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 iwl_trans_stop_device(mvm->trans);
908 mvm->scan_status = IWL_MVM_SCAN_NONE;
909 mvm->ps_disabled = false;
910 mvm->calibrating = false;
912 /* just in case one was running */
913 ieee80211_remain_on_channel_expired(mvm->hw);
915 ieee80211_iterate_active_interfaces_atomic(
916 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
917 iwl_mvm_cleanup_iterator, mvm);
919 mvm->p2p_device_vif = NULL;
920 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
922 iwl_mvm_reset_phy_ctxts(mvm);
923 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
924 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
925 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
926 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
927 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
928 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
929 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
930 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
931 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
933 ieee80211_wake_queues(mvm->hw);
935 /* cleanup all stale references (scan, roc), but keep the
936 * ucode_down ref until reconfig is complete */
937 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
939 /* clear any stale d0i3 state */
940 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
943 mvm->rx_ba_sessions = 0;
946 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
950 lockdep_assert_held(&mvm->mutex);
952 /* Clean up some internal and mac80211 state on restart */
953 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
954 iwl_mvm_restart_cleanup(mvm);
956 ret = iwl_mvm_up(mvm);
958 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
959 /* Something went wrong - we need to finish some cleanup
960 * that normally iwl_mvm_mac_restart_complete() below
963 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
964 iwl_mvm_d0i3_enable_tx(mvm, NULL);
970 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
975 /* Some hw restart cleanups must not hold the mutex */
976 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
978 * Make sure we are out of d0i3. This is needed
979 * to make sure the reference accounting is correct
980 * (and there is no stale d0i3_exit_work).
982 wait_event_timeout(mvm->d0i3_exit_waitq,
983 !test_bit(IWL_MVM_STATUS_IN_D0I3,
988 mutex_lock(&mvm->mutex);
989 ret = __iwl_mvm_mac_start(mvm);
990 mutex_unlock(&mvm->mutex);
995 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
999 mutex_lock(&mvm->mutex);
1001 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1002 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1003 ret = iwl_mvm_update_quotas(mvm, NULL);
1005 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1008 /* allow transport/FW low power modes */
1009 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1012 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1013 * of packets the FW sent out, so we must reconnect.
1015 iwl_mvm_teardown_tdls_peers(mvm);
1017 mutex_unlock(&mvm->mutex);
1020 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1024 if (!iwl_mvm_is_d0i3_supported(mvm))
1027 mutex_lock(&mvm->d0i3_suspend_mutex);
1028 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1029 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1030 &mvm->d0i3_suspend_flags);
1031 mutex_unlock(&mvm->d0i3_suspend_mutex);
1034 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1035 _iwl_mvm_exit_d0i3(mvm);
1038 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1039 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1040 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1043 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
1047 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1048 enum ieee80211_reconfig_type reconfig_type)
1050 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1052 switch (reconfig_type) {
1053 case IEEE80211_RECONFIG_TYPE_RESTART:
1054 iwl_mvm_restart_complete(mvm);
1056 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1057 iwl_mvm_resume_complete(mvm);
1062 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1064 lockdep_assert_held(&mvm->mutex);
1066 /* disallow low power states when the FW is down */
1067 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1069 /* async_handlers_wk is now blocked */
1072 * The work item could be running or queued if the
1073 * ROC time event stops just as we get here.
1075 cancel_work_sync(&mvm->roc_done_wk);
1077 iwl_trans_stop_device(mvm->trans);
1079 iwl_mvm_async_handlers_purge(mvm);
1080 /* async_handlers_list is empty and will stay empty: HW is stopped */
1082 /* the fw is stopped, the aux sta is dead: clean up driver state */
1083 iwl_mvm_del_aux_sta(mvm);
1085 mvm->ucode_loaded = false;
1088 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1092 flush_work(&mvm->d0i3_exit_work);
1093 flush_work(&mvm->async_handlers_wk);
1094 flush_work(&mvm->fw_error_dump_wk);
1096 mutex_lock(&mvm->mutex);
1097 __iwl_mvm_mac_stop(mvm);
1098 mutex_unlock(&mvm->mutex);
1101 * The worker might have been waiting for the mutex, let it run and
1102 * discover that its list is now empty.
1104 cancel_work_sync(&mvm->async_handlers_wk);
1107 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1111 lockdep_assert_held(&mvm->mutex);
1113 for (i = 0; i < NUM_PHY_CTX; i++)
1114 if (!mvm->phy_ctxts[i].ref)
1115 return &mvm->phy_ctxts[i];
1117 IWL_ERR(mvm, "No available PHY context\n");
1121 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1124 /* FW is in charge of regulatory enforcement */
1125 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1126 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1127 .pwr_restriction = cpu_to_le16(tx_power),
1130 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1131 sizeof(reduce_txpwr_cmd),
1135 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1136 struct ieee80211_vif *vif)
1138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1139 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1143 * make sure D0i3 exit is completed, otherwise a target access
1144 * during tx queue configuration could be done when still in
1147 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1152 * Not much to do here. The stack will not allow interface
1153 * types or combinations that we didn't advertise, so we
1154 * don't really have to check the types.
1157 mutex_lock(&mvm->mutex);
1159 /* Allocate resources for the MAC context, and add it to the fw */
1160 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1164 /* Counting number of interfaces is needed for legacy PM */
1165 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1169 * The AP binding flow can be done only after the beacon
1170 * template is configured (which happens only in the mac80211
1171 * start_ap() flow), and adding the broadcast station can happen
1172 * only after the binding.
1173 * In addition, since modifying the MAC before adding a bcast
1174 * station is not allowed by the FW, delay the adding of MAC context to
1175 * the point where we can also add the bcast station.
1176 * In short: there's not much we can do at this point, other than
1177 * allocating resources :)
1179 if (vif->type == NL80211_IFTYPE_AP ||
1180 vif->type == NL80211_IFTYPE_ADHOC) {
1181 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1183 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1187 iwl_mvm_vif_dbgfs_register(mvm, vif);
1191 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1195 ret = iwl_mvm_power_update_mac(mvm);
1199 /* beacon filtering */
1200 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1202 goto out_remove_mac;
1204 if (!mvm->bf_allowed_vif &&
1205 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1206 mvm->bf_allowed_vif = mvmvif;
1207 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1208 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1212 * P2P_DEVICE interface does not have a channel context assigned to it,
1213 * so a dedicated PHY context is allocated to it and the corresponding
1214 * MAC context is bound to it at this stage.
1216 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1218 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1219 if (!mvmvif->phy_ctxt) {
1224 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1225 ret = iwl_mvm_binding_add_vif(mvm, vif);
1229 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1233 /* Save a pointer to p2p device vif, so it can later be used to
1234 * update the p2p device MAC when a GO is started/stopped */
1235 mvm->p2p_device_vif = vif;
1238 iwl_mvm_vif_dbgfs_register(mvm, vif);
1242 iwl_mvm_binding_remove_vif(mvm, vif);
1244 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1246 if (mvm->bf_allowed_vif == mvmvif) {
1247 mvm->bf_allowed_vif = NULL;
1248 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1249 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1252 mvmvif->phy_ctxt = NULL;
1253 iwl_mvm_mac_ctxt_remove(mvm, vif);
1255 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1258 iwl_mvm_mac_ctxt_release(mvm, vif);
1260 mutex_unlock(&mvm->mutex);
1262 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1267 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1268 struct ieee80211_vif *vif)
1270 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1273 mutex_lock(&mvm->mutex);
1274 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1275 mutex_unlock(&mvm->mutex);
1278 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1280 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1281 * We assume here that all the packets sent to the OFFCHANNEL
1282 * queue are sent in ROC session.
1284 flush_work(&mvm->roc_done_wk);
1287 * By now, all the AC queues are empty. The AGG queues are
1288 * empty too. We already got all the Tx responses for all the
1289 * packets in the queues. The drain work can have been
1290 * triggered. Flush it.
1292 flush_work(&mvm->sta_drained_wk);
1296 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1297 struct ieee80211_vif *vif)
1299 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1302 iwl_mvm_prepare_mac_removal(mvm, vif);
1304 mutex_lock(&mvm->mutex);
1306 if (mvm->bf_allowed_vif == mvmvif) {
1307 mvm->bf_allowed_vif = NULL;
1308 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1309 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1312 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1315 * For AP/GO interface, the tear down of the resources allocated to the
1316 * interface is be handled as part of the stop_ap flow.
1318 if (vif->type == NL80211_IFTYPE_AP ||
1319 vif->type == NL80211_IFTYPE_ADHOC) {
1320 #ifdef CONFIG_NL80211_TESTMODE
1321 if (vif == mvm->noa_vif) {
1322 mvm->noa_vif = NULL;
1323 mvm->noa_duration = 0;
1326 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1330 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1331 mvm->p2p_device_vif = NULL;
1332 iwl_mvm_rm_bcast_sta(mvm, vif);
1333 iwl_mvm_binding_remove_vif(mvm, vif);
1334 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1335 mvmvif->phy_ctxt = NULL;
1338 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1341 iwl_mvm_power_update_mac(mvm);
1342 iwl_mvm_mac_ctxt_remove(mvm, vif);
1345 iwl_mvm_mac_ctxt_release(mvm, vif);
1346 mutex_unlock(&mvm->mutex);
1349 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1354 struct iwl_mvm_mc_iter_data {
1355 struct iwl_mvm *mvm;
1359 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1360 struct ieee80211_vif *vif)
1362 struct iwl_mvm_mc_iter_data *data = _data;
1363 struct iwl_mvm *mvm = data->mvm;
1364 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1367 /* if we don't have free ports, mcast frames will be dropped */
1368 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1371 if (vif->type != NL80211_IFTYPE_STATION ||
1372 !vif->bss_conf.assoc)
1375 cmd->port_id = data->port_id++;
1376 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1377 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1379 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1381 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1384 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1386 struct iwl_mvm_mc_iter_data iter_data = {
1390 lockdep_assert_held(&mvm->mutex);
1392 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1395 ieee80211_iterate_active_interfaces_atomic(
1396 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1397 iwl_mvm_mc_iface_iterator, &iter_data);
1400 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1401 struct netdev_hw_addr_list *mc_list)
1403 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1404 struct iwl_mcast_filter_cmd *cmd;
1405 struct netdev_hw_addr *addr;
1410 addr_count = netdev_hw_addr_list_count(mc_list);
1411 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1412 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1416 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1417 cmd = kzalloc(len, GFP_ATOMIC);
1423 return (u64)(unsigned long)cmd;
1426 netdev_hw_addr_list_for_each(addr, mc_list) {
1427 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1428 cmd->count, addr->addr);
1429 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1430 addr->addr, ETH_ALEN);
1434 return (u64)(unsigned long)cmd;
1437 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1438 unsigned int changed_flags,
1439 unsigned int *total_flags,
1442 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1443 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1445 mutex_lock(&mvm->mutex);
1447 /* replace previous configuration */
1448 kfree(mvm->mcast_filter_cmd);
1449 mvm->mcast_filter_cmd = cmd;
1454 iwl_mvm_recalc_multicast(mvm);
1456 mutex_unlock(&mvm->mutex);
1460 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1461 struct iwl_bcast_iter_data {
1462 struct iwl_mvm *mvm;
1463 struct iwl_bcast_filter_cmd *cmd;
1468 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1469 const struct iwl_fw_bcast_filter *in_filter,
1470 struct iwl_fw_bcast_filter *out_filter)
1472 struct iwl_fw_bcast_filter_attr *attr;
1475 memcpy(out_filter, in_filter, sizeof(*out_filter));
1477 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1478 attr = &out_filter->attrs[i];
1483 switch (attr->reserved1) {
1484 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1485 if (vif->bss_conf.arp_addr_cnt != 1) {
1490 attr->val = vif->bss_conf.arp_addr_list[0];
1492 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1493 attr->val = *(__be32 *)&vif->addr[2];
1498 attr->reserved1 = 0;
1499 out_filter->num_attrs++;
1503 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1504 struct ieee80211_vif *vif)
1506 struct iwl_bcast_iter_data *data = _data;
1507 struct iwl_mvm *mvm = data->mvm;
1508 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1509 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1510 struct iwl_fw_bcast_mac *bcast_mac;
1513 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1516 bcast_mac = &cmd->macs[mvmvif->id];
1519 * enable filtering only for associated stations, but not for P2P
1522 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1523 !vif->bss_conf.assoc)
1526 bcast_mac->default_discard = 1;
1528 /* copy all configured filters */
1529 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1531 * Make sure we don't exceed our filters limit.
1532 * if there is still a valid filter to be configured,
1533 * be on the safe side and just allow bcast for this mac.
1535 if (WARN_ON_ONCE(data->current_filter >=
1536 ARRAY_SIZE(cmd->filters))) {
1537 bcast_mac->default_discard = 0;
1538 bcast_mac->attached_filters = 0;
1542 iwl_mvm_set_bcast_filter(vif,
1543 &mvm->bcast_filters[i],
1544 &cmd->filters[data->current_filter]);
1546 /* skip current filter if it contains no attributes */
1547 if (!cmd->filters[data->current_filter].num_attrs)
1550 /* attach the filter to current mac */
1551 bcast_mac->attached_filters |=
1552 cpu_to_le16(BIT(data->current_filter));
1554 data->current_filter++;
1558 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1559 struct iwl_bcast_filter_cmd *cmd)
1561 struct iwl_bcast_iter_data iter_data = {
1566 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1569 memset(cmd, 0, sizeof(*cmd));
1570 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1571 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1573 #ifdef CONFIG_IWLWIFI_DEBUGFS
1574 /* use debugfs filters/macs if override is configured */
1575 if (mvm->dbgfs_bcast_filtering.override) {
1576 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1577 sizeof(cmd->filters));
1578 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1584 /* if no filters are configured, do nothing */
1585 if (!mvm->bcast_filters)
1588 /* configure and attach these filters for each associated sta vif */
1589 ieee80211_iterate_active_interfaces(
1590 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1591 iwl_mvm_bcast_filter_iterator, &iter_data);
1595 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1596 struct ieee80211_vif *vif)
1598 struct iwl_bcast_filter_cmd cmd;
1600 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1603 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1606 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1610 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1611 struct ieee80211_vif *vif)
1617 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1618 struct ieee80211_vif *vif,
1619 struct ieee80211_bss_conf *bss_conf,
1622 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1626 * Re-calculate the tsf id, as the master-slave relations depend on the
1627 * beacon interval, which was not known when the station interface was
1630 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1631 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1634 * If we're not associated yet, take the (new) BSSID before associating
1635 * so the firmware knows. If we're already associated, then use the old
1636 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1637 * branch for disassociation below.
1639 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1640 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1642 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1644 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1646 /* after sending it once, adopt mac80211 data */
1647 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1648 mvmvif->associated = bss_conf->assoc;
1650 if (changes & BSS_CHANGED_ASSOC) {
1651 if (bss_conf->assoc) {
1652 /* add quota for this interface */
1653 ret = iwl_mvm_update_quotas(mvm, NULL);
1655 IWL_ERR(mvm, "failed to update quotas\n");
1659 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1662 * If we're restarting then the firmware will
1663 * obviously have lost synchronisation with
1664 * the AP. It will attempt to synchronise by
1665 * itself, but we can make it more reliable by
1666 * scheduling a session protection time event.
1668 * The firmware needs to receive a beacon to
1669 * catch up with synchronisation, use 110% of
1670 * the beacon interval.
1672 * Set a large maximum delay to allow for more
1673 * than a single interface.
1675 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1676 iwl_mvm_protect_session(mvm, vif, dur, dur,
1680 iwl_mvm_sf_update(mvm, vif, false);
1681 iwl_mvm_power_vif_assoc(mvm, vif);
1683 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1684 iwl_mvm_update_smps(mvm, vif,
1685 IWL_MVM_SMPS_REQ_PROT,
1686 IEEE80211_SMPS_DYNAMIC);
1688 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1690 * If update fails - SF might be running in associated
1691 * mode while disassociated - which is forbidden.
1693 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1694 "Failed to update SF upon disassociation\n");
1696 /* remove AP station now that the MAC is unassoc */
1697 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1699 IWL_ERR(mvm, "failed to remove AP station\n");
1701 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1702 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1703 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1704 /* remove quota for this interface */
1705 ret = iwl_mvm_update_quotas(mvm, NULL);
1707 IWL_ERR(mvm, "failed to update quotas\n");
1710 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1712 /* this will take the cleared BSSID from bss_conf */
1713 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1716 "failed to update MAC %pM (clear after unassoc)\n",
1720 iwl_mvm_recalc_multicast(mvm);
1721 iwl_mvm_configure_bcast_filter(mvm, vif);
1723 /* reset rssi values */
1724 mvmvif->bf_data.ave_beacon_signal = 0;
1726 iwl_mvm_bt_coex_vif_change(mvm);
1727 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1728 IEEE80211_SMPS_AUTOMATIC);
1729 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1731 * We received a beacon _after_ association so
1732 * remove the session protection.
1734 iwl_mvm_remove_time_event(mvm, mvmvif,
1735 &mvmvif->time_event_data);
1738 if (changes & BSS_CHANGED_BEACON_INFO) {
1739 iwl_mvm_sf_update(mvm, vif, false);
1740 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1743 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1744 ret = iwl_mvm_power_update_mac(mvm);
1746 IWL_ERR(mvm, "failed to update power mode\n");
1749 if (changes & BSS_CHANGED_TXPOWER) {
1750 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1752 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1755 if (changes & BSS_CHANGED_CQM) {
1756 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1757 /* reset cqm events tracking */
1758 mvmvif->bf_data.last_cqm_event = 0;
1759 if (mvmvif->bf_data.bf_enabled) {
1760 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1763 "failed to update CQM thresholds\n");
1767 if (changes & BSS_CHANGED_ARP_FILTER) {
1768 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1769 iwl_mvm_configure_bcast_filter(mvm, vif);
1773 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1774 struct ieee80211_vif *vif)
1776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1781 * iwl_mvm_mac_ctxt_add() might read directly from the device
1782 * (the system time), so make sure it is available.
1784 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1788 mutex_lock(&mvm->mutex);
1790 /* Send the beacon template */
1791 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1796 * Re-calculate the tsf id, as the master-slave relations depend on the
1797 * beacon interval, which was not known when the AP interface was added.
1799 if (vif->type == NL80211_IFTYPE_AP)
1800 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1802 /* Add the mac context */
1803 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1807 /* Perform the binding */
1808 ret = iwl_mvm_binding_add_vif(mvm, vif);
1812 /* Send the bcast station. At this stage the TBTT and DTIM time events
1813 * are added and applied to the scheduler */
1814 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1818 /* must be set before quota calculations */
1819 mvmvif->ap_ibss_active = true;
1821 /* power updated needs to be done before quotas */
1822 iwl_mvm_power_update_mac(mvm);
1824 ret = iwl_mvm_update_quotas(mvm, NULL);
1826 goto out_quota_failed;
1828 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1829 if (vif->p2p && mvm->p2p_device_vif)
1830 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1832 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1834 iwl_mvm_bt_coex_vif_change(mvm);
1836 /* we don't support TDLS during DCM */
1837 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1838 iwl_mvm_teardown_tdls_peers(mvm);
1840 mutex_unlock(&mvm->mutex);
1844 iwl_mvm_power_update_mac(mvm);
1845 mvmvif->ap_ibss_active = false;
1846 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1848 iwl_mvm_binding_remove_vif(mvm, vif);
1850 iwl_mvm_mac_ctxt_remove(mvm, vif);
1852 mutex_unlock(&mvm->mutex);
1853 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
1857 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1858 struct ieee80211_vif *vif)
1860 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1861 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1863 iwl_mvm_prepare_mac_removal(mvm, vif);
1865 mutex_lock(&mvm->mutex);
1867 /* Handle AP stop while in CSA */
1868 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1869 iwl_mvm_remove_time_event(mvm, mvmvif,
1870 &mvmvif->time_event_data);
1871 RCU_INIT_POINTER(mvm->csa_vif, NULL);
1874 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1875 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1876 mvm->csa_tx_block_bcn_timeout = 0;
1879 mvmvif->ap_ibss_active = false;
1880 mvm->ap_last_beacon_gp2 = 0;
1882 iwl_mvm_bt_coex_vif_change(mvm);
1884 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1886 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1887 if (vif->p2p && mvm->p2p_device_vif)
1888 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1890 iwl_mvm_update_quotas(mvm, NULL);
1891 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1892 iwl_mvm_binding_remove_vif(mvm, vif);
1894 iwl_mvm_power_update_mac(mvm);
1896 iwl_mvm_mac_ctxt_remove(mvm, vif);
1898 mutex_unlock(&mvm->mutex);
1902 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1903 struct ieee80211_vif *vif,
1904 struct ieee80211_bss_conf *bss_conf,
1907 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1909 /* Changes will be applied when the AP/IBSS is started */
1910 if (!mvmvif->ap_ibss_active)
1913 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1914 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
1915 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
1916 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1918 /* Need to send a new beacon template to the FW */
1919 if (changes & BSS_CHANGED_BEACON &&
1920 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1921 IWL_WARN(mvm, "Failed updating beacon data\n");
1923 if (changes & BSS_CHANGED_TXPOWER) {
1924 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1926 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1931 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1932 struct ieee80211_vif *vif,
1933 struct ieee80211_bss_conf *bss_conf,
1936 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1939 * iwl_mvm_bss_info_changed_station() might call
1940 * iwl_mvm_protect_session(), which reads directly from
1941 * the device (the system time), so make sure it is available.
1943 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1946 mutex_lock(&mvm->mutex);
1948 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1949 iwl_mvm_scan_offload_stop(mvm, true);
1951 switch (vif->type) {
1952 case NL80211_IFTYPE_STATION:
1953 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1955 case NL80211_IFTYPE_AP:
1956 case NL80211_IFTYPE_ADHOC:
1957 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1960 /* shouldn't happen */
1964 mutex_unlock(&mvm->mutex);
1965 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
1968 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1969 enum iwl_scan_status scan_type)
1972 bool wait_for_handlers = false;
1974 mutex_lock(&mvm->mutex);
1976 if (mvm->scan_status != scan_type) {
1978 /* make sure there are no pending notifications */
1979 wait_for_handlers = true;
1983 switch (scan_type) {
1984 case IWL_MVM_SCAN_SCHED:
1985 ret = iwl_mvm_scan_offload_stop(mvm, true);
1987 case IWL_MVM_SCAN_OS:
1988 ret = iwl_mvm_cancel_scan(mvm);
1990 case IWL_MVM_SCAN_NONE:
1999 wait_for_handlers = true;
2001 mutex_unlock(&mvm->mutex);
2003 /* make sure we consume the completion notification */
2004 if (wait_for_handlers)
2005 iwl_mvm_wait_for_async_handlers(mvm);
2009 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2010 struct ieee80211_vif *vif,
2011 struct ieee80211_scan_request *hw_req)
2013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2014 struct cfg80211_scan_request *req = &hw_req->req;
2017 if (req->n_channels == 0 ||
2018 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
2021 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2022 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2027 mutex_lock(&mvm->mutex);
2029 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2034 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2036 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
2037 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
2038 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2039 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
2041 ret = iwl_mvm_scan_request(mvm, vif, req);
2044 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2046 mutex_unlock(&mvm->mutex);
2050 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2051 struct ieee80211_vif *vif)
2053 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2055 mutex_lock(&mvm->mutex);
2057 iwl_mvm_cancel_scan(mvm);
2059 mutex_unlock(&mvm->mutex);
2063 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2064 struct ieee80211_sta *sta, u16 tids,
2066 enum ieee80211_frame_release_type reason,
2069 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2071 /* Called when we need to transmit (a) frame(s) from mac80211 */
2073 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2074 tids, more_data, false);
2078 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2079 struct ieee80211_sta *sta, u16 tids,
2081 enum ieee80211_frame_release_type reason,
2084 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2086 /* Called when we need to transmit (a) frame(s) from agg queue */
2088 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2089 tids, more_data, true);
2092 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2093 struct ieee80211_vif *vif,
2094 enum sta_notify_cmd cmd,
2095 struct ieee80211_sta *sta)
2097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2098 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2102 case STA_NOTIFY_SLEEP:
2103 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
2104 ieee80211_sta_block_awake(hw, sta, true);
2105 spin_lock_bh(&mvmsta->lock);
2106 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2107 struct iwl_mvm_tid_data *tid_data;
2109 tid_data = &mvmsta->tid_data[tid];
2110 if (tid_data->state != IWL_AGG_ON &&
2111 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2113 if (iwl_mvm_tid_queued(tid_data) == 0)
2115 ieee80211_sta_set_buffered(sta, tid, true);
2117 spin_unlock_bh(&mvmsta->lock);
2119 * The fw updates the STA to be asleep. Tx packets on the Tx
2120 * queues to this station will not be transmitted. The fw will
2121 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2124 case STA_NOTIFY_AWAKE:
2125 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2127 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2134 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2135 struct ieee80211_vif *vif,
2136 struct ieee80211_sta *sta)
2138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2139 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2142 * This is called before mac80211 does RCU synchronisation,
2143 * so here we already invalidate our internal RCU-protected
2144 * station pointer. The rest of the code will thus no longer
2145 * be able to find the station this way, and we don't rely
2146 * on further RCU synchronisation after the sta_state()
2147 * callback deleted the station.
2149 mutex_lock(&mvm->mutex);
2150 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2151 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2153 mutex_unlock(&mvm->mutex);
2156 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2157 struct ieee80211_vif *vif,
2158 struct ieee80211_sta *sta,
2159 enum ieee80211_sta_state old_state,
2160 enum ieee80211_sta_state new_state)
2162 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2163 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2166 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2167 sta->addr, old_state, new_state);
2169 /* this would be a mac80211 bug ... but don't crash */
2170 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2173 /* if a STA is being removed, reuse its ID */
2174 flush_work(&mvm->sta_drained_wk);
2176 mutex_lock(&mvm->mutex);
2177 if (old_state == IEEE80211_STA_NOTEXIST &&
2178 new_state == IEEE80211_STA_NONE) {
2180 * Firmware bug - it'll crash if the beacon interval is less
2181 * than 16. We can't avoid connecting at all, so refuse the
2182 * station state change, this will cause mac80211 to abandon
2183 * attempts to connect to this AP, and eventually wpa_s will
2184 * blacklist the AP...
2186 if (vif->type == NL80211_IFTYPE_STATION &&
2187 vif->bss_conf.beacon_int < 16) {
2189 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2190 sta->addr, vif->bss_conf.beacon_int);
2197 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2198 IWL_MVM_TDLS_STA_COUNT ||
2199 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2200 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2205 ret = iwl_mvm_add_sta(mvm, vif, sta);
2206 if (sta->tdls && ret == 0)
2207 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2208 } else if (old_state == IEEE80211_STA_NONE &&
2209 new_state == IEEE80211_STA_AUTH) {
2211 * EBS may be disabled due to previous failures reported by FW.
2212 * Reset EBS status here assuming environment has been changed.
2214 mvm->last_ebs_successful = true;
2216 } else if (old_state == IEEE80211_STA_AUTH &&
2217 new_state == IEEE80211_STA_ASSOC) {
2218 ret = iwl_mvm_update_sta(mvm, vif, sta);
2220 iwl_mvm_rs_rate_init(mvm, sta,
2221 mvmvif->phy_ctxt->channel->band,
2223 } else if (old_state == IEEE80211_STA_ASSOC &&
2224 new_state == IEEE80211_STA_AUTHORIZED) {
2226 /* we don't support TDLS during DCM */
2227 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2228 iwl_mvm_teardown_tdls_peers(mvm);
2230 /* enable beacon filtering */
2231 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2233 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2234 new_state == IEEE80211_STA_ASSOC) {
2235 /* disable beacon filtering */
2236 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2238 } else if (old_state == IEEE80211_STA_ASSOC &&
2239 new_state == IEEE80211_STA_AUTH) {
2241 } else if (old_state == IEEE80211_STA_AUTH &&
2242 new_state == IEEE80211_STA_NONE) {
2244 } else if (old_state == IEEE80211_STA_NONE &&
2245 new_state == IEEE80211_STA_NOTEXIST) {
2246 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2248 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2253 mutex_unlock(&mvm->mutex);
2255 if (sta->tdls && ret == 0) {
2256 if (old_state == IEEE80211_STA_NOTEXIST &&
2257 new_state == IEEE80211_STA_NONE)
2258 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2259 else if (old_state == IEEE80211_STA_NONE &&
2260 new_state == IEEE80211_STA_NOTEXIST)
2261 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2267 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2271 mvm->rts_threshold = value;
2276 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2277 struct ieee80211_vif *vif,
2278 struct ieee80211_sta *sta, u32 changed)
2280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2282 if (vif->type == NL80211_IFTYPE_STATION &&
2283 changed & IEEE80211_RC_NSS_CHANGED)
2284 iwl_mvm_sf_update(mvm, vif, false);
2287 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2288 struct ieee80211_vif *vif, u16 ac,
2289 const struct ieee80211_tx_queue_params *params)
2291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2292 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2294 mvmvif->queue_params[ac] = *params;
2297 * No need to update right away, we'll get BSS_CHANGED_QOS
2298 * The exception is P2P_DEVICE interface which needs immediate update.
2300 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2303 mutex_lock(&mvm->mutex);
2304 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2305 mutex_unlock(&mvm->mutex);
2311 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2312 struct ieee80211_vif *vif)
2314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2315 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2316 200 + vif->bss_conf.beacon_int);
2317 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2318 100 + vif->bss_conf.beacon_int);
2320 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2324 * iwl_mvm_protect_session() reads directly from the device
2325 * (the system time), so make sure it is available.
2327 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2330 mutex_lock(&mvm->mutex);
2331 /* Try really hard to protect the session and hear a beacon */
2332 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2333 mutex_unlock(&mvm->mutex);
2335 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2338 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2339 struct ieee80211_vif *vif,
2340 struct cfg80211_sched_scan_request *req,
2341 struct ieee80211_scan_ies *ies)
2343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2346 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2347 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2352 mutex_lock(&mvm->mutex);
2354 /* Newest FW fixes sched scan while connected on another interface */
2355 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2356 if (!vif->bss_conf.idle) {
2360 } else if (!iwl_mvm_is_idle(mvm)) {
2365 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2370 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
2372 mvm->scan_status = IWL_MVM_SCAN_NONE;
2375 mutex_unlock(&mvm->mutex);
2379 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2380 struct ieee80211_vif *vif)
2382 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2385 mutex_lock(&mvm->mutex);
2386 ret = iwl_mvm_scan_offload_stop(mvm, false);
2387 mutex_unlock(&mvm->mutex);
2388 iwl_mvm_wait_for_async_handlers(mvm);
2394 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2395 enum set_key_cmd cmd,
2396 struct ieee80211_vif *vif,
2397 struct ieee80211_sta *sta,
2398 struct ieee80211_key_conf *key)
2400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2403 if (iwlwifi_mod_params.sw_crypto) {
2404 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2408 switch (key->cipher) {
2409 case WLAN_CIPHER_SUITE_TKIP:
2410 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2412 case WLAN_CIPHER_SUITE_CCMP:
2413 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2415 case WLAN_CIPHER_SUITE_AES_CMAC:
2416 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2418 case WLAN_CIPHER_SUITE_WEP40:
2419 case WLAN_CIPHER_SUITE_WEP104:
2420 /* For non-client mode, only use WEP keys for TX as we probably
2421 * don't have a station yet anyway and would then have to keep
2422 * track of the keys, linking them to each of the clients/peers
2423 * as they appear. For now, don't do that, for performance WEP
2424 * offload doesn't really matter much, but we need it for some
2425 * other offload features in client mode.
2427 if (vif->type != NL80211_IFTYPE_STATION)
2431 /* currently FW supports only one optional cipher scheme */
2432 if (hw->n_cipher_schemes &&
2433 hw->cipher_schemes->cipher == key->cipher)
2434 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2439 mutex_lock(&mvm->mutex);
2443 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2444 vif->type == NL80211_IFTYPE_AP) && !sta) {
2446 * GTK on AP interface is a TX-only key, return 0;
2447 * on IBSS they're per-station and because we're lazy
2448 * we don't support them for RX, so do the same.
2451 key->hw_key_idx = STA_KEY_IDX_INVALID;
2455 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2456 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2458 IWL_WARN(mvm, "set key failed\n");
2460 * can't add key for RX, but we don't need it
2461 * in the device for TX so still return 0
2463 key->hw_key_idx = STA_KEY_IDX_INVALID;
2469 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2474 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2475 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2481 mutex_unlock(&mvm->mutex);
2485 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2486 struct ieee80211_vif *vif,
2487 struct ieee80211_key_conf *keyconf,
2488 struct ieee80211_sta *sta,
2489 u32 iv32, u16 *phase1key)
2491 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2493 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2496 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2500 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2501 struct iwl_rx_packet *pkt, void *data)
2503 struct iwl_mvm *mvm =
2504 container_of(notif_wait, struct iwl_mvm, notif_wait);
2505 struct iwl_hs20_roc_res *resp;
2506 int resp_len = iwl_rx_packet_payload_len(pkt);
2507 struct iwl_mvm_time_event_data *te_data = data;
2509 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2512 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2513 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2517 resp = (void *)pkt->data;
2520 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2521 resp->status, resp->event_unique_id);
2523 te_data->uid = le32_to_cpu(resp->event_unique_id);
2524 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2527 spin_lock_bh(&mvm->time_event_lock);
2528 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2529 spin_unlock_bh(&mvm->time_event_lock);
2534 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2535 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2536 struct ieee80211_channel *channel,
2537 struct ieee80211_vif *vif,
2540 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2541 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2542 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2543 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2544 struct iwl_notification_wait wait_time_event;
2545 struct iwl_hs20_roc_req aux_roc_req = {
2546 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2548 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2549 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2550 /* Set the channel info data */
2551 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2552 PHY_BAND_24 : PHY_BAND_5,
2553 .channel_info.channel = channel->hw_value,
2554 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2555 /* Set the time and duration */
2556 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2557 .apply_time_max_delay =
2558 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2559 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2562 /* Set the node address */
2563 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2565 lockdep_assert_held(&mvm->mutex);
2567 spin_lock_bh(&mvm->time_event_lock);
2569 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2570 spin_unlock_bh(&mvm->time_event_lock);
2575 te_data->duration = duration;
2576 te_data->id = HOT_SPOT_CMD;
2578 spin_unlock_bh(&mvm->time_event_lock);
2581 * Use a notification wait, which really just processes the
2582 * command response and doesn't wait for anything, in order
2583 * to be able to process the response and get the UID inside
2584 * the RX path. Using CMD_WANT_SKB doesn't work because it
2585 * stores the buffer and then wakes up this thread, by which
2586 * time another notification (that the time event started)
2587 * might already be processed unsuccessfully.
2589 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2590 time_event_response,
2591 ARRAY_SIZE(time_event_response),
2592 iwl_mvm_rx_aux_roc, te_data);
2594 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2598 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2599 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2603 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2604 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2605 /* should never fail */
2610 spin_lock_bh(&mvm->time_event_lock);
2611 iwl_mvm_te_clear_data(mvm, te_data);
2612 spin_unlock_bh(&mvm->time_event_lock);
2618 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2619 struct ieee80211_vif *vif,
2620 struct ieee80211_channel *channel,
2622 enum ieee80211_roc_type type)
2624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2625 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2626 struct cfg80211_chan_def chandef;
2627 struct iwl_mvm_phy_ctxt *phy_ctxt;
2630 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2633 mutex_lock(&mvm->mutex);
2635 switch (vif->type) {
2636 case NL80211_IFTYPE_STATION:
2637 if (mvm->fw->ucode_capa.capa[0] &
2638 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
2639 /* Use aux roc framework (HS20) */
2640 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2644 IWL_ERR(mvm, "hotspot not supported\n");
2647 case NL80211_IFTYPE_P2P_DEVICE:
2651 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2656 for (i = 0; i < NUM_PHY_CTX; i++) {
2657 phy_ctxt = &mvm->phy_ctxts[i];
2658 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2661 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2663 * Unbind the P2P_DEVICE from the current PHY context,
2664 * and if the PHY context is not used remove it.
2666 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2667 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2670 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2672 /* Bind the P2P_DEVICE to the current PHY Context */
2673 mvmvif->phy_ctxt = phy_ctxt;
2675 ret = iwl_mvm_binding_add_vif(mvm, vif);
2676 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2679 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2680 goto schedule_time_event;
2684 /* Need to update the PHY context only if the ROC channel changed */
2685 if (channel == mvmvif->phy_ctxt->channel)
2686 goto schedule_time_event;
2688 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2691 * Change the PHY context configuration as it is currently referenced
2692 * only by the P2P Device MAC
2694 if (mvmvif->phy_ctxt->ref == 1) {
2695 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2701 * The PHY context is shared with other MACs. Need to remove the
2702 * P2P Device from the binding, allocate an new PHY context and
2703 * create a new binding
2705 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2711 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2714 IWL_ERR(mvm, "Failed to change PHY context\n");
2718 /* Unbind the P2P_DEVICE from the current PHY context */
2719 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2720 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2723 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2725 /* Bind the P2P_DEVICE to the new allocated PHY context */
2726 mvmvif->phy_ctxt = phy_ctxt;
2728 ret = iwl_mvm_binding_add_vif(mvm, vif);
2729 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2732 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2735 schedule_time_event:
2736 /* Schedule the time events */
2737 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2740 mutex_unlock(&mvm->mutex);
2741 IWL_DEBUG_MAC80211(mvm, "leave\n");
2745 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2749 IWL_DEBUG_MAC80211(mvm, "enter\n");
2751 mutex_lock(&mvm->mutex);
2752 iwl_mvm_stop_roc(mvm);
2753 mutex_unlock(&mvm->mutex);
2755 IWL_DEBUG_MAC80211(mvm, "leave\n");
2759 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2760 struct ieee80211_chanctx_conf *ctx)
2762 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2763 struct iwl_mvm_phy_ctxt *phy_ctxt;
2766 lockdep_assert_held(&mvm->mutex);
2768 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2770 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2776 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2777 ctx->rx_chains_static,
2778 ctx->rx_chains_dynamic);
2780 IWL_ERR(mvm, "Failed to add PHY context\n");
2784 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2785 *phy_ctxt_id = phy_ctxt->id;
2790 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2791 struct ieee80211_chanctx_conf *ctx)
2793 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2796 mutex_lock(&mvm->mutex);
2797 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2798 mutex_unlock(&mvm->mutex);
2803 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2804 struct ieee80211_chanctx_conf *ctx)
2806 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2807 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2809 lockdep_assert_held(&mvm->mutex);
2811 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2814 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2815 struct ieee80211_chanctx_conf *ctx)
2817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2819 mutex_lock(&mvm->mutex);
2820 __iwl_mvm_remove_chanctx(mvm, ctx);
2821 mutex_unlock(&mvm->mutex);
2824 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2825 struct ieee80211_chanctx_conf *ctx,
2828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2829 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2830 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2832 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2833 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2834 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2835 IEEE80211_CHANCTX_CHANGE_RADAR |
2836 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2837 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2838 phy_ctxt->ref, changed))
2841 mutex_lock(&mvm->mutex);
2842 iwl_mvm_bt_coex_vif_change(mvm);
2843 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2844 ctx->rx_chains_static,
2845 ctx->rx_chains_dynamic);
2846 mutex_unlock(&mvm->mutex);
2849 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2850 struct ieee80211_vif *vif,
2851 struct ieee80211_chanctx_conf *ctx,
2852 bool switching_chanctx)
2854 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2855 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2856 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2859 lockdep_assert_held(&mvm->mutex);
2861 mvmvif->phy_ctxt = phy_ctxt;
2863 switch (vif->type) {
2864 case NL80211_IFTYPE_AP:
2865 /* only needed if we're switching chanctx (i.e. during CSA) */
2866 if (switching_chanctx) {
2867 mvmvif->ap_ibss_active = true;
2870 case NL80211_IFTYPE_ADHOC:
2872 * The AP binding flow is handled as part of the start_ap flow
2873 * (in bss_info_changed), similarly for IBSS.
2877 case NL80211_IFTYPE_STATION:
2879 case NL80211_IFTYPE_MONITOR:
2880 /* always disable PS when a monitor interface is active */
2881 mvmvif->ps_disabled = true;
2888 ret = iwl_mvm_binding_add_vif(mvm, vif);
2893 * Power state must be updated before quotas,
2894 * otherwise fw will complain.
2896 iwl_mvm_power_update_mac(mvm);
2898 /* Setting the quota at this stage is only required for monitor
2899 * interfaces. For the other types, the bss_info changed flow
2900 * will handle quota settings.
2902 if (vif->type == NL80211_IFTYPE_MONITOR) {
2903 mvmvif->monitor_active = true;
2904 ret = iwl_mvm_update_quotas(mvm, NULL);
2906 goto out_remove_binding;
2909 /* Handle binding during CSA */
2910 if (vif->type == NL80211_IFTYPE_AP) {
2911 iwl_mvm_update_quotas(mvm, NULL);
2912 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2915 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
2916 u32 duration = 2 * vif->bss_conf.beacon_int;
2918 /* iwl_mvm_protect_session() reads directly from the
2919 * device (the system time), so make sure it is
2922 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
2924 goto out_remove_binding;
2926 /* Protect the session to make sure we hear the first
2927 * beacon on the new channel.
2929 iwl_mvm_protect_session(mvm, vif, duration, duration,
2930 vif->bss_conf.beacon_int / 2,
2933 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
2935 iwl_mvm_update_quotas(mvm, NULL);
2941 iwl_mvm_binding_remove_vif(mvm, vif);
2942 iwl_mvm_power_update_mac(mvm);
2945 mvmvif->phy_ctxt = NULL;
2948 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2949 struct ieee80211_vif *vif,
2950 struct ieee80211_chanctx_conf *ctx)
2952 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2955 mutex_lock(&mvm->mutex);
2956 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
2957 mutex_unlock(&mvm->mutex);
2962 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2963 struct ieee80211_vif *vif,
2964 struct ieee80211_chanctx_conf *ctx,
2965 bool switching_chanctx)
2967 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2968 struct ieee80211_vif *disabled_vif = NULL;
2970 lockdep_assert_held(&mvm->mutex);
2972 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2974 switch (vif->type) {
2975 case NL80211_IFTYPE_ADHOC:
2977 case NL80211_IFTYPE_MONITOR:
2978 mvmvif->monitor_active = false;
2979 mvmvif->ps_disabled = false;
2981 case NL80211_IFTYPE_AP:
2982 /* This part is triggered only during CSA */
2983 if (!switching_chanctx || !mvmvif->ap_ibss_active)
2986 mvmvif->csa_countdown = false;
2988 /* Set CS bit on all the stations */
2989 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2991 /* Save blocked iface, the timeout is set on the next beacon */
2992 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2994 mvmvif->ap_ibss_active = false;
2996 case NL80211_IFTYPE_STATION:
2997 if (!switching_chanctx)
3002 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3008 iwl_mvm_update_quotas(mvm, disabled_vif);
3009 iwl_mvm_binding_remove_vif(mvm, vif);
3012 mvmvif->phy_ctxt = NULL;
3013 iwl_mvm_power_update_mac(mvm);
3016 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3017 struct ieee80211_vif *vif,
3018 struct ieee80211_chanctx_conf *ctx)
3020 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3022 mutex_lock(&mvm->mutex);
3023 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3024 mutex_unlock(&mvm->mutex);
3028 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3029 struct ieee80211_vif_chanctx_switch *vifs)
3033 mutex_lock(&mvm->mutex);
3034 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3035 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3037 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3039 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3043 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3047 "failed to assign new_ctx during channel switch\n");
3051 /* we don't support TDLS during DCM - can be caused by channel switch */
3052 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3053 iwl_mvm_teardown_tdls_peers(mvm);
3058 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3061 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3062 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3066 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3068 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3075 /* things keep failing, better restart the hw */
3076 iwl_mvm_nic_restart(mvm, false);
3079 mutex_unlock(&mvm->mutex);
3085 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3086 struct ieee80211_vif_chanctx_switch *vifs)
3090 mutex_lock(&mvm->mutex);
3091 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3093 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3097 "failed to assign new_ctx during channel switch\n");
3104 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3106 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3113 /* things keep failing, better restart the hw */
3114 iwl_mvm_nic_restart(mvm, false);
3117 mutex_unlock(&mvm->mutex);
3122 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3123 struct ieee80211_vif_chanctx_switch *vifs,
3125 enum ieee80211_chanctx_switch_mode mode)
3127 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3130 /* we only support a single-vif right now */
3135 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3136 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3138 case CHANCTX_SWMODE_REASSIGN_VIF:
3139 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3149 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3150 struct ieee80211_sta *sta,
3153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3154 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
3156 if (!mvm_sta || !mvm_sta->vif) {
3157 IWL_ERR(mvm, "Station is not associated to a vif\n");
3161 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3164 #ifdef CONFIG_NL80211_TESTMODE
3165 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3166 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3167 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3168 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3171 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3172 struct ieee80211_vif *vif,
3173 void *data, int len)
3175 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3179 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3183 if (!tb[IWL_MVM_TM_ATTR_CMD])
3186 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3187 case IWL_MVM_TM_CMD_SET_NOA:
3188 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3189 !vif->bss_conf.enable_beacon ||
3190 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3193 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3194 if (noa_duration >= vif->bss_conf.beacon_int)
3197 mvm->noa_duration = noa_duration;
3200 return iwl_mvm_update_quotas(mvm, NULL);
3201 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3202 /* must be associated client vif - ignore authorized */
3203 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3204 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3205 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3208 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3209 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3210 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3216 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3217 struct ieee80211_vif *vif,
3218 void *data, int len)
3220 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3223 mutex_lock(&mvm->mutex);
3224 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3225 mutex_unlock(&mvm->mutex);
3231 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3232 struct ieee80211_vif *vif,
3233 struct ieee80211_channel_switch *chsw)
3235 /* By implementing this operation, we prevent mac80211 from
3236 * starting its own channel switch timer, so that we can call
3237 * ieee80211_chswitch_done() ourselves at the right time
3238 * (which is when the absence time event starts).
3241 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3242 "dummy channel switch op\n");
3245 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3246 struct ieee80211_vif *vif,
3247 struct ieee80211_channel_switch *chsw)
3249 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3250 struct ieee80211_vif *csa_vif;
3251 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3255 mutex_lock(&mvm->mutex);
3257 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3258 chsw->chandef.center_freq1);
3260 switch (vif->type) {
3261 case NL80211_IFTYPE_AP:
3263 rcu_dereference_protected(mvm->csa_vif,
3264 lockdep_is_held(&mvm->mutex));
3265 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3266 "Another CSA is already in progress")) {
3271 rcu_assign_pointer(mvm->csa_vif, vif);
3273 if (WARN_ONCE(mvmvif->csa_countdown,
3274 "Previous CSA countdown didn't complete")) {
3280 case NL80211_IFTYPE_STATION:
3281 /* Schedule the time event to a bit before beacon 1,
3282 * to make sure we're in the new channel when the
3285 apply_time = chsw->device_timestamp +
3286 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3287 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3290 iwl_mvm_csa_client_absent(mvm, vif);
3292 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3294 if (mvmvif->bf_data.bf_enabled) {
3295 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3305 mvmvif->ps_disabled = true;
3307 ret = iwl_mvm_power_update_ps(mvm);
3311 /* we won't be on this channel any longer */
3312 iwl_mvm_teardown_tdls_peers(mvm);
3315 mutex_unlock(&mvm->mutex);
3320 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3321 struct ieee80211_vif *vif)
3323 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3327 mutex_lock(&mvm->mutex);
3329 if (vif->type == NL80211_IFTYPE_STATION) {
3330 struct iwl_mvm_sta *mvmsta;
3332 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3335 if (WARN_ON(!mvmsta)) {
3340 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3342 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3344 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3348 iwl_mvm_stop_session_protection(mvm, vif);
3351 mvmvif->ps_disabled = false;
3353 ret = iwl_mvm_power_update_ps(mvm);
3356 mutex_unlock(&mvm->mutex);
3361 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3362 struct ieee80211_vif *vif, u32 queues, bool drop)
3364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3365 struct iwl_mvm_vif *mvmvif;
3366 struct iwl_mvm_sta *mvmsta;
3367 struct ieee80211_sta *sta;
3371 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3374 mutex_lock(&mvm->mutex);
3375 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3377 /* flush the AP-station and all TDLS peers */
3378 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3379 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3380 lockdep_is_held(&mvm->mutex));
3381 if (IS_ERR_OR_NULL(sta))
3384 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3385 if (mvmsta->vif != vif)
3388 /* make sure only TDLS peers or the AP are flushed */
3389 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3391 msk |= mvmsta->tfd_queue_msk;
3395 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3396 IWL_ERR(mvm, "flush request fail\n");
3397 mutex_unlock(&mvm->mutex);
3399 mutex_unlock(&mvm->mutex);
3401 /* this can take a while, and we may need/want other operations
3402 * to succeed while doing this, so do it without the mutex held
3404 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3408 const struct ieee80211_ops iwl_mvm_hw_ops = {
3409 .tx = iwl_mvm_mac_tx,
3410 .ampdu_action = iwl_mvm_mac_ampdu_action,
3411 .start = iwl_mvm_mac_start,
3412 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
3413 .stop = iwl_mvm_mac_stop,
3414 .add_interface = iwl_mvm_mac_add_interface,
3415 .remove_interface = iwl_mvm_mac_remove_interface,
3416 .config = iwl_mvm_mac_config,
3417 .prepare_multicast = iwl_mvm_prepare_multicast,
3418 .configure_filter = iwl_mvm_configure_filter,
3419 .bss_info_changed = iwl_mvm_bss_info_changed,
3420 .hw_scan = iwl_mvm_mac_hw_scan,
3421 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3422 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3423 .sta_state = iwl_mvm_mac_sta_state,
3424 .sta_notify = iwl_mvm_mac_sta_notify,
3425 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3426 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3427 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3428 .sta_rc_update = iwl_mvm_sta_rc_update,
3429 .conf_tx = iwl_mvm_mac_conf_tx,
3430 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3431 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3432 .flush = iwl_mvm_mac_flush,
3433 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3434 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3435 .set_key = iwl_mvm_mac_set_key,
3436 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3437 .remain_on_channel = iwl_mvm_roc,
3438 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3439 .add_chanctx = iwl_mvm_add_chanctx,
3440 .remove_chanctx = iwl_mvm_remove_chanctx,
3441 .change_chanctx = iwl_mvm_change_chanctx,
3442 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3443 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3444 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3446 .start_ap = iwl_mvm_start_ap_ibss,
3447 .stop_ap = iwl_mvm_stop_ap_ibss,
3448 .join_ibss = iwl_mvm_start_ap_ibss,
3449 .leave_ibss = iwl_mvm_stop_ap_ibss,
3451 .set_tim = iwl_mvm_set_tim,
3453 .channel_switch = iwl_mvm_channel_switch,
3454 .pre_channel_switch = iwl_mvm_pre_channel_switch,
3455 .post_channel_switch = iwl_mvm_post_channel_switch,
3457 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3458 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3459 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3461 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3463 #ifdef CONFIG_PM_SLEEP
3465 .suspend = iwl_mvm_suspend,
3466 .resume = iwl_mvm_resume,
3467 .set_wakeup = iwl_mvm_set_wakeup,
3468 .set_rekey_data = iwl_mvm_set_rekey_data,
3469 #if IS_ENABLED(CONFIG_IPV6)
3470 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3472 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,