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.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <linux/kernel.h>
64 #include <linux/slab.h>
65 #include <linux/skbuff.h>
66 #include <linux/netdevice.h>
67 #include <linux/etherdevice.h>
69 #include <linux/if_arp.h>
70 #include <net/mac80211.h>
71 #include <net/ieee80211_radiotap.h>
74 #include "iwl-op-mode.h"
78 #include "time-event.h"
79 #include "iwl-eeprom-parse.h"
80 #include "fw-api-scan.h"
81 #include "iwl-phy-db.h"
84 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
87 .types = BIT(NL80211_IFTYPE_STATION),
91 .types = BIT(NL80211_IFTYPE_AP) |
92 BIT(NL80211_IFTYPE_P2P_CLIENT) |
93 BIT(NL80211_IFTYPE_P2P_GO),
97 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
101 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
103 .num_different_channels = 1,
105 .limits = iwl_mvm_limits,
106 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
110 #ifdef CONFIG_PM_SLEEP
111 static const struct nl80211_wowlan_tcp_data_token_feature
112 iwl_mvm_wowlan_tcp_token_feature = {
115 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
118 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
119 .tok = &iwl_mvm_wowlan_tcp_token_feature,
120 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
121 sizeof(struct ethhdr) -
122 sizeof(struct iphdr) -
123 sizeof(struct tcphdr),
124 .data_interval_max = 65535, /* __le16 in API */
125 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
126 sizeof(struct ethhdr) -
127 sizeof(struct iphdr) -
128 sizeof(struct tcphdr),
133 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
135 * Use the reserved field to indicate magic values.
136 * these values will only be used internally by the driver,
137 * and won't make it to the fw (reserved will be 0).
138 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
139 * be the vif's ip address. in case there is not a single
140 * ip address (0, or more than 1), this attribute will
142 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
143 * the LSB bytes of the vif's mac address
146 BC_FILTER_MAGIC_NONE = 0,
151 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
155 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
158 /* frame type - arp, hw type - ethernet */
160 BCAST_FILTER_OFFSET_PAYLOAD_START,
161 .offset = sizeof(rfc1042_header),
162 .val = cpu_to_be32(0x08060001),
163 .mask = cpu_to_be32(0xffffffff),
168 BCAST_FILTER_OFFSET_PAYLOAD_START,
169 .offset = sizeof(rfc1042_header) + 2 +
170 sizeof(struct arphdr) +
171 ETH_ALEN + sizeof(__be32) +
173 .mask = cpu_to_be32(0xffffffff),
174 /* mark it as special field */
175 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
180 /* dhcp offer bcast */
182 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
185 /* udp dest port - 68 (bootp client)*/
186 .offset_type = BCAST_FILTER_OFFSET_IP_END,
187 .offset = offsetof(struct udphdr, dest),
188 .val = cpu_to_be32(0x00440000),
189 .mask = cpu_to_be32(0xffff0000),
192 /* dhcp - lsb bytes of client hw address */
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
195 .mask = cpu_to_be32(0xffffffff),
196 /* mark it as special field */
197 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
201 /* last filter must be empty */
206 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
208 if (!iwl_mvm_is_d0i3_supported(mvm))
211 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
212 WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap));
213 iwl_trans_ref(mvm->trans);
216 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
218 if (!iwl_mvm_is_d0i3_supported(mvm))
221 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
222 WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap));
223 iwl_trans_unref(mvm->trans);
227 iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref)
231 if (!iwl_mvm_is_d0i3_supported(mvm))
234 for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) {
238 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i);
239 clear_bit(i, mvm->ref_bitmap);
240 iwl_trans_unref(mvm->trans);
244 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
248 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
249 for (i = 0; i < NUM_PHY_CTX; i++) {
250 mvm->phy_ctxts[i].id = i;
251 mvm->phy_ctxts[i].ref = 0;
255 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
257 /* we create the 802.11 header and SSID element */
258 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
259 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
260 return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
263 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
265 struct ieee80211_hw *hw = mvm->hw;
268 /* Tell mac80211 our characteristics */
269 hw->flags = IEEE80211_HW_SIGNAL_DBM |
270 IEEE80211_HW_SPECTRUM_MGMT |
271 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
272 IEEE80211_HW_QUEUE_CONTROL |
273 IEEE80211_HW_WANT_MONITOR_VIF |
274 IEEE80211_HW_SUPPORTS_PS |
275 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
276 IEEE80211_HW_AMPDU_AGGREGATION |
277 IEEE80211_HW_TIMING_BEACON_ONLY |
278 IEEE80211_HW_CONNECTION_MONITOR |
279 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
280 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
282 hw->queues = mvm->first_agg_queue;
283 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
284 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
285 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
286 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
287 hw->rate_control_algorithm = "iwl-mvm-rs";
290 * Enable 11w if advertised by firmware and software crypto
291 * is not enabled (as the firmware will interpret some mgmt
292 * packets, so enabling it with software crypto isn't safe)
294 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
295 !iwlwifi_mod_params.sw_crypto)
296 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
298 if (0 && mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
299 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
300 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
301 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
304 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
305 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
306 hw->chanctx_data_size = sizeof(u16);
308 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
309 BIT(NL80211_IFTYPE_P2P_CLIENT) |
310 BIT(NL80211_IFTYPE_AP) |
311 BIT(NL80211_IFTYPE_P2P_GO) |
312 BIT(NL80211_IFTYPE_P2P_DEVICE) |
313 BIT(NL80211_IFTYPE_ADHOC);
315 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
316 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
317 REGULATORY_DISABLE_BEACON_HINTS;
319 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
320 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
322 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
323 hw->wiphy->n_iface_combinations =
324 ARRAY_SIZE(iwl_mvm_iface_combinations);
326 hw->wiphy->max_remain_on_channel_duration = 10000;
327 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
329 /* Extract MAC address */
330 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
331 hw->wiphy->addresses = mvm->addresses;
332 hw->wiphy->n_addresses = 1;
334 /* Extract additional MAC addresses if available */
335 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
336 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
338 for (i = 1; i < num_mac; i++) {
339 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
341 mvm->addresses[i].addr[5]++;
342 hw->wiphy->n_addresses++;
345 iwl_mvm_reset_phy_ctxts(mvm);
347 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
349 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
351 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
352 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
353 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
354 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
355 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
356 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
358 hw->wiphy->hw_version = mvm->trans->hw_id;
360 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
361 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
363 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
365 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
366 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
367 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
368 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
369 /* we create the 802.11 header and zero length SSID IE. */
370 hw->wiphy->max_sched_scan_ie_len =
371 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
374 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
375 NL80211_FEATURE_P2P_GO_OPPPS;
377 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
379 /* currently FW API supports only one optional cipher scheme */
380 if (mvm->fw->cs[0].cipher) {
381 mvm->hw->n_cipher_schemes = 1;
382 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
385 #ifdef CONFIG_PM_SLEEP
386 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
387 mvm->trans->ops->d3_suspend &&
388 mvm->trans->ops->d3_resume &&
389 device_can_wakeup(mvm->trans->dev)) {
390 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
391 WIPHY_WOWLAN_DISCONNECT |
392 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
393 WIPHY_WOWLAN_RFKILL_RELEASE;
394 if (!iwlwifi_mod_params.sw_crypto)
395 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
396 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
397 WIPHY_WOWLAN_4WAY_HANDSHAKE;
399 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
400 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
401 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
402 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
403 hw->wiphy->wowlan = &mvm->wowlan;
407 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
408 /* assign default bcast filtering configuration */
409 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
412 ret = iwl_mvm_leds_init(mvm);
416 ret = ieee80211_register_hw(mvm->hw);
418 iwl_mvm_leds_exit(mvm);
423 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
424 struct ieee80211_sta *sta,
427 struct iwl_mvm_sta *mvmsta;
431 * double check the IN_D0I3 flag both before and after
432 * taking the spinlock, in order to prevent taking
433 * the spinlock when not needed.
435 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
438 spin_lock(&mvm->d0i3_tx_lock);
440 * testing the flag again ensures the skb dequeue
441 * loop (on d0i3 exit) hasn't run yet.
443 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
446 mvmsta = iwl_mvm_sta_from_mac80211(sta);
447 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
448 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
451 __skb_queue_tail(&mvm->d0i3_tx, skb);
452 ieee80211_stop_queues(mvm->hw);
455 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
456 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
460 spin_unlock(&mvm->d0i3_tx_lock);
464 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
465 struct ieee80211_tx_control *control,
468 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
469 struct ieee80211_sta *sta = control->sta;
470 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
471 struct ieee80211_hdr *hdr = (void *)skb->data;
473 if (iwl_mvm_is_radio_killed(mvm)) {
474 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
478 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
479 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
482 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
483 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
484 ieee80211_is_mgmt(hdr->frame_control) &&
485 !ieee80211_is_deauth(hdr->frame_control) &&
486 !ieee80211_is_disassoc(hdr->frame_control) &&
487 !ieee80211_is_action(hdr->frame_control)))
491 if (iwl_mvm_defer_tx(mvm, sta, skb))
493 if (iwl_mvm_tx_skb(mvm, skb, sta))
498 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
502 ieee80211_free_txskb(hw, skb);
505 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
507 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
512 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
514 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
516 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
519 /* enabled by default */
523 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
524 struct ieee80211_vif *vif,
525 enum ieee80211_ampdu_mlme_action action,
526 struct ieee80211_sta *sta, u16 tid,
527 u16 *ssn, u8 buf_size)
529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
531 bool tx_agg_ref = false;
533 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
534 sta->addr, tid, action);
536 if (!(mvm->nvm_data->sku_cap_11n_enable))
539 /* return from D0i3 before starting a new Tx aggregation */
540 if (action == IEEE80211_AMPDU_TX_START) {
541 iwl_mvm_ref(mvm, IWL_MVM_REF_TX_AGG);
545 * wait synchronously until D0i3 exit to get the correct
546 * sequence number for the tid
548 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
549 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), HZ)) {
551 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
556 mutex_lock(&mvm->mutex);
559 case IEEE80211_AMPDU_RX_START:
560 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
564 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
566 case IEEE80211_AMPDU_RX_STOP:
567 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
569 case IEEE80211_AMPDU_TX_START:
570 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
574 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
576 case IEEE80211_AMPDU_TX_STOP_CONT:
577 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
579 case IEEE80211_AMPDU_TX_STOP_FLUSH:
580 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
581 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
583 case IEEE80211_AMPDU_TX_OPERATIONAL:
584 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
591 mutex_unlock(&mvm->mutex);
594 * If the tid is marked as started, we won't use it for offloaded
595 * traffic on the next D0i3 entry. It's safe to unref.
598 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
603 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
604 struct ieee80211_vif *vif)
606 struct iwl_mvm *mvm = data;
607 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
609 mvmvif->uploaded = false;
610 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
612 /* does this make sense at all? */
615 spin_lock_bh(&mvm->time_event_lock);
616 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
617 spin_unlock_bh(&mvm->time_event_lock);
619 mvmvif->phy_ctxt = NULL;
622 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
624 #ifdef CONFIG_IWLWIFI_DEBUGFS
625 static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
627 iwl_mvm_fw_error_dump(mvm);
629 /* notify the userspace about the error we had */
630 kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
633 iwl_trans_stop_device(mvm->trans);
635 mvm->scan_status = IWL_MVM_SCAN_NONE;
637 /* just in case one was running */
638 ieee80211_remain_on_channel_expired(mvm->hw);
640 ieee80211_iterate_active_interfaces_atomic(
641 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
642 iwl_mvm_cleanup_iterator, mvm);
644 mvm->p2p_device_vif = NULL;
645 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
647 iwl_mvm_reset_phy_ctxts(mvm);
648 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
649 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
651 ieee80211_wake_queues(mvm->hw);
653 /* cleanup all stale references (scan, roc), but keep the
654 * ucode_down ref until reconfig is complete */
655 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
658 mvm->rx_ba_sessions = 0;
661 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
663 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
666 mutex_lock(&mvm->mutex);
668 /* Clean up some internal and mac80211 state on restart */
669 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
670 iwl_mvm_restart_cleanup(mvm);
672 ret = iwl_mvm_up(mvm);
673 mutex_unlock(&mvm->mutex);
678 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
680 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
683 mutex_lock(&mvm->mutex);
685 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
686 iwl_mvm_d0i3_enable_tx(mvm, NULL);
687 ret = iwl_mvm_update_quotas(mvm, NULL);
689 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
692 /* allow transport/FW low power modes */
693 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
695 mutex_unlock(&mvm->mutex);
698 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
700 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
702 flush_work(&mvm->d0i3_exit_work);
703 flush_work(&mvm->async_handlers_wk);
705 mutex_lock(&mvm->mutex);
707 /* disallow low power states when the FW is down */
708 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
710 /* async_handlers_wk is now blocked */
713 * The work item could be running or queued if the
714 * ROC time event stops just as we get here.
716 cancel_work_sync(&mvm->roc_done_wk);
718 iwl_trans_stop_device(mvm->trans);
720 iwl_mvm_async_handlers_purge(mvm);
721 /* async_handlers_list is empty and will stay empty: HW is stopped */
723 /* the fw is stopped, the aux sta is dead: clean up driver state */
724 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
726 mutex_unlock(&mvm->mutex);
729 * The worker might have been waiting for the mutex, let it run and
730 * discover that its list is now empty.
732 cancel_work_sync(&mvm->async_handlers_wk);
735 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
739 lockdep_assert_held(&mvm->mutex);
741 for (i = 0; i < NUM_PHY_CTX; i++)
742 if (!mvm->phy_ctxts[i].ref)
743 return &mvm->phy_ctxts[i];
745 IWL_ERR(mvm, "No available PHY context\n");
749 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
752 /* FW is in charge of regulatory enforcement */
753 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
754 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
755 .pwr_restriction = cpu_to_le16(tx_power),
758 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
759 sizeof(reduce_txpwr_cmd),
763 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
764 struct ieee80211_vif *vif)
766 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
771 * Not much to do here. The stack will not allow interface
772 * types or combinations that we didn't advertise, so we
773 * don't really have to check the types.
776 mutex_lock(&mvm->mutex);
778 /* Allocate resources for the MAC context, and add it to the fw */
779 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
783 /* Counting number of interfaces is needed for legacy PM */
784 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
788 * The AP binding flow can be done only after the beacon
789 * template is configured (which happens only in the mac80211
790 * start_ap() flow), and adding the broadcast station can happen
791 * only after the binding.
792 * In addition, since modifying the MAC before adding a bcast
793 * station is not allowed by the FW, delay the adding of MAC context to
794 * the point where we can also add the bcast station.
795 * In short: there's not much we can do at this point, other than
796 * allocating resources :)
798 if (vif->type == NL80211_IFTYPE_AP ||
799 vif->type == NL80211_IFTYPE_ADHOC) {
800 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
801 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
803 ieee80211_vif_type_p2p(vif));
805 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
809 iwl_mvm_vif_dbgfs_register(mvm, vif);
813 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
817 ret = iwl_mvm_power_update_mac(mvm, vif);
821 /* beacon filtering */
822 ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
826 if (!mvm->bf_allowed_vif &&
827 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
828 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
829 mvm->bf_allowed_vif = mvmvif;
830 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
831 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
835 * P2P_DEVICE interface does not have a channel context assigned to it,
836 * so a dedicated PHY context is allocated to it and the corresponding
837 * MAC context is bound to it at this stage.
839 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
841 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
842 if (!mvmvif->phy_ctxt) {
847 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
848 ret = iwl_mvm_binding_add_vif(mvm, vif);
852 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
856 /* Save a pointer to p2p device vif, so it can later be used to
857 * update the p2p device MAC when a GO is started/stopped */
858 mvm->p2p_device_vif = vif;
861 iwl_mvm_vif_dbgfs_register(mvm, vif);
865 iwl_mvm_binding_remove_vif(mvm, vif);
867 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
869 if (mvm->bf_allowed_vif == mvmvif) {
870 mvm->bf_allowed_vif = NULL;
871 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
872 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
875 mvmvif->phy_ctxt = NULL;
876 iwl_mvm_mac_ctxt_remove(mvm, vif);
878 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
881 iwl_mvm_mac_ctxt_release(mvm, vif);
883 mutex_unlock(&mvm->mutex);
888 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
889 struct ieee80211_vif *vif)
893 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
894 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
895 tfd_msk |= BIT(vif->hw_queue[ac]);
897 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
898 tfd_msk |= BIT(vif->cab_queue);
901 mutex_lock(&mvm->mutex);
902 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
903 mutex_unlock(&mvm->mutex);
906 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
908 * Flush the ROC worker which will flush the OFFCHANNEL queue.
909 * We assume here that all the packets sent to the OFFCHANNEL
910 * queue are sent in ROC session.
912 flush_work(&mvm->roc_done_wk);
915 * By now, all the AC queues are empty. The AGG queues are
916 * empty too. We already got all the Tx responses for all the
917 * packets in the queues. The drain work can have been
918 * triggered. Flush it.
920 flush_work(&mvm->sta_drained_wk);
924 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
925 struct ieee80211_vif *vif)
927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
928 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
930 iwl_mvm_prepare_mac_removal(mvm, vif);
932 mutex_lock(&mvm->mutex);
934 if (mvm->bf_allowed_vif == mvmvif) {
935 mvm->bf_allowed_vif = NULL;
936 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
937 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
940 iwl_mvm_vif_dbgfs_clean(mvm, vif);
943 * For AP/GO interface, the tear down of the resources allocated to the
944 * interface is be handled as part of the stop_ap flow.
946 if (vif->type == NL80211_IFTYPE_AP ||
947 vif->type == NL80211_IFTYPE_ADHOC) {
948 #ifdef CONFIG_NL80211_TESTMODE
949 if (vif == mvm->noa_vif) {
951 mvm->noa_duration = 0;
954 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
958 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
959 mvm->p2p_device_vif = NULL;
960 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
961 iwl_mvm_binding_remove_vif(mvm, vif);
962 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
963 mvmvif->phy_ctxt = NULL;
966 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
969 iwl_mvm_power_update_mac(mvm, vif);
970 iwl_mvm_mac_ctxt_remove(mvm, vif);
973 iwl_mvm_mac_ctxt_release(mvm, vif);
974 mutex_unlock(&mvm->mutex);
977 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
982 struct iwl_mvm_mc_iter_data {
987 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
988 struct ieee80211_vif *vif)
990 struct iwl_mvm_mc_iter_data *data = _data;
991 struct iwl_mvm *mvm = data->mvm;
992 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
995 /* if we don't have free ports, mcast frames will be dropped */
996 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
999 if (vif->type != NL80211_IFTYPE_STATION ||
1000 !vif->bss_conf.assoc)
1003 cmd->port_id = data->port_id++;
1004 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1005 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1007 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
1009 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1012 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1014 struct iwl_mvm_mc_iter_data iter_data = {
1018 lockdep_assert_held(&mvm->mutex);
1020 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1023 ieee80211_iterate_active_interfaces(
1024 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1025 iwl_mvm_mc_iface_iterator, &iter_data);
1028 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1029 struct netdev_hw_addr_list *mc_list)
1031 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1032 struct iwl_mcast_filter_cmd *cmd;
1033 struct netdev_hw_addr *addr;
1034 int addr_count = netdev_hw_addr_list_count(mc_list);
1035 bool pass_all = false;
1038 if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
1043 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1044 cmd = kzalloc(len, GFP_ATOMIC);
1050 return (u64)(unsigned long)cmd;
1053 netdev_hw_addr_list_for_each(addr, mc_list) {
1054 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1055 cmd->count, addr->addr);
1056 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1057 addr->addr, ETH_ALEN);
1061 return (u64)(unsigned long)cmd;
1064 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1065 unsigned int changed_flags,
1066 unsigned int *total_flags,
1069 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1070 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1072 mutex_lock(&mvm->mutex);
1074 /* replace previous configuration */
1075 kfree(mvm->mcast_filter_cmd);
1076 mvm->mcast_filter_cmd = cmd;
1081 iwl_mvm_recalc_multicast(mvm);
1083 mutex_unlock(&mvm->mutex);
1087 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1088 struct iwl_bcast_iter_data {
1089 struct iwl_mvm *mvm;
1090 struct iwl_bcast_filter_cmd *cmd;
1095 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1096 const struct iwl_fw_bcast_filter *in_filter,
1097 struct iwl_fw_bcast_filter *out_filter)
1099 struct iwl_fw_bcast_filter_attr *attr;
1102 memcpy(out_filter, in_filter, sizeof(*out_filter));
1104 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1105 attr = &out_filter->attrs[i];
1110 switch (attr->reserved1) {
1111 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1112 if (vif->bss_conf.arp_addr_cnt != 1) {
1117 attr->val = vif->bss_conf.arp_addr_list[0];
1119 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1120 attr->val = *(__be32 *)&vif->addr[2];
1125 attr->reserved1 = 0;
1126 out_filter->num_attrs++;
1130 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1131 struct ieee80211_vif *vif)
1133 struct iwl_bcast_iter_data *data = _data;
1134 struct iwl_mvm *mvm = data->mvm;
1135 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1136 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1137 struct iwl_fw_bcast_mac *bcast_mac;
1140 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1143 bcast_mac = &cmd->macs[mvmvif->id];
1145 /* enable filtering only for associated stations */
1146 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1149 bcast_mac->default_discard = 1;
1151 /* copy all configured filters */
1152 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1154 * Make sure we don't exceed our filters limit.
1155 * if there is still a valid filter to be configured,
1156 * be on the safe side and just allow bcast for this mac.
1158 if (WARN_ON_ONCE(data->current_filter >=
1159 ARRAY_SIZE(cmd->filters))) {
1160 bcast_mac->default_discard = 0;
1161 bcast_mac->attached_filters = 0;
1165 iwl_mvm_set_bcast_filter(vif,
1166 &mvm->bcast_filters[i],
1167 &cmd->filters[data->current_filter]);
1169 /* skip current filter if it contains no attributes */
1170 if (!cmd->filters[data->current_filter].num_attrs)
1173 /* attach the filter to current mac */
1174 bcast_mac->attached_filters |=
1175 cpu_to_le16(BIT(data->current_filter));
1177 data->current_filter++;
1181 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1182 struct iwl_bcast_filter_cmd *cmd)
1184 struct iwl_bcast_iter_data iter_data = {
1189 memset(cmd, 0, sizeof(*cmd));
1190 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1191 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1193 #ifdef CONFIG_IWLWIFI_DEBUGFS
1194 /* use debugfs filters/macs if override is configured */
1195 if (mvm->dbgfs_bcast_filtering.override) {
1196 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1197 sizeof(cmd->filters));
1198 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1204 /* if no filters are configured, do nothing */
1205 if (!mvm->bcast_filters)
1208 /* configure and attach these filters for each associated sta vif */
1209 ieee80211_iterate_active_interfaces(
1210 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1211 iwl_mvm_bcast_filter_iterator, &iter_data);
1215 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1216 struct ieee80211_vif *vif)
1218 struct iwl_bcast_filter_cmd cmd;
1220 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1223 /* bcast filtering isn't supported for P2P client */
1227 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1230 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
1234 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1235 struct ieee80211_vif *vif)
1241 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1242 struct ieee80211_vif *vif,
1243 struct ieee80211_bss_conf *bss_conf,
1246 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1250 * Re-calculate the tsf id, as the master-slave relations depend on the
1251 * beacon interval, which was not known when the station interface was
1254 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1255 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1257 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1259 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1261 if (changes & BSS_CHANGED_ASSOC) {
1262 if (bss_conf->assoc) {
1263 /* add quota for this interface */
1264 ret = iwl_mvm_update_quotas(mvm, vif);
1266 IWL_ERR(mvm, "failed to update quotas\n");
1270 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1273 * If we're restarting then the firmware will
1274 * obviously have lost synchronisation with
1275 * the AP. It will attempt to synchronise by
1276 * itself, but we can make it more reliable by
1277 * scheduling a session protection time event.
1279 * The firmware needs to receive a beacon to
1280 * catch up with synchronisation, use 110% of
1281 * the beacon interval.
1283 * Set a large maximum delay to allow for more
1284 * than a single interface.
1286 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1287 iwl_mvm_protect_session(mvm, vif, dur, dur,
1291 iwl_mvm_sf_update(mvm, vif, false);
1292 iwl_mvm_power_vif_assoc(mvm, vif);
1294 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1295 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1297 * If update fails - SF might be running in associated
1298 * mode while disassociated - which is forbidden.
1300 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1301 "Failed to update SF upon disassociation\n");
1303 /* remove AP station now that the MAC is unassoc */
1304 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1306 IWL_ERR(mvm, "failed to remove AP station\n");
1308 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1309 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1310 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1311 /* remove quota for this interface */
1312 ret = iwl_mvm_update_quotas(mvm, NULL);
1314 IWL_ERR(mvm, "failed to update quotas\n");
1317 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1320 iwl_mvm_recalc_multicast(mvm);
1321 iwl_mvm_configure_bcast_filter(mvm, vif);
1323 /* reset rssi values */
1324 mvmvif->bf_data.ave_beacon_signal = 0;
1326 iwl_mvm_bt_coex_vif_change(mvm);
1327 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1328 IEEE80211_SMPS_AUTOMATIC);
1329 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1331 * We received a beacon _after_ association so
1332 * remove the session protection.
1334 iwl_mvm_remove_time_event(mvm, mvmvif,
1335 &mvmvif->time_event_data);
1336 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1337 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1339 ret = iwl_mvm_power_update_mac(mvm, vif);
1341 IWL_ERR(mvm, "failed to update power mode\n");
1343 if (changes & BSS_CHANGED_TXPOWER) {
1344 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1346 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1349 if (changes & BSS_CHANGED_CQM) {
1350 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1351 /* reset cqm events tracking */
1352 mvmvif->bf_data.last_cqm_event = 0;
1353 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1355 IWL_ERR(mvm, "failed to update CQM thresholds\n");
1358 if (changes & BSS_CHANGED_ARP_FILTER) {
1359 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1360 iwl_mvm_configure_bcast_filter(mvm, vif);
1364 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1365 struct ieee80211_vif *vif)
1367 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1368 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1371 mutex_lock(&mvm->mutex);
1373 /* Send the beacon template */
1374 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1379 * Re-calculate the tsf id, as the master-slave relations depend on the
1380 * beacon interval, which was not known when the AP interface was added.
1382 if (vif->type == NL80211_IFTYPE_AP)
1383 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1385 /* Add the mac context */
1386 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1390 /* Perform the binding */
1391 ret = iwl_mvm_binding_add_vif(mvm, vif);
1395 /* Send the bcast station. At this stage the TBTT and DTIM time events
1396 * are added and applied to the scheduler */
1397 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1401 /* must be set before quota calculations */
1402 mvmvif->ap_ibss_active = true;
1404 /* power updated needs to be done before quotas */
1405 iwl_mvm_power_update_mac(mvm, vif);
1407 ret = iwl_mvm_update_quotas(mvm, vif);
1409 goto out_quota_failed;
1411 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1412 if (vif->p2p && mvm->p2p_device_vif)
1413 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1415 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1417 iwl_mvm_bt_coex_vif_change(mvm);
1419 mutex_unlock(&mvm->mutex);
1423 iwl_mvm_power_update_mac(mvm, vif);
1424 mvmvif->ap_ibss_active = false;
1425 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1427 iwl_mvm_binding_remove_vif(mvm, vif);
1429 iwl_mvm_mac_ctxt_remove(mvm, vif);
1431 mutex_unlock(&mvm->mutex);
1435 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1436 struct ieee80211_vif *vif)
1438 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1439 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1441 iwl_mvm_prepare_mac_removal(mvm, vif);
1443 mutex_lock(&mvm->mutex);
1445 mvmvif->ap_ibss_active = false;
1447 iwl_mvm_bt_coex_vif_change(mvm);
1449 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1451 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1452 if (vif->p2p && mvm->p2p_device_vif)
1453 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1455 iwl_mvm_update_quotas(mvm, NULL);
1456 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1457 iwl_mvm_binding_remove_vif(mvm, vif);
1459 iwl_mvm_power_update_mac(mvm, vif);
1461 iwl_mvm_mac_ctxt_remove(mvm, vif);
1463 mutex_unlock(&mvm->mutex);
1467 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1468 struct ieee80211_vif *vif,
1469 struct ieee80211_bss_conf *bss_conf,
1472 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1474 /* Changes will be applied when the AP/IBSS is started */
1475 if (!mvmvif->ap_ibss_active)
1478 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1479 BSS_CHANGED_BANDWIDTH) &&
1480 iwl_mvm_mac_ctxt_changed(mvm, vif))
1481 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1483 /* Need to send a new beacon template to the FW */
1484 if (changes & BSS_CHANGED_BEACON &&
1485 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1486 IWL_WARN(mvm, "Failed updating beacon data\n");
1489 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1490 struct ieee80211_vif *vif,
1491 struct ieee80211_bss_conf *bss_conf,
1494 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1496 mutex_lock(&mvm->mutex);
1498 switch (vif->type) {
1499 case NL80211_IFTYPE_STATION:
1500 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1502 case NL80211_IFTYPE_AP:
1503 case NL80211_IFTYPE_ADHOC:
1504 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1507 /* shouldn't happen */
1511 mutex_unlock(&mvm->mutex);
1514 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1515 struct ieee80211_vif *vif,
1516 struct cfg80211_scan_request *req)
1518 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1521 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1524 mutex_lock(&mvm->mutex);
1526 switch (mvm->scan_status) {
1527 case IWL_MVM_SCAN_SCHED:
1528 ret = iwl_mvm_sched_scan_stop(mvm);
1534 case IWL_MVM_SCAN_NONE:
1541 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1543 ret = iwl_mvm_scan_request(mvm, vif, req);
1545 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1547 mutex_unlock(&mvm->mutex);
1548 /* make sure to flush the Rx handler before the next scan arrives */
1549 iwl_mvm_wait_for_async_handlers(mvm);
1553 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1554 struct ieee80211_vif *vif)
1556 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1558 mutex_lock(&mvm->mutex);
1560 iwl_mvm_cancel_scan(mvm);
1562 mutex_unlock(&mvm->mutex);
1566 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1567 struct ieee80211_sta *sta, u16 tids,
1569 enum ieee80211_frame_release_type reason,
1572 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1574 /* Called when we need to transmit (a) frame(s) from mac80211 */
1576 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1577 tids, more_data, false);
1581 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1582 struct ieee80211_sta *sta, u16 tids,
1584 enum ieee80211_frame_release_type reason,
1587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1589 /* Called when we need to transmit (a) frame(s) from agg queue */
1591 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1592 tids, more_data, true);
1595 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1596 struct ieee80211_vif *vif,
1597 enum sta_notify_cmd cmd,
1598 struct ieee80211_sta *sta)
1600 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1601 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1605 case STA_NOTIFY_SLEEP:
1606 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1607 ieee80211_sta_block_awake(hw, sta, true);
1608 spin_lock_bh(&mvmsta->lock);
1609 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1610 struct iwl_mvm_tid_data *tid_data;
1612 tid_data = &mvmsta->tid_data[tid];
1613 if (tid_data->state != IWL_AGG_ON &&
1614 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1616 if (iwl_mvm_tid_queued(tid_data) == 0)
1618 ieee80211_sta_set_buffered(sta, tid, true);
1620 spin_unlock_bh(&mvmsta->lock);
1622 * The fw updates the STA to be asleep. Tx packets on the Tx
1623 * queues to this station will not be transmitted. The fw will
1624 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1627 case STA_NOTIFY_AWAKE:
1628 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1630 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1637 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1638 struct ieee80211_vif *vif,
1639 struct ieee80211_sta *sta)
1641 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1642 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1645 * This is called before mac80211 does RCU synchronisation,
1646 * so here we already invalidate our internal RCU-protected
1647 * station pointer. The rest of the code will thus no longer
1648 * be able to find the station this way, and we don't rely
1649 * on further RCU synchronisation after the sta_state()
1650 * callback deleted the station.
1652 mutex_lock(&mvm->mutex);
1653 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1654 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1656 mutex_unlock(&mvm->mutex);
1659 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1660 struct ieee80211_vif *vif,
1661 struct ieee80211_sta *sta,
1662 enum ieee80211_sta_state old_state,
1663 enum ieee80211_sta_state new_state)
1665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1666 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1669 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1670 sta->addr, old_state, new_state);
1672 /* this would be a mac80211 bug ... but don't crash */
1673 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1676 /* if a STA is being removed, reuse its ID */
1677 flush_work(&mvm->sta_drained_wk);
1679 mutex_lock(&mvm->mutex);
1680 if (old_state == IEEE80211_STA_NOTEXIST &&
1681 new_state == IEEE80211_STA_NONE) {
1683 * Firmware bug - it'll crash if the beacon interval is less
1684 * than 16. We can't avoid connecting at all, so refuse the
1685 * station state change, this will cause mac80211 to abandon
1686 * attempts to connect to this AP, and eventually wpa_s will
1687 * blacklist the AP...
1689 if (vif->type == NL80211_IFTYPE_STATION &&
1690 vif->bss_conf.beacon_int < 16) {
1692 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1693 sta->addr, vif->bss_conf.beacon_int);
1697 ret = iwl_mvm_add_sta(mvm, vif, sta);
1698 } else if (old_state == IEEE80211_STA_NONE &&
1699 new_state == IEEE80211_STA_AUTH) {
1701 } else if (old_state == IEEE80211_STA_AUTH &&
1702 new_state == IEEE80211_STA_ASSOC) {
1703 ret = iwl_mvm_update_sta(mvm, vif, sta);
1705 iwl_mvm_rs_rate_init(mvm, sta,
1706 mvmvif->phy_ctxt->channel->band,
1708 } else if (old_state == IEEE80211_STA_ASSOC &&
1709 new_state == IEEE80211_STA_AUTHORIZED) {
1710 /* enable beacon filtering */
1711 if (vif->bss_conf.dtim_period)
1712 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif,
1715 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1716 new_state == IEEE80211_STA_ASSOC) {
1717 /* disable beacon filtering */
1718 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1720 } else if (old_state == IEEE80211_STA_ASSOC &&
1721 new_state == IEEE80211_STA_AUTH) {
1723 } else if (old_state == IEEE80211_STA_AUTH &&
1724 new_state == IEEE80211_STA_NONE) {
1726 } else if (old_state == IEEE80211_STA_NONE &&
1727 new_state == IEEE80211_STA_NOTEXIST) {
1728 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1733 mutex_unlock(&mvm->mutex);
1738 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1740 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1742 mvm->rts_threshold = value;
1747 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1748 struct ieee80211_vif *vif,
1749 struct ieee80211_sta *sta, u32 changed)
1751 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1753 if (vif->type == NL80211_IFTYPE_STATION &&
1754 changed & IEEE80211_RC_NSS_CHANGED)
1755 iwl_mvm_sf_update(mvm, vif, false);
1758 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1759 struct ieee80211_vif *vif, u16 ac,
1760 const struct ieee80211_tx_queue_params *params)
1762 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1763 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1765 mvmvif->queue_params[ac] = *params;
1768 * No need to update right away, we'll get BSS_CHANGED_QOS
1769 * The exception is P2P_DEVICE interface which needs immediate update.
1771 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1774 mutex_lock(&mvm->mutex);
1775 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1776 mutex_unlock(&mvm->mutex);
1782 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1783 struct ieee80211_vif *vif)
1785 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1786 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1787 200 + vif->bss_conf.beacon_int);
1788 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1789 100 + vif->bss_conf.beacon_int);
1791 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1794 mutex_lock(&mvm->mutex);
1795 /* Try really hard to protect the session and hear a beacon */
1796 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1797 mutex_unlock(&mvm->mutex);
1800 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1801 struct ieee80211_vif *vif,
1802 struct cfg80211_sched_scan_request *req,
1803 struct ieee80211_sched_scan_ies *ies)
1805 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1808 mutex_lock(&mvm->mutex);
1810 switch (mvm->scan_status) {
1811 case IWL_MVM_SCAN_OS:
1812 IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n");
1813 ret = iwl_mvm_cancel_scan(mvm);
1820 * iwl_mvm_rx_scan_complete() will be called soon but will
1821 * not reset the scan status as it won't be IWL_MVM_SCAN_OS
1822 * any more since we queue the next scan immediately (below).
1823 * We make sure it is called before the next scan starts by
1824 * flushing the async-handlers work.
1827 case IWL_MVM_SCAN_NONE:
1834 mvm->scan_status = IWL_MVM_SCAN_SCHED;
1836 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1840 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1844 ret = iwl_mvm_sched_scan_start(mvm, req);
1848 mvm->scan_status = IWL_MVM_SCAN_NONE;
1850 mutex_unlock(&mvm->mutex);
1851 /* make sure to flush the Rx handler before the next scan arrives */
1852 iwl_mvm_wait_for_async_handlers(mvm);
1856 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1857 struct ieee80211_vif *vif)
1859 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1862 mutex_lock(&mvm->mutex);
1863 ret = iwl_mvm_sched_scan_stop(mvm);
1864 mutex_unlock(&mvm->mutex);
1865 iwl_mvm_wait_for_async_handlers(mvm);
1870 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1871 enum set_key_cmd cmd,
1872 struct ieee80211_vif *vif,
1873 struct ieee80211_sta *sta,
1874 struct ieee80211_key_conf *key)
1876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1879 if (iwlwifi_mod_params.sw_crypto) {
1880 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1884 switch (key->cipher) {
1885 case WLAN_CIPHER_SUITE_TKIP:
1886 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1888 case WLAN_CIPHER_SUITE_CCMP:
1889 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1891 case WLAN_CIPHER_SUITE_AES_CMAC:
1892 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1894 case WLAN_CIPHER_SUITE_WEP40:
1895 case WLAN_CIPHER_SUITE_WEP104:
1897 * Support for TX only, at least for now, so accept
1898 * the key and do nothing else. Then mac80211 will
1899 * pass it for TX but we don't have to use it for RX.
1903 /* currently FW supports only one optional cipher scheme */
1904 if (hw->n_cipher_schemes &&
1905 hw->cipher_schemes->cipher == key->cipher)
1906 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1911 mutex_lock(&mvm->mutex);
1915 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1916 vif->type == NL80211_IFTYPE_AP) && !sta) {
1918 * GTK on AP interface is a TX-only key, return 0;
1919 * on IBSS they're per-station and because we're lazy
1920 * we don't support them for RX, so do the same.
1923 key->hw_key_idx = STA_KEY_IDX_INVALID;
1927 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1928 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1930 IWL_WARN(mvm, "set key failed\n");
1932 * can't add key for RX, but we don't need it
1933 * in the device for TX so still return 0
1935 key->hw_key_idx = STA_KEY_IDX_INVALID;
1941 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1946 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1947 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1953 mutex_unlock(&mvm->mutex);
1957 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1958 struct ieee80211_vif *vif,
1959 struct ieee80211_key_conf *keyconf,
1960 struct ieee80211_sta *sta,
1961 u32 iv32, u16 *phase1key)
1963 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1965 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1968 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1972 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1973 struct ieee80211_vif *vif,
1974 struct ieee80211_channel *channel,
1976 enum ieee80211_roc_type type)
1978 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1979 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1980 struct cfg80211_chan_def chandef;
1981 struct iwl_mvm_phy_ctxt *phy_ctxt;
1984 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1987 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1988 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1992 mutex_lock(&mvm->mutex);
1994 for (i = 0; i < NUM_PHY_CTX; i++) {
1995 phy_ctxt = &mvm->phy_ctxts[i];
1996 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1999 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2001 * Unbind the P2P_DEVICE from the current PHY context,
2002 * and if the PHY context is not used remove it.
2004 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2005 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2008 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2010 /* Bind the P2P_DEVICE to the current PHY Context */
2011 mvmvif->phy_ctxt = phy_ctxt;
2013 ret = iwl_mvm_binding_add_vif(mvm, vif);
2014 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2017 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2018 goto schedule_time_event;
2022 /* Need to update the PHY context only if the ROC channel changed */
2023 if (channel == mvmvif->phy_ctxt->channel)
2024 goto schedule_time_event;
2026 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2029 * Change the PHY context configuration as it is currently referenced
2030 * only by the P2P Device MAC
2032 if (mvmvif->phy_ctxt->ref == 1) {
2033 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2039 * The PHY context is shared with other MACs. Need to remove the
2040 * P2P Device from the binding, allocate an new PHY context and
2041 * create a new binding
2043 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2049 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2052 IWL_ERR(mvm, "Failed to change PHY context\n");
2056 /* Unbind the P2P_DEVICE from the current PHY context */
2057 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2058 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2061 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2063 /* Bind the P2P_DEVICE to the new allocated PHY context */
2064 mvmvif->phy_ctxt = phy_ctxt;
2066 ret = iwl_mvm_binding_add_vif(mvm, vif);
2067 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2070 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2073 schedule_time_event:
2074 /* Schedule the time events */
2075 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2078 mutex_unlock(&mvm->mutex);
2079 IWL_DEBUG_MAC80211(mvm, "leave\n");
2083 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2085 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2087 IWL_DEBUG_MAC80211(mvm, "enter\n");
2089 mutex_lock(&mvm->mutex);
2090 iwl_mvm_stop_p2p_roc(mvm);
2091 mutex_unlock(&mvm->mutex);
2093 IWL_DEBUG_MAC80211(mvm, "leave\n");
2097 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2098 struct ieee80211_chanctx_conf *ctx)
2100 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2101 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2102 struct iwl_mvm_phy_ctxt *phy_ctxt;
2105 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2107 mutex_lock(&mvm->mutex);
2108 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2114 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2115 ctx->rx_chains_static,
2116 ctx->rx_chains_dynamic);
2118 IWL_ERR(mvm, "Failed to add PHY context\n");
2122 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2123 *phy_ctxt_id = phy_ctxt->id;
2125 mutex_unlock(&mvm->mutex);
2129 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2130 struct ieee80211_chanctx_conf *ctx)
2132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2133 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2134 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2136 mutex_lock(&mvm->mutex);
2137 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2138 mutex_unlock(&mvm->mutex);
2141 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2142 struct ieee80211_chanctx_conf *ctx,
2145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2146 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2147 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2149 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2150 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2151 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2152 IEEE80211_CHANCTX_CHANGE_RADAR |
2153 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2154 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2155 phy_ctxt->ref, changed))
2158 mutex_lock(&mvm->mutex);
2159 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2160 ctx->rx_chains_static,
2161 ctx->rx_chains_dynamic);
2162 iwl_mvm_bt_coex_vif_change(mvm);
2163 mutex_unlock(&mvm->mutex);
2166 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2167 struct ieee80211_vif *vif,
2168 struct ieee80211_chanctx_conf *ctx)
2170 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2171 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2172 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2173 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2176 mutex_lock(&mvm->mutex);
2178 mvmvif->phy_ctxt = phy_ctxt;
2180 switch (vif->type) {
2181 case NL80211_IFTYPE_AP:
2182 case NL80211_IFTYPE_ADHOC:
2184 * The AP binding flow is handled as part of the start_ap flow
2185 * (in bss_info_changed), similarly for IBSS.
2189 case NL80211_IFTYPE_STATION:
2190 case NL80211_IFTYPE_MONITOR:
2197 ret = iwl_mvm_binding_add_vif(mvm, vif);
2202 * Power state must be updated before quotas,
2203 * otherwise fw will complain.
2205 iwl_mvm_power_update_mac(mvm, vif);
2207 /* Setting the quota at this stage is only required for monitor
2208 * interfaces. For the other types, the bss_info changed flow
2209 * will handle quota settings.
2211 if (vif->type == NL80211_IFTYPE_MONITOR) {
2212 mvmvif->monitor_active = true;
2213 ret = iwl_mvm_update_quotas(mvm, vif);
2215 goto out_remove_binding;
2221 iwl_mvm_binding_remove_vif(mvm, vif);
2222 iwl_mvm_power_update_mac(mvm, vif);
2224 mutex_unlock(&mvm->mutex);
2226 mvmvif->phy_ctxt = NULL;
2230 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2231 struct ieee80211_vif *vif,
2232 struct ieee80211_chanctx_conf *ctx)
2234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2235 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2237 mutex_lock(&mvm->mutex);
2239 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2241 switch (vif->type) {
2242 case NL80211_IFTYPE_AP:
2243 case NL80211_IFTYPE_ADHOC:
2245 case NL80211_IFTYPE_MONITOR:
2246 mvmvif->monitor_active = false;
2247 iwl_mvm_update_quotas(mvm, NULL);
2253 iwl_mvm_binding_remove_vif(mvm, vif);
2254 iwl_mvm_power_update_mac(mvm, vif);
2257 mvmvif->phy_ctxt = NULL;
2258 mutex_unlock(&mvm->mutex);
2261 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2262 struct ieee80211_sta *sta,
2265 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2266 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2268 if (!mvm_sta || !mvm_sta->vif) {
2269 IWL_ERR(mvm, "Station is not associated to a vif\n");
2273 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2276 #ifdef CONFIG_NL80211_TESTMODE
2277 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2278 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2279 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2280 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2283 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2284 struct ieee80211_vif *vif,
2285 void *data, int len)
2287 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2291 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2295 if (!tb[IWL_MVM_TM_ATTR_CMD])
2298 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2299 case IWL_MVM_TM_CMD_SET_NOA:
2300 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2301 !vif->bss_conf.enable_beacon ||
2302 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2305 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2306 if (noa_duration >= vif->bss_conf.beacon_int)
2309 mvm->noa_duration = noa_duration;
2312 return iwl_mvm_update_quotas(mvm, NULL);
2313 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2314 /* must be associated client vif - ignore authorized */
2315 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2316 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2317 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2320 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2321 return iwl_mvm_enable_beacon_filter(mvm, vif,
2323 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2329 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2330 struct ieee80211_vif *vif,
2331 void *data, int len)
2333 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2336 mutex_lock(&mvm->mutex);
2337 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2338 mutex_unlock(&mvm->mutex);
2344 const struct ieee80211_ops iwl_mvm_hw_ops = {
2345 .tx = iwl_mvm_mac_tx,
2346 .ampdu_action = iwl_mvm_mac_ampdu_action,
2347 .start = iwl_mvm_mac_start,
2348 .restart_complete = iwl_mvm_mac_restart_complete,
2349 .stop = iwl_mvm_mac_stop,
2350 .add_interface = iwl_mvm_mac_add_interface,
2351 .remove_interface = iwl_mvm_mac_remove_interface,
2352 .config = iwl_mvm_mac_config,
2353 .prepare_multicast = iwl_mvm_prepare_multicast,
2354 .configure_filter = iwl_mvm_configure_filter,
2355 .bss_info_changed = iwl_mvm_bss_info_changed,
2356 .hw_scan = iwl_mvm_mac_hw_scan,
2357 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2358 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2359 .sta_state = iwl_mvm_mac_sta_state,
2360 .sta_notify = iwl_mvm_mac_sta_notify,
2361 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2362 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2363 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2364 .sta_rc_update = iwl_mvm_sta_rc_update,
2365 .conf_tx = iwl_mvm_mac_conf_tx,
2366 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2367 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2368 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2369 .set_key = iwl_mvm_mac_set_key,
2370 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2371 .remain_on_channel = iwl_mvm_roc,
2372 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2373 .add_chanctx = iwl_mvm_add_chanctx,
2374 .remove_chanctx = iwl_mvm_remove_chanctx,
2375 .change_chanctx = iwl_mvm_change_chanctx,
2376 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2377 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2379 .start_ap = iwl_mvm_start_ap_ibss,
2380 .stop_ap = iwl_mvm_stop_ap_ibss,
2381 .join_ibss = iwl_mvm_start_ap_ibss,
2382 .leave_ibss = iwl_mvm_stop_ap_ibss,
2384 .set_tim = iwl_mvm_set_tim,
2386 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2388 #ifdef CONFIG_PM_SLEEP
2390 .suspend = iwl_mvm_suspend,
2391 .resume = iwl_mvm_resume,
2392 .set_wakeup = iwl_mvm_set_wakeup,
2393 .set_rekey_data = iwl_mvm_set_rekey_data,
2394 #if IS_ENABLED(CONFIG_IPV6)
2395 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2397 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,