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>
73 #include "iwl-op-mode.h"
77 #include "time-event.h"
78 #include "iwl-eeprom-parse.h"
79 #include "fw-api-scan.h"
80 #include "iwl-phy-db.h"
83 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
86 .types = BIT(NL80211_IFTYPE_STATION),
90 .types = BIT(NL80211_IFTYPE_AP) |
91 BIT(NL80211_IFTYPE_P2P_CLIENT) |
92 BIT(NL80211_IFTYPE_P2P_GO),
96 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
100 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
102 .num_different_channels = 1,
104 .limits = iwl_mvm_limits,
105 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
109 #ifdef CONFIG_PM_SLEEP
110 static const struct nl80211_wowlan_tcp_data_token_feature
111 iwl_mvm_wowlan_tcp_token_feature = {
114 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
117 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
118 .tok = &iwl_mvm_wowlan_tcp_token_feature,
119 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
120 sizeof(struct ethhdr) -
121 sizeof(struct iphdr) -
122 sizeof(struct tcphdr),
123 .data_interval_max = 65535, /* __le16 in API */
124 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
125 sizeof(struct ethhdr) -
126 sizeof(struct iphdr) -
127 sizeof(struct tcphdr),
132 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
134 * Use the reserved field to indicate magic values.
135 * these values will only be used internally by the driver,
136 * and won't make it to the fw (reserved will be 0).
137 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
138 * be the vif's ip address. in case there is not a single
139 * ip address (0, or more than 1), this attribute will
141 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
142 * the LSB bytes of the vif's mac address
145 BC_FILTER_MAGIC_NONE = 0,
150 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
154 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
157 /* frame type - arp, hw type - ethernet */
159 BCAST_FILTER_OFFSET_PAYLOAD_START,
160 .offset = sizeof(rfc1042_header),
161 .val = cpu_to_be32(0x08060001),
162 .mask = cpu_to_be32(0xffffffff),
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header) + 2 +
169 sizeof(struct arphdr) +
170 ETH_ALEN + sizeof(__be32) +
172 .mask = cpu_to_be32(0xffffffff),
173 /* mark it as special field */
174 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
179 /* dhcp offer bcast */
181 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
184 /* udp dest port - 68 (bootp client)*/
185 .offset_type = BCAST_FILTER_OFFSET_IP_END,
186 .offset = offsetof(struct udphdr, dest),
187 .val = cpu_to_be32(0x00440000),
188 .mask = cpu_to_be32(0xffff0000),
191 /* dhcp - lsb bytes of client hw address */
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .mask = cpu_to_be32(0xffffffff),
195 /* mark it as special field */
196 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
200 /* last filter must be empty */
205 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
207 if (!mvm->trans->cfg->d0i3)
210 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
211 WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap));
212 iwl_trans_ref(mvm->trans);
215 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
217 if (!mvm->trans->cfg->d0i3)
220 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
221 WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap));
222 iwl_trans_unref(mvm->trans);
226 iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref)
230 if (!mvm->trans->cfg->d0i3)
233 for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) {
237 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i);
238 clear_bit(i, mvm->ref_bitmap);
239 iwl_trans_unref(mvm->trans);
243 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
247 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
248 for (i = 0; i < NUM_PHY_CTX; i++) {
249 mvm->phy_ctxts[i].id = i;
250 mvm->phy_ctxts[i].ref = 0;
254 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
256 /* we create the 802.11 header and SSID element */
257 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
258 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
259 return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
262 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
264 struct ieee80211_hw *hw = mvm->hw;
267 /* Tell mac80211 our characteristics */
268 hw->flags = IEEE80211_HW_SIGNAL_DBM |
269 IEEE80211_HW_SPECTRUM_MGMT |
270 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
271 IEEE80211_HW_QUEUE_CONTROL |
272 IEEE80211_HW_WANT_MONITOR_VIF |
273 IEEE80211_HW_SUPPORTS_PS |
274 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
275 IEEE80211_HW_AMPDU_AGGREGATION |
276 IEEE80211_HW_TIMING_BEACON_ONLY |
277 IEEE80211_HW_CONNECTION_MONITOR |
278 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
279 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
281 hw->queues = mvm->first_agg_queue;
282 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
283 hw->rate_control_algorithm = "iwl-mvm-rs";
286 * Enable 11w if advertised by firmware and software crypto
287 * is not enabled (as the firmware will interpret some mgmt
288 * packets, so enabling it with software crypto isn't safe)
290 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
291 !iwlwifi_mod_params.sw_crypto)
292 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
294 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
295 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
296 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
297 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
300 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
301 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
302 hw->chanctx_data_size = sizeof(u16);
304 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
305 BIT(NL80211_IFTYPE_P2P_CLIENT) |
306 BIT(NL80211_IFTYPE_AP) |
307 BIT(NL80211_IFTYPE_P2P_GO) |
308 BIT(NL80211_IFTYPE_P2P_DEVICE);
310 /* IBSS has bugs in older versions */
311 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
312 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
314 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
315 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
316 REGULATORY_DISABLE_BEACON_HINTS;
318 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
319 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
321 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
322 hw->wiphy->n_iface_combinations =
323 ARRAY_SIZE(iwl_mvm_iface_combinations);
325 hw->wiphy->max_remain_on_channel_duration = 10000;
326 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
328 /* Extract MAC address */
329 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
330 hw->wiphy->addresses = mvm->addresses;
331 hw->wiphy->n_addresses = 1;
333 /* Extract additional MAC addresses if available */
334 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
335 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
337 for (i = 1; i < num_mac; i++) {
338 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
340 mvm->addresses[i].addr[5]++;
341 hw->wiphy->n_addresses++;
344 iwl_mvm_reset_phy_ctxts(mvm);
346 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
348 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
350 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
351 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
352 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
353 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
354 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
355 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
357 hw->wiphy->hw_version = mvm->trans->hw_id;
359 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
360 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
362 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
364 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
365 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
366 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
367 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
368 /* we create the 802.11 header and zero length SSID IE. */
369 hw->wiphy->max_sched_scan_ie_len =
370 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
373 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
374 NL80211_FEATURE_P2P_GO_OPPPS |
375 NL80211_FEATURE_LOW_PRIORITY_SCAN;
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 void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
424 struct ieee80211_tx_control *control,
427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
428 struct ieee80211_sta *sta = control->sta;
429 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
430 struct ieee80211_hdr *hdr = (void *)skb->data;
432 if (iwl_mvm_is_radio_killed(mvm)) {
433 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
437 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
438 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
441 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
442 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
443 ieee80211_is_mgmt(hdr->frame_control) &&
444 !ieee80211_is_deauth(hdr->frame_control) &&
445 !ieee80211_is_disassoc(hdr->frame_control) &&
446 !ieee80211_is_action(hdr->frame_control)))
450 if (iwl_mvm_tx_skb(mvm, skb, sta))
455 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
459 ieee80211_free_txskb(hw, skb);
462 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
463 struct ieee80211_vif *vif,
464 enum ieee80211_ampdu_mlme_action action,
465 struct ieee80211_sta *sta, u16 tid,
466 u16 *ssn, u8 buf_size)
468 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
471 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
472 sta->addr, tid, action);
474 if (!(mvm->nvm_data->sku_cap_11n_enable))
477 mutex_lock(&mvm->mutex);
480 case IEEE80211_AMPDU_RX_START:
481 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
485 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
487 case IEEE80211_AMPDU_RX_STOP:
488 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
490 case IEEE80211_AMPDU_TX_START:
491 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) {
495 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
497 case IEEE80211_AMPDU_TX_STOP_CONT:
498 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
500 case IEEE80211_AMPDU_TX_STOP_FLUSH:
501 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
502 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
504 case IEEE80211_AMPDU_TX_OPERATIONAL:
505 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
512 mutex_unlock(&mvm->mutex);
517 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
518 struct ieee80211_vif *vif)
520 struct iwl_mvm *mvm = data;
521 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
523 mvmvif->uploaded = false;
524 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
526 /* does this make sense at all? */
529 spin_lock_bh(&mvm->time_event_lock);
530 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
531 spin_unlock_bh(&mvm->time_event_lock);
533 mvmvif->phy_ctxt = NULL;
536 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
538 iwl_trans_stop_device(mvm->trans);
540 mvm->scan_status = IWL_MVM_SCAN_NONE;
542 /* just in case one was running */
543 ieee80211_remain_on_channel_expired(mvm->hw);
545 ieee80211_iterate_active_interfaces_atomic(
546 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
547 iwl_mvm_cleanup_iterator, mvm);
549 mvm->p2p_device_vif = NULL;
550 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
552 iwl_mvm_reset_phy_ctxts(mvm);
553 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
554 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
556 ieee80211_wake_queues(mvm->hw);
558 /* cleanup all stale references (scan, roc), but keep the
559 * ucode_down ref until reconfig is complete */
560 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
563 mvm->rx_ba_sessions = 0;
566 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
568 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
571 mutex_lock(&mvm->mutex);
573 /* Clean up some internal and mac80211 state on restart */
574 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
575 iwl_mvm_restart_cleanup(mvm);
577 ret = iwl_mvm_up(mvm);
578 mutex_unlock(&mvm->mutex);
583 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
585 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
588 mutex_lock(&mvm->mutex);
590 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
591 ret = iwl_mvm_update_quotas(mvm, NULL);
593 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
596 /* allow transport/FW low power modes */
597 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
599 mutex_unlock(&mvm->mutex);
602 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
604 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
606 flush_work(&mvm->d0i3_exit_work);
607 flush_work(&mvm->async_handlers_wk);
609 mutex_lock(&mvm->mutex);
611 /* disallow low power states when the FW is down */
612 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
614 /* async_handlers_wk is now blocked */
617 * The work item could be running or queued if the
618 * ROC time event stops just as we get here.
620 cancel_work_sync(&mvm->roc_done_wk);
622 iwl_trans_stop_device(mvm->trans);
624 iwl_mvm_async_handlers_purge(mvm);
625 /* async_handlers_list is empty and will stay empty: HW is stopped */
627 /* the fw is stopped, the aux sta is dead: clean up driver state */
628 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
630 mutex_unlock(&mvm->mutex);
633 * The worker might have been waiting for the mutex, let it run and
634 * discover that its list is now empty.
636 cancel_work_sync(&mvm->async_handlers_wk);
639 static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
640 struct ieee80211_vif *vif)
642 struct iwl_mvm *mvm = data;
644 iwl_mvm_power_update_mode(mvm, vif);
647 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
651 lockdep_assert_held(&mvm->mutex);
653 for (i = 0; i < NUM_PHY_CTX; i++)
654 if (!mvm->phy_ctxts[i].ref)
655 return &mvm->phy_ctxts[i];
657 IWL_ERR(mvm, "No available PHY context\n");
661 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
664 /* FW is in charge of regulatory enforcement */
665 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
666 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
667 .pwr_restriction = cpu_to_le16(tx_power),
670 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
671 sizeof(reduce_txpwr_cmd),
675 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
676 struct ieee80211_vif *vif)
678 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
679 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
683 * Not much to do here. The stack will not allow interface
684 * types or combinations that we didn't advertise, so we
685 * don't really have to check the types.
688 mutex_lock(&mvm->mutex);
690 /* Allocate resources for the MAC context, and add it to the fw */
691 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
695 /* Counting number of interfaces is needed for legacy PM */
696 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
700 * The AP binding flow can be done only after the beacon
701 * template is configured (which happens only in the mac80211
702 * start_ap() flow), and adding the broadcast station can happen
703 * only after the binding.
704 * In addition, since modifying the MAC before adding a bcast
705 * station is not allowed by the FW, delay the adding of MAC context to
706 * the point where we can also add the bcast station.
707 * In short: there's not much we can do at this point, other than
708 * allocating resources :)
710 if (vif->type == NL80211_IFTYPE_AP ||
711 vif->type == NL80211_IFTYPE_ADHOC) {
712 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
713 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
716 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
720 iwl_mvm_vif_dbgfs_register(mvm, vif);
724 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
728 iwl_mvm_power_disable(mvm, vif);
730 /* beacon filtering */
731 ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
735 if (!mvm->bf_allowed_vif &&
736 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
737 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
738 mvm->bf_allowed_vif = mvmvif;
739 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
740 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
744 * P2P_DEVICE interface does not have a channel context assigned to it,
745 * so a dedicated PHY context is allocated to it and the corresponding
746 * MAC context is bound to it at this stage.
748 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
750 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
751 if (!mvmvif->phy_ctxt) {
756 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
757 ret = iwl_mvm_binding_add_vif(mvm, vif);
761 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
765 /* Save a pointer to p2p device vif, so it can later be used to
766 * update the p2p device MAC when a GO is started/stopped */
767 mvm->p2p_device_vif = vif;
770 iwl_mvm_vif_dbgfs_register(mvm, vif);
774 iwl_mvm_binding_remove_vif(mvm, vif);
776 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
778 if (mvm->bf_allowed_vif == mvmvif) {
779 mvm->bf_allowed_vif = NULL;
780 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
781 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
784 mvmvif->phy_ctxt = NULL;
785 iwl_mvm_mac_ctxt_remove(mvm, vif);
787 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
790 /* TODO: remove this when legacy PM will be discarded */
791 ieee80211_iterate_active_interfaces(
792 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
793 iwl_mvm_power_update_iterator, mvm);
795 iwl_mvm_mac_ctxt_release(mvm, vif);
797 mutex_unlock(&mvm->mutex);
802 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
803 struct ieee80211_vif *vif)
807 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
808 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
809 tfd_msk |= BIT(vif->hw_queue[ac]);
811 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
812 tfd_msk |= BIT(vif->cab_queue);
815 mutex_lock(&mvm->mutex);
816 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
817 mutex_unlock(&mvm->mutex);
820 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
822 * Flush the ROC worker which will flush the OFFCHANNEL queue.
823 * We assume here that all the packets sent to the OFFCHANNEL
824 * queue are sent in ROC session.
826 flush_work(&mvm->roc_done_wk);
829 * By now, all the AC queues are empty. The AGG queues are
830 * empty too. We already got all the Tx responses for all the
831 * packets in the queues. The drain work can have been
832 * triggered. Flush it.
834 flush_work(&mvm->sta_drained_wk);
838 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
839 struct ieee80211_vif *vif)
841 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
842 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
844 iwl_mvm_prepare_mac_removal(mvm, vif);
846 mutex_lock(&mvm->mutex);
848 if (mvm->bf_allowed_vif == mvmvif) {
849 mvm->bf_allowed_vif = NULL;
850 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
851 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
854 iwl_mvm_vif_dbgfs_clean(mvm, vif);
857 * For AP/GO interface, the tear down of the resources allocated to the
858 * interface is be handled as part of the stop_ap flow.
860 if (vif->type == NL80211_IFTYPE_AP ||
861 vif->type == NL80211_IFTYPE_ADHOC) {
862 #ifdef CONFIG_NL80211_TESTMODE
863 if (vif == mvm->noa_vif) {
865 mvm->noa_duration = 0;
868 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
872 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
873 mvm->p2p_device_vif = NULL;
874 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
875 iwl_mvm_binding_remove_vif(mvm, vif);
876 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
877 mvmvif->phy_ctxt = NULL;
880 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
883 /* TODO: remove this when legacy PM will be discarded */
884 ieee80211_iterate_active_interfaces(
885 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
886 iwl_mvm_power_update_iterator, mvm);
888 iwl_mvm_mac_ctxt_remove(mvm, vif);
891 iwl_mvm_mac_ctxt_release(mvm, vif);
892 mutex_unlock(&mvm->mutex);
895 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
900 struct iwl_mvm_mc_iter_data {
905 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
906 struct ieee80211_vif *vif)
908 struct iwl_mvm_mc_iter_data *data = _data;
909 struct iwl_mvm *mvm = data->mvm;
910 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
913 /* if we don't have free ports, mcast frames will be dropped */
914 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
917 if (vif->type != NL80211_IFTYPE_STATION ||
918 !vif->bss_conf.assoc)
921 cmd->port_id = data->port_id++;
922 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
923 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
925 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
927 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
930 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
932 struct iwl_mvm_mc_iter_data iter_data = {
936 lockdep_assert_held(&mvm->mutex);
938 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
941 ieee80211_iterate_active_interfaces(
942 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
943 iwl_mvm_mc_iface_iterator, &iter_data);
946 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
947 struct netdev_hw_addr_list *mc_list)
949 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
950 struct iwl_mcast_filter_cmd *cmd;
951 struct netdev_hw_addr *addr;
952 int addr_count = netdev_hw_addr_list_count(mc_list);
953 bool pass_all = false;
956 if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
961 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
962 cmd = kzalloc(len, GFP_ATOMIC);
968 return (u64)(unsigned long)cmd;
971 netdev_hw_addr_list_for_each(addr, mc_list) {
972 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
973 cmd->count, addr->addr);
974 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
975 addr->addr, ETH_ALEN);
979 return (u64)(unsigned long)cmd;
982 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
983 unsigned int changed_flags,
984 unsigned int *total_flags,
987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
988 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
990 mutex_lock(&mvm->mutex);
992 /* replace previous configuration */
993 kfree(mvm->mcast_filter_cmd);
994 mvm->mcast_filter_cmd = cmd;
999 iwl_mvm_recalc_multicast(mvm);
1001 mutex_unlock(&mvm->mutex);
1005 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1006 struct iwl_bcast_iter_data {
1007 struct iwl_mvm *mvm;
1008 struct iwl_bcast_filter_cmd *cmd;
1013 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1014 const struct iwl_fw_bcast_filter *in_filter,
1015 struct iwl_fw_bcast_filter *out_filter)
1017 struct iwl_fw_bcast_filter_attr *attr;
1020 memcpy(out_filter, in_filter, sizeof(*out_filter));
1022 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1023 attr = &out_filter->attrs[i];
1028 switch (attr->reserved1) {
1029 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1030 if (vif->bss_conf.arp_addr_cnt != 1) {
1035 attr->val = vif->bss_conf.arp_addr_list[0];
1037 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1038 attr->val = *(__be32 *)&vif->addr[2];
1043 attr->reserved1 = 0;
1044 out_filter->num_attrs++;
1048 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1049 struct ieee80211_vif *vif)
1051 struct iwl_bcast_iter_data *data = _data;
1052 struct iwl_mvm *mvm = data->mvm;
1053 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1054 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1055 struct iwl_fw_bcast_mac *bcast_mac;
1058 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1061 bcast_mac = &cmd->macs[mvmvif->id];
1063 /* enable filtering only for associated stations */
1064 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1067 bcast_mac->default_discard = 1;
1069 /* copy all configured filters */
1070 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1072 * Make sure we don't exceed our filters limit.
1073 * if there is still a valid filter to be configured,
1074 * be on the safe side and just allow bcast for this mac.
1076 if (WARN_ON_ONCE(data->current_filter >=
1077 ARRAY_SIZE(cmd->filters))) {
1078 bcast_mac->default_discard = 0;
1079 bcast_mac->attached_filters = 0;
1083 iwl_mvm_set_bcast_filter(vif,
1084 &mvm->bcast_filters[i],
1085 &cmd->filters[data->current_filter]);
1087 /* skip current filter if it contains no attributes */
1088 if (!cmd->filters[data->current_filter].num_attrs)
1091 /* attach the filter to current mac */
1092 bcast_mac->attached_filters |=
1093 cpu_to_le16(BIT(data->current_filter));
1095 data->current_filter++;
1099 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1100 struct iwl_bcast_filter_cmd *cmd)
1102 struct iwl_bcast_iter_data iter_data = {
1107 memset(cmd, 0, sizeof(*cmd));
1108 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1109 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1111 #ifdef CONFIG_IWLWIFI_DEBUGFS
1112 /* use debugfs filters/macs if override is configured */
1113 if (mvm->dbgfs_bcast_filtering.override) {
1114 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1115 sizeof(cmd->filters));
1116 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1122 /* if no filters are configured, do nothing */
1123 if (!mvm->bcast_filters)
1126 /* configure and attach these filters for each associated sta vif */
1127 ieee80211_iterate_active_interfaces(
1128 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1129 iwl_mvm_bcast_filter_iterator, &iter_data);
1133 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1134 struct ieee80211_vif *vif)
1136 struct iwl_bcast_filter_cmd cmd;
1138 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1141 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1144 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
1148 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1149 struct ieee80211_vif *vif)
1155 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1156 struct ieee80211_vif *vif,
1157 struct ieee80211_bss_conf *bss_conf,
1160 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1164 * Re-calculate the tsf id, as the master-slave relations depend on the
1165 * beacon interval, which was not known when the station interface was
1168 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1169 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1171 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1173 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1175 if (changes & BSS_CHANGED_ASSOC) {
1176 if (bss_conf->assoc) {
1177 /* add quota for this interface */
1178 ret = iwl_mvm_update_quotas(mvm, vif);
1180 IWL_ERR(mvm, "failed to update quotas\n");
1184 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1187 * If we're restarting then the firmware will
1188 * obviously have lost synchronisation with
1189 * the AP. It will attempt to synchronise by
1190 * itself, but we can make it more reliable by
1191 * scheduling a session protection time event.
1193 * The firmware needs to receive a beacon to
1194 * catch up with synchronisation, use 110% of
1195 * the beacon interval.
1197 * Set a large maximum delay to allow for more
1198 * than a single interface.
1200 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1201 iwl_mvm_protect_session(mvm, vif, dur, dur,
1205 iwl_mvm_sf_update(mvm, vif, false);
1206 iwl_mvm_power_vif_assoc(mvm, vif);
1208 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1209 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1211 * If update fails - SF might be running in associated
1212 * mode while disassociated - which is forbidden.
1214 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1215 "Failed to update SF upon disassociation\n");
1217 /* remove AP station now that the MAC is unassoc */
1218 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1220 IWL_ERR(mvm, "failed to remove AP station\n");
1222 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1223 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1224 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1225 /* remove quota for this interface */
1226 ret = iwl_mvm_update_quotas(mvm, NULL);
1228 IWL_ERR(mvm, "failed to update quotas\n");
1231 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1234 iwl_mvm_recalc_multicast(mvm);
1235 iwl_mvm_configure_bcast_filter(mvm, vif);
1237 /* reset rssi values */
1238 mvmvif->bf_data.ave_beacon_signal = 0;
1240 if (!(mvm->fw->ucode_capa.flags &
1241 IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
1242 /* Workaround for FW bug, otherwise FW disables device
1243 * power save upon disassociation
1245 ret = iwl_mvm_power_update_mode(mvm, vif);
1247 IWL_ERR(mvm, "failed to update power mode\n");
1249 iwl_mvm_bt_coex_vif_change(mvm);
1250 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1251 IEEE80211_SMPS_AUTOMATIC);
1252 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1254 * We received a beacon _after_ association so
1255 * remove the session protection.
1257 iwl_mvm_remove_time_event(mvm, mvmvif,
1258 &mvmvif->time_event_data);
1259 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1261 ret = iwl_mvm_power_update_mode(mvm, vif);
1263 IWL_ERR(mvm, "failed to update power mode\n");
1265 if (changes & BSS_CHANGED_TXPOWER) {
1266 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1268 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1271 if (changes & BSS_CHANGED_CQM) {
1272 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1273 /* reset cqm events tracking */
1274 mvmvif->bf_data.last_cqm_event = 0;
1275 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1277 IWL_ERR(mvm, "failed to update CQM thresholds\n");
1280 if (changes & BSS_CHANGED_ARP_FILTER) {
1281 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1282 iwl_mvm_configure_bcast_filter(mvm, vif);
1286 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1287 struct ieee80211_vif *vif)
1289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1290 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1293 mutex_lock(&mvm->mutex);
1295 /* Send the beacon template */
1296 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1301 * Re-calculate the tsf id, as the master-slave relations depend on the
1302 * beacon interval, which was not known when the AP interface was added.
1304 if (vif->type == NL80211_IFTYPE_AP)
1305 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1307 /* Add the mac context */
1308 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1312 /* Perform the binding */
1313 ret = iwl_mvm_binding_add_vif(mvm, vif);
1317 mvmvif->ap_ibss_active = true;
1319 /* Send the bcast station. At this stage the TBTT and DTIM time events
1320 * are added and applied to the scheduler */
1321 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1325 /* must be set before quota calculations */
1326 mvmvif->ap_ibss_active = true;
1328 /* power updated needs to be done before quotas */
1329 mvm->bound_vif_cnt++;
1330 iwl_mvm_power_update_binding(mvm, vif, true);
1332 ret = iwl_mvm_update_quotas(mvm, vif);
1334 goto out_quota_failed;
1336 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1337 if (vif->p2p && mvm->p2p_device_vif)
1338 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1340 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1342 iwl_mvm_bt_coex_vif_change(mvm);
1344 mutex_unlock(&mvm->mutex);
1348 mvm->bound_vif_cnt--;
1349 iwl_mvm_power_update_binding(mvm, vif, false);
1350 mvmvif->ap_ibss_active = false;
1351 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1353 iwl_mvm_binding_remove_vif(mvm, vif);
1355 iwl_mvm_mac_ctxt_remove(mvm, vif);
1357 mutex_unlock(&mvm->mutex);
1361 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1362 struct ieee80211_vif *vif)
1364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1365 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1367 iwl_mvm_prepare_mac_removal(mvm, vif);
1369 mutex_lock(&mvm->mutex);
1371 mvmvif->ap_ibss_active = false;
1373 iwl_mvm_bt_coex_vif_change(mvm);
1375 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1377 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1378 if (vif->p2p && mvm->p2p_device_vif)
1379 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1381 iwl_mvm_update_quotas(mvm, NULL);
1382 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1383 iwl_mvm_binding_remove_vif(mvm, vif);
1385 mvm->bound_vif_cnt--;
1386 iwl_mvm_power_update_binding(mvm, vif, false);
1388 iwl_mvm_mac_ctxt_remove(mvm, vif);
1390 mutex_unlock(&mvm->mutex);
1394 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1395 struct ieee80211_vif *vif,
1396 struct ieee80211_bss_conf *bss_conf,
1399 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1400 enum ieee80211_bss_change ht_change = BSS_CHANGED_ERP_CTS_PROT |
1402 BSS_CHANGED_BANDWIDTH;
1405 /* Changes will be applied when the AP/IBSS is started */
1406 if (!mvmvif->ap_ibss_active)
1409 if (changes & ht_change) {
1410 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1412 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1415 /* Need to send a new beacon template to the FW */
1416 if (changes & BSS_CHANGED_BEACON) {
1417 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1418 IWL_WARN(mvm, "Failed updating beacon data\n");
1422 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1423 struct ieee80211_vif *vif,
1424 struct ieee80211_bss_conf *bss_conf,
1427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1429 mutex_lock(&mvm->mutex);
1431 switch (vif->type) {
1432 case NL80211_IFTYPE_STATION:
1433 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1435 case NL80211_IFTYPE_AP:
1436 case NL80211_IFTYPE_ADHOC:
1437 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1440 /* shouldn't happen */
1444 mutex_unlock(&mvm->mutex);
1447 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1448 struct ieee80211_vif *vif,
1449 struct cfg80211_scan_request *req)
1451 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1454 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1457 mutex_lock(&mvm->mutex);
1459 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1464 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1466 ret = iwl_mvm_scan_request(mvm, vif, req);
1468 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1470 mutex_unlock(&mvm->mutex);
1475 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1476 struct ieee80211_vif *vif)
1478 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1480 mutex_lock(&mvm->mutex);
1482 iwl_mvm_cancel_scan(mvm);
1484 mutex_unlock(&mvm->mutex);
1488 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1489 struct ieee80211_sta *sta, u16 tids,
1491 enum ieee80211_frame_release_type reason,
1494 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1496 /* Called when we need to transmit (a) frame(s) from mac80211 */
1498 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1499 tids, more_data, false);
1503 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1504 struct ieee80211_sta *sta, u16 tids,
1506 enum ieee80211_frame_release_type reason,
1509 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1511 /* Called when we need to transmit (a) frame(s) from agg queue */
1513 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1514 tids, more_data, true);
1517 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1518 struct ieee80211_vif *vif,
1519 enum sta_notify_cmd cmd,
1520 struct ieee80211_sta *sta)
1522 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1523 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1527 case STA_NOTIFY_SLEEP:
1528 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1529 ieee80211_sta_block_awake(hw, sta, true);
1530 spin_lock_bh(&mvmsta->lock);
1531 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1532 struct iwl_mvm_tid_data *tid_data;
1534 tid_data = &mvmsta->tid_data[tid];
1535 if (tid_data->state != IWL_AGG_ON &&
1536 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1538 if (iwl_mvm_tid_queued(tid_data) == 0)
1540 ieee80211_sta_set_buffered(sta, tid, true);
1542 spin_unlock_bh(&mvmsta->lock);
1544 * The fw updates the STA to be asleep. Tx packets on the Tx
1545 * queues to this station will not be transmitted. The fw will
1546 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1549 case STA_NOTIFY_AWAKE:
1550 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1552 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1559 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1560 struct ieee80211_vif *vif,
1561 struct ieee80211_sta *sta)
1563 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1564 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1567 * This is called before mac80211 does RCU synchronisation,
1568 * so here we already invalidate our internal RCU-protected
1569 * station pointer. The rest of the code will thus no longer
1570 * be able to find the station this way, and we don't rely
1571 * on further RCU synchronisation after the sta_state()
1572 * callback deleted the station.
1574 mutex_lock(&mvm->mutex);
1575 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1576 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1578 mutex_unlock(&mvm->mutex);
1581 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1582 struct ieee80211_vif *vif,
1583 struct ieee80211_sta *sta,
1584 enum ieee80211_sta_state old_state,
1585 enum ieee80211_sta_state new_state)
1587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1588 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1591 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1592 sta->addr, old_state, new_state);
1594 /* this would be a mac80211 bug ... but don't crash */
1595 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1598 /* if a STA is being removed, reuse its ID */
1599 flush_work(&mvm->sta_drained_wk);
1601 mutex_lock(&mvm->mutex);
1602 if (old_state == IEEE80211_STA_NOTEXIST &&
1603 new_state == IEEE80211_STA_NONE) {
1605 * Firmware bug - it'll crash if the beacon interval is less
1606 * than 16. We can't avoid connecting at all, so refuse the
1607 * station state change, this will cause mac80211 to abandon
1608 * attempts to connect to this AP, and eventually wpa_s will
1609 * blacklist the AP...
1611 if (vif->type == NL80211_IFTYPE_STATION &&
1612 vif->bss_conf.beacon_int < 16) {
1614 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1615 sta->addr, vif->bss_conf.beacon_int);
1619 ret = iwl_mvm_add_sta(mvm, vif, sta);
1620 } else if (old_state == IEEE80211_STA_NONE &&
1621 new_state == IEEE80211_STA_AUTH) {
1623 } else if (old_state == IEEE80211_STA_AUTH &&
1624 new_state == IEEE80211_STA_ASSOC) {
1625 ret = iwl_mvm_update_sta(mvm, vif, sta);
1627 iwl_mvm_rs_rate_init(mvm, sta,
1628 mvmvif->phy_ctxt->channel->band,
1630 } else if (old_state == IEEE80211_STA_ASSOC &&
1631 new_state == IEEE80211_STA_AUTHORIZED) {
1632 /* enable beacon filtering */
1633 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1635 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1636 new_state == IEEE80211_STA_ASSOC) {
1637 /* disable beacon filtering */
1638 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1640 } else if (old_state == IEEE80211_STA_ASSOC &&
1641 new_state == IEEE80211_STA_AUTH) {
1643 } else if (old_state == IEEE80211_STA_AUTH &&
1644 new_state == IEEE80211_STA_NONE) {
1646 } else if (old_state == IEEE80211_STA_NONE &&
1647 new_state == IEEE80211_STA_NOTEXIST) {
1648 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1653 mutex_unlock(&mvm->mutex);
1658 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1660 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1662 mvm->rts_threshold = value;
1667 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1668 struct ieee80211_vif *vif,
1669 struct ieee80211_sta *sta, u32 changed)
1671 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1673 if (vif->type == NL80211_IFTYPE_STATION &&
1674 changed & IEEE80211_RC_NSS_CHANGED)
1675 iwl_mvm_sf_update(mvm, vif, false);
1678 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1679 struct ieee80211_vif *vif, u16 ac,
1680 const struct ieee80211_tx_queue_params *params)
1682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1683 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1685 mvmvif->queue_params[ac] = *params;
1688 * No need to update right away, we'll get BSS_CHANGED_QOS
1689 * The exception is P2P_DEVICE interface which needs immediate update.
1691 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1694 mutex_lock(&mvm->mutex);
1695 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1696 mutex_unlock(&mvm->mutex);
1702 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1703 struct ieee80211_vif *vif)
1705 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1706 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1707 200 + vif->bss_conf.beacon_int);
1708 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1709 100 + vif->bss_conf.beacon_int);
1711 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1714 mutex_lock(&mvm->mutex);
1715 /* Try really hard to protect the session and hear a beacon */
1716 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1717 mutex_unlock(&mvm->mutex);
1720 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1721 struct ieee80211_vif *vif,
1722 struct cfg80211_sched_scan_request *req,
1723 struct ieee80211_sched_scan_ies *ies)
1725 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1728 mutex_lock(&mvm->mutex);
1730 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1732 "SCHED SCAN request during internal scan - abort\n");
1737 mvm->scan_status = IWL_MVM_SCAN_SCHED;
1739 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1743 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1747 ret = iwl_mvm_sched_scan_start(mvm, req);
1751 mvm->scan_status = IWL_MVM_SCAN_NONE;
1753 mutex_unlock(&mvm->mutex);
1757 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1758 struct ieee80211_vif *vif)
1760 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1762 mutex_lock(&mvm->mutex);
1763 iwl_mvm_sched_scan_stop(mvm);
1764 mutex_unlock(&mvm->mutex);
1767 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1768 enum set_key_cmd cmd,
1769 struct ieee80211_vif *vif,
1770 struct ieee80211_sta *sta,
1771 struct ieee80211_key_conf *key)
1773 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1776 if (iwlwifi_mod_params.sw_crypto) {
1777 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1781 switch (key->cipher) {
1782 case WLAN_CIPHER_SUITE_TKIP:
1783 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1785 case WLAN_CIPHER_SUITE_CCMP:
1786 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1788 case WLAN_CIPHER_SUITE_AES_CMAC:
1789 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1791 case WLAN_CIPHER_SUITE_WEP40:
1792 case WLAN_CIPHER_SUITE_WEP104:
1794 * Support for TX only, at least for now, so accept
1795 * the key and do nothing else. Then mac80211 will
1796 * pass it for TX but we don't have to use it for RX.
1800 /* currently FW supports only one optional cipher scheme */
1801 if (hw->n_cipher_schemes &&
1802 hw->cipher_schemes->cipher == key->cipher)
1803 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1808 mutex_lock(&mvm->mutex);
1812 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1813 vif->type == NL80211_IFTYPE_AP) && !sta) {
1815 * GTK on AP interface is a TX-only key, return 0;
1816 * on IBSS they're per-station and because we're lazy
1817 * we don't support them for RX, so do the same.
1820 key->hw_key_idx = STA_KEY_IDX_INVALID;
1824 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1825 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1827 IWL_WARN(mvm, "set key failed\n");
1829 * can't add key for RX, but we don't need it
1830 * in the device for TX so still return 0
1832 key->hw_key_idx = STA_KEY_IDX_INVALID;
1838 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1843 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1844 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1850 mutex_unlock(&mvm->mutex);
1854 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1855 struct ieee80211_vif *vif,
1856 struct ieee80211_key_conf *keyconf,
1857 struct ieee80211_sta *sta,
1858 u32 iv32, u16 *phase1key)
1860 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1862 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1865 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1869 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1870 struct ieee80211_vif *vif,
1871 struct ieee80211_channel *channel,
1873 enum ieee80211_roc_type type)
1875 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1876 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1877 struct cfg80211_chan_def chandef;
1878 struct iwl_mvm_phy_ctxt *phy_ctxt;
1881 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1884 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1885 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1889 mutex_lock(&mvm->mutex);
1891 for (i = 0; i < NUM_PHY_CTX; i++) {
1892 phy_ctxt = &mvm->phy_ctxts[i];
1893 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1896 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1898 * Unbind the P2P_DEVICE from the current PHY context,
1899 * and if the PHY context is not used remove it.
1901 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1902 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1905 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1907 /* Bind the P2P_DEVICE to the current PHY Context */
1908 mvmvif->phy_ctxt = phy_ctxt;
1910 ret = iwl_mvm_binding_add_vif(mvm, vif);
1911 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1914 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1915 goto schedule_time_event;
1919 /* Need to update the PHY context only if the ROC channel changed */
1920 if (channel == mvmvif->phy_ctxt->channel)
1921 goto schedule_time_event;
1923 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1926 * Change the PHY context configuration as it is currently referenced
1927 * only by the P2P Device MAC
1929 if (mvmvif->phy_ctxt->ref == 1) {
1930 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1936 * The PHY context is shared with other MACs. Need to remove the
1937 * P2P Device from the binding, allocate an new PHY context and
1938 * create a new binding
1940 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1946 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1949 IWL_ERR(mvm, "Failed to change PHY context\n");
1953 /* Unbind the P2P_DEVICE from the current PHY context */
1954 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1955 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1958 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1960 /* Bind the P2P_DEVICE to the new allocated PHY context */
1961 mvmvif->phy_ctxt = phy_ctxt;
1963 ret = iwl_mvm_binding_add_vif(mvm, vif);
1964 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1967 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1970 schedule_time_event:
1971 /* Schedule the time events */
1972 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
1975 mutex_unlock(&mvm->mutex);
1976 IWL_DEBUG_MAC80211(mvm, "leave\n");
1980 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1982 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1984 IWL_DEBUG_MAC80211(mvm, "enter\n");
1986 mutex_lock(&mvm->mutex);
1987 iwl_mvm_stop_p2p_roc(mvm);
1988 mutex_unlock(&mvm->mutex);
1990 IWL_DEBUG_MAC80211(mvm, "leave\n");
1994 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1995 struct ieee80211_chanctx_conf *ctx)
1997 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1998 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1999 struct iwl_mvm_phy_ctxt *phy_ctxt;
2002 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2004 mutex_lock(&mvm->mutex);
2005 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2011 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2012 ctx->rx_chains_static,
2013 ctx->rx_chains_dynamic);
2015 IWL_ERR(mvm, "Failed to add PHY context\n");
2019 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2020 *phy_ctxt_id = phy_ctxt->id;
2022 mutex_unlock(&mvm->mutex);
2026 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2027 struct ieee80211_chanctx_conf *ctx)
2029 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2030 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2031 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2033 mutex_lock(&mvm->mutex);
2034 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2035 mutex_unlock(&mvm->mutex);
2038 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2039 struct ieee80211_chanctx_conf *ctx,
2042 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2043 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2044 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2046 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2047 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2048 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2049 IEEE80211_CHANCTX_CHANGE_RADAR |
2050 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2051 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2052 phy_ctxt->ref, changed))
2055 mutex_lock(&mvm->mutex);
2056 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2057 ctx->rx_chains_static,
2058 ctx->rx_chains_dynamic);
2059 iwl_mvm_bt_coex_vif_change(mvm);
2060 mutex_unlock(&mvm->mutex);
2063 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2064 struct ieee80211_vif *vif,
2065 struct ieee80211_chanctx_conf *ctx)
2067 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2068 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2069 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2070 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2073 mutex_lock(&mvm->mutex);
2075 mvmvif->phy_ctxt = phy_ctxt;
2077 switch (vif->type) {
2078 case NL80211_IFTYPE_AP:
2079 case NL80211_IFTYPE_ADHOC:
2081 * The AP binding flow is handled as part of the start_ap flow
2082 * (in bss_info_changed), similarly for IBSS.
2086 case NL80211_IFTYPE_STATION:
2087 case NL80211_IFTYPE_MONITOR:
2094 ret = iwl_mvm_binding_add_vif(mvm, vif);
2099 * Power state must be updated before quotas,
2100 * otherwise fw will complain.
2102 mvm->bound_vif_cnt++;
2103 iwl_mvm_power_update_binding(mvm, vif, true);
2105 /* Setting the quota at this stage is only required for monitor
2106 * interfaces. For the other types, the bss_info changed flow
2107 * will handle quota settings.
2109 if (vif->type == NL80211_IFTYPE_MONITOR) {
2110 mvmvif->monitor_active = true;
2111 ret = iwl_mvm_update_quotas(mvm, vif);
2113 goto out_remove_binding;
2119 iwl_mvm_binding_remove_vif(mvm, vif);
2120 mvm->bound_vif_cnt--;
2121 iwl_mvm_power_update_binding(mvm, vif, false);
2123 mutex_unlock(&mvm->mutex);
2125 mvmvif->phy_ctxt = NULL;
2129 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2130 struct ieee80211_vif *vif,
2131 struct ieee80211_chanctx_conf *ctx)
2133 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2134 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2136 mutex_lock(&mvm->mutex);
2138 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2140 switch (vif->type) {
2141 case NL80211_IFTYPE_AP:
2142 case NL80211_IFTYPE_ADHOC:
2144 case NL80211_IFTYPE_MONITOR:
2145 mvmvif->monitor_active = false;
2146 iwl_mvm_update_quotas(mvm, NULL);
2152 iwl_mvm_binding_remove_vif(mvm, vif);
2153 mvm->bound_vif_cnt--;
2154 iwl_mvm_power_update_binding(mvm, vif, false);
2157 mvmvif->phy_ctxt = NULL;
2158 mutex_unlock(&mvm->mutex);
2161 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2162 struct ieee80211_sta *sta,
2165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2166 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2168 if (!mvm_sta || !mvm_sta->vif) {
2169 IWL_ERR(mvm, "Station is not associated to a vif\n");
2173 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2176 #ifdef CONFIG_NL80211_TESTMODE
2177 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2178 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2179 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2180 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2183 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2184 struct ieee80211_vif *vif,
2185 void *data, int len)
2187 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2191 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2195 if (!tb[IWL_MVM_TM_ATTR_CMD])
2198 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2199 case IWL_MVM_TM_CMD_SET_NOA:
2200 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2201 !vif->bss_conf.enable_beacon ||
2202 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2205 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2206 if (noa_duration >= vif->bss_conf.beacon_int)
2209 mvm->noa_duration = noa_duration;
2212 return iwl_mvm_update_quotas(mvm, NULL);
2213 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2214 /* must be associated client vif - ignore authorized */
2215 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2216 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2217 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2220 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2221 return iwl_mvm_enable_beacon_filter(mvm, vif,
2223 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2229 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2230 struct ieee80211_vif *vif,
2231 void *data, int len)
2233 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2236 mutex_lock(&mvm->mutex);
2237 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2238 mutex_unlock(&mvm->mutex);
2244 struct ieee80211_ops iwl_mvm_hw_ops = {
2245 .tx = iwl_mvm_mac_tx,
2246 .ampdu_action = iwl_mvm_mac_ampdu_action,
2247 .start = iwl_mvm_mac_start,
2248 .restart_complete = iwl_mvm_mac_restart_complete,
2249 .stop = iwl_mvm_mac_stop,
2250 .add_interface = iwl_mvm_mac_add_interface,
2251 .remove_interface = iwl_mvm_mac_remove_interface,
2252 .config = iwl_mvm_mac_config,
2253 .prepare_multicast = iwl_mvm_prepare_multicast,
2254 .configure_filter = iwl_mvm_configure_filter,
2255 .bss_info_changed = iwl_mvm_bss_info_changed,
2256 .hw_scan = iwl_mvm_mac_hw_scan,
2257 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2258 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2259 .sta_state = iwl_mvm_mac_sta_state,
2260 .sta_notify = iwl_mvm_mac_sta_notify,
2261 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2262 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2263 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2264 .sta_rc_update = iwl_mvm_sta_rc_update,
2265 .conf_tx = iwl_mvm_mac_conf_tx,
2266 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2267 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2268 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2269 .set_key = iwl_mvm_mac_set_key,
2270 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2271 .remain_on_channel = iwl_mvm_roc,
2272 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2273 .add_chanctx = iwl_mvm_add_chanctx,
2274 .remove_chanctx = iwl_mvm_remove_chanctx,
2275 .change_chanctx = iwl_mvm_change_chanctx,
2276 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2277 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2279 .start_ap = iwl_mvm_start_ap_ibss,
2280 .stop_ap = iwl_mvm_stop_ap_ibss,
2281 .join_ibss = iwl_mvm_start_ap_ibss,
2282 .leave_ibss = iwl_mvm_stop_ap_ibss,
2284 .set_tim = iwl_mvm_set_tim,
2286 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2288 #ifdef CONFIG_PM_SLEEP
2290 .suspend = iwl_mvm_suspend,
2291 .resume = iwl_mvm_resume,
2292 .set_wakeup = iwl_mvm_set_wakeup,
2293 .set_rekey_data = iwl_mvm_set_rekey_data,
2294 #if IS_ENABLED(CONFIG_IPV6)
2295 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2297 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,