1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 Intel Deutschland GmbH
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.
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.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
37 * All rights reserved.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *****************************************************************************/
66 #include <linux/kernel.h>
67 #include <linux/slab.h>
68 #include <linux/skbuff.h>
69 #include <linux/netdevice.h>
70 #include <linux/etherdevice.h>
72 #include <linux/if_arp.h>
73 #include <linux/time.h>
74 #include <net/mac80211.h>
75 #include <net/ieee80211_radiotap.h>
78 #include "iwl-op-mode.h"
82 #include "time-event.h"
83 #include "iwl-eeprom-parse.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
88 #include "iwl-nvm-parse.h"
91 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
94 .types = BIT(NL80211_IFTYPE_STATION),
98 .types = BIT(NL80211_IFTYPE_AP) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT) |
100 BIT(NL80211_IFTYPE_P2P_GO),
104 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
108 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
110 .num_different_channels = 2,
112 .limits = iwl_mvm_limits,
113 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
117 #ifdef CONFIG_PM_SLEEP
118 static const struct nl80211_wowlan_tcp_data_token_feature
119 iwl_mvm_wowlan_tcp_token_feature = {
122 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
125 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
126 .tok = &iwl_mvm_wowlan_tcp_token_feature,
127 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .data_interval_max = 65535, /* __le16 in API */
132 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
133 sizeof(struct ethhdr) -
134 sizeof(struct iphdr) -
135 sizeof(struct tcphdr),
140 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
153 BC_FILTER_MAGIC_NONE = 0,
158 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
162 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
165 /* frame type - arp, hw type - ethernet */
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header),
169 .val = cpu_to_be32(0x08060001),
170 .mask = cpu_to_be32(0xffffffff),
175 BCAST_FILTER_OFFSET_PAYLOAD_START,
176 .offset = sizeof(rfc1042_header) + 2 +
177 sizeof(struct arphdr) +
178 ETH_ALEN + sizeof(__be32) +
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
187 /* dhcp offer bcast */
189 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = offsetof(struct udphdr, dest),
195 .val = cpu_to_be32(0x00440000),
196 .mask = cpu_to_be32(0xffff0000),
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type = BCAST_FILTER_OFFSET_IP_END,
202 .mask = cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
208 /* last filter must be empty */
213 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
215 if (!iwl_mvm_is_d0i3_supported(mvm))
218 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
219 spin_lock_bh(&mvm->refs_lock);
220 mvm->refs[ref_type]++;
221 spin_unlock_bh(&mvm->refs_lock);
222 iwl_trans_ref(mvm->trans);
225 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
227 if (!iwl_mvm_is_d0i3_supported(mvm))
230 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
231 spin_lock_bh(&mvm->refs_lock);
232 WARN_ON(!mvm->refs[ref_type]--);
233 spin_unlock_bh(&mvm->refs_lock);
234 iwl_trans_unref(mvm->trans);
237 static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
238 enum iwl_mvm_ref_type except_ref)
242 if (!iwl_mvm_is_d0i3_supported(mvm))
245 spin_lock_bh(&mvm->refs_lock);
246 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
247 if (except_ref == i || !mvm->refs[i])
250 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
252 for (j = 0; j < mvm->refs[i]; j++)
253 iwl_trans_unref(mvm->trans);
256 spin_unlock_bh(&mvm->refs_lock);
259 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
264 if (!iwl_mvm_is_d0i3_supported(mvm))
267 spin_lock_bh(&mvm->refs_lock);
268 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
274 spin_unlock_bh(&mvm->refs_lock);
279 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
281 iwl_mvm_ref(mvm, ref_type);
283 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
284 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
287 iwl_mvm_unref(mvm, ref_type);
294 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
298 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
299 for (i = 0; i < NUM_PHY_CTX; i++) {
300 mvm->phy_ctxts[i].id = i;
301 mvm->phy_ctxts[i].ref = 0;
305 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
307 enum iwl_mcc_source src_id,
310 struct ieee80211_regdomain *regd = NULL;
311 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
312 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
313 struct iwl_mcc_update_resp *resp;
315 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
317 lockdep_assert_held(&mvm->mutex);
319 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
320 if (IS_ERR_OR_NULL(resp)) {
321 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
322 PTR_ERR_OR_ZERO(resp));
327 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
329 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
330 __le32_to_cpu(resp->n_channels),
332 __le16_to_cpu(resp->mcc));
333 /* Store the return source id */
334 src_id = resp->source_id;
336 if (IS_ERR_OR_NULL(regd)) {
337 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
338 PTR_ERR_OR_ZERO(regd));
342 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
343 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
344 mvm->lar_regdom_set = true;
345 mvm->mcc_src = src_id;
351 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
354 struct ieee80211_regdomain *regd;
356 if (!iwl_mvm_is_lar_supported(mvm))
359 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
360 if (!IS_ERR_OR_NULL(regd)) {
361 /* only update the regulatory core if changed */
363 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
369 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
372 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
373 iwl_mvm_is_wifi_mcc_supported(mvm) ?
374 MCC_SOURCE_GET_CURRENT :
375 MCC_SOURCE_OLD_FW, changed);
378 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
380 enum iwl_mcc_source used_src;
381 struct ieee80211_regdomain *regd;
384 const struct ieee80211_regdomain *r =
385 rtnl_dereference(mvm->hw->wiphy->regd);
390 /* save the last source in case we overwrite it below */
391 used_src = mvm->mcc_src;
392 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
393 /* Notify the firmware we support wifi location updates */
394 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
395 if (!IS_ERR_OR_NULL(regd))
399 /* Now set our last stored MCC and source */
400 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
402 if (IS_ERR_OR_NULL(regd))
405 /* update cfg80211 if the regdomain was changed */
407 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
415 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
417 struct ieee80211_hw *hw = mvm->hw;
419 static const u32 mvm_ciphers[] = {
420 WLAN_CIPHER_SUITE_WEP40,
421 WLAN_CIPHER_SUITE_WEP104,
422 WLAN_CIPHER_SUITE_TKIP,
423 WLAN_CIPHER_SUITE_CCMP,
426 /* Tell mac80211 our characteristics */
427 ieee80211_hw_set(hw, SIGNAL_DBM);
428 ieee80211_hw_set(hw, SPECTRUM_MGMT);
429 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
430 ieee80211_hw_set(hw, QUEUE_CONTROL);
431 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
432 ieee80211_hw_set(hw, SUPPORTS_PS);
433 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
434 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
435 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
436 ieee80211_hw_set(hw, CONNECTION_MONITOR);
437 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
438 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
439 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
440 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
441 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
442 if (iwl_mvm_has_new_rx_api(mvm))
443 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
445 if (mvm->trans->num_rx_queues > 1)
446 ieee80211_hw_set(hw, USES_RSS);
448 if (mvm->trans->max_skb_frags)
449 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
451 hw->queues = mvm->first_agg_queue;
452 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
453 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
454 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
455 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
456 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
457 hw->rate_control_algorithm = "iwl-mvm-rs";
458 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
459 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
461 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
462 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
463 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
464 hw->wiphy->cipher_suites = mvm->ciphers;
467 * Enable 11w if advertised by firmware and software crypto
468 * is not enabled (as the firmware will interpret some mgmt
469 * packets, so enabling it with software crypto isn't safe)
471 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
472 !iwlwifi_mod_params.sw_crypto) {
473 ieee80211_hw_set(hw, MFP_CAPABLE);
474 mvm->ciphers[hw->wiphy->n_cipher_suites] =
475 WLAN_CIPHER_SUITE_AES_CMAC;
476 hw->wiphy->n_cipher_suites++;
479 /* currently FW API supports only one optional cipher scheme */
480 if (mvm->fw->cs[0].cipher) {
481 mvm->hw->n_cipher_schemes = 1;
482 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
483 mvm->ciphers[hw->wiphy->n_cipher_suites] =
484 mvm->fw->cs[0].cipher;
485 hw->wiphy->n_cipher_suites++;
488 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
489 hw->wiphy->features |=
490 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
491 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
492 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
494 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
495 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
496 hw->chanctx_data_size = sizeof(u16);
498 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
499 BIT(NL80211_IFTYPE_P2P_CLIENT) |
500 BIT(NL80211_IFTYPE_AP) |
501 BIT(NL80211_IFTYPE_P2P_GO) |
502 BIT(NL80211_IFTYPE_P2P_DEVICE) |
503 BIT(NL80211_IFTYPE_ADHOC);
505 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
506 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
507 if (iwl_mvm_is_lar_supported(mvm))
508 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
510 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
511 REGULATORY_DISABLE_BEACON_HINTS;
513 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
514 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
516 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
518 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
519 hw->wiphy->n_iface_combinations =
520 ARRAY_SIZE(iwl_mvm_iface_combinations);
522 hw->wiphy->max_remain_on_channel_duration = 10000;
523 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
524 /* we can compensate an offset of up to 3 channels = 15 MHz */
525 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
527 /* Extract MAC address */
528 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
529 hw->wiphy->addresses = mvm->addresses;
530 hw->wiphy->n_addresses = 1;
532 /* Extract additional MAC addresses if available */
533 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
534 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
536 for (i = 1; i < num_mac; i++) {
537 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
539 mvm->addresses[i].addr[5]++;
540 hw->wiphy->n_addresses++;
543 iwl_mvm_reset_phy_ctxts(mvm);
545 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
547 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
549 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
550 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
551 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
553 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
554 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
556 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
558 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
559 hw->wiphy->bands[NL80211_BAND_2GHZ] =
560 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
561 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
562 hw->wiphy->bands[NL80211_BAND_5GHZ] =
563 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
565 if (fw_has_capa(&mvm->fw->ucode_capa,
566 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
567 fw_has_api(&mvm->fw->ucode_capa,
568 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
569 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
570 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
573 hw->wiphy->hw_version = mvm->trans->hw_id;
575 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
576 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
578 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
580 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
581 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
582 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
583 /* we create the 802.11 header and zero length SSID IE. */
584 hw->wiphy->max_sched_scan_ie_len =
585 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
586 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
587 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
590 * the firmware uses u8 for num of iterations, but 0xff is saved for
591 * infinite loop, so the maximum number of iterations is actually 254.
593 hw->wiphy->max_sched_scan_plan_iterations = 254;
595 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
596 NL80211_FEATURE_LOW_PRIORITY_SCAN |
597 NL80211_FEATURE_P2P_GO_OPPPS |
598 NL80211_FEATURE_DYNAMIC_SMPS |
599 NL80211_FEATURE_STATIC_SMPS |
600 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
602 if (fw_has_capa(&mvm->fw->ucode_capa,
603 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
604 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
605 if (fw_has_capa(&mvm->fw->ucode_capa,
606 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
607 hw->wiphy->features |= NL80211_FEATURE_QUIET;
609 if (fw_has_capa(&mvm->fw->ucode_capa,
610 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
611 hw->wiphy->features |=
612 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
614 if (fw_has_capa(&mvm->fw->ucode_capa,
615 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
616 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
618 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
620 #ifdef CONFIG_PM_SLEEP
621 if (iwl_mvm_is_d0i3_supported(mvm) &&
622 device_can_wakeup(mvm->trans->dev)) {
623 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
624 hw->wiphy->wowlan = &mvm->wowlan;
627 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
628 mvm->trans->ops->d3_suspend &&
629 mvm->trans->ops->d3_resume &&
630 device_can_wakeup(mvm->trans->dev)) {
631 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
632 WIPHY_WOWLAN_DISCONNECT |
633 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
634 WIPHY_WOWLAN_RFKILL_RELEASE |
635 WIPHY_WOWLAN_NET_DETECT;
636 if (!iwlwifi_mod_params.sw_crypto)
637 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
638 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
639 WIPHY_WOWLAN_4WAY_HANDSHAKE;
641 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
642 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
643 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
644 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
645 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
646 hw->wiphy->wowlan = &mvm->wowlan;
650 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
651 /* assign default bcast filtering configuration */
652 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
655 ret = iwl_mvm_leds_init(mvm);
659 if (fw_has_capa(&mvm->fw->ucode_capa,
660 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
661 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
662 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
663 ieee80211_hw_set(hw, TDLS_WIDER_BW);
666 if (fw_has_capa(&mvm->fw->ucode_capa,
667 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
668 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
669 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
672 hw->netdev_features |= mvm->cfg->features;
673 if (!iwl_mvm_is_csum_supported(mvm)) {
674 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
676 /* We may support SW TX CSUM */
677 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
678 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
681 ret = ieee80211_register_hw(mvm->hw);
683 iwl_mvm_leds_exit(mvm);
688 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
689 struct ieee80211_sta *sta,
692 struct iwl_mvm_sta *mvmsta;
696 * double check the IN_D0I3 flag both before and after
697 * taking the spinlock, in order to prevent taking
698 * the spinlock when not needed.
700 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
703 spin_lock(&mvm->d0i3_tx_lock);
705 * testing the flag again ensures the skb dequeue
706 * loop (on d0i3 exit) hasn't run yet.
708 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
711 mvmsta = iwl_mvm_sta_from_mac80211(sta);
712 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
713 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
716 __skb_queue_tail(&mvm->d0i3_tx, skb);
717 ieee80211_stop_queues(mvm->hw);
720 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
721 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
725 spin_unlock(&mvm->d0i3_tx_lock);
729 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
730 struct ieee80211_tx_control *control,
733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
734 struct ieee80211_sta *sta = control->sta;
735 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
736 struct ieee80211_hdr *hdr = (void *)skb->data;
738 if (iwl_mvm_is_radio_killed(mvm)) {
739 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
743 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
744 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
745 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
748 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
749 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
750 ieee80211_is_mgmt(hdr->frame_control) &&
751 !ieee80211_is_deauth(hdr->frame_control) &&
752 !ieee80211_is_disassoc(hdr->frame_control) &&
753 !ieee80211_is_action(hdr->frame_control)))
757 if (iwl_mvm_defer_tx(mvm, sta, skb))
759 if (iwl_mvm_tx_skb(mvm, skb, sta))
764 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
768 ieee80211_free_txskb(hw, skb);
771 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
773 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
778 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
780 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
782 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
785 /* enabled by default */
789 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
791 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
793 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
797 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
798 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
799 enum ieee80211_ampdu_mlme_action action)
801 struct iwl_fw_dbg_trigger_tlv *trig;
802 struct iwl_fw_dbg_trigger_ba *ba_trig;
804 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
807 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
808 ba_trig = (void *)trig->data;
810 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
814 case IEEE80211_AMPDU_TX_OPERATIONAL: {
815 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
816 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
818 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
819 "TX AGG START: MAC %pM tid %d ssn %d\n",
820 sta->addr, tid, tid_data->ssn);
823 case IEEE80211_AMPDU_TX_STOP_CONT:
824 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
825 "TX AGG STOP: MAC %pM tid %d\n",
828 case IEEE80211_AMPDU_RX_START:
829 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
830 "RX AGG START: MAC %pM tid %d ssn %d\n",
831 sta->addr, tid, rx_ba_ssn);
833 case IEEE80211_AMPDU_RX_STOP:
834 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
835 "RX AGG STOP: MAC %pM tid %d\n",
843 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
844 struct ieee80211_vif *vif,
845 struct ieee80211_ampdu_params *params)
847 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
849 bool tx_agg_ref = false;
850 struct ieee80211_sta *sta = params->sta;
851 enum ieee80211_ampdu_mlme_action action = params->action;
852 u16 tid = params->tid;
853 u16 *ssn = ¶ms->ssn;
854 u8 buf_size = params->buf_size;
855 bool amsdu = params->amsdu;
856 u16 timeout = params->timeout;
858 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
859 sta->addr, tid, action);
861 if (!(mvm->nvm_data->sku_cap_11n_enable))
864 /* return from D0i3 before starting a new Tx aggregation */
866 case IEEE80211_AMPDU_TX_START:
867 case IEEE80211_AMPDU_TX_STOP_CONT:
868 case IEEE80211_AMPDU_TX_STOP_FLUSH:
869 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
870 case IEEE80211_AMPDU_TX_OPERATIONAL:
872 * for tx start, wait synchronously until D0i3 exit to
873 * get the correct sequence number for the tid.
874 * additionally, some other ampdu actions use direct
875 * target access, which is not handled automatically
876 * by the trans layer (unlike commands), so wait for
877 * d0i3 exit in these cases as well.
879 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
889 mutex_lock(&mvm->mutex);
892 case IEEE80211_AMPDU_RX_START:
893 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
897 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
900 case IEEE80211_AMPDU_RX_STOP:
901 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
904 case IEEE80211_AMPDU_TX_START:
905 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
909 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
911 case IEEE80211_AMPDU_TX_STOP_CONT:
912 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
914 case IEEE80211_AMPDU_TX_STOP_FLUSH:
915 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
916 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
918 case IEEE80211_AMPDU_TX_OPERATIONAL:
919 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
931 if (action == IEEE80211_AMPDU_RX_START)
934 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
937 mutex_unlock(&mvm->mutex);
940 * If the tid is marked as started, we won't use it for offloaded
941 * traffic on the next D0i3 entry. It's safe to unref.
944 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
949 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
950 struct ieee80211_vif *vif)
952 struct iwl_mvm *mvm = data;
953 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
955 mvmvif->uploaded = false;
956 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
958 spin_lock_bh(&mvm->time_event_lock);
959 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
960 spin_unlock_bh(&mvm->time_event_lock);
962 mvmvif->phy_ctxt = NULL;
963 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
966 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
968 /* clear the D3 reconfig, we only need it to avoid dumping a
969 * firmware coredump on reconfiguration, we shouldn't do that
970 * on D3->D0 transition
972 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
973 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
974 iwl_mvm_fw_error_dump(mvm);
977 /* cleanup all stale references (scan, roc), but keep the
978 * ucode_down ref until reconfig is complete
980 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
982 iwl_mvm_stop_device(mvm);
984 mvm->scan_status = 0;
985 mvm->ps_disabled = false;
986 mvm->calibrating = false;
988 /* just in case one was running */
989 iwl_mvm_cleanup_roc_te(mvm);
990 ieee80211_remain_on_channel_expired(mvm->hw);
993 * cleanup all interfaces, even inactive ones, as some might have
994 * gone down during the HW restart
996 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
998 mvm->p2p_device_vif = NULL;
999 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1001 iwl_mvm_reset_phy_ctxts(mvm);
1002 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1003 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
1004 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
1005 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
1006 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1007 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1008 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1009 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1010 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1011 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
1013 ieee80211_wake_queues(mvm->hw);
1015 /* clear any stale d0i3 state */
1016 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1019 mvm->rx_ba_sessions = 0;
1020 mvm->fw_dbg_conf = FW_DBG_INVALID;
1022 /* keep statistics ticking */
1023 iwl_mvm_accu_radio_stats(mvm);
1026 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1030 lockdep_assert_held(&mvm->mutex);
1032 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1033 /* Clean up some internal and mac80211 state on restart */
1034 iwl_mvm_restart_cleanup(mvm);
1036 /* Hold the reference to prevent runtime suspend while
1037 * the start procedure runs. It's a bit confusing
1038 * that the UCODE_DOWN reference is taken, but it just
1039 * means "UCODE is not UP yet". ( TODO: rename this
1042 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1044 ret = iwl_mvm_up(mvm);
1046 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1047 /* Something went wrong - we need to finish some cleanup
1048 * that normally iwl_mvm_mac_restart_complete() below
1051 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1052 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1058 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1063 /* Some hw restart cleanups must not hold the mutex */
1064 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1066 * Make sure we are out of d0i3. This is needed
1067 * to make sure the reference accounting is correct
1068 * (and there is no stale d0i3_exit_work).
1070 wait_event_timeout(mvm->d0i3_exit_waitq,
1071 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1076 mutex_lock(&mvm->mutex);
1077 ret = __iwl_mvm_mac_start(mvm);
1078 mutex_unlock(&mvm->mutex);
1083 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1087 mutex_lock(&mvm->mutex);
1089 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1090 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1091 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1093 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1096 /* allow transport/FW low power modes */
1097 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1100 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1101 * of packets the FW sent out, so we must reconnect.
1103 iwl_mvm_teardown_tdls_peers(mvm);
1105 mutex_unlock(&mvm->mutex);
1108 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1110 if (iwl_mvm_is_d0i3_supported(mvm) &&
1111 iwl_mvm_enter_d0i3_on_suspend(mvm))
1112 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1113 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1116 "D0i3 exit on resume timed out\n");
1120 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1121 enum ieee80211_reconfig_type reconfig_type)
1123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1125 switch (reconfig_type) {
1126 case IEEE80211_RECONFIG_TYPE_RESTART:
1127 iwl_mvm_restart_complete(mvm);
1129 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1130 iwl_mvm_resume_complete(mvm);
1135 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1137 lockdep_assert_held(&mvm->mutex);
1139 /* firmware counters are obviously reset now, but we shouldn't
1140 * partially track so also clear the fw_reset_accu counters.
1142 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1144 /* async_handlers_wk is now blocked */
1147 * The work item could be running or queued if the
1148 * ROC time event stops just as we get here.
1150 flush_work(&mvm->roc_done_wk);
1152 iwl_mvm_stop_device(mvm);
1154 iwl_mvm_async_handlers_purge(mvm);
1155 /* async_handlers_list is empty and will stay empty: HW is stopped */
1157 /* the fw is stopped, the aux sta is dead: clean up driver state */
1158 iwl_mvm_del_aux_sta(mvm);
1160 iwl_free_fw_paging(mvm);
1163 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1164 * won't be called in this case).
1165 * But make sure to cleanup interfaces that have gone down before/during
1166 * HW restart was requested.
1168 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1169 ieee80211_iterate_interfaces(mvm->hw, 0,
1170 iwl_mvm_cleanup_iterator, mvm);
1172 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1173 * make sure there's nothing left there and warn if any is found.
1175 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1178 for (i = 0; i < mvm->max_scans; i++) {
1179 if (WARN_ONCE(mvm->scan_uid_status[i],
1180 "UMAC scan UID %d status was not cleaned\n",
1182 mvm->scan_uid_status[i] = 0;
1187 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1191 flush_work(&mvm->d0i3_exit_work);
1192 flush_work(&mvm->async_handlers_wk);
1193 flush_work(&mvm->add_stream_wk);
1194 cancel_delayed_work_sync(&mvm->fw_dump_wk);
1195 iwl_mvm_free_fw_dump_desc(mvm);
1197 mutex_lock(&mvm->mutex);
1198 __iwl_mvm_mac_stop(mvm);
1199 mutex_unlock(&mvm->mutex);
1202 * The worker might have been waiting for the mutex, let it run and
1203 * discover that its list is now empty.
1205 cancel_work_sync(&mvm->async_handlers_wk);
1208 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1212 lockdep_assert_held(&mvm->mutex);
1214 for (i = 0; i < NUM_PHY_CTX; i++)
1215 if (!mvm->phy_ctxts[i].ref)
1216 return &mvm->phy_ctxts[i];
1218 IWL_ERR(mvm, "No available PHY context\n");
1222 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1225 struct iwl_dev_tx_power_cmd cmd = {
1226 .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1227 .v2.mac_context_id =
1228 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1229 .v2.pwr_restriction = cpu_to_le16(8 * tx_power),
1231 int len = sizeof(cmd);
1233 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1234 cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1236 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN))
1237 len = sizeof(cmd.v2);
1239 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
1242 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1243 struct ieee80211_vif *vif)
1245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1246 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1252 * make sure D0i3 exit is completed, otherwise a target access
1253 * during tx queue configuration could be done when still in
1256 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1261 * Not much to do here. The stack will not allow interface
1262 * types or combinations that we didn't advertise, so we
1263 * don't really have to check the types.
1266 mutex_lock(&mvm->mutex);
1268 /* make sure that beacon statistics don't go backwards with FW reset */
1269 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1270 mvmvif->beacon_stats.accu_num_beacons +=
1271 mvmvif->beacon_stats.num_beacons;
1273 /* Allocate resources for the MAC context, and add it to the fw */
1274 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1278 /* Counting number of interfaces is needed for legacy PM */
1279 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1283 * The AP binding flow can be done only after the beacon
1284 * template is configured (which happens only in the mac80211
1285 * start_ap() flow), and adding the broadcast station can happen
1286 * only after the binding.
1287 * In addition, since modifying the MAC before adding a bcast
1288 * station is not allowed by the FW, delay the adding of MAC context to
1289 * the point where we can also add the bcast station.
1290 * In short: there's not much we can do at this point, other than
1291 * allocating resources :)
1293 if (vif->type == NL80211_IFTYPE_AP ||
1294 vif->type == NL80211_IFTYPE_ADHOC) {
1295 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1297 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1301 iwl_mvm_vif_dbgfs_register(mvm, vif);
1305 mvmvif->features |= hw->netdev_features;
1307 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1311 ret = iwl_mvm_power_update_mac(mvm);
1313 goto out_remove_mac;
1315 /* beacon filtering */
1316 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1318 goto out_remove_mac;
1320 if (!mvm->bf_allowed_vif &&
1321 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1322 mvm->bf_allowed_vif = mvmvif;
1323 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1324 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1328 * P2P_DEVICE interface does not have a channel context assigned to it,
1329 * so a dedicated PHY context is allocated to it and the corresponding
1330 * MAC context is bound to it at this stage.
1332 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1334 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1335 if (!mvmvif->phy_ctxt) {
1340 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1341 ret = iwl_mvm_binding_add_vif(mvm, vif);
1345 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1349 /* Save a pointer to p2p device vif, so it can later be used to
1350 * update the p2p device MAC when a GO is started/stopped */
1351 mvm->p2p_device_vif = vif;
1354 iwl_mvm_vif_dbgfs_register(mvm, vif);
1358 iwl_mvm_binding_remove_vif(mvm, vif);
1360 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1362 if (mvm->bf_allowed_vif == mvmvif) {
1363 mvm->bf_allowed_vif = NULL;
1364 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1365 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1368 mvmvif->phy_ctxt = NULL;
1369 iwl_mvm_mac_ctxt_remove(mvm, vif);
1371 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1374 iwl_mvm_mac_ctxt_release(mvm, vif);
1376 mutex_unlock(&mvm->mutex);
1378 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1383 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1384 struct ieee80211_vif *vif)
1386 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1390 * mac80211 first removes all the stations of the vif and
1391 * then removes the vif. When it removes a station it also
1392 * flushes the AMPDU session. So by now, all the AMPDU sessions
1393 * of all the stations of this vif are closed, and the queues
1394 * of these AMPDU sessions are properly closed.
1395 * We still need to take care of the shared queues of the vif.
1398 mutex_lock(&mvm->mutex);
1399 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
1400 mutex_unlock(&mvm->mutex);
1403 * There are transports that buffer a few frames in the host.
1404 * For these, the flush above isn't enough since while we were
1405 * flushing, the transport might have sent more frames to the
1406 * device. To solve this, wait here until the transport is
1407 * empty. Technically, this could have replaced the flush
1408 * above, but flush is much faster than draining. So flush
1409 * first, and drain to make sure we have no frames in the
1410 * transport anymore.
1411 * If a station still had frames on the shared queues, it is
1412 * already marked as draining, so to complete the draining, we
1413 * just need to wait until the transport is empty.
1415 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
1418 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1420 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1421 * We assume here that all the packets sent to the OFFCHANNEL
1422 * queue are sent in ROC session.
1424 flush_work(&mvm->roc_done_wk);
1427 * By now, all the AC queues are empty. The AGG queues are
1428 * empty too. We already got all the Tx responses for all the
1429 * packets in the queues. The drain work can have been
1430 * triggered. Flush it.
1432 flush_work(&mvm->sta_drained_wk);
1436 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1437 struct ieee80211_vif *vif)
1439 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1440 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1442 iwl_mvm_prepare_mac_removal(mvm, vif);
1444 mutex_lock(&mvm->mutex);
1446 if (mvm->bf_allowed_vif == mvmvif) {
1447 mvm->bf_allowed_vif = NULL;
1448 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1449 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1452 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1455 * For AP/GO interface, the tear down of the resources allocated to the
1456 * interface is be handled as part of the stop_ap flow.
1458 if (vif->type == NL80211_IFTYPE_AP ||
1459 vif->type == NL80211_IFTYPE_ADHOC) {
1460 #ifdef CONFIG_NL80211_TESTMODE
1461 if (vif == mvm->noa_vif) {
1462 mvm->noa_vif = NULL;
1463 mvm->noa_duration = 0;
1466 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1470 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1471 mvm->p2p_device_vif = NULL;
1472 iwl_mvm_rm_bcast_sta(mvm, vif);
1473 iwl_mvm_binding_remove_vif(mvm, vif);
1474 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1475 mvmvif->phy_ctxt = NULL;
1478 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1481 iwl_mvm_power_update_mac(mvm);
1482 iwl_mvm_mac_ctxt_remove(mvm, vif);
1485 iwl_mvm_mac_ctxt_release(mvm, vif);
1486 mutex_unlock(&mvm->mutex);
1489 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1494 struct iwl_mvm_mc_iter_data {
1495 struct iwl_mvm *mvm;
1499 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1500 struct ieee80211_vif *vif)
1502 struct iwl_mvm_mc_iter_data *data = _data;
1503 struct iwl_mvm *mvm = data->mvm;
1504 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1507 /* if we don't have free ports, mcast frames will be dropped */
1508 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1511 if (vif->type != NL80211_IFTYPE_STATION ||
1512 !vif->bss_conf.assoc)
1515 cmd->port_id = data->port_id++;
1516 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1517 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1519 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1521 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1524 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1526 struct iwl_mvm_mc_iter_data iter_data = {
1530 lockdep_assert_held(&mvm->mutex);
1532 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1535 ieee80211_iterate_active_interfaces_atomic(
1536 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1537 iwl_mvm_mc_iface_iterator, &iter_data);
1540 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1541 struct netdev_hw_addr_list *mc_list)
1543 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1544 struct iwl_mcast_filter_cmd *cmd;
1545 struct netdev_hw_addr *addr;
1550 addr_count = netdev_hw_addr_list_count(mc_list);
1551 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1552 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1556 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1557 cmd = kzalloc(len, GFP_ATOMIC);
1563 return (u64)(unsigned long)cmd;
1566 netdev_hw_addr_list_for_each(addr, mc_list) {
1567 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1568 cmd->count, addr->addr);
1569 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1570 addr->addr, ETH_ALEN);
1574 return (u64)(unsigned long)cmd;
1577 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1578 unsigned int changed_flags,
1579 unsigned int *total_flags,
1582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1583 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1585 mutex_lock(&mvm->mutex);
1587 /* replace previous configuration */
1588 kfree(mvm->mcast_filter_cmd);
1589 mvm->mcast_filter_cmd = cmd;
1594 iwl_mvm_recalc_multicast(mvm);
1596 mutex_unlock(&mvm->mutex);
1600 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1601 struct ieee80211_vif *vif,
1602 unsigned int filter_flags,
1603 unsigned int changed_flags)
1605 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1607 /* We support only filter for probe requests */
1608 if (!(changed_flags & FIF_PROBE_REQ))
1611 /* Supported only for p2p client interfaces */
1612 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1616 mutex_lock(&mvm->mutex);
1617 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1618 mutex_unlock(&mvm->mutex);
1621 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1622 struct iwl_bcast_iter_data {
1623 struct iwl_mvm *mvm;
1624 struct iwl_bcast_filter_cmd *cmd;
1629 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1630 const struct iwl_fw_bcast_filter *in_filter,
1631 struct iwl_fw_bcast_filter *out_filter)
1633 struct iwl_fw_bcast_filter_attr *attr;
1636 memcpy(out_filter, in_filter, sizeof(*out_filter));
1638 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1639 attr = &out_filter->attrs[i];
1644 switch (attr->reserved1) {
1645 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1646 if (vif->bss_conf.arp_addr_cnt != 1) {
1651 attr->val = vif->bss_conf.arp_addr_list[0];
1653 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1654 attr->val = *(__be32 *)&vif->addr[2];
1659 attr->reserved1 = 0;
1660 out_filter->num_attrs++;
1664 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1665 struct ieee80211_vif *vif)
1667 struct iwl_bcast_iter_data *data = _data;
1668 struct iwl_mvm *mvm = data->mvm;
1669 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1670 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1671 struct iwl_fw_bcast_mac *bcast_mac;
1674 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1677 bcast_mac = &cmd->macs[mvmvif->id];
1680 * enable filtering only for associated stations, but not for P2P
1683 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1684 !vif->bss_conf.assoc)
1687 bcast_mac->default_discard = 1;
1689 /* copy all configured filters */
1690 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1692 * Make sure we don't exceed our filters limit.
1693 * if there is still a valid filter to be configured,
1694 * be on the safe side and just allow bcast for this mac.
1696 if (WARN_ON_ONCE(data->current_filter >=
1697 ARRAY_SIZE(cmd->filters))) {
1698 bcast_mac->default_discard = 0;
1699 bcast_mac->attached_filters = 0;
1703 iwl_mvm_set_bcast_filter(vif,
1704 &mvm->bcast_filters[i],
1705 &cmd->filters[data->current_filter]);
1707 /* skip current filter if it contains no attributes */
1708 if (!cmd->filters[data->current_filter].num_attrs)
1711 /* attach the filter to current mac */
1712 bcast_mac->attached_filters |=
1713 cpu_to_le16(BIT(data->current_filter));
1715 data->current_filter++;
1719 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1720 struct iwl_bcast_filter_cmd *cmd)
1722 struct iwl_bcast_iter_data iter_data = {
1727 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1730 memset(cmd, 0, sizeof(*cmd));
1731 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1732 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1734 #ifdef CONFIG_IWLWIFI_DEBUGFS
1735 /* use debugfs filters/macs if override is configured */
1736 if (mvm->dbgfs_bcast_filtering.override) {
1737 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1738 sizeof(cmd->filters));
1739 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1745 /* if no filters are configured, do nothing */
1746 if (!mvm->bcast_filters)
1749 /* configure and attach these filters for each associated sta vif */
1750 ieee80211_iterate_active_interfaces(
1751 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1752 iwl_mvm_bcast_filter_iterator, &iter_data);
1757 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1759 struct iwl_bcast_filter_cmd cmd;
1761 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1764 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1767 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1771 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
1777 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1778 struct ieee80211_vif *vif)
1780 struct iwl_mu_group_mgmt_cmd cmd = {};
1782 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1783 WLAN_MEMBERSHIP_LEN);
1784 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1785 WLAN_USER_POSITION_LEN);
1787 return iwl_mvm_send_cmd_pdu(mvm,
1788 WIDE_ID(DATA_PATH_GROUP,
1789 UPDATE_MU_GROUPS_CMD),
1790 0, sizeof(cmd), &cmd);
1793 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1794 struct ieee80211_vif *vif)
1796 if (vif->mu_mimo_owner) {
1797 struct iwl_mu_group_mgmt_notif *notif = _data;
1800 * MU-MIMO Group Id action frame is little endian. We treat
1801 * the data received from firmware as if it came from the
1802 * action frame, so no conversion is needed.
1804 ieee80211_update_mu_groups(vif,
1805 (u8 *)¬if->membership_status,
1806 (u8 *)¬if->user_position);
1810 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1811 struct iwl_rx_cmd_buffer *rxb)
1813 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1814 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1816 ieee80211_iterate_active_interfaces_atomic(
1817 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1818 iwl_mvm_mu_mimo_iface_iterator, notif);
1821 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1822 struct ieee80211_vif *vif,
1823 struct ieee80211_bss_conf *bss_conf,
1826 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1830 * Re-calculate the tsf id, as the master-slave relations depend on the
1831 * beacon interval, which was not known when the station interface was
1834 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1835 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1837 if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1839 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1843 * If we're not associated yet, take the (new) BSSID before associating
1844 * so the firmware knows. If we're already associated, then use the old
1845 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1846 * branch for disassociation below.
1848 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1849 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1851 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1853 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1855 /* after sending it once, adopt mac80211 data */
1856 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1857 mvmvif->associated = bss_conf->assoc;
1859 if (changes & BSS_CHANGED_ASSOC) {
1860 if (bss_conf->assoc) {
1861 /* clear statistics to get clean beacon counter */
1862 iwl_mvm_request_statistics(mvm, true);
1863 memset(&mvmvif->beacon_stats, 0,
1864 sizeof(mvmvif->beacon_stats));
1866 /* add quota for this interface */
1867 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1869 IWL_ERR(mvm, "failed to update quotas\n");
1873 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1876 * If we're restarting then the firmware will
1877 * obviously have lost synchronisation with
1878 * the AP. It will attempt to synchronise by
1879 * itself, but we can make it more reliable by
1880 * scheduling a session protection time event.
1882 * The firmware needs to receive a beacon to
1883 * catch up with synchronisation, use 110% of
1884 * the beacon interval.
1886 * Set a large maximum delay to allow for more
1887 * than a single interface.
1889 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1890 iwl_mvm_protect_session(mvm, vif, dur, dur,
1894 iwl_mvm_sf_update(mvm, vif, false);
1895 iwl_mvm_power_vif_assoc(mvm, vif);
1897 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1898 iwl_mvm_update_smps(mvm, vif,
1899 IWL_MVM_SMPS_REQ_PROT,
1900 IEEE80211_SMPS_DYNAMIC);
1902 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1904 * If update fails - SF might be running in associated
1905 * mode while disassociated - which is forbidden.
1907 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1908 "Failed to update SF upon disassociation\n");
1910 /* remove AP station now that the MAC is unassoc */
1911 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1913 IWL_ERR(mvm, "failed to remove AP station\n");
1915 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1916 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1917 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1918 /* remove quota for this interface */
1919 ret = iwl_mvm_update_quotas(mvm, false, NULL);
1921 IWL_ERR(mvm, "failed to update quotas\n");
1924 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1926 /* this will take the cleared BSSID from bss_conf */
1927 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1930 "failed to update MAC %pM (clear after unassoc)\n",
1935 * The firmware tracks the MU-MIMO group on its own.
1936 * However, on HW restart we should restore this data.
1938 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1939 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
1940 ret = iwl_mvm_update_mu_groups(mvm, vif);
1943 "failed to update VHT MU_MIMO groups\n");
1946 iwl_mvm_recalc_multicast(mvm);
1947 iwl_mvm_configure_bcast_filter(mvm);
1949 /* reset rssi values */
1950 mvmvif->bf_data.ave_beacon_signal = 0;
1952 iwl_mvm_bt_coex_vif_change(mvm);
1953 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1954 IEEE80211_SMPS_AUTOMATIC);
1955 if (fw_has_capa(&mvm->fw->ucode_capa,
1956 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1957 iwl_mvm_config_scan(mvm);
1958 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1960 * We received a beacon _after_ association so
1961 * remove the session protection.
1963 iwl_mvm_remove_time_event(mvm, mvmvif,
1964 &mvmvif->time_event_data);
1967 if (changes & BSS_CHANGED_BEACON_INFO) {
1968 iwl_mvm_sf_update(mvm, vif, false);
1969 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1972 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
1974 * Send power command on every beacon change,
1975 * because we may have not enabled beacon abort yet.
1977 BSS_CHANGED_BEACON_INFO)) {
1978 ret = iwl_mvm_power_update_mac(mvm);
1980 IWL_ERR(mvm, "failed to update power mode\n");
1983 if (changes & BSS_CHANGED_TXPOWER) {
1984 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1986 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1989 if (changes & BSS_CHANGED_CQM) {
1990 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1991 /* reset cqm events tracking */
1992 mvmvif->bf_data.last_cqm_event = 0;
1993 if (mvmvif->bf_data.bf_enabled) {
1994 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1997 "failed to update CQM thresholds\n");
2001 if (changes & BSS_CHANGED_ARP_FILTER) {
2002 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2003 iwl_mvm_configure_bcast_filter(mvm);
2007 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2008 struct ieee80211_vif *vif)
2010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2011 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2015 * iwl_mvm_mac_ctxt_add() might read directly from the device
2016 * (the system time), so make sure it is available.
2018 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2022 mutex_lock(&mvm->mutex);
2024 /* Send the beacon template */
2025 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2030 * Re-calculate the tsf id, as the master-slave relations depend on the
2031 * beacon interval, which was not known when the AP interface was added.
2033 if (vif->type == NL80211_IFTYPE_AP)
2034 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2036 mvmvif->ap_assoc_sta_count = 0;
2038 /* Add the mac context */
2039 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2043 /* Perform the binding */
2044 ret = iwl_mvm_binding_add_vif(mvm, vif);
2048 /* Send the bcast station. At this stage the TBTT and DTIM time events
2049 * are added and applied to the scheduler */
2050 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2054 /* must be set before quota calculations */
2055 mvmvif->ap_ibss_active = true;
2057 /* power updated needs to be done before quotas */
2058 iwl_mvm_power_update_mac(mvm);
2060 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2062 goto out_quota_failed;
2064 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2065 if (vif->p2p && mvm->p2p_device_vif)
2066 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2068 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2070 iwl_mvm_bt_coex_vif_change(mvm);
2072 /* we don't support TDLS during DCM */
2073 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2074 iwl_mvm_teardown_tdls_peers(mvm);
2079 iwl_mvm_power_update_mac(mvm);
2080 mvmvif->ap_ibss_active = false;
2081 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2083 iwl_mvm_binding_remove_vif(mvm, vif);
2085 iwl_mvm_mac_ctxt_remove(mvm, vif);
2087 mutex_unlock(&mvm->mutex);
2088 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
2092 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2093 struct ieee80211_vif *vif)
2095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2096 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2098 iwl_mvm_prepare_mac_removal(mvm, vif);
2100 mutex_lock(&mvm->mutex);
2102 /* Handle AP stop while in CSA */
2103 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2104 iwl_mvm_remove_time_event(mvm, mvmvif,
2105 &mvmvif->time_event_data);
2106 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2107 mvmvif->csa_countdown = false;
2110 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2111 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2112 mvm->csa_tx_block_bcn_timeout = 0;
2115 mvmvif->ap_ibss_active = false;
2116 mvm->ap_last_beacon_gp2 = 0;
2118 iwl_mvm_bt_coex_vif_change(mvm);
2120 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2122 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2123 if (vif->p2p && mvm->p2p_device_vif)
2124 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2126 iwl_mvm_update_quotas(mvm, false, NULL);
2127 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2128 iwl_mvm_binding_remove_vif(mvm, vif);
2130 iwl_mvm_power_update_mac(mvm);
2132 iwl_mvm_mac_ctxt_remove(mvm, vif);
2134 mutex_unlock(&mvm->mutex);
2138 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2139 struct ieee80211_vif *vif,
2140 struct ieee80211_bss_conf *bss_conf,
2143 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2145 /* Changes will be applied when the AP/IBSS is started */
2146 if (!mvmvif->ap_ibss_active)
2149 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2150 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2151 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2152 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2154 /* Need to send a new beacon template to the FW */
2155 if (changes & BSS_CHANGED_BEACON &&
2156 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2157 IWL_WARN(mvm, "Failed updating beacon data\n");
2159 if (changes & BSS_CHANGED_TXPOWER) {
2160 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2162 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2166 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2167 struct ieee80211_vif *vif,
2168 struct ieee80211_bss_conf *bss_conf,
2171 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2174 * iwl_mvm_bss_info_changed_station() might call
2175 * iwl_mvm_protect_session(), which reads directly from
2176 * the device (the system time), so make sure it is available.
2178 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2181 mutex_lock(&mvm->mutex);
2183 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2184 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2186 switch (vif->type) {
2187 case NL80211_IFTYPE_STATION:
2188 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2190 case NL80211_IFTYPE_AP:
2191 case NL80211_IFTYPE_ADHOC:
2192 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2195 /* shouldn't happen */
2199 mutex_unlock(&mvm->mutex);
2200 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
2203 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2204 struct ieee80211_vif *vif,
2205 struct ieee80211_scan_request *hw_req)
2207 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2210 if (hw_req->req.n_channels == 0 ||
2211 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2214 mutex_lock(&mvm->mutex);
2215 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2216 mutex_unlock(&mvm->mutex);
2221 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2222 struct ieee80211_vif *vif)
2224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2226 mutex_lock(&mvm->mutex);
2228 /* Due to a race condition, it's possible that mac80211 asks
2229 * us to stop a hw_scan when it's already stopped. This can
2230 * happen, for instance, if we stopped the scan ourselves,
2231 * called ieee80211_scan_completed() and the userspace called
2232 * cancel scan scan before ieee80211_scan_work() could run.
2233 * To handle that, simply return if the scan is not running.
2235 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2236 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2238 mutex_unlock(&mvm->mutex);
2242 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2243 struct ieee80211_sta *sta, u16 tids,
2245 enum ieee80211_frame_release_type reason,
2248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2250 /* Called when we need to transmit (a) frame(s) from mac80211 */
2252 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2253 tids, more_data, false);
2257 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2258 struct ieee80211_sta *sta, u16 tids,
2260 enum ieee80211_frame_release_type reason,
2263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2265 /* Called when we need to transmit (a) frame(s) from agg queue */
2267 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2268 tids, more_data, true);
2271 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif,
2273 enum sta_notify_cmd cmd,
2274 struct ieee80211_sta *sta)
2276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2277 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2278 unsigned long txqs = 0, tids = 0;
2281 spin_lock_bh(&mvmsta->lock);
2282 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2283 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2285 if (tid_data->state != IWL_AGG_ON &&
2286 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2289 __set_bit(tid_data->txq_id, &txqs);
2291 if (iwl_mvm_tid_queued(tid_data) == 0)
2294 __set_bit(tid, &tids);
2298 case STA_NOTIFY_SLEEP:
2299 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
2300 ieee80211_sta_block_awake(hw, sta, true);
2302 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2303 ieee80211_sta_set_buffered(sta, tid, true);
2306 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2308 * The fw updates the STA to be asleep. Tx packets on the Tx
2309 * queues to this station will not be transmitted. The fw will
2310 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2313 case STA_NOTIFY_AWAKE:
2314 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2318 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2319 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2324 spin_unlock_bh(&mvmsta->lock);
2327 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2328 struct ieee80211_vif *vif,
2329 struct ieee80211_sta *sta)
2331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2332 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2335 * This is called before mac80211 does RCU synchronisation,
2336 * so here we already invalidate our internal RCU-protected
2337 * station pointer. The rest of the code will thus no longer
2338 * be able to find the station this way, and we don't rely
2339 * on further RCU synchronisation after the sta_state()
2340 * callback deleted the station.
2342 mutex_lock(&mvm->mutex);
2343 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2344 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2347 mutex_unlock(&mvm->mutex);
2350 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2353 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2356 if (vif->p2p && !iwl_mvm_is_p2p_standalone_uapsd_supported(mvm)) {
2357 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2362 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
2363 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2367 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2371 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2372 struct ieee80211_vif *vif, u8 *peer_addr,
2373 enum nl80211_tdls_operation action)
2375 struct iwl_fw_dbg_trigger_tlv *trig;
2376 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2378 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2381 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2382 tdls_trig = (void *)trig->data;
2383 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
2386 if (!(tdls_trig->action_bitmap & BIT(action)))
2389 if (tdls_trig->peer_mode &&
2390 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2393 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
2394 "TDLS event occurred, peer %pM, action %d",
2398 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2399 struct iwl_mvm_sta *mvm_sta)
2401 struct iwl_mvm_tid_data *tid_data;
2402 struct sk_buff *skb;
2405 spin_lock_bh(&mvm_sta->lock);
2406 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2407 tid_data = &mvm_sta->tid_data[i];
2408 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames)))
2409 ieee80211_free_txskb(mvm->hw, skb);
2411 spin_unlock_bh(&mvm_sta->lock);
2414 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2415 struct ieee80211_vif *vif,
2416 struct ieee80211_sta *sta,
2417 enum ieee80211_sta_state old_state,
2418 enum ieee80211_sta_state new_state)
2420 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2421 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2424 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2425 sta->addr, old_state, new_state);
2427 /* this would be a mac80211 bug ... but don't crash */
2428 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2431 /* if a STA is being removed, reuse its ID */
2432 flush_work(&mvm->sta_drained_wk);
2435 * If we are in a STA removal flow and in DQA mode:
2437 * This is after the sync_rcu part, so the queues have already been
2438 * flushed. No more TXs on their way in mac80211's path, and no more in
2440 * Also, we won't be getting any new TX frames for this station.
2441 * What we might have are deferred TX frames that need to be taken care
2444 * Drop any still-queued deferred-frame before removing the STA, and
2445 * make sure the worker is no longer handling frames for this STA.
2447 if (old_state == IEEE80211_STA_NONE &&
2448 new_state == IEEE80211_STA_NOTEXIST &&
2449 iwl_mvm_is_dqa_supported(mvm)) {
2450 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2452 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2453 flush_work(&mvm->add_stream_wk);
2456 * No need to make sure deferred TX indication is off since the
2457 * worker will already remove it if it was on
2461 mutex_lock(&mvm->mutex);
2462 if (old_state == IEEE80211_STA_NOTEXIST &&
2463 new_state == IEEE80211_STA_NONE) {
2465 * Firmware bug - it'll crash if the beacon interval is less
2466 * than 16. We can't avoid connecting at all, so refuse the
2467 * station state change, this will cause mac80211 to abandon
2468 * attempts to connect to this AP, and eventually wpa_s will
2469 * blacklist the AP...
2471 if (vif->type == NL80211_IFTYPE_STATION &&
2472 vif->bss_conf.beacon_int < 16) {
2474 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2475 sta->addr, vif->bss_conf.beacon_int);
2482 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2483 IWL_MVM_TDLS_STA_COUNT ||
2484 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2485 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2490 ret = iwl_mvm_add_sta(mvm, vif, sta);
2491 if (sta->tdls && ret == 0) {
2492 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2493 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2494 NL80211_TDLS_SETUP);
2496 } else if (old_state == IEEE80211_STA_NONE &&
2497 new_state == IEEE80211_STA_AUTH) {
2499 * EBS may be disabled due to previous failures reported by FW.
2500 * Reset EBS status here assuming environment has been changed.
2502 mvm->last_ebs_successful = true;
2503 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
2505 } else if (old_state == IEEE80211_STA_AUTH &&
2506 new_state == IEEE80211_STA_ASSOC) {
2507 if (vif->type == NL80211_IFTYPE_AP) {
2508 mvmvif->ap_assoc_sta_count++;
2509 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2511 ret = iwl_mvm_update_sta(mvm, vif, sta);
2513 iwl_mvm_rs_rate_init(mvm, sta,
2514 mvmvif->phy_ctxt->channel->band,
2516 } else if (old_state == IEEE80211_STA_ASSOC &&
2517 new_state == IEEE80211_STA_AUTHORIZED) {
2519 /* we don't support TDLS during DCM */
2520 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2521 iwl_mvm_teardown_tdls_peers(mvm);
2524 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2525 NL80211_TDLS_ENABLE_LINK);
2527 /* enable beacon filtering */
2528 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2530 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2531 new_state == IEEE80211_STA_ASSOC) {
2532 /* disable beacon filtering */
2533 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2535 } else if (old_state == IEEE80211_STA_ASSOC &&
2536 new_state == IEEE80211_STA_AUTH) {
2537 if (vif->type == NL80211_IFTYPE_AP) {
2538 mvmvif->ap_assoc_sta_count--;
2539 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2542 } else if (old_state == IEEE80211_STA_AUTH &&
2543 new_state == IEEE80211_STA_NONE) {
2545 } else if (old_state == IEEE80211_STA_NONE &&
2546 new_state == IEEE80211_STA_NOTEXIST) {
2547 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2549 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2550 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2551 NL80211_TDLS_DISABLE_LINK);
2557 mutex_unlock(&mvm->mutex);
2559 if (sta->tdls && ret == 0) {
2560 if (old_state == IEEE80211_STA_NOTEXIST &&
2561 new_state == IEEE80211_STA_NONE)
2562 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2563 else if (old_state == IEEE80211_STA_NONE &&
2564 new_state == IEEE80211_STA_NOTEXIST)
2565 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2571 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2573 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2575 mvm->rts_threshold = value;
2580 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2581 struct ieee80211_vif *vif,
2582 struct ieee80211_sta *sta, u32 changed)
2584 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2586 if (vif->type == NL80211_IFTYPE_STATION &&
2587 changed & IEEE80211_RC_NSS_CHANGED)
2588 iwl_mvm_sf_update(mvm, vif, false);
2591 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2592 struct ieee80211_vif *vif, u16 ac,
2593 const struct ieee80211_tx_queue_params *params)
2595 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2596 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2598 mvmvif->queue_params[ac] = *params;
2601 * No need to update right away, we'll get BSS_CHANGED_QOS
2602 * The exception is P2P_DEVICE interface which needs immediate update.
2604 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2607 mutex_lock(&mvm->mutex);
2608 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2609 mutex_unlock(&mvm->mutex);
2615 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2616 struct ieee80211_vif *vif)
2618 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2619 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2620 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2622 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2626 * iwl_mvm_protect_session() reads directly from the device
2627 * (the system time), so make sure it is available.
2629 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2632 mutex_lock(&mvm->mutex);
2633 /* Try really hard to protect the session and hear a beacon */
2634 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2635 mutex_unlock(&mvm->mutex);
2637 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2640 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2641 struct ieee80211_vif *vif,
2642 struct cfg80211_sched_scan_request *req,
2643 struct ieee80211_scan_ies *ies)
2645 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2649 mutex_lock(&mvm->mutex);
2651 if (!vif->bss_conf.idle) {
2656 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
2659 mutex_unlock(&mvm->mutex);
2663 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2664 struct ieee80211_vif *vif)
2666 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2669 mutex_lock(&mvm->mutex);
2671 /* Due to a race condition, it's possible that mac80211 asks
2672 * us to stop a sched_scan when it's already stopped. This
2673 * can happen, for instance, if we stopped the scan ourselves,
2674 * called ieee80211_sched_scan_stopped() and the userspace called
2675 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2676 * could run. To handle this, simply return if the scan is
2679 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
2680 mutex_unlock(&mvm->mutex);
2684 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
2685 mutex_unlock(&mvm->mutex);
2686 iwl_mvm_wait_for_async_handlers(mvm);
2691 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2692 enum set_key_cmd cmd,
2693 struct ieee80211_vif *vif,
2694 struct ieee80211_sta *sta,
2695 struct ieee80211_key_conf *key)
2697 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2698 struct iwl_mvm_sta *mvmsta;
2699 struct iwl_mvm_key_pn *ptk_pn;
2700 int keyidx = key->keyidx;
2704 if (iwlwifi_mod_params.sw_crypto) {
2705 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2709 switch (key->cipher) {
2710 case WLAN_CIPHER_SUITE_TKIP:
2711 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2712 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2714 case WLAN_CIPHER_SUITE_CCMP:
2715 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2717 case WLAN_CIPHER_SUITE_AES_CMAC:
2718 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
2720 case WLAN_CIPHER_SUITE_WEP40:
2721 case WLAN_CIPHER_SUITE_WEP104:
2722 /* For non-client mode, only use WEP keys for TX as we probably
2723 * don't have a station yet anyway and would then have to keep
2724 * track of the keys, linking them to each of the clients/peers
2725 * as they appear. For now, don't do that, for performance WEP
2726 * offload doesn't really matter much, but we need it for some
2727 * other offload features in client mode.
2729 if (vif->type != NL80211_IFTYPE_STATION)
2733 /* currently FW supports only one optional cipher scheme */
2734 if (hw->n_cipher_schemes &&
2735 hw->cipher_schemes->cipher == key->cipher)
2736 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2741 mutex_lock(&mvm->mutex);
2745 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2746 vif->type == NL80211_IFTYPE_AP) && !sta) {
2748 * GTK on AP interface is a TX-only key, return 0;
2749 * on IBSS they're per-station and because we're lazy
2750 * we don't support them for RX, so do the same.
2751 * CMAC in AP/IBSS modes must be done in software.
2753 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
2757 key->hw_key_idx = STA_KEY_IDX_INVALID;
2761 /* During FW restart, in order to restore the state as it was,
2762 * don't try to reprogram keys we previously failed for.
2764 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2765 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2766 IWL_DEBUG_MAC80211(mvm,
2767 "skip invalid idx key programming during restart\n");
2772 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2773 sta && iwl_mvm_has_new_rx_api(mvm) &&
2774 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2775 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2776 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2777 struct ieee80211_key_seq seq;
2780 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2781 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2782 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2783 mvm->trans->num_rx_queues *
2784 sizeof(ptk_pn->q[0]),
2791 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2792 ieee80211_get_key_rx_seq(key, tid, &seq);
2793 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2794 memcpy(ptk_pn->q[q].pn[tid],
2796 IEEE80211_CCMP_PN_LEN);
2799 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2802 /* in HW restart reuse the index, otherwise request a new one */
2803 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2804 key_offset = key->hw_key_idx;
2806 key_offset = STA_KEY_IDX_INVALID;
2808 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2809 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
2811 IWL_WARN(mvm, "set key failed\n");
2813 * can't add key for RX, but we don't need it
2814 * in the device for TX so still return 0
2816 key->hw_key_idx = STA_KEY_IDX_INVALID;
2822 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2827 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2828 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2829 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2830 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2831 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2832 ptk_pn = rcu_dereference_protected(
2833 mvmsta->ptk_pn[keyidx],
2834 lockdep_is_held(&mvm->mutex));
2835 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
2837 kfree_rcu(ptk_pn, rcu_head);
2840 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2841 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2847 mutex_unlock(&mvm->mutex);
2851 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2852 struct ieee80211_vif *vif,
2853 struct ieee80211_key_conf *keyconf,
2854 struct ieee80211_sta *sta,
2855 u32 iv32, u16 *phase1key)
2857 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2859 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2862 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2866 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2867 struct iwl_rx_packet *pkt, void *data)
2869 struct iwl_mvm *mvm =
2870 container_of(notif_wait, struct iwl_mvm, notif_wait);
2871 struct iwl_hs20_roc_res *resp;
2872 int resp_len = iwl_rx_packet_payload_len(pkt);
2873 struct iwl_mvm_time_event_data *te_data = data;
2875 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2878 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2879 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2883 resp = (void *)pkt->data;
2886 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2887 resp->status, resp->event_unique_id);
2889 te_data->uid = le32_to_cpu(resp->event_unique_id);
2890 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2893 spin_lock_bh(&mvm->time_event_lock);
2894 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2895 spin_unlock_bh(&mvm->time_event_lock);
2900 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2901 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2902 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2903 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2904 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
2905 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2906 struct ieee80211_channel *channel,
2907 struct ieee80211_vif *vif,
2910 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2911 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2912 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2913 static const u16 time_event_response[] = { HOT_SPOT_CMD };
2914 struct iwl_notification_wait wait_time_event;
2915 u32 dtim_interval = vif->bss_conf.dtim_period *
2916 vif->bss_conf.beacon_int;
2918 struct iwl_hs20_roc_req aux_roc_req = {
2919 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2921 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2922 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2923 /* Set the channel info data */
2924 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
2925 PHY_BAND_24 : PHY_BAND_5,
2926 .channel_info.channel = channel->hw_value,
2927 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2928 /* Set the time and duration */
2929 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2932 delay = AUX_ROC_MIN_DELAY;
2933 req_dur = MSEC_TO_TU(duration);
2936 * If we are associated we want the delay time to be at least one
2937 * dtim interval so that the FW can wait until after the DTIM and
2938 * then start the time event, this will potentially allow us to
2939 * remain off-channel for the max duration.
2940 * Since we want to use almost a whole dtim interval we would also
2941 * like the delay to be for 2-3 dtim intervals, in case there are
2942 * other time events with higher priority.
2944 if (vif->bss_conf.assoc) {
2945 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
2946 /* We cannot remain off-channel longer than the DTIM interval */
2947 if (dtim_interval <= req_dur) {
2948 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
2949 if (req_dur <= AUX_ROC_MIN_DURATION)
2950 req_dur = dtim_interval -
2951 AUX_ROC_MIN_SAFETY_BUFFER;
2955 aux_roc_req.duration = cpu_to_le32(req_dur);
2956 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
2959 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2960 channel->hw_value, req_dur, duration, delay,
2962 /* Set the node address */
2963 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2965 lockdep_assert_held(&mvm->mutex);
2967 spin_lock_bh(&mvm->time_event_lock);
2969 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2970 spin_unlock_bh(&mvm->time_event_lock);
2975 te_data->duration = duration;
2976 te_data->id = HOT_SPOT_CMD;
2978 spin_unlock_bh(&mvm->time_event_lock);
2981 * Use a notification wait, which really just processes the
2982 * command response and doesn't wait for anything, in order
2983 * to be able to process the response and get the UID inside
2984 * the RX path. Using CMD_WANT_SKB doesn't work because it
2985 * stores the buffer and then wakes up this thread, by which
2986 * time another notification (that the time event started)
2987 * might already be processed unsuccessfully.
2989 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2990 time_event_response,
2991 ARRAY_SIZE(time_event_response),
2992 iwl_mvm_rx_aux_roc, te_data);
2994 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2998 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2999 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3003 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3004 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3005 /* should never fail */
3010 spin_lock_bh(&mvm->time_event_lock);
3011 iwl_mvm_te_clear_data(mvm, te_data);
3012 spin_unlock_bh(&mvm->time_event_lock);
3018 static int iwl_mvm_roc(struct ieee80211_hw *hw,
3019 struct ieee80211_vif *vif,
3020 struct ieee80211_channel *channel,
3022 enum ieee80211_roc_type type)
3024 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3025 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3026 struct cfg80211_chan_def chandef;
3027 struct iwl_mvm_phy_ctxt *phy_ctxt;
3030 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3033 flush_work(&mvm->roc_done_wk);
3035 mutex_lock(&mvm->mutex);
3037 switch (vif->type) {
3038 case NL80211_IFTYPE_STATION:
3039 if (fw_has_capa(&mvm->fw->ucode_capa,
3040 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3041 /* Use aux roc framework (HS20) */
3042 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3046 IWL_ERR(mvm, "hotspot not supported\n");
3049 case NL80211_IFTYPE_P2P_DEVICE:
3053 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3058 for (i = 0; i < NUM_PHY_CTX; i++) {
3059 phy_ctxt = &mvm->phy_ctxts[i];
3060 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3063 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3065 * Unbind the P2P_DEVICE from the current PHY context,
3066 * and if the PHY context is not used remove it.
3068 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3069 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3072 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3074 /* Bind the P2P_DEVICE to the current PHY Context */
3075 mvmvif->phy_ctxt = phy_ctxt;
3077 ret = iwl_mvm_binding_add_vif(mvm, vif);
3078 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3081 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3082 goto schedule_time_event;
3086 /* Need to update the PHY context only if the ROC channel changed */
3087 if (channel == mvmvif->phy_ctxt->channel)
3088 goto schedule_time_event;
3090 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3093 * Change the PHY context configuration as it is currently referenced
3094 * only by the P2P Device MAC
3096 if (mvmvif->phy_ctxt->ref == 1) {
3097 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3103 * The PHY context is shared with other MACs. Need to remove the
3104 * P2P Device from the binding, allocate an new PHY context and
3105 * create a new binding
3107 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3113 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3116 IWL_ERR(mvm, "Failed to change PHY context\n");
3120 /* Unbind the P2P_DEVICE from the current PHY context */
3121 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3122 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3125 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3127 /* Bind the P2P_DEVICE to the new allocated PHY context */
3128 mvmvif->phy_ctxt = phy_ctxt;
3130 ret = iwl_mvm_binding_add_vif(mvm, vif);
3131 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3134 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3137 schedule_time_event:
3138 /* Schedule the time events */
3139 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
3142 mutex_unlock(&mvm->mutex);
3143 IWL_DEBUG_MAC80211(mvm, "leave\n");
3147 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3149 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3151 IWL_DEBUG_MAC80211(mvm, "enter\n");
3153 mutex_lock(&mvm->mutex);
3154 iwl_mvm_stop_roc(mvm);
3155 mutex_unlock(&mvm->mutex);
3157 IWL_DEBUG_MAC80211(mvm, "leave\n");
3161 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3162 struct ieee80211_chanctx_conf *ctx)
3164 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3165 struct iwl_mvm_phy_ctxt *phy_ctxt;
3168 lockdep_assert_held(&mvm->mutex);
3170 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
3172 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3178 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3179 ctx->rx_chains_static,
3180 ctx->rx_chains_dynamic);
3182 IWL_ERR(mvm, "Failed to add PHY context\n");
3186 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
3187 *phy_ctxt_id = phy_ctxt->id;
3192 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3193 struct ieee80211_chanctx_conf *ctx)
3195 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3198 mutex_lock(&mvm->mutex);
3199 ret = __iwl_mvm_add_chanctx(mvm, ctx);
3200 mutex_unlock(&mvm->mutex);
3205 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3206 struct ieee80211_chanctx_conf *ctx)
3208 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3209 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3211 lockdep_assert_held(&mvm->mutex);
3213 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3216 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3217 struct ieee80211_chanctx_conf *ctx)
3219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3221 mutex_lock(&mvm->mutex);
3222 __iwl_mvm_remove_chanctx(mvm, ctx);
3223 mutex_unlock(&mvm->mutex);
3226 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3227 struct ieee80211_chanctx_conf *ctx,
3230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3231 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3232 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3234 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3235 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3236 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
3237 IEEE80211_CHANCTX_CHANGE_RADAR |
3238 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
3239 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3240 phy_ctxt->ref, changed))
3243 mutex_lock(&mvm->mutex);
3244 iwl_mvm_bt_coex_vif_change(mvm);
3245 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3246 ctx->rx_chains_static,
3247 ctx->rx_chains_dynamic);
3248 mutex_unlock(&mvm->mutex);
3251 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3252 struct ieee80211_vif *vif,
3253 struct ieee80211_chanctx_conf *ctx,
3254 bool switching_chanctx)
3256 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3257 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3258 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3261 lockdep_assert_held(&mvm->mutex);
3263 mvmvif->phy_ctxt = phy_ctxt;
3265 switch (vif->type) {
3266 case NL80211_IFTYPE_AP:
3267 /* only needed if we're switching chanctx (i.e. during CSA) */
3268 if (switching_chanctx) {
3269 mvmvif->ap_ibss_active = true;
3272 case NL80211_IFTYPE_ADHOC:
3274 * The AP binding flow is handled as part of the start_ap flow
3275 * (in bss_info_changed), similarly for IBSS.
3279 case NL80211_IFTYPE_STATION:
3281 case NL80211_IFTYPE_MONITOR:
3282 /* always disable PS when a monitor interface is active */
3283 mvmvif->ps_disabled = true;
3290 ret = iwl_mvm_binding_add_vif(mvm, vif);
3295 * Power state must be updated before quotas,
3296 * otherwise fw will complain.
3298 iwl_mvm_power_update_mac(mvm);
3300 /* Setting the quota at this stage is only required for monitor
3301 * interfaces. For the other types, the bss_info changed flow
3302 * will handle quota settings.
3304 if (vif->type == NL80211_IFTYPE_MONITOR) {
3305 mvmvif->monitor_active = true;
3306 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3308 goto out_remove_binding;
3310 ret = iwl_mvm_add_snif_sta(mvm, vif);
3312 goto out_remove_binding;
3316 /* Handle binding during CSA */
3317 if (vif->type == NL80211_IFTYPE_AP) {
3318 iwl_mvm_update_quotas(mvm, false, NULL);
3319 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3322 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
3323 u32 duration = 2 * vif->bss_conf.beacon_int;
3325 /* iwl_mvm_protect_session() reads directly from the
3326 * device (the system time), so make sure it is
3329 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3331 goto out_remove_binding;
3333 /* Protect the session to make sure we hear the first
3334 * beacon on the new channel.
3336 iwl_mvm_protect_session(mvm, vif, duration, duration,
3337 vif->bss_conf.beacon_int / 2,
3340 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3342 iwl_mvm_update_quotas(mvm, false, NULL);
3348 iwl_mvm_binding_remove_vif(mvm, vif);
3349 iwl_mvm_power_update_mac(mvm);
3352 mvmvif->phy_ctxt = NULL;
3355 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3356 struct ieee80211_vif *vif,
3357 struct ieee80211_chanctx_conf *ctx)
3359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3362 mutex_lock(&mvm->mutex);
3363 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
3364 mutex_unlock(&mvm->mutex);
3369 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3370 struct ieee80211_vif *vif,
3371 struct ieee80211_chanctx_conf *ctx,
3372 bool switching_chanctx)
3374 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3375 struct ieee80211_vif *disabled_vif = NULL;
3377 lockdep_assert_held(&mvm->mutex);
3379 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3381 switch (vif->type) {
3382 case NL80211_IFTYPE_ADHOC:
3384 case NL80211_IFTYPE_MONITOR:
3385 mvmvif->monitor_active = false;
3386 mvmvif->ps_disabled = false;
3387 iwl_mvm_rm_snif_sta(mvm, vif);
3389 case NL80211_IFTYPE_AP:
3390 /* This part is triggered only during CSA */
3391 if (!switching_chanctx || !mvmvif->ap_ibss_active)
3394 mvmvif->csa_countdown = false;
3396 /* Set CS bit on all the stations */
3397 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3399 /* Save blocked iface, the timeout is set on the next beacon */
3400 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3402 mvmvif->ap_ibss_active = false;
3404 case NL80211_IFTYPE_STATION:
3405 if (!switching_chanctx)
3410 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3416 iwl_mvm_update_quotas(mvm, false, disabled_vif);
3417 iwl_mvm_binding_remove_vif(mvm, vif);
3420 mvmvif->phy_ctxt = NULL;
3421 iwl_mvm_power_update_mac(mvm);
3424 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3425 struct ieee80211_vif *vif,
3426 struct ieee80211_chanctx_conf *ctx)
3428 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3430 mutex_lock(&mvm->mutex);
3431 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3432 mutex_unlock(&mvm->mutex);
3436 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3437 struct ieee80211_vif_chanctx_switch *vifs)
3441 mutex_lock(&mvm->mutex);
3442 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3443 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3445 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3447 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3451 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3455 "failed to assign new_ctx during channel switch\n");
3459 /* we don't support TDLS during DCM - can be caused by channel switch */
3460 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3461 iwl_mvm_teardown_tdls_peers(mvm);
3466 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3469 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3470 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3474 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3476 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3483 /* things keep failing, better restart the hw */
3484 iwl_mvm_nic_restart(mvm, false);
3487 mutex_unlock(&mvm->mutex);
3493 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3494 struct ieee80211_vif_chanctx_switch *vifs)
3498 mutex_lock(&mvm->mutex);
3499 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3501 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3505 "failed to assign new_ctx during channel switch\n");
3512 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3514 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3521 /* things keep failing, better restart the hw */
3522 iwl_mvm_nic_restart(mvm, false);
3525 mutex_unlock(&mvm->mutex);
3530 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3531 struct ieee80211_vif_chanctx_switch *vifs,
3533 enum ieee80211_chanctx_switch_mode mode)
3535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3538 /* we only support a single-vif right now */
3543 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3544 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3546 case CHANCTX_SWMODE_REASSIGN_VIF:
3547 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3557 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3558 struct ieee80211_sta *sta,
3561 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3562 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3564 if (!mvm_sta || !mvm_sta->vif) {
3565 IWL_ERR(mvm, "Station is not associated to a vif\n");
3569 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3572 #ifdef CONFIG_NL80211_TESTMODE
3573 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3574 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3575 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3576 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3579 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3580 struct ieee80211_vif *vif,
3581 void *data, int len)
3583 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3587 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3591 if (!tb[IWL_MVM_TM_ATTR_CMD])
3594 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3595 case IWL_MVM_TM_CMD_SET_NOA:
3596 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3597 !vif->bss_conf.enable_beacon ||
3598 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3601 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3602 if (noa_duration >= vif->bss_conf.beacon_int)
3605 mvm->noa_duration = noa_duration;
3608 return iwl_mvm_update_quotas(mvm, false, NULL);
3609 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3610 /* must be associated client vif - ignore authorized */
3611 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3612 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3613 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3616 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3617 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3618 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3624 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3625 struct ieee80211_vif *vif,
3626 void *data, int len)
3628 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3631 mutex_lock(&mvm->mutex);
3632 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3633 mutex_unlock(&mvm->mutex);
3639 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3640 struct ieee80211_vif *vif,
3641 struct ieee80211_channel_switch *chsw)
3643 /* By implementing this operation, we prevent mac80211 from
3644 * starting its own channel switch timer, so that we can call
3645 * ieee80211_chswitch_done() ourselves at the right time
3646 * (which is when the absence time event starts).
3649 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3650 "dummy channel switch op\n");
3653 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3654 struct ieee80211_vif *vif,
3655 struct ieee80211_channel_switch *chsw)
3657 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3658 struct ieee80211_vif *csa_vif;
3659 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3663 mutex_lock(&mvm->mutex);
3665 mvmvif->csa_failed = false;
3667 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3668 chsw->chandef.center_freq1);
3670 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
3672 switch (vif->type) {
3673 case NL80211_IFTYPE_AP:
3675 rcu_dereference_protected(mvm->csa_vif,
3676 lockdep_is_held(&mvm->mutex));
3677 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3678 "Another CSA is already in progress")) {
3683 rcu_assign_pointer(mvm->csa_vif, vif);
3685 if (WARN_ONCE(mvmvif->csa_countdown,
3686 "Previous CSA countdown didn't complete")) {
3692 case NL80211_IFTYPE_STATION:
3693 if (mvmvif->lqm_active)
3694 iwl_mvm_send_lqm_cmd(vif,
3695 LQM_CMD_OPERATION_STOP_MEASUREMENT,
3698 /* Schedule the time event to a bit before beacon 1,
3699 * to make sure we're in the new channel when the
3702 apply_time = chsw->device_timestamp +
3703 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3704 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3707 iwl_mvm_csa_client_absent(mvm, vif);
3709 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3711 if (mvmvif->bf_data.bf_enabled) {
3712 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3722 mvmvif->ps_disabled = true;
3724 ret = iwl_mvm_power_update_ps(mvm);
3728 /* we won't be on this channel any longer */
3729 iwl_mvm_teardown_tdls_peers(mvm);
3732 mutex_unlock(&mvm->mutex);
3737 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3738 struct ieee80211_vif *vif)
3740 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3741 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3744 mutex_lock(&mvm->mutex);
3746 if (mvmvif->csa_failed) {
3747 mvmvif->csa_failed = false;
3752 if (vif->type == NL80211_IFTYPE_STATION) {
3753 struct iwl_mvm_sta *mvmsta;
3755 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3758 if (WARN_ON(!mvmsta)) {
3763 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3765 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3767 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3771 iwl_mvm_stop_session_protection(mvm, vif);
3774 mvmvif->ps_disabled = false;
3776 ret = iwl_mvm_power_update_ps(mvm);
3779 mutex_unlock(&mvm->mutex);
3784 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3785 struct ieee80211_vif *vif, u32 queues, bool drop)
3787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3788 struct iwl_mvm_vif *mvmvif;
3789 struct iwl_mvm_sta *mvmsta;
3790 struct ieee80211_sta *sta;
3794 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3797 /* Make sure we're done with the deferred traffic before flushing */
3798 if (iwl_mvm_is_dqa_supported(mvm))
3799 flush_work(&mvm->add_stream_wk);
3801 mutex_lock(&mvm->mutex);
3802 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3804 /* flush the AP-station and all TDLS peers */
3805 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3806 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3807 lockdep_is_held(&mvm->mutex));
3808 if (IS_ERR_OR_NULL(sta))
3811 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3812 if (mvmsta->vif != vif)
3815 /* make sure only TDLS peers or the AP are flushed */
3816 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3818 msk |= mvmsta->tfd_queue_msk;
3822 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
3823 IWL_ERR(mvm, "flush request fail\n");
3824 mutex_unlock(&mvm->mutex);
3826 mutex_unlock(&mvm->mutex);
3828 /* this can take a while, and we may need/want other operations
3829 * to succeed while doing this, so do it without the mutex held
3831 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3835 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3836 struct survey_info *survey)
3838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3841 memset(survey, 0, sizeof(*survey));
3843 /* only support global statistics right now */
3847 if (fw_has_capa(&mvm->fw->ucode_capa,
3848 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3851 mutex_lock(&mvm->mutex);
3853 if (mvm->ucode_loaded) {
3854 ret = iwl_mvm_request_statistics(mvm, false);
3859 survey->filled = SURVEY_INFO_TIME |
3860 SURVEY_INFO_TIME_RX |
3861 SURVEY_INFO_TIME_TX |
3862 SURVEY_INFO_TIME_SCAN;
3863 survey->time = mvm->accu_radio_stats.on_time_rf +
3864 mvm->radio_stats.on_time_rf;
3865 do_div(survey->time, USEC_PER_MSEC);
3867 survey->time_rx = mvm->accu_radio_stats.rx_time +
3868 mvm->radio_stats.rx_time;
3869 do_div(survey->time_rx, USEC_PER_MSEC);
3871 survey->time_tx = mvm->accu_radio_stats.tx_time +
3872 mvm->radio_stats.tx_time;
3873 do_div(survey->time_tx, USEC_PER_MSEC);
3875 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3876 mvm->radio_stats.on_time_scan;
3877 do_div(survey->time_scan, USEC_PER_MSEC);
3881 mutex_unlock(&mvm->mutex);
3885 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3886 struct ieee80211_vif *vif,
3887 struct ieee80211_sta *sta,
3888 struct station_info *sinfo)
3890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3891 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3892 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3894 if (fw_has_capa(&mvm->fw->ucode_capa,
3895 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3898 /* if beacon filtering isn't on mac80211 does it anyway */
3899 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3902 if (!vif->bss_conf.assoc)
3905 mutex_lock(&mvm->mutex);
3907 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3910 if (iwl_mvm_request_statistics(mvm, false))
3913 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3914 mvmvif->beacon_stats.accu_num_beacons;
3915 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3916 if (mvmvif->beacon_stats.avg_signal) {
3917 /* firmware only reports a value after RXing a few beacons */
3918 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3919 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3922 mutex_unlock(&mvm->mutex);
3925 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3926 struct ieee80211_vif *vif,
3927 const struct ieee80211_event *event)
3929 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
3931 if ((_cnt) && --(_cnt)) \
3933 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
3936 struct iwl_fw_dbg_trigger_tlv *trig;
3937 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
3939 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3942 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3943 trig_mlme = (void *)trig->data;
3944 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3947 if (event->u.mlme.data == ASSOC_EVENT) {
3948 if (event->u.mlme.status == MLME_DENIED)
3949 CHECK_MLME_TRIGGER(mvm, trig, buf,
3950 trig_mlme->stop_assoc_denied,
3951 "DENIED ASSOC: reason %d",
3952 event->u.mlme.reason);
3953 else if (event->u.mlme.status == MLME_TIMEOUT)
3954 CHECK_MLME_TRIGGER(mvm, trig, buf,
3955 trig_mlme->stop_assoc_timeout,
3957 } else if (event->u.mlme.data == AUTH_EVENT) {
3958 if (event->u.mlme.status == MLME_DENIED)
3959 CHECK_MLME_TRIGGER(mvm, trig, buf,
3960 trig_mlme->stop_auth_denied,
3961 "DENIED AUTH: reason %d",
3962 event->u.mlme.reason);
3963 else if (event->u.mlme.status == MLME_TIMEOUT)
3964 CHECK_MLME_TRIGGER(mvm, trig, buf,
3965 trig_mlme->stop_auth_timeout,
3967 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3968 CHECK_MLME_TRIGGER(mvm, trig, buf,
3969 trig_mlme->stop_rx_deauth,
3970 "DEAUTH RX %d", event->u.mlme.reason);
3971 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3972 CHECK_MLME_TRIGGER(mvm, trig, buf,
3973 trig_mlme->stop_tx_deauth,
3974 "DEAUTH TX %d", event->u.mlme.reason);
3976 #undef CHECK_MLME_TRIGGER
3979 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
3980 struct ieee80211_vif *vif,
3981 const struct ieee80211_event *event)
3983 struct iwl_fw_dbg_trigger_tlv *trig;
3984 struct iwl_fw_dbg_trigger_ba *ba_trig;
3986 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3989 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3990 ba_trig = (void *)trig->data;
3991 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3994 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
3997 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3998 "BAR received from %pM, tid %d, ssn %d",
3999 event->u.ba.sta->addr, event->u.ba.tid,
4004 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4005 struct ieee80211_vif *vif,
4006 const struct ieee80211_event *event)
4008 struct iwl_fw_dbg_trigger_tlv *trig;
4009 struct iwl_fw_dbg_trigger_ba *ba_trig;
4011 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4014 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4015 ba_trig = (void *)trig->data;
4016 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4019 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4022 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4023 "Frame from %pM timed out, tid %d",
4024 event->u.ba.sta->addr, event->u.ba.tid);
4027 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4028 struct ieee80211_vif *vif,
4029 const struct ieee80211_event *event)
4031 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4033 switch (event->type) {
4035 iwl_mvm_event_mlme_callback(mvm, vif, event);
4038 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4040 case BA_FRAME_TIMEOUT:
4041 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4048 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4049 struct iwl_mvm_internal_rxq_notif *notif,
4052 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq);
4053 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4056 lockdep_assert_held(&mvm->mutex);
4058 if (!iwl_mvm_has_new_rx_api(mvm))
4061 notif->cookie = mvm->queue_sync_cookie;
4064 atomic_set(&mvm->queue_sync_counter,
4065 mvm->trans->num_rx_queues);
4067 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
4069 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4074 ret = wait_event_timeout(notif_waitq,
4075 atomic_read(&mvm->queue_sync_counter) == 0,
4080 atomic_set(&mvm->queue_sync_counter, 0);
4081 mvm->queue_sync_cookie++;
4084 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4087 struct iwl_mvm_internal_rxq_notif data = {
4088 .type = IWL_MVM_RXQ_EMPTY,
4092 mutex_lock(&mvm->mutex);
4093 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
4094 mutex_unlock(&mvm->mutex);
4097 const struct ieee80211_ops iwl_mvm_hw_ops = {
4098 .tx = iwl_mvm_mac_tx,
4099 .ampdu_action = iwl_mvm_mac_ampdu_action,
4100 .start = iwl_mvm_mac_start,
4101 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
4102 .stop = iwl_mvm_mac_stop,
4103 .add_interface = iwl_mvm_mac_add_interface,
4104 .remove_interface = iwl_mvm_mac_remove_interface,
4105 .config = iwl_mvm_mac_config,
4106 .prepare_multicast = iwl_mvm_prepare_multicast,
4107 .configure_filter = iwl_mvm_configure_filter,
4108 .config_iface_filter = iwl_mvm_config_iface_filter,
4109 .bss_info_changed = iwl_mvm_bss_info_changed,
4110 .hw_scan = iwl_mvm_mac_hw_scan,
4111 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
4112 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
4113 .sta_state = iwl_mvm_mac_sta_state,
4114 .sta_notify = iwl_mvm_mac_sta_notify,
4115 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
4116 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
4117 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
4118 .sta_rc_update = iwl_mvm_sta_rc_update,
4119 .conf_tx = iwl_mvm_mac_conf_tx,
4120 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
4121 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
4122 .flush = iwl_mvm_mac_flush,
4123 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4124 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
4125 .set_key = iwl_mvm_mac_set_key,
4126 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4127 .remain_on_channel = iwl_mvm_roc,
4128 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
4129 .add_chanctx = iwl_mvm_add_chanctx,
4130 .remove_chanctx = iwl_mvm_remove_chanctx,
4131 .change_chanctx = iwl_mvm_change_chanctx,
4132 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4133 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
4134 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
4136 .start_ap = iwl_mvm_start_ap_ibss,
4137 .stop_ap = iwl_mvm_stop_ap_ibss,
4138 .join_ibss = iwl_mvm_start_ap_ibss,
4139 .leave_ibss = iwl_mvm_stop_ap_ibss,
4141 .set_tim = iwl_mvm_set_tim,
4143 .channel_switch = iwl_mvm_channel_switch,
4144 .pre_channel_switch = iwl_mvm_pre_channel_switch,
4145 .post_channel_switch = iwl_mvm_post_channel_switch,
4147 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4148 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4149 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4151 .event_callback = iwl_mvm_mac_event_callback,
4153 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4155 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4157 #ifdef CONFIG_PM_SLEEP
4159 .suspend = iwl_mvm_suspend,
4160 .resume = iwl_mvm_resume,
4161 .set_wakeup = iwl_mvm_set_wakeup,
4162 .set_rekey_data = iwl_mvm_set_rekey_data,
4163 #if IS_ENABLED(CONFIG_IPV6)
4164 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4166 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4168 .get_survey = iwl_mvm_mac_get_survey,
4169 .sta_statistics = iwl_mvm_mac_sta_statistics,