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) &&
530 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
533 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
534 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
535 ieee80211_is_mgmt(hdr->frame_control) &&
536 !ieee80211_is_deauth(hdr->frame_control) &&
537 !ieee80211_is_disassoc(hdr->frame_control) &&
538 !ieee80211_is_action(hdr->frame_control)))
542 if (iwl_mvm_defer_tx(mvm, sta, skb))
544 if (iwl_mvm_tx_skb(mvm, skb, sta))
549 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
553 ieee80211_free_txskb(hw, skb);
556 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
558 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
563 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
565 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
567 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
570 /* enabled by default */
574 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
575 struct ieee80211_vif *vif,
576 enum ieee80211_ampdu_mlme_action action,
577 struct ieee80211_sta *sta, u16 tid,
578 u16 *ssn, u8 buf_size)
580 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
582 bool tx_agg_ref = false;
584 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
585 sta->addr, tid, action);
587 if (!(mvm->nvm_data->sku_cap_11n_enable))
590 /* return from D0i3 before starting a new Tx aggregation */
592 case IEEE80211_AMPDU_TX_START:
593 case IEEE80211_AMPDU_TX_STOP_CONT:
594 case IEEE80211_AMPDU_TX_STOP_FLUSH:
595 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
596 case IEEE80211_AMPDU_TX_OPERATIONAL:
598 * for tx start, wait synchronously until D0i3 exit to
599 * get the correct sequence number for the tid.
600 * additionally, some other ampdu actions use direct
601 * target access, which is not handled automatically
602 * by the trans layer (unlike commands), so wait for
603 * d0i3 exit in these cases as well.
605 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
615 mutex_lock(&mvm->mutex);
618 case IEEE80211_AMPDU_RX_START:
619 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
623 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
625 case IEEE80211_AMPDU_RX_STOP:
626 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
628 case IEEE80211_AMPDU_TX_START:
629 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
633 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
635 case IEEE80211_AMPDU_TX_STOP_CONT:
636 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
638 case IEEE80211_AMPDU_TX_STOP_FLUSH:
639 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
640 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
642 case IEEE80211_AMPDU_TX_OPERATIONAL:
643 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
650 mutex_unlock(&mvm->mutex);
653 * If the tid is marked as started, we won't use it for offloaded
654 * traffic on the next D0i3 entry. It's safe to unref.
657 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
662 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
663 struct ieee80211_vif *vif)
665 struct iwl_mvm *mvm = data;
666 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
668 mvmvif->uploaded = false;
669 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
671 /* does this make sense at all? */
674 spin_lock_bh(&mvm->time_event_lock);
675 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
676 spin_unlock_bh(&mvm->time_event_lock);
678 mvmvif->phy_ctxt = NULL;
679 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
682 #ifdef CONFIG_IWLWIFI_DEBUGFS
683 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
685 static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
686 struct iwl_fw_error_dump_file *dump_file;
687 struct iwl_fw_error_dump_data *dump_data;
688 struct iwl_fw_error_dump_info *dump_info;
689 struct iwl_mvm_dump_ptrs *fw_error_dump;
690 const struct fw_img *img;
691 u32 sram_len, sram_ofs;
692 u32 file_len, rxf_len;
696 lockdep_assert_held(&mvm->mutex);
698 if (mvm->fw_error_dump)
701 fw_error_dump = kzalloc(sizeof(*mvm->fw_error_dump), GFP_KERNEL);
705 img = &mvm->fw->img[mvm->cur_ucode];
706 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
707 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
709 /* reading buffer size */
710 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
711 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
713 /* the register holds the value divided by 128 */
714 rxf_len = rxf_len << 7;
716 file_len = sizeof(*dump_file) +
717 sizeof(*dump_data) * 3 +
722 dump_file = vzalloc(file_len);
724 kfree(fw_error_dump);
728 fw_error_dump->op_mode_ptr = dump_file;
730 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
731 dump_data = (void *)dump_file->data;
733 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
734 dump_data->len = cpu_to_le32(sizeof(*dump_info));
735 dump_info = (void *) dump_data->data;
736 dump_info->device_family =
737 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
738 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
739 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
740 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
741 sizeof(dump_info->fw_human_readable));
742 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
743 sizeof(dump_info->dev_human_readable));
744 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
745 sizeof(dump_info->bus_human_readable));
747 dump_data = iwl_fw_error_next_data(dump_data);
748 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
749 dump_data->len = cpu_to_le32(rxf_len);
751 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
752 u32 *rxf = (void *)dump_data->data;
755 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
756 iwl_trans_write_prph(mvm->trans,
757 RXF_LD_FENCE_OFFSET_ADDR,
759 rxf[i] = iwl_trans_read_prph(mvm->trans,
760 RXF_FIFO_RD_FENCE_ADDR);
762 iwl_trans_release_nic_access(mvm->trans, &flags);
765 dump_data = iwl_fw_error_next_data(dump_data);
766 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
767 dump_data->len = cpu_to_le32(sram_len);
768 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
771 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
772 fw_error_dump->op_mode_len = file_len;
773 if (fw_error_dump->trans_ptr)
774 file_len += fw_error_dump->trans_ptr->len;
775 dump_file->file_len = cpu_to_le32(file_len);
776 mvm->fw_error_dump = fw_error_dump;
778 /* notify the userspace about the error we had */
779 kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
783 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
785 iwl_mvm_fw_error_dump(mvm);
787 iwl_trans_stop_device(mvm->trans);
789 mvm->scan_status = IWL_MVM_SCAN_NONE;
790 mvm->ps_disabled = false;
792 /* just in case one was running */
793 ieee80211_remain_on_channel_expired(mvm->hw);
795 ieee80211_iterate_active_interfaces_atomic(
796 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
797 iwl_mvm_cleanup_iterator, mvm);
799 mvm->p2p_device_vif = NULL;
800 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
802 iwl_mvm_reset_phy_ctxts(mvm);
803 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
804 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
805 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
806 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
807 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
808 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
809 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
810 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
812 ieee80211_wake_queues(mvm->hw);
814 /* cleanup all stale references (scan, roc), but keep the
815 * ucode_down ref until reconfig is complete */
816 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
818 /* clear any stale d0i3 state */
819 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
822 mvm->rx_ba_sessions = 0;
825 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
829 lockdep_assert_held(&mvm->mutex);
831 /* Clean up some internal and mac80211 state on restart */
832 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
833 iwl_mvm_restart_cleanup(mvm);
835 ret = iwl_mvm_up(mvm);
837 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
838 /* Something went wrong - we need to finish some cleanup
839 * that normally iwl_mvm_mac_restart_complete() below
842 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
843 iwl_mvm_d0i3_enable_tx(mvm, NULL);
849 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
851 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
854 mutex_lock(&mvm->mutex);
855 ret = __iwl_mvm_mac_start(mvm);
856 mutex_unlock(&mvm->mutex);
861 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
863 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
866 mutex_lock(&mvm->mutex);
868 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
869 iwl_mvm_d0i3_enable_tx(mvm, NULL);
870 ret = iwl_mvm_update_quotas(mvm, NULL);
872 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
875 /* allow transport/FW low power modes */
876 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
878 mutex_unlock(&mvm->mutex);
881 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
883 lockdep_assert_held(&mvm->mutex);
885 /* disallow low power states when the FW is down */
886 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
888 /* async_handlers_wk is now blocked */
891 * The work item could be running or queued if the
892 * ROC time event stops just as we get here.
894 cancel_work_sync(&mvm->roc_done_wk);
896 iwl_trans_stop_device(mvm->trans);
898 iwl_mvm_async_handlers_purge(mvm);
899 /* async_handlers_list is empty and will stay empty: HW is stopped */
901 /* the fw is stopped, the aux sta is dead: clean up driver state */
902 iwl_mvm_del_aux_sta(mvm);
904 mvm->ucode_loaded = false;
907 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
911 flush_work(&mvm->d0i3_exit_work);
912 flush_work(&mvm->async_handlers_wk);
913 flush_work(&mvm->fw_error_dump_wk);
915 mutex_lock(&mvm->mutex);
916 __iwl_mvm_mac_stop(mvm);
917 mutex_unlock(&mvm->mutex);
920 * The worker might have been waiting for the mutex, let it run and
921 * discover that its list is now empty.
923 cancel_work_sync(&mvm->async_handlers_wk);
926 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
930 lockdep_assert_held(&mvm->mutex);
932 for (i = 0; i < NUM_PHY_CTX; i++)
933 if (!mvm->phy_ctxts[i].ref)
934 return &mvm->phy_ctxts[i];
936 IWL_ERR(mvm, "No available PHY context\n");
940 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
943 /* FW is in charge of regulatory enforcement */
944 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
945 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
946 .pwr_restriction = cpu_to_le16(tx_power),
949 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
950 sizeof(reduce_txpwr_cmd),
954 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
955 struct ieee80211_vif *vif)
957 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
958 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
962 * make sure D0i3 exit is completed, otherwise a target access
963 * during tx queue configuration could be done when still in
966 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
971 * Not much to do here. The stack will not allow interface
972 * types or combinations that we didn't advertise, so we
973 * don't really have to check the types.
976 mutex_lock(&mvm->mutex);
978 /* Allocate resources for the MAC context, and add it to the fw */
979 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
983 /* Counting number of interfaces is needed for legacy PM */
984 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
988 * The AP binding flow can be done only after the beacon
989 * template is configured (which happens only in the mac80211
990 * start_ap() flow), and adding the broadcast station can happen
991 * only after the binding.
992 * In addition, since modifying the MAC before adding a bcast
993 * station is not allowed by the FW, delay the adding of MAC context to
994 * the point where we can also add the bcast station.
995 * In short: there's not much we can do at this point, other than
996 * allocating resources :)
998 if (vif->type == NL80211_IFTYPE_AP ||
999 vif->type == NL80211_IFTYPE_ADHOC) {
1000 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1002 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1006 iwl_mvm_vif_dbgfs_register(mvm, vif);
1010 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1014 ret = iwl_mvm_power_update_mac(mvm);
1018 /* beacon filtering */
1019 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1021 goto out_remove_mac;
1023 if (!mvm->bf_allowed_vif &&
1024 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1025 mvm->bf_allowed_vif = mvmvif;
1026 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1027 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1031 * P2P_DEVICE interface does not have a channel context assigned to it,
1032 * so a dedicated PHY context is allocated to it and the corresponding
1033 * MAC context is bound to it at this stage.
1035 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1037 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1038 if (!mvmvif->phy_ctxt) {
1043 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1044 ret = iwl_mvm_binding_add_vif(mvm, vif);
1048 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1052 /* Save a pointer to p2p device vif, so it can later be used to
1053 * update the p2p device MAC when a GO is started/stopped */
1054 mvm->p2p_device_vif = vif;
1057 iwl_mvm_vif_dbgfs_register(mvm, vif);
1061 iwl_mvm_binding_remove_vif(mvm, vif);
1063 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1065 if (mvm->bf_allowed_vif == mvmvif) {
1066 mvm->bf_allowed_vif = NULL;
1067 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1068 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1071 mvmvif->phy_ctxt = NULL;
1072 iwl_mvm_mac_ctxt_remove(mvm, vif);
1074 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1077 iwl_mvm_mac_ctxt_release(mvm, vif);
1079 mutex_unlock(&mvm->mutex);
1081 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1086 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1087 struct ieee80211_vif *vif)
1089 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(mvm, vif);
1092 mutex_lock(&mvm->mutex);
1093 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1094 mutex_unlock(&mvm->mutex);
1097 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1099 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1100 * We assume here that all the packets sent to the OFFCHANNEL
1101 * queue are sent in ROC session.
1103 flush_work(&mvm->roc_done_wk);
1106 * By now, all the AC queues are empty. The AGG queues are
1107 * empty too. We already got all the Tx responses for all the
1108 * packets in the queues. The drain work can have been
1109 * triggered. Flush it.
1111 flush_work(&mvm->sta_drained_wk);
1115 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1116 struct ieee80211_vif *vif)
1118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1119 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1121 iwl_mvm_prepare_mac_removal(mvm, vif);
1123 mutex_lock(&mvm->mutex);
1125 if (mvm->bf_allowed_vif == mvmvif) {
1126 mvm->bf_allowed_vif = NULL;
1127 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1128 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1131 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1134 * For AP/GO interface, the tear down of the resources allocated to the
1135 * interface is be handled as part of the stop_ap flow.
1137 if (vif->type == NL80211_IFTYPE_AP ||
1138 vif->type == NL80211_IFTYPE_ADHOC) {
1139 #ifdef CONFIG_NL80211_TESTMODE
1140 if (vif == mvm->noa_vif) {
1141 mvm->noa_vif = NULL;
1142 mvm->noa_duration = 0;
1145 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1149 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1150 mvm->p2p_device_vif = NULL;
1151 iwl_mvm_rm_bcast_sta(mvm, vif);
1152 iwl_mvm_binding_remove_vif(mvm, vif);
1153 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1154 mvmvif->phy_ctxt = NULL;
1157 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1160 iwl_mvm_power_update_mac(mvm);
1161 iwl_mvm_mac_ctxt_remove(mvm, vif);
1164 iwl_mvm_mac_ctxt_release(mvm, vif);
1165 mutex_unlock(&mvm->mutex);
1168 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1173 struct iwl_mvm_mc_iter_data {
1174 struct iwl_mvm *mvm;
1178 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1179 struct ieee80211_vif *vif)
1181 struct iwl_mvm_mc_iter_data *data = _data;
1182 struct iwl_mvm *mvm = data->mvm;
1183 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1186 /* if we don't have free ports, mcast frames will be dropped */
1187 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1190 if (vif->type != NL80211_IFTYPE_STATION ||
1191 !vif->bss_conf.assoc)
1194 cmd->port_id = data->port_id++;
1195 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1196 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1198 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1200 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1203 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1205 struct iwl_mvm_mc_iter_data iter_data = {
1209 lockdep_assert_held(&mvm->mutex);
1211 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1214 ieee80211_iterate_active_interfaces_atomic(
1215 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1216 iwl_mvm_mc_iface_iterator, &iter_data);
1219 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1220 struct netdev_hw_addr_list *mc_list)
1222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1223 struct iwl_mcast_filter_cmd *cmd;
1224 struct netdev_hw_addr *addr;
1229 addr_count = netdev_hw_addr_list_count(mc_list);
1230 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1231 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1235 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1236 cmd = kzalloc(len, GFP_ATOMIC);
1242 return (u64)(unsigned long)cmd;
1245 netdev_hw_addr_list_for_each(addr, mc_list) {
1246 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1247 cmd->count, addr->addr);
1248 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1249 addr->addr, ETH_ALEN);
1253 return (u64)(unsigned long)cmd;
1256 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1257 unsigned int changed_flags,
1258 unsigned int *total_flags,
1261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1262 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1264 mutex_lock(&mvm->mutex);
1266 /* replace previous configuration */
1267 kfree(mvm->mcast_filter_cmd);
1268 mvm->mcast_filter_cmd = cmd;
1273 iwl_mvm_recalc_multicast(mvm);
1275 mutex_unlock(&mvm->mutex);
1279 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1280 struct iwl_bcast_iter_data {
1281 struct iwl_mvm *mvm;
1282 struct iwl_bcast_filter_cmd *cmd;
1287 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1288 const struct iwl_fw_bcast_filter *in_filter,
1289 struct iwl_fw_bcast_filter *out_filter)
1291 struct iwl_fw_bcast_filter_attr *attr;
1294 memcpy(out_filter, in_filter, sizeof(*out_filter));
1296 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1297 attr = &out_filter->attrs[i];
1302 switch (attr->reserved1) {
1303 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1304 if (vif->bss_conf.arp_addr_cnt != 1) {
1309 attr->val = vif->bss_conf.arp_addr_list[0];
1311 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1312 attr->val = *(__be32 *)&vif->addr[2];
1317 attr->reserved1 = 0;
1318 out_filter->num_attrs++;
1322 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1323 struct ieee80211_vif *vif)
1325 struct iwl_bcast_iter_data *data = _data;
1326 struct iwl_mvm *mvm = data->mvm;
1327 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1328 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1329 struct iwl_fw_bcast_mac *bcast_mac;
1332 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1335 bcast_mac = &cmd->macs[mvmvif->id];
1338 * enable filtering only for associated stations, but not for P2P
1341 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1342 !vif->bss_conf.assoc)
1345 bcast_mac->default_discard = 1;
1347 /* copy all configured filters */
1348 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1350 * Make sure we don't exceed our filters limit.
1351 * if there is still a valid filter to be configured,
1352 * be on the safe side and just allow bcast for this mac.
1354 if (WARN_ON_ONCE(data->current_filter >=
1355 ARRAY_SIZE(cmd->filters))) {
1356 bcast_mac->default_discard = 0;
1357 bcast_mac->attached_filters = 0;
1361 iwl_mvm_set_bcast_filter(vif,
1362 &mvm->bcast_filters[i],
1363 &cmd->filters[data->current_filter]);
1365 /* skip current filter if it contains no attributes */
1366 if (!cmd->filters[data->current_filter].num_attrs)
1369 /* attach the filter to current mac */
1370 bcast_mac->attached_filters |=
1371 cpu_to_le16(BIT(data->current_filter));
1373 data->current_filter++;
1377 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1378 struct iwl_bcast_filter_cmd *cmd)
1380 struct iwl_bcast_iter_data iter_data = {
1385 memset(cmd, 0, sizeof(*cmd));
1386 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1387 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1389 #ifdef CONFIG_IWLWIFI_DEBUGFS
1390 /* use debugfs filters/macs if override is configured */
1391 if (mvm->dbgfs_bcast_filtering.override) {
1392 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1393 sizeof(cmd->filters));
1394 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1400 /* if no filters are configured, do nothing */
1401 if (!mvm->bcast_filters)
1404 /* configure and attach these filters for each associated sta vif */
1405 ieee80211_iterate_active_interfaces(
1406 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1407 iwl_mvm_bcast_filter_iterator, &iter_data);
1411 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1412 struct ieee80211_vif *vif)
1414 struct iwl_bcast_filter_cmd cmd;
1416 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1419 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1422 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1426 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1427 struct ieee80211_vif *vif)
1433 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1434 struct ieee80211_vif *vif,
1435 struct ieee80211_bss_conf *bss_conf,
1438 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1442 * Re-calculate the tsf id, as the master-slave relations depend on the
1443 * beacon interval, which was not known when the station interface was
1446 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1447 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1450 * If we're not associated yet, take the (new) BSSID before associating
1451 * so the firmware knows. If we're already associated, then use the old
1452 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1453 * branch for disassociation below.
1455 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1456 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1458 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1460 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1462 /* after sending it once, adopt mac80211 data */
1463 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1464 mvmvif->associated = bss_conf->assoc;
1466 if (changes & BSS_CHANGED_ASSOC) {
1467 if (bss_conf->assoc) {
1468 /* add quota for this interface */
1469 ret = iwl_mvm_update_quotas(mvm, NULL);
1471 IWL_ERR(mvm, "failed to update quotas\n");
1475 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1478 * If we're restarting then the firmware will
1479 * obviously have lost synchronisation with
1480 * the AP. It will attempt to synchronise by
1481 * itself, but we can make it more reliable by
1482 * scheduling a session protection time event.
1484 * The firmware needs to receive a beacon to
1485 * catch up with synchronisation, use 110% of
1486 * the beacon interval.
1488 * Set a large maximum delay to allow for more
1489 * than a single interface.
1491 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1492 iwl_mvm_protect_session(mvm, vif, dur, dur,
1496 iwl_mvm_sf_update(mvm, vif, false);
1497 iwl_mvm_power_vif_assoc(mvm, vif);
1499 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1500 iwl_mvm_update_smps(mvm, vif,
1501 IWL_MVM_SMPS_REQ_PROT,
1502 IEEE80211_SMPS_DYNAMIC);
1504 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1506 * If update fails - SF might be running in associated
1507 * mode while disassociated - which is forbidden.
1509 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1510 "Failed to update SF upon disassociation\n");
1512 /* remove AP station now that the MAC is unassoc */
1513 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1515 IWL_ERR(mvm, "failed to remove AP station\n");
1517 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1518 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1519 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1520 /* remove quota for this interface */
1521 ret = iwl_mvm_update_quotas(mvm, NULL);
1523 IWL_ERR(mvm, "failed to update quotas\n");
1526 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1528 /* this will take the cleared BSSID from bss_conf */
1529 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1532 "failed to update MAC %pM (clear after unassoc)\n",
1536 iwl_mvm_recalc_multicast(mvm);
1537 iwl_mvm_configure_bcast_filter(mvm, vif);
1539 /* reset rssi values */
1540 mvmvif->bf_data.ave_beacon_signal = 0;
1542 iwl_mvm_bt_coex_vif_change(mvm);
1543 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1544 IEEE80211_SMPS_AUTOMATIC);
1545 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1547 * We received a beacon _after_ association so
1548 * remove the session protection.
1550 iwl_mvm_remove_time_event(mvm, mvmvif,
1551 &mvmvif->time_event_data);
1554 if (changes & BSS_CHANGED_BEACON_INFO) {
1555 iwl_mvm_sf_update(mvm, vif, false);
1556 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1559 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1560 ret = iwl_mvm_power_update_mac(mvm);
1562 IWL_ERR(mvm, "failed to update power mode\n");
1565 if (changes & BSS_CHANGED_TXPOWER) {
1566 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1568 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1571 if (changes & BSS_CHANGED_CQM) {
1572 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1573 /* reset cqm events tracking */
1574 mvmvif->bf_data.last_cqm_event = 0;
1575 if (mvmvif->bf_data.bf_enabled) {
1576 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1579 "failed to update CQM thresholds\n");
1583 if (changes & BSS_CHANGED_ARP_FILTER) {
1584 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1585 iwl_mvm_configure_bcast_filter(mvm, vif);
1589 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1590 struct ieee80211_vif *vif)
1592 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1593 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1597 * iwl_mvm_mac_ctxt_add() might read directly from the device
1598 * (the system time), so make sure it is available.
1600 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1604 mutex_lock(&mvm->mutex);
1606 /* Send the beacon template */
1607 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1612 * Re-calculate the tsf id, as the master-slave relations depend on the
1613 * beacon interval, which was not known when the AP interface was added.
1615 if (vif->type == NL80211_IFTYPE_AP)
1616 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1618 /* Add the mac context */
1619 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1623 /* Perform the binding */
1624 ret = iwl_mvm_binding_add_vif(mvm, vif);
1628 /* Send the bcast station. At this stage the TBTT and DTIM time events
1629 * are added and applied to the scheduler */
1630 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1634 /* must be set before quota calculations */
1635 mvmvif->ap_ibss_active = true;
1637 /* power updated needs to be done before quotas */
1638 iwl_mvm_power_update_mac(mvm);
1640 ret = iwl_mvm_update_quotas(mvm, NULL);
1642 goto out_quota_failed;
1644 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1645 if (vif->p2p && mvm->p2p_device_vif)
1646 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1648 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1650 iwl_mvm_bt_coex_vif_change(mvm);
1652 /* we don't support TDLS during DCM */
1653 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1654 iwl_mvm_teardown_tdls_peers(mvm);
1656 mutex_unlock(&mvm->mutex);
1660 iwl_mvm_power_update_mac(mvm);
1661 mvmvif->ap_ibss_active = false;
1662 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1664 iwl_mvm_binding_remove_vif(mvm, vif);
1666 iwl_mvm_mac_ctxt_remove(mvm, vif);
1668 mutex_unlock(&mvm->mutex);
1669 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
1673 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1674 struct ieee80211_vif *vif)
1676 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1677 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1679 iwl_mvm_prepare_mac_removal(mvm, vif);
1681 mutex_lock(&mvm->mutex);
1683 /* Handle AP stop while in CSA */
1684 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1685 iwl_mvm_remove_time_event(mvm, mvmvif,
1686 &mvmvif->time_event_data);
1687 RCU_INIT_POINTER(mvm->csa_vif, NULL);
1690 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1691 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1692 mvm->csa_tx_block_bcn_timeout = 0;
1695 mvmvif->ap_ibss_active = false;
1696 mvm->ap_last_beacon_gp2 = 0;
1698 iwl_mvm_bt_coex_vif_change(mvm);
1700 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1702 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1703 if (vif->p2p && mvm->p2p_device_vif)
1704 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1706 iwl_mvm_update_quotas(mvm, NULL);
1707 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1708 iwl_mvm_binding_remove_vif(mvm, vif);
1710 iwl_mvm_power_update_mac(mvm);
1712 iwl_mvm_mac_ctxt_remove(mvm, vif);
1714 mutex_unlock(&mvm->mutex);
1718 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1719 struct ieee80211_vif *vif,
1720 struct ieee80211_bss_conf *bss_conf,
1723 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1725 /* Changes will be applied when the AP/IBSS is started */
1726 if (!mvmvif->ap_ibss_active)
1729 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1730 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
1731 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
1732 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1734 /* Need to send a new beacon template to the FW */
1735 if (changes & BSS_CHANGED_BEACON &&
1736 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1737 IWL_WARN(mvm, "Failed updating beacon data\n");
1739 if (changes & BSS_CHANGED_TXPOWER) {
1740 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1742 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1747 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1748 struct ieee80211_vif *vif,
1749 struct ieee80211_bss_conf *bss_conf,
1752 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1755 * iwl_mvm_bss_info_changed_station() might call
1756 * iwl_mvm_protect_session(), which reads directly from
1757 * the device (the system time), so make sure it is available.
1759 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1762 mutex_lock(&mvm->mutex);
1764 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1765 iwl_mvm_scan_offload_stop(mvm, true);
1767 switch (vif->type) {
1768 case NL80211_IFTYPE_STATION:
1769 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1771 case NL80211_IFTYPE_AP:
1772 case NL80211_IFTYPE_ADHOC:
1773 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1776 /* shouldn't happen */
1780 mutex_unlock(&mvm->mutex);
1781 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
1784 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1785 enum iwl_scan_status scan_type)
1788 bool wait_for_handlers = false;
1790 mutex_lock(&mvm->mutex);
1792 if (mvm->scan_status != scan_type) {
1794 /* make sure there are no pending notifications */
1795 wait_for_handlers = true;
1799 switch (scan_type) {
1800 case IWL_MVM_SCAN_SCHED:
1801 ret = iwl_mvm_scan_offload_stop(mvm, true);
1803 case IWL_MVM_SCAN_OS:
1804 ret = iwl_mvm_cancel_scan(mvm);
1806 case IWL_MVM_SCAN_NONE:
1815 wait_for_handlers = true;
1817 mutex_unlock(&mvm->mutex);
1819 /* make sure we consume the completion notification */
1820 if (wait_for_handlers)
1821 iwl_mvm_wait_for_async_handlers(mvm);
1825 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1826 struct ieee80211_vif *vif,
1827 struct ieee80211_scan_request *hw_req)
1829 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1830 struct cfg80211_scan_request *req = &hw_req->req;
1833 if (req->n_channels == 0 ||
1834 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
1837 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1841 mutex_lock(&mvm->mutex);
1843 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1848 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1850 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1851 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
1853 ret = iwl_mvm_scan_request(mvm, vif, req);
1856 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1858 mutex_unlock(&mvm->mutex);
1862 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1863 struct ieee80211_vif *vif)
1865 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1867 mutex_lock(&mvm->mutex);
1869 iwl_mvm_cancel_scan(mvm);
1871 mutex_unlock(&mvm->mutex);
1875 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1876 struct ieee80211_sta *sta, u16 tids,
1878 enum ieee80211_frame_release_type reason,
1881 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1883 /* Called when we need to transmit (a) frame(s) from mac80211 */
1885 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1886 tids, more_data, false);
1890 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1891 struct ieee80211_sta *sta, u16 tids,
1893 enum ieee80211_frame_release_type reason,
1896 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1898 /* Called when we need to transmit (a) frame(s) from agg queue */
1900 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1901 tids, more_data, true);
1904 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1905 struct ieee80211_vif *vif,
1906 enum sta_notify_cmd cmd,
1907 struct ieee80211_sta *sta)
1909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1910 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1914 case STA_NOTIFY_SLEEP:
1915 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1916 ieee80211_sta_block_awake(hw, sta, true);
1917 spin_lock_bh(&mvmsta->lock);
1918 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1919 struct iwl_mvm_tid_data *tid_data;
1921 tid_data = &mvmsta->tid_data[tid];
1922 if (tid_data->state != IWL_AGG_ON &&
1923 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1925 if (iwl_mvm_tid_queued(tid_data) == 0)
1927 ieee80211_sta_set_buffered(sta, tid, true);
1929 spin_unlock_bh(&mvmsta->lock);
1931 * The fw updates the STA to be asleep. Tx packets on the Tx
1932 * queues to this station will not be transmitted. The fw will
1933 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1936 case STA_NOTIFY_AWAKE:
1937 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1939 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1946 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1947 struct ieee80211_vif *vif,
1948 struct ieee80211_sta *sta)
1950 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1951 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1954 * This is called before mac80211 does RCU synchronisation,
1955 * so here we already invalidate our internal RCU-protected
1956 * station pointer. The rest of the code will thus no longer
1957 * be able to find the station this way, and we don't rely
1958 * on further RCU synchronisation after the sta_state()
1959 * callback deleted the station.
1961 mutex_lock(&mvm->mutex);
1962 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1963 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1965 mutex_unlock(&mvm->mutex);
1968 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1969 struct ieee80211_vif *vif,
1970 struct ieee80211_sta *sta,
1971 enum ieee80211_sta_state old_state,
1972 enum ieee80211_sta_state new_state)
1974 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1975 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1978 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1979 sta->addr, old_state, new_state);
1981 /* this would be a mac80211 bug ... but don't crash */
1982 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1985 /* if a STA is being removed, reuse its ID */
1986 flush_work(&mvm->sta_drained_wk);
1988 mutex_lock(&mvm->mutex);
1989 if (old_state == IEEE80211_STA_NOTEXIST &&
1990 new_state == IEEE80211_STA_NONE) {
1992 * Firmware bug - it'll crash if the beacon interval is less
1993 * than 16. We can't avoid connecting at all, so refuse the
1994 * station state change, this will cause mac80211 to abandon
1995 * attempts to connect to this AP, and eventually wpa_s will
1996 * blacklist the AP...
1998 if (vif->type == NL80211_IFTYPE_STATION &&
1999 vif->bss_conf.beacon_int < 16) {
2001 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2002 sta->addr, vif->bss_conf.beacon_int);
2009 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2010 IWL_MVM_TDLS_STA_COUNT ||
2011 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2012 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2017 ret = iwl_mvm_add_sta(mvm, vif, sta);
2018 if (sta->tdls && ret == 0)
2019 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2020 } else if (old_state == IEEE80211_STA_NONE &&
2021 new_state == IEEE80211_STA_AUTH) {
2023 * EBS may be disabled due to previous failures reported by FW.
2024 * Reset EBS status here assuming environment has been changed.
2026 mvm->last_ebs_successful = true;
2028 } else if (old_state == IEEE80211_STA_AUTH &&
2029 new_state == IEEE80211_STA_ASSOC) {
2030 ret = iwl_mvm_update_sta(mvm, vif, sta);
2032 iwl_mvm_rs_rate_init(mvm, sta,
2033 mvmvif->phy_ctxt->channel->band,
2035 } else if (old_state == IEEE80211_STA_ASSOC &&
2036 new_state == IEEE80211_STA_AUTHORIZED) {
2038 /* we don't support TDLS during DCM */
2039 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2040 iwl_mvm_teardown_tdls_peers(mvm);
2042 /* enable beacon filtering */
2043 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2045 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2046 new_state == IEEE80211_STA_ASSOC) {
2047 /* disable beacon filtering */
2048 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2050 } else if (old_state == IEEE80211_STA_ASSOC &&
2051 new_state == IEEE80211_STA_AUTH) {
2053 } else if (old_state == IEEE80211_STA_AUTH &&
2054 new_state == IEEE80211_STA_NONE) {
2056 } else if (old_state == IEEE80211_STA_NONE &&
2057 new_state == IEEE80211_STA_NOTEXIST) {
2058 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2060 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2065 mutex_unlock(&mvm->mutex);
2070 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2074 mvm->rts_threshold = value;
2079 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2080 struct ieee80211_vif *vif,
2081 struct ieee80211_sta *sta, u32 changed)
2083 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2085 if (vif->type == NL80211_IFTYPE_STATION &&
2086 changed & IEEE80211_RC_NSS_CHANGED)
2087 iwl_mvm_sf_update(mvm, vif, false);
2090 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2091 struct ieee80211_vif *vif, u16 ac,
2092 const struct ieee80211_tx_queue_params *params)
2094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2095 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2097 mvmvif->queue_params[ac] = *params;
2100 * No need to update right away, we'll get BSS_CHANGED_QOS
2101 * The exception is P2P_DEVICE interface which needs immediate update.
2103 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2106 mutex_lock(&mvm->mutex);
2107 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2108 mutex_unlock(&mvm->mutex);
2114 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2115 struct ieee80211_vif *vif)
2117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2118 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2119 200 + vif->bss_conf.beacon_int);
2120 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2121 100 + vif->bss_conf.beacon_int);
2123 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2127 * iwl_mvm_protect_session() reads directly from the device
2128 * (the system time), so make sure it is available.
2130 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2133 mutex_lock(&mvm->mutex);
2134 /* Try really hard to protect the session and hear a beacon */
2135 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2136 mutex_unlock(&mvm->mutex);
2138 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2141 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2142 struct ieee80211_vif *vif,
2143 struct cfg80211_sched_scan_request *req,
2144 struct ieee80211_scan_ies *ies)
2146 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2149 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2153 mutex_lock(&mvm->mutex);
2155 /* Newest FW fixes sched scan while connected on another interface */
2156 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2157 if (!vif->bss_conf.idle) {
2161 } else if (!iwl_mvm_is_idle(mvm)) {
2166 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2171 mvm->scan_status = IWL_MVM_SCAN_SCHED;
2173 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) {
2174 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
2179 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
2183 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2184 ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies);
2186 ret = iwl_mvm_sched_scan_start(mvm, req);
2191 mvm->scan_status = IWL_MVM_SCAN_NONE;
2193 mutex_unlock(&mvm->mutex);
2197 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2198 struct ieee80211_vif *vif)
2200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2203 mutex_lock(&mvm->mutex);
2204 ret = iwl_mvm_scan_offload_stop(mvm, false);
2205 mutex_unlock(&mvm->mutex);
2206 iwl_mvm_wait_for_async_handlers(mvm);
2211 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2212 enum set_key_cmd cmd,
2213 struct ieee80211_vif *vif,
2214 struct ieee80211_sta *sta,
2215 struct ieee80211_key_conf *key)
2217 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2220 if (iwlwifi_mod_params.sw_crypto) {
2221 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2225 switch (key->cipher) {
2226 case WLAN_CIPHER_SUITE_TKIP:
2227 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2229 case WLAN_CIPHER_SUITE_CCMP:
2230 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2232 case WLAN_CIPHER_SUITE_AES_CMAC:
2233 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2235 case WLAN_CIPHER_SUITE_WEP40:
2236 case WLAN_CIPHER_SUITE_WEP104:
2238 * Support for TX only, at least for now, so accept
2239 * the key and do nothing else. Then mac80211 will
2240 * pass it for TX but we don't have to use it for RX.
2244 /* currently FW supports only one optional cipher scheme */
2245 if (hw->n_cipher_schemes &&
2246 hw->cipher_schemes->cipher == key->cipher)
2247 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2252 mutex_lock(&mvm->mutex);
2256 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2257 vif->type == NL80211_IFTYPE_AP) && !sta) {
2259 * GTK on AP interface is a TX-only key, return 0;
2260 * on IBSS they're per-station and because we're lazy
2261 * we don't support them for RX, so do the same.
2264 key->hw_key_idx = STA_KEY_IDX_INVALID;
2268 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2269 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2271 IWL_WARN(mvm, "set key failed\n");
2273 * can't add key for RX, but we don't need it
2274 * in the device for TX so still return 0
2276 key->hw_key_idx = STA_KEY_IDX_INVALID;
2282 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2287 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2288 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2294 mutex_unlock(&mvm->mutex);
2298 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2299 struct ieee80211_vif *vif,
2300 struct ieee80211_key_conf *keyconf,
2301 struct ieee80211_sta *sta,
2302 u32 iv32, u16 *phase1key)
2304 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2306 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2309 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2313 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2314 struct iwl_rx_packet *pkt, void *data)
2316 struct iwl_mvm *mvm =
2317 container_of(notif_wait, struct iwl_mvm, notif_wait);
2318 struct iwl_hs20_roc_res *resp;
2319 int resp_len = iwl_rx_packet_payload_len(pkt);
2320 struct iwl_mvm_time_event_data *te_data = data;
2322 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2325 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2326 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2330 resp = (void *)pkt->data;
2333 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2334 resp->status, resp->event_unique_id);
2336 te_data->uid = le32_to_cpu(resp->event_unique_id);
2337 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2340 spin_lock_bh(&mvm->time_event_lock);
2341 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2342 spin_unlock_bh(&mvm->time_event_lock);
2347 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2348 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2349 struct ieee80211_channel *channel,
2350 struct ieee80211_vif *vif,
2353 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2354 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2355 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2356 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2357 struct iwl_notification_wait wait_time_event;
2358 struct iwl_hs20_roc_req aux_roc_req = {
2359 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2361 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2362 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2363 /* Set the channel info data */
2364 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2365 PHY_BAND_24 : PHY_BAND_5,
2366 .channel_info.channel = channel->hw_value,
2367 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2368 /* Set the time and duration */
2369 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2370 .apply_time_max_delay =
2371 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2372 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2375 /* Set the node address */
2376 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2378 lockdep_assert_held(&mvm->mutex);
2380 spin_lock_bh(&mvm->time_event_lock);
2382 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2383 spin_unlock_bh(&mvm->time_event_lock);
2388 te_data->duration = duration;
2389 te_data->id = HOT_SPOT_CMD;
2391 spin_unlock_bh(&mvm->time_event_lock);
2394 * Use a notification wait, which really just processes the
2395 * command response and doesn't wait for anything, in order
2396 * to be able to process the response and get the UID inside
2397 * the RX path. Using CMD_WANT_SKB doesn't work because it
2398 * stores the buffer and then wakes up this thread, by which
2399 * time another notification (that the time event started)
2400 * might already be processed unsuccessfully.
2402 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2403 time_event_response,
2404 ARRAY_SIZE(time_event_response),
2405 iwl_mvm_rx_aux_roc, te_data);
2407 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2411 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2412 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2416 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2417 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2418 /* should never fail */
2423 spin_lock_bh(&mvm->time_event_lock);
2424 iwl_mvm_te_clear_data(mvm, te_data);
2425 spin_unlock_bh(&mvm->time_event_lock);
2431 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2432 struct ieee80211_vif *vif,
2433 struct ieee80211_channel *channel,
2435 enum ieee80211_roc_type type)
2437 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2438 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2439 struct cfg80211_chan_def chandef;
2440 struct iwl_mvm_phy_ctxt *phy_ctxt;
2443 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2446 mutex_lock(&mvm->mutex);
2448 switch (vif->type) {
2449 case NL80211_IFTYPE_STATION:
2450 /* Use aux roc framework (HS20) */
2451 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2454 case NL80211_IFTYPE_P2P_DEVICE:
2458 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2463 for (i = 0; i < NUM_PHY_CTX; i++) {
2464 phy_ctxt = &mvm->phy_ctxts[i];
2465 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2468 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2470 * Unbind the P2P_DEVICE from the current PHY context,
2471 * and if the PHY context is not used remove it.
2473 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2474 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2477 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2479 /* Bind the P2P_DEVICE to the current PHY Context */
2480 mvmvif->phy_ctxt = phy_ctxt;
2482 ret = iwl_mvm_binding_add_vif(mvm, vif);
2483 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2486 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2487 goto schedule_time_event;
2491 /* Need to update the PHY context only if the ROC channel changed */
2492 if (channel == mvmvif->phy_ctxt->channel)
2493 goto schedule_time_event;
2495 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2498 * Change the PHY context configuration as it is currently referenced
2499 * only by the P2P Device MAC
2501 if (mvmvif->phy_ctxt->ref == 1) {
2502 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2508 * The PHY context is shared with other MACs. Need to remove the
2509 * P2P Device from the binding, allocate an new PHY context and
2510 * create a new binding
2512 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2518 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2521 IWL_ERR(mvm, "Failed to change PHY context\n");
2525 /* Unbind the P2P_DEVICE from the current PHY context */
2526 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2527 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2530 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2532 /* Bind the P2P_DEVICE to the new allocated PHY context */
2533 mvmvif->phy_ctxt = phy_ctxt;
2535 ret = iwl_mvm_binding_add_vif(mvm, vif);
2536 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2539 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2542 schedule_time_event:
2543 /* Schedule the time events */
2544 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2547 mutex_unlock(&mvm->mutex);
2548 IWL_DEBUG_MAC80211(mvm, "leave\n");
2552 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2554 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2556 IWL_DEBUG_MAC80211(mvm, "enter\n");
2558 mutex_lock(&mvm->mutex);
2559 iwl_mvm_stop_p2p_roc(mvm);
2560 mutex_unlock(&mvm->mutex);
2562 IWL_DEBUG_MAC80211(mvm, "leave\n");
2566 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2567 struct ieee80211_chanctx_conf *ctx)
2569 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2570 struct iwl_mvm_phy_ctxt *phy_ctxt;
2573 lockdep_assert_held(&mvm->mutex);
2575 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2577 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2583 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2584 ctx->rx_chains_static,
2585 ctx->rx_chains_dynamic);
2587 IWL_ERR(mvm, "Failed to add PHY context\n");
2591 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2592 *phy_ctxt_id = phy_ctxt->id;
2597 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2598 struct ieee80211_chanctx_conf *ctx)
2600 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2603 mutex_lock(&mvm->mutex);
2604 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2605 mutex_unlock(&mvm->mutex);
2610 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2611 struct ieee80211_chanctx_conf *ctx)
2613 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2614 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2616 lockdep_assert_held(&mvm->mutex);
2618 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2621 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2622 struct ieee80211_chanctx_conf *ctx)
2624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2626 mutex_lock(&mvm->mutex);
2627 __iwl_mvm_remove_chanctx(mvm, ctx);
2628 mutex_unlock(&mvm->mutex);
2631 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2632 struct ieee80211_chanctx_conf *ctx,
2635 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2636 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2637 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2639 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2640 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2641 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2642 IEEE80211_CHANCTX_CHANGE_RADAR |
2643 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2644 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2645 phy_ctxt->ref, changed))
2648 mutex_lock(&mvm->mutex);
2649 iwl_mvm_bt_coex_vif_change(mvm);
2650 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2651 ctx->rx_chains_static,
2652 ctx->rx_chains_dynamic);
2653 mutex_unlock(&mvm->mutex);
2656 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2657 struct ieee80211_vif *vif,
2658 struct ieee80211_chanctx_conf *ctx,
2659 bool switching_chanctx)
2661 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2662 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2663 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2666 lockdep_assert_held(&mvm->mutex);
2668 mvmvif->phy_ctxt = phy_ctxt;
2670 switch (vif->type) {
2671 case NL80211_IFTYPE_AP:
2672 /* Unless it's a CSA flow we have nothing to do here */
2673 if (vif->csa_active) {
2674 mvmvif->ap_ibss_active = true;
2677 case NL80211_IFTYPE_ADHOC:
2679 * The AP binding flow is handled as part of the start_ap flow
2680 * (in bss_info_changed), similarly for IBSS.
2684 case NL80211_IFTYPE_STATION:
2686 case NL80211_IFTYPE_MONITOR:
2687 /* always disable PS when a monitor interface is active */
2688 mvmvif->ps_disabled = true;
2695 ret = iwl_mvm_binding_add_vif(mvm, vif);
2700 * Power state must be updated before quotas,
2701 * otherwise fw will complain.
2703 iwl_mvm_power_update_mac(mvm);
2705 /* Setting the quota at this stage is only required for monitor
2706 * interfaces. For the other types, the bss_info changed flow
2707 * will handle quota settings.
2709 if (vif->type == NL80211_IFTYPE_MONITOR) {
2710 mvmvif->monitor_active = true;
2711 ret = iwl_mvm_update_quotas(mvm, NULL);
2713 goto out_remove_binding;
2716 /* Handle binding during CSA */
2717 if ((vif->type == NL80211_IFTYPE_AP) ||
2718 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
2719 iwl_mvm_update_quotas(mvm, NULL);
2720 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2723 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2724 struct iwl_mvm_sta *mvmsta;
2726 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2729 if (WARN_ON(!mvmsta))
2732 /* TODO: only re-enable after the first beacon */
2733 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2739 iwl_mvm_binding_remove_vif(mvm, vif);
2740 iwl_mvm_power_update_mac(mvm);
2743 mvmvif->phy_ctxt = NULL;
2746 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2747 struct ieee80211_vif *vif,
2748 struct ieee80211_chanctx_conf *ctx)
2750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2753 mutex_lock(&mvm->mutex);
2754 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
2755 mutex_unlock(&mvm->mutex);
2760 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2761 struct ieee80211_vif *vif,
2762 struct ieee80211_chanctx_conf *ctx,
2763 bool switching_chanctx)
2765 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2766 struct ieee80211_vif *disabled_vif = NULL;
2767 struct iwl_mvm_sta *mvmsta;
2769 lockdep_assert_held(&mvm->mutex);
2771 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2773 switch (vif->type) {
2774 case NL80211_IFTYPE_ADHOC:
2776 case NL80211_IFTYPE_MONITOR:
2777 mvmvif->monitor_active = false;
2778 mvmvif->ps_disabled = false;
2780 case NL80211_IFTYPE_AP:
2781 /* This part is triggered only during CSA */
2782 if (!vif->csa_active || !mvmvif->ap_ibss_active)
2785 /* Set CS bit on all the stations */
2786 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2788 /* Save blocked iface, the timeout is set on the next beacon */
2789 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2791 mvmvif->ap_ibss_active = false;
2793 case NL80211_IFTYPE_STATION:
2794 if (!switching_chanctx)
2799 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2802 if (!WARN_ON(!mvmsta))
2803 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2805 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
2811 iwl_mvm_update_quotas(mvm, disabled_vif);
2812 iwl_mvm_binding_remove_vif(mvm, vif);
2815 mvmvif->phy_ctxt = NULL;
2816 iwl_mvm_power_update_mac(mvm);
2819 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2820 struct ieee80211_vif *vif,
2821 struct ieee80211_chanctx_conf *ctx)
2823 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2825 mutex_lock(&mvm->mutex);
2826 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
2827 mutex_unlock(&mvm->mutex);
2830 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2831 struct ieee80211_vif_chanctx_switch *vifs,
2833 enum ieee80211_chanctx_switch_mode mode)
2835 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2838 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2839 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2842 mutex_lock(&mvm->mutex);
2843 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
2844 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2846 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2848 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2852 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2856 "failed to assign new_ctx during channel switch\n");
2860 /* we don't support TDLS during DCM - can be caused by channel switch */
2861 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2862 iwl_mvm_teardown_tdls_peers(mvm);
2867 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2870 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2872 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2876 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2879 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2886 /* things keep failing, better restart the hw */
2887 iwl_mvm_nic_restart(mvm, false);
2890 mutex_unlock(&mvm->mutex);
2894 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2895 struct ieee80211_sta *sta,
2898 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2899 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2901 if (!mvm_sta || !mvm_sta->vif) {
2902 IWL_ERR(mvm, "Station is not associated to a vif\n");
2906 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2909 #ifdef CONFIG_NL80211_TESTMODE
2910 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2911 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2912 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2913 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2916 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2917 struct ieee80211_vif *vif,
2918 void *data, int len)
2920 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2924 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2928 if (!tb[IWL_MVM_TM_ATTR_CMD])
2931 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2932 case IWL_MVM_TM_CMD_SET_NOA:
2933 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2934 !vif->bss_conf.enable_beacon ||
2935 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2938 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2939 if (noa_duration >= vif->bss_conf.beacon_int)
2942 mvm->noa_duration = noa_duration;
2945 return iwl_mvm_update_quotas(mvm, NULL);
2946 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2947 /* must be associated client vif - ignore authorized */
2948 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2949 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2950 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2953 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2954 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2955 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
2961 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2962 struct ieee80211_vif *vif,
2963 void *data, int len)
2965 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2968 mutex_lock(&mvm->mutex);
2969 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2970 mutex_unlock(&mvm->mutex);
2976 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
2977 struct ieee80211_vif *vif,
2978 struct cfg80211_chan_def *chandef)
2980 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2981 struct ieee80211_vif *csa_vif;
2983 mutex_lock(&mvm->mutex);
2985 csa_vif = rcu_dereference_protected(mvm->csa_vif,
2986 lockdep_is_held(&mvm->mutex));
2987 if (WARN(csa_vif && csa_vif->csa_active,
2988 "Another CSA is already in progress"))
2991 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
2992 chandef->center_freq1);
2993 rcu_assign_pointer(mvm->csa_vif, vif);
2996 mutex_unlock(&mvm->mutex);
2999 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3000 struct ieee80211_vif *vif, u32 queues, bool drop)
3002 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3003 struct iwl_mvm_vif *mvmvif;
3004 struct iwl_mvm_sta *mvmsta;
3006 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3009 mutex_lock(&mvm->mutex);
3010 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3011 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3013 if (WARN_ON_ONCE(!mvmsta))
3017 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3018 IWL_ERR(mvm, "flush request fail\n");
3020 iwl_trans_wait_tx_queue_empty(mvm->trans,
3021 mvmsta->tfd_queue_msk);
3024 mutex_unlock(&mvm->mutex);
3027 const struct ieee80211_ops iwl_mvm_hw_ops = {
3028 .tx = iwl_mvm_mac_tx,
3029 .ampdu_action = iwl_mvm_mac_ampdu_action,
3030 .start = iwl_mvm_mac_start,
3031 .restart_complete = iwl_mvm_mac_restart_complete,
3032 .stop = iwl_mvm_mac_stop,
3033 .add_interface = iwl_mvm_mac_add_interface,
3034 .remove_interface = iwl_mvm_mac_remove_interface,
3035 .config = iwl_mvm_mac_config,
3036 .prepare_multicast = iwl_mvm_prepare_multicast,
3037 .configure_filter = iwl_mvm_configure_filter,
3038 .bss_info_changed = iwl_mvm_bss_info_changed,
3039 .hw_scan = iwl_mvm_mac_hw_scan,
3040 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3041 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3042 .sta_state = iwl_mvm_mac_sta_state,
3043 .sta_notify = iwl_mvm_mac_sta_notify,
3044 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3045 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3046 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3047 .sta_rc_update = iwl_mvm_sta_rc_update,
3048 .conf_tx = iwl_mvm_mac_conf_tx,
3049 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3050 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3051 .flush = iwl_mvm_mac_flush,
3052 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3053 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3054 .set_key = iwl_mvm_mac_set_key,
3055 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3056 .remain_on_channel = iwl_mvm_roc,
3057 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3058 .add_chanctx = iwl_mvm_add_chanctx,
3059 .remove_chanctx = iwl_mvm_remove_chanctx,
3060 .change_chanctx = iwl_mvm_change_chanctx,
3061 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3062 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3063 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3065 .start_ap = iwl_mvm_start_ap_ibss,
3066 .stop_ap = iwl_mvm_stop_ap_ibss,
3067 .join_ibss = iwl_mvm_start_ap_ibss,
3068 .leave_ibss = iwl_mvm_stop_ap_ibss,
3070 .set_tim = iwl_mvm_set_tim,
3072 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3074 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3076 #ifdef CONFIG_PM_SLEEP
3078 .suspend = iwl_mvm_suspend,
3079 .resume = iwl_mvm_resume,
3080 .set_wakeup = iwl_mvm_set_wakeup,
3081 .set_rekey_data = iwl_mvm_set_rekey_data,
3082 #if IS_ENABLED(CONFIG_IPV6)
3083 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3085 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,