd84
EP
1422 /* configure wowlan configuration only if needed */
1423 if (mvm->d0i3_ap_sta_id != IWL_MVM_STATION_COUNT) {
0db056d3
SS
1424 /* wake on beacons only if beacon storing isn't supported */
1425 if (!fw_has_capa(&mvm->fw->ucode_capa,
1426 IWL_UCODE_TLV_CAPA_BEACON_STORING))
1427 wowlan_config_cmd.wakeup_filter |=
1428 cpu_to_le32(IWL_WOWLAN_WAKEUP_BCN_FILTERING);
1429
a3f7ba5c
EP
1430 iwl_mvm_wowlan_config_key_params(mvm,
1431 d0i3_iter_data.connected_vif,
1432 true, flags);
1433
183edd84
EP
1434 iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd,
1435 &d0i3_iter_data);
1436
1437 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags,
1438 sizeof(wowlan_config_cmd),
1439 &wowlan_config_cmd);
1440 if (ret)
1441 return ret;
1442 }
b77f06d9 1443
98ee7783
AN
1444 return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD,
1445 flags | CMD_MAKE_TRANS_IDLE,
1446 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
b3370d47
EP
1447}
1448
d6230972
EP
1449static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac,
1450 struct ieee80211_vif *vif)
1451{
1452 struct iwl_mvm *mvm = _data;
1453 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO;
1454
1455 IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr);
1456 if (vif->type != NL80211_IFTYPE_STATION ||
1457 !vif->bss_conf.assoc)
1458 return;
1459
1460 iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags);
1461}
1462
a3f7ba5c 1463struct iwl_mvm_d0i3_exit_work_iter_data {
b3df2247 1464 struct iwl_mvm *mvm;
a3f7ba5c 1465 struct iwl_wowlan_status *status;
b3df2247
DS
1466 u32 wakeup_reasons;
1467};
1468
a3f7ba5c
EP
1469static void iwl_mvm_d0i3_exit_work_iter(void *_data, u8 *mac,
1470 struct ieee80211_vif *vif)
37577fe2 1471{
a3f7ba5c 1472 struct iwl_mvm_d0i3_exit_work_iter_data *data = _data;
37577fe2 1473 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
a3f7ba5c 1474 u32 reasons = data->wakeup_reasons;
37577fe2 1475
a3f7ba5c
EP
1476 /* consider only the relevant station interface */
1477 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1478 data->mvm->d0i3_ap_sta_id != mvmvif->ap_sta_id)
1479 return;
1480
1481 if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)
1482 iwl_mvm_connection_loss(data->mvm, vif, "D0i3");
1483 else if (reasons & IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON)
1484 ieee80211_beacon_loss(vif);
1485 else
1486 iwl_mvm_d0i3_update_keys(data->mvm, vif, data->status);
37577fe2
EP
1487}
1488
b2492501
AN
1489void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq)
1490{
1491 struct ieee80211_sta *sta = NULL;
1492 struct iwl_mvm_sta *mvm_ap_sta;
1493 int i;
1494 bool wake_queues = false;
1495
1496 lockdep_assert_held(&mvm->mutex);
1497
1498 spin_lock_bh(&mvm->d0i3_tx_lock);
1499
1500 if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT)
1501 goto out;
1502
1503 IWL_DEBUG_RPM(mvm, "re-enqueue packets\n");
1504
1505 /* get the sta in order to update seq numbers and re-enqueue skbs */
1506 sta = rcu_dereference_protected(
1507 mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id],
1508 lockdep_is_held(&mvm->mutex));
1509
1510 if (IS_ERR_OR_NULL(sta)) {
1511 sta = NULL;
1512 goto out;
1513 }
1514
1515 if (mvm->d0i3_offloading && qos_seq) {
1516 /* update qos seq numbers if offloading was enabled */
9d8ce6af 1517 mvm_ap_sta = iwl_mvm_sta_from_mac80211(sta);
b2492501
AN
1518 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1519 u16 seq = le16_to_cpu(qos_seq[i]);
1520 /* firmware stores last-used one, we store next one */
1521 seq += 0x10;
1522 mvm_ap_sta->tid_data[i].seq_number = seq;
1523 }
1524 }
1525out:
1526 /* re-enqueue (or drop) all packets */
1527 while (!skb_queue_empty(&mvm->d0i3_tx)) {
1528 struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx);
1529
1530 if (!sta || iwl_mvm_tx_skb(mvm, skb, sta))
1531 ieee80211_free_txskb(mvm->hw, skb);
1532
1533 /* if the skb_queue is not empty, we need to wake queues */
1534 wake_queues = true;
1535 }
1536 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1537 wake_up(&mvm->d0i3_exit_waitq);
1538 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1539 if (wake_queues)
1540 ieee80211_wake_queues(mvm->hw);
1541
1542 spin_unlock_bh(&mvm->d0i3_tx_lock);
1543}
1544
37577fe2
EP
1545static void iwl_mvm_d0i3_exit_work(struct work_struct *wk)
1546{
1547 struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work);
1548 struct iwl_host_cmd get_status_cmd = {
1549 .id = WOWLAN_GET_STATUSES,
a1022927 1550 .flags = CMD_HIGH_PRIO | CMD_WANT_SKB,
37577fe2 1551 };
a3f7ba5c
EP
1552 struct iwl_mvm_d0i3_exit_work_iter_data iter_data = {
1553 .mvm = mvm,
1554 };
1555
3afec639 1556 struct iwl_wowlan_status *status;
37577fe2 1557 int ret;
a3f7ba5c 1558 u32 wakeup_reasons = 0;
b2492501 1559 __le16 *qos_seq = NULL;
37577fe2
EP
1560
1561 mutex_lock(&mvm->mutex);
1562 ret = iwl_mvm_send_cmd(mvm, &get_status_cmd);
1563 if (ret)
1564 goto out;
1565
1566 if (!get_status_cmd.resp_pkt)
1567 goto out;
1568
1569 status = (void *)get_status_cmd.resp_pkt->data;
1570 wakeup_reasons = le32_to_cpu(status->wakeup_reasons);
b2492501 1571 qos_seq = status->qos_seq_ctr;
37577fe2
EP
1572
1573 IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons);
1574
a3f7ba5c
EP
1575 iter_data.wakeup_reasons = wakeup_reasons;
1576 iter_data.status = status;
1577 ieee80211_iterate_active_interfaces(mvm->hw,
1578 IEEE80211_IFACE_ITER_NORMAL,
1579 iwl_mvm_d0i3_exit_work_iter,
1580 &iter_data);
37577fe2 1581out:
b2492501 1582 iwl_mvm_d0i3_enable_tx(mvm, qos_seq);
47c8b154 1583
7c014e35
EP
1584 IWL_DEBUG_INFO(mvm, "d0i3 exit completed (wakeup reasons: 0x%x)\n",
1585 wakeup_reasons);
1586
e5629be7
EP
1587 /* qos_seq might point inside resp_pkt, so free it only now */
1588 if (get_status_cmd.resp_pkt)
1589 iwl_free_resp(&get_status_cmd);
1590
47c8b154
JD
1591 /* the FW might have updated the regdomain */
1592 iwl_mvm_update_changed_regdom(mvm);
1593
d15a747f 1594 iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK);
37577fe2
EP
1595 mutex_unlock(&mvm->mutex);
1596}
1597
d15a747f 1598int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm)
b3370d47 1599{
98ee7783
AN
1600 u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE |
1601 CMD_WAKE_UP_TRANS;
d6230972 1602 int ret;
b3370d47
EP
1603
1604 IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n");
98ee7783 1605
08f0d23d
EP
1606 if (WARN_ON_ONCE(mvm->cur_ucode != IWL_UCODE_REGULAR))
1607 return -EINVAL;
1608
d15a747f
EP
1609 mutex_lock(&mvm->d0i3_suspend_mutex);
1610 if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) {
1611 IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n");
1612 __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags);
1613 mutex_unlock(&mvm->d0i3_suspend_mutex);
1614 return 0;
1615 }
1616 mutex_unlock(&mvm->d0i3_suspend_mutex);
1617
d6230972
EP
1618 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL);
1619 if (ret)
37577fe2 1620 goto out;
d6230972
EP
1621
1622 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
1623 IEEE80211_IFACE_ITER_NORMAL,
1624 iwl_mvm_exit_d0i3_iterator,
1625 mvm);
37577fe2
EP
1626out:
1627 schedule_work(&mvm->d0i3_exit_work);
1628 return ret;
b3370d47
EP
1629}
1630
6735943f 1631int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode)
d15a747f
EP
1632{
1633 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
1634
1635 iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK);
1636 return _iwl_mvm_exit_d0i3(mvm);
1637}
1638
0316d30e
JB
1639#define IWL_MVM_COMMON_OPS \
1640 /* these could be differentiated */ \
156f92f2 1641 .async_cb = iwl_mvm_async_cb, \
0316d30e
JB
1642 .queue_full = iwl_mvm_stop_sw_queue, \
1643 .queue_not_full = iwl_mvm_wake_sw_queue, \
1644 .hw_rf_kill = iwl_mvm_set_hw_rfkill_state, \
1645 .free_skb = iwl_mvm_free_skb, \
1646 .nic_error = iwl_mvm_nic_error, \
1647 .cmd_queue_full = iwl_mvm_cmd_queue_full, \
1648 .nic_config = iwl_mvm_nic_config, \
1649 .enter_d0i3 = iwl_mvm_enter_d0i3, \
1650 .exit_d0i3 = iwl_mvm_exit_d0i3, \
1651 /* as we only register one, these MUST be common! */ \
1652 .start = iwl_op_mode_mvm_start, \
1653 .stop = iwl_op_mode_mvm_stop
1654
8ca151b5 1655static const struct iwl_op_mode_ops iwl_mvm_ops = {
0316d30e
JB
1656 IWL_MVM_COMMON_OPS,
1657 .rx = iwl_mvm_rx,
1658};
1659
1660static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
1661 struct napi_struct *napi,
1662 struct iwl_rx_cmd_buffer *rxb,
1663 unsigned int queue)
1664{
1665 struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
585a6fcc 1666 struct iwl_rx_packet *pkt = rxb_addr(rxb);
0316d30e 1667
585a6fcc 1668 if (unlikely(pkt->hdr.cmd == FRAME_RELEASE))
a338384b 1669 iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
94bb4481
SS
1670 else if (unlikely(pkt->hdr.cmd == RX_QUEUES_NOTIFICATION &&
1671 pkt->hdr.group_id == DATA_PATH_GROUP))
1672 iwl_mvm_rx_queue_notif(mvm, rxb, queue);
585a6fcc
SS
1673 else
1674 iwl_mvm_rx_mpdu_mq(mvm, napi, rxb, queue);
0316d30e
JB
1675}
1676
1677static const struct iwl_op_mode_ops iwl_mvm_ops_mq = {
1678 IWL_MVM_COMMON_OPS,
1679 .rx = iwl_mvm_rx_mq,
1680 .rx_rss = iwl_mvm_rx_mq_rss,
8ca151b5 1681};
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