1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/kernel.h>
66 #include <linux/slab.h>
67 #include <linux/skbuff.h>
68 #include <linux/netdevice.h>
69 #include <linux/etherdevice.h>
71 #include <linux/if_arp.h>
72 #include <linux/devcoredump.h>
73 #include <net/mac80211.h>
74 #include <net/ieee80211_radiotap.h>
77 #include "iwl-op-mode.h"
81 #include "time-event.h"
82 #include "iwl-eeprom-parse.h"
83 #include "iwl-phy-db.h"
85 #include "iwl-fw-error-dump.h"
88 #include "iwl-nvm-parse.h"
90 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
93 .types = BIT(NL80211_IFTYPE_STATION),
97 .types = BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT) |
99 BIT(NL80211_IFTYPE_P2P_GO),
103 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
107 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 .num_different_channels = 2,
111 .limits = iwl_mvm_limits,
112 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
116 #ifdef CONFIG_PM_SLEEP
117 static const struct nl80211_wowlan_tcp_data_token_feature
118 iwl_mvm_wowlan_tcp_token_feature = {
121 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
124 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
125 .tok = &iwl_mvm_wowlan_tcp_token_feature,
126 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
127 sizeof(struct ethhdr) -
128 sizeof(struct iphdr) -
129 sizeof(struct tcphdr),
130 .data_interval_max = 65535, /* __le16 in API */
131 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
132 sizeof(struct ethhdr) -
133 sizeof(struct iphdr) -
134 sizeof(struct tcphdr),
139 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
152 BC_FILTER_MAGIC_NONE = 0,
157 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
161 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
164 /* frame type - arp, hw type - ethernet */
166 BCAST_FILTER_OFFSET_PAYLOAD_START,
167 .offset = sizeof(rfc1042_header),
168 .val = cpu_to_be32(0x08060001),
169 .mask = cpu_to_be32(0xffffffff),
174 BCAST_FILTER_OFFSET_PAYLOAD_START,
175 .offset = sizeof(rfc1042_header) + 2 +
176 sizeof(struct arphdr) +
177 ETH_ALEN + sizeof(__be32) +
179 .mask = cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
186 /* dhcp offer bcast */
188 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
193 .offset = offsetof(struct udphdr, dest),
194 .val = cpu_to_be32(0x00440000),
195 .mask = cpu_to_be32(0xffff0000),
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .mask = cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
207 /* last filter must be empty */
212 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214 if (!iwl_mvm_is_d0i3_supported(mvm))
217 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
218 spin_lock_bh(&mvm->refs_lock);
219 mvm->refs[ref_type]++;
220 spin_unlock_bh(&mvm->refs_lock);
221 iwl_trans_ref(mvm->trans);
224 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226 if (!iwl_mvm_is_d0i3_supported(mvm))
229 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
230 spin_lock_bh(&mvm->refs_lock);
231 WARN_ON(!mvm->refs[ref_type]--);
232 spin_unlock_bh(&mvm->refs_lock);
233 iwl_trans_unref(mvm->trans);
236 static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
237 enum iwl_mvm_ref_type except_ref)
241 if (!iwl_mvm_is_d0i3_supported(mvm))
244 spin_lock_bh(&mvm->refs_lock);
245 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
246 if (except_ref == i || !mvm->refs[i])
249 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
251 for (j = 0; j < mvm->refs[i]; j++)
252 iwl_trans_unref(mvm->trans);
255 spin_unlock_bh(&mvm->refs_lock);
258 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
263 if (!iwl_mvm_is_d0i3_supported(mvm))
266 spin_lock_bh(&mvm->refs_lock);
267 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
273 spin_unlock_bh(&mvm->refs_lock);
278 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
280 iwl_mvm_ref(mvm, ref_type);
282 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
286 iwl_mvm_unref(mvm, ref_type);
293 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
297 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
298 for (i = 0; i < NUM_PHY_CTX; i++) {
299 mvm->phy_ctxts[i].id = i;
300 mvm->phy_ctxts[i].ref = 0;
304 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
306 enum iwl_mcc_source src_id,
309 struct ieee80211_regdomain *regd = NULL;
310 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
312 struct iwl_mcc_update_resp *resp;
314 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
316 lockdep_assert_held(&mvm->mutex);
318 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
319 if (IS_ERR_OR_NULL(resp)) {
320 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
321 PTR_ERR_OR_ZERO(resp));
326 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
328 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
329 __le32_to_cpu(resp->n_channels),
331 __le16_to_cpu(resp->mcc));
332 /* Store the return source id */
333 src_id = resp->source_id;
335 if (IS_ERR_OR_NULL(regd)) {
336 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
337 PTR_ERR_OR_ZERO(regd));
341 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
342 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
343 mvm->lar_regdom_set = true;
344 mvm->mcc_src = src_id;
350 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
353 struct ieee80211_regdomain *regd;
355 if (!iwl_mvm_is_lar_supported(mvm))
358 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
359 if (!IS_ERR_OR_NULL(regd)) {
360 /* only update the regulatory core if changed */
362 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
368 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
371 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
372 iwl_mvm_is_wifi_mcc_supported(mvm) ?
373 MCC_SOURCE_GET_CURRENT :
374 MCC_SOURCE_OLD_FW, changed);
377 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
379 enum iwl_mcc_source used_src;
380 struct ieee80211_regdomain *regd;
383 const struct ieee80211_regdomain *r =
384 rtnl_dereference(mvm->hw->wiphy->regd);
389 /* save the last source in case we overwrite it below */
390 used_src = mvm->mcc_src;
391 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
392 /* Notify the firmware we support wifi location updates */
393 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
394 if (!IS_ERR_OR_NULL(regd))
398 /* Now set our last stored MCC and source */
399 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
401 if (IS_ERR_OR_NULL(regd))
404 /* update cfg80211 if the regdomain was changed */
406 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
414 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
416 struct ieee80211_hw *hw = mvm->hw;
418 static const u32 mvm_ciphers[] = {
419 WLAN_CIPHER_SUITE_WEP40,
420 WLAN_CIPHER_SUITE_WEP104,
421 WLAN_CIPHER_SUITE_TKIP,
422 WLAN_CIPHER_SUITE_CCMP,
425 /* Tell mac80211 our characteristics */
426 hw->flags = IEEE80211_HW_SIGNAL_DBM |
427 IEEE80211_HW_SPECTRUM_MGMT |
428 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
429 IEEE80211_HW_QUEUE_CONTROL |
430 IEEE80211_HW_WANT_MONITOR_VIF |
431 IEEE80211_HW_SUPPORTS_PS |
432 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
433 IEEE80211_HW_AMPDU_AGGREGATION |
434 IEEE80211_HW_TIMING_BEACON_ONLY |
435 IEEE80211_HW_CONNECTION_MONITOR |
436 IEEE80211_HW_CHANCTX_STA_CSA |
437 IEEE80211_HW_SUPPORT_FAST_XMIT |
438 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
440 hw->queues = mvm->first_agg_queue;
441 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
442 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
443 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
444 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
445 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
446 hw->rate_control_algorithm = "iwl-mvm-rs";
447 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
448 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
450 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
451 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
452 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
453 hw->wiphy->cipher_suites = mvm->ciphers;
456 * Enable 11w if advertised by firmware and software crypto
457 * is not enabled (as the firmware will interpret some mgmt
458 * packets, so enabling it with software crypto isn't safe)
460 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
461 !iwlwifi_mod_params.sw_crypto) {
462 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
463 mvm->ciphers[hw->wiphy->n_cipher_suites] =
464 WLAN_CIPHER_SUITE_AES_CMAC;
465 hw->wiphy->n_cipher_suites++;
468 /* currently FW API supports only one optional cipher scheme */
469 if (mvm->fw->cs[0].cipher) {
470 mvm->hw->n_cipher_schemes = 1;
471 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
472 mvm->ciphers[hw->wiphy->n_cipher_suites] =
473 mvm->fw->cs[0].cipher;
474 hw->wiphy->n_cipher_suites++;
477 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
478 hw->wiphy->features |=
479 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
480 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
481 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
483 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
484 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
485 hw->chanctx_data_size = sizeof(u16);
487 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
488 BIT(NL80211_IFTYPE_P2P_CLIENT) |
489 BIT(NL80211_IFTYPE_AP) |
490 BIT(NL80211_IFTYPE_P2P_GO) |
491 BIT(NL80211_IFTYPE_P2P_DEVICE) |
492 BIT(NL80211_IFTYPE_ADHOC);
494 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
495 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
496 if (iwl_mvm_is_lar_supported(mvm))
497 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
499 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
500 REGULATORY_DISABLE_BEACON_HINTS;
502 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
503 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
505 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
507 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
508 hw->wiphy->n_iface_combinations =
509 ARRAY_SIZE(iwl_mvm_iface_combinations);
511 hw->wiphy->max_remain_on_channel_duration = 10000;
512 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
513 /* we can compensate an offset of up to 3 channels = 15 MHz */
514 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
516 /* Extract MAC address */
517 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
518 hw->wiphy->addresses = mvm->addresses;
519 hw->wiphy->n_addresses = 1;
521 /* Extract additional MAC addresses if available */
522 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
523 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
525 for (i = 1; i < num_mac; i++) {
526 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
528 mvm->addresses[i].addr[5]++;
529 hw->wiphy->n_addresses++;
532 iwl_mvm_reset_phy_ctxts(mvm);
534 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
536 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
538 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
539 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
540 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
542 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
543 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
545 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
547 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
548 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
549 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
550 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
551 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
552 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
554 if (fw_has_capa(&mvm->fw->ucode_capa,
555 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
556 fw_has_api(&mvm->fw->ucode_capa,
557 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
558 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
559 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
562 hw->wiphy->hw_version = mvm->trans->hw_id;
564 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
565 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
567 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
569 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
570 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
571 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
572 /* we create the 802.11 header and zero length SSID IE. */
573 hw->wiphy->max_sched_scan_ie_len =
574 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
576 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
577 NL80211_FEATURE_LOW_PRIORITY_SCAN |
578 NL80211_FEATURE_P2P_GO_OPPPS |
579 NL80211_FEATURE_DYNAMIC_SMPS |
580 NL80211_FEATURE_STATIC_SMPS |
581 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
583 if (fw_has_capa(&mvm->fw->ucode_capa,
584 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
585 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
586 if (fw_has_capa(&mvm->fw->ucode_capa,
587 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
588 hw->wiphy->features |= NL80211_FEATURE_QUIET;
590 if (fw_has_capa(&mvm->fw->ucode_capa,
591 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
592 hw->wiphy->features |=
593 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
595 if (fw_has_capa(&mvm->fw->ucode_capa,
596 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
597 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
599 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
601 #ifdef CONFIG_PM_SLEEP
602 if (iwl_mvm_is_d0i3_supported(mvm) &&
603 device_can_wakeup(mvm->trans->dev)) {
604 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
605 hw->wiphy->wowlan = &mvm->wowlan;
608 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
609 mvm->trans->ops->d3_suspend &&
610 mvm->trans->ops->d3_resume &&
611 device_can_wakeup(mvm->trans->dev)) {
612 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
613 WIPHY_WOWLAN_DISCONNECT |
614 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
615 WIPHY_WOWLAN_RFKILL_RELEASE |
616 WIPHY_WOWLAN_NET_DETECT;
617 if (!iwlwifi_mod_params.sw_crypto)
618 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
619 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
620 WIPHY_WOWLAN_4WAY_HANDSHAKE;
622 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
623 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
624 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
625 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
626 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
627 hw->wiphy->wowlan = &mvm->wowlan;
631 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
632 /* assign default bcast filtering configuration */
633 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
636 ret = iwl_mvm_leds_init(mvm);
640 if (fw_has_capa(&mvm->fw->ucode_capa,
641 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
642 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
643 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
646 if (fw_has_capa(&mvm->fw->ucode_capa,
647 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
648 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
649 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
652 ret = ieee80211_register_hw(mvm->hw);
654 iwl_mvm_leds_exit(mvm);
659 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
660 struct ieee80211_sta *sta,
663 struct iwl_mvm_sta *mvmsta;
667 * double check the IN_D0I3 flag both before and after
668 * taking the spinlock, in order to prevent taking
669 * the spinlock when not needed.
671 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
674 spin_lock(&mvm->d0i3_tx_lock);
676 * testing the flag again ensures the skb dequeue
677 * loop (on d0i3 exit) hasn't run yet.
679 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
682 mvmsta = iwl_mvm_sta_from_mac80211(sta);
683 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
684 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
687 __skb_queue_tail(&mvm->d0i3_tx, skb);
688 ieee80211_stop_queues(mvm->hw);
691 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
692 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
696 spin_unlock(&mvm->d0i3_tx_lock);
700 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
701 struct ieee80211_tx_control *control,
704 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
705 struct ieee80211_sta *sta = control->sta;
706 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
707 struct ieee80211_hdr *hdr = (void *)skb->data;
709 if (iwl_mvm_is_radio_killed(mvm)) {
710 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
714 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
715 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
716 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
719 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
720 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
721 ieee80211_is_mgmt(hdr->frame_control) &&
722 !ieee80211_is_deauth(hdr->frame_control) &&
723 !ieee80211_is_disassoc(hdr->frame_control) &&
724 !ieee80211_is_action(hdr->frame_control)))
728 if (iwl_mvm_defer_tx(mvm, sta, skb))
730 if (iwl_mvm_tx_skb(mvm, skb, sta))
735 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
739 ieee80211_free_txskb(hw, skb);
742 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
744 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
749 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
751 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
753 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
756 /* enabled by default */
760 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
762 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
764 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
768 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
769 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
770 enum ieee80211_ampdu_mlme_action action)
772 struct iwl_fw_dbg_trigger_tlv *trig;
773 struct iwl_fw_dbg_trigger_ba *ba_trig;
775 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
778 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
779 ba_trig = (void *)trig->data;
781 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
785 case IEEE80211_AMPDU_TX_OPERATIONAL: {
786 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
787 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
789 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
790 "TX AGG START: MAC %pM tid %d ssn %d\n",
791 sta->addr, tid, tid_data->ssn);
794 case IEEE80211_AMPDU_TX_STOP_CONT:
795 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
796 "TX AGG STOP: MAC %pM tid %d\n",
799 case IEEE80211_AMPDU_RX_START:
800 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
801 "RX AGG START: MAC %pM tid %d ssn %d\n",
802 sta->addr, tid, rx_ba_ssn);
804 case IEEE80211_AMPDU_RX_STOP:
805 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
806 "RX AGG STOP: MAC %pM tid %d\n",
814 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
815 struct ieee80211_vif *vif,
816 enum ieee80211_ampdu_mlme_action action,
817 struct ieee80211_sta *sta, u16 tid,
818 u16 *ssn, u8 buf_size)
820 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
822 bool tx_agg_ref = false;
824 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
825 sta->addr, tid, action);
827 if (!(mvm->nvm_data->sku_cap_11n_enable))
830 /* return from D0i3 before starting a new Tx aggregation */
832 case IEEE80211_AMPDU_TX_START:
833 case IEEE80211_AMPDU_TX_STOP_CONT:
834 case IEEE80211_AMPDU_TX_STOP_FLUSH:
835 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
836 case IEEE80211_AMPDU_TX_OPERATIONAL:
838 * for tx start, wait synchronously until D0i3 exit to
839 * get the correct sequence number for the tid.
840 * additionally, some other ampdu actions use direct
841 * target access, which is not handled automatically
842 * by the trans layer (unlike commands), so wait for
843 * d0i3 exit in these cases as well.
845 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
855 mutex_lock(&mvm->mutex);
858 case IEEE80211_AMPDU_RX_START:
859 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
863 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
865 case IEEE80211_AMPDU_RX_STOP:
866 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
868 case IEEE80211_AMPDU_TX_START:
869 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
873 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
875 case IEEE80211_AMPDU_TX_STOP_CONT:
876 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
878 case IEEE80211_AMPDU_TX_STOP_FLUSH:
879 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
880 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
882 case IEEE80211_AMPDU_TX_OPERATIONAL:
883 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
894 if (action == IEEE80211_AMPDU_RX_START)
897 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
900 mutex_unlock(&mvm->mutex);
903 * If the tid is marked as started, we won't use it for offloaded
904 * traffic on the next D0i3 entry. It's safe to unref.
907 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
912 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
913 struct ieee80211_vif *vif)
915 struct iwl_mvm *mvm = data;
916 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
918 mvmvif->uploaded = false;
919 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
921 spin_lock_bh(&mvm->time_event_lock);
922 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
923 spin_unlock_bh(&mvm->time_event_lock);
925 mvmvif->phy_ctxt = NULL;
926 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
929 static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
930 const void *data, size_t datalen)
932 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
934 ssize_t bytes_read_trans;
936 if (offset < dump_ptrs->op_mode_len) {
937 bytes_read = min_t(ssize_t, count,
938 dump_ptrs->op_mode_len - offset);
939 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
941 offset += bytes_read;
950 if (!dump_ptrs->trans_ptr)
953 offset -= dump_ptrs->op_mode_len;
954 bytes_read_trans = min_t(ssize_t, count,
955 dump_ptrs->trans_ptr->len - offset);
956 memcpy(buffer + bytes_read,
957 (u8 *)dump_ptrs->trans_ptr->data + offset,
960 return bytes_read + bytes_read_trans;
963 static void iwl_mvm_free_coredump(const void *data)
965 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
967 vfree(fw_error_dump->op_mode_ptr);
968 vfree(fw_error_dump->trans_ptr);
969 kfree(fw_error_dump);
972 static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
973 struct iwl_fw_error_dump_data **dump_data)
975 struct iwl_fw_error_dump_fifo *fifo_hdr;
981 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
984 /* Pull RXF data from all RXFs */
985 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
987 * Keep aside the additional offset that might be needed for
990 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
992 fifo_hdr = (void *)(*dump_data)->data;
993 fifo_data = (void *)fifo_hdr->data;
994 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
996 /* No need to try to read the data if the length is 0 */
1000 /* Add a TLV for the RXF */
1001 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
1002 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1004 fifo_hdr->fifo_num = cpu_to_le32(i);
1005 fifo_hdr->available_bytes =
1006 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1010 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1014 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1017 fifo_hdr->fence_ptr =
1018 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1021 fifo_hdr->fence_mode =
1022 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1023 RXF_SET_FENCE_MODE +
1027 iwl_trans_write_prph(mvm->trans,
1028 RXF_SET_FENCE_MODE + offset_diff, 0x1);
1029 /* Set fence pointer to the same place like WR pointer */
1030 iwl_trans_write_prph(mvm->trans,
1031 RXF_LD_WR2FENCE + offset_diff, 0x1);
1032 /* Set fence offset */
1033 iwl_trans_write_prph(mvm->trans,
1034 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
1038 fifo_len /= sizeof(u32); /* Size in DWORDS */
1039 for (j = 0; j < fifo_len; j++)
1040 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1041 RXF_FIFO_RD_FENCE_INC +
1043 *dump_data = iwl_fw_error_next_data(*dump_data);
1046 /* Pull TXF data from all TXFs */
1047 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
1048 /* Mark the number of TXF we're pulling now */
1049 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
1051 fifo_hdr = (void *)(*dump_data)->data;
1052 fifo_data = (void *)fifo_hdr->data;
1053 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
1055 /* No need to try to read the data if the length is 0 */
1059 /* Add a TLV for the FIFO */
1060 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
1061 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1063 fifo_hdr->fifo_num = cpu_to_le32(i);
1064 fifo_hdr->available_bytes =
1065 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1066 TXF_FIFO_ITEM_CNT));
1068 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1071 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1073 fifo_hdr->fence_ptr =
1074 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1076 fifo_hdr->fence_mode =
1077 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1080 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
1081 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
1084 /* Dummy-read to advance the read pointer to the head */
1085 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1088 fifo_len /= sizeof(u32); /* Size in DWORDS */
1089 for (j = 0; j < fifo_len; j++)
1090 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1091 TXF_READ_MODIFY_DATA);
1092 *dump_data = iwl_fw_error_next_data(*dump_data);
1095 iwl_trans_release_nic_access(mvm->trans, &flags);
1098 void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1100 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1104 kfree(mvm->fw_dump_desc);
1105 mvm->fw_dump_desc = NULL;
1108 #define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1109 #define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1111 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
1113 struct iwl_fw_error_dump_file *dump_file;
1114 struct iwl_fw_error_dump_data *dump_data;
1115 struct iwl_fw_error_dump_info *dump_info;
1116 struct iwl_fw_error_dump_mem *dump_mem;
1117 struct iwl_fw_error_dump_trigger_desc *dump_trig;
1118 struct iwl_mvm_dump_ptrs *fw_error_dump;
1119 u32 sram_len, sram_ofs;
1120 u32 file_len, fifo_data_len = 0;
1121 u32 smem_len = mvm->cfg->smem_len;
1122 u32 sram2_len = mvm->cfg->dccm2_len;
1124 lockdep_assert_held(&mvm->mutex);
1126 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
1130 /* SRAM - include stack CCM if driver knows the values for it */
1131 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1132 const struct fw_img *img;
1134 img = &mvm->fw->img[mvm->cur_ucode];
1135 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1136 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1138 sram_ofs = mvm->cfg->dccm_offset;
1139 sram_len = mvm->cfg->dccm_len;
1142 /* reading RXF/TXF sizes */
1143 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1144 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1149 /* Count RXF size */
1150 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1151 if (!mem_cfg->rxfifo_size[i])
1154 /* Add header info */
1155 fifo_data_len += mem_cfg->rxfifo_size[i] +
1156 sizeof(*dump_data) +
1157 sizeof(struct iwl_fw_error_dump_fifo);
1160 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1161 if (!mem_cfg->txfifo_size[i])
1164 /* Add header info */
1165 fifo_data_len += mem_cfg->txfifo_size[i] +
1166 sizeof(*dump_data) +
1167 sizeof(struct iwl_fw_error_dump_fifo);
1171 file_len = sizeof(*dump_file) +
1172 sizeof(*dump_data) * 2 +
1173 sram_len + sizeof(*dump_mem) +
1178 * In 8000 HW family B-step include the ICCM (which resides separately)
1180 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1181 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1182 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1185 if (mvm->fw_dump_desc)
1186 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1187 mvm->fw_dump_desc->len;
1189 /* Make room for the SMEM, if it exists */
1191 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
1193 /* Make room for the secondary SRAM, if it exists */
1195 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1197 dump_file = vzalloc(file_len);
1199 kfree(fw_error_dump);
1200 iwl_mvm_free_fw_dump_desc(mvm);
1204 fw_error_dump->op_mode_ptr = dump_file;
1206 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
1207 dump_data = (void *)dump_file->data;
1209 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1210 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1211 dump_info = (void *) dump_data->data;
1212 dump_info->device_family =
1213 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1214 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1215 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
1216 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
1217 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1218 sizeof(dump_info->fw_human_readable));
1219 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1220 sizeof(dump_info->dev_human_readable));
1221 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1222 sizeof(dump_info->bus_human_readable));
1224 dump_data = iwl_fw_error_next_data(dump_data);
1225 /* We only dump the FIFOs if the FW is in error state */
1226 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1227 iwl_mvm_dump_fifos(mvm, &dump_data);
1229 if (mvm->fw_dump_desc) {
1230 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1231 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1232 mvm->fw_dump_desc->len);
1233 dump_trig = (void *)dump_data->data;
1234 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1235 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1237 /* now we can free this copy */
1238 iwl_mvm_free_fw_dump_desc(mvm);
1239 dump_data = iwl_fw_error_next_data(dump_data);
1242 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1243 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1244 dump_mem = (void *)dump_data->data;
1245 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1246 dump_mem->offset = cpu_to_le32(sram_ofs);
1247 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
1251 dump_data = iwl_fw_error_next_data(dump_data);
1252 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1253 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1254 dump_mem = (void *)dump_data->data;
1255 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1256 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
1257 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
1258 dump_mem->data, smem_len);
1262 dump_data = iwl_fw_error_next_data(dump_data);
1263 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1264 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1265 dump_mem = (void *)dump_data->data;
1266 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1267 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1268 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1269 dump_mem->data, sram2_len);
1272 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1273 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1274 dump_data = iwl_fw_error_next_data(dump_data);
1275 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1276 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1278 dump_mem = (void *)dump_data->data;
1279 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1280 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1281 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1282 dump_mem->data, IWL8260_ICCM_LEN);
1285 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1286 fw_error_dump->op_mode_len = file_len;
1287 if (fw_error_dump->trans_ptr)
1288 file_len += fw_error_dump->trans_ptr->len;
1289 dump_file->file_len = cpu_to_le32(file_len);
1291 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1292 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
1294 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
1297 struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1299 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1303 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1305 /* clear the D3 reconfig, we only need it to avoid dumping a
1306 * firmware coredump on reconfiguration, we shouldn't do that
1307 * on D3->D0 transition
1309 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1310 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
1311 iwl_mvm_fw_error_dump(mvm);
1314 /* cleanup all stale references (scan, roc), but keep the
1315 * ucode_down ref until reconfig is complete
1317 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1319 iwl_trans_stop_device(mvm->trans);
1321 mvm->scan_status = 0;
1322 mvm->ps_disabled = false;
1323 mvm->calibrating = false;
1325 /* just in case one was running */
1326 ieee80211_remain_on_channel_expired(mvm->hw);
1329 * cleanup all interfaces, even inactive ones, as some might have
1330 * gone down during the HW restart
1332 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
1334 mvm->p2p_device_vif = NULL;
1335 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1337 iwl_mvm_reset_phy_ctxts(mvm);
1338 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
1339 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
1340 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1341 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1342 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1343 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1344 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1345 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
1347 ieee80211_wake_queues(mvm->hw);
1349 /* clear any stale d0i3 state */
1350 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1353 mvm->rx_ba_sessions = 0;
1354 mvm->fw_dbg_conf = FW_DBG_INVALID;
1356 /* keep statistics ticking */
1357 iwl_mvm_accu_radio_stats(mvm);
1360 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1364 lockdep_assert_held(&mvm->mutex);
1366 /* Clean up some internal and mac80211 state on restart */
1367 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1368 iwl_mvm_restart_cleanup(mvm);
1370 ret = iwl_mvm_up(mvm);
1372 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1373 /* Something went wrong - we need to finish some cleanup
1374 * that normally iwl_mvm_mac_restart_complete() below
1377 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1378 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1384 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1386 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1389 /* Some hw restart cleanups must not hold the mutex */
1390 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1392 * Make sure we are out of d0i3. This is needed
1393 * to make sure the reference accounting is correct
1394 * (and there is no stale d0i3_exit_work).
1396 wait_event_timeout(mvm->d0i3_exit_waitq,
1397 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1402 mutex_lock(&mvm->mutex);
1403 ret = __iwl_mvm_mac_start(mvm);
1404 mutex_unlock(&mvm->mutex);
1409 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1413 mutex_lock(&mvm->mutex);
1415 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1416 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1417 ret = iwl_mvm_update_quotas(mvm, true, NULL);
1419 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1422 /* allow transport/FW low power modes */
1423 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1426 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1427 * of packets the FW sent out, so we must reconnect.
1429 iwl_mvm_teardown_tdls_peers(mvm);
1431 mutex_unlock(&mvm->mutex);
1434 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1438 if (!iwl_mvm_is_d0i3_supported(mvm))
1441 mutex_lock(&mvm->d0i3_suspend_mutex);
1442 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1443 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1444 &mvm->d0i3_suspend_flags);
1445 mutex_unlock(&mvm->d0i3_suspend_mutex);
1448 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1449 _iwl_mvm_exit_d0i3(mvm);
1452 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1453 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1454 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1457 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
1461 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1462 enum ieee80211_reconfig_type reconfig_type)
1464 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1466 switch (reconfig_type) {
1467 case IEEE80211_RECONFIG_TYPE_RESTART:
1468 iwl_mvm_restart_complete(mvm);
1470 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1471 iwl_mvm_resume_complete(mvm);
1476 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1478 lockdep_assert_held(&mvm->mutex);
1480 /* firmware counters are obviously reset now, but we shouldn't
1481 * partially track so also clear the fw_reset_accu counters.
1483 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1486 * Disallow low power states when the FW is down by taking
1487 * the UCODE_DOWN ref. in case of ongoing hw restart the
1488 * ref is already taken, so don't take it again.
1490 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1491 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1493 /* async_handlers_wk is now blocked */
1496 * The work item could be running or queued if the
1497 * ROC time event stops just as we get here.
1499 flush_work(&mvm->roc_done_wk);
1501 iwl_trans_stop_device(mvm->trans);
1503 iwl_mvm_async_handlers_purge(mvm);
1504 /* async_handlers_list is empty and will stay empty: HW is stopped */
1506 /* the fw is stopped, the aux sta is dead: clean up driver state */
1507 iwl_mvm_del_aux_sta(mvm);
1510 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1511 * won't be called in this case).
1512 * But make sure to cleanup interfaces that have gone down before/during
1513 * HW restart was requested.
1515 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1516 ieee80211_iterate_interfaces(mvm->hw, 0,
1517 iwl_mvm_cleanup_iterator, mvm);
1519 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1520 * make sure there's nothing left there and warn if any is found.
1522 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1525 for (i = 0; i < mvm->max_scans; i++) {
1526 if (WARN_ONCE(mvm->scan_uid_status[i],
1527 "UMAC scan UID %d status was not cleaned\n",
1529 mvm->scan_uid_status[i] = 0;
1533 mvm->ucode_loaded = false;
1536 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1538 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1540 flush_work(&mvm->d0i3_exit_work);
1541 flush_work(&mvm->async_handlers_wk);
1542 cancel_delayed_work_sync(&mvm->fw_dump_wk);
1543 iwl_mvm_free_fw_dump_desc(mvm);
1545 mutex_lock(&mvm->mutex);
1546 __iwl_mvm_mac_stop(mvm);
1547 mutex_unlock(&mvm->mutex);
1550 * The worker might have been waiting for the mutex, let it run and
1551 * discover that its list is now empty.
1553 cancel_work_sync(&mvm->async_handlers_wk);
1556 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1560 lockdep_assert_held(&mvm->mutex);
1562 for (i = 0; i < NUM_PHY_CTX; i++)
1563 if (!mvm->phy_ctxts[i].ref)
1564 return &mvm->phy_ctxts[i];
1566 IWL_ERR(mvm, "No available PHY context\n");
1570 static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1571 struct ieee80211_vif *vif, s8 tx_power)
1573 /* FW is in charge of regulatory enforcement */
1574 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1575 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1576 .pwr_restriction = cpu_to_le16(tx_power),
1579 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1580 sizeof(reduce_txpwr_cmd),
1584 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1587 struct iwl_dev_tx_power_cmd cmd = {
1590 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1591 .pwr_restriction = cpu_to_le16(8 * tx_power),
1594 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_DEV))
1595 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1597 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1598 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1600 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1604 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1605 struct ieee80211_vif *vif)
1607 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1608 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1614 * make sure D0i3 exit is completed, otherwise a target access
1615 * during tx queue configuration could be done when still in
1618 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1623 * Not much to do here. The stack will not allow interface
1624 * types or combinations that we didn't advertise, so we
1625 * don't really have to check the types.
1628 mutex_lock(&mvm->mutex);
1630 /* make sure that beacon statistics don't go backwards with FW reset */
1631 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1632 mvmvif->beacon_stats.accu_num_beacons +=
1633 mvmvif->beacon_stats.num_beacons;
1635 /* Allocate resources for the MAC context, and add it to the fw */
1636 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1640 /* Counting number of interfaces is needed for legacy PM */
1641 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1645 * The AP binding flow can be done only after the beacon
1646 * template is configured (which happens only in the mac80211
1647 * start_ap() flow), and adding the broadcast station can happen
1648 * only after the binding.
1649 * In addition, since modifying the MAC before adding a bcast
1650 * station is not allowed by the FW, delay the adding of MAC context to
1651 * the point where we can also add the bcast station.
1652 * In short: there's not much we can do at this point, other than
1653 * allocating resources :)
1655 if (vif->type == NL80211_IFTYPE_AP ||
1656 vif->type == NL80211_IFTYPE_ADHOC) {
1657 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1659 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1663 iwl_mvm_vif_dbgfs_register(mvm, vif);
1667 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1671 ret = iwl_mvm_power_update_mac(mvm);
1673 goto out_remove_mac;
1675 /* beacon filtering */
1676 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1678 goto out_remove_mac;
1680 if (!mvm->bf_allowed_vif &&
1681 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1682 mvm->bf_allowed_vif = mvmvif;
1683 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1684 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1688 * P2P_DEVICE interface does not have a channel context assigned to it,
1689 * so a dedicated PHY context is allocated to it and the corresponding
1690 * MAC context is bound to it at this stage.
1692 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1694 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1695 if (!mvmvif->phy_ctxt) {
1700 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1701 ret = iwl_mvm_binding_add_vif(mvm, vif);
1705 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1709 /* Save a pointer to p2p device vif, so it can later be used to
1710 * update the p2p device MAC when a GO is started/stopped */
1711 mvm->p2p_device_vif = vif;
1714 iwl_mvm_vif_dbgfs_register(mvm, vif);
1718 iwl_mvm_binding_remove_vif(mvm, vif);
1720 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1722 if (mvm->bf_allowed_vif == mvmvif) {
1723 mvm->bf_allowed_vif = NULL;
1724 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1725 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1728 mvmvif->phy_ctxt = NULL;
1729 iwl_mvm_mac_ctxt_remove(mvm, vif);
1731 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1734 iwl_mvm_mac_ctxt_release(mvm, vif);
1736 mutex_unlock(&mvm->mutex);
1738 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1743 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1744 struct ieee80211_vif *vif)
1746 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1750 * mac80211 first removes all the stations of the vif and
1751 * then removes the vif. When it removes a station it also
1752 * flushes the AMPDU session. So by now, all the AMPDU sessions
1753 * of all the stations of this vif are closed, and the queues
1754 * of these AMPDU sessions are properly closed.
1755 * We still need to take care of the shared queues of the vif.
1758 mutex_lock(&mvm->mutex);
1759 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1760 mutex_unlock(&mvm->mutex);
1763 * There are transports that buffer a few frames in the host.
1764 * For these, the flush above isn't enough since while we were
1765 * flushing, the transport might have sent more frames to the
1766 * device. To solve this, wait here until the transport is
1767 * empty. Technically, this could have replaced the flush
1768 * above, but flush is much faster than draining. So flush
1769 * first, and drain to make sure we have no frames in the
1770 * transport anymore.
1771 * If a station still had frames on the shared queues, it is
1772 * already marked as draining, so to complete the draining, we
1773 * just need to wait until the transport is empty.
1775 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
1778 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1780 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1781 * We assume here that all the packets sent to the OFFCHANNEL
1782 * queue are sent in ROC session.
1784 flush_work(&mvm->roc_done_wk);
1787 * By now, all the AC queues are empty. The AGG queues are
1788 * empty too. We already got all the Tx responses for all the
1789 * packets in the queues. The drain work can have been
1790 * triggered. Flush it.
1792 flush_work(&mvm->sta_drained_wk);
1796 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1797 struct ieee80211_vif *vif)
1799 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1800 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1802 iwl_mvm_prepare_mac_removal(mvm, vif);
1804 mutex_lock(&mvm->mutex);
1806 if (mvm->bf_allowed_vif == mvmvif) {
1807 mvm->bf_allowed_vif = NULL;
1808 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1809 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1812 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1815 * For AP/GO interface, the tear down of the resources allocated to the
1816 * interface is be handled as part of the stop_ap flow.
1818 if (vif->type == NL80211_IFTYPE_AP ||
1819 vif->type == NL80211_IFTYPE_ADHOC) {
1820 #ifdef CONFIG_NL80211_TESTMODE
1821 if (vif == mvm->noa_vif) {
1822 mvm->noa_vif = NULL;
1823 mvm->noa_duration = 0;
1826 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1830 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1831 mvm->p2p_device_vif = NULL;
1832 iwl_mvm_rm_bcast_sta(mvm, vif);
1833 iwl_mvm_binding_remove_vif(mvm, vif);
1834 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1835 mvmvif->phy_ctxt = NULL;
1838 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1841 iwl_mvm_power_update_mac(mvm);
1842 iwl_mvm_mac_ctxt_remove(mvm, vif);
1845 iwl_mvm_mac_ctxt_release(mvm, vif);
1846 mutex_unlock(&mvm->mutex);
1849 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1854 struct iwl_mvm_mc_iter_data {
1855 struct iwl_mvm *mvm;
1859 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1860 struct ieee80211_vif *vif)
1862 struct iwl_mvm_mc_iter_data *data = _data;
1863 struct iwl_mvm *mvm = data->mvm;
1864 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1867 /* if we don't have free ports, mcast frames will be dropped */
1868 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1871 if (vif->type != NL80211_IFTYPE_STATION ||
1872 !vif->bss_conf.assoc)
1875 cmd->port_id = data->port_id++;
1876 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1877 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1879 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1881 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1884 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1886 struct iwl_mvm_mc_iter_data iter_data = {
1890 lockdep_assert_held(&mvm->mutex);
1892 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1895 ieee80211_iterate_active_interfaces_atomic(
1896 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1897 iwl_mvm_mc_iface_iterator, &iter_data);
1900 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1901 struct netdev_hw_addr_list *mc_list)
1903 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1904 struct iwl_mcast_filter_cmd *cmd;
1905 struct netdev_hw_addr *addr;
1910 addr_count = netdev_hw_addr_list_count(mc_list);
1911 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1912 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1916 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1917 cmd = kzalloc(len, GFP_ATOMIC);
1923 return (u64)(unsigned long)cmd;
1926 netdev_hw_addr_list_for_each(addr, mc_list) {
1927 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1928 cmd->count, addr->addr);
1929 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1930 addr->addr, ETH_ALEN);
1934 return (u64)(unsigned long)cmd;
1937 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1938 unsigned int changed_flags,
1939 unsigned int *total_flags,
1942 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1943 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1945 mutex_lock(&mvm->mutex);
1947 /* replace previous configuration */
1948 kfree(mvm->mcast_filter_cmd);
1949 mvm->mcast_filter_cmd = cmd;
1954 iwl_mvm_recalc_multicast(mvm);
1956 mutex_unlock(&mvm->mutex);
1960 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1961 struct iwl_bcast_iter_data {
1962 struct iwl_mvm *mvm;
1963 struct iwl_bcast_filter_cmd *cmd;
1968 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1969 const struct iwl_fw_bcast_filter *in_filter,
1970 struct iwl_fw_bcast_filter *out_filter)
1972 struct iwl_fw_bcast_filter_attr *attr;
1975 memcpy(out_filter, in_filter, sizeof(*out_filter));
1977 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1978 attr = &out_filter->attrs[i];
1983 switch (attr->reserved1) {
1984 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1985 if (vif->bss_conf.arp_addr_cnt != 1) {
1990 attr->val = vif->bss_conf.arp_addr_list[0];
1992 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1993 attr->val = *(__be32 *)&vif->addr[2];
1998 attr->reserved1 = 0;
1999 out_filter->num_attrs++;
2003 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
2004 struct ieee80211_vif *vif)
2006 struct iwl_bcast_iter_data *data = _data;
2007 struct iwl_mvm *mvm = data->mvm;
2008 struct iwl_bcast_filter_cmd *cmd = data->cmd;
2009 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2010 struct iwl_fw_bcast_mac *bcast_mac;
2013 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
2016 bcast_mac = &cmd->macs[mvmvif->id];
2019 * enable filtering only for associated stations, but not for P2P
2022 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
2023 !vif->bss_conf.assoc)
2026 bcast_mac->default_discard = 1;
2028 /* copy all configured filters */
2029 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
2031 * Make sure we don't exceed our filters limit.
2032 * if there is still a valid filter to be configured,
2033 * be on the safe side and just allow bcast for this mac.
2035 if (WARN_ON_ONCE(data->current_filter >=
2036 ARRAY_SIZE(cmd->filters))) {
2037 bcast_mac->default_discard = 0;
2038 bcast_mac->attached_filters = 0;
2042 iwl_mvm_set_bcast_filter(vif,
2043 &mvm->bcast_filters[i],
2044 &cmd->filters[data->current_filter]);
2046 /* skip current filter if it contains no attributes */
2047 if (!cmd->filters[data->current_filter].num_attrs)
2050 /* attach the filter to current mac */
2051 bcast_mac->attached_filters |=
2052 cpu_to_le16(BIT(data->current_filter));
2054 data->current_filter++;
2058 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
2059 struct iwl_bcast_filter_cmd *cmd)
2061 struct iwl_bcast_iter_data iter_data = {
2066 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
2069 memset(cmd, 0, sizeof(*cmd));
2070 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
2071 cmd->max_macs = ARRAY_SIZE(cmd->macs);
2073 #ifdef CONFIG_IWLWIFI_DEBUGFS
2074 /* use debugfs filters/macs if override is configured */
2075 if (mvm->dbgfs_bcast_filtering.override) {
2076 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
2077 sizeof(cmd->filters));
2078 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
2084 /* if no filters are configured, do nothing */
2085 if (!mvm->bcast_filters)
2088 /* configure and attach these filters for each associated sta vif */
2089 ieee80211_iterate_active_interfaces(
2090 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2091 iwl_mvm_bcast_filter_iterator, &iter_data);
2095 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2096 struct ieee80211_vif *vif)
2098 struct iwl_bcast_filter_cmd cmd;
2100 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2103 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2106 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
2110 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2111 struct ieee80211_vif *vif)
2117 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2118 struct ieee80211_vif *vif,
2119 struct ieee80211_bss_conf *bss_conf,
2122 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2126 * Re-calculate the tsf id, as the master-slave relations depend on the
2127 * beacon interval, which was not known when the station interface was
2130 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2131 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2134 * If we're not associated yet, take the (new) BSSID before associating
2135 * so the firmware knows. If we're already associated, then use the old
2136 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2137 * branch for disassociation below.
2139 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2140 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2142 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
2144 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2146 /* after sending it once, adopt mac80211 data */
2147 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2148 mvmvif->associated = bss_conf->assoc;
2150 if (changes & BSS_CHANGED_ASSOC) {
2151 if (bss_conf->assoc) {
2152 /* clear statistics to get clean beacon counter */
2153 iwl_mvm_request_statistics(mvm, true);
2154 memset(&mvmvif->beacon_stats, 0,
2155 sizeof(mvmvif->beacon_stats));
2157 /* add quota for this interface */
2158 ret = iwl_mvm_update_quotas(mvm, true, NULL);
2160 IWL_ERR(mvm, "failed to update quotas\n");
2164 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2167 * If we're restarting then the firmware will
2168 * obviously have lost synchronisation with
2169 * the AP. It will attempt to synchronise by
2170 * itself, but we can make it more reliable by
2171 * scheduling a session protection time event.
2173 * The firmware needs to receive a beacon to
2174 * catch up with synchronisation, use 110% of
2175 * the beacon interval.
2177 * Set a large maximum delay to allow for more
2178 * than a single interface.
2180 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2181 iwl_mvm_protect_session(mvm, vif, dur, dur,
2185 iwl_mvm_sf_update(mvm, vif, false);
2186 iwl_mvm_power_vif_assoc(mvm, vif);
2188 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
2189 iwl_mvm_update_smps(mvm, vif,
2190 IWL_MVM_SMPS_REQ_PROT,
2191 IEEE80211_SMPS_DYNAMIC);
2193 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
2195 * If update fails - SF might be running in associated
2196 * mode while disassociated - which is forbidden.
2198 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2199 "Failed to update SF upon disassociation\n");
2201 /* remove AP station now that the MAC is unassoc */
2202 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2204 IWL_ERR(mvm, "failed to remove AP station\n");
2206 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2207 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
2208 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2209 /* remove quota for this interface */
2210 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2212 IWL_ERR(mvm, "failed to update quotas\n");
2215 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
2217 /* this will take the cleared BSSID from bss_conf */
2218 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2221 "failed to update MAC %pM (clear after unassoc)\n",
2225 iwl_mvm_recalc_multicast(mvm);
2226 iwl_mvm_configure_bcast_filter(mvm, vif);
2228 /* reset rssi values */
2229 mvmvif->bf_data.ave_beacon_signal = 0;
2231 iwl_mvm_bt_coex_vif_change(mvm);
2232 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2233 IEEE80211_SMPS_AUTOMATIC);
2234 } else if (changes & BSS_CHANGED_BEACON_INFO) {
2236 * We received a beacon _after_ association so
2237 * remove the session protection.
2239 iwl_mvm_remove_time_event(mvm, mvmvif,
2240 &mvmvif->time_event_data);
2243 if (changes & BSS_CHANGED_BEACON_INFO) {
2244 iwl_mvm_sf_update(mvm, vif, false);
2245 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2248 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2249 ret = iwl_mvm_power_update_mac(mvm);
2251 IWL_ERR(mvm, "failed to update power mode\n");
2254 if (changes & BSS_CHANGED_TXPOWER) {
2255 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2257 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2260 if (changes & BSS_CHANGED_CQM) {
2261 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2262 /* reset cqm events tracking */
2263 mvmvif->bf_data.last_cqm_event = 0;
2264 if (mvmvif->bf_data.bf_enabled) {
2265 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2268 "failed to update CQM thresholds\n");
2272 if (changes & BSS_CHANGED_ARP_FILTER) {
2273 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2274 iwl_mvm_configure_bcast_filter(mvm, vif);
2278 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2279 struct ieee80211_vif *vif)
2281 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2282 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2286 * iwl_mvm_mac_ctxt_add() might read directly from the device
2287 * (the system time), so make sure it is available.
2289 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2293 mutex_lock(&mvm->mutex);
2295 /* Send the beacon template */
2296 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2301 * Re-calculate the tsf id, as the master-slave relations depend on the
2302 * beacon interval, which was not known when the AP interface was added.
2304 if (vif->type == NL80211_IFTYPE_AP)
2305 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2307 /* Add the mac context */
2308 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2312 /* Perform the binding */
2313 ret = iwl_mvm_binding_add_vif(mvm, vif);
2317 /* Send the bcast station. At this stage the TBTT and DTIM time events
2318 * are added and applied to the scheduler */
2319 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2323 /* must be set before quota calculations */
2324 mvmvif->ap_ibss_active = true;
2326 /* power updated needs to be done before quotas */
2327 iwl_mvm_power_update_mac(mvm);
2329 ret = iwl_mvm_update_quotas(mvm, false, NULL);
2331 goto out_quota_failed;
2333 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2334 if (vif->p2p && mvm->p2p_device_vif)
2335 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2337 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2339 iwl_mvm_bt_coex_vif_change(mvm);
2341 /* we don't support TDLS during DCM */
2342 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2343 iwl_mvm_teardown_tdls_peers(mvm);
2348 iwl_mvm_power_update_mac(mvm);
2349 mvmvif->ap_ibss_active = false;
2350 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2352 iwl_mvm_binding_remove_vif(mvm, vif);
2354 iwl_mvm_mac_ctxt_remove(mvm, vif);
2356 mutex_unlock(&mvm->mutex);
2357 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
2361 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2362 struct ieee80211_vif *vif)
2364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2365 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2367 iwl_mvm_prepare_mac_removal(mvm, vif);
2369 mutex_lock(&mvm->mutex);
2371 /* Handle AP stop while in CSA */
2372 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2373 iwl_mvm_remove_time_event(mvm, mvmvif,
2374 &mvmvif->time_event_data);
2375 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2378 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2379 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2380 mvm->csa_tx_block_bcn_timeout = 0;
2383 mvmvif->ap_ibss_active = false;
2384 mvm->ap_last_beacon_gp2 = 0;
2386 iwl_mvm_bt_coex_vif_change(mvm);
2388 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2390 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2391 if (vif->p2p && mvm->p2p_device_vif)
2392 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2394 iwl_mvm_update_quotas(mvm, false, NULL);
2395 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2396 iwl_mvm_binding_remove_vif(mvm, vif);
2398 iwl_mvm_power_update_mac(mvm);
2400 iwl_mvm_mac_ctxt_remove(mvm, vif);
2402 mutex_unlock(&mvm->mutex);
2406 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2407 struct ieee80211_vif *vif,
2408 struct ieee80211_bss_conf *bss_conf,
2411 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2413 /* Changes will be applied when the AP/IBSS is started */
2414 if (!mvmvif->ap_ibss_active)
2417 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2418 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2419 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2420 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2422 /* Need to send a new beacon template to the FW */
2423 if (changes & BSS_CHANGED_BEACON &&
2424 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2425 IWL_WARN(mvm, "Failed updating beacon data\n");
2427 if (changes & BSS_CHANGED_TXPOWER) {
2428 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2430 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2435 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2436 struct ieee80211_vif *vif,
2437 struct ieee80211_bss_conf *bss_conf,
2440 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2443 * iwl_mvm_bss_info_changed_station() might call
2444 * iwl_mvm_protect_session(), which reads directly from
2445 * the device (the system time), so make sure it is available.
2447 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2450 mutex_lock(&mvm->mutex);
2452 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2453 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2455 switch (vif->type) {
2456 case NL80211_IFTYPE_STATION:
2457 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2459 case NL80211_IFTYPE_AP:
2460 case NL80211_IFTYPE_ADHOC:
2461 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2464 /* shouldn't happen */
2468 mutex_unlock(&mvm->mutex);
2469 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
2472 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2473 struct ieee80211_vif *vif,
2474 struct ieee80211_scan_request *hw_req)
2476 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2479 if (hw_req->req.n_channels == 0 ||
2480 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2483 mutex_lock(&mvm->mutex);
2484 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2485 mutex_unlock(&mvm->mutex);
2490 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2491 struct ieee80211_vif *vif)
2493 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2495 mutex_lock(&mvm->mutex);
2497 /* Due to a race condition, it's possible that mac80211 asks
2498 * us to stop a hw_scan when it's already stopped. This can
2499 * happen, for instance, if we stopped the scan ourselves,
2500 * called ieee80211_scan_completed() and the userspace called
2501 * cancel scan scan before ieee80211_scan_work() could run.
2502 * To handle that, simply return if the scan is not running.
2504 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2505 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2507 mutex_unlock(&mvm->mutex);
2511 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2512 struct ieee80211_sta *sta, u16 tids,
2514 enum ieee80211_frame_release_type reason,
2517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2519 /* Called when we need to transmit (a) frame(s) from mac80211 */
2521 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2522 tids, more_data, false);
2526 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2527 struct ieee80211_sta *sta, u16 tids,
2529 enum ieee80211_frame_release_type reason,
2532 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2534 /* Called when we need to transmit (a) frame(s) from agg queue */
2536 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2537 tids, more_data, true);
2540 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2541 struct ieee80211_vif *vif,
2542 enum sta_notify_cmd cmd,
2543 struct ieee80211_sta *sta)
2545 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2546 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2547 unsigned long txqs = 0, tids = 0;
2550 spin_lock_bh(&mvmsta->lock);
2551 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2552 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2554 if (tid_data->state != IWL_AGG_ON &&
2555 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2558 __set_bit(tid_data->txq_id, &txqs);
2560 if (iwl_mvm_tid_queued(tid_data) == 0)
2563 __set_bit(tid, &tids);
2567 case STA_NOTIFY_SLEEP:
2568 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
2569 ieee80211_sta_block_awake(hw, sta, true);
2571 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2572 ieee80211_sta_set_buffered(sta, tid, true);
2575 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2577 * The fw updates the STA to be asleep. Tx packets on the Tx
2578 * queues to this station will not be transmitted. The fw will
2579 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2582 case STA_NOTIFY_AWAKE:
2583 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2587 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2588 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2593 spin_unlock_bh(&mvmsta->lock);
2596 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2597 struct ieee80211_vif *vif,
2598 struct ieee80211_sta *sta)
2600 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2601 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2604 * This is called before mac80211 does RCU synchronisation,
2605 * so here we already invalidate our internal RCU-protected
2606 * station pointer. The rest of the code will thus no longer
2607 * be able to find the station this way, and we don't rely
2608 * on further RCU synchronisation after the sta_state()
2609 * callback deleted the station.
2611 mutex_lock(&mvm->mutex);
2612 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2613 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2615 mutex_unlock(&mvm->mutex);
2618 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2621 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2624 if (iwlwifi_mod_params.uapsd_disable) {
2625 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2629 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2632 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2633 struct ieee80211_vif *vif,
2634 struct ieee80211_sta *sta,
2635 enum ieee80211_sta_state old_state,
2636 enum ieee80211_sta_state new_state)
2638 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2639 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2642 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2643 sta->addr, old_state, new_state);
2645 /* this would be a mac80211 bug ... but don't crash */
2646 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2649 /* if a STA is being removed, reuse its ID */
2650 flush_work(&mvm->sta_drained_wk);
2652 mutex_lock(&mvm->mutex);
2653 if (old_state == IEEE80211_STA_NOTEXIST &&
2654 new_state == IEEE80211_STA_NONE) {
2656 * Firmware bug - it'll crash if the beacon interval is less
2657 * than 16. We can't avoid connecting at all, so refuse the
2658 * station state change, this will cause mac80211 to abandon
2659 * attempts to connect to this AP, and eventually wpa_s will
2660 * blacklist the AP...
2662 if (vif->type == NL80211_IFTYPE_STATION &&
2663 vif->bss_conf.beacon_int < 16) {
2665 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2666 sta->addr, vif->bss_conf.beacon_int);
2673 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2674 IWL_MVM_TDLS_STA_COUNT ||
2675 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2676 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2681 ret = iwl_mvm_add_sta(mvm, vif, sta);
2682 if (sta->tdls && ret == 0)
2683 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2684 } else if (old_state == IEEE80211_STA_NONE &&
2685 new_state == IEEE80211_STA_AUTH) {
2687 * EBS may be disabled due to previous failures reported by FW.
2688 * Reset EBS status here assuming environment has been changed.
2690 mvm->last_ebs_successful = true;
2691 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
2693 } else if (old_state == IEEE80211_STA_AUTH &&
2694 new_state == IEEE80211_STA_ASSOC) {
2695 ret = iwl_mvm_update_sta(mvm, vif, sta);
2697 iwl_mvm_rs_rate_init(mvm, sta,
2698 mvmvif->phy_ctxt->channel->band,
2700 } else if (old_state == IEEE80211_STA_ASSOC &&
2701 new_state == IEEE80211_STA_AUTHORIZED) {
2703 /* we don't support TDLS during DCM */
2704 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2705 iwl_mvm_teardown_tdls_peers(mvm);
2707 /* enable beacon filtering */
2708 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2710 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2711 new_state == IEEE80211_STA_ASSOC) {
2712 /* disable beacon filtering */
2713 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2715 } else if (old_state == IEEE80211_STA_ASSOC &&
2716 new_state == IEEE80211_STA_AUTH) {
2718 } else if (old_state == IEEE80211_STA_AUTH &&
2719 new_state == IEEE80211_STA_NONE) {
2721 } else if (old_state == IEEE80211_STA_NONE &&
2722 new_state == IEEE80211_STA_NOTEXIST) {
2723 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2725 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2730 mutex_unlock(&mvm->mutex);
2732 if (sta->tdls && ret == 0) {
2733 if (old_state == IEEE80211_STA_NOTEXIST &&
2734 new_state == IEEE80211_STA_NONE)
2735 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2736 else if (old_state == IEEE80211_STA_NONE &&
2737 new_state == IEEE80211_STA_NOTEXIST)
2738 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2744 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2748 mvm->rts_threshold = value;
2753 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2754 struct ieee80211_vif *vif,
2755 struct ieee80211_sta *sta, u32 changed)
2757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2759 if (vif->type == NL80211_IFTYPE_STATION &&
2760 changed & IEEE80211_RC_NSS_CHANGED)
2761 iwl_mvm_sf_update(mvm, vif, false);
2764 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2765 struct ieee80211_vif *vif, u16 ac,
2766 const struct ieee80211_tx_queue_params *params)
2768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2769 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2771 mvmvif->queue_params[ac] = *params;
2774 * No need to update right away, we'll get BSS_CHANGED_QOS
2775 * The exception is P2P_DEVICE interface which needs immediate update.
2777 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2780 mutex_lock(&mvm->mutex);
2781 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2782 mutex_unlock(&mvm->mutex);
2788 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2789 struct ieee80211_vif *vif)
2791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2792 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2793 200 + vif->bss_conf.beacon_int);
2794 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2795 100 + vif->bss_conf.beacon_int);
2797 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2801 * iwl_mvm_protect_session() reads directly from the device
2802 * (the system time), so make sure it is available.
2804 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2807 mutex_lock(&mvm->mutex);
2808 /* Try really hard to protect the session and hear a beacon */
2809 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2810 mutex_unlock(&mvm->mutex);
2812 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2815 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2816 struct ieee80211_vif *vif,
2817 struct cfg80211_sched_scan_request *req,
2818 struct ieee80211_scan_ies *ies)
2820 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2824 mutex_lock(&mvm->mutex);
2826 if (!vif->bss_conf.idle) {
2831 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
2834 mutex_unlock(&mvm->mutex);
2838 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2839 struct ieee80211_vif *vif)
2841 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2844 mutex_lock(&mvm->mutex);
2846 /* Due to a race condition, it's possible that mac80211 asks
2847 * us to stop a sched_scan when it's already stopped. This
2848 * can happen, for instance, if we stopped the scan ourselves,
2849 * called ieee80211_sched_scan_stopped() and the userspace called
2850 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2851 * could run. To handle this, simply return if the scan is
2854 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
2855 mutex_unlock(&mvm->mutex);
2859 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
2860 mutex_unlock(&mvm->mutex);
2861 iwl_mvm_wait_for_async_handlers(mvm);
2866 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2867 enum set_key_cmd cmd,
2868 struct ieee80211_vif *vif,
2869 struct ieee80211_sta *sta,
2870 struct ieee80211_key_conf *key)
2872 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2875 if (iwlwifi_mod_params.sw_crypto) {
2876 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2880 switch (key->cipher) {
2881 case WLAN_CIPHER_SUITE_TKIP:
2882 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2884 case WLAN_CIPHER_SUITE_CCMP:
2885 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2887 case WLAN_CIPHER_SUITE_AES_CMAC:
2888 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2890 case WLAN_CIPHER_SUITE_WEP40:
2891 case WLAN_CIPHER_SUITE_WEP104:
2892 /* For non-client mode, only use WEP keys for TX as we probably
2893 * don't have a station yet anyway and would then have to keep
2894 * track of the keys, linking them to each of the clients/peers
2895 * as they appear. For now, don't do that, for performance WEP
2896 * offload doesn't really matter much, but we need it for some
2897 * other offload features in client mode.
2899 if (vif->type != NL80211_IFTYPE_STATION)
2903 /* currently FW supports only one optional cipher scheme */
2904 if (hw->n_cipher_schemes &&
2905 hw->cipher_schemes->cipher == key->cipher)
2906 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2911 mutex_lock(&mvm->mutex);
2915 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2916 vif->type == NL80211_IFTYPE_AP) && !sta) {
2918 * GTK on AP interface is a TX-only key, return 0;
2919 * on IBSS they're per-station and because we're lazy
2920 * we don't support them for RX, so do the same.
2923 key->hw_key_idx = STA_KEY_IDX_INVALID;
2927 /* During FW restart, in order to restore the state as it was,
2928 * don't try to reprogram keys we previously failed for.
2930 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2931 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2932 IWL_DEBUG_MAC80211(mvm,
2933 "skip invalid idx key programming during restart\n");
2938 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2939 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2940 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2943 IWL_WARN(mvm, "set key failed\n");
2945 * can't add key for RX, but we don't need it
2946 * in the device for TX so still return 0
2948 key->hw_key_idx = STA_KEY_IDX_INVALID;
2954 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2959 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2960 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2966 mutex_unlock(&mvm->mutex);
2970 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2971 struct ieee80211_vif *vif,
2972 struct ieee80211_key_conf *keyconf,
2973 struct ieee80211_sta *sta,
2974 u32 iv32, u16 *phase1key)
2976 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2978 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2981 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2985 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2986 struct iwl_rx_packet *pkt, void *data)
2988 struct iwl_mvm *mvm =
2989 container_of(notif_wait, struct iwl_mvm, notif_wait);
2990 struct iwl_hs20_roc_res *resp;
2991 int resp_len = iwl_rx_packet_payload_len(pkt);
2992 struct iwl_mvm_time_event_data *te_data = data;
2994 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2997 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2998 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3002 resp = (void *)pkt->data;
3005 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3006 resp->status, resp->event_unique_id);
3008 te_data->uid = le32_to_cpu(resp->event_unique_id);
3009 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3012 spin_lock_bh(&mvm->time_event_lock);
3013 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3014 spin_unlock_bh(&mvm->time_event_lock);
3019 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
3020 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3021 struct ieee80211_channel *channel,
3022 struct ieee80211_vif *vif,
3025 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3026 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3027 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3028 static const u8 time_event_response[] = { HOT_SPOT_CMD };
3029 struct iwl_notification_wait wait_time_event;
3030 struct iwl_hs20_roc_req aux_roc_req = {
3031 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3033 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3034 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3035 /* Set the channel info data */
3036 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3037 PHY_BAND_24 : PHY_BAND_5,
3038 .channel_info.channel = channel->hw_value,
3039 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3040 /* Set the time and duration */
3041 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3042 .apply_time_max_delay =
3043 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3044 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3047 /* Set the node address */
3048 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3050 lockdep_assert_held(&mvm->mutex);
3052 spin_lock_bh(&mvm->time_event_lock);
3054 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3055 spin_unlock_bh(&mvm->time_event_lock);
3060 te_data->duration = duration;
3061 te_data->id = HOT_SPOT_CMD;
3063 spin_unlock_bh(&mvm->time_event_lock);
3066 * Use a notification wait, which really just processes the
3067 * command response and doesn't wait for anything, in order
3068 * to be able to process the response and get the UID inside
3069 * the RX path. Using CMD_WANT_SKB doesn't work because it
3070 * stores the buffer and then wakes up this thread, by which
3071 * time another notification (that the time event started)
3072 * might already be processed unsuccessfully.
3074 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3075 time_event_response,
3076 ARRAY_SIZE(time_event_response),
3077 iwl_mvm_rx_aux_roc, te_data);
3079 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3083 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3084 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3088 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3089 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3090 /* should never fail */
3095 spin_lock_bh(&mvm->time_event_lock);
3096 iwl_mvm_te_clear_data(mvm, te_data);
3097 spin_unlock_bh(&mvm->time_event_lock);
3103 static int iwl_mvm_roc(struct ieee80211_hw *hw,
3104 struct ieee80211_vif *vif,
3105 struct ieee80211_channel *channel,
3107 enum ieee80211_roc_type type)
3109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3110 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3111 struct cfg80211_chan_def chandef;
3112 struct iwl_mvm_phy_ctxt *phy_ctxt;
3115 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3118 flush_work(&mvm->roc_done_wk);
3120 mutex_lock(&mvm->mutex);
3122 switch (vif->type) {
3123 case NL80211_IFTYPE_STATION:
3124 if (fw_has_capa(&mvm->fw->ucode_capa,
3125 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3126 /* Use aux roc framework (HS20) */
3127 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3131 IWL_ERR(mvm, "hotspot not supported\n");
3134 case NL80211_IFTYPE_P2P_DEVICE:
3138 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3143 for (i = 0; i < NUM_PHY_CTX; i++) {
3144 phy_ctxt = &mvm->phy_ctxts[i];
3145 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3148 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3150 * Unbind the P2P_DEVICE from the current PHY context,
3151 * and if the PHY context is not used remove it.
3153 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3154 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3157 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3159 /* Bind the P2P_DEVICE to the current PHY Context */
3160 mvmvif->phy_ctxt = phy_ctxt;
3162 ret = iwl_mvm_binding_add_vif(mvm, vif);
3163 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3166 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3167 goto schedule_time_event;
3171 /* Need to update the PHY context only if the ROC channel changed */
3172 if (channel == mvmvif->phy_ctxt->channel)
3173 goto schedule_time_event;
3175 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3178 * Change the PHY context configuration as it is currently referenced
3179 * only by the P2P Device MAC
3181 if (mvmvif->phy_ctxt->ref == 1) {
3182 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3188 * The PHY context is shared with other MACs. Need to remove the
3189 * P2P Device from the binding, allocate an new PHY context and
3190 * create a new binding
3192 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3198 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3201 IWL_ERR(mvm, "Failed to change PHY context\n");
3205 /* Unbind the P2P_DEVICE from the current PHY context */
3206 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3207 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3210 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3212 /* Bind the P2P_DEVICE to the new allocated PHY context */
3213 mvmvif->phy_ctxt = phy_ctxt;
3215 ret = iwl_mvm_binding_add_vif(mvm, vif);
3216 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3219 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3222 schedule_time_event:
3223 /* Schedule the time events */
3224 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
3227 mutex_unlock(&mvm->mutex);
3228 IWL_DEBUG_MAC80211(mvm, "leave\n");
3232 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3236 IWL_DEBUG_MAC80211(mvm, "enter\n");
3238 mutex_lock(&mvm->mutex);
3239 iwl_mvm_stop_roc(mvm);
3240 mutex_unlock(&mvm->mutex);
3242 IWL_DEBUG_MAC80211(mvm, "leave\n");
3246 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3247 struct ieee80211_chanctx_conf *ctx)
3249 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3250 struct iwl_mvm_phy_ctxt *phy_ctxt;
3253 lockdep_assert_held(&mvm->mutex);
3255 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
3257 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3263 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3264 ctx->rx_chains_static,
3265 ctx->rx_chains_dynamic);
3267 IWL_ERR(mvm, "Failed to add PHY context\n");
3271 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
3272 *phy_ctxt_id = phy_ctxt->id;
3277 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3278 struct ieee80211_chanctx_conf *ctx)
3280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3283 mutex_lock(&mvm->mutex);
3284 ret = __iwl_mvm_add_chanctx(mvm, ctx);
3285 mutex_unlock(&mvm->mutex);
3290 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3291 struct ieee80211_chanctx_conf *ctx)
3293 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3294 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3296 lockdep_assert_held(&mvm->mutex);
3298 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3301 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3302 struct ieee80211_chanctx_conf *ctx)
3304 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3306 mutex_lock(&mvm->mutex);
3307 __iwl_mvm_remove_chanctx(mvm, ctx);
3308 mutex_unlock(&mvm->mutex);
3311 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3312 struct ieee80211_chanctx_conf *ctx,
3315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3316 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3317 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3319 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3320 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3321 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
3322 IEEE80211_CHANCTX_CHANGE_RADAR |
3323 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
3324 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3325 phy_ctxt->ref, changed))
3328 mutex_lock(&mvm->mutex);
3329 iwl_mvm_bt_coex_vif_change(mvm);
3330 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3331 ctx->rx_chains_static,
3332 ctx->rx_chains_dynamic);
3333 mutex_unlock(&mvm->mutex);
3336 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3337 struct ieee80211_vif *vif,
3338 struct ieee80211_chanctx_conf *ctx,
3339 bool switching_chanctx)
3341 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3342 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3343 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3346 lockdep_assert_held(&mvm->mutex);
3348 mvmvif->phy_ctxt = phy_ctxt;
3350 switch (vif->type) {
3351 case NL80211_IFTYPE_AP:
3352 /* only needed if we're switching chanctx (i.e. during CSA) */
3353 if (switching_chanctx) {
3354 mvmvif->ap_ibss_active = true;
3357 case NL80211_IFTYPE_ADHOC:
3359 * The AP binding flow is handled as part of the start_ap flow
3360 * (in bss_info_changed), similarly for IBSS.
3364 case NL80211_IFTYPE_STATION:
3366 case NL80211_IFTYPE_MONITOR:
3367 /* always disable PS when a monitor interface is active */
3368 mvmvif->ps_disabled = true;
3375 ret = iwl_mvm_binding_add_vif(mvm, vif);
3380 * Power state must be updated before quotas,
3381 * otherwise fw will complain.
3383 iwl_mvm_power_update_mac(mvm);
3385 /* Setting the quota at this stage is only required for monitor
3386 * interfaces. For the other types, the bss_info changed flow
3387 * will handle quota settings.
3389 if (vif->type == NL80211_IFTYPE_MONITOR) {
3390 mvmvif->monitor_active = true;
3391 ret = iwl_mvm_update_quotas(mvm, false, NULL);
3393 goto out_remove_binding;
3396 /* Handle binding during CSA */
3397 if (vif->type == NL80211_IFTYPE_AP) {
3398 iwl_mvm_update_quotas(mvm, false, NULL);
3399 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3402 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
3403 u32 duration = 2 * vif->bss_conf.beacon_int;
3405 /* iwl_mvm_protect_session() reads directly from the
3406 * device (the system time), so make sure it is
3409 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3411 goto out_remove_binding;
3413 /* Protect the session to make sure we hear the first
3414 * beacon on the new channel.
3416 iwl_mvm_protect_session(mvm, vif, duration, duration,
3417 vif->bss_conf.beacon_int / 2,
3420 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3422 iwl_mvm_update_quotas(mvm, false, NULL);
3428 iwl_mvm_binding_remove_vif(mvm, vif);
3429 iwl_mvm_power_update_mac(mvm);
3432 mvmvif->phy_ctxt = NULL;
3435 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3436 struct ieee80211_vif *vif,
3437 struct ieee80211_chanctx_conf *ctx)
3439 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3442 mutex_lock(&mvm->mutex);
3443 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
3444 mutex_unlock(&mvm->mutex);
3449 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3450 struct ieee80211_vif *vif,
3451 struct ieee80211_chanctx_conf *ctx,
3452 bool switching_chanctx)
3454 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3455 struct ieee80211_vif *disabled_vif = NULL;
3457 lockdep_assert_held(&mvm->mutex);
3459 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3461 switch (vif->type) {
3462 case NL80211_IFTYPE_ADHOC:
3464 case NL80211_IFTYPE_MONITOR:
3465 mvmvif->monitor_active = false;
3466 mvmvif->ps_disabled = false;
3468 case NL80211_IFTYPE_AP:
3469 /* This part is triggered only during CSA */
3470 if (!switching_chanctx || !mvmvif->ap_ibss_active)
3473 mvmvif->csa_countdown = false;
3475 /* Set CS bit on all the stations */
3476 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3478 /* Save blocked iface, the timeout is set on the next beacon */
3479 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3481 mvmvif->ap_ibss_active = false;
3483 case NL80211_IFTYPE_STATION:
3484 if (!switching_chanctx)
3489 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3495 iwl_mvm_update_quotas(mvm, false, disabled_vif);
3496 iwl_mvm_binding_remove_vif(mvm, vif);
3499 mvmvif->phy_ctxt = NULL;
3500 iwl_mvm_power_update_mac(mvm);
3503 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3504 struct ieee80211_vif *vif,
3505 struct ieee80211_chanctx_conf *ctx)
3507 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3509 mutex_lock(&mvm->mutex);
3510 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3511 mutex_unlock(&mvm->mutex);
3515 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3516 struct ieee80211_vif_chanctx_switch *vifs)
3520 mutex_lock(&mvm->mutex);
3521 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3522 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3524 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3526 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3530 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3534 "failed to assign new_ctx during channel switch\n");
3538 /* we don't support TDLS during DCM - can be caused by channel switch */
3539 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3540 iwl_mvm_teardown_tdls_peers(mvm);
3545 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3548 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3549 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3553 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3555 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3562 /* things keep failing, better restart the hw */
3563 iwl_mvm_nic_restart(mvm, false);
3566 mutex_unlock(&mvm->mutex);
3572 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3573 struct ieee80211_vif_chanctx_switch *vifs)
3577 mutex_lock(&mvm->mutex);
3578 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3580 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3584 "failed to assign new_ctx during channel switch\n");
3591 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3593 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3600 /* things keep failing, better restart the hw */
3601 iwl_mvm_nic_restart(mvm, false);
3604 mutex_unlock(&mvm->mutex);
3609 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3610 struct ieee80211_vif_chanctx_switch *vifs,
3612 enum ieee80211_chanctx_switch_mode mode)
3614 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3617 /* we only support a single-vif right now */
3622 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3623 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3625 case CHANCTX_SWMODE_REASSIGN_VIF:
3626 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3636 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3637 struct ieee80211_sta *sta,
3640 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3641 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3643 if (!mvm_sta || !mvm_sta->vif) {
3644 IWL_ERR(mvm, "Station is not associated to a vif\n");
3648 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3651 #ifdef CONFIG_NL80211_TESTMODE
3652 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3653 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3654 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3655 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3658 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3659 struct ieee80211_vif *vif,
3660 void *data, int len)
3662 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3666 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3670 if (!tb[IWL_MVM_TM_ATTR_CMD])
3673 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3674 case IWL_MVM_TM_CMD_SET_NOA:
3675 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3676 !vif->bss_conf.enable_beacon ||
3677 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3680 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3681 if (noa_duration >= vif->bss_conf.beacon_int)
3684 mvm->noa_duration = noa_duration;
3687 return iwl_mvm_update_quotas(mvm, false, NULL);
3688 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3689 /* must be associated client vif - ignore authorized */
3690 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3691 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3692 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3695 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3696 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3697 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3703 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3704 struct ieee80211_vif *vif,
3705 void *data, int len)
3707 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3710 mutex_lock(&mvm->mutex);
3711 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3712 mutex_unlock(&mvm->mutex);
3718 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3719 struct ieee80211_vif *vif,
3720 struct ieee80211_channel_switch *chsw)
3722 /* By implementing this operation, we prevent mac80211 from
3723 * starting its own channel switch timer, so that we can call
3724 * ieee80211_chswitch_done() ourselves at the right time
3725 * (which is when the absence time event starts).
3728 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3729 "dummy channel switch op\n");
3732 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3733 struct ieee80211_vif *vif,
3734 struct ieee80211_channel_switch *chsw)
3736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3737 struct ieee80211_vif *csa_vif;
3738 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3742 mutex_lock(&mvm->mutex);
3744 mvmvif->csa_failed = false;
3746 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3747 chsw->chandef.center_freq1);
3749 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
3751 switch (vif->type) {
3752 case NL80211_IFTYPE_AP:
3754 rcu_dereference_protected(mvm->csa_vif,
3755 lockdep_is_held(&mvm->mutex));
3756 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3757 "Another CSA is already in progress")) {
3762 rcu_assign_pointer(mvm->csa_vif, vif);
3764 if (WARN_ONCE(mvmvif->csa_countdown,
3765 "Previous CSA countdown didn't complete")) {
3771 case NL80211_IFTYPE_STATION:
3772 /* Schedule the time event to a bit before beacon 1,
3773 * to make sure we're in the new channel when the
3776 apply_time = chsw->device_timestamp +
3777 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3778 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3781 iwl_mvm_csa_client_absent(mvm, vif);
3783 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3785 if (mvmvif->bf_data.bf_enabled) {
3786 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3796 mvmvif->ps_disabled = true;
3798 ret = iwl_mvm_power_update_ps(mvm);
3802 /* we won't be on this channel any longer */
3803 iwl_mvm_teardown_tdls_peers(mvm);
3806 mutex_unlock(&mvm->mutex);
3811 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3812 struct ieee80211_vif *vif)
3814 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3818 mutex_lock(&mvm->mutex);
3820 if (mvmvif->csa_failed) {
3821 mvmvif->csa_failed = false;
3826 if (vif->type == NL80211_IFTYPE_STATION) {
3827 struct iwl_mvm_sta *mvmsta;
3829 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3832 if (WARN_ON(!mvmsta)) {
3837 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3839 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3841 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3845 iwl_mvm_stop_session_protection(mvm, vif);
3848 mvmvif->ps_disabled = false;
3850 ret = iwl_mvm_power_update_ps(mvm);
3853 mutex_unlock(&mvm->mutex);
3858 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3859 struct ieee80211_vif *vif, u32 queues, bool drop)
3861 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3862 struct iwl_mvm_vif *mvmvif;
3863 struct iwl_mvm_sta *mvmsta;
3864 struct ieee80211_sta *sta;
3868 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3871 mutex_lock(&mvm->mutex);
3872 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3874 /* flush the AP-station and all TDLS peers */
3875 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3876 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3877 lockdep_is_held(&mvm->mutex));
3878 if (IS_ERR_OR_NULL(sta))
3881 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3882 if (mvmsta->vif != vif)
3885 /* make sure only TDLS peers or the AP are flushed */
3886 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3888 msk |= mvmsta->tfd_queue_msk;
3892 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3893 IWL_ERR(mvm, "flush request fail\n");
3894 mutex_unlock(&mvm->mutex);
3896 mutex_unlock(&mvm->mutex);
3898 /* this can take a while, and we may need/want other operations
3899 * to succeed while doing this, so do it without the mutex held
3901 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3905 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3906 struct survey_info *survey)
3908 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3911 memset(survey, 0, sizeof(*survey));
3913 /* only support global statistics right now */
3917 if (fw_has_capa(&mvm->fw->ucode_capa,
3918 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3921 mutex_lock(&mvm->mutex);
3923 if (mvm->ucode_loaded) {
3924 ret = iwl_mvm_request_statistics(mvm, false);
3929 survey->filled = SURVEY_INFO_TIME |
3930 SURVEY_INFO_TIME_RX |
3931 SURVEY_INFO_TIME_TX |
3932 SURVEY_INFO_TIME_SCAN;
3933 survey->time = mvm->accu_radio_stats.on_time_rf +
3934 mvm->radio_stats.on_time_rf;
3935 do_div(survey->time, USEC_PER_MSEC);
3937 survey->time_rx = mvm->accu_radio_stats.rx_time +
3938 mvm->radio_stats.rx_time;
3939 do_div(survey->time_rx, USEC_PER_MSEC);
3941 survey->time_tx = mvm->accu_radio_stats.tx_time +
3942 mvm->radio_stats.tx_time;
3943 do_div(survey->time_tx, USEC_PER_MSEC);
3945 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3946 mvm->radio_stats.on_time_scan;
3947 do_div(survey->time_scan, USEC_PER_MSEC);
3951 mutex_unlock(&mvm->mutex);
3955 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3956 struct ieee80211_vif *vif,
3957 struct ieee80211_sta *sta,
3958 struct station_info *sinfo)
3960 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3961 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3962 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3964 if (fw_has_capa(&mvm->fw->ucode_capa,
3965 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3968 /* if beacon filtering isn't on mac80211 does it anyway */
3969 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3972 if (!vif->bss_conf.assoc)
3975 mutex_lock(&mvm->mutex);
3977 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3980 if (iwl_mvm_request_statistics(mvm, false))
3983 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3984 mvmvif->beacon_stats.accu_num_beacons;
3985 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3986 if (mvmvif->beacon_stats.avg_signal) {
3987 /* firmware only reports a value after RXing a few beacons */
3988 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3989 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3992 mutex_unlock(&mvm->mutex);
3995 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3996 struct ieee80211_vif *vif,
3997 const struct ieee80211_event *event)
3999 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
4001 if ((_cnt) && --(_cnt)) \
4003 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
4006 struct iwl_fw_dbg_trigger_tlv *trig;
4007 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
4009 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4012 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4013 trig_mlme = (void *)trig->data;
4014 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4017 if (event->u.mlme.data == ASSOC_EVENT) {
4018 if (event->u.mlme.status == MLME_DENIED)
4019 CHECK_MLME_TRIGGER(mvm, trig, buf,
4020 trig_mlme->stop_assoc_denied,
4021 "DENIED ASSOC: reason %d",
4022 event->u.mlme.reason);
4023 else if (event->u.mlme.status == MLME_TIMEOUT)
4024 CHECK_MLME_TRIGGER(mvm, trig, buf,
4025 trig_mlme->stop_assoc_timeout,
4027 } else if (event->u.mlme.data == AUTH_EVENT) {
4028 if (event->u.mlme.status == MLME_DENIED)
4029 CHECK_MLME_TRIGGER(mvm, trig, buf,
4030 trig_mlme->stop_auth_denied,
4031 "DENIED AUTH: reason %d",
4032 event->u.mlme.reason);
4033 else if (event->u.mlme.status == MLME_TIMEOUT)
4034 CHECK_MLME_TRIGGER(mvm, trig, buf,
4035 trig_mlme->stop_auth_timeout,
4037 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4038 CHECK_MLME_TRIGGER(mvm, trig, buf,
4039 trig_mlme->stop_rx_deauth,
4040 "DEAUTH RX %d", event->u.mlme.reason);
4041 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4042 CHECK_MLME_TRIGGER(mvm, trig, buf,
4043 trig_mlme->stop_tx_deauth,
4044 "DEAUTH TX %d", event->u.mlme.reason);
4046 #undef CHECK_MLME_TRIGGER
4049 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4050 struct ieee80211_vif *vif,
4051 const struct ieee80211_event *event)
4053 struct iwl_fw_dbg_trigger_tlv *trig;
4054 struct iwl_fw_dbg_trigger_ba *ba_trig;
4056 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4059 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4060 ba_trig = (void *)trig->data;
4061 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4064 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4067 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4068 "BAR received from %pM, tid %d, ssn %d",
4069 event->u.ba.sta->addr, event->u.ba.tid,
4074 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4075 struct ieee80211_vif *vif,
4076 const struct ieee80211_event *event)
4078 struct iwl_fw_dbg_trigger_tlv *trig;
4079 struct iwl_fw_dbg_trigger_ba *ba_trig;
4081 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4084 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4085 ba_trig = (void *)trig->data;
4086 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4089 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4092 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4093 "Frame from %pM timed out, tid %d",
4094 event->u.ba.sta->addr, event->u.ba.tid);
4097 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4098 struct ieee80211_vif *vif,
4099 const struct ieee80211_event *event)
4101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4103 switch (event->type) {
4105 iwl_mvm_event_mlme_callback(mvm, vif, event);
4108 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4110 case BA_FRAME_TIMEOUT:
4111 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4118 const struct ieee80211_ops iwl_mvm_hw_ops = {
4119 .tx = iwl_mvm_mac_tx,
4120 .ampdu_action = iwl_mvm_mac_ampdu_action,
4121 .start = iwl_mvm_mac_start,
4122 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
4123 .stop = iwl_mvm_mac_stop,
4124 .add_interface = iwl_mvm_mac_add_interface,
4125 .remove_interface = iwl_mvm_mac_remove_interface,
4126 .config = iwl_mvm_mac_config,
4127 .prepare_multicast = iwl_mvm_prepare_multicast,
4128 .configure_filter = iwl_mvm_configure_filter,
4129 .bss_info_changed = iwl_mvm_bss_info_changed,
4130 .hw_scan = iwl_mvm_mac_hw_scan,
4131 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
4132 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
4133 .sta_state = iwl_mvm_mac_sta_state,
4134 .sta_notify = iwl_mvm_mac_sta_notify,
4135 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
4136 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
4137 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
4138 .sta_rc_update = iwl_mvm_sta_rc_update,
4139 .conf_tx = iwl_mvm_mac_conf_tx,
4140 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
4141 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
4142 .flush = iwl_mvm_mac_flush,
4143 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4144 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
4145 .set_key = iwl_mvm_mac_set_key,
4146 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4147 .remain_on_channel = iwl_mvm_roc,
4148 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
4149 .add_chanctx = iwl_mvm_add_chanctx,
4150 .remove_chanctx = iwl_mvm_remove_chanctx,
4151 .change_chanctx = iwl_mvm_change_chanctx,
4152 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4153 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
4154 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
4156 .start_ap = iwl_mvm_start_ap_ibss,
4157 .stop_ap = iwl_mvm_stop_ap_ibss,
4158 .join_ibss = iwl_mvm_start_ap_ibss,
4159 .leave_ibss = iwl_mvm_stop_ap_ibss,
4161 .set_tim = iwl_mvm_set_tim,
4163 .channel_switch = iwl_mvm_channel_switch,
4164 .pre_channel_switch = iwl_mvm_pre_channel_switch,
4165 .post_channel_switch = iwl_mvm_post_channel_switch,
4167 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4168 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4169 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4171 .event_callback = iwl_mvm_mac_event_callback,
4173 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4175 #ifdef CONFIG_PM_SLEEP
4177 .suspend = iwl_mvm_suspend,
4178 .resume = iwl_mvm_resume,
4179 .set_wakeup = iwl_mvm_set_wakeup,
4180 .set_rekey_data = iwl_mvm_set_rekey_data,
4181 #if IS_ENABLED(CONFIG_IPV6)
4182 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4184 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4186 .get_survey = iwl_mvm_mac_get_survey,
4187 .sta_statistics = iwl_mvm_mac_sta_statistics,