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gpio: rcar: Fix runtime PM imbalance on error
[linux/fpc-iii.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
blob7aa1350b093e4fe95585f484aab959380eea89b6
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 *
8 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
9 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
10 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called COPYING.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <linuxwifi@intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 * BSD LICENSE
29 *
30 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
31 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
32 * Copyright(c) 2012 - 2014, 2018 - 2020 Intel Corporation
33 * All rights reserved.
34 *
35 * Redistribution and use in source and binary forms, with or without
36 * modification, are permitted provided that the following conditions
37 * are met:
38 *
39 * * Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * * Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in
43 * the documentation and/or other materials provided with the
44 * distribution.
45 * * Neither the name Intel Corporation nor the names of its
46 * contributors may be used to endorse or promote products derived
47 * from this software without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
50 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
51 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
52 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
53 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
54 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
55 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
56 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
57 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
58 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
59 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
60 *
61 *****************************************************************************/
62 #include <linux/kernel.h>
63 #include <linux/slab.h>
64 #include <linux/skbuff.h>
65 #include <linux/netdevice.h>
66 #include <linux/etherdevice.h>
67 #include <linux/ip.h>
68 #include <linux/if_arp.h>
69 #include <linux/time.h>
70 #include <net/mac80211.h>
71 #include <net/ieee80211_radiotap.h>
72 #include <net/tcp.h>
73
74 #include "iwl-op-mode.h"
75 #include "iwl-io.h"
76 #include "mvm.h"
77 #include "sta.h"
78 #include "time-event.h"
79 #include "iwl-eeprom-parse.h"
80 #include "iwl-phy-db.h"
81 #include "testmode.h"
82 #include "fw/error-dump.h"
83 #include "iwl-prph.h"
84 #include "iwl-nvm-parse.h"
85
86 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
87 {
88 .max = 1,
89 .types = BIT(NL80211_IFTYPE_STATION),
90 },
91 {
92 .max = 1,
93 .types = BIT(NL80211_IFTYPE_AP) |
94 BIT(NL80211_IFTYPE_P2P_CLIENT) |
95 BIT(NL80211_IFTYPE_P2P_GO),
96 },
97 {
98 .max = 1,
99 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
100 },
101 };
102
103 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
104 {
105 .num_different_channels = 2,
106 .max_interfaces = 3,
107 .limits = iwl_mvm_limits,
108 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
109 },
110 };
111
112 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
113 /*
114 * Use the reserved field to indicate magic values.
115 * these values will only be used internally by the driver,
116 * and won't make it to the fw (reserved will be 0).
117 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
118 * be the vif's ip address. in case there is not a single
119 * ip address (0, or more than 1), this attribute will
120 * be skipped.
121 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
122 * the LSB bytes of the vif's mac address
123 */
124 enum {
125 BC_FILTER_MAGIC_NONE = 0,
126 BC_FILTER_MAGIC_IP,
127 BC_FILTER_MAGIC_MAC,
128 };
129
130 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
131 {
132 /* arp */
133 .discard = 0,
134 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
135 .attrs = {
136 {
137 /* frame type - arp, hw type - ethernet */
138 .offset_type =
139 BCAST_FILTER_OFFSET_PAYLOAD_START,
140 .offset = sizeof(rfc1042_header),
141 .val = cpu_to_be32(0x08060001),
142 .mask = cpu_to_be32(0xffffffff),
143 },
144 {
145 /* arp dest ip */
146 .offset_type =
147 BCAST_FILTER_OFFSET_PAYLOAD_START,
148 .offset = sizeof(rfc1042_header) + 2 +
149 sizeof(struct arphdr) +
150 ETH_ALEN + sizeof(__be32) +
151 ETH_ALEN,
152 .mask = cpu_to_be32(0xffffffff),
153 /* mark it as special field */
154 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
155 },
156 },
157 },
158 {
159 /* dhcp offer bcast */
160 .discard = 0,
161 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
162 .attrs = {
163 {
164 /* udp dest port - 68 (bootp client)*/
165 .offset_type = BCAST_FILTER_OFFSET_IP_END,
166 .offset = offsetof(struct udphdr, dest),
167 .val = cpu_to_be32(0x00440000),
168 .mask = cpu_to_be32(0xffff0000),
169 },
170 {
171 /* dhcp - lsb bytes of client hw address */
172 .offset_type = BCAST_FILTER_OFFSET_IP_END,
173 .offset = 38,
174 .mask = cpu_to_be32(0xffffffff),
175 /* mark it as special field */
176 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
177 },
178 },
179 },
180 /* last filter must be empty */
181 {},
182 };
183 #endif
184
185 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
186 .max_peers = IWL_MVM_TOF_MAX_APS,
187 .report_ap_tsf = 1,
188 .randomize_mac_addr = 1,
189
190 .ftm = {
191 .supported = 1,
192 .asap = 1,
193 .non_asap = 1,
194 .request_lci = 1,
195 .request_civicloc = 1,
196 .trigger_based = 1,
197 .non_trigger_based = 1,
198 .max_bursts_exponent = -1, /* all supported */
199 .max_ftms_per_burst = 0, /* no limits */
200 .bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
201 BIT(NL80211_CHAN_WIDTH_20) |
202 BIT(NL80211_CHAN_WIDTH_40) |
203 BIT(NL80211_CHAN_WIDTH_80),
204 .preambles = BIT(NL80211_PREAMBLE_LEGACY) |
205 BIT(NL80211_PREAMBLE_HT) |
206 BIT(NL80211_PREAMBLE_VHT) |
207 BIT(NL80211_PREAMBLE_HE),
208 },
209 };
210
211 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
212 enum set_key_cmd cmd,
213 struct ieee80211_vif *vif,
214 struct ieee80211_sta *sta,
215 struct ieee80211_key_conf *key);
216
217 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
218 {
219 int i;
220
221 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
222 for (i = 0; i < NUM_PHY_CTX; i++) {
223 mvm->phy_ctxts[i].id = i;
224 mvm->phy_ctxts[i].ref = 0;
225 }
226 }
227
228 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
229 const char *alpha2,
230 enum iwl_mcc_source src_id,
231 bool *changed)
232 {
233 struct ieee80211_regdomain *regd = NULL;
234 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
236 struct iwl_mcc_update_resp *resp;
237
238 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
239
240 lockdep_assert_held(&mvm->mutex);
241
242 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
243 if (IS_ERR_OR_NULL(resp)) {
244 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
245 PTR_ERR_OR_ZERO(resp));
246 goto out;
247 }
248
249 if (changed) {
250 u32 status = le32_to_cpu(resp->status);
251
252 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
253 status == MCC_RESP_ILLEGAL);
254 }
255
256 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
257 __le32_to_cpu(resp->n_channels),
258 resp->channels,
259 __le16_to_cpu(resp->mcc),
260 __le16_to_cpu(resp->geo_info),
261 __le16_to_cpu(resp->cap));
262 /* Store the return source id */
263 src_id = resp->source_id;
264 kfree(resp);
265 if (IS_ERR_OR_NULL(regd)) {
266 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
267 PTR_ERR_OR_ZERO(regd));
268 goto out;
269 }
270
271 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
272 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
273 mvm->lar_regdom_set = true;
274 mvm->mcc_src = src_id;
275
276 out:
277 return regd;
278 }
279
280 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
281 {
282 bool changed;
283 struct ieee80211_regdomain *regd;
284
285 if (!iwl_mvm_is_lar_supported(mvm))
286 return;
287
288 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
289 if (!IS_ERR_OR_NULL(regd)) {
290 /* only update the regulatory core if changed */
291 if (changed)
292 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
293
294 kfree(regd);
295 }
296 }
297
298 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
299 bool *changed)
300 {
301 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
302 iwl_mvm_is_wifi_mcc_supported(mvm) ?
303 MCC_SOURCE_GET_CURRENT :
304 MCC_SOURCE_OLD_FW, changed);
305 }
306
307 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
308 {
309 enum iwl_mcc_source used_src;
310 struct ieee80211_regdomain *regd;
311 int ret;
312 bool changed;
313 const struct ieee80211_regdomain *r =
314 rtnl_dereference(mvm->hw->wiphy->regd);
315
316 if (!r)
317 return -ENOENT;
318
319 /* save the last source in case we overwrite it below */
320 used_src = mvm->mcc_src;
321 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
322 /* Notify the firmware we support wifi location updates */
323 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
324 if (!IS_ERR_OR_NULL(regd))
325 kfree(regd);
326 }
327
328 /* Now set our last stored MCC and source */
329 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
330 &changed);
331 if (IS_ERR_OR_NULL(regd))
332 return -EIO;
333
334 /* update cfg80211 if the regdomain was changed */
335 if (changed)
336 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
337 else
338 ret = 0;
339
340 kfree(regd);
341 return ret;
342 }
343
344 static const u8 he_if_types_ext_capa_sta[] = {
345 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
346 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
347 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
348 [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
349 };
350
351 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = {
352 {
353 .iftype = NL80211_IFTYPE_STATION,
354 .extended_capabilities = he_if_types_ext_capa_sta,
355 .extended_capabilities_mask = he_if_types_ext_capa_sta,
356 .extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
357 },
358 };
359
360 static int
361 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
362 {
363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
364 *tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
365 *rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
366 return 0;
367 }
368
369 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
370 {
371 struct ieee80211_hw *hw = mvm->hw;
372 int num_mac, ret, i;
373 static const u32 mvm_ciphers[] = {
374 WLAN_CIPHER_SUITE_WEP40,
375 WLAN_CIPHER_SUITE_WEP104,
376 WLAN_CIPHER_SUITE_TKIP,
377 WLAN_CIPHER_SUITE_CCMP,
378 };
379 #ifdef CONFIG_PM_SLEEP
380 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
381 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
382 #endif
383
384 /* Tell mac80211 our characteristics */
385 ieee80211_hw_set(hw, SIGNAL_DBM);
386 ieee80211_hw_set(hw, SPECTRUM_MGMT);
387 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
388 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
389 ieee80211_hw_set(hw, SUPPORTS_PS);
390 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
391 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
392 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
393 ieee80211_hw_set(hw, CONNECTION_MONITOR);
394 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
395 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
396 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
397 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
398 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
399 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
400 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
401 ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
402 ieee80211_hw_set(hw, STA_MMPDU_TXQ);
403 /*
404 * On older devices, enabling TX A-MSDU occasionally leads to
405 * something getting messed up, the command read from the FIFO
406 * gets out of sync and isn't a TX command, so that we have an
407 * assert EDC.
408 *
409 * It's not clear where the bug is, but since we didn't used to
410 * support A-MSDU until moving the mac80211 iTXQs, just leave it
411 * for older devices. We also don't see this issue on any newer
412 * devices.
413 */
414 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
415 ieee80211_hw_set(hw, TX_AMSDU);
416 ieee80211_hw_set(hw, TX_FRAG_LIST);
417
418 if (iwl_mvm_has_tlc_offload(mvm)) {
419 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
420 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
421 }
422
423 if (iwl_mvm_has_new_rx_api(mvm))
424 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
425
426 if (fw_has_capa(&mvm->fw->ucode_capa,
427 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
428 ieee80211_hw_set(hw, AP_LINK_PS);
429 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
430 /*
431 * we absolutely need this for the new TX API since that comes
432 * with many more queues than the current code can deal with
433 * for station powersave
434 */
435 return -EINVAL;
436 }
437
438 if (mvm->trans->num_rx_queues > 1)
439 ieee80211_hw_set(hw, USES_RSS);
440
441 if (mvm->trans->max_skb_frags)
442 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
443
444 hw->queues = IEEE80211_MAX_QUEUES;
445 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
446 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
447 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
448 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
449 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
450
451 hw->radiotap_timestamp.units_pos =
452 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
453 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
454 /* this is the case for CCK frames, it's better (only 8) for OFDM */
455 hw->radiotap_timestamp.accuracy = 22;
456
457 if (!iwl_mvm_has_tlc_offload(mvm))
458 hw->rate_control_algorithm = RS_NAME;
459
460 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
461 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
462 hw->max_tx_fragments = mvm->trans->max_skb_frags;
463
464 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
465 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
466 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
467 hw->wiphy->cipher_suites = mvm->ciphers;
468
469 if (iwl_mvm_has_new_rx_api(mvm)) {
470 mvm->ciphers[hw->wiphy->n_cipher_suites] =
471 WLAN_CIPHER_SUITE_GCMP;
472 hw->wiphy->n_cipher_suites++;
473 mvm->ciphers[hw->wiphy->n_cipher_suites] =
474 WLAN_CIPHER_SUITE_GCMP_256;
475 hw->wiphy->n_cipher_suites++;
476 }
477
478 /* Enable 11w if software crypto is not enabled (as the
479 * firmware will interpret some mgmt packets, so enabling it
480 * with software crypto isn't safe).
481 */
482 if (!iwlwifi_mod_params.swcrypto) {
483 ieee80211_hw_set(hw, MFP_CAPABLE);
484 mvm->ciphers[hw->wiphy->n_cipher_suites] =
485 WLAN_CIPHER_SUITE_AES_CMAC;
486 hw->wiphy->n_cipher_suites++;
487 if (iwl_mvm_has_new_rx_api(mvm)) {
488 mvm->ciphers[hw->wiphy->n_cipher_suites] =
489 WLAN_CIPHER_SUITE_BIP_GMAC_128;
490 hw->wiphy->n_cipher_suites++;
491 mvm->ciphers[hw->wiphy->n_cipher_suites] =
492 WLAN_CIPHER_SUITE_BIP_GMAC_256;
493 hw->wiphy->n_cipher_suites++;
494 }
495 }
496
497 /* currently FW API supports only one optional cipher scheme */
498 if (mvm->fw->cs[0].cipher) {
499 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
500 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
501
502 mvm->hw->n_cipher_schemes = 1;
503
504 cs->cipher = le32_to_cpu(fwcs->cipher);
505 cs->iftype = BIT(NL80211_IFTYPE_STATION);
506 cs->hdr_len = fwcs->hdr_len;
507 cs->pn_len = fwcs->pn_len;
508 cs->pn_off = fwcs->pn_off;
509 cs->key_idx_off = fwcs->key_idx_off;
510 cs->key_idx_mask = fwcs->key_idx_mask;
511 cs->key_idx_shift = fwcs->key_idx_shift;
512 cs->mic_len = fwcs->mic_len;
513
514 mvm->hw->cipher_schemes = mvm->cs;
515 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
516 hw->wiphy->n_cipher_suites++;
517 }
518
519 if (fw_has_capa(&mvm->fw->ucode_capa,
520 IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
521 wiphy_ext_feature_set(hw->wiphy,
522 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
523 hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
524 }
525
526 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
527 hw->wiphy->features |=
528 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
529 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
530 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
531
532 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
533 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
534 hw->chanctx_data_size = sizeof(u16);
535 hw->txq_data_size = sizeof(struct iwl_mvm_txq);
536
537 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
538 BIT(NL80211_IFTYPE_P2P_CLIENT) |
539 BIT(NL80211_IFTYPE_AP) |
540 BIT(NL80211_IFTYPE_P2P_GO) |
541 BIT(NL80211_IFTYPE_P2P_DEVICE) |
542 BIT(NL80211_IFTYPE_ADHOC);
543
544 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
545 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
546 hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
547
548 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
549 if (iwl_mvm_is_lar_supported(mvm))
550 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
551 else
552 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
553 REGULATORY_DISABLE_BEACON_HINTS;
554
555 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
556 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
557
558 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
559 hw->wiphy->n_iface_combinations =
560 ARRAY_SIZE(iwl_mvm_iface_combinations);
561
562 hw->wiphy->max_remain_on_channel_duration = 10000;
563 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
564
565 /* Extract MAC address */
566 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
567 hw->wiphy->addresses = mvm->addresses;
568 hw->wiphy->n_addresses = 1;
569
570 /* Extract additional MAC addresses if available */
571 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
572 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
573
574 for (i = 1; i < num_mac; i++) {
575 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
576 ETH_ALEN);
577 mvm->addresses[i].addr[5]++;
578 hw->wiphy->n_addresses++;
579 }
580
581 iwl_mvm_reset_phy_ctxts(mvm);
582
583 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
584
585 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
586
587 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
588 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
589 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
590
591 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
592 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
593 else
594 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
595
596 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
597 hw->wiphy->bands[NL80211_BAND_2GHZ] =
598 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
599 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
600 hw->wiphy->bands[NL80211_BAND_5GHZ] =
601 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
602
603 if (fw_has_capa(&mvm->fw->ucode_capa,
604 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
605 fw_has_api(&mvm->fw->ucode_capa,
606 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
607 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
608 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
609 }
610
611 hw->wiphy->hw_version = mvm->trans->hw_id;
612
613 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
614 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
615 else
616 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
617
618 hw->wiphy->max_sched_scan_reqs = 1;
619 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
620 hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
621 /* we create the 802.11 header and zero length SSID IE. */
622 hw->wiphy->max_sched_scan_ie_len =
623 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
624 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
625 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
626
627 /*
628 * the firmware uses u8 for num of iterations, but 0xff is saved for
629 * infinite loop, so the maximum number of iterations is actually 254.
630 */
631 hw->wiphy->max_sched_scan_plan_iterations = 254;
632
633 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
634 NL80211_FEATURE_LOW_PRIORITY_SCAN |
635 NL80211_FEATURE_P2P_GO_OPPPS |
636 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
637 NL80211_FEATURE_DYNAMIC_SMPS |
638 NL80211_FEATURE_STATIC_SMPS |
639 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
640
641 if (fw_has_capa(&mvm->fw->ucode_capa,
642 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
643 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
644 if (fw_has_capa(&mvm->fw->ucode_capa,
645 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
646 hw->wiphy->features |= NL80211_FEATURE_QUIET;
647
648 if (fw_has_capa(&mvm->fw->ucode_capa,
649 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
650 hw->wiphy->features |=
651 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
652
653 if (fw_has_capa(&mvm->fw->ucode_capa,
654 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
655 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
656
657 if (fw_has_api(&mvm->fw->ucode_capa,
658 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
659 wiphy_ext_feature_set(hw->wiphy,
660 NL80211_EXT_FEATURE_SCAN_START_TIME);
661 wiphy_ext_feature_set(hw->wiphy,
662 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
663 wiphy_ext_feature_set(hw->wiphy,
664 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
665 }
666
667 if (iwl_mvm_is_oce_supported(mvm)) {
668 wiphy_ext_feature_set(hw->wiphy,
669 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
670 wiphy_ext_feature_set(hw->wiphy,
671 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
672 wiphy_ext_feature_set(hw->wiphy,
673 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
674 wiphy_ext_feature_set(hw->wiphy,
675 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
676 }
677
678 if (mvm->nvm_data->sku_cap_11ax_enable &&
679 !iwlwifi_mod_params.disable_11ax) {
680 hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa;
681 hw->wiphy->num_iftype_ext_capab =
682 ARRAY_SIZE(he_iftypes_ext_capa);
683
684 ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
685 ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
686 }
687
688 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
689
690 #ifdef CONFIG_PM_SLEEP
691 if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
692 mvm->trans->ops->d3_suspend &&
693 mvm->trans->ops->d3_resume &&
694 device_can_wakeup(mvm->trans->dev)) {
695 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
696 WIPHY_WOWLAN_DISCONNECT |
697 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
698 WIPHY_WOWLAN_RFKILL_RELEASE |
699 WIPHY_WOWLAN_NET_DETECT;
700 if (!iwlwifi_mod_params.swcrypto)
701 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
702 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
703 WIPHY_WOWLAN_4WAY_HANDSHAKE;
704
705 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
706 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
707 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
708 mvm->wowlan.max_nd_match_sets =
709 iwl_umac_scan_get_max_profiles(mvm->fw);
710 hw->wiphy->wowlan = &mvm->wowlan;
711 }
712 #endif
713
714 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
715 /* assign default bcast filtering configuration */
716 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
717 #endif
718
719 ret = iwl_mvm_leds_init(mvm);
720 if (ret)
721 return ret;
722
723 if (fw_has_capa(&mvm->fw->ucode_capa,
724 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
725 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
726 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
727 ieee80211_hw_set(hw, TDLS_WIDER_BW);
728 }
729
730 if (fw_has_capa(&mvm->fw->ucode_capa,
731 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
732 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
733 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
734 }
735
736 hw->netdev_features |= mvm->cfg->features;
737 if (!iwl_mvm_is_csum_supported(mvm)) {
738 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
739 NETIF_F_RXCSUM);
740 /* We may support SW TX CSUM */
741 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
742 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
743 }
744
745 if (mvm->cfg->vht_mu_mimo_supported)
746 wiphy_ext_feature_set(hw->wiphy,
747 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
748
749 hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
750 hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
751
752 ret = ieee80211_register_hw(mvm->hw);
753 if (ret) {
754 iwl_mvm_leds_exit(mvm);
755 }
756
757 return ret;
758 }
759
760 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
761 struct ieee80211_sta *sta)
762 {
763 if (likely(sta)) {
764 if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
765 return;
766 } else {
767 if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
768 return;
769 }
770
771 ieee80211_free_txskb(mvm->hw, skb);
772 }
773
774 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
775 struct ieee80211_tx_control *control,
776 struct sk_buff *skb)
777 {
778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
779 struct ieee80211_sta *sta = control->sta;
780 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
781 struct ieee80211_hdr *hdr = (void *)skb->data;
782 bool offchannel = IEEE80211_SKB_CB(skb)->flags &
783 IEEE80211_TX_CTL_TX_OFFCHAN;
784
785 if (iwl_mvm_is_radio_killed(mvm)) {
786 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
787 goto drop;
788 }
789
790 if (offchannel &&
791 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
792 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
793 goto drop;
794
795 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
796 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
797 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
798 ieee80211_is_mgmt(hdr->frame_control) &&
799 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
800 sta = NULL;
801
802 /* If there is no sta, and it's not offchannel - send through AP */
803 if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
804 !offchannel) {
805 struct iwl_mvm_vif *mvmvif =
806 iwl_mvm_vif_from_mac80211(info->control.vif);
807 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id);
808
809 if (ap_sta_id < IWL_MVM_STATION_COUNT) {
810 /* mac80211 holds rcu read lock */
811 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
812 if (IS_ERR_OR_NULL(sta))
813 goto drop;
814 }
815 }
816
817 iwl_mvm_tx_skb(mvm, skb, sta);
818 return;
819 drop:
820 ieee80211_free_txskb(hw, skb);
821 }
822
823 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
824 {
825 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
826 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
827 struct sk_buff *skb = NULL;
828
829 /*
830 * No need for threads to be pending here, they can leave the first
831 * taker all the work.
832 *
833 * mvmtxq->tx_request logic:
834 *
835 * If 0, no one is currently TXing, set to 1 to indicate current thread
836 * will now start TX and other threads should quit.
837 *
838 * If 1, another thread is currently TXing, set to 2 to indicate to
839 * that thread that there was another request. Since that request may
840 * have raced with the check whether the queue is empty, the TXing
841 * thread should check the queue's status one more time before leaving.
842 * This check is done in order to not leave any TX hanging in the queue
843 * until the next TX invocation (which may not even happen).
844 *
845 * If 2, another thread is currently TXing, and it will already double
846 * check the queue, so do nothing.
847 */
848 if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
849 return;
850
851 rcu_read_lock();
852 do {
853 while (likely(!mvmtxq->stopped &&
854 (mvm->trans->system_pm_mode ==
855 IWL_PLAT_PM_MODE_DISABLED))) {
856 skb = ieee80211_tx_dequeue(hw, txq);
857
858 if (!skb) {
859 if (txq->sta)
860 IWL_DEBUG_TX(mvm,
861 "TXQ of sta %pM tid %d is now empty\n",
862 txq->sta->addr,
863 txq->tid);
864 break;
865 }
866
867 iwl_mvm_tx_skb(mvm, skb, txq->sta);
868 }
869 } while (atomic_dec_return(&mvmtxq->tx_request));
870 rcu_read_unlock();
871 }
872
873 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
874 struct ieee80211_txq *txq)
875 {
876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
877 struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
878
879 /*
880 * Please note that racing is handled very carefully here:
881 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is
882 * deleted afterwards.
883 * This means that if:
884 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list):
885 * queue is allocated and we can TX.
886 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list):
887 * a race, should defer the frame.
888 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list):
889 * need to allocate the queue and defer the frame.
890 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list):
891 * queue is already scheduled for allocation, no need to allocate,
892 * should defer the frame.
893 */
894
895 /* If the queue is allocated TX and return. */
896 if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) {
897 /*
898 * Check that list is empty to avoid a race where txq_id is
899 * already updated, but the queue allocation work wasn't
900 * finished
901 */
902 if (unlikely(txq->sta && !list_empty(&mvmtxq->list)))
903 return;
904
905 iwl_mvm_mac_itxq_xmit(hw, txq);
906 return;
907 }
908
909 /* The list is being deleted only after the queue is fully allocated. */
910 if (!list_empty(&mvmtxq->list))
911 return;
912
913 list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
914 schedule_work(&mvm->add_stream_wk);
915 }
916
917 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
918 do { \
919 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
920 break; \
921 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
922 } while (0)
923
924 static void
925 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
926 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
927 enum ieee80211_ampdu_mlme_action action)
928 {
929 struct iwl_fw_dbg_trigger_tlv *trig;
930 struct iwl_fw_dbg_trigger_ba *ba_trig;
931
932 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
933 FW_DBG_TRIGGER_BA);
934 if (!trig)
935 return;
936
937 ba_trig = (void *)trig->data;
938
939 switch (action) {
940 case IEEE80211_AMPDU_TX_OPERATIONAL: {
941 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
942 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
943
944 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
945 "TX AGG START: MAC %pM tid %d ssn %d\n",
946 sta->addr, tid, tid_data->ssn);
947 break;
948 }
949 case IEEE80211_AMPDU_TX_STOP_CONT:
950 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
951 "TX AGG STOP: MAC %pM tid %d\n",
952 sta->addr, tid);
953 break;
954 case IEEE80211_AMPDU_RX_START:
955 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
956 "RX AGG START: MAC %pM tid %d ssn %d\n",
957 sta->addr, tid, rx_ba_ssn);
958 break;
959 case IEEE80211_AMPDU_RX_STOP:
960 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
961 "RX AGG STOP: MAC %pM tid %d\n",
962 sta->addr, tid);
963 break;
964 default:
965 break;
966 }
967 }
968
969 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
970 struct ieee80211_vif *vif,
971 struct ieee80211_ampdu_params *params)
972 {
973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
974 int ret;
975 struct ieee80211_sta *sta = params->sta;
976 enum ieee80211_ampdu_mlme_action action = params->action;
977 u16 tid = params->tid;
978 u16 *ssn = &params->ssn;
979 u16 buf_size = params->buf_size;
980 bool amsdu = params->amsdu;
981 u16 timeout = params->timeout;
982
983 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
984 sta->addr, tid, action);
985
986 if (!(mvm->nvm_data->sku_cap_11n_enable))
987 return -EACCES;
988
989 mutex_lock(&mvm->mutex);
990
991 switch (action) {
992 case IEEE80211_AMPDU_RX_START:
993 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id ==
994 iwl_mvm_sta_from_mac80211(sta)->sta_id) {
995 struct iwl_mvm_vif *mvmvif;
996 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
997 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
998
999 mdata->opened_rx_ba_sessions = true;
1000 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1001 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
1002 }
1003 if (!iwl_enable_rx_ampdu()) {
1004 ret = -EINVAL;
1005 break;
1006 }
1007 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
1008 timeout);
1009 break;
1010 case IEEE80211_AMPDU_RX_STOP:
1011 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
1012 timeout);
1013 break;
1014 case IEEE80211_AMPDU_TX_START:
1015 if (!iwl_enable_tx_ampdu()) {
1016 ret = -EINVAL;
1017 break;
1018 }
1019 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
1020 break;
1021 case IEEE80211_AMPDU_TX_STOP_CONT:
1022 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
1023 break;
1024 case IEEE80211_AMPDU_TX_STOP_FLUSH:
1025 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
1026 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
1027 break;
1028 case IEEE80211_AMPDU_TX_OPERATIONAL:
1029 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1030 buf_size, amsdu);
1031 break;
1032 default:
1033 WARN_ON_ONCE(1);
1034 ret = -EINVAL;
1035 break;
1036 }
1037
1038 if (!ret) {
1039 u16 rx_ba_ssn = 0;
1040
1041 if (action == IEEE80211_AMPDU_RX_START)
1042 rx_ba_ssn = *ssn;
1043
1044 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1045 rx_ba_ssn, action);
1046 }
1047 mutex_unlock(&mvm->mutex);
1048
1049 return ret;
1050 }
1051
1052 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1053 struct ieee80211_vif *vif)
1054 {
1055 struct iwl_mvm *mvm = data;
1056 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1057
1058 mvmvif->uploaded = false;
1059 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1060
1061 spin_lock_bh(&mvm->time_event_lock);
1062 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1063 spin_unlock_bh(&mvm->time_event_lock);
1064
1065 mvmvif->phy_ctxt = NULL;
1066 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
1067 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data));
1068 }
1069
1070 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1071 {
1072 iwl_mvm_stop_device(mvm);
1073
1074 mvm->cur_aid = 0;
1075
1076 mvm->scan_status = 0;
1077 mvm->ps_disabled = false;
1078 mvm->rfkill_safe_init_done = false;
1079
1080 /* just in case one was running */
1081 iwl_mvm_cleanup_roc_te(mvm);
1082 ieee80211_remain_on_channel_expired(mvm->hw);
1083
1084 iwl_mvm_ftm_restart(mvm);
1085
1086 /*
1087 * cleanup all interfaces, even inactive ones, as some might have
1088 * gone down during the HW restart
1089 */
1090 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1091
1092 mvm->p2p_device_vif = NULL;
1093
1094 iwl_mvm_reset_phy_ctxts(mvm);
1095 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1096 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1097 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1098
1099 ieee80211_wake_queues(mvm->hw);
1100
1101 mvm->vif_count = 0;
1102 mvm->rx_ba_sessions = 0;
1103 mvm->fwrt.dump.conf = FW_DBG_INVALID;
1104 mvm->monitor_on = false;
1105
1106 /* keep statistics ticking */
1107 iwl_mvm_accu_radio_stats(mvm);
1108 }
1109
1110 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1111 {
1112 int ret;
1113
1114 lockdep_assert_held(&mvm->mutex);
1115
1116 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1117 /*
1118 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1119 * so later code will - from now on - see that we're doing it.
1120 */
1121 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1122 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1123 /* Clean up some internal and mac80211 state on restart */
1124 iwl_mvm_restart_cleanup(mvm);
1125 }
1126 ret = iwl_mvm_up(mvm);
1127
1128 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1129 NULL);
1130 iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1131 NULL);
1132
1133 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1134 /* Something went wrong - we need to finish some cleanup
1135 * that normally iwl_mvm_mac_restart_complete() below
1136 * would do.
1137 */
1138 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1139 }
1140
1141 return ret;
1142 }
1143
1144 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1145 {
1146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1147 int ret;
1148
1149 mutex_lock(&mvm->mutex);
1150 ret = __iwl_mvm_mac_start(mvm);
1151 mutex_unlock(&mvm->mutex);
1152
1153 return ret;
1154 }
1155
1156 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1157 {
1158 int ret;
1159
1160 mutex_lock(&mvm->mutex);
1161
1162 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1163
1164 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1165 if (ret)
1166 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1167 ret);
1168
1169 iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1170
1171 /*
1172 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1173 * of packets the FW sent out, so we must reconnect.
1174 */
1175 iwl_mvm_teardown_tdls_peers(mvm);
1176
1177 mutex_unlock(&mvm->mutex);
1178 }
1179
1180 static void
1181 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1182 enum ieee80211_reconfig_type reconfig_type)
1183 {
1184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1185
1186 switch (reconfig_type) {
1187 case IEEE80211_RECONFIG_TYPE_RESTART:
1188 iwl_mvm_restart_complete(mvm);
1189 break;
1190 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1191 break;
1192 }
1193 }
1194
1195 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1196 {
1197 lockdep_assert_held(&mvm->mutex);
1198
1199 /* firmware counters are obviously reset now, but we shouldn't
1200 * partially track so also clear the fw_reset_accu counters.
1201 */
1202 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1203
1204 /* async_handlers_wk is now blocked */
1205
1206 /*
1207 * The work item could be running or queued if the
1208 * ROC time event stops just as we get here.
1209 */
1210 flush_work(&mvm->roc_done_wk);
1211
1212 iwl_mvm_stop_device(mvm);
1213
1214 iwl_mvm_async_handlers_purge(mvm);
1215 /* async_handlers_list is empty and will stay empty: HW is stopped */
1216
1217 /* the fw is stopped, the aux sta is dead: clean up driver state */
1218 iwl_mvm_del_aux_sta(mvm);
1219
1220 /*
1221 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1222 * hw (as restart_complete() won't be called in this case) and mac80211
1223 * won't execute the restart.
1224 * But make sure to cleanup interfaces that have gone down before/during
1225 * HW restart was requested.
1226 */
1227 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1228 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1229 &mvm->status))
1230 ieee80211_iterate_interfaces(mvm->hw, 0,
1231 iwl_mvm_cleanup_iterator, mvm);
1232
1233 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1234 * make sure there's nothing left there and warn if any is found.
1235 */
1236 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1237 int i;
1238
1239 for (i = 0; i < mvm->max_scans; i++) {
1240 if (WARN_ONCE(mvm->scan_uid_status[i],
1241 "UMAC scan UID %d status was not cleaned\n",
1242 i))
1243 mvm->scan_uid_status[i] = 0;
1244 }
1245 }
1246 }
1247
1248 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1249 {
1250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1251
1252 flush_work(&mvm->async_handlers_wk);
1253 flush_work(&mvm->add_stream_wk);
1254
1255 /*
1256 * Lock and clear the firmware running bit here already, so that
1257 * new commands coming in elsewhere, e.g. from debugfs, will not
1258 * be able to proceed. This is important here because one of those
1259 * debugfs files causes the firmware dump to be triggered, and if we
1260 * don't stop debugfs accesses before canceling that it could be
1261 * retriggered after we flush it but before we've cleared the bit.
1262 */
1263 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1264
1265 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1266 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1267 iwl_fw_free_dump_desc(&mvm->fwrt);
1268
1269 mutex_lock(&mvm->mutex);
1270 __iwl_mvm_mac_stop(mvm);
1271 mutex_unlock(&mvm->mutex);
1272
1273 /*
1274 * The worker might have been waiting for the mutex, let it run and
1275 * discover that its list is now empty.
1276 */
1277 cancel_work_sync(&mvm->async_handlers_wk);
1278 }
1279
1280 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1281 {
1282 u16 i;
1283
1284 lockdep_assert_held(&mvm->mutex);
1285
1286 for (i = 0; i < NUM_PHY_CTX; i++)
1287 if (!mvm->phy_ctxts[i].ref)
1288 return &mvm->phy_ctxts[i];
1289
1290 IWL_ERR(mvm, "No available PHY context\n");
1291 return NULL;
1292 }
1293
1294 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1295 s16 tx_power)
1296 {
1297 int len;
1298 union {
1299 struct iwl_dev_tx_power_cmd v5;
1300 struct iwl_dev_tx_power_cmd_v4 v4;
1301 } cmd = {
1302 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1303 .v5.v3.mac_context_id =
1304 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1305 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power),
1306 };
1307
1308 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1309 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1310
1311 if (fw_has_api(&mvm->fw->ucode_capa,
1312 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1313 len = sizeof(cmd.v5);
1314 else if (fw_has_capa(&mvm->fw->ucode_capa,
1315 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1316 len = sizeof(cmd.v4);
1317 else
1318 len = sizeof(cmd.v4.v3);
1319
1320 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
1321 }
1322
1323 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1324 struct ieee80211_vif *vif)
1325 {
1326 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1328 int ret;
1329
1330 mutex_lock(&mvm->mutex);
1331
1332 if (mvmvif->csa_failed) {
1333 mvmvif->csa_failed = false;
1334 ret = -EIO;
1335 goto out_unlock;
1336 }
1337
1338 if (vif->type == NL80211_IFTYPE_STATION) {
1339 struct iwl_mvm_sta *mvmsta;
1340
1341 mvmvif->csa_bcn_pending = false;
1342 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
1343 mvmvif->ap_sta_id);
1344
1345 if (WARN_ON(!mvmsta)) {
1346 ret = -EIO;
1347 goto out_unlock;
1348 }
1349
1350 if (!fw_has_capa(&mvm->fw->ucode_capa,
1351 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1352 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1353
1354 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1355
1356 if (!fw_has_capa(&mvm->fw->ucode_capa,
1357 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1358 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1359 if (ret)
1360 goto out_unlock;
1361
1362 iwl_mvm_stop_session_protection(mvm, vif);
1363 }
1364 }
1365
1366 mvmvif->ps_disabled = false;
1367
1368 ret = iwl_mvm_power_update_ps(mvm);
1369
1370 out_unlock:
1371 mutex_unlock(&mvm->mutex);
1372
1373 return ret;
1374 }
1375
1376 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1377 struct ieee80211_vif *vif)
1378 {
1379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1380 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1381 struct iwl_chan_switch_te_cmd cmd = {
1382 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1383 mvmvif->color)),
1384 .action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1385 };
1386
1387 IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1388
1389 mutex_lock(&mvm->mutex);
1390 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1391 WIDE_ID(MAC_CONF_GROUP,
1392 CHANNEL_SWITCH_TIME_EVENT_CMD),
1393 0, sizeof(cmd), &cmd));
1394 mutex_unlock(&mvm->mutex);
1395
1396 WARN_ON(iwl_mvm_post_channel_switch(hw, vif));
1397 }
1398
1399 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1400 {
1401 struct iwl_mvm *mvm;
1402 struct iwl_mvm_vif *mvmvif;
1403 struct ieee80211_vif *vif;
1404
1405 mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1406 vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1407 mvm = mvmvif->mvm;
1408
1409 iwl_mvm_abort_channel_switch(mvm->hw, vif);
1410 ieee80211_chswitch_done(vif, false);
1411 }
1412
1413 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1414 struct ieee80211_vif *vif)
1415 {
1416 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1417 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1418 int ret;
1419
1420 mvmvif->mvm = mvm;
1421 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1422
1423 /*
1424 * Not much to do here. The stack will not allow interface
1425 * types or combinations that we didn't advertise, so we
1426 * don't really have to check the types.
1427 */
1428
1429 mutex_lock(&mvm->mutex);
1430
1431 /* make sure that beacon statistics don't go backwards with FW reset */
1432 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1433 mvmvif->beacon_stats.accu_num_beacons +=
1434 mvmvif->beacon_stats.num_beacons;
1435
1436 /* Allocate resources for the MAC context, and add it to the fw */
1437 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1438 if (ret)
1439 goto out_unlock;
1440
1441 rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1442
1443 /* Counting number of interfaces is needed for legacy PM */
1444 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1445 mvm->vif_count++;
1446
1447 /*
1448 * The AP binding flow can be done only after the beacon
1449 * template is configured (which happens only in the mac80211
1450 * start_ap() flow), and adding the broadcast station can happen
1451 * only after the binding.
1452 * In addition, since modifying the MAC before adding a bcast
1453 * station is not allowed by the FW, delay the adding of MAC context to
1454 * the point where we can also add the bcast station.
1455 * In short: there's not much we can do at this point, other than
1456 * allocating resources :)
1457 */
1458 if (vif->type == NL80211_IFTYPE_AP ||
1459 vif->type == NL80211_IFTYPE_ADHOC) {
1460 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1461 if (ret) {
1462 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1463 goto out_release;
1464 }
1465
1466 /*
1467 * Only queue for this station is the mcast queue,
1468 * which shouldn't be in TFD mask anyway
1469 */
1470 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1471 0, vif->type,
1472 IWL_STA_MULTICAST);
1473 if (ret)
1474 goto out_release;
1475
1476 iwl_mvm_vif_dbgfs_register(mvm, vif);
1477 goto out_unlock;
1478 }
1479
1480 mvmvif->features |= hw->netdev_features;
1481
1482 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1483 if (ret)
1484 goto out_release;
1485
1486 ret = iwl_mvm_power_update_mac(mvm);
1487 if (ret)
1488 goto out_remove_mac;
1489
1490 /* beacon filtering */
1491 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1492 if (ret)
1493 goto out_remove_mac;
1494
1495 if (!mvm->bf_allowed_vif &&
1496 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1497 mvm->bf_allowed_vif = mvmvif;
1498 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1499 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1500 }
1501
1502 /*
1503 * P2P_DEVICE interface does not have a channel context assigned to it,
1504 * so a dedicated PHY context is allocated to it and the corresponding
1505 * MAC context is bound to it at this stage.
1506 */
1507 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1508
1509 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1510 if (!mvmvif->phy_ctxt) {
1511 ret = -ENOSPC;
1512 goto out_free_bf;
1513 }
1514
1515 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1516 ret = iwl_mvm_binding_add_vif(mvm, vif);
1517 if (ret)
1518 goto out_unref_phy;
1519
1520 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
1521 if (ret)
1522 goto out_unbind;
1523
1524 /* Save a pointer to p2p device vif, so it can later be used to
1525 * update the p2p device MAC when a GO is started/stopped */
1526 mvm->p2p_device_vif = vif;
1527 }
1528
1529 iwl_mvm_tcm_add_vif(mvm, vif);
1530 INIT_DELAYED_WORK(&mvmvif->csa_work,
1531 iwl_mvm_channel_switch_disconnect_wk);
1532
1533 if (vif->type == NL80211_IFTYPE_MONITOR)
1534 mvm->monitor_on = true;
1535
1536 iwl_mvm_vif_dbgfs_register(mvm, vif);
1537 goto out_unlock;
1538
1539 out_unbind:
1540 iwl_mvm_binding_remove_vif(mvm, vif);
1541 out_unref_phy:
1542 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1543 out_free_bf:
1544 if (mvm->bf_allowed_vif == mvmvif) {
1545 mvm->bf_allowed_vif = NULL;
1546 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1547 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1548 }
1549 out_remove_mac:
1550 mvmvif->phy_ctxt = NULL;
1551 iwl_mvm_mac_ctxt_remove(mvm, vif);
1552 out_release:
1553 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1554 mvm->vif_count--;
1555 out_unlock:
1556 mutex_unlock(&mvm->mutex);
1557
1558 return ret;
1559 }
1560
1561 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1562 struct ieee80211_vif *vif)
1563 {
1564 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1565 /*
1566 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1567 * We assume here that all the packets sent to the OFFCHANNEL
1568 * queue are sent in ROC session.
1569 */
1570 flush_work(&mvm->roc_done_wk);
1571 }
1572 }
1573
1574 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1575 struct ieee80211_vif *vif)
1576 {
1577 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1578 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1579 struct iwl_probe_resp_data *probe_data;
1580
1581 iwl_mvm_prepare_mac_removal(mvm, vif);
1582
1583 if (!(vif->type == NL80211_IFTYPE_AP ||
1584 vif->type == NL80211_IFTYPE_ADHOC))
1585 iwl_mvm_tcm_rm_vif(mvm, vif);
1586
1587 mutex_lock(&mvm->mutex);
1588
1589 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data,
1590 lockdep_is_held(&mvm->mutex));
1591 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1592 if (probe_data)
1593 kfree_rcu(probe_data, rcu_head);
1594
1595 if (mvm->bf_allowed_vif == mvmvif) {
1596 mvm->bf_allowed_vif = NULL;
1597 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1598 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1599 }
1600
1601 if (vif->bss_conf.ftm_responder)
1602 memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1603
1604 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1605
1606 /*
1607 * For AP/GO interface, the tear down of the resources allocated to the
1608 * interface is be handled as part of the stop_ap flow.
1609 */
1610 if (vif->type == NL80211_IFTYPE_AP ||
1611 vif->type == NL80211_IFTYPE_ADHOC) {
1612 #ifdef CONFIG_NL80211_TESTMODE
1613 if (vif == mvm->noa_vif) {
1614 mvm->noa_vif = NULL;
1615 mvm->noa_duration = 0;
1616 }
1617 #endif
1618 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
1619 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1620 goto out_release;
1621 }
1622
1623 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1624 mvm->p2p_device_vif = NULL;
1625 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
1626 iwl_mvm_binding_remove_vif(mvm, vif);
1627 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1628 mvmvif->phy_ctxt = NULL;
1629 }
1630
1631 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1632 mvm->vif_count--;
1633
1634 iwl_mvm_power_update_mac(mvm);
1635 iwl_mvm_mac_ctxt_remove(mvm, vif);
1636
1637 RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1638
1639 if (vif->type == NL80211_IFTYPE_MONITOR)
1640 mvm->monitor_on = false;
1641
1642 out_release:
1643 mutex_unlock(&mvm->mutex);
1644 }
1645
1646 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1647 {
1648 return 0;
1649 }
1650
1651 struct iwl_mvm_mc_iter_data {
1652 struct iwl_mvm *mvm;
1653 int port_id;
1654 };
1655
1656 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1657 struct ieee80211_vif *vif)
1658 {
1659 struct iwl_mvm_mc_iter_data *data = _data;
1660 struct iwl_mvm *mvm = data->mvm;
1661 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1662 struct iwl_host_cmd hcmd = {
1663 .id = MCAST_FILTER_CMD,
1664 .flags = CMD_ASYNC,
1665 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1666 };
1667 int ret, len;
1668
1669 /* if we don't have free ports, mcast frames will be dropped */
1670 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1671 return;
1672
1673 if (vif->type != NL80211_IFTYPE_STATION ||
1674 !vif->bss_conf.assoc)
1675 return;
1676
1677 cmd->port_id = data->port_id++;
1678 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1679 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1680
1681 hcmd.len[0] = len;
1682 hcmd.data[0] = cmd;
1683
1684 ret = iwl_mvm_send_cmd(mvm, &hcmd);
1685 if (ret)
1686 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1687 }
1688
1689 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1690 {
1691 struct iwl_mvm_mc_iter_data iter_data = {
1692 .mvm = mvm,
1693 };
1694
1695 lockdep_assert_held(&mvm->mutex);
1696
1697 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1698 return;
1699
1700 ieee80211_iterate_active_interfaces_atomic(
1701 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1702 iwl_mvm_mc_iface_iterator, &iter_data);
1703 }
1704
1705 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1706 struct netdev_hw_addr_list *mc_list)
1707 {
1708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1709 struct iwl_mcast_filter_cmd *cmd;
1710 struct netdev_hw_addr *addr;
1711 int addr_count;
1712 bool pass_all;
1713 int len;
1714
1715 addr_count = netdev_hw_addr_list_count(mc_list);
1716 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1717 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1718 if (pass_all)
1719 addr_count = 0;
1720
1721 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1722 cmd = kzalloc(len, GFP_ATOMIC);
1723 if (!cmd)
1724 return 0;
1725
1726 if (pass_all) {
1727 cmd->pass_all = 1;
1728 return (u64)(unsigned long)cmd;
1729 }
1730
1731 netdev_hw_addr_list_for_each(addr, mc_list) {
1732 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1733 cmd->count, addr->addr);
1734 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1735 addr->addr, ETH_ALEN);
1736 cmd->count++;
1737 }
1738
1739 return (u64)(unsigned long)cmd;
1740 }
1741
1742 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1743 unsigned int changed_flags,
1744 unsigned int *total_flags,
1745 u64 multicast)
1746 {
1747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1748 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1749
1750 mutex_lock(&mvm->mutex);
1751
1752 /* replace previous configuration */
1753 kfree(mvm->mcast_filter_cmd);
1754 mvm->mcast_filter_cmd = cmd;
1755
1756 if (!cmd)
1757 goto out;
1758
1759 if (changed_flags & FIF_ALLMULTI)
1760 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1761
1762 if (cmd->pass_all)
1763 cmd->count = 0;
1764
1765 iwl_mvm_recalc_multicast(mvm);
1766 out:
1767 mutex_unlock(&mvm->mutex);
1768 *total_flags = 0;
1769 }
1770
1771 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1772 struct ieee80211_vif *vif,
1773 unsigned int filter_flags,
1774 unsigned int changed_flags)
1775 {
1776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1777
1778 /* We support only filter for probe requests */
1779 if (!(changed_flags & FIF_PROBE_REQ))
1780 return;
1781
1782 /* Supported only for p2p client interfaces */
1783 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1784 !vif->p2p)
1785 return;
1786
1787 mutex_lock(&mvm->mutex);
1788 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1789 mutex_unlock(&mvm->mutex);
1790 }
1791
1792 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1793 struct iwl_bcast_iter_data {
1794 struct iwl_mvm *mvm;
1795 struct iwl_bcast_filter_cmd *cmd;
1796 u8 current_filter;
1797 };
1798
1799 static void
1800 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1801 const struct iwl_fw_bcast_filter *in_filter,
1802 struct iwl_fw_bcast_filter *out_filter)
1803 {
1804 struct iwl_fw_bcast_filter_attr *attr;
1805 int i;
1806
1807 memcpy(out_filter, in_filter, sizeof(*out_filter));
1808
1809 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1810 attr = &out_filter->attrs[i];
1811
1812 if (!attr->mask)
1813 break;
1814
1815 switch (attr->reserved1) {
1816 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1817 if (vif->bss_conf.arp_addr_cnt != 1) {
1818 attr->mask = 0;
1819 continue;
1820 }
1821
1822 attr->val = vif->bss_conf.arp_addr_list[0];
1823 break;
1824 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1825 attr->val = *(__be32 *)&vif->addr[2];
1826 break;
1827 default:
1828 break;
1829 }
1830 attr->reserved1 = 0;
1831 out_filter->num_attrs++;
1832 }
1833 }
1834
1835 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1836 struct ieee80211_vif *vif)
1837 {
1838 struct iwl_bcast_iter_data *data = _data;
1839 struct iwl_mvm *mvm = data->mvm;
1840 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1841 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1842 struct iwl_fw_bcast_mac *bcast_mac;
1843 int i;
1844
1845 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1846 return;
1847
1848 bcast_mac = &cmd->macs[mvmvif->id];
1849
1850 /*
1851 * enable filtering only for associated stations, but not for P2P
1852 * Clients
1853 */
1854 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1855 !vif->bss_conf.assoc)
1856 return;
1857
1858 bcast_mac->default_discard = 1;
1859
1860 /* copy all configured filters */
1861 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1862 /*
1863 * Make sure we don't exceed our filters limit.
1864 * if there is still a valid filter to be configured,
1865 * be on the safe side and just allow bcast for this mac.
1866 */
1867 if (WARN_ON_ONCE(data->current_filter >=
1868 ARRAY_SIZE(cmd->filters))) {
1869 bcast_mac->default_discard = 0;
1870 bcast_mac->attached_filters = 0;
1871 break;
1872 }
1873
1874 iwl_mvm_set_bcast_filter(vif,
1875 &mvm->bcast_filters[i],
1876 &cmd->filters[data->current_filter]);
1877
1878 /* skip current filter if it contains no attributes */
1879 if (!cmd->filters[data->current_filter].num_attrs)
1880 continue;
1881
1882 /* attach the filter to current mac */
1883 bcast_mac->attached_filters |=
1884 cpu_to_le16(BIT(data->current_filter));
1885
1886 data->current_filter++;
1887 }
1888 }
1889
1890 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1891 struct iwl_bcast_filter_cmd *cmd)
1892 {
1893 struct iwl_bcast_iter_data iter_data = {
1894 .mvm = mvm,
1895 .cmd = cmd,
1896 };
1897
1898 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1899 return false;
1900
1901 memset(cmd, 0, sizeof(*cmd));
1902 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1903 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1904
1905 #ifdef CONFIG_IWLWIFI_DEBUGFS
1906 /* use debugfs filters/macs if override is configured */
1907 if (mvm->dbgfs_bcast_filtering.override) {
1908 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1909 sizeof(cmd->filters));
1910 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1911 sizeof(cmd->macs));
1912 return true;
1913 }
1914 #endif
1915
1916 /* if no filters are configured, do nothing */
1917 if (!mvm->bcast_filters)
1918 return false;
1919
1920 /* configure and attach these filters for each associated sta vif */
1921 ieee80211_iterate_active_interfaces(
1922 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1923 iwl_mvm_bcast_filter_iterator, &iter_data);
1924
1925 return true;
1926 }
1927
1928 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1929 {
1930 struct iwl_bcast_filter_cmd cmd;
1931
1932 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1933 return 0;
1934
1935 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1936 return 0;
1937
1938 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1939 sizeof(cmd), &cmd);
1940 }
1941 #else
1942 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1943 {
1944 return 0;
1945 }
1946 #endif
1947
1948 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1949 struct ieee80211_vif *vif)
1950 {
1951 struct iwl_mu_group_mgmt_cmd cmd = {};
1952
1953 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1954 WLAN_MEMBERSHIP_LEN);
1955 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1956 WLAN_USER_POSITION_LEN);
1957
1958 return iwl_mvm_send_cmd_pdu(mvm,
1959 WIDE_ID(DATA_PATH_GROUP,
1960 UPDATE_MU_GROUPS_CMD),
1961 0, sizeof(cmd), &cmd);
1962 }
1963
1964 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1965 struct ieee80211_vif *vif)
1966 {
1967 if (vif->mu_mimo_owner) {
1968 struct iwl_mu_group_mgmt_notif *notif = _data;
1969
1970 /*
1971 * MU-MIMO Group Id action frame is little endian. We treat
1972 * the data received from firmware as if it came from the
1973 * action frame, so no conversion is needed.
1974 */
1975 ieee80211_update_mu_groups(vif,
1976 (u8 *)&notif->membership_status,
1977 (u8 *)&notif->user_position);
1978 }
1979 }
1980
1981 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1982 struct iwl_rx_cmd_buffer *rxb)
1983 {
1984 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1985 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1986
1987 ieee80211_iterate_active_interfaces_atomic(
1988 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1989 iwl_mvm_mu_mimo_iface_iterator, notif);
1990 }
1991
1992 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1993 {
1994 u8 byte_num = ppe_pos_bit / 8;
1995 u8 bit_num = ppe_pos_bit % 8;
1996 u8 residue_bits;
1997 u8 res;
1998
1999 if (bit_num <= 5)
2000 return (ppe[byte_num] >> bit_num) &
2001 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
2002
2003 /*
2004 * If bit_num > 5, we have to combine bits with next byte.
2005 * Calculate how many bits we need to take from current byte (called
2006 * here "residue_bits"), and add them to bits from next byte.
2007 */
2008
2009 residue_bits = 8 - bit_num;
2010
2011 res = (ppe[byte_num + 1] &
2012 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
2013 residue_bits;
2014 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
2015
2016 return res;
2017 }
2018
2019 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
2020 struct ieee80211_vif *vif, u8 sta_id)
2021 {
2022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2023 struct iwl_he_sta_context_cmd sta_ctxt_cmd = {
2024 .sta_id = sta_id,
2025 .tid_limit = IWL_MAX_TID_COUNT,
2026 .bss_color = vif->bss_conf.he_bss_color.color,
2027 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
2028 .frame_time_rts_th =
2029 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
2030 };
2031 int size = fw_has_api(&mvm->fw->ucode_capa,
2032 IWL_UCODE_TLV_API_MBSSID_HE) ?
2033 sizeof(sta_ctxt_cmd) :
2034 sizeof(struct iwl_he_sta_context_cmd_v1);
2035 struct ieee80211_sta *sta;
2036 u32 flags;
2037 int i;
2038
2039 rcu_read_lock();
2040
2041 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2042 if (IS_ERR_OR_NULL(sta)) {
2043 rcu_read_unlock();
2044 WARN(1, "Can't find STA to configure HE\n");
2045 return;
2046 }
2047
2048 if (!sta->he_cap.has_he) {
2049 rcu_read_unlock();
2050 return;
2051 }
2052
2053 flags = 0;
2054
2055 /* Block 26-tone RU OFDMA transmissions */
2056 if (mvmvif->he_ru_2mhz_block)
2057 flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2058
2059 /* HTC flags */
2060 if (sta->he_cap.he_cap_elem.mac_cap_info[0] &
2061 IEEE80211_HE_MAC_CAP0_HTC_HE)
2062 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2063 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] &
2064 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2065 (sta->he_cap.he_cap_elem.mac_cap_info[2] &
2066 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2067 u8 link_adap =
2068 ((sta->he_cap.he_cap_elem.mac_cap_info[2] &
2069 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2070 (sta->he_cap.he_cap_elem.mac_cap_info[1] &
2071 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2072
2073 if (link_adap == 2)
2074 sta_ctxt_cmd.htc_flags |=
2075 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2076 else if (link_adap == 3)
2077 sta_ctxt_cmd.htc_flags |=
2078 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2079 }
2080 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2081 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2082 if (sta->he_cap.he_cap_elem.mac_cap_info[3] &
2083 IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2084 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2085 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2086 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2087
2088 /*
2089 * Initialize the PPE thresholds to "None" (7), as described in Table
2090 * 9-262ac of 80211.ax/D3.0.
2091 */
2092 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext));
2093
2094 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
2095 if (sta->he_cap.he_cap_elem.phy_cap_info[6] &
2096 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2097 u8 nss = (sta->he_cap.ppe_thres[0] &
2098 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2099 u8 ru_index_bitmap =
2100 (sta->he_cap.ppe_thres[0] &
2101 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >>
2102 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS;
2103 u8 *ppe = &sta->he_cap.ppe_thres[0];
2104 u8 ppe_pos_bit = 7; /* Starting after PPE header */
2105
2106 /*
2107 * FW currently supports only nss == MAX_HE_SUPP_NSS
2108 *
2109 * If nss > MAX: we can ignore values we don't support
2110 * If nss < MAX: we can set zeros in other streams
2111 */
2112 if (nss > MAX_HE_SUPP_NSS) {
2113 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2114 MAX_HE_SUPP_NSS);
2115 nss = MAX_HE_SUPP_NSS;
2116 }
2117
2118 for (i = 0; i < nss; i++) {
2119 u8 ru_index_tmp = ru_index_bitmap << 1;
2120 u8 bw;
2121
2122 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) {
2123 ru_index_tmp >>= 1;
2124 if (!(ru_index_tmp & 1))
2125 continue;
2126
2127 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] =
2128 iwl_mvm_he_get_ppe_val(ppe,
2129 ppe_pos_bit);
2130 ppe_pos_bit +=
2131 IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2132 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] =
2133 iwl_mvm_he_get_ppe_val(ppe,
2134 ppe_pos_bit);
2135 ppe_pos_bit +=
2136 IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2137 }
2138 }
2139
2140 flags |= STA_CTXT_HE_PACKET_EXT;
2141 } else if ((sta->he_cap.he_cap_elem.phy_cap_info[9] &
2142 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) !=
2143 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_RESERVED) {
2144 int low_th = -1;
2145 int high_th = -1;
2146
2147 /* Take the PPE thresholds from the nominal padding info */
2148 switch (sta->he_cap.he_cap_elem.phy_cap_info[9] &
2149 IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_MASK) {
2150 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_0US:
2151 low_th = IWL_HE_PKT_EXT_NONE;
2152 high_th = IWL_HE_PKT_EXT_NONE;
2153 break;
2154 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_8US:
2155 low_th = IWL_HE_PKT_EXT_BPSK;
2156 high_th = IWL_HE_PKT_EXT_NONE;
2157 break;
2158 case IEEE80211_HE_PHY_CAP9_NOMIMAL_PKT_PADDING_16US:
2159 low_th = IWL_HE_PKT_EXT_NONE;
2160 high_th = IWL_HE_PKT_EXT_BPSK;
2161 break;
2162 }
2163
2164 /* Set the PPE thresholds accordingly */
2165 if (low_th >= 0 && high_th >= 0) {
2166 struct iwl_he_pkt_ext *pkt_ext =
2167 (struct iwl_he_pkt_ext *)&sta_ctxt_cmd.pkt_ext;
2168
2169 for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
2170 u8 bw;
2171
2172 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX;
2173 bw++) {
2174 pkt_ext->pkt_ext_qam_th[i][bw][0] =
2175 low_th;
2176 pkt_ext->pkt_ext_qam_th[i][bw][1] =
2177 high_th;
2178 }
2179 }
2180
2181 flags |= STA_CTXT_HE_PACKET_EXT;
2182 }
2183 }
2184 rcu_read_unlock();
2185
2186 /* Mark MU EDCA as enabled, unless none detected on some AC */
2187 flags |= STA_CTXT_HE_MU_EDCA_CW;
2188 for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2189 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2190 &mvmvif->queue_params[i].mu_edca_param_rec;
2191 u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2192
2193 if (!mvmvif->queue_params[i].mu_edca) {
2194 flags &= ~STA_CTXT_HE_MU_EDCA_CW;
2195 break;
2196 }
2197
2198 sta_ctxt_cmd.trig_based_txf[ac].cwmin =
2199 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2200 sta_ctxt_cmd.trig_based_txf[ac].cwmax =
2201 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2202 sta_ctxt_cmd.trig_based_txf[ac].aifsn =
2203 cpu_to_le16(mu_edca->aifsn);
2204 sta_ctxt_cmd.trig_based_txf[ac].mu_time =
2205 cpu_to_le16(mu_edca->mu_edca_timer);
2206 }
2207
2208 if (vif->bss_conf.multi_sta_back_32bit)
2209 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2210
2211 if (vif->bss_conf.ack_enabled)
2212 flags |= STA_CTXT_HE_ACK_ENABLED;
2213
2214 if (vif->bss_conf.uora_exists) {
2215 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2216
2217 sta_ctxt_cmd.rand_alloc_ecwmin =
2218 vif->bss_conf.uora_ocw_range & 0x7;
2219 sta_ctxt_cmd.rand_alloc_ecwmax =
2220 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2221 }
2222
2223 if (vif->bss_conf.nontransmitted) {
2224 flags |= STA_CTXT_HE_REF_BSSID_VALID;
2225 ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2226 vif->bss_conf.transmitter_bssid);
2227 sta_ctxt_cmd.max_bssid_indicator =
2228 vif->bss_conf.bssid_indicator;
2229 sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2230 sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2231 sta_ctxt_cmd.profile_periodicity =
2232 vif->bss_conf.profile_periodicity;
2233 }
2234
2235 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2236
2237 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD,
2238 DATA_PATH_GROUP, 0),
2239 0, size, &sta_ctxt_cmd))
2240 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2241 }
2242
2243 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2244 struct ieee80211_vif *vif,
2245 struct ieee80211_bss_conf *bss_conf,
2246 u32 changes)
2247 {
2248 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2249 int ret;
2250
2251 /*
2252 * Re-calculate the tsf id, as the master-slave relations depend on the
2253 * beacon interval, which was not known when the station interface was
2254 * added.
2255 */
2256 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
2257 if (vif->bss_conf.he_support &&
2258 !iwlwifi_mod_params.disable_11ax)
2259 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2260
2261 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2262 }
2263
2264 /* Update MU EDCA params */
2265 if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2266 bss_conf->assoc && vif->bss_conf.he_support &&
2267 !iwlwifi_mod_params.disable_11ax)
2268 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2269
2270 /*
2271 * If we're not associated yet, take the (new) BSSID before associating
2272 * so the firmware knows. If we're already associated, then use the old
2273 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2274 * branch for disassociation below.
2275 */
2276 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2277 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2278
2279 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
2280 if (ret)
2281 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2282
2283 /* after sending it once, adopt mac80211 data */
2284 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2285 mvmvif->associated = bss_conf->assoc;
2286
2287 if (changes & BSS_CHANGED_ASSOC) {
2288 if (bss_conf->assoc) {
2289 /* clear statistics to get clean beacon counter */
2290 iwl_mvm_request_statistics(mvm, true);
2291 memset(&mvmvif->beacon_stats, 0,
2292 sizeof(mvmvif->beacon_stats));
2293
2294 /* add quota for this interface */
2295 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2296 if (ret) {
2297 IWL_ERR(mvm, "failed to update quotas\n");
2298 return;
2299 }
2300
2301 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2302 &mvm->status) &&
2303 !fw_has_capa(&mvm->fw->ucode_capa,
2304 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2305 /*
2306 * If we're restarting then the firmware will
2307 * obviously have lost synchronisation with
2308 * the AP. It will attempt to synchronise by
2309 * itself, but we can make it more reliable by
2310 * scheduling a session protection time event.
2311 *
2312 * The firmware needs to receive a beacon to
2313 * catch up with synchronisation, use 110% of
2314 * the beacon interval.
2315 *
2316 * Set a large maximum delay to allow for more
2317 * than a single interface.
2318 *
2319 * For new firmware versions, rely on the
2320 * firmware. This is relevant for DCM scenarios
2321 * only anyway.
2322 */
2323 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2324 iwl_mvm_protect_session(mvm, vif, dur, dur,
2325 5 * dur, false);
2326 }
2327
2328 iwl_mvm_sf_update(mvm, vif, false);
2329 iwl_mvm_power_vif_assoc(mvm, vif);
2330 if (vif->p2p) {
2331 iwl_mvm_update_smps(mvm, vif,
2332 IWL_MVM_SMPS_REQ_PROT,
2333 IEEE80211_SMPS_DYNAMIC);
2334 }
2335 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
2336 /*
2337 * If update fails - SF might be running in associated
2338 * mode while disassociated - which is forbidden.
2339 */
2340 ret = iwl_mvm_sf_update(mvm, vif, false);
2341 WARN_ONCE(ret &&
2342 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2343 &mvm->status),
2344 "Failed to update SF upon disassociation\n");
2345
2346 /*
2347 * If we get an assert during the connection (after the
2348 * station has been added, but before the vif is set
2349 * to associated), mac80211 will re-add the station and
2350 * then configure the vif. Since the vif is not
2351 * associated, we would remove the station here and
2352 * this would fail the recovery.
2353 */
2354 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2355 &mvm->status)) {
2356 /*
2357 * Remove AP station now that
2358 * the MAC is unassoc
2359 */
2360 ret = iwl_mvm_rm_sta_id(mvm, vif,
2361 mvmvif->ap_sta_id);
2362 if (ret)
2363 IWL_ERR(mvm,
2364 "failed to remove AP station\n");
2365
2366 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
2367 }
2368
2369 /* remove quota for this interface */
2370 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2371 if (ret)
2372 IWL_ERR(mvm, "failed to update quotas\n");
2373
2374 /* this will take the cleared BSSID from bss_conf */
2375 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2376 if (ret)
2377 IWL_ERR(mvm,
2378 "failed to update MAC %pM (clear after unassoc)\n",
2379 vif->addr);
2380 }
2381
2382 /*
2383 * The firmware tracks the MU-MIMO group on its own.
2384 * However, on HW restart we should restore this data.
2385 */
2386 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2387 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
2388 ret = iwl_mvm_update_mu_groups(mvm, vif);
2389 if (ret)
2390 IWL_ERR(mvm,
2391 "failed to update VHT MU_MIMO groups\n");
2392 }
2393
2394 iwl_mvm_recalc_multicast(mvm);
2395 iwl_mvm_configure_bcast_filter(mvm);
2396
2397 /* reset rssi values */
2398 mvmvif->bf_data.ave_beacon_signal = 0;
2399
2400 iwl_mvm_bt_coex_vif_change(mvm);
2401 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2402 IEEE80211_SMPS_AUTOMATIC);
2403 if (fw_has_capa(&mvm->fw->ucode_capa,
2404 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2405 iwl_mvm_config_scan(mvm);
2406 }
2407
2408 if (changes & BSS_CHANGED_BEACON_INFO) {
2409 /*
2410 * We received a beacon from the associated AP so
2411 * remove the session protection.
2412 * A firmware with the new API will remove it automatically.
2413 */
2414 if (!fw_has_capa(&mvm->fw->ucode_capa,
2415 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2416 iwl_mvm_stop_session_protection(mvm, vif);
2417
2418 iwl_mvm_sf_update(mvm, vif, false);
2419 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2420 }
2421
2422 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2423 /*
2424 * Send power command on every beacon change,
2425 * because we may have not enabled beacon abort yet.
2426 */
2427 BSS_CHANGED_BEACON_INFO)) {
2428 ret = iwl_mvm_power_update_mac(mvm);
2429 if (ret)
2430 IWL_ERR(mvm, "failed to update power mode\n");
2431 }
2432
2433 if (changes & BSS_CHANGED_TXPOWER) {
2434 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2435 bss_conf->txpower);
2436 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2437 }
2438
2439 if (changes & BSS_CHANGED_CQM) {
2440 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2441 /* reset cqm events tracking */
2442 mvmvif->bf_data.last_cqm_event = 0;
2443 if (mvmvif->bf_data.bf_enabled) {
2444 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2445 if (ret)
2446 IWL_ERR(mvm,
2447 "failed to update CQM thresholds\n");
2448 }
2449 }
2450
2451 if (changes & BSS_CHANGED_ARP_FILTER) {
2452 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2453 iwl_mvm_configure_bcast_filter(mvm);
2454 }
2455 }
2456
2457 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2458 struct ieee80211_vif *vif)
2459 {
2460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2461 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2462 int ret, i;
2463
2464 mutex_lock(&mvm->mutex);
2465
2466 /* Send the beacon template */
2467 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2468 if (ret)
2469 goto out_unlock;
2470
2471 /*
2472 * Re-calculate the tsf id, as the master-slave relations depend on the
2473 * beacon interval, which was not known when the AP interface was added.
2474 */
2475 if (vif->type == NL80211_IFTYPE_AP)
2476 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2477
2478 mvmvif->ap_assoc_sta_count = 0;
2479
2480 /* Add the mac context */
2481 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2482 if (ret)
2483 goto out_unlock;
2484
2485 /* Perform the binding */
2486 ret = iwl_mvm_binding_add_vif(mvm, vif);
2487 if (ret)
2488 goto out_remove;
2489
2490 /*
2491 * This is not very nice, but the simplest:
2492 * For older FWs adding the mcast sta before the bcast station may
2493 * cause assert 0x2b00.
2494 * This is fixed in later FW so make the order of removal depend on
2495 * the TLV
2496 */
2497 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2498 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2499 if (ret)
2500 goto out_unbind;
2501 /*
2502 * Send the bcast station. At this stage the TBTT and DTIM time
2503 * events are added and applied to the scheduler
2504 */
2505 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2506 if (ret) {
2507 iwl_mvm_rm_mcast_sta(mvm, vif);
2508 goto out_unbind;
2509 }
2510 } else {
2511 /*
2512 * Send the bcast station. At this stage the TBTT and DTIM time
2513 * events are added and applied to the scheduler
2514 */
2515 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2516 if (ret)
2517 goto out_unbind;
2518 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2519 if (ret) {
2520 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2521 goto out_unbind;
2522 }
2523 }
2524
2525 /* must be set before quota calculations */
2526 mvmvif->ap_ibss_active = true;
2527
2528 /* send all the early keys to the device now */
2529 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2530 struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2531
2532 if (!key)
2533 continue;
2534
2535 mvmvif->ap_early_keys[i] = NULL;
2536
2537 ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2538 if (ret)
2539 goto out_quota_failed;
2540 }
2541
2542 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2543 iwl_mvm_vif_set_low_latency(mvmvif, true,
2544 LOW_LATENCY_VIF_TYPE);
2545 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2546 }
2547
2548 /* power updated needs to be done before quotas */
2549 iwl_mvm_power_update_mac(mvm);
2550
2551 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2552 if (ret)
2553 goto out_quota_failed;
2554
2555 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2556 if (vif->p2p && mvm->p2p_device_vif)
2557 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2558
2559 iwl_mvm_bt_coex_vif_change(mvm);
2560
2561 /* we don't support TDLS during DCM */
2562 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2563 iwl_mvm_teardown_tdls_peers(mvm);
2564
2565 iwl_mvm_ftm_restart_responder(mvm, vif);
2566
2567 goto out_unlock;
2568
2569 out_quota_failed:
2570 iwl_mvm_power_update_mac(mvm);
2571 mvmvif->ap_ibss_active = false;
2572 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2573 iwl_mvm_rm_mcast_sta(mvm, vif);
2574 out_unbind:
2575 iwl_mvm_binding_remove_vif(mvm, vif);
2576 out_remove:
2577 iwl_mvm_mac_ctxt_remove(mvm, vif);
2578 out_unlock:
2579 mutex_unlock(&mvm->mutex);
2580 return ret;
2581 }
2582
2583 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2584 struct ieee80211_vif *vif)
2585 {
2586 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2587 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2588
2589 iwl_mvm_prepare_mac_removal(mvm, vif);
2590
2591 mutex_lock(&mvm->mutex);
2592
2593 /* Handle AP stop while in CSA */
2594 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2595 iwl_mvm_remove_time_event(mvm, mvmvif,
2596 &mvmvif->time_event_data);
2597 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2598 mvmvif->csa_countdown = false;
2599 }
2600
2601 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2602 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2603 mvm->csa_tx_block_bcn_timeout = 0;
2604 }
2605
2606 mvmvif->ap_ibss_active = false;
2607 mvm->ap_last_beacon_gp2 = 0;
2608
2609 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2610 iwl_mvm_vif_set_low_latency(mvmvif, false,
2611 LOW_LATENCY_VIF_TYPE);
2612 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
2613 }
2614
2615 iwl_mvm_bt_coex_vif_change(mvm);
2616
2617 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2618 if (vif->p2p && mvm->p2p_device_vif)
2619 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2620
2621 iwl_mvm_update_quotas(mvm, false, NULL);
2622
2623 /*
2624 * This is not very nice, but the simplest:
2625 * For older FWs removing the mcast sta before the bcast station may
2626 * cause assert 0x2b00.
2627 * This is fixed in later FW (which will stop beaconing when removing
2628 * bcast station).
2629 * So make the order of removal depend on the TLV
2630 */
2631 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2632 iwl_mvm_rm_mcast_sta(mvm, vif);
2633 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2634 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2635 iwl_mvm_rm_mcast_sta(mvm, vif);
2636 iwl_mvm_binding_remove_vif(mvm, vif);
2637
2638 iwl_mvm_power_update_mac(mvm);
2639
2640 iwl_mvm_mac_ctxt_remove(mvm, vif);
2641
2642 mutex_unlock(&mvm->mutex);
2643 }
2644
2645 static void
2646 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2647 struct ieee80211_vif *vif,
2648 struct ieee80211_bss_conf *bss_conf,
2649 u32 changes)
2650 {
2651 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2652
2653 /* Changes will be applied when the AP/IBSS is started */
2654 if (!mvmvif->ap_ibss_active)
2655 return;
2656
2657 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2658 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2659 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2660 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2661
2662 /* Need to send a new beacon template to the FW */
2663 if (changes & BSS_CHANGED_BEACON &&
2664 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2665 IWL_WARN(mvm, "Failed updating beacon data\n");
2666
2667 if (changes & BSS_CHANGED_TXPOWER) {
2668 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2669 bss_conf->txpower);
2670 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2671 }
2672
2673 if (changes & BSS_CHANGED_FTM_RESPONDER) {
2674 int ret = iwl_mvm_ftm_start_responder(mvm, vif);
2675
2676 if (ret)
2677 IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
2678 ret);
2679 }
2680
2681 }
2682
2683 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2684 struct ieee80211_vif *vif,
2685 struct ieee80211_bss_conf *bss_conf,
2686 u32 changes)
2687 {
2688 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2689
2690 mutex_lock(&mvm->mutex);
2691
2692 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2693 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2694
2695 switch (vif->type) {
2696 case NL80211_IFTYPE_STATION:
2697 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2698 break;
2699 case NL80211_IFTYPE_AP:
2700 case NL80211_IFTYPE_ADHOC:
2701 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2702 break;
2703 case NL80211_IFTYPE_MONITOR:
2704 if (changes & BSS_CHANGED_MU_GROUPS)
2705 iwl_mvm_update_mu_groups(mvm, vif);
2706 break;
2707 default:
2708 /* shouldn't happen */
2709 WARN_ON_ONCE(1);
2710 }
2711
2712 mutex_unlock(&mvm->mutex);
2713 }
2714
2715 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2716 struct ieee80211_vif *vif,
2717 struct ieee80211_scan_request *hw_req)
2718 {
2719 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2720 int ret;
2721
2722 if (hw_req->req.n_channels == 0 ||
2723 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2724 return -EINVAL;
2725
2726 mutex_lock(&mvm->mutex);
2727 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2728 mutex_unlock(&mvm->mutex);
2729
2730 return ret;
2731 }
2732
2733 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2734 struct ieee80211_vif *vif)
2735 {
2736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2737
2738 mutex_lock(&mvm->mutex);
2739
2740 /* Due to a race condition, it's possible that mac80211 asks
2741 * us to stop a hw_scan when it's already stopped. This can
2742 * happen, for instance, if we stopped the scan ourselves,
2743 * called ieee80211_scan_completed() and the userspace called
2744 * cancel scan scan before ieee80211_scan_work() could run.
2745 * To handle that, simply return if the scan is not running.
2746 */
2747 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2748 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2749
2750 mutex_unlock(&mvm->mutex);
2751 }
2752
2753 static void
2754 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2755 struct ieee80211_sta *sta, u16 tids,
2756 int num_frames,
2757 enum ieee80211_frame_release_type reason,
2758 bool more_data)
2759 {
2760 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2761
2762 /* Called when we need to transmit (a) frame(s) from mac80211 */
2763
2764 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2765 tids, more_data, false);
2766 }
2767
2768 static void
2769 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2770 struct ieee80211_sta *sta, u16 tids,
2771 int num_frames,
2772 enum ieee80211_frame_release_type reason,
2773 bool more_data)
2774 {
2775 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2776
2777 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
2778
2779 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2780 tids, more_data, true);
2781 }
2782
2783 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2784 enum sta_notify_cmd cmd,
2785 struct ieee80211_sta *sta)
2786 {
2787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2788 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2789 unsigned long txqs = 0, tids = 0;
2790 int tid;
2791
2792 /*
2793 * If we have TVQM then we get too high queue numbers - luckily
2794 * we really shouldn't get here with that because such hardware
2795 * should have firmware supporting buffer station offload.
2796 */
2797 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2798 return;
2799
2800 spin_lock_bh(&mvmsta->lock);
2801 for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
2802 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2803
2804 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
2805 continue;
2806
2807 __set_bit(tid_data->txq_id, &txqs);
2808
2809 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
2810 continue;
2811
2812 __set_bit(tid, &tids);
2813 }
2814
2815 switch (cmd) {
2816 case STA_NOTIFY_SLEEP:
2817 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2818 ieee80211_sta_set_buffered(sta, tid, true);
2819
2820 if (txqs)
2821 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2822 /*
2823 * The fw updates the STA to be asleep. Tx packets on the Tx
2824 * queues to this station will not be transmitted. The fw will
2825 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2826 */
2827 break;
2828 case STA_NOTIFY_AWAKE:
2829 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
2830 break;
2831
2832 if (txqs)
2833 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2834 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2835 break;
2836 default:
2837 break;
2838 }
2839 spin_unlock_bh(&mvmsta->lock);
2840 }
2841
2842 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2843 struct ieee80211_vif *vif,
2844 enum sta_notify_cmd cmd,
2845 struct ieee80211_sta *sta)
2846 {
2847 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2848 }
2849
2850 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2851 {
2852 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2853 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2854 struct ieee80211_sta *sta;
2855 struct iwl_mvm_sta *mvmsta;
2856 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2857
2858 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2859 return;
2860
2861 rcu_read_lock();
2862 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
2863 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2864 rcu_read_unlock();
2865 return;
2866 }
2867
2868 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2869
2870 if (!mvmsta->vif ||
2871 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2872 rcu_read_unlock();
2873 return;
2874 }
2875
2876 if (mvmsta->sleeping != sleeping) {
2877 mvmsta->sleeping = sleeping;
2878 __iwl_mvm_mac_sta_notify(mvm->hw,
2879 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2880 sta);
2881 ieee80211_sta_ps_transition(sta, sleeping);
2882 }
2883
2884 if (sleeping) {
2885 switch (notif->type) {
2886 case IWL_MVM_PM_EVENT_AWAKE:
2887 case IWL_MVM_PM_EVENT_ASLEEP:
2888 break;
2889 case IWL_MVM_PM_EVENT_UAPSD:
2890 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2891 break;
2892 case IWL_MVM_PM_EVENT_PS_POLL:
2893 ieee80211_sta_pspoll(sta);
2894 break;
2895 default:
2896 break;
2897 }
2898 }
2899
2900 rcu_read_unlock();
2901 }
2902
2903 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2904 struct ieee80211_vif *vif,
2905 struct ieee80211_sta *sta)
2906 {
2907 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2908 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2909
2910 /*
2911 * This is called before mac80211 does RCU synchronisation,
2912 * so here we already invalidate our internal RCU-protected
2913 * station pointer. The rest of the code will thus no longer
2914 * be able to find the station this way, and we don't rely
2915 * on further RCU synchronisation after the sta_state()
2916 * callback deleted the station.
2917 */
2918 mutex_lock(&mvm->mutex);
2919 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2920 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2921 ERR_PTR(-ENOENT));
2922
2923 mutex_unlock(&mvm->mutex);
2924 }
2925
2926 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2927 const u8 *bssid)
2928 {
2929 int i;
2930
2931 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
2932 struct iwl_mvm_tcm_mac *mdata;
2933
2934 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
2935 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
2936 mdata->opened_rx_ba_sessions = false;
2937 }
2938
2939 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2940 return;
2941
2942 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
2943 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2944 return;
2945 }
2946
2947 if (!vif->p2p &&
2948 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
2949 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2950 return;
2951 }
2952
2953 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
2954 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
2955 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2956 return;
2957 }
2958 }
2959
2960 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2961 }
2962
2963 static void
2964 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2965 struct ieee80211_vif *vif, u8 *peer_addr,
2966 enum nl80211_tdls_operation action)
2967 {
2968 struct iwl_fw_dbg_trigger_tlv *trig;
2969 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2970
2971 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
2972 FW_DBG_TRIGGER_TDLS);
2973 if (!trig)
2974 return;
2975
2976 tdls_trig = (void *)trig->data;
2977
2978 if (!(tdls_trig->action_bitmap & BIT(action)))
2979 return;
2980
2981 if (tdls_trig->peer_mode &&
2982 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2983 return;
2984
2985 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2986 "TDLS event occurred, peer %pM, action %d",
2987 peer_addr, action);
2988 }
2989
2990 struct iwl_mvm_he_obss_narrow_bw_ru_data {
2991 bool tolerated;
2992 };
2993
2994 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
2995 struct cfg80211_bss *bss,
2996 void *_data)
2997 {
2998 struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
2999 const struct element *elem;
3000
3001 elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, bss->ies->data,
3002 bss->ies->len);
3003
3004 if (!elem || elem->datalen < 10 ||
3005 !(elem->data[10] &
3006 WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
3007 data->tolerated = false;
3008 }
3009 }
3010
3011 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
3012 struct ieee80211_vif *vif)
3013 {
3014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3015 struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3016 .tolerated = true,
3017 };
3018
3019 if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
3020 mvmvif->he_ru_2mhz_block = false;
3021 return;
3022 }
3023
3024 cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef,
3025 iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3026 &iter_data);
3027
3028 /*
3029 * If there is at least one AP on radar channel that cannot
3030 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3031 */
3032 mvmvif->he_ru_2mhz_block = !iter_data.tolerated;
3033 }
3034
3035 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3036 struct ieee80211_vif *vif,
3037 struct ieee80211_sta *sta,
3038 enum ieee80211_sta_state old_state,
3039 enum ieee80211_sta_state new_state)
3040 {
3041 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3042 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3043 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3044 int ret;
3045
3046 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
3047 sta->addr, old_state, new_state);
3048
3049 /* this would be a mac80211 bug ... but don't crash */
3050 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
3051 return -EINVAL;
3052
3053 /*
3054 * If we are in a STA removal flow and in DQA mode:
3055 *
3056 * This is after the sync_rcu part, so the queues have already been
3057 * flushed. No more TXs on their way in mac80211's path, and no more in
3058 * the queues.
3059 * Also, we won't be getting any new TX frames for this station.
3060 * What we might have are deferred TX frames that need to be taken care
3061 * of.
3062 *
3063 * Drop any still-queued deferred-frame before removing the STA, and
3064 * make sure the worker is no longer handling frames for this STA.
3065 */
3066 if (old_state == IEEE80211_STA_NONE &&
3067 new_state == IEEE80211_STA_NOTEXIST) {
3068 flush_work(&mvm->add_stream_wk);
3069
3070 /*
3071 * No need to make sure deferred TX indication is off since the
3072 * worker will already remove it if it was on
3073 */
3074 }
3075
3076 mutex_lock(&mvm->mutex);
3077 /* track whether or not the station is associated */
3078 mvm_sta->sta_state = new_state;
3079
3080 if (old_state == IEEE80211_STA_NOTEXIST &&
3081 new_state == IEEE80211_STA_NONE) {
3082 /*
3083 * Firmware bug - it'll crash if the beacon interval is less
3084 * than 16. We can't avoid connecting at all, so refuse the
3085 * station state change, this will cause mac80211 to abandon
3086 * attempts to connect to this AP, and eventually wpa_s will
3087 * blacklist the AP...
3088 */
3089 if (vif->type == NL80211_IFTYPE_STATION &&
3090 vif->bss_conf.beacon_int < 16) {
3091 IWL_ERR(mvm,
3092 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
3093 sta->addr, vif->bss_conf.beacon_int);
3094 ret = -EINVAL;
3095 goto out_unlock;
3096 }
3097
3098 if (sta->tdls &&
3099 (vif->p2p ||
3100 iwl_mvm_tdls_sta_count(mvm, NULL) ==
3101 IWL_MVM_TDLS_STA_COUNT ||
3102 iwl_mvm_phy_ctx_count(mvm) > 1)) {
3103 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3104 ret = -EBUSY;
3105 goto out_unlock;
3106 }
3107
3108 ret = iwl_mvm_add_sta(mvm, vif, sta);
3109 if (sta->tdls && ret == 0) {
3110 iwl_mvm_recalc_tdls_state(mvm, vif, true);
3111 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3112 NL80211_TDLS_SETUP);
3113 }
3114
3115 sta->max_rc_amsdu_len = 1;
3116 } else if (old_state == IEEE80211_STA_NONE &&
3117 new_state == IEEE80211_STA_AUTH) {
3118 /*
3119 * EBS may be disabled due to previous failures reported by FW.
3120 * Reset EBS status here assuming environment has been changed.
3121 */
3122 mvm->last_ebs_successful = true;
3123 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
3124 ret = 0;
3125 } else if (old_state == IEEE80211_STA_AUTH &&
3126 new_state == IEEE80211_STA_ASSOC) {
3127 if (vif->type == NL80211_IFTYPE_AP) {
3128 vif->bss_conf.he_support = sta->he_cap.has_he;
3129 mvmvif->ap_assoc_sta_count++;
3130 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3131 if (vif->bss_conf.he_support &&
3132 !iwlwifi_mod_params.disable_11ax)
3133 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id);
3134 } else if (vif->type == NL80211_IFTYPE_STATION) {
3135 vif->bss_conf.he_support = sta->he_cap.has_he;
3136
3137 mvmvif->he_ru_2mhz_block = false;
3138 if (sta->he_cap.has_he)
3139 iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif);
3140
3141 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3142 }
3143
3144 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3145 false);
3146 ret = iwl_mvm_update_sta(mvm, vif, sta);
3147 } else if (old_state == IEEE80211_STA_ASSOC &&
3148 new_state == IEEE80211_STA_AUTHORIZED) {
3149 ret = 0;
3150
3151 /* we don't support TDLS during DCM */
3152 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3153 iwl_mvm_teardown_tdls_peers(mvm);
3154
3155 if (sta->tdls)
3156 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3157 NL80211_TDLS_ENABLE_LINK);
3158
3159 /* enable beacon filtering */
3160 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
3161
3162 /*
3163 * Now that the station is authorized, i.e., keys were already
3164 * installed, need to indicate to the FW that
3165 * multicast data frames can be forwarded to the driver
3166 */
3167 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3168
3169 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3170 true);
3171 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
3172 new_state == IEEE80211_STA_ASSOC) {
3173 /* Multicast data frames are no longer allowed */
3174 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3175
3176 /* disable beacon filtering */
3177 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3178 WARN_ON(ret &&
3179 !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3180 &mvm->status));
3181 ret = 0;
3182 } else if (old_state == IEEE80211_STA_ASSOC &&
3183 new_state == IEEE80211_STA_AUTH) {
3184 if (vif->type == NL80211_IFTYPE_AP) {
3185 mvmvif->ap_assoc_sta_count--;
3186 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3187 }
3188 ret = 0;
3189 } else if (old_state == IEEE80211_STA_AUTH &&
3190 new_state == IEEE80211_STA_NONE) {
3191 ret = 0;
3192 } else if (old_state == IEEE80211_STA_NONE &&
3193 new_state == IEEE80211_STA_NOTEXIST) {
3194 ret = iwl_mvm_rm_sta(mvm, vif, sta);
3195 if (sta->tdls) {
3196 iwl_mvm_recalc_tdls_state(mvm, vif, false);
3197 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3198 NL80211_TDLS_DISABLE_LINK);
3199 }
3200
3201 if (unlikely(ret &&
3202 test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3203 &mvm->status)))
3204 ret = 0;
3205 } else {
3206 ret = -EIO;
3207 }
3208 out_unlock:
3209 mutex_unlock(&mvm->mutex);
3210
3211 if (sta->tdls && ret == 0) {
3212 if (old_state == IEEE80211_STA_NOTEXIST &&
3213 new_state == IEEE80211_STA_NONE)
3214 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3215 else if (old_state == IEEE80211_STA_NONE &&
3216 new_state == IEEE80211_STA_NOTEXIST)
3217 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3218 }
3219
3220 return ret;
3221 }
3222
3223 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3224 {
3225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3226
3227 mvm->rts_threshold = value;
3228
3229 return 0;
3230 }
3231
3232 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
3233 struct ieee80211_vif *vif,
3234 struct ieee80211_sta *sta, u32 changed)
3235 {
3236 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3237 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3238
3239 if (changed & (IEEE80211_RC_BW_CHANGED |
3240 IEEE80211_RC_SUPP_RATES_CHANGED |
3241 IEEE80211_RC_NSS_CHANGED))
3242 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3243 true);
3244
3245 if (vif->type == NL80211_IFTYPE_STATION &&
3246 changed & IEEE80211_RC_NSS_CHANGED)
3247 iwl_mvm_sf_update(mvm, vif, false);
3248 }
3249
3250 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
3251 struct ieee80211_vif *vif, u16 ac,
3252 const struct ieee80211_tx_queue_params *params)
3253 {
3254 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3255 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3256
3257 mvmvif->queue_params[ac] = *params;
3258
3259 /*
3260 * No need to update right away, we'll get BSS_CHANGED_QOS
3261 * The exception is P2P_DEVICE interface which needs immediate update.
3262 */
3263 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
3264 int ret;
3265
3266 mutex_lock(&mvm->mutex);
3267 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3268 mutex_unlock(&mvm->mutex);
3269 return ret;
3270 }
3271 return 0;
3272 }
3273
3274 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
3275 struct ieee80211_vif *vif,
3276 u16 req_duration)
3277 {
3278 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3279 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
3280 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
3281
3282 if (req_duration > duration)
3283 duration = req_duration;
3284
3285 mutex_lock(&mvm->mutex);
3286 /* Try really hard to protect the session and hear a beacon
3287 * The new session protection command allows us to protect the
3288 * session for a much longer time since the firmware will internally
3289 * create two events: a 300TU one with a very high priority that
3290 * won't be fragmented which should be enough for 99% of the cases,
3291 * and another one (which we configure here to be 900TU long) which
3292 * will have a slightly lower priority, but more importantly, can be
3293 * fragmented so that it'll allow other activities to run.
3294 */
3295 if (fw_has_capa(&mvm->fw->ucode_capa,
3296 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
3297 iwl_mvm_schedule_session_protection(mvm, vif, 900,
3298 min_duration, false);
3299 else
3300 iwl_mvm_protect_session(mvm, vif, duration,
3301 min_duration, 500, false);
3302 mutex_unlock(&mvm->mutex);
3303 }
3304
3305 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
3306 struct ieee80211_vif *vif,
3307 struct cfg80211_sched_scan_request *req,
3308 struct ieee80211_scan_ies *ies)
3309 {
3310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3311
3312 int ret;
3313
3314 mutex_lock(&mvm->mutex);
3315
3316 if (!vif->bss_conf.idle) {
3317 ret = -EBUSY;
3318 goto out;
3319 }
3320
3321 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
3322
3323 out:
3324 mutex_unlock(&mvm->mutex);
3325 return ret;
3326 }
3327
3328 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
3329 struct ieee80211_vif *vif)
3330 {
3331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3332 int ret;
3333
3334 mutex_lock(&mvm->mutex);
3335
3336 /* Due to a race condition, it's possible that mac80211 asks
3337 * us to stop a sched_scan when it's already stopped. This
3338 * can happen, for instance, if we stopped the scan ourselves,
3339 * called ieee80211_sched_scan_stopped() and the userspace called
3340 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
3341 * could run. To handle this, simply return if the scan is
3342 * not running.
3343 */
3344 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
3345 mutex_unlock(&mvm->mutex);
3346 return 0;
3347 }
3348
3349 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
3350 mutex_unlock(&mvm->mutex);
3351 iwl_mvm_wait_for_async_handlers(mvm);
3352
3353 return ret;
3354 }
3355
3356 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3357 enum set_key_cmd cmd,
3358 struct ieee80211_vif *vif,
3359 struct ieee80211_sta *sta,
3360 struct ieee80211_key_conf *key)
3361 {
3362 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3364 struct iwl_mvm_sta *mvmsta;
3365 struct iwl_mvm_key_pn *ptk_pn;
3366 int keyidx = key->keyidx;
3367 int ret, i;
3368 u8 key_offset;
3369
3370 if (iwlwifi_mod_params.swcrypto) {
3371 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
3372 return -EOPNOTSUPP;
3373 }
3374
3375 switch (key->cipher) {
3376 case WLAN_CIPHER_SUITE_TKIP:
3377 if (!mvm->trans->trans_cfg->gen2) {
3378 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
3379 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3380 } else if (vif->type == NL80211_IFTYPE_STATION) {
3381 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
3382 } else {
3383 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
3384 return -EOPNOTSUPP;
3385 }
3386 break;
3387 case WLAN_CIPHER_SUITE_CCMP:
3388 case WLAN_CIPHER_SUITE_GCMP:
3389 case WLAN_CIPHER_SUITE_GCMP_256:
3390 if (!iwl_mvm_has_new_tx_api(mvm))
3391 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3392 break;
3393 case WLAN_CIPHER_SUITE_AES_CMAC:
3394 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3395 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
3396 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
3397 break;
3398 case WLAN_CIPHER_SUITE_WEP40:
3399 case WLAN_CIPHER_SUITE_WEP104:
3400 if (vif->type == NL80211_IFTYPE_STATION)
3401 break;
3402 if (iwl_mvm_has_new_tx_api(mvm))
3403 return -EOPNOTSUPP;
3404 /* support HW crypto on TX */
3405 return 0;
3406 default:
3407 /* currently FW supports only one optional cipher scheme */
3408 if (hw->n_cipher_schemes &&
3409 hw->cipher_schemes->cipher == key->cipher)
3410 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3411 else
3412 return -EOPNOTSUPP;
3413 }
3414
3415 switch (cmd) {
3416 case SET_KEY:
3417 if ((vif->type == NL80211_IFTYPE_ADHOC ||
3418 vif->type == NL80211_IFTYPE_AP) && !sta) {
3419 /*
3420 * GTK on AP interface is a TX-only key, return 0;
3421 * on IBSS they're per-station and because we're lazy
3422 * we don't support them for RX, so do the same.
3423 * CMAC/GMAC in AP/IBSS modes must be done in software.
3424 */
3425 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
3426 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
3427 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
3428 ret = -EOPNOTSUPP;
3429 else
3430 ret = 0;
3431
3432 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
3433 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
3434 !iwl_mvm_has_new_tx_api(mvm)) {
3435 key->hw_key_idx = STA_KEY_IDX_INVALID;
3436 break;
3437 }
3438
3439 if (!mvmvif->ap_ibss_active) {
3440 for (i = 0;
3441 i < ARRAY_SIZE(mvmvif->ap_early_keys);
3442 i++) {
3443 if (!mvmvif->ap_early_keys[i]) {
3444 mvmvif->ap_early_keys[i] = key;
3445 break;
3446 }
3447 }
3448
3449 if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
3450 ret = -ENOSPC;
3451
3452 break;
3453 }
3454 }
3455
3456 /* During FW restart, in order to restore the state as it was,
3457 * don't try to reprogram keys we previously failed for.
3458 */
3459 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3460 key->hw_key_idx == STA_KEY_IDX_INVALID) {
3461 IWL_DEBUG_MAC80211(mvm,
3462 "skip invalid idx key programming during restart\n");
3463 ret = 0;
3464 break;
3465 }
3466
3467 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3468 sta && iwl_mvm_has_new_rx_api(mvm) &&
3469 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3470 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3471 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3472 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3473 struct ieee80211_key_seq seq;
3474 int tid, q;
3475
3476 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3477 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
3478 ptk_pn = kzalloc(struct_size(ptk_pn, q,
3479 mvm->trans->num_rx_queues),
3480 GFP_KERNEL);
3481 if (!ptk_pn) {
3482 ret = -ENOMEM;
3483 break;
3484 }
3485
3486 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
3487 ieee80211_get_key_rx_seq(key, tid, &seq);
3488 for (q = 0; q < mvm->trans->num_rx_queues; q++)
3489 memcpy(ptk_pn->q[q].pn[tid],
3490 seq.ccmp.pn,
3491 IEEE80211_CCMP_PN_LEN);
3492 }
3493
3494 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
3495 }
3496
3497 /* in HW restart reuse the index, otherwise request a new one */
3498 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3499 key_offset = key->hw_key_idx;
3500 else
3501 key_offset = STA_KEY_IDX_INVALID;
3502
3503 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
3504 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
3505 if (ret) {
3506 IWL_WARN(mvm, "set key failed\n");
3507 key->hw_key_idx = STA_KEY_IDX_INVALID;
3508 /*
3509 * can't add key for RX, but we don't need it
3510 * in the device for TX so still return 0,
3511 * unless we have new TX API where we cannot
3512 * put key material into the TX_CMD
3513 */
3514 if (iwl_mvm_has_new_tx_api(mvm))
3515 ret = -EOPNOTSUPP;
3516 else
3517 ret = 0;
3518 }
3519
3520 break;
3521 case DISABLE_KEY:
3522 ret = -ENOENT;
3523 for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
3524 if (mvmvif->ap_early_keys[i] == key) {
3525 mvmvif->ap_early_keys[i] = NULL;
3526 ret = 0;
3527 }
3528 }
3529
3530 /* found in pending list - don't do anything else */
3531 if (ret == 0)
3532 break;
3533
3534 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3535 ret = 0;
3536 break;
3537 }
3538
3539 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3540 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3541 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3542 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3543 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3544 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3545 ptk_pn = rcu_dereference_protected(
3546 mvmsta->ptk_pn[keyidx],
3547 lockdep_is_held(&mvm->mutex));
3548 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3549 if (ptk_pn)
3550 kfree_rcu(ptk_pn, rcu_head);
3551 }
3552
3553 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3554 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3555 break;
3556 default:
3557 ret = -EINVAL;
3558 }
3559
3560 return ret;
3561 }
3562
3563 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3564 enum set_key_cmd cmd,
3565 struct ieee80211_vif *vif,
3566 struct ieee80211_sta *sta,
3567 struct ieee80211_key_conf *key)
3568 {
3569 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3570 int ret;
3571
3572 mutex_lock(&mvm->mutex);
3573 ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
3574 mutex_unlock(&mvm->mutex);
3575
3576 return ret;
3577 }
3578
3579 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3580 struct ieee80211_vif *vif,
3581 struct ieee80211_key_conf *keyconf,
3582 struct ieee80211_sta *sta,
3583 u32 iv32, u16 *phase1key)
3584 {
3585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3586
3587 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3588 return;
3589
3590 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3591 }
3592
3593
3594 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3595 struct iwl_rx_packet *pkt, void *data)
3596 {
3597 struct iwl_mvm *mvm =
3598 container_of(notif_wait, struct iwl_mvm, notif_wait);
3599 struct iwl_hs20_roc_res *resp;
3600 int resp_len = iwl_rx_packet_payload_len(pkt);
3601 struct iwl_mvm_time_event_data *te_data = data;
3602
3603 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3604 return true;
3605
3606 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3607 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3608 return true;
3609 }
3610
3611 resp = (void *)pkt->data;
3612
3613 IWL_DEBUG_TE(mvm,
3614 "Aux ROC: Received response from ucode: status=%d uid=%d\n",
3615 resp->status, resp->event_unique_id);
3616
3617 te_data->uid = le32_to_cpu(resp->event_unique_id);
3618 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3619 te_data->uid);
3620
3621 spin_lock_bh(&mvm->time_event_lock);
3622 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3623 spin_unlock_bh(&mvm->time_event_lock);
3624
3625 return true;
3626 }
3627
3628 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3629 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3630 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3631 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3632 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
3633 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3634 struct ieee80211_channel *channel,
3635 struct ieee80211_vif *vif,
3636 int duration)
3637 {
3638 int res;
3639 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3640 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3641 static const u16 time_event_response[] = { HOT_SPOT_CMD };
3642 struct iwl_notification_wait wait_time_event;
3643 u32 dtim_interval = vif->bss_conf.dtim_period *
3644 vif->bss_conf.beacon_int;
3645 u32 req_dur, delay;
3646 struct iwl_hs20_roc_req aux_roc_req = {
3647 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3648 .id_and_color =
3649 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3650 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3651 };
3652 struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
3653 &aux_roc_req.channel_info);
3654 u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
3655
3656 /* Set the channel info data */
3657 iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
3658 iwl_mvm_phy_band_from_nl80211(channel->band),
3659 PHY_VHT_CHANNEL_MODE20,
3660 0);
3661
3662 /* Set the time and duration */
3663 tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
3664
3665 delay = AUX_ROC_MIN_DELAY;
3666 req_dur = MSEC_TO_TU(duration);
3667
3668 /*
3669 * If we are associated we want the delay time to be at least one
3670 * dtim interval so that the FW can wait until after the DTIM and
3671 * then start the time event, this will potentially allow us to
3672 * remain off-channel for the max duration.
3673 * Since we want to use almost a whole dtim interval we would also
3674 * like the delay to be for 2-3 dtim intervals, in case there are
3675 * other time events with higher priority.
3676 */
3677 if (vif->bss_conf.assoc) {
3678 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3679 /* We cannot remain off-channel longer than the DTIM interval */
3680 if (dtim_interval <= req_dur) {
3681 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3682 if (req_dur <= AUX_ROC_MIN_DURATION)
3683 req_dur = dtim_interval -
3684 AUX_ROC_MIN_SAFETY_BUFFER;
3685 }
3686 }
3687
3688 tail->duration = cpu_to_le32(req_dur);
3689 tail->apply_time_max_delay = cpu_to_le32(delay);
3690
3691 IWL_DEBUG_TE(mvm,
3692 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3693 channel->hw_value, req_dur, duration, delay,
3694 dtim_interval);
3695 /* Set the node address */
3696 memcpy(tail->node_addr, vif->addr, ETH_ALEN);
3697
3698 lockdep_assert_held(&mvm->mutex);
3699
3700 spin_lock_bh(&mvm->time_event_lock);
3701
3702 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3703 spin_unlock_bh(&mvm->time_event_lock);
3704 return -EIO;
3705 }
3706
3707 te_data->vif = vif;
3708 te_data->duration = duration;
3709 te_data->id = HOT_SPOT_CMD;
3710
3711 spin_unlock_bh(&mvm->time_event_lock);
3712
3713 /*
3714 * Use a notification wait, which really just processes the
3715 * command response and doesn't wait for anything, in order
3716 * to be able to process the response and get the UID inside
3717 * the RX path. Using CMD_WANT_SKB doesn't work because it
3718 * stores the buffer and then wakes up this thread, by which
3719 * time another notification (that the time event started)
3720 * might already be processed unsuccessfully.
3721 */
3722 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3723 time_event_response,
3724 ARRAY_SIZE(time_event_response),
3725 iwl_mvm_rx_aux_roc, te_data);
3726
3727 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
3728 &aux_roc_req);
3729
3730 if (res) {
3731 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3732 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3733 goto out_clear_te;
3734 }
3735
3736 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3737 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3738 /* should never fail */
3739 WARN_ON_ONCE(res);
3740
3741 if (res) {
3742 out_clear_te:
3743 spin_lock_bh(&mvm->time_event_lock);
3744 iwl_mvm_te_clear_data(mvm, te_data);
3745 spin_unlock_bh(&mvm->time_event_lock);
3746 }
3747
3748 return res;
3749 }
3750
3751 static int iwl_mvm_roc(struct ieee80211_hw *hw,
3752 struct ieee80211_vif *vif,
3753 struct ieee80211_channel *channel,
3754 int duration,
3755 enum ieee80211_roc_type type)
3756 {
3757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3758 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3759 struct cfg80211_chan_def chandef;
3760 struct iwl_mvm_phy_ctxt *phy_ctxt;
3761 int ret, i;
3762
3763 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3764 duration, type);
3765
3766 /*
3767 * Flush the done work, just in case it's still pending, so that
3768 * the work it does can complete and we can accept new frames.
3769 */
3770 flush_work(&mvm->roc_done_wk);
3771
3772 mutex_lock(&mvm->mutex);
3773
3774 switch (vif->type) {
3775 case NL80211_IFTYPE_STATION:
3776 if (fw_has_capa(&mvm->fw->ucode_capa,
3777 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3778 /* Use aux roc framework (HS20) */
3779 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3780 vif, duration);
3781 goto out_unlock;
3782 }
3783 IWL_ERR(mvm, "hotspot not supported\n");
3784 ret = -EINVAL;
3785 goto out_unlock;
3786 case NL80211_IFTYPE_P2P_DEVICE:
3787 /* handle below */
3788 break;
3789 default:
3790 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3791 ret = -EINVAL;
3792 goto out_unlock;
3793 }
3794
3795 for (i = 0; i < NUM_PHY_CTX; i++) {
3796 phy_ctxt = &mvm->phy_ctxts[i];
3797 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3798 continue;
3799
3800 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3801 /*
3802 * Unbind the P2P_DEVICE from the current PHY context,
3803 * and if the PHY context is not used remove it.
3804 */
3805 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3806 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3807 goto out_unlock;
3808
3809 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3810
3811 /* Bind the P2P_DEVICE to the current PHY Context */
3812 mvmvif->phy_ctxt = phy_ctxt;
3813
3814 ret = iwl_mvm_binding_add_vif(mvm, vif);
3815 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3816 goto out_unlock;
3817
3818 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3819 goto schedule_time_event;
3820 }
3821 }
3822
3823 /* Need to update the PHY context only if the ROC channel changed */
3824 if (channel == mvmvif->phy_ctxt->channel)
3825 goto schedule_time_event;
3826
3827 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3828
3829 /*
3830 * Change the PHY context configuration as it is currently referenced
3831 * only by the P2P Device MAC
3832 */
3833 if (mvmvif->phy_ctxt->ref == 1) {
3834 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3835 &chandef, 1, 1);
3836 if (ret)
3837 goto out_unlock;
3838 } else {
3839 /*
3840 * The PHY context is shared with other MACs. Need to remove the
3841 * P2P Device from the binding, allocate an new PHY context and
3842 * create a new binding
3843 */
3844 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3845 if (!phy_ctxt) {
3846 ret = -ENOSPC;
3847 goto out_unlock;
3848 }
3849
3850 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3851 1, 1);
3852 if (ret) {
3853 IWL_ERR(mvm, "Failed to change PHY context\n");
3854 goto out_unlock;
3855 }
3856
3857 /* Unbind the P2P_DEVICE from the current PHY context */
3858 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3859 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3860 goto out_unlock;
3861
3862 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3863
3864 /* Bind the P2P_DEVICE to the new allocated PHY context */
3865 mvmvif->phy_ctxt = phy_ctxt;
3866
3867 ret = iwl_mvm_binding_add_vif(mvm, vif);
3868 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3869 goto out_unlock;
3870
3871 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3872 }
3873
3874 schedule_time_event:
3875 /* Schedule the time events */
3876 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
3877
3878 out_unlock:
3879 mutex_unlock(&mvm->mutex);
3880 IWL_DEBUG_MAC80211(mvm, "leave\n");
3881 return ret;
3882 }
3883
3884 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
3885 struct ieee80211_vif *vif)
3886 {
3887 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3888
3889 IWL_DEBUG_MAC80211(mvm, "enter\n");
3890
3891 mutex_lock(&mvm->mutex);
3892 iwl_mvm_stop_roc(mvm, vif);
3893 mutex_unlock(&mvm->mutex);
3894
3895 IWL_DEBUG_MAC80211(mvm, "leave\n");
3896 return 0;
3897 }
3898
3899 struct iwl_mvm_ftm_responder_iter_data {
3900 bool responder;
3901 struct ieee80211_chanctx_conf *ctx;
3902 };
3903
3904 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
3905 struct ieee80211_vif *vif)
3906 {
3907 struct iwl_mvm_ftm_responder_iter_data *data = _data;
3908
3909 if (rcu_access_pointer(vif->chanctx_conf) == data->ctx &&
3910 vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
3911 data->responder = true;
3912 }
3913
3914 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
3915 struct ieee80211_chanctx_conf *ctx)
3916 {
3917 struct iwl_mvm_ftm_responder_iter_data data = {
3918 .responder = false,
3919 .ctx = ctx,
3920 };
3921
3922 ieee80211_iterate_active_interfaces_atomic(mvm->hw,
3923 IEEE80211_IFACE_ITER_NORMAL,
3924 iwl_mvm_ftm_responder_chanctx_iter,
3925 &data);
3926 return data.responder;
3927 }
3928
3929 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3930 struct ieee80211_chanctx_conf *ctx)
3931 {
3932 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3933 struct iwl_mvm_phy_ctxt *phy_ctxt;
3934 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
3935 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
3936 int ret;
3937
3938 lockdep_assert_held(&mvm->mutex);
3939
3940 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
3941
3942 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3943 if (!phy_ctxt) {
3944 ret = -ENOSPC;
3945 goto out;
3946 }
3947
3948 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
3949 ctx->rx_chains_static,
3950 ctx->rx_chains_dynamic);
3951 if (ret) {
3952 IWL_ERR(mvm, "Failed to add PHY context\n");
3953 goto out;
3954 }
3955
3956 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
3957 *phy_ctxt_id = phy_ctxt->id;
3958 out:
3959 return ret;
3960 }
3961
3962 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3963 struct ieee80211_chanctx_conf *ctx)
3964 {
3965 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3966 int ret;
3967
3968 mutex_lock(&mvm->mutex);
3969 ret = __iwl_mvm_add_chanctx(mvm, ctx);
3970 mutex_unlock(&mvm->mutex);
3971
3972 return ret;
3973 }
3974
3975 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3976 struct ieee80211_chanctx_conf *ctx)
3977 {
3978 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3979 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3980
3981 lockdep_assert_held(&mvm->mutex);
3982
3983 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3984 }
3985
3986 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3987 struct ieee80211_chanctx_conf *ctx)
3988 {
3989 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3990
3991 mutex_lock(&mvm->mutex);
3992 __iwl_mvm_remove_chanctx(mvm, ctx);
3993 mutex_unlock(&mvm->mutex);
3994 }
3995
3996 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3997 struct ieee80211_chanctx_conf *ctx,
3998 u32 changed)
3999 {
4000 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4001 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4002 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4003 bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
4004 struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
4005
4006 if (WARN_ONCE((phy_ctxt->ref > 1) &&
4007 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
4008 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
4009 IEEE80211_CHANCTX_CHANGE_RADAR |
4010 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
4011 "Cannot change PHY. Ref=%d, changed=0x%X\n",
4012 phy_ctxt->ref, changed))
4013 return;
4014
4015 mutex_lock(&mvm->mutex);
4016
4017 /* we are only changing the min_width, may be a noop */
4018 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
4019 if (phy_ctxt->width == def->width)
4020 goto out_unlock;
4021
4022 /* we are just toggling between 20_NOHT and 20 */
4023 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
4024 def->width <= NL80211_CHAN_WIDTH_20)
4025 goto out_unlock;
4026 }
4027
4028 iwl_mvm_bt_coex_vif_change(mvm);
4029 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4030 ctx->rx_chains_static,
4031 ctx->rx_chains_dynamic);
4032
4033 out_unlock:
4034 mutex_unlock(&mvm->mutex);
4035 }
4036
4037 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
4038 struct ieee80211_vif *vif,
4039 struct ieee80211_chanctx_conf *ctx,
4040 bool switching_chanctx)
4041 {
4042 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4043 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4044 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4045 int ret;
4046
4047 lockdep_assert_held(&mvm->mutex);
4048
4049 mvmvif->phy_ctxt = phy_ctxt;
4050
4051 switch (vif->type) {
4052 case NL80211_IFTYPE_AP:
4053 /* only needed if we're switching chanctx (i.e. during CSA) */
4054 if (switching_chanctx) {
4055 mvmvif->ap_ibss_active = true;
4056 break;
4057 }
4058 /* fall through */
4059 case NL80211_IFTYPE_ADHOC:
4060 /*
4061 * The AP binding flow is handled as part of the start_ap flow
4062 * (in bss_info_changed), similarly for IBSS.
4063 */
4064 ret = 0;
4065 goto out;
4066 case NL80211_IFTYPE_STATION:
4067 mvmvif->csa_bcn_pending = false;
4068 break;
4069 case NL80211_IFTYPE_MONITOR:
4070 /* always disable PS when a monitor interface is active */
4071 mvmvif->ps_disabled = true;
4072 break;
4073 default:
4074 ret = -EINVAL;
4075 goto out;
4076 }
4077
4078 ret = iwl_mvm_binding_add_vif(mvm, vif);
4079 if (ret)
4080 goto out;
4081
4082 /*
4083 * Power state must be updated before quotas,
4084 * otherwise fw will complain.
4085 */
4086 iwl_mvm_power_update_mac(mvm);
4087
4088 /* Setting the quota at this stage is only required for monitor
4089 * interfaces. For the other types, the bss_info changed flow
4090 * will handle quota settings.
4091 */
4092 if (vif->type == NL80211_IFTYPE_MONITOR) {
4093 mvmvif->monitor_active = true;
4094 ret = iwl_mvm_update_quotas(mvm, false, NULL);
4095 if (ret)
4096 goto out_remove_binding;
4097
4098 ret = iwl_mvm_add_snif_sta(mvm, vif);
4099 if (ret)
4100 goto out_remove_binding;
4101
4102 }
4103
4104 /* Handle binding during CSA */
4105 if (vif->type == NL80211_IFTYPE_AP) {
4106 iwl_mvm_update_quotas(mvm, false, NULL);
4107 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4108 }
4109
4110 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
4111 mvmvif->csa_bcn_pending = true;
4112
4113 if (!fw_has_capa(&mvm->fw->ucode_capa,
4114 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4115 u32 duration = 3 * vif->bss_conf.beacon_int;
4116
4117 /* Protect the session to make sure we hear the first
4118 * beacon on the new channel.
4119 */
4120 iwl_mvm_protect_session(mvm, vif, duration, duration,
4121 vif->bss_conf.beacon_int / 2,
4122 true);
4123 }
4124
4125 iwl_mvm_update_quotas(mvm, false, NULL);
4126 }
4127
4128 goto out;
4129
4130 out_remove_binding:
4131 iwl_mvm_binding_remove_vif(mvm, vif);
4132 iwl_mvm_power_update_mac(mvm);
4133 out:
4134 if (ret)
4135 mvmvif->phy_ctxt = NULL;
4136 return ret;
4137 }
4138 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
4139 struct ieee80211_vif *vif,
4140 struct ieee80211_chanctx_conf *ctx)
4141 {
4142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4143 int ret;
4144
4145 mutex_lock(&mvm->mutex);
4146 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
4147 mutex_unlock(&mvm->mutex);
4148
4149 return ret;
4150 }
4151
4152 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
4153 struct ieee80211_vif *vif,
4154 struct ieee80211_chanctx_conf *ctx,
4155 bool switching_chanctx)
4156 {
4157 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4158 struct ieee80211_vif *disabled_vif = NULL;
4159
4160 lockdep_assert_held(&mvm->mutex);
4161
4162 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
4163
4164 switch (vif->type) {
4165 case NL80211_IFTYPE_ADHOC:
4166 goto out;
4167 case NL80211_IFTYPE_MONITOR:
4168 mvmvif->monitor_active = false;
4169 mvmvif->ps_disabled = false;
4170 iwl_mvm_rm_snif_sta(mvm, vif);
4171 break;
4172 case NL80211_IFTYPE_AP:
4173 /* This part is triggered only during CSA */
4174 if (!switching_chanctx || !mvmvif->ap_ibss_active)
4175 goto out;
4176
4177 mvmvif->csa_countdown = false;
4178
4179 /* Set CS bit on all the stations */
4180 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
4181
4182 /* Save blocked iface, the timeout is set on the next beacon */
4183 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
4184
4185 mvmvif->ap_ibss_active = false;
4186 break;
4187 case NL80211_IFTYPE_STATION:
4188 if (!switching_chanctx)
4189 break;
4190
4191 disabled_vif = vif;
4192
4193 if (!fw_has_capa(&mvm->fw->ucode_capa,
4194 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
4195 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
4196 break;
4197 default:
4198 break;
4199 }
4200
4201 iwl_mvm_update_quotas(mvm, false, disabled_vif);
4202 iwl_mvm_binding_remove_vif(mvm, vif);
4203
4204 out:
4205 mvmvif->phy_ctxt = NULL;
4206 iwl_mvm_power_update_mac(mvm);
4207 }
4208
4209 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
4210 struct ieee80211_vif *vif,
4211 struct ieee80211_chanctx_conf *ctx)
4212 {
4213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4214
4215 mutex_lock(&mvm->mutex);
4216 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
4217 mutex_unlock(&mvm->mutex);
4218 }
4219
4220 static int
4221 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
4222 struct ieee80211_vif_chanctx_switch *vifs)
4223 {
4224 int ret;
4225
4226 mutex_lock(&mvm->mutex);
4227 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4228 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
4229
4230 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
4231 if (ret) {
4232 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
4233 goto out_reassign;
4234 }
4235
4236 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4237 true);
4238 if (ret) {
4239 IWL_ERR(mvm,
4240 "failed to assign new_ctx during channel switch\n");
4241 goto out_remove;
4242 }
4243
4244 /* we don't support TDLS during DCM - can be caused by channel switch */
4245 if (iwl_mvm_phy_ctx_count(mvm) > 1)
4246 iwl_mvm_teardown_tdls_peers(mvm);
4247
4248 goto out;
4249
4250 out_remove:
4251 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
4252
4253 out_reassign:
4254 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
4255 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
4256 goto out_restart;
4257 }
4258
4259 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4260 true)) {
4261 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4262 goto out_restart;
4263 }
4264
4265 goto out;
4266
4267 out_restart:
4268 /* things keep failing, better restart the hw */
4269 iwl_mvm_nic_restart(mvm, false);
4270
4271 out:
4272 mutex_unlock(&mvm->mutex);
4273
4274 return ret;
4275 }
4276
4277 static int
4278 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
4279 struct ieee80211_vif_chanctx_switch *vifs)
4280 {
4281 int ret;
4282
4283 mutex_lock(&mvm->mutex);
4284 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4285
4286 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4287 true);
4288 if (ret) {
4289 IWL_ERR(mvm,
4290 "failed to assign new_ctx during channel switch\n");
4291 goto out_reassign;
4292 }
4293
4294 goto out;
4295
4296 out_reassign:
4297 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4298 true)) {
4299 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4300 goto out_restart;
4301 }
4302
4303 goto out;
4304
4305 out_restart:
4306 /* things keep failing, better restart the hw */
4307 iwl_mvm_nic_restart(mvm, false);
4308
4309 out:
4310 mutex_unlock(&mvm->mutex);
4311
4312 return ret;
4313 }
4314
4315 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
4316 struct ieee80211_vif_chanctx_switch *vifs,
4317 int n_vifs,
4318 enum ieee80211_chanctx_switch_mode mode)
4319 {
4320 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4321 int ret;
4322
4323 /* we only support a single-vif right now */
4324 if (n_vifs > 1)
4325 return -EOPNOTSUPP;
4326
4327 switch (mode) {
4328 case CHANCTX_SWMODE_SWAP_CONTEXTS:
4329 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
4330 break;
4331 case CHANCTX_SWMODE_REASSIGN_VIF:
4332 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
4333 break;
4334 default:
4335 ret = -EOPNOTSUPP;
4336 break;
4337 }
4338
4339 return ret;
4340 }
4341
4342 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
4343 {
4344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4345
4346 return mvm->ibss_manager;
4347 }
4348
4349 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
4350 struct ieee80211_sta *sta,
4351 bool set)
4352 {
4353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4354 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4355
4356 if (!mvm_sta || !mvm_sta->vif) {
4357 IWL_ERR(mvm, "Station is not associated to a vif\n");
4358 return -EINVAL;
4359 }
4360
4361 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
4362 }
4363
4364 #ifdef CONFIG_NL80211_TESTMODE
4365 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
4366 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
4367 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
4368 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
4369 };
4370
4371 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
4372 struct ieee80211_vif *vif,
4373 void *data, int len)
4374 {
4375 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
4376 int err;
4377 u32 noa_duration;
4378
4379 err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
4380 iwl_mvm_tm_policy, NULL);
4381 if (err)
4382 return err;
4383
4384 if (!tb[IWL_MVM_TM_ATTR_CMD])
4385 return -EINVAL;
4386
4387 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
4388 case IWL_MVM_TM_CMD_SET_NOA:
4389 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
4390 !vif->bss_conf.enable_beacon ||
4391 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
4392 return -EINVAL;
4393
4394 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
4395 if (noa_duration >= vif->bss_conf.beacon_int)
4396 return -EINVAL;
4397
4398 mvm->noa_duration = noa_duration;
4399 mvm->noa_vif = vif;
4400
4401 return iwl_mvm_update_quotas(mvm, true, NULL);
4402 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
4403 /* must be associated client vif - ignore authorized */
4404 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
4405 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
4406 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
4407 return -EINVAL;
4408
4409 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
4410 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
4411 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4412 }
4413
4414 return -EOPNOTSUPP;
4415 }
4416
4417 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
4418 struct ieee80211_vif *vif,
4419 void *data, int len)
4420 {
4421 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4422 int err;
4423
4424 mutex_lock(&mvm->mutex);
4425 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
4426 mutex_unlock(&mvm->mutex);
4427
4428 return err;
4429 }
4430 #endif
4431
4432 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
4433 struct ieee80211_vif *vif,
4434 struct ieee80211_channel_switch *chsw)
4435 {
4436 /* By implementing this operation, we prevent mac80211 from
4437 * starting its own channel switch timer, so that we can call
4438 * ieee80211_chswitch_done() ourselves at the right time
4439 * (which is when the absence time event starts).
4440 */
4441
4442 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
4443 "dummy channel switch op\n");
4444 }
4445
4446 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
4447 struct ieee80211_vif *vif,
4448 struct ieee80211_channel_switch *chsw)
4449 {
4450 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4451 struct iwl_chan_switch_te_cmd cmd = {
4452 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
4453 mvmvif->color)),
4454 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4455 .tsf = cpu_to_le32(chsw->timestamp),
4456 .cs_count = chsw->count,
4457 .cs_mode = chsw->block_tx,
4458 };
4459
4460 lockdep_assert_held(&mvm->mutex);
4461
4462 if (chsw->delay)
4463 cmd.cs_delayed_bcn_count =
4464 DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
4465
4466 return iwl_mvm_send_cmd_pdu(mvm,
4467 WIDE_ID(MAC_CONF_GROUP,
4468 CHANNEL_SWITCH_TIME_EVENT_CMD),
4469 0, sizeof(cmd), &cmd);
4470 }
4471
4472 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
4473 struct ieee80211_vif *vif,
4474 struct ieee80211_channel_switch *chsw)
4475 {
4476 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4477 u32 apply_time;
4478
4479 /* Schedule the time event to a bit before beacon 1,
4480 * to make sure we're in the new channel when the
4481 * GO/AP arrives. In case count <= 1 immediately schedule the
4482 * TE (this might result with some packet loss or connection
4483 * loss).
4484 */
4485 if (chsw->count <= 1)
4486 apply_time = 0;
4487 else
4488 apply_time = chsw->device_timestamp +
4489 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
4490 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
4491
4492 if (chsw->block_tx)
4493 iwl_mvm_csa_client_absent(mvm, vif);
4494
4495 if (mvmvif->bf_data.bf_enabled) {
4496 int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4497
4498 if (ret)
4499 return ret;
4500 }
4501
4502 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
4503 apply_time);
4504
4505 return 0;
4506 }
4507
4508 #define IWL_MAX_CSA_BLOCK_TX 1500
4509 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
4510 struct ieee80211_vif *vif,
4511 struct ieee80211_channel_switch *chsw)
4512 {
4513 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4514 struct ieee80211_vif *csa_vif;
4515 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4516 int ret;
4517
4518 mutex_lock(&mvm->mutex);
4519
4520 mvmvif->csa_failed = false;
4521
4522 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
4523 chsw->chandef.center_freq1);
4524
4525 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
4526 ieee80211_vif_to_wdev(vif),
4527 FW_DBG_TRIGGER_CHANNEL_SWITCH);
4528
4529 switch (vif->type) {
4530 case NL80211_IFTYPE_AP:
4531 csa_vif =
4532 rcu_dereference_protected(mvm->csa_vif,
4533 lockdep_is_held(&mvm->mutex));
4534 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
4535 "Another CSA is already in progress")) {
4536 ret = -EBUSY;
4537 goto out_unlock;
4538 }
4539
4540 /* we still didn't unblock tx. prevent new CS meanwhile */
4541 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
4542 lockdep_is_held(&mvm->mutex))) {
4543 ret = -EBUSY;
4544 goto out_unlock;
4545 }
4546
4547 rcu_assign_pointer(mvm->csa_vif, vif);
4548
4549 if (WARN_ONCE(mvmvif->csa_countdown,
4550 "Previous CSA countdown didn't complete")) {
4551 ret = -EBUSY;
4552 goto out_unlock;
4553 }
4554
4555 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
4556
4557 break;
4558 case NL80211_IFTYPE_STATION:
4559 if (chsw->block_tx) {
4560 /*
4561 * In case of undetermined / long time with immediate
4562 * quiet monitor status to gracefully disconnect
4563 */
4564 if (!chsw->count ||
4565 chsw->count * vif->bss_conf.beacon_int >
4566 IWL_MAX_CSA_BLOCK_TX)
4567 schedule_delayed_work(&mvmvif->csa_work,
4568 msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
4569 }
4570
4571 if (!fw_has_capa(&mvm->fw->ucode_capa,
4572 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4573 ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
4574 if (ret)
4575 goto out_unlock;
4576 } else {
4577 iwl_mvm_schedule_client_csa(mvm, vif, chsw);
4578 }
4579
4580 mvmvif->csa_count = chsw->count;
4581 mvmvif->csa_misbehave = false;
4582 break;
4583 default:
4584 break;
4585 }
4586
4587 mvmvif->ps_disabled = true;
4588
4589 ret = iwl_mvm_power_update_ps(mvm);
4590 if (ret)
4591 goto out_unlock;
4592
4593 /* we won't be on this channel any longer */
4594 iwl_mvm_teardown_tdls_peers(mvm);
4595
4596 out_unlock:
4597 mutex_unlock(&mvm->mutex);
4598
4599 return ret;
4600 }
4601
4602 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
4603 struct ieee80211_vif *vif,
4604 struct ieee80211_channel_switch *chsw)
4605 {
4606 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4607 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4608 struct iwl_chan_switch_te_cmd cmd = {
4609 .mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
4610 mvmvif->color)),
4611 .action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
4612 .tsf = cpu_to_le32(chsw->timestamp),
4613 .cs_count = chsw->count,
4614 .cs_mode = chsw->block_tx,
4615 };
4616
4617 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
4618 return;
4619
4620 if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
4621 if (mvmvif->csa_misbehave) {
4622 /* Second time, give up on this AP*/
4623 iwl_mvm_abort_channel_switch(hw, vif);
4624 ieee80211_chswitch_done(vif, false);
4625 mvmvif->csa_misbehave = false;
4626 return;
4627 }
4628 mvmvif->csa_misbehave = true;
4629 }
4630 mvmvif->csa_count = chsw->count;
4631
4632 IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d\n", mvmvif->id);
4633
4634 WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
4635 WIDE_ID(MAC_CONF_GROUP,
4636 CHANNEL_SWITCH_TIME_EVENT_CMD),
4637 CMD_ASYNC, sizeof(cmd), &cmd));
4638 }
4639
4640 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4641 {
4642 int i;
4643
4644 if (!iwl_mvm_has_new_tx_api(mvm)) {
4645 if (drop) {
4646 mutex_lock(&mvm->mutex);
4647 iwl_mvm_flush_tx_path(mvm,
4648 iwl_mvm_flushable_queues(mvm) & queues, 0);
4649 mutex_unlock(&mvm->mutex);
4650 } else {
4651 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
4652 }
4653 return;
4654 }
4655
4656 mutex_lock(&mvm->mutex);
4657 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4658 struct ieee80211_sta *sta;
4659
4660 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4661 lockdep_is_held(&mvm->mutex));
4662 if (IS_ERR_OR_NULL(sta))
4663 continue;
4664
4665 if (drop)
4666 iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF, 0);
4667 else
4668 iwl_mvm_wait_sta_queues_empty(mvm,
4669 iwl_mvm_sta_from_mac80211(sta));
4670 }
4671 mutex_unlock(&mvm->mutex);
4672 }
4673
4674 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4675 struct ieee80211_vif *vif, u32 queues, bool drop)
4676 {
4677 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4678 struct iwl_mvm_vif *mvmvif;
4679 struct iwl_mvm_sta *mvmsta;
4680 struct ieee80211_sta *sta;
4681 int i;
4682 u32 msk = 0;
4683
4684 if (!vif) {
4685 iwl_mvm_flush_no_vif(mvm, queues, drop);
4686 return;
4687 }
4688
4689 if (vif->type != NL80211_IFTYPE_STATION)
4690 return;
4691
4692 /* Make sure we're done with the deferred traffic before flushing */
4693 flush_work(&mvm->add_stream_wk);
4694
4695 mutex_lock(&mvm->mutex);
4696 mvmvif = iwl_mvm_vif_from_mac80211(vif);
4697
4698 /* flush the AP-station and all TDLS peers */
4699 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4700 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4701 lockdep_is_held(&mvm->mutex));
4702 if (IS_ERR_OR_NULL(sta))
4703 continue;
4704
4705 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4706 if (mvmsta->vif != vif)
4707 continue;
4708
4709 /* make sure only TDLS peers or the AP are flushed */
4710 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4711
4712 if (drop) {
4713 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4714 IWL_ERR(mvm, "flush request fail\n");
4715 } else {
4716 msk |= mvmsta->tfd_queue_msk;
4717 if (iwl_mvm_has_new_tx_api(mvm))
4718 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
4719 }
4720 }
4721
4722 mutex_unlock(&mvm->mutex);
4723
4724 /* this can take a while, and we may need/want other operations
4725 * to succeed while doing this, so do it without the mutex held
4726 */
4727 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
4728 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
4729 }
4730
4731 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4732 struct survey_info *survey)
4733 {
4734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4735 int ret;
4736
4737 memset(survey, 0, sizeof(*survey));
4738
4739 /* only support global statistics right now */
4740 if (idx != 0)
4741 return -ENOENT;
4742
4743 if (!fw_has_capa(&mvm->fw->ucode_capa,
4744 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4745 return -ENOENT;
4746
4747 mutex_lock(&mvm->mutex);
4748
4749 if (iwl_mvm_firmware_running(mvm)) {
4750 ret = iwl_mvm_request_statistics(mvm, false);
4751 if (ret)
4752 goto out;
4753 }
4754
4755 survey->filled = SURVEY_INFO_TIME |
4756 SURVEY_INFO_TIME_RX |
4757 SURVEY_INFO_TIME_TX |
4758 SURVEY_INFO_TIME_SCAN;
4759 survey->time = mvm->accu_radio_stats.on_time_rf +
4760 mvm->radio_stats.on_time_rf;
4761 do_div(survey->time, USEC_PER_MSEC);
4762
4763 survey->time_rx = mvm->accu_radio_stats.rx_time +
4764 mvm->radio_stats.rx_time;
4765 do_div(survey->time_rx, USEC_PER_MSEC);
4766
4767 survey->time_tx = mvm->accu_radio_stats.tx_time +
4768 mvm->radio_stats.tx_time;
4769 do_div(survey->time_tx, USEC_PER_MSEC);
4770
4771 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4772 mvm->radio_stats.on_time_scan;
4773 do_div(survey->time_scan, USEC_PER_MSEC);
4774
4775 ret = 0;
4776 out:
4777 mutex_unlock(&mvm->mutex);
4778 return ret;
4779 }
4780
4781 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
4782 {
4783 switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
4784 case RATE_MCS_CHAN_WIDTH_20:
4785 rinfo->bw = RATE_INFO_BW_20;
4786 break;
4787 case RATE_MCS_CHAN_WIDTH_40:
4788 rinfo->bw = RATE_INFO_BW_40;
4789 break;
4790 case RATE_MCS_CHAN_WIDTH_80:
4791 rinfo->bw = RATE_INFO_BW_80;
4792 break;
4793 case RATE_MCS_CHAN_WIDTH_160:
4794 rinfo->bw = RATE_INFO_BW_160;
4795 break;
4796 }
4797
4798 if (rate_n_flags & RATE_MCS_HT_MSK) {
4799 rinfo->flags |= RATE_INFO_FLAGS_MCS;
4800 rinfo->mcs = u32_get_bits(rate_n_flags, RATE_HT_MCS_INDEX_MSK);
4801 rinfo->nss = u32_get_bits(rate_n_flags,
4802 RATE_HT_MCS_NSS_MSK) + 1;
4803 if (rate_n_flags & RATE_MCS_SGI_MSK)
4804 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
4805 } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
4806 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
4807 rinfo->mcs = u32_get_bits(rate_n_flags,
4808 RATE_VHT_MCS_RATE_CODE_MSK);
4809 rinfo->nss = u32_get_bits(rate_n_flags,
4810 RATE_VHT_MCS_NSS_MSK) + 1;
4811 if (rate_n_flags & RATE_MCS_SGI_MSK)
4812 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
4813 } else if (rate_n_flags & RATE_MCS_HE_MSK) {
4814 u32 gi_ltf = u32_get_bits(rate_n_flags,
4815 RATE_MCS_HE_GI_LTF_MSK);
4816
4817 rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
4818 rinfo->mcs = u32_get_bits(rate_n_flags,
4819 RATE_VHT_MCS_RATE_CODE_MSK);
4820 rinfo->nss = u32_get_bits(rate_n_flags,
4821 RATE_VHT_MCS_NSS_MSK) + 1;
4822
4823 if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
4824 rinfo->bw = RATE_INFO_BW_HE_RU;
4825 rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
4826 }
4827
4828 switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
4829 case RATE_MCS_HE_TYPE_SU:
4830 case RATE_MCS_HE_TYPE_EXT_SU:
4831 if (gi_ltf == 0 || gi_ltf == 1)
4832 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
4833 else if (gi_ltf == 2)
4834 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
4835 else if (rate_n_flags & RATE_MCS_SGI_MSK)
4836 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
4837 else
4838 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
4839 break;
4840 case RATE_MCS_HE_TYPE_MU:
4841 if (gi_ltf == 0 || gi_ltf == 1)
4842 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
4843 else if (gi_ltf == 2)
4844 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
4845 else
4846 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
4847 break;
4848 case RATE_MCS_HE_TYPE_TRIG:
4849 if (gi_ltf == 0 || gi_ltf == 1)
4850 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
4851 else
4852 rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
4853 break;
4854 }
4855
4856 if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
4857 rinfo->he_dcm = 1;
4858 } else {
4859 switch (u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK)) {
4860 case IWL_RATE_1M_PLCP:
4861 rinfo->legacy = 10;
4862 break;
4863 case IWL_RATE_2M_PLCP:
4864 rinfo->legacy = 20;
4865 break;
4866 case IWL_RATE_5M_PLCP:
4867 rinfo->legacy = 55;
4868 break;
4869 case IWL_RATE_11M_PLCP:
4870 rinfo->legacy = 110;
4871 break;
4872 case IWL_RATE_6M_PLCP:
4873 rinfo->legacy = 60;
4874 break;
4875 case IWL_RATE_9M_PLCP:
4876 rinfo->legacy = 90;
4877 break;
4878 case IWL_RATE_12M_PLCP:
4879 rinfo->legacy = 120;
4880 break;
4881 case IWL_RATE_18M_PLCP:
4882 rinfo->legacy = 180;
4883 break;
4884 case IWL_RATE_24M_PLCP:
4885 rinfo->legacy = 240;
4886 break;
4887 case IWL_RATE_36M_PLCP:
4888 rinfo->legacy = 360;
4889 break;
4890 case IWL_RATE_48M_PLCP:
4891 rinfo->legacy = 480;
4892 break;
4893 case IWL_RATE_54M_PLCP:
4894 rinfo->legacy = 540;
4895 break;
4896 }
4897 }
4898 }
4899
4900 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4901 struct ieee80211_vif *vif,
4902 struct ieee80211_sta *sta,
4903 struct station_info *sinfo)
4904 {
4905 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4907 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4908
4909 if (mvmsta->avg_energy) {
4910 sinfo->signal_avg = mvmsta->avg_energy;
4911 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
4912 }
4913
4914 if (iwl_mvm_has_tlc_offload(mvm)) {
4915 struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
4916
4917 iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
4918 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
4919 }
4920
4921 /* if beacon filtering isn't on mac80211 does it anyway */
4922 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4923 return;
4924
4925 if (!vif->bss_conf.assoc)
4926 return;
4927
4928 mutex_lock(&mvm->mutex);
4929
4930 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4931 goto unlock;
4932
4933 if (iwl_mvm_request_statistics(mvm, false))
4934 goto unlock;
4935
4936 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4937 mvmvif->beacon_stats.accu_num_beacons;
4938 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
4939 if (mvmvif->beacon_stats.avg_signal) {
4940 /* firmware only reports a value after RXing a few beacons */
4941 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4942 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4943 }
4944 unlock:
4945 mutex_unlock(&mvm->mutex);
4946 }
4947
4948 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4949 struct ieee80211_vif *vif,
4950 const struct ieee80211_event *event)
4951 {
4952 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4953 do { \
4954 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4955 break; \
4956 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
4957 } while (0)
4958
4959 struct iwl_fw_dbg_trigger_tlv *trig;
4960 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
4961
4962 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
4963 FW_DBG_TRIGGER_MLME);
4964 if (!trig)
4965 return;
4966
4967 trig_mlme = (void *)trig->data;
4968
4969 if (event->u.mlme.data == ASSOC_EVENT) {
4970 if (event->u.mlme.status == MLME_DENIED)
4971 CHECK_MLME_TRIGGER(stop_assoc_denied,
4972 "DENIED ASSOC: reason %d",
4973 event->u.mlme.reason);
4974 else if (event->u.mlme.status == MLME_TIMEOUT)
4975 CHECK_MLME_TRIGGER(stop_assoc_timeout,
4976 "ASSOC TIMEOUT");
4977 } else if (event->u.mlme.data == AUTH_EVENT) {
4978 if (event->u.mlme.status == MLME_DENIED)
4979 CHECK_MLME_TRIGGER(stop_auth_denied,
4980 "DENIED AUTH: reason %d",
4981 event->u.mlme.reason);
4982 else if (event->u.mlme.status == MLME_TIMEOUT)
4983 CHECK_MLME_TRIGGER(stop_auth_timeout,
4984 "AUTH TIMEOUT");
4985 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4986 CHECK_MLME_TRIGGER(stop_rx_deauth,
4987 "DEAUTH RX %d", event->u.mlme.reason);
4988 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4989 CHECK_MLME_TRIGGER(stop_tx_deauth,
4990 "DEAUTH TX %d", event->u.mlme.reason);
4991 }
4992 #undef CHECK_MLME_TRIGGER
4993 }
4994
4995 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4996 struct ieee80211_vif *vif,
4997 const struct ieee80211_event *event)
4998 {
4999 struct iwl_fw_dbg_trigger_tlv *trig;
5000 struct iwl_fw_dbg_trigger_ba *ba_trig;
5001
5002 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
5003 FW_DBG_TRIGGER_BA);
5004 if (!trig)
5005 return;
5006
5007 ba_trig = (void *)trig->data;
5008
5009 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
5010 return;
5011
5012 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
5013 "BAR received from %pM, tid %d, ssn %d",
5014 event->u.ba.sta->addr, event->u.ba.tid,
5015 event->u.ba.ssn);
5016 }
5017
5018 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
5019 struct ieee80211_vif *vif,
5020 const struct ieee80211_event *event)
5021 {
5022 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5023
5024 switch (event->type) {
5025 case MLME_EVENT:
5026 iwl_mvm_event_mlme_callback(mvm, vif, event);
5027 break;
5028 case BAR_RX_EVENT:
5029 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
5030 break;
5031 case BA_FRAME_TIMEOUT:
5032 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
5033 event->u.ba.tid);
5034 break;
5035 default:
5036 break;
5037 }
5038 }
5039
5040 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
5041 struct iwl_mvm_internal_rxq_notif *notif,
5042 u32 size)
5043 {
5044 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
5045 int ret;
5046
5047
5048 if (!iwl_mvm_has_new_rx_api(mvm))
5049 return;
5050
5051 if (notif->sync) {
5052 notif->cookie = mvm->queue_sync_cookie;
5053 atomic_set(&mvm->queue_sync_counter,
5054 mvm->trans->num_rx_queues);
5055 }
5056
5057 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif,
5058 size, !notif->sync);
5059 if (ret) {
5060 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
5061 goto out;
5062 }
5063
5064 if (notif->sync) {
5065 lockdep_assert_held(&mvm->mutex);
5066 ret = wait_event_timeout(mvm->rx_sync_waitq,
5067 atomic_read(&mvm->queue_sync_counter) == 0 ||
5068 iwl_mvm_is_radio_killed(mvm),
5069 HZ);
5070 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
5071 }
5072
5073 out:
5074 atomic_set(&mvm->queue_sync_counter, 0);
5075 if (notif->sync)
5076 mvm->queue_sync_cookie++;
5077 }
5078
5079 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
5080 {
5081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5082 struct iwl_mvm_internal_rxq_notif data = {
5083 .type = IWL_MVM_RXQ_EMPTY,
5084 .sync = 1,
5085 };
5086
5087 mutex_lock(&mvm->mutex);
5088 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
5089 mutex_unlock(&mvm->mutex);
5090 }
5091
5092 static int
5093 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
5094 struct ieee80211_vif *vif,
5095 struct cfg80211_ftm_responder_stats *stats)
5096 {
5097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5098 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5099
5100 if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
5101 !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
5102 return -EINVAL;
5103
5104 mutex_lock(&mvm->mutex);
5105 *stats = mvm->ftm_resp_stats;
5106 mutex_unlock(&mvm->mutex);
5107
5108 stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
5109 BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
5110 BIT(NL80211_FTM_STATS_FAILED_NUM) |
5111 BIT(NL80211_FTM_STATS_ASAP_NUM) |
5112 BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
5113 BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
5114 BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
5115 BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
5116 BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
5117
5118 return 0;
5119 }
5120
5121 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw,
5122 struct ieee80211_vif *vif,
5123 struct cfg80211_pmsr_request *request)
5124 {
5125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5126 int ret;
5127
5128 mutex_lock(&mvm->mutex);
5129 ret = iwl_mvm_ftm_start(mvm, vif, request);
5130 mutex_unlock(&mvm->mutex);
5131
5132 return ret;
5133 }
5134
5135 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw,
5136 struct ieee80211_vif *vif,
5137 struct cfg80211_pmsr_request *request)
5138 {
5139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5140
5141 mutex_lock(&mvm->mutex);
5142 iwl_mvm_ftm_abort(mvm, request);
5143 mutex_unlock(&mvm->mutex);
5144 }
5145
5146 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
5147 {
5148 u8 protocol = ip_hdr(skb)->protocol;
5149
5150 if (!IS_ENABLED(CONFIG_INET))
5151 return false;
5152
5153 return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
5154 }
5155
5156 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
5157 struct sk_buff *head,
5158 struct sk_buff *skb)
5159 {
5160 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5161
5162 /* For now don't aggregate IPv6 in AMSDU */
5163 if (skb->protocol != htons(ETH_P_IP))
5164 return false;
5165
5166 if (!iwl_mvm_is_csum_supported(mvm))
5167 return true;
5168
5169 return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
5170 }
5171
5172 const struct ieee80211_ops iwl_mvm_hw_ops = {
5173 .tx = iwl_mvm_mac_tx,
5174 .wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
5175 .ampdu_action = iwl_mvm_mac_ampdu_action,
5176 .get_antenna = iwl_mvm_op_get_antenna,
5177 .start = iwl_mvm_mac_start,
5178 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
5179 .stop = iwl_mvm_mac_stop,
5180 .add_interface = iwl_mvm_mac_add_interface,
5181 .remove_interface = iwl_mvm_mac_remove_interface,
5182 .config = iwl_mvm_mac_config,
5183 .prepare_multicast = iwl_mvm_prepare_multicast,
5184 .configure_filter = iwl_mvm_configure_filter,
5185 .config_iface_filter = iwl_mvm_config_iface_filter,
5186 .bss_info_changed = iwl_mvm_bss_info_changed,
5187 .hw_scan = iwl_mvm_mac_hw_scan,
5188 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
5189 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
5190 .sta_state = iwl_mvm_mac_sta_state,
5191 .sta_notify = iwl_mvm_mac_sta_notify,
5192 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
5193 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
5194 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
5195 .sta_rc_update = iwl_mvm_sta_rc_update,
5196 .conf_tx = iwl_mvm_mac_conf_tx,
5197 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
5198 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
5199 .flush = iwl_mvm_mac_flush,
5200 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
5201 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
5202 .set_key = iwl_mvm_mac_set_key,
5203 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
5204 .remain_on_channel = iwl_mvm_roc,
5205 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
5206 .add_chanctx = iwl_mvm_add_chanctx,
5207 .remove_chanctx = iwl_mvm_remove_chanctx,
5208 .change_chanctx = iwl_mvm_change_chanctx,
5209 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
5210 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
5211 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
5212
5213 .start_ap = iwl_mvm_start_ap_ibss,
5214 .stop_ap = iwl_mvm_stop_ap_ibss,
5215 .join_ibss = iwl_mvm_start_ap_ibss,
5216 .leave_ibss = iwl_mvm_stop_ap_ibss,
5217
5218 .tx_last_beacon = iwl_mvm_tx_last_beacon,
5219
5220 .set_tim = iwl_mvm_set_tim,
5221
5222 .channel_switch = iwl_mvm_channel_switch,
5223 .pre_channel_switch = iwl_mvm_pre_channel_switch,
5224 .post_channel_switch = iwl_mvm_post_channel_switch,
5225 .abort_channel_switch = iwl_mvm_abort_channel_switch,
5226 .channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
5227
5228 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
5229 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
5230 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
5231
5232 .event_callback = iwl_mvm_mac_event_callback,
5233
5234 .sync_rx_queues = iwl_mvm_sync_rx_queues,
5235
5236 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
5237
5238 #ifdef CONFIG_PM_SLEEP
5239 /* look at d3.c */
5240 .suspend = iwl_mvm_suspend,
5241 .resume = iwl_mvm_resume,
5242 .set_wakeup = iwl_mvm_set_wakeup,
5243 .set_rekey_data = iwl_mvm_set_rekey_data,
5244 #if IS_ENABLED(CONFIG_IPV6)
5245 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
5246 #endif
5247 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
5248 #endif
5249 .get_survey = iwl_mvm_mac_get_survey,
5250 .sta_statistics = iwl_mvm_mac_sta_statistics,
5251 .get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
5252 .start_pmsr = iwl_mvm_start_pmsr,
5253 .abort_pmsr = iwl_mvm_abort_pmsr,
5254
5255 .can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
5256 #ifdef CONFIG_IWLWIFI_DEBUGFS
5257 .sta_add_debugfs = iwl_mvm_sta_add_debugfs,
5258 #endif
5259 };
Linux with added FPC-III support