1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/kernel.h>
66 #include <linux/slab.h>
67 #include <linux/skbuff.h>
68 #include <linux/netdevice.h>
69 #include <linux/etherdevice.h>
71 #include <linux/if_arp.h>
72 #include <linux/devcoredump.h>
73 #include <net/mac80211.h>
74 #include <net/ieee80211_radiotap.h>
77 #include "iwl-op-mode.h"
81 #include "time-event.h"
82 #include "iwl-eeprom-parse.h"
83 #include "fw-api-scan.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
90 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
93 .types = BIT(NL80211_IFTYPE_STATION),
97 .types = BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT) |
99 BIT(NL80211_IFTYPE_P2P_GO),
103 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
107 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 .num_different_channels = 2,
111 .limits = iwl_mvm_limits,
112 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
116 #ifdef CONFIG_PM_SLEEP
117 static const struct nl80211_wowlan_tcp_data_token_feature
118 iwl_mvm_wowlan_tcp_token_feature = {
121 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
124 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
125 .tok = &iwl_mvm_wowlan_tcp_token_feature,
126 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
127 sizeof(struct ethhdr) -
128 sizeof(struct iphdr) -
129 sizeof(struct tcphdr),
130 .data_interval_max = 65535, /* __le16 in API */
131 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
132 sizeof(struct ethhdr) -
133 sizeof(struct iphdr) -
134 sizeof(struct tcphdr),
139 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
152 BC_FILTER_MAGIC_NONE = 0,
157 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
161 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
164 /* frame type - arp, hw type - ethernet */
166 BCAST_FILTER_OFFSET_PAYLOAD_START,
167 .offset = sizeof(rfc1042_header),
168 .val = cpu_to_be32(0x08060001),
169 .mask = cpu_to_be32(0xffffffff),
174 BCAST_FILTER_OFFSET_PAYLOAD_START,
175 .offset = sizeof(rfc1042_header) + 2 +
176 sizeof(struct arphdr) +
177 ETH_ALEN + sizeof(__be32) +
179 .mask = cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
186 /* dhcp offer bcast */
188 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
193 .offset = offsetof(struct udphdr, dest),
194 .val = cpu_to_be32(0x00440000),
195 .mask = cpu_to_be32(0xffff0000),
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .mask = cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
207 /* last filter must be empty */
212 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214 if (!iwl_mvm_is_d0i3_supported(mvm))
217 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
218 spin_lock_bh(&mvm->refs_lock);
219 mvm->refs[ref_type]++;
220 spin_unlock_bh(&mvm->refs_lock);
221 iwl_trans_ref(mvm->trans);
224 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226 if (!iwl_mvm_is_d0i3_supported(mvm))
229 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
230 spin_lock_bh(&mvm->refs_lock);
231 WARN_ON(!mvm->refs[ref_type]--);
232 spin_unlock_bh(&mvm->refs_lock);
233 iwl_trans_unref(mvm->trans);
236 static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
237 enum iwl_mvm_ref_type except_ref)
241 if (!iwl_mvm_is_d0i3_supported(mvm))
244 spin_lock_bh(&mvm->refs_lock);
245 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
246 if (except_ref == i || !mvm->refs[i])
249 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
251 for (j = 0; j < mvm->refs[i]; j++)
252 iwl_trans_unref(mvm->trans);
255 spin_unlock_bh(&mvm->refs_lock);
258 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
263 if (!iwl_mvm_is_d0i3_supported(mvm))
266 spin_lock_bh(&mvm->refs_lock);
267 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
273 spin_unlock_bh(&mvm->refs_lock);
278 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
280 iwl_mvm_ref(mvm, ref_type);
282 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
286 iwl_mvm_unref(mvm, ref_type);
293 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
297 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
298 for (i = 0; i < NUM_PHY_CTX; i++) {
299 mvm->phy_ctxts[i].id = i;
300 mvm->phy_ctxts[i].ref = 0;
304 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
306 struct ieee80211_hw *hw = mvm->hw;
309 /* Tell mac80211 our characteristics */
310 hw->flags = IEEE80211_HW_SIGNAL_DBM |
311 IEEE80211_HW_SPECTRUM_MGMT |
312 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
313 IEEE80211_HW_QUEUE_CONTROL |
314 IEEE80211_HW_WANT_MONITOR_VIF |
315 IEEE80211_HW_SUPPORTS_PS |
316 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
317 IEEE80211_HW_AMPDU_AGGREGATION |
318 IEEE80211_HW_TIMING_BEACON_ONLY |
319 IEEE80211_HW_CONNECTION_MONITOR |
320 IEEE80211_HW_CHANCTX_STA_CSA |
321 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
323 hw->queues = mvm->first_agg_queue;
324 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
325 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
326 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
327 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
328 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
329 hw->rate_control_algorithm = "iwl-mvm-rs";
330 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
331 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
334 * Enable 11w if advertised by firmware and software crypto
335 * is not enabled (as the firmware will interpret some mgmt
336 * packets, so enabling it with software crypto isn't safe)
338 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
339 !iwlwifi_mod_params.sw_crypto)
340 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
342 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
343 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
344 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
345 hw->wiphy->features |=
346 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
347 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
350 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
351 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
352 hw->chanctx_data_size = sizeof(u16);
354 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
355 BIT(NL80211_IFTYPE_P2P_CLIENT) |
356 BIT(NL80211_IFTYPE_AP) |
357 BIT(NL80211_IFTYPE_P2P_GO) |
358 BIT(NL80211_IFTYPE_P2P_DEVICE) |
359 BIT(NL80211_IFTYPE_ADHOC);
361 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
362 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
363 REGULATORY_DISABLE_BEACON_HINTS;
365 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
366 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
368 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
370 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
371 hw->wiphy->n_iface_combinations =
372 ARRAY_SIZE(iwl_mvm_iface_combinations);
374 hw->wiphy->max_remain_on_channel_duration = 10000;
375 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
376 /* we can compensate an offset of up to 3 channels = 15 MHz */
377 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
379 /* Extract MAC address */
380 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
381 hw->wiphy->addresses = mvm->addresses;
382 hw->wiphy->n_addresses = 1;
384 /* Extract additional MAC addresses if available */
385 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
386 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
388 for (i = 1; i < num_mac; i++) {
389 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
391 mvm->addresses[i].addr[5]++;
392 hw->wiphy->n_addresses++;
395 iwl_mvm_reset_phy_ctxts(mvm);
397 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
399 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
401 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
402 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
403 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
404 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
405 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
406 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
408 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
409 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
410 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
413 hw->wiphy->hw_version = mvm->trans->hw_id;
415 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
416 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
418 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
420 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
421 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
422 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
423 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
424 /* we create the 802.11 header and zero length SSID IE. */
425 hw->wiphy->max_sched_scan_ie_len =
426 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
429 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
430 NL80211_FEATURE_LOW_PRIORITY_SCAN |
431 NL80211_FEATURE_P2P_GO_OPPPS |
432 NL80211_FEATURE_DYNAMIC_SMPS |
433 NL80211_FEATURE_STATIC_SMPS |
434 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
436 if (mvm->fw->ucode_capa.capa[0] &
437 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
438 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
439 if (mvm->fw->ucode_capa.capa[0] &
440 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
441 hw->wiphy->features |= NL80211_FEATURE_QUIET;
443 if (mvm->fw->ucode_capa.capa[0] &
444 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
445 hw->wiphy->features |=
446 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
448 if (mvm->fw->ucode_capa.capa[0] &
449 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
450 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
452 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
454 /* currently FW API supports only one optional cipher scheme */
455 if (mvm->fw->cs[0].cipher) {
456 mvm->hw->n_cipher_schemes = 1;
457 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
460 #ifdef CONFIG_PM_SLEEP
461 if (iwl_mvm_is_d0i3_supported(mvm) &&
462 device_can_wakeup(mvm->trans->dev)) {
463 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
464 hw->wiphy->wowlan = &mvm->wowlan;
467 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
468 mvm->trans->ops->d3_suspend &&
469 mvm->trans->ops->d3_resume &&
470 device_can_wakeup(mvm->trans->dev)) {
471 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
472 WIPHY_WOWLAN_DISCONNECT |
473 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
474 WIPHY_WOWLAN_RFKILL_RELEASE |
475 WIPHY_WOWLAN_NET_DETECT;
476 if (!iwlwifi_mod_params.sw_crypto)
477 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
478 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
479 WIPHY_WOWLAN_4WAY_HANDSHAKE;
481 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
482 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
483 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
484 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
485 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
486 hw->wiphy->wowlan = &mvm->wowlan;
490 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
491 /* assign default bcast filtering configuration */
492 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
495 ret = iwl_mvm_leds_init(mvm);
499 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
500 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
501 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
504 if (mvm->fw->ucode_capa.capa[0] &
505 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
506 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
507 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
510 ret = ieee80211_register_hw(mvm->hw);
512 iwl_mvm_leds_exit(mvm);
517 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
518 struct ieee80211_sta *sta,
521 struct iwl_mvm_sta *mvmsta;
525 * double check the IN_D0I3 flag both before and after
526 * taking the spinlock, in order to prevent taking
527 * the spinlock when not needed.
529 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
532 spin_lock(&mvm->d0i3_tx_lock);
534 * testing the flag again ensures the skb dequeue
535 * loop (on d0i3 exit) hasn't run yet.
537 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
540 mvmsta = iwl_mvm_sta_from_mac80211(sta);
541 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
542 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
545 __skb_queue_tail(&mvm->d0i3_tx, skb);
546 ieee80211_stop_queues(mvm->hw);
549 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
550 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
554 spin_unlock(&mvm->d0i3_tx_lock);
558 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
559 struct ieee80211_tx_control *control,
562 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
563 struct ieee80211_sta *sta = control->sta;
564 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
565 struct ieee80211_hdr *hdr = (void *)skb->data;
567 if (iwl_mvm_is_radio_killed(mvm)) {
568 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
572 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
573 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
574 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
577 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
578 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
579 ieee80211_is_mgmt(hdr->frame_control) &&
580 !ieee80211_is_deauth(hdr->frame_control) &&
581 !ieee80211_is_disassoc(hdr->frame_control) &&
582 !ieee80211_is_action(hdr->frame_control)))
586 if (iwl_mvm_defer_tx(mvm, sta, skb))
588 if (iwl_mvm_tx_skb(mvm, skb, sta))
593 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
597 ieee80211_free_txskb(hw, skb);
600 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
602 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
607 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
609 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
611 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
614 /* enabled by default */
618 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
619 struct ieee80211_vif *vif,
620 enum ieee80211_ampdu_mlme_action action,
621 struct ieee80211_sta *sta, u16 tid,
622 u16 *ssn, u8 buf_size)
624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
626 bool tx_agg_ref = false;
628 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
629 sta->addr, tid, action);
631 if (!(mvm->nvm_data->sku_cap_11n_enable))
634 /* return from D0i3 before starting a new Tx aggregation */
636 case IEEE80211_AMPDU_TX_START:
637 case IEEE80211_AMPDU_TX_STOP_CONT:
638 case IEEE80211_AMPDU_TX_STOP_FLUSH:
639 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
640 case IEEE80211_AMPDU_TX_OPERATIONAL:
642 * for tx start, wait synchronously until D0i3 exit to
643 * get the correct sequence number for the tid.
644 * additionally, some other ampdu actions use direct
645 * target access, which is not handled automatically
646 * by the trans layer (unlike commands), so wait for
647 * d0i3 exit in these cases as well.
649 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
659 mutex_lock(&mvm->mutex);
662 case IEEE80211_AMPDU_RX_START:
663 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
667 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
669 case IEEE80211_AMPDU_RX_STOP:
670 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
672 case IEEE80211_AMPDU_TX_START:
673 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
677 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
679 case IEEE80211_AMPDU_TX_STOP_CONT:
680 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
682 case IEEE80211_AMPDU_TX_STOP_FLUSH:
683 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
684 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
686 case IEEE80211_AMPDU_TX_OPERATIONAL:
687 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
694 mutex_unlock(&mvm->mutex);
697 * If the tid is marked as started, we won't use it for offloaded
698 * traffic on the next D0i3 entry. It's safe to unref.
701 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
706 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
707 struct ieee80211_vif *vif)
709 struct iwl_mvm *mvm = data;
710 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
712 mvmvif->uploaded = false;
713 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
715 spin_lock_bh(&mvm->time_event_lock);
716 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
717 spin_unlock_bh(&mvm->time_event_lock);
719 mvmvif->phy_ctxt = NULL;
720 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
723 static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
724 const void *data, size_t datalen)
726 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
728 ssize_t bytes_read_trans;
730 if (offset < dump_ptrs->op_mode_len) {
731 bytes_read = min_t(ssize_t, count,
732 dump_ptrs->op_mode_len - offset);
733 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
735 offset += bytes_read;
744 if (!dump_ptrs->trans_ptr)
747 offset -= dump_ptrs->op_mode_len;
748 bytes_read_trans = min_t(ssize_t, count,
749 dump_ptrs->trans_ptr->len - offset);
750 memcpy(buffer + bytes_read,
751 (u8 *)dump_ptrs->trans_ptr->data + offset,
754 return bytes_read + bytes_read_trans;
757 static void iwl_mvm_free_coredump(const void *data)
759 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
761 vfree(fw_error_dump->op_mode_ptr);
762 vfree(fw_error_dump->trans_ptr);
763 kfree(fw_error_dump);
766 static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
767 struct iwl_fw_error_dump_data **dump_data)
769 struct iwl_fw_error_dump_fifo *fifo_hdr;
775 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
778 /* Pull RXF data from all RXFs */
779 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
781 * Keep aside the additional offset that might be needed for
784 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
786 fifo_hdr = (void *)(*dump_data)->data;
787 fifo_data = (void *)fifo_hdr->data;
788 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
790 /* No need to try to read the data if the length is 0 */
794 /* Add a TLV for the RXF */
795 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
796 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
798 fifo_hdr->fifo_num = cpu_to_le32(i);
799 fifo_hdr->available_bytes =
800 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
804 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
808 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
811 fifo_hdr->fence_ptr =
812 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
815 fifo_hdr->fence_mode =
816 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
821 iwl_trans_write_prph(mvm->trans,
822 RXF_SET_FENCE_MODE + offset_diff, 0x1);
823 /* Set fence pointer to the same place like WR pointer */
824 iwl_trans_write_prph(mvm->trans,
825 RXF_LD_WR2FENCE + offset_diff, 0x1);
826 /* Set fence offset */
827 iwl_trans_write_prph(mvm->trans,
828 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
832 fifo_len /= sizeof(u32); /* Size in DWORDS */
833 for (j = 0; j < fifo_len; j++)
834 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
835 RXF_FIFO_RD_FENCE_INC +
837 *dump_data = iwl_fw_error_next_data(*dump_data);
840 /* Pull TXF data from all TXFs */
841 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
842 /* Mark the number of TXF we're pulling now */
843 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
845 fifo_hdr = (void *)(*dump_data)->data;
846 fifo_data = (void *)fifo_hdr->data;
847 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
849 /* No need to try to read the data if the length is 0 */
853 /* Add a TLV for the FIFO */
854 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
855 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
857 fifo_hdr->fifo_num = cpu_to_le32(i);
858 fifo_hdr->available_bytes =
859 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
862 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
865 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
867 fifo_hdr->fence_ptr =
868 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
870 fifo_hdr->fence_mode =
871 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
874 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
875 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
878 /* Dummy-read to advance the read pointer to the head */
879 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
882 fifo_len /= sizeof(u32); /* Size in DWORDS */
883 for (j = 0; j < fifo_len; j++)
884 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
885 TXF_READ_MODIFY_DATA);
886 *dump_data = iwl_fw_error_next_data(*dump_data);
889 iwl_trans_release_nic_access(mvm->trans, &flags);
892 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
894 struct iwl_fw_error_dump_file *dump_file;
895 struct iwl_fw_error_dump_data *dump_data;
896 struct iwl_fw_error_dump_info *dump_info;
897 struct iwl_fw_error_dump_mem *dump_mem;
898 struct iwl_mvm_dump_ptrs *fw_error_dump;
899 u32 sram_len, sram_ofs;
900 u32 file_len, fifo_data_len = 0;
901 u32 smem_len = mvm->cfg->smem_len;
902 u32 sram2_len = mvm->cfg->dccm2_len;
904 lockdep_assert_held(&mvm->mutex);
906 /* W/A for 8000 HW family A-step */
907 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
908 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) {
916 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
920 /* SRAM - include stack CCM if driver knows the values for it */
921 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
922 const struct fw_img *img;
924 img = &mvm->fw->img[mvm->cur_ucode];
925 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
926 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
928 sram_ofs = mvm->cfg->dccm_offset;
929 sram_len = mvm->cfg->dccm_len;
932 /* reading RXF/TXF sizes */
933 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
934 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
940 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
941 if (!mem_cfg->rxfifo_size[i])
944 /* Add header info */
945 fifo_data_len += mem_cfg->rxfifo_size[i] +
947 sizeof(struct iwl_fw_error_dump_fifo);
950 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
951 if (!mem_cfg->txfifo_size[i])
954 /* Add header info */
955 fifo_data_len += mem_cfg->txfifo_size[i] +
957 sizeof(struct iwl_fw_error_dump_fifo);
961 file_len = sizeof(*dump_file) +
962 sizeof(*dump_data) * 2 +
963 sram_len + sizeof(*dump_mem) +
967 /* Make room for the SMEM, if it exists */
969 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
971 /* Make room for the secondary SRAM, if it exists */
973 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
975 dump_file = vzalloc(file_len);
977 kfree(fw_error_dump);
981 fw_error_dump->op_mode_ptr = dump_file;
983 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
984 dump_data = (void *)dump_file->data;
986 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
987 dump_data->len = cpu_to_le32(sizeof(*dump_info));
988 dump_info = (void *) dump_data->data;
989 dump_info->device_family =
990 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
991 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
992 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
993 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
994 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
995 sizeof(dump_info->fw_human_readable));
996 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
997 sizeof(dump_info->dev_human_readable));
998 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
999 sizeof(dump_info->bus_human_readable));
1001 dump_data = iwl_fw_error_next_data(dump_data);
1002 /* We only dump the FIFOs if the FW is in error state */
1003 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1004 iwl_mvm_dump_fifos(mvm, &dump_data);
1006 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1007 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1008 dump_mem = (void *)dump_data->data;
1009 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1010 dump_mem->offset = cpu_to_le32(sram_ofs);
1011 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
1015 dump_data = iwl_fw_error_next_data(dump_data);
1016 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1017 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1018 dump_mem = (void *)dump_data->data;
1019 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1020 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
1021 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
1022 dump_mem->data, smem_len);
1026 dump_data = iwl_fw_error_next_data(dump_data);
1027 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1028 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1029 dump_mem = (void *)dump_data->data;
1030 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1031 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1032 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1033 dump_mem->data, sram2_len);
1036 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1037 fw_error_dump->op_mode_len = file_len;
1038 if (fw_error_dump->trans_ptr)
1039 file_len += fw_error_dump->trans_ptr->len;
1040 dump_file->file_len = cpu_to_le32(file_len);
1042 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1043 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
1046 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1048 /* clear the D3 reconfig, we only need it to avoid dumping a
1049 * firmware coredump on reconfiguration, we shouldn't do that
1050 * on D3->D0 transition
1052 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
1053 iwl_mvm_fw_error_dump(mvm);
1055 /* cleanup all stale references (scan, roc), but keep the
1056 * ucode_down ref until reconfig is complete
1058 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1060 iwl_trans_stop_device(mvm->trans);
1062 mvm->scan_status = IWL_MVM_SCAN_NONE;
1063 mvm->ps_disabled = false;
1064 mvm->calibrating = false;
1066 /* just in case one was running */
1067 ieee80211_remain_on_channel_expired(mvm->hw);
1069 ieee80211_iterate_active_interfaces_atomic(
1070 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1071 iwl_mvm_cleanup_iterator, mvm);
1073 mvm->p2p_device_vif = NULL;
1074 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1076 iwl_mvm_reset_phy_ctxts(mvm);
1077 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1078 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
1079 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
1080 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1081 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1082 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1083 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1084 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1085 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
1087 ieee80211_wake_queues(mvm->hw);
1089 /* clear any stale d0i3 state */
1090 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1093 mvm->rx_ba_sessions = 0;
1096 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
1100 lockdep_assert_held(&mvm->mutex);
1102 /* Clean up some internal and mac80211 state on restart */
1103 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1104 iwl_mvm_restart_cleanup(mvm);
1106 ret = iwl_mvm_up(mvm);
1108 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1109 /* Something went wrong - we need to finish some cleanup
1110 * that normally iwl_mvm_mac_restart_complete() below
1113 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1114 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1120 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1125 /* Some hw restart cleanups must not hold the mutex */
1126 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1128 * Make sure we are out of d0i3. This is needed
1129 * to make sure the reference accounting is correct
1130 * (and there is no stale d0i3_exit_work).
1132 wait_event_timeout(mvm->d0i3_exit_waitq,
1133 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1138 mutex_lock(&mvm->mutex);
1139 ret = __iwl_mvm_mac_start(mvm);
1140 mutex_unlock(&mvm->mutex);
1145 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1149 mutex_lock(&mvm->mutex);
1151 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1152 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1153 ret = iwl_mvm_update_quotas(mvm, NULL);
1155 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1158 /* allow transport/FW low power modes */
1159 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1162 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1163 * of packets the FW sent out, so we must reconnect.
1165 iwl_mvm_teardown_tdls_peers(mvm);
1167 mutex_unlock(&mvm->mutex);
1170 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1174 if (!iwl_mvm_is_d0i3_supported(mvm))
1177 mutex_lock(&mvm->d0i3_suspend_mutex);
1178 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1179 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1180 &mvm->d0i3_suspend_flags);
1181 mutex_unlock(&mvm->d0i3_suspend_mutex);
1184 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1185 _iwl_mvm_exit_d0i3(mvm);
1188 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1189 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1190 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1193 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
1197 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1198 enum ieee80211_reconfig_type reconfig_type)
1200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1202 switch (reconfig_type) {
1203 case IEEE80211_RECONFIG_TYPE_RESTART:
1204 iwl_mvm_restart_complete(mvm);
1206 case IEEE80211_RECONFIG_TYPE_SUSPEND:
1207 iwl_mvm_resume_complete(mvm);
1212 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1214 lockdep_assert_held(&mvm->mutex);
1217 * Disallow low power states when the FW is down by taking
1218 * the UCODE_DOWN ref. in case of ongoing hw restart the
1219 * ref is already taken, so don't take it again.
1221 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1222 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1224 /* async_handlers_wk is now blocked */
1227 * The work item could be running or queued if the
1228 * ROC time event stops just as we get here.
1230 cancel_work_sync(&mvm->roc_done_wk);
1232 iwl_trans_stop_device(mvm->trans);
1234 iwl_mvm_async_handlers_purge(mvm);
1235 /* async_handlers_list is empty and will stay empty: HW is stopped */
1237 /* the fw is stopped, the aux sta is dead: clean up driver state */
1238 iwl_mvm_del_aux_sta(mvm);
1241 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1242 * won't be called in this case).
1244 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1246 mvm->ucode_loaded = false;
1249 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1253 flush_work(&mvm->d0i3_exit_work);
1254 flush_work(&mvm->async_handlers_wk);
1255 flush_work(&mvm->fw_error_dump_wk);
1257 mutex_lock(&mvm->mutex);
1258 __iwl_mvm_mac_stop(mvm);
1259 mutex_unlock(&mvm->mutex);
1262 * The worker might have been waiting for the mutex, let it run and
1263 * discover that its list is now empty.
1265 cancel_work_sync(&mvm->async_handlers_wk);
1268 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1272 lockdep_assert_held(&mvm->mutex);
1274 for (i = 0; i < NUM_PHY_CTX; i++)
1275 if (!mvm->phy_ctxts[i].ref)
1276 return &mvm->phy_ctxts[i];
1278 IWL_ERR(mvm, "No available PHY context\n");
1282 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1285 /* FW is in charge of regulatory enforcement */
1286 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1287 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1288 .pwr_restriction = cpu_to_le16(tx_power),
1291 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1292 sizeof(reduce_txpwr_cmd),
1296 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1297 struct ieee80211_vif *vif)
1299 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1304 * make sure D0i3 exit is completed, otherwise a target access
1305 * during tx queue configuration could be done when still in
1308 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1313 * Not much to do here. The stack will not allow interface
1314 * types or combinations that we didn't advertise, so we
1315 * don't really have to check the types.
1318 mutex_lock(&mvm->mutex);
1320 /* Allocate resources for the MAC context, and add it to the fw */
1321 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1325 /* Counting number of interfaces is needed for legacy PM */
1326 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1330 * The AP binding flow can be done only after the beacon
1331 * template is configured (which happens only in the mac80211
1332 * start_ap() flow), and adding the broadcast station can happen
1333 * only after the binding.
1334 * In addition, since modifying the MAC before adding a bcast
1335 * station is not allowed by the FW, delay the adding of MAC context to
1336 * the point where we can also add the bcast station.
1337 * In short: there's not much we can do at this point, other than
1338 * allocating resources :)
1340 if (vif->type == NL80211_IFTYPE_AP ||
1341 vif->type == NL80211_IFTYPE_ADHOC) {
1342 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1344 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1348 iwl_mvm_vif_dbgfs_register(mvm, vif);
1352 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1356 ret = iwl_mvm_power_update_mac(mvm);
1358 goto out_remove_mac;
1360 /* beacon filtering */
1361 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1363 goto out_remove_mac;
1365 if (!mvm->bf_allowed_vif &&
1366 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1367 mvm->bf_allowed_vif = mvmvif;
1368 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1369 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1373 * P2P_DEVICE interface does not have a channel context assigned to it,
1374 * so a dedicated PHY context is allocated to it and the corresponding
1375 * MAC context is bound to it at this stage.
1377 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1379 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1380 if (!mvmvif->phy_ctxt) {
1385 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1386 ret = iwl_mvm_binding_add_vif(mvm, vif);
1390 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1394 /* Save a pointer to p2p device vif, so it can later be used to
1395 * update the p2p device MAC when a GO is started/stopped */
1396 mvm->p2p_device_vif = vif;
1399 iwl_mvm_vif_dbgfs_register(mvm, vif);
1403 iwl_mvm_binding_remove_vif(mvm, vif);
1405 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1407 if (mvm->bf_allowed_vif == mvmvif) {
1408 mvm->bf_allowed_vif = NULL;
1409 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1410 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1413 mvmvif->phy_ctxt = NULL;
1414 iwl_mvm_mac_ctxt_remove(mvm, vif);
1416 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1419 iwl_mvm_mac_ctxt_release(mvm, vif);
1421 mutex_unlock(&mvm->mutex);
1423 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1428 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1429 struct ieee80211_vif *vif)
1431 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1434 mutex_lock(&mvm->mutex);
1435 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1436 mutex_unlock(&mvm->mutex);
1439 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1441 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1442 * We assume here that all the packets sent to the OFFCHANNEL
1443 * queue are sent in ROC session.
1445 flush_work(&mvm->roc_done_wk);
1448 * By now, all the AC queues are empty. The AGG queues are
1449 * empty too. We already got all the Tx responses for all the
1450 * packets in the queues. The drain work can have been
1451 * triggered. Flush it.
1453 flush_work(&mvm->sta_drained_wk);
1457 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1458 struct ieee80211_vif *vif)
1460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1461 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1463 iwl_mvm_prepare_mac_removal(mvm, vif);
1465 mutex_lock(&mvm->mutex);
1467 if (mvm->bf_allowed_vif == mvmvif) {
1468 mvm->bf_allowed_vif = NULL;
1469 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1470 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1473 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1476 * For AP/GO interface, the tear down of the resources allocated to the
1477 * interface is be handled as part of the stop_ap flow.
1479 if (vif->type == NL80211_IFTYPE_AP ||
1480 vif->type == NL80211_IFTYPE_ADHOC) {
1481 #ifdef CONFIG_NL80211_TESTMODE
1482 if (vif == mvm->noa_vif) {
1483 mvm->noa_vif = NULL;
1484 mvm->noa_duration = 0;
1487 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1491 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1492 mvm->p2p_device_vif = NULL;
1493 iwl_mvm_rm_bcast_sta(mvm, vif);
1494 iwl_mvm_binding_remove_vif(mvm, vif);
1495 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1496 mvmvif->phy_ctxt = NULL;
1499 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1502 iwl_mvm_power_update_mac(mvm);
1503 iwl_mvm_mac_ctxt_remove(mvm, vif);
1506 iwl_mvm_mac_ctxt_release(mvm, vif);
1507 mutex_unlock(&mvm->mutex);
1510 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1515 struct iwl_mvm_mc_iter_data {
1516 struct iwl_mvm *mvm;
1520 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1521 struct ieee80211_vif *vif)
1523 struct iwl_mvm_mc_iter_data *data = _data;
1524 struct iwl_mvm *mvm = data->mvm;
1525 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1528 /* if we don't have free ports, mcast frames will be dropped */
1529 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1532 if (vif->type != NL80211_IFTYPE_STATION ||
1533 !vif->bss_conf.assoc)
1536 cmd->port_id = data->port_id++;
1537 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1538 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1540 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1542 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1545 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1547 struct iwl_mvm_mc_iter_data iter_data = {
1551 lockdep_assert_held(&mvm->mutex);
1553 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1556 ieee80211_iterate_active_interfaces_atomic(
1557 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1558 iwl_mvm_mc_iface_iterator, &iter_data);
1561 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1562 struct netdev_hw_addr_list *mc_list)
1564 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1565 struct iwl_mcast_filter_cmd *cmd;
1566 struct netdev_hw_addr *addr;
1571 addr_count = netdev_hw_addr_list_count(mc_list);
1572 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1573 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1577 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1578 cmd = kzalloc(len, GFP_ATOMIC);
1584 return (u64)(unsigned long)cmd;
1587 netdev_hw_addr_list_for_each(addr, mc_list) {
1588 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1589 cmd->count, addr->addr);
1590 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1591 addr->addr, ETH_ALEN);
1595 return (u64)(unsigned long)cmd;
1598 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1599 unsigned int changed_flags,
1600 unsigned int *total_flags,
1603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1604 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1606 mutex_lock(&mvm->mutex);
1608 /* replace previous configuration */
1609 kfree(mvm->mcast_filter_cmd);
1610 mvm->mcast_filter_cmd = cmd;
1615 iwl_mvm_recalc_multicast(mvm);
1617 mutex_unlock(&mvm->mutex);
1621 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1622 struct iwl_bcast_iter_data {
1623 struct iwl_mvm *mvm;
1624 struct iwl_bcast_filter_cmd *cmd;
1629 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1630 const struct iwl_fw_bcast_filter *in_filter,
1631 struct iwl_fw_bcast_filter *out_filter)
1633 struct iwl_fw_bcast_filter_attr *attr;
1636 memcpy(out_filter, in_filter, sizeof(*out_filter));
1638 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1639 attr = &out_filter->attrs[i];
1644 switch (attr->reserved1) {
1645 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1646 if (vif->bss_conf.arp_addr_cnt != 1) {
1651 attr->val = vif->bss_conf.arp_addr_list[0];
1653 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1654 attr->val = *(__be32 *)&vif->addr[2];
1659 attr->reserved1 = 0;
1660 out_filter->num_attrs++;
1664 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1665 struct ieee80211_vif *vif)
1667 struct iwl_bcast_iter_data *data = _data;
1668 struct iwl_mvm *mvm = data->mvm;
1669 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1670 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1671 struct iwl_fw_bcast_mac *bcast_mac;
1674 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1677 bcast_mac = &cmd->macs[mvmvif->id];
1680 * enable filtering only for associated stations, but not for P2P
1683 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1684 !vif->bss_conf.assoc)
1687 bcast_mac->default_discard = 1;
1689 /* copy all configured filters */
1690 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1692 * Make sure we don't exceed our filters limit.
1693 * if there is still a valid filter to be configured,
1694 * be on the safe side and just allow bcast for this mac.
1696 if (WARN_ON_ONCE(data->current_filter >=
1697 ARRAY_SIZE(cmd->filters))) {
1698 bcast_mac->default_discard = 0;
1699 bcast_mac->attached_filters = 0;
1703 iwl_mvm_set_bcast_filter(vif,
1704 &mvm->bcast_filters[i],
1705 &cmd->filters[data->current_filter]);
1707 /* skip current filter if it contains no attributes */
1708 if (!cmd->filters[data->current_filter].num_attrs)
1711 /* attach the filter to current mac */
1712 bcast_mac->attached_filters |=
1713 cpu_to_le16(BIT(data->current_filter));
1715 data->current_filter++;
1719 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1720 struct iwl_bcast_filter_cmd *cmd)
1722 struct iwl_bcast_iter_data iter_data = {
1727 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1730 memset(cmd, 0, sizeof(*cmd));
1731 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1732 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1734 #ifdef CONFIG_IWLWIFI_DEBUGFS
1735 /* use debugfs filters/macs if override is configured */
1736 if (mvm->dbgfs_bcast_filtering.override) {
1737 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1738 sizeof(cmd->filters));
1739 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1745 /* if no filters are configured, do nothing */
1746 if (!mvm->bcast_filters)
1749 /* configure and attach these filters for each associated sta vif */
1750 ieee80211_iterate_active_interfaces(
1751 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1752 iwl_mvm_bcast_filter_iterator, &iter_data);
1756 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1757 struct ieee80211_vif *vif)
1759 struct iwl_bcast_filter_cmd cmd;
1761 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1764 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1767 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1771 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1772 struct ieee80211_vif *vif)
1778 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1779 struct ieee80211_vif *vif,
1780 struct ieee80211_bss_conf *bss_conf,
1783 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1787 * Re-calculate the tsf id, as the master-slave relations depend on the
1788 * beacon interval, which was not known when the station interface was
1791 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1792 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1795 * If we're not associated yet, take the (new) BSSID before associating
1796 * so the firmware knows. If we're already associated, then use the old
1797 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1798 * branch for disassociation below.
1800 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1801 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1803 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1805 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1807 /* after sending it once, adopt mac80211 data */
1808 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1809 mvmvif->associated = bss_conf->assoc;
1811 if (changes & BSS_CHANGED_ASSOC) {
1812 if (bss_conf->assoc) {
1813 /* add quota for this interface */
1814 ret = iwl_mvm_update_quotas(mvm, NULL);
1816 IWL_ERR(mvm, "failed to update quotas\n");
1820 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1823 * If we're restarting then the firmware will
1824 * obviously have lost synchronisation with
1825 * the AP. It will attempt to synchronise by
1826 * itself, but we can make it more reliable by
1827 * scheduling a session protection time event.
1829 * The firmware needs to receive a beacon to
1830 * catch up with synchronisation, use 110% of
1831 * the beacon interval.
1833 * Set a large maximum delay to allow for more
1834 * than a single interface.
1836 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1837 iwl_mvm_protect_session(mvm, vif, dur, dur,
1841 iwl_mvm_sf_update(mvm, vif, false);
1842 iwl_mvm_power_vif_assoc(mvm, vif);
1844 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1845 iwl_mvm_update_smps(mvm, vif,
1846 IWL_MVM_SMPS_REQ_PROT,
1847 IEEE80211_SMPS_DYNAMIC);
1849 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1851 * If update fails - SF might be running in associated
1852 * mode while disassociated - which is forbidden.
1854 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1855 "Failed to update SF upon disassociation\n");
1857 /* remove AP station now that the MAC is unassoc */
1858 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1860 IWL_ERR(mvm, "failed to remove AP station\n");
1862 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1863 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1864 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1865 /* remove quota for this interface */
1866 ret = iwl_mvm_update_quotas(mvm, NULL);
1868 IWL_ERR(mvm, "failed to update quotas\n");
1871 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1873 /* this will take the cleared BSSID from bss_conf */
1874 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1877 "failed to update MAC %pM (clear after unassoc)\n",
1881 iwl_mvm_recalc_multicast(mvm);
1882 iwl_mvm_configure_bcast_filter(mvm, vif);
1884 /* reset rssi values */
1885 mvmvif->bf_data.ave_beacon_signal = 0;
1887 iwl_mvm_bt_coex_vif_change(mvm);
1888 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1889 IEEE80211_SMPS_AUTOMATIC);
1890 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1892 * We received a beacon _after_ association so
1893 * remove the session protection.
1895 iwl_mvm_remove_time_event(mvm, mvmvif,
1896 &mvmvif->time_event_data);
1899 if (changes & BSS_CHANGED_BEACON_INFO) {
1900 iwl_mvm_sf_update(mvm, vif, false);
1901 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1904 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1905 ret = iwl_mvm_power_update_mac(mvm);
1907 IWL_ERR(mvm, "failed to update power mode\n");
1910 if (changes & BSS_CHANGED_TXPOWER) {
1911 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1913 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1916 if (changes & BSS_CHANGED_CQM) {
1917 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1918 /* reset cqm events tracking */
1919 mvmvif->bf_data.last_cqm_event = 0;
1920 if (mvmvif->bf_data.bf_enabled) {
1921 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1924 "failed to update CQM thresholds\n");
1928 if (changes & BSS_CHANGED_ARP_FILTER) {
1929 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1930 iwl_mvm_configure_bcast_filter(mvm, vif);
1934 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1935 struct ieee80211_vif *vif)
1937 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1938 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1942 * iwl_mvm_mac_ctxt_add() might read directly from the device
1943 * (the system time), so make sure it is available.
1945 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1949 mutex_lock(&mvm->mutex);
1951 /* Send the beacon template */
1952 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1957 * Re-calculate the tsf id, as the master-slave relations depend on the
1958 * beacon interval, which was not known when the AP interface was added.
1960 if (vif->type == NL80211_IFTYPE_AP)
1961 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1963 /* Add the mac context */
1964 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1968 /* Perform the binding */
1969 ret = iwl_mvm_binding_add_vif(mvm, vif);
1973 /* Send the bcast station. At this stage the TBTT and DTIM time events
1974 * are added and applied to the scheduler */
1975 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1979 /* must be set before quota calculations */
1980 mvmvif->ap_ibss_active = true;
1982 /* power updated needs to be done before quotas */
1983 iwl_mvm_power_update_mac(mvm);
1985 ret = iwl_mvm_update_quotas(mvm, NULL);
1987 goto out_quota_failed;
1989 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1990 if (vif->p2p && mvm->p2p_device_vif)
1991 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1993 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1995 iwl_mvm_bt_coex_vif_change(mvm);
1997 /* we don't support TDLS during DCM */
1998 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1999 iwl_mvm_teardown_tdls_peers(mvm);
2001 mutex_unlock(&mvm->mutex);
2005 iwl_mvm_power_update_mac(mvm);
2006 mvmvif->ap_ibss_active = false;
2007 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2009 iwl_mvm_binding_remove_vif(mvm, vif);
2011 iwl_mvm_mac_ctxt_remove(mvm, vif);
2013 mutex_unlock(&mvm->mutex);
2014 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
2018 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2019 struct ieee80211_vif *vif)
2021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2024 iwl_mvm_prepare_mac_removal(mvm, vif);
2026 mutex_lock(&mvm->mutex);
2028 /* Handle AP stop while in CSA */
2029 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2030 iwl_mvm_remove_time_event(mvm, mvmvif,
2031 &mvmvif->time_event_data);
2032 RCU_INIT_POINTER(mvm->csa_vif, NULL);
2035 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2036 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2037 mvm->csa_tx_block_bcn_timeout = 0;
2040 mvmvif->ap_ibss_active = false;
2041 mvm->ap_last_beacon_gp2 = 0;
2043 iwl_mvm_bt_coex_vif_change(mvm);
2045 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2047 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2048 if (vif->p2p && mvm->p2p_device_vif)
2049 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2051 iwl_mvm_update_quotas(mvm, NULL);
2052 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2053 iwl_mvm_binding_remove_vif(mvm, vif);
2055 iwl_mvm_power_update_mac(mvm);
2057 iwl_mvm_mac_ctxt_remove(mvm, vif);
2059 mutex_unlock(&mvm->mutex);
2063 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2064 struct ieee80211_vif *vif,
2065 struct ieee80211_bss_conf *bss_conf,
2068 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2070 /* Changes will be applied when the AP/IBSS is started */
2071 if (!mvmvif->ap_ibss_active)
2074 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2075 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2076 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2077 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2079 /* Need to send a new beacon template to the FW */
2080 if (changes & BSS_CHANGED_BEACON &&
2081 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2082 IWL_WARN(mvm, "Failed updating beacon data\n");
2084 if (changes & BSS_CHANGED_TXPOWER) {
2085 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2087 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2092 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2093 struct ieee80211_vif *vif,
2094 struct ieee80211_bss_conf *bss_conf,
2097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2100 * iwl_mvm_bss_info_changed_station() might call
2101 * iwl_mvm_protect_session(), which reads directly from
2102 * the device (the system time), so make sure it is available.
2104 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2107 mutex_lock(&mvm->mutex);
2109 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2110 iwl_mvm_scan_offload_stop(mvm, true);
2112 switch (vif->type) {
2113 case NL80211_IFTYPE_STATION:
2114 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2116 case NL80211_IFTYPE_AP:
2117 case NL80211_IFTYPE_ADHOC:
2118 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2121 /* shouldn't happen */
2125 mutex_unlock(&mvm->mutex);
2126 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
2129 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
2130 enum iwl_scan_status scan_type)
2133 bool wait_for_handlers = false;
2135 mutex_lock(&mvm->mutex);
2137 if (mvm->scan_status != scan_type) {
2139 /* make sure there are no pending notifications */
2140 wait_for_handlers = true;
2144 switch (scan_type) {
2145 case IWL_MVM_SCAN_SCHED:
2146 ret = iwl_mvm_scan_offload_stop(mvm, true);
2148 case IWL_MVM_SCAN_OS:
2149 ret = iwl_mvm_cancel_scan(mvm);
2151 case IWL_MVM_SCAN_NONE:
2160 wait_for_handlers = true;
2162 mutex_unlock(&mvm->mutex);
2164 /* make sure we consume the completion notification */
2165 if (wait_for_handlers)
2166 iwl_mvm_wait_for_async_handlers(mvm);
2170 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2171 struct ieee80211_vif *vif,
2172 struct ieee80211_scan_request *hw_req)
2174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2175 struct cfg80211_scan_request *req = &hw_req->req;
2178 if (req->n_channels == 0 ||
2179 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
2182 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2183 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2188 mutex_lock(&mvm->mutex);
2190 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2195 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2197 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
2198 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
2199 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2200 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
2202 ret = iwl_mvm_scan_request(mvm, vif, req);
2205 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2207 mutex_unlock(&mvm->mutex);
2211 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2212 struct ieee80211_vif *vif)
2214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2216 mutex_lock(&mvm->mutex);
2218 iwl_mvm_cancel_scan(mvm);
2220 mutex_unlock(&mvm->mutex);
2224 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2225 struct ieee80211_sta *sta, u16 tids,
2227 enum ieee80211_frame_release_type reason,
2230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2232 /* Called when we need to transmit (a) frame(s) from mac80211 */
2234 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2235 tids, more_data, false);
2239 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2240 struct ieee80211_sta *sta, u16 tids,
2242 enum ieee80211_frame_release_type reason,
2245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2247 /* Called when we need to transmit (a) frame(s) from agg queue */
2249 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2250 tids, more_data, true);
2253 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2254 struct ieee80211_vif *vif,
2255 enum sta_notify_cmd cmd,
2256 struct ieee80211_sta *sta)
2258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2259 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2263 case STA_NOTIFY_SLEEP:
2264 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
2265 ieee80211_sta_block_awake(hw, sta, true);
2266 spin_lock_bh(&mvmsta->lock);
2267 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2268 struct iwl_mvm_tid_data *tid_data;
2270 tid_data = &mvmsta->tid_data[tid];
2271 if (tid_data->state != IWL_AGG_ON &&
2272 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2274 if (iwl_mvm_tid_queued(tid_data) == 0)
2276 ieee80211_sta_set_buffered(sta, tid, true);
2278 spin_unlock_bh(&mvmsta->lock);
2280 * The fw updates the STA to be asleep. Tx packets on the Tx
2281 * queues to this station will not be transmitted. The fw will
2282 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2285 case STA_NOTIFY_AWAKE:
2286 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2288 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2295 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2296 struct ieee80211_vif *vif,
2297 struct ieee80211_sta *sta)
2299 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2300 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2303 * This is called before mac80211 does RCU synchronisation,
2304 * so here we already invalidate our internal RCU-protected
2305 * station pointer. The rest of the code will thus no longer
2306 * be able to find the station this way, and we don't rely
2307 * on further RCU synchronisation after the sta_state()
2308 * callback deleted the station.
2310 mutex_lock(&mvm->mutex);
2311 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2312 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2314 mutex_unlock(&mvm->mutex);
2317 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2320 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2323 if (iwlwifi_mod_params.uapsd_disable) {
2324 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2328 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2331 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2332 struct ieee80211_vif *vif,
2333 struct ieee80211_sta *sta,
2334 enum ieee80211_sta_state old_state,
2335 enum ieee80211_sta_state new_state)
2337 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2338 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2341 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2342 sta->addr, old_state, new_state);
2344 /* this would be a mac80211 bug ... but don't crash */
2345 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2348 /* if a STA is being removed, reuse its ID */
2349 flush_work(&mvm->sta_drained_wk);
2351 mutex_lock(&mvm->mutex);
2352 if (old_state == IEEE80211_STA_NOTEXIST &&
2353 new_state == IEEE80211_STA_NONE) {
2355 * Firmware bug - it'll crash if the beacon interval is less
2356 * than 16. We can't avoid connecting at all, so refuse the
2357 * station state change, this will cause mac80211 to abandon
2358 * attempts to connect to this AP, and eventually wpa_s will
2359 * blacklist the AP...
2361 if (vif->type == NL80211_IFTYPE_STATION &&
2362 vif->bss_conf.beacon_int < 16) {
2364 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2365 sta->addr, vif->bss_conf.beacon_int);
2372 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2373 IWL_MVM_TDLS_STA_COUNT ||
2374 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2375 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2380 ret = iwl_mvm_add_sta(mvm, vif, sta);
2381 if (sta->tdls && ret == 0)
2382 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2383 } else if (old_state == IEEE80211_STA_NONE &&
2384 new_state == IEEE80211_STA_AUTH) {
2386 * EBS may be disabled due to previous failures reported by FW.
2387 * Reset EBS status here assuming environment has been changed.
2389 mvm->last_ebs_successful = true;
2390 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
2392 } else if (old_state == IEEE80211_STA_AUTH &&
2393 new_state == IEEE80211_STA_ASSOC) {
2394 ret = iwl_mvm_update_sta(mvm, vif, sta);
2396 iwl_mvm_rs_rate_init(mvm, sta,
2397 mvmvif->phy_ctxt->channel->band,
2399 } else if (old_state == IEEE80211_STA_ASSOC &&
2400 new_state == IEEE80211_STA_AUTHORIZED) {
2402 /* we don't support TDLS during DCM */
2403 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2404 iwl_mvm_teardown_tdls_peers(mvm);
2406 /* enable beacon filtering */
2407 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2409 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2410 new_state == IEEE80211_STA_ASSOC) {
2411 /* disable beacon filtering */
2412 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2414 } else if (old_state == IEEE80211_STA_ASSOC &&
2415 new_state == IEEE80211_STA_AUTH) {
2417 } else if (old_state == IEEE80211_STA_AUTH &&
2418 new_state == IEEE80211_STA_NONE) {
2420 } else if (old_state == IEEE80211_STA_NONE &&
2421 new_state == IEEE80211_STA_NOTEXIST) {
2422 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2424 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2429 mutex_unlock(&mvm->mutex);
2431 if (sta->tdls && ret == 0) {
2432 if (old_state == IEEE80211_STA_NOTEXIST &&
2433 new_state == IEEE80211_STA_NONE)
2434 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2435 else if (old_state == IEEE80211_STA_NONE &&
2436 new_state == IEEE80211_STA_NOTEXIST)
2437 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2443 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2445 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2447 mvm->rts_threshold = value;
2452 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2453 struct ieee80211_vif *vif,
2454 struct ieee80211_sta *sta, u32 changed)
2456 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2458 if (vif->type == NL80211_IFTYPE_STATION &&
2459 changed & IEEE80211_RC_NSS_CHANGED)
2460 iwl_mvm_sf_update(mvm, vif, false);
2463 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2464 struct ieee80211_vif *vif, u16 ac,
2465 const struct ieee80211_tx_queue_params *params)
2467 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2470 mvmvif->queue_params[ac] = *params;
2473 * No need to update right away, we'll get BSS_CHANGED_QOS
2474 * The exception is P2P_DEVICE interface which needs immediate update.
2476 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2479 mutex_lock(&mvm->mutex);
2480 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2481 mutex_unlock(&mvm->mutex);
2487 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2488 struct ieee80211_vif *vif)
2490 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2491 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2492 200 + vif->bss_conf.beacon_int);
2493 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2494 100 + vif->bss_conf.beacon_int);
2496 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2500 * iwl_mvm_protect_session() reads directly from the device
2501 * (the system time), so make sure it is available.
2503 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2506 mutex_lock(&mvm->mutex);
2507 /* Try really hard to protect the session and hear a beacon */
2508 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2509 mutex_unlock(&mvm->mutex);
2511 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2514 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2515 struct ieee80211_vif *vif,
2516 struct cfg80211_sched_scan_request *req,
2517 struct ieee80211_scan_ies *ies)
2519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2522 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2523 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2528 mutex_lock(&mvm->mutex);
2530 /* Newest FW fixes sched scan while connected on another interface */
2531 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2532 if (!vif->bss_conf.idle) {
2536 } else if (!iwl_mvm_is_idle(mvm)) {
2541 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2546 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
2548 mvm->scan_status = IWL_MVM_SCAN_NONE;
2551 mutex_unlock(&mvm->mutex);
2555 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2556 struct ieee80211_vif *vif)
2558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2561 mutex_lock(&mvm->mutex);
2562 ret = iwl_mvm_scan_offload_stop(mvm, false);
2563 mutex_unlock(&mvm->mutex);
2564 iwl_mvm_wait_for_async_handlers(mvm);
2570 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2571 enum set_key_cmd cmd,
2572 struct ieee80211_vif *vif,
2573 struct ieee80211_sta *sta,
2574 struct ieee80211_key_conf *key)
2576 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2579 if (iwlwifi_mod_params.sw_crypto) {
2580 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2584 switch (key->cipher) {
2585 case WLAN_CIPHER_SUITE_TKIP:
2586 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2588 case WLAN_CIPHER_SUITE_CCMP:
2589 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2591 case WLAN_CIPHER_SUITE_AES_CMAC:
2592 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2594 case WLAN_CIPHER_SUITE_WEP40:
2595 case WLAN_CIPHER_SUITE_WEP104:
2596 /* For non-client mode, only use WEP keys for TX as we probably
2597 * don't have a station yet anyway and would then have to keep
2598 * track of the keys, linking them to each of the clients/peers
2599 * as they appear. For now, don't do that, for performance WEP
2600 * offload doesn't really matter much, but we need it for some
2601 * other offload features in client mode.
2603 if (vif->type != NL80211_IFTYPE_STATION)
2607 /* currently FW supports only one optional cipher scheme */
2608 if (hw->n_cipher_schemes &&
2609 hw->cipher_schemes->cipher == key->cipher)
2610 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2615 mutex_lock(&mvm->mutex);
2619 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2620 vif->type == NL80211_IFTYPE_AP) && !sta) {
2622 * GTK on AP interface is a TX-only key, return 0;
2623 * on IBSS they're per-station and because we're lazy
2624 * we don't support them for RX, so do the same.
2627 key->hw_key_idx = STA_KEY_IDX_INVALID;
2631 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2632 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2634 IWL_WARN(mvm, "set key failed\n");
2636 * can't add key for RX, but we don't need it
2637 * in the device for TX so still return 0
2639 key->hw_key_idx = STA_KEY_IDX_INVALID;
2645 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2650 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2651 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2657 mutex_unlock(&mvm->mutex);
2661 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2662 struct ieee80211_vif *vif,
2663 struct ieee80211_key_conf *keyconf,
2664 struct ieee80211_sta *sta,
2665 u32 iv32, u16 *phase1key)
2667 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2669 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2672 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2676 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2677 struct iwl_rx_packet *pkt, void *data)
2679 struct iwl_mvm *mvm =
2680 container_of(notif_wait, struct iwl_mvm, notif_wait);
2681 struct iwl_hs20_roc_res *resp;
2682 int resp_len = iwl_rx_packet_payload_len(pkt);
2683 struct iwl_mvm_time_event_data *te_data = data;
2685 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2688 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2689 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2693 resp = (void *)pkt->data;
2696 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2697 resp->status, resp->event_unique_id);
2699 te_data->uid = le32_to_cpu(resp->event_unique_id);
2700 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2703 spin_lock_bh(&mvm->time_event_lock);
2704 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2705 spin_unlock_bh(&mvm->time_event_lock);
2710 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2711 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2712 struct ieee80211_channel *channel,
2713 struct ieee80211_vif *vif,
2716 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2717 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2718 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2719 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2720 struct iwl_notification_wait wait_time_event;
2721 struct iwl_hs20_roc_req aux_roc_req = {
2722 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2724 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2725 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2726 /* Set the channel info data */
2727 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2728 PHY_BAND_24 : PHY_BAND_5,
2729 .channel_info.channel = channel->hw_value,
2730 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2731 /* Set the time and duration */
2732 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2733 .apply_time_max_delay =
2734 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2735 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2738 /* Set the node address */
2739 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2741 lockdep_assert_held(&mvm->mutex);
2743 spin_lock_bh(&mvm->time_event_lock);
2745 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2746 spin_unlock_bh(&mvm->time_event_lock);
2751 te_data->duration = duration;
2752 te_data->id = HOT_SPOT_CMD;
2754 spin_unlock_bh(&mvm->time_event_lock);
2757 * Use a notification wait, which really just processes the
2758 * command response and doesn't wait for anything, in order
2759 * to be able to process the response and get the UID inside
2760 * the RX path. Using CMD_WANT_SKB doesn't work because it
2761 * stores the buffer and then wakes up this thread, by which
2762 * time another notification (that the time event started)
2763 * might already be processed unsuccessfully.
2765 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2766 time_event_response,
2767 ARRAY_SIZE(time_event_response),
2768 iwl_mvm_rx_aux_roc, te_data);
2770 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2774 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2775 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2779 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2780 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2781 /* should never fail */
2786 spin_lock_bh(&mvm->time_event_lock);
2787 iwl_mvm_te_clear_data(mvm, te_data);
2788 spin_unlock_bh(&mvm->time_event_lock);
2794 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2795 struct ieee80211_vif *vif,
2796 struct ieee80211_channel *channel,
2798 enum ieee80211_roc_type type)
2800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2801 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2802 struct cfg80211_chan_def chandef;
2803 struct iwl_mvm_phy_ctxt *phy_ctxt;
2806 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2809 mutex_lock(&mvm->mutex);
2811 switch (vif->type) {
2812 case NL80211_IFTYPE_STATION:
2813 if (mvm->fw->ucode_capa.capa[0] &
2814 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
2815 /* Use aux roc framework (HS20) */
2816 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2820 IWL_ERR(mvm, "hotspot not supported\n");
2823 case NL80211_IFTYPE_P2P_DEVICE:
2827 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2832 for (i = 0; i < NUM_PHY_CTX; i++) {
2833 phy_ctxt = &mvm->phy_ctxts[i];
2834 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2837 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2839 * Unbind the P2P_DEVICE from the current PHY context,
2840 * and if the PHY context is not used remove it.
2842 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2843 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2846 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2848 /* Bind the P2P_DEVICE to the current PHY Context */
2849 mvmvif->phy_ctxt = phy_ctxt;
2851 ret = iwl_mvm_binding_add_vif(mvm, vif);
2852 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2855 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2856 goto schedule_time_event;
2860 /* Need to update the PHY context only if the ROC channel changed */
2861 if (channel == mvmvif->phy_ctxt->channel)
2862 goto schedule_time_event;
2864 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2867 * Change the PHY context configuration as it is currently referenced
2868 * only by the P2P Device MAC
2870 if (mvmvif->phy_ctxt->ref == 1) {
2871 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2877 * The PHY context is shared with other MACs. Need to remove the
2878 * P2P Device from the binding, allocate an new PHY context and
2879 * create a new binding
2881 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2887 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2890 IWL_ERR(mvm, "Failed to change PHY context\n");
2894 /* Unbind the P2P_DEVICE from the current PHY context */
2895 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2896 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2899 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2901 /* Bind the P2P_DEVICE to the new allocated PHY context */
2902 mvmvif->phy_ctxt = phy_ctxt;
2904 ret = iwl_mvm_binding_add_vif(mvm, vif);
2905 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2908 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2911 schedule_time_event:
2912 /* Schedule the time events */
2913 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2916 mutex_unlock(&mvm->mutex);
2917 IWL_DEBUG_MAC80211(mvm, "leave\n");
2921 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2923 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2925 IWL_DEBUG_MAC80211(mvm, "enter\n");
2927 mutex_lock(&mvm->mutex);
2928 iwl_mvm_stop_roc(mvm);
2929 mutex_unlock(&mvm->mutex);
2931 IWL_DEBUG_MAC80211(mvm, "leave\n");
2935 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2936 struct ieee80211_chanctx_conf *ctx)
2938 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2939 struct iwl_mvm_phy_ctxt *phy_ctxt;
2942 lockdep_assert_held(&mvm->mutex);
2944 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2946 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2952 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2953 ctx->rx_chains_static,
2954 ctx->rx_chains_dynamic);
2956 IWL_ERR(mvm, "Failed to add PHY context\n");
2960 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2961 *phy_ctxt_id = phy_ctxt->id;
2966 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2967 struct ieee80211_chanctx_conf *ctx)
2969 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2972 mutex_lock(&mvm->mutex);
2973 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2974 mutex_unlock(&mvm->mutex);
2979 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2980 struct ieee80211_chanctx_conf *ctx)
2982 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2983 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2985 lockdep_assert_held(&mvm->mutex);
2987 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2990 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2991 struct ieee80211_chanctx_conf *ctx)
2993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2995 mutex_lock(&mvm->mutex);
2996 __iwl_mvm_remove_chanctx(mvm, ctx);
2997 mutex_unlock(&mvm->mutex);
3000 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3001 struct ieee80211_chanctx_conf *ctx,
3004 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3005 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3006 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3008 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3009 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3010 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
3011 IEEE80211_CHANCTX_CHANGE_RADAR |
3012 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
3013 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3014 phy_ctxt->ref, changed))
3017 mutex_lock(&mvm->mutex);
3018 iwl_mvm_bt_coex_vif_change(mvm);
3019 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
3020 ctx->rx_chains_static,
3021 ctx->rx_chains_dynamic);
3022 mutex_unlock(&mvm->mutex);
3025 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3026 struct ieee80211_vif *vif,
3027 struct ieee80211_chanctx_conf *ctx,
3028 bool switching_chanctx)
3030 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3031 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3035 lockdep_assert_held(&mvm->mutex);
3037 mvmvif->phy_ctxt = phy_ctxt;
3039 switch (vif->type) {
3040 case NL80211_IFTYPE_AP:
3041 /* only needed if we're switching chanctx (i.e. during CSA) */
3042 if (switching_chanctx) {
3043 mvmvif->ap_ibss_active = true;
3046 case NL80211_IFTYPE_ADHOC:
3048 * The AP binding flow is handled as part of the start_ap flow
3049 * (in bss_info_changed), similarly for IBSS.
3053 case NL80211_IFTYPE_STATION:
3055 case NL80211_IFTYPE_MONITOR:
3056 /* always disable PS when a monitor interface is active */
3057 mvmvif->ps_disabled = true;
3064 ret = iwl_mvm_binding_add_vif(mvm, vif);
3069 * Power state must be updated before quotas,
3070 * otherwise fw will complain.
3072 iwl_mvm_power_update_mac(mvm);
3074 /* Setting the quota at this stage is only required for monitor
3075 * interfaces. For the other types, the bss_info changed flow
3076 * will handle quota settings.
3078 if (vif->type == NL80211_IFTYPE_MONITOR) {
3079 mvmvif->monitor_active = true;
3080 ret = iwl_mvm_update_quotas(mvm, NULL);
3082 goto out_remove_binding;
3085 /* Handle binding during CSA */
3086 if (vif->type == NL80211_IFTYPE_AP) {
3087 iwl_mvm_update_quotas(mvm, NULL);
3088 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3091 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
3092 u32 duration = 2 * vif->bss_conf.beacon_int;
3094 /* iwl_mvm_protect_session() reads directly from the
3095 * device (the system time), so make sure it is
3098 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3100 goto out_remove_binding;
3102 /* Protect the session to make sure we hear the first
3103 * beacon on the new channel.
3105 iwl_mvm_protect_session(mvm, vif, duration, duration,
3106 vif->bss_conf.beacon_int / 2,
3109 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3111 iwl_mvm_update_quotas(mvm, NULL);
3117 iwl_mvm_binding_remove_vif(mvm, vif);
3118 iwl_mvm_power_update_mac(mvm);
3121 mvmvif->phy_ctxt = NULL;
3124 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3125 struct ieee80211_vif *vif,
3126 struct ieee80211_chanctx_conf *ctx)
3128 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3131 mutex_lock(&mvm->mutex);
3132 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
3133 mutex_unlock(&mvm->mutex);
3138 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3139 struct ieee80211_vif *vif,
3140 struct ieee80211_chanctx_conf *ctx,
3141 bool switching_chanctx)
3143 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3144 struct ieee80211_vif *disabled_vif = NULL;
3146 lockdep_assert_held(&mvm->mutex);
3148 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3150 switch (vif->type) {
3151 case NL80211_IFTYPE_ADHOC:
3153 case NL80211_IFTYPE_MONITOR:
3154 mvmvif->monitor_active = false;
3155 mvmvif->ps_disabled = false;
3157 case NL80211_IFTYPE_AP:
3158 /* This part is triggered only during CSA */
3159 if (!switching_chanctx || !mvmvif->ap_ibss_active)
3162 mvmvif->csa_countdown = false;
3164 /* Set CS bit on all the stations */
3165 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3167 /* Save blocked iface, the timeout is set on the next beacon */
3168 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3170 mvmvif->ap_ibss_active = false;
3172 case NL80211_IFTYPE_STATION:
3173 if (!switching_chanctx)
3178 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
3184 iwl_mvm_update_quotas(mvm, disabled_vif);
3185 iwl_mvm_binding_remove_vif(mvm, vif);
3188 mvmvif->phy_ctxt = NULL;
3189 iwl_mvm_power_update_mac(mvm);
3192 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3193 struct ieee80211_vif *vif,
3194 struct ieee80211_chanctx_conf *ctx)
3196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3198 mutex_lock(&mvm->mutex);
3199 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
3200 mutex_unlock(&mvm->mutex);
3204 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3205 struct ieee80211_vif_chanctx_switch *vifs)
3209 mutex_lock(&mvm->mutex);
3210 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3211 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3213 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3215 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3219 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3223 "failed to assign new_ctx during channel switch\n");
3227 /* we don't support TDLS during DCM - can be caused by channel switch */
3228 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3229 iwl_mvm_teardown_tdls_peers(mvm);
3234 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3237 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
3238 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3242 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3244 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3251 /* things keep failing, better restart the hw */
3252 iwl_mvm_nic_restart(mvm, false);
3255 mutex_unlock(&mvm->mutex);
3261 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3262 struct ieee80211_vif_chanctx_switch *vifs)
3266 mutex_lock(&mvm->mutex);
3267 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3269 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3273 "failed to assign new_ctx during channel switch\n");
3280 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3282 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3289 /* things keep failing, better restart the hw */
3290 iwl_mvm_nic_restart(mvm, false);
3293 mutex_unlock(&mvm->mutex);
3298 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3299 struct ieee80211_vif_chanctx_switch *vifs,
3301 enum ieee80211_chanctx_switch_mode mode)
3303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3306 /* we only support a single-vif right now */
3311 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3312 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3314 case CHANCTX_SWMODE_REASSIGN_VIF:
3315 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
3325 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3326 struct ieee80211_sta *sta,
3329 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3330 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3332 if (!mvm_sta || !mvm_sta->vif) {
3333 IWL_ERR(mvm, "Station is not associated to a vif\n");
3337 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3340 #ifdef CONFIG_NL80211_TESTMODE
3341 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3342 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3343 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3344 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3347 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3348 struct ieee80211_vif *vif,
3349 void *data, int len)
3351 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3355 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3359 if (!tb[IWL_MVM_TM_ATTR_CMD])
3362 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3363 case IWL_MVM_TM_CMD_SET_NOA:
3364 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3365 !vif->bss_conf.enable_beacon ||
3366 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3369 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3370 if (noa_duration >= vif->bss_conf.beacon_int)
3373 mvm->noa_duration = noa_duration;
3376 return iwl_mvm_update_quotas(mvm, NULL);
3377 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3378 /* must be associated client vif - ignore authorized */
3379 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3380 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3381 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3384 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3385 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3386 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3392 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3393 struct ieee80211_vif *vif,
3394 void *data, int len)
3396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3399 mutex_lock(&mvm->mutex);
3400 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3401 mutex_unlock(&mvm->mutex);
3407 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3408 struct ieee80211_vif *vif,
3409 struct ieee80211_channel_switch *chsw)
3411 /* By implementing this operation, we prevent mac80211 from
3412 * starting its own channel switch timer, so that we can call
3413 * ieee80211_chswitch_done() ourselves at the right time
3414 * (which is when the absence time event starts).
3417 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3418 "dummy channel switch op\n");
3421 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3422 struct ieee80211_vif *vif,
3423 struct ieee80211_channel_switch *chsw)
3425 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3426 struct ieee80211_vif *csa_vif;
3427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3431 mutex_lock(&mvm->mutex);
3433 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
3434 chsw->chandef.center_freq1);
3436 switch (vif->type) {
3437 case NL80211_IFTYPE_AP:
3439 rcu_dereference_protected(mvm->csa_vif,
3440 lockdep_is_held(&mvm->mutex));
3441 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3442 "Another CSA is already in progress")) {
3447 rcu_assign_pointer(mvm->csa_vif, vif);
3449 if (WARN_ONCE(mvmvif->csa_countdown,
3450 "Previous CSA countdown didn't complete")) {
3456 case NL80211_IFTYPE_STATION:
3457 /* Schedule the time event to a bit before beacon 1,
3458 * to make sure we're in the new channel when the
3461 apply_time = chsw->device_timestamp +
3462 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3463 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
3466 iwl_mvm_csa_client_absent(mvm, vif);
3468 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
3470 if (mvmvif->bf_data.bf_enabled) {
3471 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3481 mvmvif->ps_disabled = true;
3483 ret = iwl_mvm_power_update_ps(mvm);
3487 /* we won't be on this channel any longer */
3488 iwl_mvm_teardown_tdls_peers(mvm);
3491 mutex_unlock(&mvm->mutex);
3496 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3497 struct ieee80211_vif *vif)
3499 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3500 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3503 mutex_lock(&mvm->mutex);
3505 if (vif->type == NL80211_IFTYPE_STATION) {
3506 struct iwl_mvm_sta *mvmsta;
3508 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3511 if (WARN_ON(!mvmsta)) {
3516 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3518 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3520 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3524 iwl_mvm_stop_session_protection(mvm, vif);
3527 mvmvif->ps_disabled = false;
3529 ret = iwl_mvm_power_update_ps(mvm);
3532 mutex_unlock(&mvm->mutex);
3537 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3538 struct ieee80211_vif *vif, u32 queues, bool drop)
3540 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3541 struct iwl_mvm_vif *mvmvif;
3542 struct iwl_mvm_sta *mvmsta;
3543 struct ieee80211_sta *sta;
3547 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3550 mutex_lock(&mvm->mutex);
3551 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3553 /* flush the AP-station and all TDLS peers */
3554 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3555 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3556 lockdep_is_held(&mvm->mutex));
3557 if (IS_ERR_OR_NULL(sta))
3560 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3561 if (mvmsta->vif != vif)
3564 /* make sure only TDLS peers or the AP are flushed */
3565 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3567 msk |= mvmsta->tfd_queue_msk;
3571 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3572 IWL_ERR(mvm, "flush request fail\n");
3573 mutex_unlock(&mvm->mutex);
3575 mutex_unlock(&mvm->mutex);
3577 /* this can take a while, and we may need/want other operations
3578 * to succeed while doing this, so do it without the mutex held
3580 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3584 const struct ieee80211_ops iwl_mvm_hw_ops = {
3585 .tx = iwl_mvm_mac_tx,
3586 .ampdu_action = iwl_mvm_mac_ampdu_action,
3587 .start = iwl_mvm_mac_start,
3588 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
3589 .stop = iwl_mvm_mac_stop,
3590 .add_interface = iwl_mvm_mac_add_interface,
3591 .remove_interface = iwl_mvm_mac_remove_interface,
3592 .config = iwl_mvm_mac_config,
3593 .prepare_multicast = iwl_mvm_prepare_multicast,
3594 .configure_filter = iwl_mvm_configure_filter,
3595 .bss_info_changed = iwl_mvm_bss_info_changed,
3596 .hw_scan = iwl_mvm_mac_hw_scan,
3597 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3598 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3599 .sta_state = iwl_mvm_mac_sta_state,
3600 .sta_notify = iwl_mvm_mac_sta_notify,
3601 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3602 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3603 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3604 .sta_rc_update = iwl_mvm_sta_rc_update,
3605 .conf_tx = iwl_mvm_mac_conf_tx,
3606 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3607 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3608 .flush = iwl_mvm_mac_flush,
3609 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3610 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3611 .set_key = iwl_mvm_mac_set_key,
3612 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3613 .remain_on_channel = iwl_mvm_roc,
3614 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3615 .add_chanctx = iwl_mvm_add_chanctx,
3616 .remove_chanctx = iwl_mvm_remove_chanctx,
3617 .change_chanctx = iwl_mvm_change_chanctx,
3618 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3619 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3620 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3622 .start_ap = iwl_mvm_start_ap_ibss,
3623 .stop_ap = iwl_mvm_stop_ap_ibss,
3624 .join_ibss = iwl_mvm_start_ap_ibss,
3625 .leave_ibss = iwl_mvm_stop_ap_ibss,
3627 .set_tim = iwl_mvm_set_tim,
3629 .channel_switch = iwl_mvm_channel_switch,
3630 .pre_channel_switch = iwl_mvm_pre_channel_switch,
3631 .post_channel_switch = iwl_mvm_post_channel_switch,
3633 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3634 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3635 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3637 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3639 #ifdef CONFIG_PM_SLEEP
3641 .suspend = iwl_mvm_suspend,
3642 .resume = iwl_mvm_resume,
3643 .set_wakeup = iwl_mvm_set_wakeup,
3644 .set_rekey_data = iwl_mvm_set_rekey_data,
3645 #if IS_ENABLED(CONFIG_IPV6)
3646 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3648 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,