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 "fw-api-scan.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.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 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
306 struct ieee80211_hw *hw = mvm->hw;
309 /* Tell mac80211 our characteristics */
310 hw->flags = IEEE80211_HW_SIGNAL_DBM |
311 IEEE80211_HW_SPECTRUM_MGMT |
312 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
313 IEEE80211_HW_QUEUE_CONTROL |
314 IEEE80211_HW_WANT_MONITOR_VIF |
315 IEEE80211_HW_SUPPORTS_PS |
316 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
317 IEEE80211_HW_AMPDU_AGGREGATION |
318 IEEE80211_HW_TIMING_BEACON_ONLY |
319 IEEE80211_HW_CONNECTION_MONITOR |
320 IEEE80211_HW_CHANCTX_STA_CSA |
321 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
323 hw->queues = mvm->first_agg_queue;
324 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
325 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
326 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
327 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
328 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
329 hw->rate_control_algorithm = "iwl-mvm-rs";
332 * Enable 11w if advertised by firmware and software crypto
333 * is not enabled (as the firmware will interpret some mgmt
334 * packets, so enabling it with software crypto isn't safe)
336 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
337 !iwlwifi_mod_params.sw_crypto)
338 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
340 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
341 !iwlwifi_mod_params.uapsd_disable) {
342 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
343 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
344 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
347 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
348 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
349 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
350 hw->wiphy->features |=
351 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
352 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
355 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
356 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
357 hw->chanctx_data_size = sizeof(u16);
359 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
360 BIT(NL80211_IFTYPE_P2P_CLIENT) |
361 BIT(NL80211_IFTYPE_AP) |
362 BIT(NL80211_IFTYPE_P2P_GO) |
363 BIT(NL80211_IFTYPE_P2P_DEVICE) |
364 BIT(NL80211_IFTYPE_ADHOC);
366 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
367 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
368 REGULATORY_DISABLE_BEACON_HINTS;
370 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
371 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
373 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
375 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
376 hw->wiphy->n_iface_combinations =
377 ARRAY_SIZE(iwl_mvm_iface_combinations);
379 hw->wiphy->max_remain_on_channel_duration = 10000;
380 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
381 /* we can compensate an offset of up to 3 channels = 15 MHz */
382 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
384 /* Extract MAC address */
385 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
386 hw->wiphy->addresses = mvm->addresses;
387 hw->wiphy->n_addresses = 1;
389 /* Extract additional MAC addresses if available */
390 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
391 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
393 for (i = 1; i < num_mac; i++) {
394 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
396 mvm->addresses[i].addr[5]++;
397 hw->wiphy->n_addresses++;
400 iwl_mvm_reset_phy_ctxts(mvm);
402 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
404 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
406 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
407 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
408 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
409 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
410 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
411 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
413 hw->wiphy->hw_version = mvm->trans->hw_id;
415 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
416 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
418 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
420 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
421 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
422 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
423 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
424 /* we create the 802.11 header and zero length SSID IE. */
425 hw->wiphy->max_sched_scan_ie_len =
426 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
429 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
430 NL80211_FEATURE_LOW_PRIORITY_SCAN |
431 NL80211_FEATURE_P2P_GO_OPPPS |
432 NL80211_FEATURE_DYNAMIC_SMPS |
433 NL80211_FEATURE_STATIC_SMPS |
434 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
436 if (mvm->fw->ucode_capa.capa[0] &
437 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
438 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
439 if (mvm->fw->ucode_capa.capa[0] &
440 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
441 hw->wiphy->features |= NL80211_FEATURE_QUIET;
443 if (mvm->fw->ucode_capa.capa[0] &
444 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
445 hw->wiphy->features |=
446 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
448 if (mvm->fw->ucode_capa.capa[0] &
449 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
450 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
452 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
454 /* currently FW API supports only one optional cipher scheme */
455 if (mvm->fw->cs[0].cipher) {
456 mvm->hw->n_cipher_schemes = 1;
457 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
460 #ifdef CONFIG_PM_SLEEP
461 if (iwl_mvm_is_d0i3_supported(mvm) &&
462 device_can_wakeup(mvm->trans->dev)) {
463 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
464 hw->wiphy->wowlan = &mvm->wowlan;
467 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
468 mvm->trans->ops->d3_suspend &&
469 mvm->trans->ops->d3_resume &&
470 device_can_wakeup(mvm->trans->dev)) {
471 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
472 WIPHY_WOWLAN_DISCONNECT |
473 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
474 WIPHY_WOWLAN_RFKILL_RELEASE |
475 WIPHY_WOWLAN_NET_DETECT;
476 if (!iwlwifi_mod_params.sw_crypto)
477 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
478 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
479 WIPHY_WOWLAN_4WAY_HANDSHAKE;
481 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
482 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
483 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
484 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
485 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
486 hw->wiphy->wowlan = &mvm->wowlan;
490 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
491 /* assign default bcast filtering configuration */
492 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
495 ret = iwl_mvm_leds_init(mvm);
499 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
500 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
501 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
504 if (mvm->fw->ucode_capa.capa[0] &
505 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
506 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
507 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
510 ret = ieee80211_register_hw(mvm->hw);
512 iwl_mvm_leds_exit(mvm);
517 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
518 struct ieee80211_sta *sta,
521 struct iwl_mvm_sta *mvmsta;
525 * double check the IN_D0I3 flag both before and after
526 * taking the spinlock, in order to prevent taking
527 * the spinlock when not needed.
529 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
532 spin_lock(&mvm->d0i3_tx_lock);
534 * testing the flag again ensures the skb dequeue
535 * loop (on d0i3 exit) hasn't run yet.
537 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
540 mvmsta = iwl_mvm_sta_from_mac80211(sta);
541 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
542 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
545 __skb_queue_tail(&mvm->d0i3_tx, skb);
546 ieee80211_stop_queues(mvm->hw);
549 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
550 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
554 spin_unlock(&mvm->d0i3_tx_lock);
558 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
559 struct ieee80211_tx_control *control,
562 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
563 struct ieee80211_sta *sta = control->sta;
564 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
565 struct ieee80211_hdr *hdr = (void *)skb->data;
567 if (iwl_mvm_is_radio_killed(mvm)) {
568 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
572 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
573 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
574 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
577 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
578 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
579 ieee80211_is_mgmt(hdr->frame_control) &&
580 !ieee80211_is_deauth(hdr->frame_control) &&
581 !ieee80211_is_disassoc(hdr->frame_control) &&
582 !ieee80211_is_action(hdr->frame_control)))
586 if (iwl_mvm_defer_tx(mvm, sta, skb))
588 if (iwl_mvm_tx_skb(mvm, skb, sta))
593 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
597 ieee80211_free_txskb(hw, skb);
600 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
602 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
607 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
609 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
611 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
614 /* enabled by default */
618 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
619 struct ieee80211_vif *vif,
620 enum ieee80211_ampdu_mlme_action action,
621 struct ieee80211_sta *sta, u16 tid,
622 u16 *ssn, u8 buf_size)
624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
626 bool tx_agg_ref = false;
628 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
629 sta->addr, tid, action);
631 if (!(mvm->nvm_data->sku_cap_11n_enable))
634 /* return from D0i3 before starting a new Tx aggregation */
636 case IEEE80211_AMPDU_TX_START:
637 case IEEE80211_AMPDU_TX_STOP_CONT:
638 case IEEE80211_AMPDU_TX_STOP_FLUSH:
639 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
640 case IEEE80211_AMPDU_TX_OPERATIONAL:
642 * for tx start, wait synchronously until D0i3 exit to
643 * get the correct sequence number for the tid.
644 * additionally, some other ampdu actions use direct
645 * target access, which is not handled automatically
646 * by the trans layer (unlike commands), so wait for
647 * d0i3 exit in these cases as well.
649 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
659 mutex_lock(&mvm->mutex);
662 case IEEE80211_AMPDU_RX_START:
663 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
667 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
669 case IEEE80211_AMPDU_RX_STOP:
670 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
672 case IEEE80211_AMPDU_TX_START:
673 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
677 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
679 case IEEE80211_AMPDU_TX_STOP_CONT:
680 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
682 case IEEE80211_AMPDU_TX_STOP_FLUSH:
683 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
684 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
686 case IEEE80211_AMPDU_TX_OPERATIONAL:
687 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
694 mutex_unlock(&mvm->mutex);
697 * If the tid is marked as started, we won't use it for offloaded
698 * traffic on the next D0i3 entry. It's safe to unref.
701 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
706 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
707 struct ieee80211_vif *vif)
709 struct iwl_mvm *mvm = data;
710 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
712 mvmvif->uploaded = false;
713 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
715 /* does this make sense at all? */
718 spin_lock_bh(&mvm->time_event_lock);
719 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
720 spin_unlock_bh(&mvm->time_event_lock);
722 mvmvif->phy_ctxt = NULL;
723 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
726 static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
727 const void *data, size_t datalen)
729 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
731 ssize_t bytes_read_trans;
733 if (offset < dump_ptrs->op_mode_len) {
734 bytes_read = min_t(ssize_t, count,
735 dump_ptrs->op_mode_len - offset);
736 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
738 offset += bytes_read;
747 if (!dump_ptrs->trans_ptr)
750 offset -= dump_ptrs->op_mode_len;
751 bytes_read_trans = min_t(ssize_t, count,
752 dump_ptrs->trans_ptr->len - offset);
753 memcpy(buffer + bytes_read,
754 (u8 *)dump_ptrs->trans_ptr->data + offset,
757 return bytes_read + bytes_read_trans;
760 static void iwl_mvm_free_coredump(const void *data)
762 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
764 vfree(fw_error_dump->op_mode_ptr);
765 vfree(fw_error_dump->trans_ptr);
766 kfree(fw_error_dump);
769 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
771 struct iwl_fw_error_dump_file *dump_file;
772 struct iwl_fw_error_dump_data *dump_data;
773 struct iwl_fw_error_dump_info *dump_info;
774 struct iwl_fw_error_dump_mem *dump_mem;
775 struct iwl_mvm_dump_ptrs *fw_error_dump;
776 u32 sram_len, sram_ofs;
777 u32 file_len, rxf_len;
780 u32 smem_len = mvm->cfg->smem_len;
782 lockdep_assert_held(&mvm->mutex);
784 /* W/A for 8000 HW family A-step */
785 if (mvm->cfg->smem_len &&
786 mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
787 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
790 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
794 /* SRAM - include stack CCM if driver knows the values for it */
795 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
796 const struct fw_img *img;
798 img = &mvm->fw->img[mvm->cur_ucode];
799 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
800 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
802 sram_ofs = mvm->cfg->dccm_offset;
803 sram_len = mvm->cfg->dccm_len;
806 /* reading buffer size */
807 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
808 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
810 /* the register holds the value divided by 128 */
811 rxf_len = rxf_len << 7;
813 file_len = sizeof(*dump_file) +
814 sizeof(*dump_data) * 3 +
815 sram_len + sizeof(*dump_mem) +
819 /* Make room for the SMEM, if it exists */
821 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
823 dump_file = vzalloc(file_len);
825 kfree(fw_error_dump);
829 fw_error_dump->op_mode_ptr = dump_file;
831 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
832 dump_data = (void *)dump_file->data;
834 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
835 dump_data->len = cpu_to_le32(sizeof(*dump_info));
836 dump_info = (void *) dump_data->data;
837 dump_info->device_family =
838 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
839 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
840 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
841 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
842 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
843 sizeof(dump_info->fw_human_readable));
844 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
845 sizeof(dump_info->dev_human_readable));
846 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
847 sizeof(dump_info->bus_human_readable));
849 dump_data = iwl_fw_error_next_data(dump_data);
850 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
851 dump_data->len = cpu_to_le32(rxf_len);
853 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
854 u32 *rxf = (void *)dump_data->data;
857 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
858 iwl_trans_write_prph(mvm->trans,
859 RXF_LD_FENCE_OFFSET_ADDR,
861 rxf[i] = iwl_trans_read_prph(mvm->trans,
862 RXF_FIFO_RD_FENCE_ADDR);
864 iwl_trans_release_nic_access(mvm->trans, &flags);
867 dump_data = iwl_fw_error_next_data(dump_data);
868 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
869 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
870 dump_mem = (void *)dump_data->data;
871 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
872 dump_mem->offset = cpu_to_le32(sram_ofs);
873 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
877 dump_data = iwl_fw_error_next_data(dump_data);
878 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
879 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
880 dump_mem = (void *)dump_data->data;
881 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
882 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
883 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
884 dump_mem->data, smem_len);
887 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
888 fw_error_dump->op_mode_len = file_len;
889 if (fw_error_dump->trans_ptr)
890 file_len += fw_error_dump->trans_ptr->len;
891 dump_file->file_len = cpu_to_le32(file_len);
893 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
894 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
897 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
899 /* clear the D3 reconfig, we only need it to avoid dumping a
900 * firmware coredump on reconfiguration, we shouldn't do that
901 * on D3->D0 transition
903 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
904 iwl_mvm_fw_error_dump(mvm);
906 /* cleanup all stale references (scan, roc), but keep the
907 * ucode_down ref until reconfig is complete
909 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
911 iwl_trans_stop_device(mvm->trans);
913 mvm->scan_status = IWL_MVM_SCAN_NONE;
914 mvm->ps_disabled = false;
915 mvm->calibrating = false;
917 /* just in case one was running */
918 ieee80211_remain_on_channel_expired(mvm->hw);
920 ieee80211_iterate_active_interfaces_atomic(
921 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
922 iwl_mvm_cleanup_iterator, mvm);
924 mvm->p2p_device_vif = NULL;
925 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
927 iwl_mvm_reset_phy_ctxts(mvm);
928 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
929 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
930 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
931 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
932 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
933 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
934 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
935 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
936 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
938 ieee80211_wake_queues(mvm->hw);
940 /* clear any stale d0i3 state */
941 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
944 mvm->rx_ba_sessions = 0;
947 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
951 lockdep_assert_held(&mvm->mutex);
953 /* Clean up some internal and mac80211 state on restart */
954 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
955 iwl_mvm_restart_cleanup(mvm);
957 ret = iwl_mvm_up(mvm);
959 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
960 /* Something went wrong - we need to finish some cleanup
961 * that normally iwl_mvm_mac_restart_complete() below
964 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
965 iwl_mvm_d0i3_enable_tx(mvm, NULL);
971 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
976 /* Some hw restart cleanups must not hold the mutex */
977 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
979 * Make sure we are out of d0i3. This is needed
980 * to make sure the reference accounting is correct
981 * (and there is no stale d0i3_exit_work).
983 wait_event_timeout(mvm->d0i3_exit_waitq,
984 !test_bit(IWL_MVM_STATUS_IN_D0I3,
989 mutex_lock(&mvm->mutex);
990 ret = __iwl_mvm_mac_start(mvm);
991 mutex_unlock(&mvm->mutex);
996 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1000 mutex_lock(&mvm->mutex);
1002 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1003 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1004 ret = iwl_mvm_update_quotas(mvm, NULL);
1006 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1009 /* allow transport/FW low power modes */
1010 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1013 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1014 * of packets the FW sent out, so we must reconnect.
1016 iwl_mvm_teardown_tdls_peers(mvm);
1018 mutex_unlock(&mvm->mutex);
1021 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1025 if (!iwl_mvm_is_d0i3_supported(mvm))
1028 mutex_lock(&mvm->d0i3_suspend_mutex);
1029 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1030 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1031 &mvm->d0i3_suspend_flags);
1032 mutex_unlock(&mvm->d0i3_suspend_mutex);
1035 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1036 _iwl_mvm_exit_d0i3(mvm);
1039 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1040 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1041 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1044 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
1048 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1049 enum ieee80211_reconfig_type reconfig_type)
1051 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1053 switch (reconfig_type) {
1054 case IEEE80211_RECONFIG_TYPE_RESTART:
1055 iwl_mvm_restart_complete(mvm);
1057 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1058 iwl_mvm_resume_complete(mvm);
1063 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1065 lockdep_assert_held(&mvm->mutex);
1068 * Disallow low power states when the FW is down by taking
1069 * the UCODE_DOWN ref. in case of ongoing hw restart the
1070 * ref is already taken, so don't take it again.
1072 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1073 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1075 /* async_handlers_wk is now blocked */
1078 * The work item could be running or queued if the
1079 * ROC time event stops just as we get here.
1081 cancel_work_sync(&mvm->roc_done_wk);
1083 iwl_trans_stop_device(mvm->trans);
1085 iwl_mvm_async_handlers_purge(mvm);
1086 /* async_handlers_list is empty and will stay empty: HW is stopped */
1088 /* the fw is stopped, the aux sta is dead: clean up driver state */
1089 iwl_mvm_del_aux_sta(mvm);
1092 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1093 * won't be called in this case).
1095 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1097 mvm->ucode_loaded = false;
1100 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1102 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1104 flush_work(&mvm->d0i3_exit_work);
1105 flush_work(&mvm->async_handlers_wk);
1106 flush_work(&mvm->fw_error_dump_wk);
1108 mutex_lock(&mvm->mutex);
1109 __iwl_mvm_mac_stop(mvm);
1110 mutex_unlock(&mvm->mutex);
1113 * The worker might have been waiting for the mutex, let it run and
1114 * discover that its list is now empty.
1116 cancel_work_sync(&mvm->async_handlers_wk);
1119 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1123 lockdep_assert_held(&mvm->mutex);
1125 for (i = 0; i < NUM_PHY_CTX; i++)
1126 if (!mvm->phy_ctxts[i].ref)
1127 return &mvm->phy_ctxts[i];
1129 IWL_ERR(mvm, "No available PHY context\n");
1133 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1136 /* FW is in charge of regulatory enforcement */
1137 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1138 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1139 .pwr_restriction = cpu_to_le16(tx_power),
1142 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1143 sizeof(reduce_txpwr_cmd),
1147 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1148 struct ieee80211_vif *vif)
1150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1151 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1155 * make sure D0i3 exit is completed, otherwise a target access
1156 * during tx queue configuration could be done when still in
1159 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1164 * Not much to do here. The stack will not allow interface
1165 * types or combinations that we didn't advertise, so we
1166 * don't really have to check the types.
1169 mutex_lock(&mvm->mutex);
1171 /* Allocate resources for the MAC context, and add it to the fw */
1172 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1176 /* Counting number of interfaces is needed for legacy PM */
1177 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1181 * The AP binding flow can be done only after the beacon
1182 * template is configured (which happens only in the mac80211
1183 * start_ap() flow), and adding the broadcast station can happen
1184 * only after the binding.
1185 * In addition, since modifying the MAC before adding a bcast
1186 * station is not allowed by the FW, delay the adding of MAC context to
1187 * the point where we can also add the bcast station.
1188 * In short: there's not much we can do at this point, other than
1189 * allocating resources :)
1191 if (vif->type == NL80211_IFTYPE_AP ||
1192 vif->type == NL80211_IFTYPE_ADHOC) {
1193 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1195 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1199 iwl_mvm_vif_dbgfs_register(mvm, vif);
1203 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1207 ret = iwl_mvm_power_update_mac(mvm);
1211 /* beacon filtering */
1212 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1214 goto out_remove_mac;
1216 if (!mvm->bf_allowed_vif &&
1217 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1218 mvm->bf_allowed_vif = mvmvif;
1219 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1220 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1224 * P2P_DEVICE interface does not have a channel context assigned to it,
1225 * so a dedicated PHY context is allocated to it and the corresponding
1226 * MAC context is bound to it at this stage.
1228 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1230 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1231 if (!mvmvif->phy_ctxt) {
1236 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1237 ret = iwl_mvm_binding_add_vif(mvm, vif);
1241 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1245 /* Save a pointer to p2p device vif, so it can later be used to
1246 * update the p2p device MAC when a GO is started/stopped */
1247 mvm->p2p_device_vif = vif;
1250 iwl_mvm_vif_dbgfs_register(mvm, vif);
1254 iwl_mvm_binding_remove_vif(mvm, vif);
1256 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1258 if (mvm->bf_allowed_vif == mvmvif) {
1259 mvm->bf_allowed_vif = NULL;
1260 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1261 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1264 mvmvif->phy_ctxt = NULL;
1265 iwl_mvm_mac_ctxt_remove(mvm, vif);
1267 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1270 iwl_mvm_mac_ctxt_release(mvm, vif);
1272 mutex_unlock(&mvm->mutex);
1274 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1279 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1280 struct ieee80211_vif *vif)
1282 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1285 mutex_lock(&mvm->mutex);
1286 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1287 mutex_unlock(&mvm->mutex);
1290 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1292 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1293 * We assume here that all the packets sent to the OFFCHANNEL
1294 * queue are sent in ROC session.
1296 flush_work(&mvm->roc_done_wk);
1299 * By now, all the AC queues are empty. The AGG queues are
1300 * empty too. We already got all the Tx responses for all the
1301 * packets in the queues. The drain work can have been
1302 * triggered. Flush it.
1304 flush_work(&mvm->sta_drained_wk);
1308 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1309 struct ieee80211_vif *vif)
1311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1312 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1314 iwl_mvm_prepare_mac_removal(mvm, vif);
1316 mutex_lock(&mvm->mutex);
1318 if (mvm->bf_allowed_vif == mvmvif) {
1319 mvm->bf_allowed_vif = NULL;
1320 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1321 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1324 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1327 * For AP/GO interface, the tear down of the resources allocated to the
1328 * interface is be handled as part of the stop_ap flow.
1330 if (vif->type == NL80211_IFTYPE_AP ||
1331 vif->type == NL80211_IFTYPE_ADHOC) {
1332 #ifdef CONFIG_NL80211_TESTMODE
1333 if (vif == mvm->noa_vif) {
1334 mvm->noa_vif = NULL;
1335 mvm->noa_duration = 0;
1338 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1342 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1343 mvm->p2p_device_vif = NULL;
1344 iwl_mvm_rm_bcast_sta(mvm, vif);
1345 iwl_mvm_binding_remove_vif(mvm, vif);
1346 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1347 mvmvif->phy_ctxt = NULL;
1350 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1353 iwl_mvm_power_update_mac(mvm);
1354 iwl_mvm_mac_ctxt_remove(mvm, vif);
1357 iwl_mvm_mac_ctxt_release(mvm, vif);
1358 mutex_unlock(&mvm->mutex);
1361 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1366 struct iwl_mvm_mc_iter_data {
1367 struct iwl_mvm *mvm;
1371 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1372 struct ieee80211_vif *vif)
1374 struct iwl_mvm_mc_iter_data *data = _data;
1375 struct iwl_mvm *mvm = data->mvm;
1376 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1379 /* if we don't have free ports, mcast frames will be dropped */
1380 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1383 if (vif->type != NL80211_IFTYPE_STATION ||
1384 !vif->bss_conf.assoc)
1387 cmd->port_id = data->port_id++;
1388 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1389 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1391 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1393 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1396 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1398 struct iwl_mvm_mc_iter_data iter_data = {
1402 lockdep_assert_held(&mvm->mutex);
1404 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1407 ieee80211_iterate_active_interfaces_atomic(
1408 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1409 iwl_mvm_mc_iface_iterator, &iter_data);
1412 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1413 struct netdev_hw_addr_list *mc_list)
1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1416 struct iwl_mcast_filter_cmd *cmd;
1417 struct netdev_hw_addr *addr;
1422 addr_count = netdev_hw_addr_list_count(mc_list);
1423 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1424 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1428 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1429 cmd = kzalloc(len, GFP_ATOMIC);
1435 return (u64)(unsigned long)cmd;
1438 netdev_hw_addr_list_for_each(addr, mc_list) {
1439 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1440 cmd->count, addr->addr);
1441 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1442 addr->addr, ETH_ALEN);
1446 return (u64)(unsigned long)cmd;
1449 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1450 unsigned int changed_flags,
1451 unsigned int *total_flags,
1454 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1455 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1457 mutex_lock(&mvm->mutex);
1459 /* replace previous configuration */
1460 kfree(mvm->mcast_filter_cmd);
1461 mvm->mcast_filter_cmd = cmd;
1466 iwl_mvm_recalc_multicast(mvm);
1468 mutex_unlock(&mvm->mutex);
1472 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1473 struct iwl_bcast_iter_data {
1474 struct iwl_mvm *mvm;
1475 struct iwl_bcast_filter_cmd *cmd;
1480 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1481 const struct iwl_fw_bcast_filter *in_filter,
1482 struct iwl_fw_bcast_filter *out_filter)
1484 struct iwl_fw_bcast_filter_attr *attr;
1487 memcpy(out_filter, in_filter, sizeof(*out_filter));
1489 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1490 attr = &out_filter->attrs[i];
1495 switch (attr->reserved1) {
1496 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1497 if (vif->bss_conf.arp_addr_cnt != 1) {
1502 attr->val = vif->bss_conf.arp_addr_list[0];
1504 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1505 attr->val = *(__be32 *)&vif->addr[2];
1510 attr->reserved1 = 0;
1511 out_filter->num_attrs++;
1515 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1516 struct ieee80211_vif *vif)
1518 struct iwl_bcast_iter_data *data = _data;
1519 struct iwl_mvm *mvm = data->mvm;
1520 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1521 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1522 struct iwl_fw_bcast_mac *bcast_mac;
1525 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1528 bcast_mac = &cmd->macs[mvmvif->id];
1531 * enable filtering only for associated stations, but not for P2P
1534 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1535 !vif->bss_conf.assoc)
1538 bcast_mac->default_discard = 1;
1540 /* copy all configured filters */
1541 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1543 * Make sure we don't exceed our filters limit.
1544 * if there is still a valid filter to be configured,
1545 * be on the safe side and just allow bcast for this mac.
1547 if (WARN_ON_ONCE(data->current_filter >=
1548 ARRAY_SIZE(cmd->filters))) {
1549 bcast_mac->default_discard = 0;
1550 bcast_mac->attached_filters = 0;
1554 iwl_mvm_set_bcast_filter(vif,
1555 &mvm->bcast_filters[i],
1556 &cmd->filters[data->current_filter]);
1558 /* skip current filter if it contains no attributes */
1559 if (!cmd->filters[data->current_filter].num_attrs)
1562 /* attach the filter to current mac */
1563 bcast_mac->attached_filters |=
1564 cpu_to_le16(BIT(data->current_filter));
1566 data->current_filter++;
1570 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1571 struct iwl_bcast_filter_cmd *cmd)
1573 struct iwl_bcast_iter_data iter_data = {
1578 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1581 memset(cmd, 0, sizeof(*cmd));
1582 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1583 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1585 #ifdef CONFIG_IWLWIFI_DEBUGFS
1586 /* use debugfs filters/macs if override is configured */
1587 if (mvm->dbgfs_bcast_filtering.override) {
1588 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1589 sizeof(cmd->filters));
1590 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1596 /* if no filters are configured, do nothing */
1597 if (!mvm->bcast_filters)
1600 /* configure and attach these filters for each associated sta vif */
1601 ieee80211_iterate_active_interfaces(
1602 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1603 iwl_mvm_bcast_filter_iterator, &iter_data);
1607 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1608 struct ieee80211_vif *vif)
1610 struct iwl_bcast_filter_cmd cmd;
1612 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1615 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1618 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1622 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1623 struct ieee80211_vif *vif)
1629 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1630 struct ieee80211_vif *vif,
1631 struct ieee80211_bss_conf *bss_conf,
1634 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1638 * Re-calculate the tsf id, as the master-slave relations depend on the
1639 * beacon interval, which was not known when the station interface was
1642 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1643 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1646 * If we're not associated yet, take the (new) BSSID before associating
1647 * so the firmware knows. If we're already associated, then use the old
1648 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1649 * branch for disassociation below.
1651 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1652 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1654 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1656 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1658 /* after sending it once, adopt mac80211 data */
1659 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1660 mvmvif->associated = bss_conf->assoc;
1662 if (changes & BSS_CHANGED_ASSOC) {
1663 if (bss_conf->assoc) {
1664 /* add quota for this interface */
1665 ret = iwl_mvm_update_quotas(mvm, NULL);
1667 IWL_ERR(mvm, "failed to update quotas\n");
1671 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1674 * If we're restarting then the firmware will
1675 * obviously have lost synchronisation with
1676 * the AP. It will attempt to synchronise by
1677 * itself, but we can make it more reliable by
1678 * scheduling a session protection time event.
1680 * The firmware needs to receive a beacon to
1681 * catch up with synchronisation, use 110% of
1682 * the beacon interval.
1684 * Set a large maximum delay to allow for more
1685 * than a single interface.
1687 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1688 iwl_mvm_protect_session(mvm, vif, dur, dur,
1692 iwl_mvm_sf_update(mvm, vif, false);
1693 iwl_mvm_power_vif_assoc(mvm, vif);
1695 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1696 iwl_mvm_update_smps(mvm, vif,
1697 IWL_MVM_SMPS_REQ_PROT,
1698 IEEE80211_SMPS_DYNAMIC);
1700 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1702 * If update fails - SF might be running in associated
1703 * mode while disassociated - which is forbidden.
1705 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1706 "Failed to update SF upon disassociation\n");
1708 /* remove AP station now that the MAC is unassoc */
1709 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1711 IWL_ERR(mvm, "failed to remove AP station\n");
1713 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1714 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1715 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1716 /* remove quota for this interface */
1717 ret = iwl_mvm_update_quotas(mvm, NULL);
1719 IWL_ERR(mvm, "failed to update quotas\n");
1722 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1724 /* this will take the cleared BSSID from bss_conf */
1725 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1728 "failed to update MAC %pM (clear after unassoc)\n",
1732 iwl_mvm_recalc_multicast(mvm);
1733 iwl_mvm_configure_bcast_filter(mvm, vif);
1735 /* reset rssi values */
1736 mvmvif->bf_data.ave_beacon_signal = 0;
1738 iwl_mvm_bt_coex_vif_change(mvm);
1739 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1740 IEEE80211_SMPS_AUTOMATIC);
1741 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1743 * We received a beacon _after_ association so
1744 * remove the session protection.
1746 iwl_mvm_remove_time_event(mvm, mvmvif,
1747 &mvmvif->time_event_data);
1750 if (changes & BSS_CHANGED_BEACON_INFO) {
1751 iwl_mvm_sf_update(mvm, vif, false);
1752 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1755 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1756 ret = iwl_mvm_power_update_mac(mvm);
1758 IWL_ERR(mvm, "failed to update power mode\n");
1761 if (changes & BSS_CHANGED_TXPOWER) {
1762 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1764 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1767 if (changes & BSS_CHANGED_CQM) {
1768 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1769 /* reset cqm events tracking */
1770 mvmvif->bf_data.last_cqm_event = 0;
1771 if (mvmvif->bf_data.bf_enabled) {
1772 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1775 "failed to update CQM thresholds\n");
1779 if (changes & BSS_CHANGED_ARP_FILTER) {
1780 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1781 iwl_mvm_configure_bcast_filter(mvm, vif);
1785 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1786 struct ieee80211_vif *vif)
1788 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1789 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1793 * iwl_mvm_mac_ctxt_add() might read directly from the device
1794 * (the system time), so make sure it is available.
1796 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1800 mutex_lock(&mvm->mutex);
1802 /* Send the beacon template */
1803 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1808 * Re-calculate the tsf id, as the master-slave relations depend on the
1809 * beacon interval, which was not known when the AP interface was added.
1811 if (vif->type == NL80211_IFTYPE_AP)
1812 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1814 /* Add the mac context */
1815 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1819 /* Perform the binding */
1820 ret = iwl_mvm_binding_add_vif(mvm, vif);
1824 /* Send the bcast station. At this stage the TBTT and DTIM time events
1825 * are added and applied to the scheduler */
1826 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1830 /* must be set before quota calculations */
1831 mvmvif->ap_ibss_active = true;
1833 /* power updated needs to be done before quotas */
1834 iwl_mvm_power_update_mac(mvm);
1836 ret = iwl_mvm_update_quotas(mvm, NULL);
1838 goto out_quota_failed;
1840 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1841 if (vif->p2p && mvm->p2p_device_vif)
1842 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1844 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1846 iwl_mvm_bt_coex_vif_change(mvm);
1848 /* we don't support TDLS during DCM */
1849 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1850 iwl_mvm_teardown_tdls_peers(mvm);
1852 mutex_unlock(&mvm->mutex);
1856 iwl_mvm_power_update_mac(mvm);
1857 mvmvif->ap_ibss_active = false;
1858 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1860 iwl_mvm_binding_remove_vif(mvm, vif);
1862 iwl_mvm_mac_ctxt_remove(mvm, vif);
1864 mutex_unlock(&mvm->mutex);
1865 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
1869 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1870 struct ieee80211_vif *vif)
1872 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1873 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1875 iwl_mvm_prepare_mac_removal(mvm, vif);
1877 mutex_lock(&mvm->mutex);
1879 /* Handle AP stop while in CSA */
1880 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1881 iwl_mvm_remove_time_event(mvm, mvmvif,
1882 &mvmvif->time_event_data);
1883 RCU_INIT_POINTER(mvm->csa_vif, NULL);
1886 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1887 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1888 mvm->csa_tx_block_bcn_timeout = 0;
1891 mvmvif->ap_ibss_active = false;
1892 mvm->ap_last_beacon_gp2 = 0;
1894 iwl_mvm_bt_coex_vif_change(mvm);
1896 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1898 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1899 if (vif->p2p && mvm->p2p_device_vif)
1900 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1902 iwl_mvm_update_quotas(mvm, NULL);
1903 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1904 iwl_mvm_binding_remove_vif(mvm, vif);
1906 iwl_mvm_power_update_mac(mvm);
1908 iwl_mvm_mac_ctxt_remove(mvm, vif);
1910 mutex_unlock(&mvm->mutex);
1914 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1915 struct ieee80211_vif *vif,
1916 struct ieee80211_bss_conf *bss_conf,
1919 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1921 /* Changes will be applied when the AP/IBSS is started */
1922 if (!mvmvif->ap_ibss_active)
1925 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1926 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
1927 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
1928 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1930 /* Need to send a new beacon template to the FW */
1931 if (changes & BSS_CHANGED_BEACON &&
1932 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1933 IWL_WARN(mvm, "Failed updating beacon data\n");
1935 if (changes & BSS_CHANGED_TXPOWER) {
1936 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1938 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1943 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1944 struct ieee80211_vif *vif,
1945 struct ieee80211_bss_conf *bss_conf,
1948 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1951 * iwl_mvm_bss_info_changed_station() might call
1952 * iwl_mvm_protect_session(), which reads directly from
1953 * the device (the system time), so make sure it is available.
1955 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1958 mutex_lock(&mvm->mutex);
1960 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1961 iwl_mvm_scan_offload_stop(mvm, true);
1963 switch (vif->type) {
1964 case NL80211_IFTYPE_STATION:
1965 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1967 case NL80211_IFTYPE_AP:
1968 case NL80211_IFTYPE_ADHOC:
1969 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1972 /* shouldn't happen */
1976 mutex_unlock(&mvm->mutex);
1977 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
1980 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1981 enum iwl_scan_status scan_type)
1984 bool wait_for_handlers = false;
1986 mutex_lock(&mvm->mutex);
1988 if (mvm->scan_status != scan_type) {
1990 /* make sure there are no pending notifications */
1991 wait_for_handlers = true;
1995 switch (scan_type) {
1996 case IWL_MVM_SCAN_SCHED:
1997 ret = iwl_mvm_scan_offload_stop(mvm, true);
1999 case IWL_MVM_SCAN_OS:
2000 ret = iwl_mvm_cancel_scan(mvm);
2002 case IWL_MVM_SCAN_NONE:
2011 wait_for_handlers = true;
2013 mutex_unlock(&mvm->mutex);
2015 /* make sure we consume the completion notification */
2016 if (wait_for_handlers)
2017 iwl_mvm_wait_for_async_handlers(mvm);
2021 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2022 struct ieee80211_vif *vif,
2023 struct ieee80211_scan_request *hw_req)
2025 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2026 struct cfg80211_scan_request *req = &hw_req->req;
2029 if (req->n_channels == 0 ||
2030 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
2033 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2034 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2039 mutex_lock(&mvm->mutex);
2041 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2046 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2048 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
2049 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
2050 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2051 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
2053 ret = iwl_mvm_scan_request(mvm, vif, req);
2056 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2058 mutex_unlock(&mvm->mutex);
2062 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2063 struct ieee80211_vif *vif)
2065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2067 mutex_lock(&mvm->mutex);
2069 iwl_mvm_cancel_scan(mvm);
2071 mutex_unlock(&mvm->mutex);
2075 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2076 struct ieee80211_sta *sta, u16 tids,
2078 enum ieee80211_frame_release_type reason,
2081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2083 /* Called when we need to transmit (a) frame(s) from mac80211 */
2085 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2086 tids, more_data, false);
2090 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2091 struct ieee80211_sta *sta, u16 tids,
2093 enum ieee80211_frame_release_type reason,
2096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2098 /* Called when we need to transmit (a) frame(s) from agg queue */
2100 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2101 tids, more_data, true);
2104 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2105 struct ieee80211_vif *vif,
2106 enum sta_notify_cmd cmd,
2107 struct ieee80211_sta *sta)
2109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2110 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2114 case STA_NOTIFY_SLEEP:
2115 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
2116 ieee80211_sta_block_awake(hw, sta, true);
2117 spin_lock_bh(&mvmsta->lock);
2118 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2119 struct iwl_mvm_tid_data *tid_data;
2121 tid_data = &mvmsta->tid_data[tid];
2122 if (tid_data->state != IWL_AGG_ON &&
2123 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2125 if (iwl_mvm_tid_queued(tid_data) == 0)
2127 ieee80211_sta_set_buffered(sta, tid, true);
2129 spin_unlock_bh(&mvmsta->lock);
2131 * The fw updates the STA to be asleep. Tx packets on the Tx
2132 * queues to this station will not be transmitted. The fw will
2133 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2136 case STA_NOTIFY_AWAKE:
2137 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2139 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2146 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2147 struct ieee80211_vif *vif,
2148 struct ieee80211_sta *sta)
2150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2151 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2154 * This is called before mac80211 does RCU synchronisation,
2155 * so here we already invalidate our internal RCU-protected
2156 * station pointer. The rest of the code will thus no longer
2157 * be able to find the station this way, and we don't rely
2158 * on further RCU synchronisation after the sta_state()
2159 * callback deleted the station.
2161 mutex_lock(&mvm->mutex);
2162 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2163 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2165 mutex_unlock(&mvm->mutex);
2168 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2169 struct ieee80211_vif *vif,
2170 struct ieee80211_sta *sta,
2171 enum ieee80211_sta_state old_state,
2172 enum ieee80211_sta_state new_state)
2174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2175 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2178 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2179 sta->addr, old_state, new_state);
2181 /* this would be a mac80211 bug ... but don't crash */
2182 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2185 /* if a STA is being removed, reuse its ID */
2186 flush_work(&mvm->sta_drained_wk);
2188 mutex_lock(&mvm->mutex);
2189 if (old_state == IEEE80211_STA_NOTEXIST &&
2190 new_state == IEEE80211_STA_NONE) {
2192 * Firmware bug - it'll crash if the beacon interval is less
2193 * than 16. We can't avoid connecting at all, so refuse the
2194 * station state change, this will cause mac80211 to abandon
2195 * attempts to connect to this AP, and eventually wpa_s will
2196 * blacklist the AP...
2198 if (vif->type == NL80211_IFTYPE_STATION &&
2199 vif->bss_conf.beacon_int < 16) {
2201 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2202 sta->addr, vif->bss_conf.beacon_int);
2209 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2210 IWL_MVM_TDLS_STA_COUNT ||
2211 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2212 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2217 ret = iwl_mvm_add_sta(mvm, vif, sta);
2218 if (sta->tdls && ret == 0)
2219 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2220 } else if (old_state == IEEE80211_STA_NONE &&
2221 new_state == IEEE80211_STA_AUTH) {
2223 * EBS may be disabled due to previous failures reported by FW.
2224 * Reset EBS status here assuming environment has been changed.
2226 mvm->last_ebs_successful = true;
2228 } else if (old_state == IEEE80211_STA_AUTH &&
2229 new_state == IEEE80211_STA_ASSOC) {
2230 ret = iwl_mvm_update_sta(mvm, vif, sta);
2232 iwl_mvm_rs_rate_init(mvm, sta,
2233 mvmvif->phy_ctxt->channel->band,
2235 } else if (old_state == IEEE80211_STA_ASSOC &&
2236 new_state == IEEE80211_STA_AUTHORIZED) {
2238 /* we don't support TDLS during DCM */
2239 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2240 iwl_mvm_teardown_tdls_peers(mvm);
2242 /* enable beacon filtering */
2243 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2245 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2246 new_state == IEEE80211_STA_ASSOC) {
2247 /* disable beacon filtering */
2248 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2250 } else if (old_state == IEEE80211_STA_ASSOC &&
2251 new_state == IEEE80211_STA_AUTH) {
2253 } else if (old_state == IEEE80211_STA_AUTH &&
2254 new_state == IEEE80211_STA_NONE) {
2256 } else if (old_state == IEEE80211_STA_NONE &&
2257 new_state == IEEE80211_STA_NOTEXIST) {
2258 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2260 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2265 mutex_unlock(&mvm->mutex);
2267 if (sta->tdls && ret == 0) {
2268 if (old_state == IEEE80211_STA_NOTEXIST &&
2269 new_state == IEEE80211_STA_NONE)
2270 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2271 else if (old_state == IEEE80211_STA_NONE &&
2272 new_state == IEEE80211_STA_NOTEXIST)
2273 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2279 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2281 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2283 mvm->rts_threshold = value;
2288 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2289 struct ieee80211_vif *vif,
2290 struct ieee80211_sta *sta, u32 changed)
2292 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2294 if (vif->type == NL80211_IFTYPE_STATION &&
2295 changed & IEEE80211_RC_NSS_CHANGED)
2296 iwl_mvm_sf_update(mvm, vif, false);
2299 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2300 struct ieee80211_vif *vif, u16 ac,
2301 const struct ieee80211_tx_queue_params *params)
2303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2304 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2306 mvmvif->queue_params[ac] = *params;
2309 * No need to update right away, we'll get BSS_CHANGED_QOS
2310 * The exception is P2P_DEVICE interface which needs immediate update.
2312 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2315 mutex_lock(&mvm->mutex);
2316 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2317 mutex_unlock(&mvm->mutex);
2323 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2324 struct ieee80211_vif *vif)
2326 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2327 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2328 200 + vif->bss_conf.beacon_int);
2329 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2330 100 + vif->bss_conf.beacon_int);
2332 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2336 * iwl_mvm_protect_session() reads directly from the device
2337 * (the system time), so make sure it is available.
2339 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2342 mutex_lock(&mvm->mutex);
2343 /* Try really hard to protect the session and hear a beacon */
2344 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2345 mutex_unlock(&mvm->mutex);
2347 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2350 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2351 struct ieee80211_vif *vif,
2352 struct cfg80211_sched_scan_request *req,
2353 struct ieee80211_scan_ies *ies)
2355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2358 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2359 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2364 mutex_lock(&mvm->mutex);
2366 /* Newest FW fixes sched scan while connected on another interface */
2367 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2368 if (!vif->bss_conf.idle) {
2372 } else if (!iwl_mvm_is_idle(mvm)) {
2377 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2382 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
2384 mvm->scan_status = IWL_MVM_SCAN_NONE;
2387 mutex_unlock(&mvm->mutex);
2391 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2392 struct ieee80211_vif *vif)
2394 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2397 mutex_lock(&mvm->mutex);
2398 ret = iwl_mvm_scan_offload_stop(mvm, false);
2399 mutex_unlock(&mvm->mutex);
2400 iwl_mvm_wait_for_async_handlers(mvm);
2406 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2407 enum set_key_cmd cmd,
2408 struct ieee80211_vif *vif,
2409 struct ieee80211_sta *sta,
2410 struct ieee80211_key_conf *key)
2412 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2415 if (iwlwifi_mod_params.sw_crypto) {
2416 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2420 switch (key->cipher) {
2421 case WLAN_CIPHER_SUITE_TKIP:
2422 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2424 case WLAN_CIPHER_SUITE_CCMP:
2425 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2427 case WLAN_CIPHER_SUITE_AES_CMAC:
2428 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2430 case WLAN_CIPHER_SUITE_WEP40:
2431 case WLAN_CIPHER_SUITE_WEP104:
2432 /* For non-client mode, only use WEP keys for TX as we probably
2433 * don't have a station yet anyway and would then have to keep
2434 * track of the keys, linking them to each of the clients/peers
2435 * as they appear. For now, don't do that, for performance WEP
2436 * offload doesn't really matter much, but we need it for some
2437 * other offload features in client mode.
2439 if (vif->type != NL80211_IFTYPE_STATION)
2443 /* currently FW supports only one optional cipher scheme */
2444 if (hw->n_cipher_schemes &&
2445 hw->cipher_schemes->cipher == key->cipher)
2446 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2451 mutex_lock(&mvm->mutex);
2455 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2456 vif->type == NL80211_IFTYPE_AP) && !sta) {
2458 * GTK on AP interface is a TX-only key, return 0;
2459 * on IBSS they're per-station and because we're lazy
2460 * we don't support them for RX, so do the same.
2463 key->hw_key_idx = STA_KEY_IDX_INVALID;
2467 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2468 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2470 IWL_WARN(mvm, "set key failed\n");
2472 * can't add key for RX, but we don't need it
2473 * in the device for TX so still return 0
2475 key->hw_key_idx = STA_KEY_IDX_INVALID;
2481 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2486 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2487 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2493 mutex_unlock(&mvm->mutex);
2497 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2498 struct ieee80211_vif *vif,
2499 struct ieee80211_key_conf *keyconf,
2500 struct ieee80211_sta *sta,
2501 u32 iv32, u16 *phase1key)
2503 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2505 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2508 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2512 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2513 struct iwl_rx_packet *pkt, void *data)
2515 struct iwl_mvm *mvm =
2516 container_of(notif_wait, struct iwl_mvm, notif_wait);
2517 struct iwl_hs20_roc_res *resp;
2518 int resp_len = iwl_rx_packet_payload_len(pkt);
2519 struct iwl_mvm_time_event_data *te_data = data;
2521 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2524 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2525 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2529 resp = (void *)pkt->data;
2532 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2533 resp->status, resp->event_unique_id);
2535 te_data->uid = le32_to_cpu(resp->event_unique_id);
2536 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2539 spin_lock_bh(&mvm->time_event_lock);
2540 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2541 spin_unlock_bh(&mvm->time_event_lock);
2546 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2547 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2548 struct ieee80211_channel *channel,
2549 struct ieee80211_vif *vif,
2552 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2554 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2555 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2556 struct iwl_notification_wait wait_time_event;
2557 struct iwl_hs20_roc_req aux_roc_req = {
2558 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2560 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2561 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2562 /* Set the channel info data */
2563 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2564 PHY_BAND_24 : PHY_BAND_5,
2565 .channel_info.channel = channel->hw_value,
2566 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2567 /* Set the time and duration */
2568 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2569 .apply_time_max_delay =
2570 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2571 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2574 /* Set the node address */
2575 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2577 lockdep_assert_held(&mvm->mutex);
2579 spin_lock_bh(&mvm->time_event_lock);
2581 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2582 spin_unlock_bh(&mvm->time_event_lock);
2587 te_data->duration = duration;
2588 te_data->id = HOT_SPOT_CMD;
2590 spin_unlock_bh(&mvm->time_event_lock);
2593 * Use a notification wait, which really just processes the
2594 * command response and doesn't wait for anything, in order
2595 * to be able to process the response and get the UID inside
2596 * the RX path. Using CMD_WANT_SKB doesn't work because it
2597 * stores the buffer and then wakes up this thread, by which
2598 * time another notification (that the time event started)
2599 * might already be processed unsuccessfully.
2601 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2602 time_event_response,
2603 ARRAY_SIZE(time_event_response),
2604 iwl_mvm_rx_aux_roc, te_data);
2606 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2610 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2611 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2615 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2616 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2617 /* should never fail */
2622 spin_lock_bh(&mvm->time_event_lock);
2623 iwl_mvm_te_clear_data(mvm, te_data);
2624 spin_unlock_bh(&mvm->time_event_lock);
2630 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2631 struct ieee80211_vif *vif,
2632 struct ieee80211_channel *channel,
2634 enum ieee80211_roc_type type)
2636 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2637 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2638 struct cfg80211_chan_def chandef;
2639 struct iwl_mvm_phy_ctxt *phy_ctxt;
2642 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2645 mutex_lock(&mvm->mutex);
2647 switch (vif->type) {
2648 case NL80211_IFTYPE_STATION:
2649 if (mvm->fw->ucode_capa.capa[0] &
2650 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
2651 /* Use aux roc framework (HS20) */
2652 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2656 IWL_ERR(mvm, "hotspot not supported\n");
2659 case NL80211_IFTYPE_P2P_DEVICE:
2663 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2668 for (i = 0; i < NUM_PHY_CTX; i++) {
2669 phy_ctxt = &mvm->phy_ctxts[i];
2670 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2673 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2675 * Unbind the P2P_DEVICE from the current PHY context,
2676 * and if the PHY context is not used remove it.
2678 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2679 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2682 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2684 /* Bind the P2P_DEVICE to the current PHY Context */
2685 mvmvif->phy_ctxt = phy_ctxt;
2687 ret = iwl_mvm_binding_add_vif(mvm, vif);
2688 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2691 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2692 goto schedule_time_event;
2696 /* Need to update the PHY context only if the ROC channel changed */
2697 if (channel == mvmvif->phy_ctxt->channel)
2698 goto schedule_time_event;
2700 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2703 * Change the PHY context configuration as it is currently referenced
2704 * only by the P2P Device MAC
2706 if (mvmvif->phy_ctxt->ref == 1) {
2707 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2713 * The PHY context is shared with other MACs. Need to remove the
2714 * P2P Device from the binding, allocate an new PHY context and
2715 * create a new binding
2717 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2723 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2726 IWL_ERR(mvm, "Failed to change PHY context\n");
2730 /* Unbind the P2P_DEVICE from the current PHY context */
2731 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2732 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2735 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2737 /* Bind the P2P_DEVICE to the new allocated PHY context */
2738 mvmvif->phy_ctxt = phy_ctxt;
2740 ret = iwl_mvm_binding_add_vif(mvm, vif);
2741 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2744 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2747 schedule_time_event:
2748 /* Schedule the time events */
2749 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2752 mutex_unlock(&mvm->mutex);
2753 IWL_DEBUG_MAC80211(mvm, "leave\n");
2757 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2759 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2761 IWL_DEBUG_MAC80211(mvm, "enter\n");
2763 mutex_lock(&mvm->mutex);
2764 iwl_mvm_stop_roc(mvm);
2765 mutex_unlock(&mvm->mutex);
2767 IWL_DEBUG_MAC80211(mvm, "leave\n");
2771 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2772 struct ieee80211_chanctx_conf *ctx)
2774 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2775 struct iwl_mvm_phy_ctxt *phy_ctxt;
2778 lockdep_assert_held(&mvm->mutex);
2780 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2782 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2788 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2789 ctx->rx_chains_static,
2790 ctx->rx_chains_dynamic);
2792 IWL_ERR(mvm, "Failed to add PHY context\n");
2796 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2797 *phy_ctxt_id = phy_ctxt->id;
2802 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2803 struct ieee80211_chanctx_conf *ctx)
2805 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2808 mutex_lock(&mvm->mutex);
2809 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2810 mutex_unlock(&mvm->mutex);
2815 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2816 struct ieee80211_chanctx_conf *ctx)
2818 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2819 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2821 lockdep_assert_held(&mvm->mutex);
2823 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2826 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2827 struct ieee80211_chanctx_conf *ctx)
2829 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2831 mutex_lock(&mvm->mutex);
2832 __iwl_mvm_remove_chanctx(mvm, ctx);
2833 mutex_unlock(&mvm->mutex);
2836 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2837 struct ieee80211_chanctx_conf *ctx,
2840 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2841 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2842 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2844 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2845 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2846 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2847 IEEE80211_CHANCTX_CHANGE_RADAR |
2848 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2849 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2850 phy_ctxt->ref, changed))
2853 mutex_lock(&mvm->mutex);
2854 iwl_mvm_bt_coex_vif_change(mvm);
2855 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2856 ctx->rx_chains_static,
2857 ctx->rx_chains_dynamic);
2858 mutex_unlock(&mvm->mutex);
2861 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2862 struct ieee80211_vif *vif,
2863 struct ieee80211_chanctx_conf *ctx,
2864 bool switching_chanctx)
2866 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2867 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2868 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2871 lockdep_assert_held(&mvm->mutex);
2873 mvmvif->phy_ctxt = phy_ctxt;
2875 switch (vif->type) {
2876 case NL80211_IFTYPE_AP:
2877 /* only needed if we're switching chanctx (i.e. during CSA) */
2878 if (switching_chanctx) {
2879 mvmvif->ap_ibss_active = true;
2882 case NL80211_IFTYPE_ADHOC:
2884 * The AP binding flow is handled as part of the start_ap flow
2885 * (in bss_info_changed), similarly for IBSS.
2889 case NL80211_IFTYPE_STATION:
2891 case NL80211_IFTYPE_MONITOR:
2892 /* always disable PS when a monitor interface is active */
2893 mvmvif->ps_disabled = true;
2900 ret = iwl_mvm_binding_add_vif(mvm, vif);
2905 * Power state must be updated before quotas,
2906 * otherwise fw will complain.
2908 iwl_mvm_power_update_mac(mvm);
2910 /* Setting the quota at this stage is only required for monitor
2911 * interfaces. For the other types, the bss_info changed flow
2912 * will handle quota settings.
2914 if (vif->type == NL80211_IFTYPE_MONITOR) {
2915 mvmvif->monitor_active = true;
2916 ret = iwl_mvm_update_quotas(mvm, NULL);
2918 goto out_remove_binding;
2921 /* Handle binding during CSA */
2922 if (vif->type == NL80211_IFTYPE_AP) {
2923 iwl_mvm_update_quotas(mvm, NULL);
2924 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2927 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
2928 u32 duration = 2 * vif->bss_conf.beacon_int;
2930 /* iwl_mvm_protect_session() reads directly from the
2931 * device (the system time), so make sure it is
2934 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
2936 goto out_remove_binding;
2938 /* Protect the session to make sure we hear the first
2939 * beacon on the new channel.
2941 iwl_mvm_protect_session(mvm, vif, duration, duration,
2942 vif->bss_conf.beacon_int / 2,
2945 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
2947 iwl_mvm_update_quotas(mvm, NULL);
2953 iwl_mvm_binding_remove_vif(mvm, vif);
2954 iwl_mvm_power_update_mac(mvm);
2957 mvmvif->phy_ctxt = NULL;
2960 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2961 struct ieee80211_vif *vif,
2962 struct ieee80211_chanctx_conf *ctx)
2964 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2967 mutex_lock(&mvm->mutex);
2968 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
2969 mutex_unlock(&mvm->mutex);
2974 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2975 struct ieee80211_vif *vif,
2976 struct ieee80211_chanctx_conf *ctx,
2977 bool switching_chanctx)
2979 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2980 struct ieee80211_vif *disabled_vif = NULL;
2982 lockdep_assert_held(&mvm->mutex);
2984 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2986 switch (vif->type) {
2987 case NL80211_IFTYPE_ADHOC:
2989 case NL80211_IFTYPE_MONITOR:
2990 mvmvif->monitor_active = false;
2991 mvmvif->ps_disabled = false;
2993 case NL80211_IFTYPE_AP:
2994 /* This part is triggered only during CSA */
2995 if (!switching_chanctx || !mvmvif->ap_ibss_active)
2998 mvmvif->csa_countdown = false;
3000 /* Set CS bit on all the stations */
3001 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3003 /* Save blocked iface, the timeout is set on the next beacon */
3004 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3006 mvmvif->ap_ibss_active = false;
3008 case NL80211_IFTYPE_STATION:
3009 if (!switching_chanctx)
3014 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3020 iwl_mvm_update_quotas(mvm, disabled_vif);
3021 iwl_mvm_binding_remove_vif(mvm, vif);
3024 mvmvif->phy_ctxt = NULL;
3025 iwl_mvm_power_update_mac(mvm);
3028 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3029 struct ieee80211_vif *vif,
3030 struct ieee80211_chanctx_conf *ctx)
3032 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3034 mutex_lock(&mvm->mutex);
3035 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3036 mutex_unlock(&mvm->mutex);
3040 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3041 struct ieee80211_vif_chanctx_switch *vifs)
3045 mutex_lock(&mvm->mutex);
3046 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3047 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3049 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3051 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3055 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3059 "failed to assign new_ctx during channel switch\n");
3063 /* we don't support TDLS during DCM - can be caused by channel switch */
3064 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3065 iwl_mvm_teardown_tdls_peers(mvm);
3070 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3073 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3074 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3078 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3080 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3087 /* things keep failing, better restart the hw */
3088 iwl_mvm_nic_restart(mvm, false);
3091 mutex_unlock(&mvm->mutex);
3097 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3098 struct ieee80211_vif_chanctx_switch *vifs)
3102 mutex_lock(&mvm->mutex);
3103 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3105 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3109 "failed to assign new_ctx during channel switch\n");
3116 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3118 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3125 /* things keep failing, better restart the hw */
3126 iwl_mvm_nic_restart(mvm, false);
3129 mutex_unlock(&mvm->mutex);
3134 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3135 struct ieee80211_vif_chanctx_switch *vifs,
3137 enum ieee80211_chanctx_switch_mode mode)
3139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3142 /* we only support a single-vif right now */
3147 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3148 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3150 case CHANCTX_SWMODE_REASSIGN_VIF:
3151 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3161 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3162 struct ieee80211_sta *sta,
3165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3166 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3168 if (!mvm_sta || !mvm_sta->vif) {
3169 IWL_ERR(mvm, "Station is not associated to a vif\n");
3173 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3176 #ifdef CONFIG_NL80211_TESTMODE
3177 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3178 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3179 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3180 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3183 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3184 struct ieee80211_vif *vif,
3185 void *data, int len)
3187 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3191 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3195 if (!tb[IWL_MVM_TM_ATTR_CMD])
3198 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3199 case IWL_MVM_TM_CMD_SET_NOA:
3200 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3201 !vif->bss_conf.enable_beacon ||
3202 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3205 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3206 if (noa_duration >= vif->bss_conf.beacon_int)
3209 mvm->noa_duration = noa_duration;
3212 return iwl_mvm_update_quotas(mvm, NULL);
3213 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3214 /* must be associated client vif - ignore authorized */
3215 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3216 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3217 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3220 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3221 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3222 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3228 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3229 struct ieee80211_vif *vif,
3230 void *data, int len)
3232 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3235 mutex_lock(&mvm->mutex);
3236 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3237 mutex_unlock(&mvm->mutex);
3243 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3244 struct ieee80211_vif *vif,
3245 struct ieee80211_channel_switch *chsw)
3247 /* By implementing this operation, we prevent mac80211 from
3248 * starting its own channel switch timer, so that we can call
3249 * ieee80211_chswitch_done() ourselves at the right time
3250 * (which is when the absence time event starts).
3253 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3254 "dummy channel switch op\n");
3257 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3258 struct ieee80211_vif *vif,
3259 struct ieee80211_channel_switch *chsw)
3261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3262 struct ieee80211_vif *csa_vif;
3263 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3267 mutex_lock(&mvm->mutex);
3269 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3270 chsw->chandef.center_freq1);
3272 switch (vif->type) {
3273 case NL80211_IFTYPE_AP:
3275 rcu_dereference_protected(mvm->csa_vif,
3276 lockdep_is_held(&mvm->mutex));
3277 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3278 "Another CSA is already in progress")) {
3283 rcu_assign_pointer(mvm->csa_vif, vif);
3285 if (WARN_ONCE(mvmvif->csa_countdown,
3286 "Previous CSA countdown didn't complete")) {
3292 case NL80211_IFTYPE_STATION:
3293 /* Schedule the time event to a bit before beacon 1,
3294 * to make sure we're in the new channel when the
3297 apply_time = chsw->device_timestamp +
3298 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3299 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3302 iwl_mvm_csa_client_absent(mvm, vif);
3304 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3306 if (mvmvif->bf_data.bf_enabled) {
3307 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3317 mvmvif->ps_disabled = true;
3319 ret = iwl_mvm_power_update_ps(mvm);
3323 /* we won't be on this channel any longer */
3324 iwl_mvm_teardown_tdls_peers(mvm);
3327 mutex_unlock(&mvm->mutex);
3332 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3333 struct ieee80211_vif *vif)
3335 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3336 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3339 mutex_lock(&mvm->mutex);
3341 if (vif->type == NL80211_IFTYPE_STATION) {
3342 struct iwl_mvm_sta *mvmsta;
3344 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3347 if (WARN_ON(!mvmsta)) {
3352 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3354 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3356 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3360 iwl_mvm_stop_session_protection(mvm, vif);
3363 mvmvif->ps_disabled = false;
3365 ret = iwl_mvm_power_update_ps(mvm);
3368 mutex_unlock(&mvm->mutex);
3373 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3374 struct ieee80211_vif *vif, u32 queues, bool drop)
3376 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3377 struct iwl_mvm_vif *mvmvif;
3378 struct iwl_mvm_sta *mvmsta;
3379 struct ieee80211_sta *sta;
3383 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3386 mutex_lock(&mvm->mutex);
3387 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3389 /* flush the AP-station and all TDLS peers */
3390 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3391 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3392 lockdep_is_held(&mvm->mutex));
3393 if (IS_ERR_OR_NULL(sta))
3396 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3397 if (mvmsta->vif != vif)
3400 /* make sure only TDLS peers or the AP are flushed */
3401 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3403 msk |= mvmsta->tfd_queue_msk;
3407 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3408 IWL_ERR(mvm, "flush request fail\n");
3409 mutex_unlock(&mvm->mutex);
3411 mutex_unlock(&mvm->mutex);
3413 /* this can take a while, and we may need/want other operations
3414 * to succeed while doing this, so do it without the mutex held
3416 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3420 const struct ieee80211_ops iwl_mvm_hw_ops = {
3421 .tx = iwl_mvm_mac_tx,
3422 .ampdu_action = iwl_mvm_mac_ampdu_action,
3423 .start = iwl_mvm_mac_start,
3424 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
3425 .stop = iwl_mvm_mac_stop,
3426 .add_interface = iwl_mvm_mac_add_interface,
3427 .remove_interface = iwl_mvm_mac_remove_interface,
3428 .config = iwl_mvm_mac_config,
3429 .prepare_multicast = iwl_mvm_prepare_multicast,
3430 .configure_filter = iwl_mvm_configure_filter,
3431 .bss_info_changed = iwl_mvm_bss_info_changed,
3432 .hw_scan = iwl_mvm_mac_hw_scan,
3433 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3434 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3435 .sta_state = iwl_mvm_mac_sta_state,
3436 .sta_notify = iwl_mvm_mac_sta_notify,
3437 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3438 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3439 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3440 .sta_rc_update = iwl_mvm_sta_rc_update,
3441 .conf_tx = iwl_mvm_mac_conf_tx,
3442 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3443 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3444 .flush = iwl_mvm_mac_flush,
3445 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3446 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3447 .set_key = iwl_mvm_mac_set_key,
3448 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3449 .remain_on_channel = iwl_mvm_roc,
3450 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3451 .add_chanctx = iwl_mvm_add_chanctx,
3452 .remove_chanctx = iwl_mvm_remove_chanctx,
3453 .change_chanctx = iwl_mvm_change_chanctx,
3454 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3455 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3456 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3458 .start_ap = iwl_mvm_start_ap_ibss,
3459 .stop_ap = iwl_mvm_stop_ap_ibss,
3460 .join_ibss = iwl_mvm_start_ap_ibss,
3461 .leave_ibss = iwl_mvm_stop_ap_ibss,
3463 .set_tim = iwl_mvm_set_tim,
3465 .channel_switch = iwl_mvm_channel_switch,
3466 .pre_channel_switch = iwl_mvm_pre_channel_switch,
3467 .post_channel_switch = iwl_mvm_post_channel_switch,
3469 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3470 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3471 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3473 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3475 #ifdef CONFIG_PM_SLEEP
3477 .suspend = iwl_mvm_suspend,
3478 .resume = iwl_mvm_resume,
3479 .set_wakeup = iwl_mvm_set_wakeup,
3480 .set_rekey_data = iwl_mvm_set_rekey_data,
3481 #if IS_ENABLED(CONFIG_IPV6)
3482 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3484 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,