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 <net/mac80211.h>
73 #include <net/ieee80211_radiotap.h>
76 #include "iwl-op-mode.h"
80 #include "time-event.h"
81 #include "iwl-eeprom-parse.h"
82 #include "fw-api-scan.h"
83 #include "iwl-phy-db.h"
85 #include "iwl-fw-error-dump.h"
88 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
91 .types = BIT(NL80211_IFTYPE_STATION),
95 .types = BIT(NL80211_IFTYPE_AP) |
96 BIT(NL80211_IFTYPE_P2P_CLIENT) |
97 BIT(NL80211_IFTYPE_P2P_GO),
101 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
105 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
107 .num_different_channels = 1,
109 .limits = iwl_mvm_limits,
110 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
114 #ifdef CONFIG_PM_SLEEP
115 static const struct nl80211_wowlan_tcp_data_token_feature
116 iwl_mvm_wowlan_tcp_token_feature = {
119 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
122 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
123 .tok = &iwl_mvm_wowlan_tcp_token_feature,
124 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
125 sizeof(struct ethhdr) -
126 sizeof(struct iphdr) -
127 sizeof(struct tcphdr),
128 .data_interval_max = 65535, /* __le16 in API */
129 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
130 sizeof(struct ethhdr) -
131 sizeof(struct iphdr) -
132 sizeof(struct tcphdr),
137 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
139 * Use the reserved field to indicate magic values.
140 * these values will only be used internally by the driver,
141 * and won't make it to the fw (reserved will be 0).
142 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
143 * be the vif's ip address. in case there is not a single
144 * ip address (0, or more than 1), this attribute will
146 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
147 * the LSB bytes of the vif's mac address
150 BC_FILTER_MAGIC_NONE = 0,
155 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
159 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
162 /* frame type - arp, hw type - ethernet */
164 BCAST_FILTER_OFFSET_PAYLOAD_START,
165 .offset = sizeof(rfc1042_header),
166 .val = cpu_to_be32(0x08060001),
167 .mask = cpu_to_be32(0xffffffff),
172 BCAST_FILTER_OFFSET_PAYLOAD_START,
173 .offset = sizeof(rfc1042_header) + 2 +
174 sizeof(struct arphdr) +
175 ETH_ALEN + sizeof(__be32) +
177 .mask = cpu_to_be32(0xffffffff),
178 /* mark it as special field */
179 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
184 /* dhcp offer bcast */
186 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
189 /* udp dest port - 68 (bootp client)*/
190 .offset_type = BCAST_FILTER_OFFSET_IP_END,
191 .offset = offsetof(struct udphdr, dest),
192 .val = cpu_to_be32(0x00440000),
193 .mask = cpu_to_be32(0xffff0000),
196 /* dhcp - lsb bytes of client hw address */
197 .offset_type = BCAST_FILTER_OFFSET_IP_END,
199 .mask = cpu_to_be32(0xffffffff),
200 /* mark it as special field */
201 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
205 /* last filter must be empty */
210 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
212 if (!iwl_mvm_is_d0i3_supported(mvm))
215 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
216 spin_lock_bh(&mvm->refs_lock);
217 mvm->refs[ref_type]++;
218 spin_unlock_bh(&mvm->refs_lock);
219 iwl_trans_ref(mvm->trans);
222 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
224 if (!iwl_mvm_is_d0i3_supported(mvm))
227 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
228 spin_lock_bh(&mvm->refs_lock);
229 WARN_ON(!mvm->refs[ref_type]--);
230 spin_unlock_bh(&mvm->refs_lock);
231 iwl_trans_unref(mvm->trans);
234 static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
235 enum iwl_mvm_ref_type except_ref)
239 if (!iwl_mvm_is_d0i3_supported(mvm))
242 spin_lock_bh(&mvm->refs_lock);
243 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
244 if (except_ref == i || !mvm->refs[i])
247 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
249 for (j = 0; j < mvm->refs[i]; j++)
250 iwl_trans_unref(mvm->trans);
253 spin_unlock_bh(&mvm->refs_lock);
256 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
258 iwl_mvm_ref(mvm, ref_type);
260 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
261 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
264 iwl_mvm_unref(mvm, ref_type);
271 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
275 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
276 for (i = 0; i < NUM_PHY_CTX; i++) {
277 mvm->phy_ctxts[i].id = i;
278 mvm->phy_ctxts[i].ref = 0;
282 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
284 struct ieee80211_hw *hw = mvm->hw;
287 /* Tell mac80211 our characteristics */
288 hw->flags = IEEE80211_HW_SIGNAL_DBM |
289 IEEE80211_HW_SPECTRUM_MGMT |
290 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
291 IEEE80211_HW_QUEUE_CONTROL |
292 IEEE80211_HW_WANT_MONITOR_VIF |
293 IEEE80211_HW_SUPPORTS_PS |
294 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
295 IEEE80211_HW_AMPDU_AGGREGATION |
296 IEEE80211_HW_TIMING_BEACON_ONLY |
297 IEEE80211_HW_CONNECTION_MONITOR |
298 IEEE80211_HW_CHANCTX_STA_CSA |
299 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
301 hw->queues = mvm->first_agg_queue;
302 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
303 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
304 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
305 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
306 hw->rate_control_algorithm = "iwl-mvm-rs";
309 * Enable 11w if advertised by firmware and software crypto
310 * is not enabled (as the firmware will interpret some mgmt
311 * packets, so enabling it with software crypto isn't safe)
313 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
314 !iwlwifi_mod_params.sw_crypto)
315 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
317 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
318 IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
319 !iwlwifi_mod_params.uapsd_disable) {
320 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
321 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
322 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
325 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
326 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
328 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
329 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
330 hw->chanctx_data_size = sizeof(u16);
332 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
333 BIT(NL80211_IFTYPE_P2P_CLIENT) |
334 BIT(NL80211_IFTYPE_AP) |
335 BIT(NL80211_IFTYPE_P2P_GO) |
336 BIT(NL80211_IFTYPE_P2P_DEVICE) |
337 BIT(NL80211_IFTYPE_ADHOC);
339 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
340 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
341 REGULATORY_DISABLE_BEACON_HINTS;
343 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
344 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
346 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
347 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
349 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
350 hw->wiphy->n_iface_combinations =
351 ARRAY_SIZE(iwl_mvm_iface_combinations);
353 hw->wiphy->max_remain_on_channel_duration = 10000;
354 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
356 /* Extract MAC address */
357 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
358 hw->wiphy->addresses = mvm->addresses;
359 hw->wiphy->n_addresses = 1;
361 /* Extract additional MAC addresses if available */
362 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
363 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
365 for (i = 1; i < num_mac; i++) {
366 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
368 mvm->addresses[i].addr[5]++;
369 hw->wiphy->n_addresses++;
372 iwl_mvm_reset_phy_ctxts(mvm);
374 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
376 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
378 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
379 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
380 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
381 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
382 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
383 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
385 hw->wiphy->hw_version = mvm->trans->hw_id;
387 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
388 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
390 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
392 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
393 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
394 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
395 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
396 /* we create the 802.11 header and zero length SSID IE. */
397 hw->wiphy->max_sched_scan_ie_len =
398 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
401 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
402 NL80211_FEATURE_LOW_PRIORITY_SCAN |
403 NL80211_FEATURE_P2P_GO_OPPPS |
404 NL80211_FEATURE_DYNAMIC_SMPS |
405 NL80211_FEATURE_STATIC_SMPS;
407 if (mvm->fw->ucode_capa.capa[0] &
408 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
409 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
410 if (mvm->fw->ucode_capa.capa[0] &
411 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
412 hw->wiphy->features |= NL80211_FEATURE_QUIET;
414 if (mvm->fw->ucode_capa.capa[0] &
415 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
416 hw->wiphy->features |=
417 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
419 if (mvm->fw->ucode_capa.capa[0] &
420 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
421 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
423 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
425 /* currently FW API supports only one optional cipher scheme */
426 if (mvm->fw->cs[0].cipher) {
427 mvm->hw->n_cipher_schemes = 1;
428 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
431 #ifdef CONFIG_PM_SLEEP
432 if (iwl_mvm_is_d0i3_supported(mvm) &&
433 device_can_wakeup(mvm->trans->dev)) {
434 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
435 hw->wiphy->wowlan = &mvm->wowlan;
436 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
437 mvm->trans->ops->d3_suspend &&
438 mvm->trans->ops->d3_resume &&
439 device_can_wakeup(mvm->trans->dev)) {
440 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
441 WIPHY_WOWLAN_DISCONNECT |
442 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
443 WIPHY_WOWLAN_RFKILL_RELEASE;
444 if (!iwlwifi_mod_params.sw_crypto)
445 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
446 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
447 WIPHY_WOWLAN_4WAY_HANDSHAKE;
449 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
450 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
451 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
452 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
453 hw->wiphy->wowlan = &mvm->wowlan;
457 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
458 /* assign default bcast filtering configuration */
459 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
462 ret = iwl_mvm_leds_init(mvm);
466 ret = ieee80211_register_hw(mvm->hw);
468 iwl_mvm_leds_exit(mvm);
473 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
474 struct ieee80211_sta *sta,
477 struct iwl_mvm_sta *mvmsta;
481 * double check the IN_D0I3 flag both before and after
482 * taking the spinlock, in order to prevent taking
483 * the spinlock when not needed.
485 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
488 spin_lock(&mvm->d0i3_tx_lock);
490 * testing the flag again ensures the skb dequeue
491 * loop (on d0i3 exit) hasn't run yet.
493 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
496 mvmsta = iwl_mvm_sta_from_mac80211(sta);
497 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
498 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
501 __skb_queue_tail(&mvm->d0i3_tx, skb);
502 ieee80211_stop_queues(mvm->hw);
505 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
506 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
510 spin_unlock(&mvm->d0i3_tx_lock);
514 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
515 struct ieee80211_tx_control *control,
518 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
519 struct ieee80211_sta *sta = control->sta;
520 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
521 struct ieee80211_hdr *hdr = (void *)skb->data;
523 if (iwl_mvm_is_radio_killed(mvm)) {
524 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
528 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
529 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
532 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
533 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
534 ieee80211_is_mgmt(hdr->frame_control) &&
535 !ieee80211_is_deauth(hdr->frame_control) &&
536 !ieee80211_is_disassoc(hdr->frame_control) &&
537 !ieee80211_is_action(hdr->frame_control)))
541 if (iwl_mvm_defer_tx(mvm, sta, skb))
543 if (iwl_mvm_tx_skb(mvm, skb, sta))
548 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
552 ieee80211_free_txskb(hw, skb);
555 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
557 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
562 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
564 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
566 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
569 /* enabled by default */
573 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
574 struct ieee80211_vif *vif,
575 enum ieee80211_ampdu_mlme_action action,
576 struct ieee80211_sta *sta, u16 tid,
577 u16 *ssn, u8 buf_size)
579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
581 bool tx_agg_ref = false;
583 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
584 sta->addr, tid, action);
586 if (!(mvm->nvm_data->sku_cap_11n_enable))
589 /* return from D0i3 before starting a new Tx aggregation */
591 case IEEE80211_AMPDU_TX_START:
592 case IEEE80211_AMPDU_TX_STOP_CONT:
593 case IEEE80211_AMPDU_TX_STOP_FLUSH:
594 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
595 case IEEE80211_AMPDU_TX_OPERATIONAL:
597 * for tx start, wait synchronously until D0i3 exit to
598 * get the correct sequence number for the tid.
599 * additionally, some other ampdu actions use direct
600 * target access, which is not handled automatically
601 * by the trans layer (unlike commands), so wait for
602 * d0i3 exit in these cases as well.
604 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
614 mutex_lock(&mvm->mutex);
617 case IEEE80211_AMPDU_RX_START:
618 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
622 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
624 case IEEE80211_AMPDU_RX_STOP:
625 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
627 case IEEE80211_AMPDU_TX_START:
628 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
632 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
634 case IEEE80211_AMPDU_TX_STOP_CONT:
635 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
637 case IEEE80211_AMPDU_TX_STOP_FLUSH:
638 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
639 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
641 case IEEE80211_AMPDU_TX_OPERATIONAL:
642 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
649 mutex_unlock(&mvm->mutex);
652 * If the tid is marked as started, we won't use it for offloaded
653 * traffic on the next D0i3 entry. It's safe to unref.
656 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
661 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
662 struct ieee80211_vif *vif)
664 struct iwl_mvm *mvm = data;
665 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
667 mvmvif->uploaded = false;
668 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
670 /* does this make sense at all? */
673 spin_lock_bh(&mvm->time_event_lock);
674 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
675 spin_unlock_bh(&mvm->time_event_lock);
677 mvmvif->phy_ctxt = NULL;
678 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
681 #ifdef CONFIG_IWLWIFI_DEBUGFS
682 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
684 static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
685 struct iwl_fw_error_dump_file *dump_file;
686 struct iwl_fw_error_dump_data *dump_data;
687 struct iwl_fw_error_dump_info *dump_info;
688 struct iwl_mvm_dump_ptrs *fw_error_dump;
689 const struct fw_img *img;
690 u32 sram_len, sram_ofs;
691 u32 file_len, rxf_len;
695 lockdep_assert_held(&mvm->mutex);
697 if (mvm->fw_error_dump)
700 fw_error_dump = kzalloc(sizeof(*mvm->fw_error_dump), GFP_KERNEL);
704 img = &mvm->fw->img[mvm->cur_ucode];
705 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
706 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
708 /* reading buffer size */
709 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
710 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
712 /* the register holds the value divided by 128 */
713 rxf_len = rxf_len << 7;
715 file_len = sizeof(*dump_file) +
716 sizeof(*dump_data) * 3 +
721 dump_file = vzalloc(file_len);
723 kfree(fw_error_dump);
727 fw_error_dump->op_mode_ptr = dump_file;
729 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
730 dump_data = (void *)dump_file->data;
732 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
733 dump_data->len = cpu_to_le32(sizeof(*dump_info));
734 dump_info = (void *) dump_data->data;
735 dump_info->device_family =
736 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
737 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
738 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
739 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
740 sizeof(dump_info->fw_human_readable));
741 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
742 sizeof(dump_info->dev_human_readable));
743 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
744 sizeof(dump_info->bus_human_readable));
746 dump_data = iwl_fw_error_next_data(dump_data);
747 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
748 dump_data->len = cpu_to_le32(rxf_len);
750 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
751 u32 *rxf = (void *)dump_data->data;
754 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
755 iwl_trans_write_prph(mvm->trans,
756 RXF_LD_FENCE_OFFSET_ADDR,
758 rxf[i] = iwl_trans_read_prph(mvm->trans,
759 RXF_FIFO_RD_FENCE_ADDR);
761 iwl_trans_release_nic_access(mvm->trans, &flags);
764 dump_data = iwl_fw_error_next_data(dump_data);
765 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
766 dump_data->len = cpu_to_le32(sram_len);
767 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
770 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
771 fw_error_dump->op_mode_len = file_len;
772 if (fw_error_dump->trans_ptr)
773 file_len += fw_error_dump->trans_ptr->len;
774 dump_file->file_len = cpu_to_le32(file_len);
775 mvm->fw_error_dump = fw_error_dump;
777 /* notify the userspace about the error we had */
778 kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
782 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
784 iwl_mvm_fw_error_dump(mvm);
786 iwl_trans_stop_device(mvm->trans);
788 mvm->scan_status = IWL_MVM_SCAN_NONE;
789 mvm->ps_disabled = false;
791 /* just in case one was running */
792 ieee80211_remain_on_channel_expired(mvm->hw);
794 ieee80211_iterate_active_interfaces_atomic(
795 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
796 iwl_mvm_cleanup_iterator, mvm);
798 mvm->p2p_device_vif = NULL;
799 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
801 iwl_mvm_reset_phy_ctxts(mvm);
802 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
803 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
804 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
805 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
806 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
807 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
808 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
809 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
811 ieee80211_wake_queues(mvm->hw);
813 /* cleanup all stale references (scan, roc), but keep the
814 * ucode_down ref until reconfig is complete */
815 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
817 /* clear any stale d0i3 state */
818 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
821 mvm->rx_ba_sessions = 0;
824 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
828 lockdep_assert_held(&mvm->mutex);
830 /* Clean up some internal and mac80211 state on restart */
831 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
832 iwl_mvm_restart_cleanup(mvm);
834 ret = iwl_mvm_up(mvm);
836 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
837 /* Something went wrong - we need to finish some cleanup
838 * that normally iwl_mvm_mac_restart_complete() below
841 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
842 iwl_mvm_d0i3_enable_tx(mvm, NULL);
848 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
853 mutex_lock(&mvm->mutex);
854 ret = __iwl_mvm_mac_start(mvm);
855 mutex_unlock(&mvm->mutex);
860 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
862 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
865 mutex_lock(&mvm->mutex);
867 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
868 iwl_mvm_d0i3_enable_tx(mvm, NULL);
869 ret = iwl_mvm_update_quotas(mvm, NULL);
871 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
874 /* allow transport/FW low power modes */
875 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
877 mutex_unlock(&mvm->mutex);
880 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
882 lockdep_assert_held(&mvm->mutex);
884 /* disallow low power states when the FW is down */
885 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
887 /* async_handlers_wk is now blocked */
890 * The work item could be running or queued if the
891 * ROC time event stops just as we get here.
893 cancel_work_sync(&mvm->roc_done_wk);
895 iwl_trans_stop_device(mvm->trans);
897 iwl_mvm_async_handlers_purge(mvm);
898 /* async_handlers_list is empty and will stay empty: HW is stopped */
900 /* the fw is stopped, the aux sta is dead: clean up driver state */
901 iwl_mvm_del_aux_sta(mvm);
903 mvm->ucode_loaded = false;
906 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
908 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
910 flush_work(&mvm->d0i3_exit_work);
911 flush_work(&mvm->async_handlers_wk);
912 flush_work(&mvm->fw_error_dump_wk);
914 mutex_lock(&mvm->mutex);
915 __iwl_mvm_mac_stop(mvm);
916 mutex_unlock(&mvm->mutex);
919 * The worker might have been waiting for the mutex, let it run and
920 * discover that its list is now empty.
922 cancel_work_sync(&mvm->async_handlers_wk);
925 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
929 lockdep_assert_held(&mvm->mutex);
931 for (i = 0; i < NUM_PHY_CTX; i++)
932 if (!mvm->phy_ctxts[i].ref)
933 return &mvm->phy_ctxts[i];
935 IWL_ERR(mvm, "No available PHY context\n");
939 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
942 /* FW is in charge of regulatory enforcement */
943 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
944 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
945 .pwr_restriction = cpu_to_le16(tx_power),
948 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
949 sizeof(reduce_txpwr_cmd),
953 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
954 struct ieee80211_vif *vif)
956 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
957 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
961 * make sure D0i3 exit is completed, otherwise a target access
962 * during tx queue configuration could be done when still in
965 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
970 * Not much to do here. The stack will not allow interface
971 * types or combinations that we didn't advertise, so we
972 * don't really have to check the types.
975 mutex_lock(&mvm->mutex);
977 /* Allocate resources for the MAC context, and add it to the fw */
978 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
982 /* Counting number of interfaces is needed for legacy PM */
983 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
987 * The AP binding flow can be done only after the beacon
988 * template is configured (which happens only in the mac80211
989 * start_ap() flow), and adding the broadcast station can happen
990 * only after the binding.
991 * In addition, since modifying the MAC before adding a bcast
992 * station is not allowed by the FW, delay the adding of MAC context to
993 * the point where we can also add the bcast station.
994 * In short: there's not much we can do at this point, other than
995 * allocating resources :)
997 if (vif->type == NL80211_IFTYPE_AP ||
998 vif->type == NL80211_IFTYPE_ADHOC) {
999 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1001 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1005 iwl_mvm_vif_dbgfs_register(mvm, vif);
1009 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1013 ret = iwl_mvm_power_update_mac(mvm);
1017 /* beacon filtering */
1018 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1020 goto out_remove_mac;
1022 if (!mvm->bf_allowed_vif &&
1023 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1024 mvm->bf_allowed_vif = mvmvif;
1025 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1026 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1030 * P2P_DEVICE interface does not have a channel context assigned to it,
1031 * so a dedicated PHY context is allocated to it and the corresponding
1032 * MAC context is bound to it at this stage.
1034 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1036 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1037 if (!mvmvif->phy_ctxt) {
1042 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1043 ret = iwl_mvm_binding_add_vif(mvm, vif);
1047 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1051 /* Save a pointer to p2p device vif, so it can later be used to
1052 * update the p2p device MAC when a GO is started/stopped */
1053 mvm->p2p_device_vif = vif;
1056 iwl_mvm_vif_dbgfs_register(mvm, vif);
1060 iwl_mvm_binding_remove_vif(mvm, vif);
1062 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1064 if (mvm->bf_allowed_vif == mvmvif) {
1065 mvm->bf_allowed_vif = NULL;
1066 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1067 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1070 mvmvif->phy_ctxt = NULL;
1071 iwl_mvm_mac_ctxt_remove(mvm, vif);
1073 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1076 iwl_mvm_mac_ctxt_release(mvm, vif);
1078 mutex_unlock(&mvm->mutex);
1080 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1085 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1086 struct ieee80211_vif *vif)
1088 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(mvm, vif);
1091 mutex_lock(&mvm->mutex);
1092 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1093 mutex_unlock(&mvm->mutex);
1096 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1098 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1099 * We assume here that all the packets sent to the OFFCHANNEL
1100 * queue are sent in ROC session.
1102 flush_work(&mvm->roc_done_wk);
1105 * By now, all the AC queues are empty. The AGG queues are
1106 * empty too. We already got all the Tx responses for all the
1107 * packets in the queues. The drain work can have been
1108 * triggered. Flush it.
1110 flush_work(&mvm->sta_drained_wk);
1114 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1115 struct ieee80211_vif *vif)
1117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1118 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1120 iwl_mvm_prepare_mac_removal(mvm, vif);
1122 mutex_lock(&mvm->mutex);
1124 if (mvm->bf_allowed_vif == mvmvif) {
1125 mvm->bf_allowed_vif = NULL;
1126 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1127 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1130 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1133 * For AP/GO interface, the tear down of the resources allocated to the
1134 * interface is be handled as part of the stop_ap flow.
1136 if (vif->type == NL80211_IFTYPE_AP ||
1137 vif->type == NL80211_IFTYPE_ADHOC) {
1138 #ifdef CONFIG_NL80211_TESTMODE
1139 if (vif == mvm->noa_vif) {
1140 mvm->noa_vif = NULL;
1141 mvm->noa_duration = 0;
1144 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1148 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1149 mvm->p2p_device_vif = NULL;
1150 iwl_mvm_rm_bcast_sta(mvm, vif);
1151 iwl_mvm_binding_remove_vif(mvm, vif);
1152 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1153 mvmvif->phy_ctxt = NULL;
1156 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1159 iwl_mvm_power_update_mac(mvm);
1160 iwl_mvm_mac_ctxt_remove(mvm, vif);
1163 iwl_mvm_mac_ctxt_release(mvm, vif);
1164 mutex_unlock(&mvm->mutex);
1167 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1172 struct iwl_mvm_mc_iter_data {
1173 struct iwl_mvm *mvm;
1177 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1178 struct ieee80211_vif *vif)
1180 struct iwl_mvm_mc_iter_data *data = _data;
1181 struct iwl_mvm *mvm = data->mvm;
1182 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1185 /* if we don't have free ports, mcast frames will be dropped */
1186 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1189 if (vif->type != NL80211_IFTYPE_STATION ||
1190 !vif->bss_conf.assoc)
1193 cmd->port_id = data->port_id++;
1194 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1195 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1197 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1199 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1202 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1204 struct iwl_mvm_mc_iter_data iter_data = {
1208 lockdep_assert_held(&mvm->mutex);
1210 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1213 ieee80211_iterate_active_interfaces_atomic(
1214 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1215 iwl_mvm_mc_iface_iterator, &iter_data);
1218 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1219 struct netdev_hw_addr_list *mc_list)
1221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1222 struct iwl_mcast_filter_cmd *cmd;
1223 struct netdev_hw_addr *addr;
1228 addr_count = netdev_hw_addr_list_count(mc_list);
1229 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1230 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1234 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1235 cmd = kzalloc(len, GFP_ATOMIC);
1241 return (u64)(unsigned long)cmd;
1244 netdev_hw_addr_list_for_each(addr, mc_list) {
1245 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1246 cmd->count, addr->addr);
1247 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1248 addr->addr, ETH_ALEN);
1252 return (u64)(unsigned long)cmd;
1255 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1256 unsigned int changed_flags,
1257 unsigned int *total_flags,
1260 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1261 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1263 mutex_lock(&mvm->mutex);
1265 /* replace previous configuration */
1266 kfree(mvm->mcast_filter_cmd);
1267 mvm->mcast_filter_cmd = cmd;
1272 iwl_mvm_recalc_multicast(mvm);
1274 mutex_unlock(&mvm->mutex);
1278 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1279 struct iwl_bcast_iter_data {
1280 struct iwl_mvm *mvm;
1281 struct iwl_bcast_filter_cmd *cmd;
1286 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1287 const struct iwl_fw_bcast_filter *in_filter,
1288 struct iwl_fw_bcast_filter *out_filter)
1290 struct iwl_fw_bcast_filter_attr *attr;
1293 memcpy(out_filter, in_filter, sizeof(*out_filter));
1295 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1296 attr = &out_filter->attrs[i];
1301 switch (attr->reserved1) {
1302 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1303 if (vif->bss_conf.arp_addr_cnt != 1) {
1308 attr->val = vif->bss_conf.arp_addr_list[0];
1310 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1311 attr->val = *(__be32 *)&vif->addr[2];
1316 attr->reserved1 = 0;
1317 out_filter->num_attrs++;
1321 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1322 struct ieee80211_vif *vif)
1324 struct iwl_bcast_iter_data *data = _data;
1325 struct iwl_mvm *mvm = data->mvm;
1326 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1327 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1328 struct iwl_fw_bcast_mac *bcast_mac;
1331 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1334 bcast_mac = &cmd->macs[mvmvif->id];
1337 * enable filtering only for associated stations, but not for P2P
1340 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1341 !vif->bss_conf.assoc)
1344 bcast_mac->default_discard = 1;
1346 /* copy all configured filters */
1347 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1349 * Make sure we don't exceed our filters limit.
1350 * if there is still a valid filter to be configured,
1351 * be on the safe side and just allow bcast for this mac.
1353 if (WARN_ON_ONCE(data->current_filter >=
1354 ARRAY_SIZE(cmd->filters))) {
1355 bcast_mac->default_discard = 0;
1356 bcast_mac->attached_filters = 0;
1360 iwl_mvm_set_bcast_filter(vif,
1361 &mvm->bcast_filters[i],
1362 &cmd->filters[data->current_filter]);
1364 /* skip current filter if it contains no attributes */
1365 if (!cmd->filters[data->current_filter].num_attrs)
1368 /* attach the filter to current mac */
1369 bcast_mac->attached_filters |=
1370 cpu_to_le16(BIT(data->current_filter));
1372 data->current_filter++;
1376 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1377 struct iwl_bcast_filter_cmd *cmd)
1379 struct iwl_bcast_iter_data iter_data = {
1384 memset(cmd, 0, sizeof(*cmd));
1385 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1386 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1388 #ifdef CONFIG_IWLWIFI_DEBUGFS
1389 /* use debugfs filters/macs if override is configured */
1390 if (mvm->dbgfs_bcast_filtering.override) {
1391 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1392 sizeof(cmd->filters));
1393 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1399 /* if no filters are configured, do nothing */
1400 if (!mvm->bcast_filters)
1403 /* configure and attach these filters for each associated sta vif */
1404 ieee80211_iterate_active_interfaces(
1405 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1406 iwl_mvm_bcast_filter_iterator, &iter_data);
1410 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1411 struct ieee80211_vif *vif)
1413 struct iwl_bcast_filter_cmd cmd;
1415 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1418 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1421 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1425 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1426 struct ieee80211_vif *vif)
1432 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1433 struct ieee80211_vif *vif,
1434 struct ieee80211_bss_conf *bss_conf,
1437 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1441 * Re-calculate the tsf id, as the master-slave relations depend on the
1442 * beacon interval, which was not known when the station interface was
1445 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1446 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1449 * If we're not associated yet, take the (new) BSSID before associating
1450 * so the firmware knows. If we're already associated, then use the old
1451 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1452 * branch for disassociation below.
1454 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1455 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1457 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1459 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1461 /* after sending it once, adopt mac80211 data */
1462 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1463 mvmvif->associated = bss_conf->assoc;
1465 if (changes & BSS_CHANGED_ASSOC) {
1466 if (bss_conf->assoc) {
1467 /* add quota for this interface */
1468 ret = iwl_mvm_update_quotas(mvm, NULL);
1470 IWL_ERR(mvm, "failed to update quotas\n");
1474 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1477 * If we're restarting then the firmware will
1478 * obviously have lost synchronisation with
1479 * the AP. It will attempt to synchronise by
1480 * itself, but we can make it more reliable by
1481 * scheduling a session protection time event.
1483 * The firmware needs to receive a beacon to
1484 * catch up with synchronisation, use 110% of
1485 * the beacon interval.
1487 * Set a large maximum delay to allow for more
1488 * than a single interface.
1490 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1491 iwl_mvm_protect_session(mvm, vif, dur, dur,
1495 iwl_mvm_sf_update(mvm, vif, false);
1496 iwl_mvm_power_vif_assoc(mvm, vif);
1498 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1499 iwl_mvm_update_smps(mvm, vif,
1500 IWL_MVM_SMPS_REQ_PROT,
1501 IEEE80211_SMPS_DYNAMIC);
1503 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1505 * If update fails - SF might be running in associated
1506 * mode while disassociated - which is forbidden.
1508 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1509 "Failed to update SF upon disassociation\n");
1511 /* remove AP station now that the MAC is unassoc */
1512 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1514 IWL_ERR(mvm, "failed to remove AP station\n");
1516 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1517 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1518 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1519 /* remove quota for this interface */
1520 ret = iwl_mvm_update_quotas(mvm, NULL);
1522 IWL_ERR(mvm, "failed to update quotas\n");
1525 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1527 /* this will take the cleared BSSID from bss_conf */
1528 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1531 "failed to update MAC %pM (clear after unassoc)\n",
1535 iwl_mvm_recalc_multicast(mvm);
1536 iwl_mvm_configure_bcast_filter(mvm, vif);
1538 /* reset rssi values */
1539 mvmvif->bf_data.ave_beacon_signal = 0;
1541 iwl_mvm_bt_coex_vif_change(mvm);
1542 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1543 IEEE80211_SMPS_AUTOMATIC);
1544 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1546 * We received a beacon _after_ association so
1547 * remove the session protection.
1549 iwl_mvm_remove_time_event(mvm, mvmvif,
1550 &mvmvif->time_event_data);
1553 if (changes & BSS_CHANGED_BEACON_INFO) {
1554 iwl_mvm_sf_update(mvm, vif, false);
1555 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1558 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1559 ret = iwl_mvm_power_update_mac(mvm);
1561 IWL_ERR(mvm, "failed to update power mode\n");
1564 if (changes & BSS_CHANGED_TXPOWER) {
1565 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1567 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1570 if (changes & BSS_CHANGED_CQM) {
1571 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1572 /* reset cqm events tracking */
1573 mvmvif->bf_data.last_cqm_event = 0;
1574 if (mvmvif->bf_data.bf_enabled) {
1575 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1578 "failed to update CQM thresholds\n");
1582 if (changes & BSS_CHANGED_ARP_FILTER) {
1583 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1584 iwl_mvm_configure_bcast_filter(mvm, vif);
1588 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1589 struct ieee80211_vif *vif)
1591 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1592 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1596 * iwl_mvm_mac_ctxt_add() might read directly from the device
1597 * (the system time), so make sure it is available.
1599 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1603 mutex_lock(&mvm->mutex);
1605 /* Send the beacon template */
1606 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1611 * Re-calculate the tsf id, as the master-slave relations depend on the
1612 * beacon interval, which was not known when the AP interface was added.
1614 if (vif->type == NL80211_IFTYPE_AP)
1615 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1617 /* Add the mac context */
1618 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1622 /* Perform the binding */
1623 ret = iwl_mvm_binding_add_vif(mvm, vif);
1627 /* Send the bcast station. At this stage the TBTT and DTIM time events
1628 * are added and applied to the scheduler */
1629 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1633 /* must be set before quota calculations */
1634 mvmvif->ap_ibss_active = true;
1636 /* power updated needs to be done before quotas */
1637 iwl_mvm_power_update_mac(mvm);
1639 ret = iwl_mvm_update_quotas(mvm, NULL);
1641 goto out_quota_failed;
1643 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1644 if (vif->p2p && mvm->p2p_device_vif)
1645 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1647 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1649 iwl_mvm_bt_coex_vif_change(mvm);
1651 /* we don't support TDLS during DCM */
1652 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1653 iwl_mvm_teardown_tdls_peers(mvm);
1655 mutex_unlock(&mvm->mutex);
1659 iwl_mvm_power_update_mac(mvm);
1660 mvmvif->ap_ibss_active = false;
1661 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1663 iwl_mvm_binding_remove_vif(mvm, vif);
1665 iwl_mvm_mac_ctxt_remove(mvm, vif);
1667 mutex_unlock(&mvm->mutex);
1668 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
1672 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1673 struct ieee80211_vif *vif)
1675 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1676 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1678 iwl_mvm_prepare_mac_removal(mvm, vif);
1680 mutex_lock(&mvm->mutex);
1682 /* Handle AP stop while in CSA */
1683 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1684 iwl_mvm_remove_time_event(mvm, mvmvif,
1685 &mvmvif->time_event_data);
1686 RCU_INIT_POINTER(mvm->csa_vif, NULL);
1689 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1690 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1691 mvm->csa_tx_block_bcn_timeout = 0;
1694 mvmvif->ap_ibss_active = false;
1695 mvm->ap_last_beacon_gp2 = 0;
1697 iwl_mvm_bt_coex_vif_change(mvm);
1699 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1701 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1702 if (vif->p2p && mvm->p2p_device_vif)
1703 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1705 iwl_mvm_update_quotas(mvm, NULL);
1706 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1707 iwl_mvm_binding_remove_vif(mvm, vif);
1709 iwl_mvm_power_update_mac(mvm);
1711 iwl_mvm_mac_ctxt_remove(mvm, vif);
1713 mutex_unlock(&mvm->mutex);
1717 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1718 struct ieee80211_vif *vif,
1719 struct ieee80211_bss_conf *bss_conf,
1722 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1724 /* Changes will be applied when the AP/IBSS is started */
1725 if (!mvmvif->ap_ibss_active)
1728 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1729 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
1730 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
1731 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1733 /* Need to send a new beacon template to the FW */
1734 if (changes & BSS_CHANGED_BEACON &&
1735 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1736 IWL_WARN(mvm, "Failed updating beacon data\n");
1738 if (changes & BSS_CHANGED_TXPOWER) {
1739 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1741 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1746 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1747 struct ieee80211_vif *vif,
1748 struct ieee80211_bss_conf *bss_conf,
1751 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1754 * iwl_mvm_bss_info_changed_station() might call
1755 * iwl_mvm_protect_session(), which reads directly from
1756 * the device (the system time), so make sure it is available.
1758 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1761 mutex_lock(&mvm->mutex);
1763 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1764 iwl_mvm_scan_offload_stop(mvm, true);
1766 switch (vif->type) {
1767 case NL80211_IFTYPE_STATION:
1768 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1770 case NL80211_IFTYPE_AP:
1771 case NL80211_IFTYPE_ADHOC:
1772 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1775 /* shouldn't happen */
1779 mutex_unlock(&mvm->mutex);
1780 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
1783 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1784 enum iwl_scan_status scan_type)
1787 bool wait_for_handlers = false;
1789 mutex_lock(&mvm->mutex);
1791 if (mvm->scan_status != scan_type) {
1793 /* make sure there are no pending notifications */
1794 wait_for_handlers = true;
1798 switch (scan_type) {
1799 case IWL_MVM_SCAN_SCHED:
1800 ret = iwl_mvm_scan_offload_stop(mvm, true);
1802 case IWL_MVM_SCAN_OS:
1803 ret = iwl_mvm_cancel_scan(mvm);
1805 case IWL_MVM_SCAN_NONE:
1814 wait_for_handlers = true;
1816 mutex_unlock(&mvm->mutex);
1818 /* make sure we consume the completion notification */
1819 if (wait_for_handlers)
1820 iwl_mvm_wait_for_async_handlers(mvm);
1824 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1825 struct ieee80211_vif *vif,
1826 struct ieee80211_scan_request *hw_req)
1828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1829 struct cfg80211_scan_request *req = &hw_req->req;
1832 if (req->n_channels == 0 ||
1833 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
1836 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1840 mutex_lock(&mvm->mutex);
1842 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1847 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1849 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1850 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
1852 ret = iwl_mvm_scan_request(mvm, vif, req);
1855 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1857 mutex_unlock(&mvm->mutex);
1861 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1862 struct ieee80211_vif *vif)
1864 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1866 mutex_lock(&mvm->mutex);
1868 iwl_mvm_cancel_scan(mvm);
1870 mutex_unlock(&mvm->mutex);
1874 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1875 struct ieee80211_sta *sta, u16 tids,
1877 enum ieee80211_frame_release_type reason,
1880 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1882 /* Called when we need to transmit (a) frame(s) from mac80211 */
1884 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1885 tids, more_data, false);
1889 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1890 struct ieee80211_sta *sta, u16 tids,
1892 enum ieee80211_frame_release_type reason,
1895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1897 /* Called when we need to transmit (a) frame(s) from agg queue */
1899 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1900 tids, more_data, true);
1903 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1904 struct ieee80211_vif *vif,
1905 enum sta_notify_cmd cmd,
1906 struct ieee80211_sta *sta)
1908 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1909 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1913 case STA_NOTIFY_SLEEP:
1914 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1915 ieee80211_sta_block_awake(hw, sta, true);
1916 spin_lock_bh(&mvmsta->lock);
1917 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1918 struct iwl_mvm_tid_data *tid_data;
1920 tid_data = &mvmsta->tid_data[tid];
1921 if (tid_data->state != IWL_AGG_ON &&
1922 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1924 if (iwl_mvm_tid_queued(tid_data) == 0)
1926 ieee80211_sta_set_buffered(sta, tid, true);
1928 spin_unlock_bh(&mvmsta->lock);
1930 * The fw updates the STA to be asleep. Tx packets on the Tx
1931 * queues to this station will not be transmitted. The fw will
1932 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1935 case STA_NOTIFY_AWAKE:
1936 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1938 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1945 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1946 struct ieee80211_vif *vif,
1947 struct ieee80211_sta *sta)
1949 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1950 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1953 * This is called before mac80211 does RCU synchronisation,
1954 * so here we already invalidate our internal RCU-protected
1955 * station pointer. The rest of the code will thus no longer
1956 * be able to find the station this way, and we don't rely
1957 * on further RCU synchronisation after the sta_state()
1958 * callback deleted the station.
1960 mutex_lock(&mvm->mutex);
1961 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1962 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1964 mutex_unlock(&mvm->mutex);
1967 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1968 struct ieee80211_vif *vif,
1969 struct ieee80211_sta *sta,
1970 enum ieee80211_sta_state old_state,
1971 enum ieee80211_sta_state new_state)
1973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1974 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1977 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1978 sta->addr, old_state, new_state);
1980 /* this would be a mac80211 bug ... but don't crash */
1981 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1984 /* if a STA is being removed, reuse its ID */
1985 flush_work(&mvm->sta_drained_wk);
1987 mutex_lock(&mvm->mutex);
1988 if (old_state == IEEE80211_STA_NOTEXIST &&
1989 new_state == IEEE80211_STA_NONE) {
1991 * Firmware bug - it'll crash if the beacon interval is less
1992 * than 16. We can't avoid connecting at all, so refuse the
1993 * station state change, this will cause mac80211 to abandon
1994 * attempts to connect to this AP, and eventually wpa_s will
1995 * blacklist the AP...
1997 if (vif->type == NL80211_IFTYPE_STATION &&
1998 vif->bss_conf.beacon_int < 16) {
2000 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2001 sta->addr, vif->bss_conf.beacon_int);
2008 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2009 IWL_MVM_TDLS_STA_COUNT ||
2010 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2011 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2016 ret = iwl_mvm_add_sta(mvm, vif, sta);
2017 if (sta->tdls && ret == 0)
2018 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2019 } else if (old_state == IEEE80211_STA_NONE &&
2020 new_state == IEEE80211_STA_AUTH) {
2022 * EBS may be disabled due to previous failures reported by FW.
2023 * Reset EBS status here assuming environment has been changed.
2025 mvm->last_ebs_successful = true;
2027 } else if (old_state == IEEE80211_STA_AUTH &&
2028 new_state == IEEE80211_STA_ASSOC) {
2029 ret = iwl_mvm_update_sta(mvm, vif, sta);
2031 iwl_mvm_rs_rate_init(mvm, sta,
2032 mvmvif->phy_ctxt->channel->band,
2034 } else if (old_state == IEEE80211_STA_ASSOC &&
2035 new_state == IEEE80211_STA_AUTHORIZED) {
2037 /* we don't support TDLS during DCM */
2038 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2039 iwl_mvm_teardown_tdls_peers(mvm);
2041 /* enable beacon filtering */
2042 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2044 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2045 new_state == IEEE80211_STA_ASSOC) {
2046 /* disable beacon filtering */
2047 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2049 } else if (old_state == IEEE80211_STA_ASSOC &&
2050 new_state == IEEE80211_STA_AUTH) {
2052 } else if (old_state == IEEE80211_STA_AUTH &&
2053 new_state == IEEE80211_STA_NONE) {
2055 } else if (old_state == IEEE80211_STA_NONE &&
2056 new_state == IEEE80211_STA_NOTEXIST) {
2057 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2059 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2064 mutex_unlock(&mvm->mutex);
2069 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2071 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2073 mvm->rts_threshold = value;
2078 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2079 struct ieee80211_vif *vif,
2080 struct ieee80211_sta *sta, u32 changed)
2082 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2084 if (vif->type == NL80211_IFTYPE_STATION &&
2085 changed & IEEE80211_RC_NSS_CHANGED)
2086 iwl_mvm_sf_update(mvm, vif, false);
2089 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2090 struct ieee80211_vif *vif, u16 ac,
2091 const struct ieee80211_tx_queue_params *params)
2093 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2094 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2096 mvmvif->queue_params[ac] = *params;
2099 * No need to update right away, we'll get BSS_CHANGED_QOS
2100 * The exception is P2P_DEVICE interface which needs immediate update.
2102 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2105 mutex_lock(&mvm->mutex);
2106 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2107 mutex_unlock(&mvm->mutex);
2113 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2114 struct ieee80211_vif *vif)
2116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2117 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2118 200 + vif->bss_conf.beacon_int);
2119 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2120 100 + vif->bss_conf.beacon_int);
2122 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2126 * iwl_mvm_protect_session() reads directly from the device
2127 * (the system time), so make sure it is available.
2129 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2132 mutex_lock(&mvm->mutex);
2133 /* Try really hard to protect the session and hear a beacon */
2134 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2135 mutex_unlock(&mvm->mutex);
2137 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2140 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2141 struct ieee80211_vif *vif,
2142 struct cfg80211_sched_scan_request *req,
2143 struct ieee80211_scan_ies *ies)
2145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2148 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2152 mutex_lock(&mvm->mutex);
2154 /* Newest FW fixes sched scan while connected on another interface */
2155 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2156 if (!vif->bss_conf.idle) {
2160 } else if (!iwl_mvm_is_idle(mvm)) {
2165 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2170 mvm->scan_status = IWL_MVM_SCAN_SCHED;
2172 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) {
2173 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
2178 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
2182 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2183 ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies);
2185 ret = iwl_mvm_sched_scan_start(mvm, req);
2190 mvm->scan_status = IWL_MVM_SCAN_NONE;
2192 mutex_unlock(&mvm->mutex);
2196 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2197 struct ieee80211_vif *vif)
2199 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2202 mutex_lock(&mvm->mutex);
2203 ret = iwl_mvm_scan_offload_stop(mvm, false);
2204 mutex_unlock(&mvm->mutex);
2205 iwl_mvm_wait_for_async_handlers(mvm);
2210 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2211 enum set_key_cmd cmd,
2212 struct ieee80211_vif *vif,
2213 struct ieee80211_sta *sta,
2214 struct ieee80211_key_conf *key)
2216 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2219 if (iwlwifi_mod_params.sw_crypto) {
2220 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2224 switch (key->cipher) {
2225 case WLAN_CIPHER_SUITE_TKIP:
2226 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2228 case WLAN_CIPHER_SUITE_CCMP:
2229 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2231 case WLAN_CIPHER_SUITE_AES_CMAC:
2232 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2234 case WLAN_CIPHER_SUITE_WEP40:
2235 case WLAN_CIPHER_SUITE_WEP104:
2237 * Support for TX only, at least for now, so accept
2238 * the key and do nothing else. Then mac80211 will
2239 * pass it for TX but we don't have to use it for RX.
2243 /* currently FW supports only one optional cipher scheme */
2244 if (hw->n_cipher_schemes &&
2245 hw->cipher_schemes->cipher == key->cipher)
2246 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2251 mutex_lock(&mvm->mutex);
2255 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2256 vif->type == NL80211_IFTYPE_AP) && !sta) {
2258 * GTK on AP interface is a TX-only key, return 0;
2259 * on IBSS they're per-station and because we're lazy
2260 * we don't support them for RX, so do the same.
2263 key->hw_key_idx = STA_KEY_IDX_INVALID;
2267 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2268 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2270 IWL_WARN(mvm, "set key failed\n");
2272 * can't add key for RX, but we don't need it
2273 * in the device for TX so still return 0
2275 key->hw_key_idx = STA_KEY_IDX_INVALID;
2281 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2286 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2287 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2293 mutex_unlock(&mvm->mutex);
2297 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2298 struct ieee80211_vif *vif,
2299 struct ieee80211_key_conf *keyconf,
2300 struct ieee80211_sta *sta,
2301 u32 iv32, u16 *phase1key)
2303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2305 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2308 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2312 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2313 struct iwl_rx_packet *pkt, void *data)
2315 struct iwl_mvm *mvm =
2316 container_of(notif_wait, struct iwl_mvm, notif_wait);
2317 struct iwl_hs20_roc_res *resp;
2318 int resp_len = iwl_rx_packet_payload_len(pkt);
2319 struct iwl_mvm_time_event_data *te_data = data;
2321 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2324 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2325 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2329 resp = (void *)pkt->data;
2332 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2333 resp->status, resp->event_unique_id);
2335 te_data->uid = le32_to_cpu(resp->event_unique_id);
2336 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2339 spin_lock_bh(&mvm->time_event_lock);
2340 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2341 spin_unlock_bh(&mvm->time_event_lock);
2346 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2347 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2348 struct ieee80211_channel *channel,
2349 struct ieee80211_vif *vif,
2352 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2353 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2354 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2355 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2356 struct iwl_notification_wait wait_time_event;
2357 struct iwl_hs20_roc_req aux_roc_req = {
2358 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2360 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2361 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2362 /* Set the channel info data */
2363 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2364 PHY_BAND_24 : PHY_BAND_5,
2365 .channel_info.channel = channel->hw_value,
2366 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2367 /* Set the time and duration */
2368 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2369 .apply_time_max_delay =
2370 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2371 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2374 /* Set the node address */
2375 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2378 te_data->duration = duration;
2379 te_data->id = HOT_SPOT_CMD;
2381 lockdep_assert_held(&mvm->mutex);
2383 spin_lock_bh(&mvm->time_event_lock);
2384 list_add_tail(&te_data->list, &mvm->time_event_list);
2385 spin_unlock_bh(&mvm->time_event_lock);
2388 * Use a notification wait, which really just processes the
2389 * command response and doesn't wait for anything, in order
2390 * to be able to process the response and get the UID inside
2391 * the RX path. Using CMD_WANT_SKB doesn't work because it
2392 * stores the buffer and then wakes up this thread, by which
2393 * time another notification (that the time event started)
2394 * might already be processed unsuccessfully.
2396 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2397 time_event_response,
2398 ARRAY_SIZE(time_event_response),
2399 iwl_mvm_rx_aux_roc, te_data);
2401 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2405 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2406 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2410 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2411 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2412 /* should never fail */
2417 spin_lock_bh(&mvm->time_event_lock);
2418 iwl_mvm_te_clear_data(mvm, te_data);
2419 spin_unlock_bh(&mvm->time_event_lock);
2425 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2426 struct ieee80211_vif *vif,
2427 struct ieee80211_channel *channel,
2429 enum ieee80211_roc_type type)
2431 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2432 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2433 struct cfg80211_chan_def chandef;
2434 struct iwl_mvm_phy_ctxt *phy_ctxt;
2437 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2440 switch (vif->type) {
2441 case NL80211_IFTYPE_STATION:
2442 /* Use aux roc framework (HS20) */
2443 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2446 case NL80211_IFTYPE_P2P_DEVICE:
2450 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2454 mutex_lock(&mvm->mutex);
2456 for (i = 0; i < NUM_PHY_CTX; i++) {
2457 phy_ctxt = &mvm->phy_ctxts[i];
2458 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2461 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2463 * Unbind the P2P_DEVICE from the current PHY context,
2464 * and if the PHY context is not used remove it.
2466 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2467 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2470 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2472 /* Bind the P2P_DEVICE to the current PHY Context */
2473 mvmvif->phy_ctxt = phy_ctxt;
2475 ret = iwl_mvm_binding_add_vif(mvm, vif);
2476 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2479 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2480 goto schedule_time_event;
2484 /* Need to update the PHY context only if the ROC channel changed */
2485 if (channel == mvmvif->phy_ctxt->channel)
2486 goto schedule_time_event;
2488 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2491 * Change the PHY context configuration as it is currently referenced
2492 * only by the P2P Device MAC
2494 if (mvmvif->phy_ctxt->ref == 1) {
2495 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2501 * The PHY context is shared with other MACs. Need to remove the
2502 * P2P Device from the binding, allocate an new PHY context and
2503 * create a new binding
2505 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2511 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2514 IWL_ERR(mvm, "Failed to change PHY context\n");
2518 /* Unbind the P2P_DEVICE from the current PHY context */
2519 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2520 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2523 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2525 /* Bind the P2P_DEVICE to the new allocated PHY context */
2526 mvmvif->phy_ctxt = phy_ctxt;
2528 ret = iwl_mvm_binding_add_vif(mvm, vif);
2529 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2532 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2535 schedule_time_event:
2536 /* Schedule the time events */
2537 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2540 mutex_unlock(&mvm->mutex);
2541 IWL_DEBUG_MAC80211(mvm, "leave\n");
2545 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2547 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2549 IWL_DEBUG_MAC80211(mvm, "enter\n");
2551 mutex_lock(&mvm->mutex);
2552 iwl_mvm_stop_p2p_roc(mvm);
2553 mutex_unlock(&mvm->mutex);
2555 IWL_DEBUG_MAC80211(mvm, "leave\n");
2559 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2560 struct ieee80211_chanctx_conf *ctx)
2562 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2563 struct iwl_mvm_phy_ctxt *phy_ctxt;
2566 lockdep_assert_held(&mvm->mutex);
2568 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2570 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2576 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2577 ctx->rx_chains_static,
2578 ctx->rx_chains_dynamic);
2580 IWL_ERR(mvm, "Failed to add PHY context\n");
2584 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2585 *phy_ctxt_id = phy_ctxt->id;
2590 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2591 struct ieee80211_chanctx_conf *ctx)
2593 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2596 mutex_lock(&mvm->mutex);
2597 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2598 mutex_unlock(&mvm->mutex);
2603 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2604 struct ieee80211_chanctx_conf *ctx)
2606 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2607 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2609 lockdep_assert_held(&mvm->mutex);
2611 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2614 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2615 struct ieee80211_chanctx_conf *ctx)
2617 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2619 mutex_lock(&mvm->mutex);
2620 __iwl_mvm_remove_chanctx(mvm, ctx);
2621 mutex_unlock(&mvm->mutex);
2624 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2625 struct ieee80211_chanctx_conf *ctx,
2628 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2629 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2630 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2632 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2633 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2634 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2635 IEEE80211_CHANCTX_CHANGE_RADAR |
2636 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2637 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2638 phy_ctxt->ref, changed))
2641 mutex_lock(&mvm->mutex);
2642 iwl_mvm_bt_coex_vif_change(mvm);
2643 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2644 ctx->rx_chains_static,
2645 ctx->rx_chains_dynamic);
2646 mutex_unlock(&mvm->mutex);
2649 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2650 struct ieee80211_vif *vif,
2651 struct ieee80211_chanctx_conf *ctx,
2652 bool switching_chanctx)
2654 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2655 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2656 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2659 lockdep_assert_held(&mvm->mutex);
2661 mvmvif->phy_ctxt = phy_ctxt;
2663 switch (vif->type) {
2664 case NL80211_IFTYPE_AP:
2665 /* Unless it's a CSA flow we have nothing to do here */
2666 if (vif->csa_active) {
2667 mvmvif->ap_ibss_active = true;
2670 case NL80211_IFTYPE_ADHOC:
2672 * The AP binding flow is handled as part of the start_ap flow
2673 * (in bss_info_changed), similarly for IBSS.
2677 case NL80211_IFTYPE_STATION:
2679 case NL80211_IFTYPE_MONITOR:
2680 /* always disable PS when a monitor interface is active */
2681 mvmvif->ps_disabled = true;
2688 ret = iwl_mvm_binding_add_vif(mvm, vif);
2693 * Power state must be updated before quotas,
2694 * otherwise fw will complain.
2696 iwl_mvm_power_update_mac(mvm);
2698 /* Setting the quota at this stage is only required for monitor
2699 * interfaces. For the other types, the bss_info changed flow
2700 * will handle quota settings.
2702 if (vif->type == NL80211_IFTYPE_MONITOR) {
2703 mvmvif->monitor_active = true;
2704 ret = iwl_mvm_update_quotas(mvm, NULL);
2706 goto out_remove_binding;
2709 /* Handle binding during CSA */
2710 if ((vif->type == NL80211_IFTYPE_AP) ||
2711 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
2712 iwl_mvm_update_quotas(mvm, NULL);
2713 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2716 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2717 struct iwl_mvm_sta *mvmsta;
2719 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2722 if (WARN_ON(!mvmsta))
2725 /* TODO: only re-enable after the first beacon */
2726 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2732 iwl_mvm_binding_remove_vif(mvm, vif);
2733 iwl_mvm_power_update_mac(mvm);
2736 mvmvif->phy_ctxt = NULL;
2739 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2740 struct ieee80211_vif *vif,
2741 struct ieee80211_chanctx_conf *ctx)
2743 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2746 mutex_lock(&mvm->mutex);
2747 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
2748 mutex_unlock(&mvm->mutex);
2753 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2754 struct ieee80211_vif *vif,
2755 struct ieee80211_chanctx_conf *ctx,
2756 bool switching_chanctx)
2758 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2759 struct ieee80211_vif *disabled_vif = NULL;
2760 struct iwl_mvm_sta *mvmsta;
2762 lockdep_assert_held(&mvm->mutex);
2764 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2766 switch (vif->type) {
2767 case NL80211_IFTYPE_ADHOC:
2769 case NL80211_IFTYPE_MONITOR:
2770 mvmvif->monitor_active = false;
2771 mvmvif->ps_disabled = false;
2773 case NL80211_IFTYPE_AP:
2774 /* This part is triggered only during CSA */
2775 if (!vif->csa_active || !mvmvif->ap_ibss_active)
2778 /* Set CS bit on all the stations */
2779 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2781 /* Save blocked iface, the timeout is set on the next beacon */
2782 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2784 mvmvif->ap_ibss_active = false;
2786 case NL80211_IFTYPE_STATION:
2787 if (!switching_chanctx)
2792 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2795 if (!WARN_ON(!mvmsta))
2796 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2798 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
2804 iwl_mvm_update_quotas(mvm, disabled_vif);
2805 iwl_mvm_binding_remove_vif(mvm, vif);
2808 mvmvif->phy_ctxt = NULL;
2809 iwl_mvm_power_update_mac(mvm);
2812 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2813 struct ieee80211_vif *vif,
2814 struct ieee80211_chanctx_conf *ctx)
2816 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2818 mutex_lock(&mvm->mutex);
2819 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
2820 mutex_unlock(&mvm->mutex);
2823 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2824 struct ieee80211_vif_chanctx_switch *vifs,
2826 enum ieee80211_chanctx_switch_mode mode)
2828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2831 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2832 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2835 mutex_lock(&mvm->mutex);
2836 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
2837 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2839 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2841 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2845 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2849 "failed to assign new_ctx during channel switch\n");
2853 /* we don't support TDLS during DCM - can be caused by channel switch */
2854 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2855 iwl_mvm_teardown_tdls_peers(mvm);
2860 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2863 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2865 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2869 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2872 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2879 /* things keep failing, better restart the hw */
2880 iwl_mvm_nic_restart(mvm, false);
2883 mutex_unlock(&mvm->mutex);
2887 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2888 struct ieee80211_sta *sta,
2891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2892 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2894 if (!mvm_sta || !mvm_sta->vif) {
2895 IWL_ERR(mvm, "Station is not associated to a vif\n");
2899 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2902 #ifdef CONFIG_NL80211_TESTMODE
2903 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2904 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2905 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2906 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2909 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2910 struct ieee80211_vif *vif,
2911 void *data, int len)
2913 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2917 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2921 if (!tb[IWL_MVM_TM_ATTR_CMD])
2924 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2925 case IWL_MVM_TM_CMD_SET_NOA:
2926 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2927 !vif->bss_conf.enable_beacon ||
2928 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2931 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2932 if (noa_duration >= vif->bss_conf.beacon_int)
2935 mvm->noa_duration = noa_duration;
2938 return iwl_mvm_update_quotas(mvm, NULL);
2939 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2940 /* must be associated client vif - ignore authorized */
2941 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2942 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2943 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2946 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2947 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2948 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
2954 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2955 struct ieee80211_vif *vif,
2956 void *data, int len)
2958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2961 mutex_lock(&mvm->mutex);
2962 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2963 mutex_unlock(&mvm->mutex);
2969 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
2970 struct ieee80211_vif *vif,
2971 struct cfg80211_chan_def *chandef)
2973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2974 struct ieee80211_vif *csa_vif;
2976 mutex_lock(&mvm->mutex);
2978 csa_vif = rcu_dereference_protected(mvm->csa_vif,
2979 lockdep_is_held(&mvm->mutex));
2980 if (WARN(csa_vif && csa_vif->csa_active,
2981 "Another CSA is already in progress"))
2984 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
2985 chandef->center_freq1);
2986 rcu_assign_pointer(mvm->csa_vif, vif);
2989 mutex_unlock(&mvm->mutex);
2992 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
2993 struct ieee80211_vif *vif, u32 queues, bool drop)
2995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2996 struct iwl_mvm_vif *mvmvif;
2997 struct iwl_mvm_sta *mvmsta;
2999 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3002 mutex_lock(&mvm->mutex);
3003 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3004 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3006 if (WARN_ON_ONCE(!mvmsta))
3010 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3011 IWL_ERR(mvm, "flush request fail\n");
3013 iwl_trans_wait_tx_queue_empty(mvm->trans,
3014 mvmsta->tfd_queue_msk);
3017 mutex_unlock(&mvm->mutex);
3020 const struct ieee80211_ops iwl_mvm_hw_ops = {
3021 .tx = iwl_mvm_mac_tx,
3022 .ampdu_action = iwl_mvm_mac_ampdu_action,
3023 .start = iwl_mvm_mac_start,
3024 .restart_complete = iwl_mvm_mac_restart_complete,
3025 .stop = iwl_mvm_mac_stop,
3026 .add_interface = iwl_mvm_mac_add_interface,
3027 .remove_interface = iwl_mvm_mac_remove_interface,
3028 .config = iwl_mvm_mac_config,
3029 .prepare_multicast = iwl_mvm_prepare_multicast,
3030 .configure_filter = iwl_mvm_configure_filter,
3031 .bss_info_changed = iwl_mvm_bss_info_changed,
3032 .hw_scan = iwl_mvm_mac_hw_scan,
3033 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3034 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3035 .sta_state = iwl_mvm_mac_sta_state,
3036 .sta_notify = iwl_mvm_mac_sta_notify,
3037 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3038 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3039 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3040 .sta_rc_update = iwl_mvm_sta_rc_update,
3041 .conf_tx = iwl_mvm_mac_conf_tx,
3042 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3043 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3044 .flush = iwl_mvm_mac_flush,
3045 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3046 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3047 .set_key = iwl_mvm_mac_set_key,
3048 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3049 .remain_on_channel = iwl_mvm_roc,
3050 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3051 .add_chanctx = iwl_mvm_add_chanctx,
3052 .remove_chanctx = iwl_mvm_remove_chanctx,
3053 .change_chanctx = iwl_mvm_change_chanctx,
3054 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3055 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3056 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3058 .start_ap = iwl_mvm_start_ap_ibss,
3059 .stop_ap = iwl_mvm_stop_ap_ibss,
3060 .join_ibss = iwl_mvm_start_ap_ibss,
3061 .leave_ibss = iwl_mvm_stop_ap_ibss,
3063 .set_tim = iwl_mvm_set_tim,
3065 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3067 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3069 #ifdef CONFIG_PM_SLEEP
3071 .suspend = iwl_mvm_suspend,
3072 .resume = iwl_mvm_resume,
3073 .set_wakeup = iwl_mvm_set_wakeup,
3074 .set_rekey_data = iwl_mvm_set_rekey_data,
3075 #if IS_ENABLED(CONFIG_IPV6)
3076 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3078 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,