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"
89 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
92 .types = BIT(NL80211_IFTYPE_STATION),
96 .types = BIT(NL80211_IFTYPE_AP) |
97 BIT(NL80211_IFTYPE_P2P_CLIENT) |
98 BIT(NL80211_IFTYPE_P2P_GO),
102 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
106 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
108 .num_different_channels = 1,
110 .limits = iwl_mvm_limits,
111 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
115 #ifdef CONFIG_PM_SLEEP
116 static const struct nl80211_wowlan_tcp_data_token_feature
117 iwl_mvm_wowlan_tcp_token_feature = {
120 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
123 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
124 .tok = &iwl_mvm_wowlan_tcp_token_feature,
125 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
126 sizeof(struct ethhdr) -
127 sizeof(struct iphdr) -
128 sizeof(struct tcphdr),
129 .data_interval_max = 65535, /* __le16 in API */
130 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
131 sizeof(struct ethhdr) -
132 sizeof(struct iphdr) -
133 sizeof(struct tcphdr),
138 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
140 * Use the reserved field to indicate magic values.
141 * these values will only be used internally by the driver,
142 * and won't make it to the fw (reserved will be 0).
143 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
144 * be the vif's ip address. in case there is not a single
145 * ip address (0, or more than 1), this attribute will
147 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
148 * the LSB bytes of the vif's mac address
151 BC_FILTER_MAGIC_NONE = 0,
156 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
160 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
163 /* frame type - arp, hw type - ethernet */
165 BCAST_FILTER_OFFSET_PAYLOAD_START,
166 .offset = sizeof(rfc1042_header),
167 .val = cpu_to_be32(0x08060001),
168 .mask = cpu_to_be32(0xffffffff),
173 BCAST_FILTER_OFFSET_PAYLOAD_START,
174 .offset = sizeof(rfc1042_header) + 2 +
175 sizeof(struct arphdr) +
176 ETH_ALEN + sizeof(__be32) +
178 .mask = cpu_to_be32(0xffffffff),
179 /* mark it as special field */
180 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
185 /* dhcp offer bcast */
187 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
190 /* udp dest port - 68 (bootp client)*/
191 .offset_type = BCAST_FILTER_OFFSET_IP_END,
192 .offset = offsetof(struct udphdr, dest),
193 .val = cpu_to_be32(0x00440000),
194 .mask = cpu_to_be32(0xffff0000),
197 /* dhcp - lsb bytes of client hw address */
198 .offset_type = BCAST_FILTER_OFFSET_IP_END,
200 .mask = cpu_to_be32(0xffffffff),
201 /* mark it as special field */
202 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
206 /* last filter must be empty */
211 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
213 if (!iwl_mvm_is_d0i3_supported(mvm))
216 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
217 spin_lock_bh(&mvm->refs_lock);
218 mvm->refs[ref_type]++;
219 spin_unlock_bh(&mvm->refs_lock);
220 iwl_trans_ref(mvm->trans);
223 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
225 if (!iwl_mvm_is_d0i3_supported(mvm))
228 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
229 spin_lock_bh(&mvm->refs_lock);
230 WARN_ON(!mvm->refs[ref_type]--);
231 spin_unlock_bh(&mvm->refs_lock);
232 iwl_trans_unref(mvm->trans);
235 static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
236 enum iwl_mvm_ref_type except_ref)
240 if (!iwl_mvm_is_d0i3_supported(mvm))
243 spin_lock_bh(&mvm->refs_lock);
244 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
245 if (except_ref == i || !mvm->refs[i])
248 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
250 for (j = 0; j < mvm->refs[i]; j++)
251 iwl_trans_unref(mvm->trans);
254 spin_unlock_bh(&mvm->refs_lock);
257 bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
262 if (!iwl_mvm_is_d0i3_supported(mvm))
265 spin_lock_bh(&mvm->refs_lock);
266 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
272 spin_unlock_bh(&mvm->refs_lock);
277 int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
279 iwl_mvm_ref(mvm, ref_type);
281 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
282 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
285 iwl_mvm_unref(mvm, ref_type);
292 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
296 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
297 for (i = 0; i < NUM_PHY_CTX; i++) {
298 mvm->phy_ctxts[i].id = i;
299 mvm->phy_ctxts[i].ref = 0;
303 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
305 struct ieee80211_hw *hw = mvm->hw;
308 /* Tell mac80211 our characteristics */
309 hw->flags = IEEE80211_HW_SIGNAL_DBM |
310 IEEE80211_HW_SPECTRUM_MGMT |
311 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
312 IEEE80211_HW_QUEUE_CONTROL |
313 IEEE80211_HW_WANT_MONITOR_VIF |
314 IEEE80211_HW_SUPPORTS_PS |
315 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
316 IEEE80211_HW_AMPDU_AGGREGATION |
317 IEEE80211_HW_TIMING_BEACON_ONLY |
318 IEEE80211_HW_CONNECTION_MONITOR |
319 IEEE80211_HW_CHANCTX_STA_CSA |
320 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
322 hw->queues = mvm->first_agg_queue;
323 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
324 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
325 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
326 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
327 hw->rate_control_algorithm = "iwl-mvm-rs";
330 * Enable 11w if advertised by firmware and software crypto
331 * is not enabled (as the firmware will interpret some mgmt
332 * packets, so enabling it with software crypto isn't safe)
334 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
335 !iwlwifi_mod_params.sw_crypto)
336 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
338 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
339 IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
340 !iwlwifi_mod_params.uapsd_disable) {
341 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
342 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
343 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
346 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
347 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
348 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
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 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
369 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
371 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
372 hw->wiphy->n_iface_combinations =
373 ARRAY_SIZE(iwl_mvm_iface_combinations);
375 hw->wiphy->max_remain_on_channel_duration = 10000;
376 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
378 /* Extract MAC address */
379 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
380 hw->wiphy->addresses = mvm->addresses;
381 hw->wiphy->n_addresses = 1;
383 /* Extract additional MAC addresses if available */
384 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
385 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
387 for (i = 1; i < num_mac; i++) {
388 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
390 mvm->addresses[i].addr[5]++;
391 hw->wiphy->n_addresses++;
394 iwl_mvm_reset_phy_ctxts(mvm);
396 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
398 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
400 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
401 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
402 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
403 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
404 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
405 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
407 hw->wiphy->hw_version = mvm->trans->hw_id;
409 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
410 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
412 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
414 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
415 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
416 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
417 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
418 /* we create the 802.11 header and zero length SSID IE. */
419 hw->wiphy->max_sched_scan_ie_len =
420 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
423 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
424 NL80211_FEATURE_LOW_PRIORITY_SCAN |
425 NL80211_FEATURE_P2P_GO_OPPPS |
426 NL80211_FEATURE_DYNAMIC_SMPS |
427 NL80211_FEATURE_STATIC_SMPS |
428 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
430 if (mvm->fw->ucode_capa.capa[0] &
431 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
432 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
433 if (mvm->fw->ucode_capa.capa[0] &
434 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
435 hw->wiphy->features |= NL80211_FEATURE_QUIET;
437 if (mvm->fw->ucode_capa.capa[0] &
438 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
439 hw->wiphy->features |=
440 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
442 if (mvm->fw->ucode_capa.capa[0] &
443 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
444 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
446 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
448 /* currently FW API supports only one optional cipher scheme */
449 if (mvm->fw->cs[0].cipher) {
450 mvm->hw->n_cipher_schemes = 1;
451 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
454 #ifdef CONFIG_PM_SLEEP
455 if (iwl_mvm_is_d0i3_supported(mvm) &&
456 device_can_wakeup(mvm->trans->dev)) {
457 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
458 hw->wiphy->wowlan = &mvm->wowlan;
459 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
460 mvm->trans->ops->d3_suspend &&
461 mvm->trans->ops->d3_resume &&
462 device_can_wakeup(mvm->trans->dev)) {
463 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
464 WIPHY_WOWLAN_DISCONNECT |
465 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
466 WIPHY_WOWLAN_RFKILL_RELEASE;
467 if (!iwlwifi_mod_params.sw_crypto)
468 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
469 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
470 WIPHY_WOWLAN_4WAY_HANDSHAKE;
472 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
473 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
474 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
475 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
476 hw->wiphy->wowlan = &mvm->wowlan;
480 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
481 /* assign default bcast filtering configuration */
482 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
485 ret = iwl_mvm_leds_init(mvm);
489 ret = ieee80211_register_hw(mvm->hw);
491 iwl_mvm_leds_exit(mvm);
496 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
497 struct ieee80211_sta *sta,
500 struct iwl_mvm_sta *mvmsta;
504 * double check the IN_D0I3 flag both before and after
505 * taking the spinlock, in order to prevent taking
506 * the spinlock when not needed.
508 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
511 spin_lock(&mvm->d0i3_tx_lock);
513 * testing the flag again ensures the skb dequeue
514 * loop (on d0i3 exit) hasn't run yet.
516 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
519 mvmsta = iwl_mvm_sta_from_mac80211(sta);
520 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
521 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
524 __skb_queue_tail(&mvm->d0i3_tx, skb);
525 ieee80211_stop_queues(mvm->hw);
528 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
529 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
533 spin_unlock(&mvm->d0i3_tx_lock);
537 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
538 struct ieee80211_tx_control *control,
541 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
542 struct ieee80211_sta *sta = control->sta;
543 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
544 struct ieee80211_hdr *hdr = (void *)skb->data;
546 if (iwl_mvm_is_radio_killed(mvm)) {
547 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
551 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
552 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
553 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
556 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
557 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
558 ieee80211_is_mgmt(hdr->frame_control) &&
559 !ieee80211_is_deauth(hdr->frame_control) &&
560 !ieee80211_is_disassoc(hdr->frame_control) &&
561 !ieee80211_is_action(hdr->frame_control)))
565 if (iwl_mvm_defer_tx(mvm, sta, skb))
567 if (iwl_mvm_tx_skb(mvm, skb, sta))
572 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
576 ieee80211_free_txskb(hw, skb);
579 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
581 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
586 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
588 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
590 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
593 /* enabled by default */
597 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
598 struct ieee80211_vif *vif,
599 enum ieee80211_ampdu_mlme_action action,
600 struct ieee80211_sta *sta, u16 tid,
601 u16 *ssn, u8 buf_size)
603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
605 bool tx_agg_ref = false;
607 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
608 sta->addr, tid, action);
610 if (!(mvm->nvm_data->sku_cap_11n_enable))
613 /* return from D0i3 before starting a new Tx aggregation */
615 case IEEE80211_AMPDU_TX_START:
616 case IEEE80211_AMPDU_TX_STOP_CONT:
617 case IEEE80211_AMPDU_TX_STOP_FLUSH:
618 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
619 case IEEE80211_AMPDU_TX_OPERATIONAL:
621 * for tx start, wait synchronously until D0i3 exit to
622 * get the correct sequence number for the tid.
623 * additionally, some other ampdu actions use direct
624 * target access, which is not handled automatically
625 * by the trans layer (unlike commands), so wait for
626 * d0i3 exit in these cases as well.
628 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
638 mutex_lock(&mvm->mutex);
641 case IEEE80211_AMPDU_RX_START:
642 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
646 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
648 case IEEE80211_AMPDU_RX_STOP:
649 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
651 case IEEE80211_AMPDU_TX_START:
652 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
656 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
658 case IEEE80211_AMPDU_TX_STOP_CONT:
659 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
661 case IEEE80211_AMPDU_TX_STOP_FLUSH:
662 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
663 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
665 case IEEE80211_AMPDU_TX_OPERATIONAL:
666 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
673 mutex_unlock(&mvm->mutex);
676 * If the tid is marked as started, we won't use it for offloaded
677 * traffic on the next D0i3 entry. It's safe to unref.
680 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
685 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
686 struct ieee80211_vif *vif)
688 struct iwl_mvm *mvm = data;
689 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
691 mvmvif->uploaded = false;
692 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
694 /* does this make sense at all? */
697 spin_lock_bh(&mvm->time_event_lock);
698 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
699 spin_unlock_bh(&mvm->time_event_lock);
701 mvmvif->phy_ctxt = NULL;
702 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
705 static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
706 const void *data, size_t datalen)
708 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
710 ssize_t bytes_read_trans;
712 if (offset < dump_ptrs->op_mode_len) {
713 bytes_read = min_t(ssize_t, count,
714 dump_ptrs->op_mode_len - offset);
715 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
717 offset += bytes_read;
726 if (!dump_ptrs->trans_ptr)
729 offset -= dump_ptrs->op_mode_len;
730 bytes_read_trans = min_t(ssize_t, count,
731 dump_ptrs->trans_ptr->len - offset);
732 memcpy(buffer + bytes_read,
733 (u8 *)dump_ptrs->trans_ptr->data + offset,
736 return bytes_read + bytes_read_trans;
739 static void iwl_mvm_free_coredump(const void *data)
741 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
743 vfree(fw_error_dump->op_mode_ptr);
744 vfree(fw_error_dump->trans_ptr);
745 kfree(fw_error_dump);
748 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
750 struct iwl_fw_error_dump_file *dump_file;
751 struct iwl_fw_error_dump_data *dump_data;
752 struct iwl_fw_error_dump_info *dump_info;
753 struct iwl_mvm_dump_ptrs *fw_error_dump;
754 const struct fw_img *img;
755 u32 sram_len, sram_ofs;
756 u32 file_len, rxf_len;
760 lockdep_assert_held(&mvm->mutex);
762 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
766 img = &mvm->fw->img[mvm->cur_ucode];
767 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
768 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
770 /* reading buffer size */
771 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
772 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
774 /* the register holds the value divided by 128 */
775 rxf_len = rxf_len << 7;
777 file_len = sizeof(*dump_file) +
778 sizeof(*dump_data) * 3 +
783 dump_file = vzalloc(file_len);
785 kfree(fw_error_dump);
789 fw_error_dump->op_mode_ptr = dump_file;
791 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
792 dump_data = (void *)dump_file->data;
794 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
795 dump_data->len = cpu_to_le32(sizeof(*dump_info));
796 dump_info = (void *) dump_data->data;
797 dump_info->device_family =
798 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
799 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
800 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
801 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
802 sizeof(dump_info->fw_human_readable));
803 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
804 sizeof(dump_info->dev_human_readable));
805 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
806 sizeof(dump_info->bus_human_readable));
808 dump_data = iwl_fw_error_next_data(dump_data);
809 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
810 dump_data->len = cpu_to_le32(rxf_len);
812 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
813 u32 *rxf = (void *)dump_data->data;
816 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
817 iwl_trans_write_prph(mvm->trans,
818 RXF_LD_FENCE_OFFSET_ADDR,
820 rxf[i] = iwl_trans_read_prph(mvm->trans,
821 RXF_FIFO_RD_FENCE_ADDR);
823 iwl_trans_release_nic_access(mvm->trans, &flags);
826 dump_data = iwl_fw_error_next_data(dump_data);
827 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
828 dump_data->len = cpu_to_le32(sram_len);
829 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
832 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
833 fw_error_dump->op_mode_len = file_len;
834 if (fw_error_dump->trans_ptr)
835 file_len += fw_error_dump->trans_ptr->len;
836 dump_file->file_len = cpu_to_le32(file_len);
838 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
839 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
842 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
844 /* clear the D3 reconfig, we only need it to avoid dumping a
845 * firmware coredump on reconfiguration, we shouldn't do that
846 * on D3->D0 transition
848 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
849 iwl_mvm_fw_error_dump(mvm);
851 iwl_trans_stop_device(mvm->trans);
853 mvm->scan_status = IWL_MVM_SCAN_NONE;
854 mvm->ps_disabled = false;
855 mvm->calibrating = false;
857 /* just in case one was running */
858 ieee80211_remain_on_channel_expired(mvm->hw);
860 ieee80211_iterate_active_interfaces_atomic(
861 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
862 iwl_mvm_cleanup_iterator, mvm);
864 mvm->p2p_device_vif = NULL;
865 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
867 iwl_mvm_reset_phy_ctxts(mvm);
868 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
869 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
870 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
871 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
872 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
873 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
874 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
875 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
877 ieee80211_wake_queues(mvm->hw);
879 /* cleanup all stale references (scan, roc), but keep the
880 * ucode_down ref until reconfig is complete */
881 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
883 /* clear any stale d0i3 state */
884 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
887 mvm->rx_ba_sessions = 0;
890 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
894 lockdep_assert_held(&mvm->mutex);
896 /* Clean up some internal and mac80211 state on restart */
897 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
898 iwl_mvm_restart_cleanup(mvm);
900 ret = iwl_mvm_up(mvm);
902 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
903 /* Something went wrong - we need to finish some cleanup
904 * that normally iwl_mvm_mac_restart_complete() below
907 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
908 iwl_mvm_d0i3_enable_tx(mvm, NULL);
914 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
916 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
919 mutex_lock(&mvm->mutex);
920 ret = __iwl_mvm_mac_start(mvm);
921 mutex_unlock(&mvm->mutex);
926 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
930 mutex_lock(&mvm->mutex);
932 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
933 iwl_mvm_d0i3_enable_tx(mvm, NULL);
934 ret = iwl_mvm_update_quotas(mvm, NULL);
936 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
939 /* allow transport/FW low power modes */
940 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
942 mutex_unlock(&mvm->mutex);
945 static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
949 if (!iwl_mvm_is_d0i3_supported(mvm))
952 mutex_lock(&mvm->d0i3_suspend_mutex);
953 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
954 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
955 &mvm->d0i3_suspend_flags);
956 mutex_unlock(&mvm->d0i3_suspend_mutex);
959 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
960 _iwl_mvm_exit_d0i3(mvm);
965 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
966 enum ieee80211_reconfig_type reconfig_type)
968 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
970 switch (reconfig_type) {
971 case IEEE80211_RECONFIG_TYPE_RESTART:
972 iwl_mvm_restart_complete(mvm);
974 case IEEE80211_RECONFIG_TYPE_SUSPEND:
975 iwl_mvm_resume_complete(mvm);
980 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
982 lockdep_assert_held(&mvm->mutex);
984 /* disallow low power states when the FW is down */
985 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
987 /* async_handlers_wk is now blocked */
990 * The work item could be running or queued if the
991 * ROC time event stops just as we get here.
993 cancel_work_sync(&mvm->roc_done_wk);
995 iwl_trans_stop_device(mvm->trans);
997 iwl_mvm_async_handlers_purge(mvm);
998 /* async_handlers_list is empty and will stay empty: HW is stopped */
1000 /* the fw is stopped, the aux sta is dead: clean up driver state */
1001 iwl_mvm_del_aux_sta(mvm);
1003 mvm->ucode_loaded = false;
1006 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1008 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1010 flush_work(&mvm->d0i3_exit_work);
1011 flush_work(&mvm->async_handlers_wk);
1012 flush_work(&mvm->fw_error_dump_wk);
1014 mutex_lock(&mvm->mutex);
1015 __iwl_mvm_mac_stop(mvm);
1016 mutex_unlock(&mvm->mutex);
1019 * The worker might have been waiting for the mutex, let it run and
1020 * discover that its list is now empty.
1022 cancel_work_sync(&mvm->async_handlers_wk);
1025 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1029 lockdep_assert_held(&mvm->mutex);
1031 for (i = 0; i < NUM_PHY_CTX; i++)
1032 if (!mvm->phy_ctxts[i].ref)
1033 return &mvm->phy_ctxts[i];
1035 IWL_ERR(mvm, "No available PHY context\n");
1039 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1042 /* FW is in charge of regulatory enforcement */
1043 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1044 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1045 .pwr_restriction = cpu_to_le16(tx_power),
1048 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1049 sizeof(reduce_txpwr_cmd),
1053 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1054 struct ieee80211_vif *vif)
1056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1057 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1061 * make sure D0i3 exit is completed, otherwise a target access
1062 * during tx queue configuration could be done when still in
1065 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1070 * Not much to do here. The stack will not allow interface
1071 * types or combinations that we didn't advertise, so we
1072 * don't really have to check the types.
1075 mutex_lock(&mvm->mutex);
1077 /* Allocate resources for the MAC context, and add it to the fw */
1078 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1082 /* Counting number of interfaces is needed for legacy PM */
1083 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1087 * The AP binding flow can be done only after the beacon
1088 * template is configured (which happens only in the mac80211
1089 * start_ap() flow), and adding the broadcast station can happen
1090 * only after the binding.
1091 * In addition, since modifying the MAC before adding a bcast
1092 * station is not allowed by the FW, delay the adding of MAC context to
1093 * the point where we can also add the bcast station.
1094 * In short: there's not much we can do at this point, other than
1095 * allocating resources :)
1097 if (vif->type == NL80211_IFTYPE_AP ||
1098 vif->type == NL80211_IFTYPE_ADHOC) {
1099 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1101 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1105 iwl_mvm_vif_dbgfs_register(mvm, vif);
1109 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1113 ret = iwl_mvm_power_update_mac(mvm);
1117 /* beacon filtering */
1118 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1120 goto out_remove_mac;
1122 if (!mvm->bf_allowed_vif &&
1123 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1124 mvm->bf_allowed_vif = mvmvif;
1125 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1126 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1130 * P2P_DEVICE interface does not have a channel context assigned to it,
1131 * so a dedicated PHY context is allocated to it and the corresponding
1132 * MAC context is bound to it at this stage.
1134 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1136 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1137 if (!mvmvif->phy_ctxt) {
1142 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1143 ret = iwl_mvm_binding_add_vif(mvm, vif);
1147 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1151 /* Save a pointer to p2p device vif, so it can later be used to
1152 * update the p2p device MAC when a GO is started/stopped */
1153 mvm->p2p_device_vif = vif;
1156 iwl_mvm_vif_dbgfs_register(mvm, vif);
1160 iwl_mvm_binding_remove_vif(mvm, vif);
1162 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1164 if (mvm->bf_allowed_vif == mvmvif) {
1165 mvm->bf_allowed_vif = NULL;
1166 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1167 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1170 mvmvif->phy_ctxt = NULL;
1171 iwl_mvm_mac_ctxt_remove(mvm, vif);
1173 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1176 iwl_mvm_mac_ctxt_release(mvm, vif);
1178 mutex_unlock(&mvm->mutex);
1180 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1185 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1186 struct ieee80211_vif *vif)
1188 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1191 mutex_lock(&mvm->mutex);
1192 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1193 mutex_unlock(&mvm->mutex);
1196 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1198 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1199 * We assume here that all the packets sent to the OFFCHANNEL
1200 * queue are sent in ROC session.
1202 flush_work(&mvm->roc_done_wk);
1205 * By now, all the AC queues are empty. The AGG queues are
1206 * empty too. We already got all the Tx responses for all the
1207 * packets in the queues. The drain work can have been
1208 * triggered. Flush it.
1210 flush_work(&mvm->sta_drained_wk);
1214 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1215 struct ieee80211_vif *vif)
1217 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1218 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1220 iwl_mvm_prepare_mac_removal(mvm, vif);
1222 mutex_lock(&mvm->mutex);
1224 if (mvm->bf_allowed_vif == mvmvif) {
1225 mvm->bf_allowed_vif = NULL;
1226 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1227 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1230 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1233 * For AP/GO interface, the tear down of the resources allocated to the
1234 * interface is be handled as part of the stop_ap flow.
1236 if (vif->type == NL80211_IFTYPE_AP ||
1237 vif->type == NL80211_IFTYPE_ADHOC) {
1238 #ifdef CONFIG_NL80211_TESTMODE
1239 if (vif == mvm->noa_vif) {
1240 mvm->noa_vif = NULL;
1241 mvm->noa_duration = 0;
1244 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1248 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1249 mvm->p2p_device_vif = NULL;
1250 iwl_mvm_rm_bcast_sta(mvm, vif);
1251 iwl_mvm_binding_remove_vif(mvm, vif);
1252 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1253 mvmvif->phy_ctxt = NULL;
1256 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1259 iwl_mvm_power_update_mac(mvm);
1260 iwl_mvm_mac_ctxt_remove(mvm, vif);
1263 iwl_mvm_mac_ctxt_release(mvm, vif);
1264 mutex_unlock(&mvm->mutex);
1267 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1272 struct iwl_mvm_mc_iter_data {
1273 struct iwl_mvm *mvm;
1277 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1278 struct ieee80211_vif *vif)
1280 struct iwl_mvm_mc_iter_data *data = _data;
1281 struct iwl_mvm *mvm = data->mvm;
1282 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1285 /* if we don't have free ports, mcast frames will be dropped */
1286 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1289 if (vif->type != NL80211_IFTYPE_STATION ||
1290 !vif->bss_conf.assoc)
1293 cmd->port_id = data->port_id++;
1294 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1295 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1297 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1299 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1302 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1304 struct iwl_mvm_mc_iter_data iter_data = {
1308 lockdep_assert_held(&mvm->mutex);
1310 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1313 ieee80211_iterate_active_interfaces_atomic(
1314 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1315 iwl_mvm_mc_iface_iterator, &iter_data);
1318 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1319 struct netdev_hw_addr_list *mc_list)
1321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1322 struct iwl_mcast_filter_cmd *cmd;
1323 struct netdev_hw_addr *addr;
1328 addr_count = netdev_hw_addr_list_count(mc_list);
1329 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1330 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1334 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1335 cmd = kzalloc(len, GFP_ATOMIC);
1341 return (u64)(unsigned long)cmd;
1344 netdev_hw_addr_list_for_each(addr, mc_list) {
1345 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1346 cmd->count, addr->addr);
1347 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1348 addr->addr, ETH_ALEN);
1352 return (u64)(unsigned long)cmd;
1355 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1356 unsigned int changed_flags,
1357 unsigned int *total_flags,
1360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1361 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1363 mutex_lock(&mvm->mutex);
1365 /* replace previous configuration */
1366 kfree(mvm->mcast_filter_cmd);
1367 mvm->mcast_filter_cmd = cmd;
1372 iwl_mvm_recalc_multicast(mvm);
1374 mutex_unlock(&mvm->mutex);
1378 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1379 struct iwl_bcast_iter_data {
1380 struct iwl_mvm *mvm;
1381 struct iwl_bcast_filter_cmd *cmd;
1386 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1387 const struct iwl_fw_bcast_filter *in_filter,
1388 struct iwl_fw_bcast_filter *out_filter)
1390 struct iwl_fw_bcast_filter_attr *attr;
1393 memcpy(out_filter, in_filter, sizeof(*out_filter));
1395 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1396 attr = &out_filter->attrs[i];
1401 switch (attr->reserved1) {
1402 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1403 if (vif->bss_conf.arp_addr_cnt != 1) {
1408 attr->val = vif->bss_conf.arp_addr_list[0];
1410 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1411 attr->val = *(__be32 *)&vif->addr[2];
1416 attr->reserved1 = 0;
1417 out_filter->num_attrs++;
1421 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1422 struct ieee80211_vif *vif)
1424 struct iwl_bcast_iter_data *data = _data;
1425 struct iwl_mvm *mvm = data->mvm;
1426 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1428 struct iwl_fw_bcast_mac *bcast_mac;
1431 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1434 bcast_mac = &cmd->macs[mvmvif->id];
1437 * enable filtering only for associated stations, but not for P2P
1440 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1441 !vif->bss_conf.assoc)
1444 bcast_mac->default_discard = 1;
1446 /* copy all configured filters */
1447 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1449 * Make sure we don't exceed our filters limit.
1450 * if there is still a valid filter to be configured,
1451 * be on the safe side and just allow bcast for this mac.
1453 if (WARN_ON_ONCE(data->current_filter >=
1454 ARRAY_SIZE(cmd->filters))) {
1455 bcast_mac->default_discard = 0;
1456 bcast_mac->attached_filters = 0;
1460 iwl_mvm_set_bcast_filter(vif,
1461 &mvm->bcast_filters[i],
1462 &cmd->filters[data->current_filter]);
1464 /* skip current filter if it contains no attributes */
1465 if (!cmd->filters[data->current_filter].num_attrs)
1468 /* attach the filter to current mac */
1469 bcast_mac->attached_filters |=
1470 cpu_to_le16(BIT(data->current_filter));
1472 data->current_filter++;
1476 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1477 struct iwl_bcast_filter_cmd *cmd)
1479 struct iwl_bcast_iter_data iter_data = {
1484 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1487 memset(cmd, 0, sizeof(*cmd));
1488 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1489 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1491 #ifdef CONFIG_IWLWIFI_DEBUGFS
1492 /* use debugfs filters/macs if override is configured */
1493 if (mvm->dbgfs_bcast_filtering.override) {
1494 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1495 sizeof(cmd->filters));
1496 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1502 /* if no filters are configured, do nothing */
1503 if (!mvm->bcast_filters)
1506 /* configure and attach these filters for each associated sta vif */
1507 ieee80211_iterate_active_interfaces(
1508 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1509 iwl_mvm_bcast_filter_iterator, &iter_data);
1513 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1514 struct ieee80211_vif *vif)
1516 struct iwl_bcast_filter_cmd cmd;
1518 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1521 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1524 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1528 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1529 struct ieee80211_vif *vif)
1535 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1536 struct ieee80211_vif *vif,
1537 struct ieee80211_bss_conf *bss_conf,
1540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1544 * Re-calculate the tsf id, as the master-slave relations depend on the
1545 * beacon interval, which was not known when the station interface was
1548 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1549 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1552 * If we're not associated yet, take the (new) BSSID before associating
1553 * so the firmware knows. If we're already associated, then use the old
1554 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1555 * branch for disassociation below.
1557 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1558 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1560 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1562 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1564 /* after sending it once, adopt mac80211 data */
1565 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1566 mvmvif->associated = bss_conf->assoc;
1568 if (changes & BSS_CHANGED_ASSOC) {
1569 if (bss_conf->assoc) {
1570 /* add quota for this interface */
1571 ret = iwl_mvm_update_quotas(mvm, NULL);
1573 IWL_ERR(mvm, "failed to update quotas\n");
1577 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1580 * If we're restarting then the firmware will
1581 * obviously have lost synchronisation with
1582 * the AP. It will attempt to synchronise by
1583 * itself, but we can make it more reliable by
1584 * scheduling a session protection time event.
1586 * The firmware needs to receive a beacon to
1587 * catch up with synchronisation, use 110% of
1588 * the beacon interval.
1590 * Set a large maximum delay to allow for more
1591 * than a single interface.
1593 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1594 iwl_mvm_protect_session(mvm, vif, dur, dur,
1598 iwl_mvm_sf_update(mvm, vif, false);
1599 iwl_mvm_power_vif_assoc(mvm, vif);
1601 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1602 iwl_mvm_update_smps(mvm, vif,
1603 IWL_MVM_SMPS_REQ_PROT,
1604 IEEE80211_SMPS_DYNAMIC);
1606 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1608 * If update fails - SF might be running in associated
1609 * mode while disassociated - which is forbidden.
1611 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1612 "Failed to update SF upon disassociation\n");
1614 /* remove AP station now that the MAC is unassoc */
1615 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1617 IWL_ERR(mvm, "failed to remove AP station\n");
1619 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1620 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1621 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1622 /* remove quota for this interface */
1623 ret = iwl_mvm_update_quotas(mvm, NULL);
1625 IWL_ERR(mvm, "failed to update quotas\n");
1628 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1630 /* this will take the cleared BSSID from bss_conf */
1631 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1634 "failed to update MAC %pM (clear after unassoc)\n",
1638 iwl_mvm_recalc_multicast(mvm);
1639 iwl_mvm_configure_bcast_filter(mvm, vif);
1641 /* reset rssi values */
1642 mvmvif->bf_data.ave_beacon_signal = 0;
1644 iwl_mvm_bt_coex_vif_change(mvm);
1645 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1646 IEEE80211_SMPS_AUTOMATIC);
1647 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1649 * We received a beacon _after_ association so
1650 * remove the session protection.
1652 iwl_mvm_remove_time_event(mvm, mvmvif,
1653 &mvmvif->time_event_data);
1656 if (changes & BSS_CHANGED_BEACON_INFO) {
1657 iwl_mvm_sf_update(mvm, vif, false);
1658 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1661 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1662 ret = iwl_mvm_power_update_mac(mvm);
1664 IWL_ERR(mvm, "failed to update power mode\n");
1667 if (changes & BSS_CHANGED_TXPOWER) {
1668 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1670 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1673 if (changes & BSS_CHANGED_CQM) {
1674 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1675 /* reset cqm events tracking */
1676 mvmvif->bf_data.last_cqm_event = 0;
1677 if (mvmvif->bf_data.bf_enabled) {
1678 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1681 "failed to update CQM thresholds\n");
1685 if (changes & BSS_CHANGED_ARP_FILTER) {
1686 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1687 iwl_mvm_configure_bcast_filter(mvm, vif);
1691 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1692 struct ieee80211_vif *vif)
1694 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1695 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1699 * iwl_mvm_mac_ctxt_add() might read directly from the device
1700 * (the system time), so make sure it is available.
1702 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1706 mutex_lock(&mvm->mutex);
1708 /* Send the beacon template */
1709 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1714 * Re-calculate the tsf id, as the master-slave relations depend on the
1715 * beacon interval, which was not known when the AP interface was added.
1717 if (vif->type == NL80211_IFTYPE_AP)
1718 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1720 /* Add the mac context */
1721 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1725 /* Perform the binding */
1726 ret = iwl_mvm_binding_add_vif(mvm, vif);
1730 /* Send the bcast station. At this stage the TBTT and DTIM time events
1731 * are added and applied to the scheduler */
1732 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1736 /* must be set before quota calculations */
1737 mvmvif->ap_ibss_active = true;
1739 /* power updated needs to be done before quotas */
1740 iwl_mvm_power_update_mac(mvm);
1742 ret = iwl_mvm_update_quotas(mvm, NULL);
1744 goto out_quota_failed;
1746 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1747 if (vif->p2p && mvm->p2p_device_vif)
1748 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1750 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1752 iwl_mvm_bt_coex_vif_change(mvm);
1754 /* we don't support TDLS during DCM */
1755 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1756 iwl_mvm_teardown_tdls_peers(mvm);
1758 mutex_unlock(&mvm->mutex);
1762 iwl_mvm_power_update_mac(mvm);
1763 mvmvif->ap_ibss_active = false;
1764 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1766 iwl_mvm_binding_remove_vif(mvm, vif);
1768 iwl_mvm_mac_ctxt_remove(mvm, vif);
1770 mutex_unlock(&mvm->mutex);
1771 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
1775 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1776 struct ieee80211_vif *vif)
1778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1781 iwl_mvm_prepare_mac_removal(mvm, vif);
1783 mutex_lock(&mvm->mutex);
1785 /* Handle AP stop while in CSA */
1786 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1787 iwl_mvm_remove_time_event(mvm, mvmvif,
1788 &mvmvif->time_event_data);
1789 RCU_INIT_POINTER(mvm->csa_vif, NULL);
1792 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1793 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1794 mvm->csa_tx_block_bcn_timeout = 0;
1797 mvmvif->ap_ibss_active = false;
1798 mvm->ap_last_beacon_gp2 = 0;
1800 iwl_mvm_bt_coex_vif_change(mvm);
1802 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1804 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1805 if (vif->p2p && mvm->p2p_device_vif)
1806 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1808 iwl_mvm_update_quotas(mvm, NULL);
1809 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1810 iwl_mvm_binding_remove_vif(mvm, vif);
1812 iwl_mvm_power_update_mac(mvm);
1814 iwl_mvm_mac_ctxt_remove(mvm, vif);
1816 mutex_unlock(&mvm->mutex);
1820 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1821 struct ieee80211_vif *vif,
1822 struct ieee80211_bss_conf *bss_conf,
1825 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1827 /* Changes will be applied when the AP/IBSS is started */
1828 if (!mvmvif->ap_ibss_active)
1831 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1832 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
1833 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
1834 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1836 /* Need to send a new beacon template to the FW */
1837 if (changes & BSS_CHANGED_BEACON &&
1838 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1839 IWL_WARN(mvm, "Failed updating beacon data\n");
1841 if (changes & BSS_CHANGED_TXPOWER) {
1842 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1844 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1849 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1850 struct ieee80211_vif *vif,
1851 struct ieee80211_bss_conf *bss_conf,
1854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1857 * iwl_mvm_bss_info_changed_station() might call
1858 * iwl_mvm_protect_session(), which reads directly from
1859 * the device (the system time), so make sure it is available.
1861 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1864 mutex_lock(&mvm->mutex);
1866 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1867 iwl_mvm_scan_offload_stop(mvm, true);
1869 switch (vif->type) {
1870 case NL80211_IFTYPE_STATION:
1871 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1873 case NL80211_IFTYPE_AP:
1874 case NL80211_IFTYPE_ADHOC:
1875 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1878 /* shouldn't happen */
1882 mutex_unlock(&mvm->mutex);
1883 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
1886 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1887 enum iwl_scan_status scan_type)
1890 bool wait_for_handlers = false;
1892 mutex_lock(&mvm->mutex);
1894 if (mvm->scan_status != scan_type) {
1896 /* make sure there are no pending notifications */
1897 wait_for_handlers = true;
1901 switch (scan_type) {
1902 case IWL_MVM_SCAN_SCHED:
1903 ret = iwl_mvm_scan_offload_stop(mvm, true);
1905 case IWL_MVM_SCAN_OS:
1906 ret = iwl_mvm_cancel_scan(mvm);
1908 case IWL_MVM_SCAN_NONE:
1917 wait_for_handlers = true;
1919 mutex_unlock(&mvm->mutex);
1921 /* make sure we consume the completion notification */
1922 if (wait_for_handlers)
1923 iwl_mvm_wait_for_async_handlers(mvm);
1927 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1928 struct ieee80211_vif *vif,
1929 struct ieee80211_scan_request *hw_req)
1931 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1932 struct cfg80211_scan_request *req = &hw_req->req;
1935 if (req->n_channels == 0 ||
1936 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
1939 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1940 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1945 mutex_lock(&mvm->mutex);
1947 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1952 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1954 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
1955 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
1956 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1957 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
1959 ret = iwl_mvm_scan_request(mvm, vif, req);
1962 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1964 mutex_unlock(&mvm->mutex);
1968 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1969 struct ieee80211_vif *vif)
1971 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1973 mutex_lock(&mvm->mutex);
1975 iwl_mvm_cancel_scan(mvm);
1977 mutex_unlock(&mvm->mutex);
1981 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1982 struct ieee80211_sta *sta, u16 tids,
1984 enum ieee80211_frame_release_type reason,
1987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1989 /* Called when we need to transmit (a) frame(s) from mac80211 */
1991 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1992 tids, more_data, false);
1996 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1997 struct ieee80211_sta *sta, u16 tids,
1999 enum ieee80211_frame_release_type reason,
2002 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2004 /* Called when we need to transmit (a) frame(s) from agg queue */
2006 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2007 tids, more_data, true);
2010 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2011 struct ieee80211_vif *vif,
2012 enum sta_notify_cmd cmd,
2013 struct ieee80211_sta *sta)
2015 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2016 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2020 case STA_NOTIFY_SLEEP:
2021 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
2022 ieee80211_sta_block_awake(hw, sta, true);
2023 spin_lock_bh(&mvmsta->lock);
2024 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2025 struct iwl_mvm_tid_data *tid_data;
2027 tid_data = &mvmsta->tid_data[tid];
2028 if (tid_data->state != IWL_AGG_ON &&
2029 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2031 if (iwl_mvm_tid_queued(tid_data) == 0)
2033 ieee80211_sta_set_buffered(sta, tid, true);
2035 spin_unlock_bh(&mvmsta->lock);
2037 * The fw updates the STA to be asleep. Tx packets on the Tx
2038 * queues to this station will not be transmitted. The fw will
2039 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2042 case STA_NOTIFY_AWAKE:
2043 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2045 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2052 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2053 struct ieee80211_vif *vif,
2054 struct ieee80211_sta *sta)
2056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2057 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2060 * This is called before mac80211 does RCU synchronisation,
2061 * so here we already invalidate our internal RCU-protected
2062 * station pointer. The rest of the code will thus no longer
2063 * be able to find the station this way, and we don't rely
2064 * on further RCU synchronisation after the sta_state()
2065 * callback deleted the station.
2067 mutex_lock(&mvm->mutex);
2068 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2069 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2071 mutex_unlock(&mvm->mutex);
2074 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2075 struct ieee80211_vif *vif,
2076 struct ieee80211_sta *sta,
2077 enum ieee80211_sta_state old_state,
2078 enum ieee80211_sta_state new_state)
2080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2081 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2084 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2085 sta->addr, old_state, new_state);
2087 /* this would be a mac80211 bug ... but don't crash */
2088 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2091 /* if a STA is being removed, reuse its ID */
2092 flush_work(&mvm->sta_drained_wk);
2094 mutex_lock(&mvm->mutex);
2095 if (old_state == IEEE80211_STA_NOTEXIST &&
2096 new_state == IEEE80211_STA_NONE) {
2098 * Firmware bug - it'll crash if the beacon interval is less
2099 * than 16. We can't avoid connecting at all, so refuse the
2100 * station state change, this will cause mac80211 to abandon
2101 * attempts to connect to this AP, and eventually wpa_s will
2102 * blacklist the AP...
2104 if (vif->type == NL80211_IFTYPE_STATION &&
2105 vif->bss_conf.beacon_int < 16) {
2107 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2108 sta->addr, vif->bss_conf.beacon_int);
2115 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2116 IWL_MVM_TDLS_STA_COUNT ||
2117 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2118 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2123 ret = iwl_mvm_add_sta(mvm, vif, sta);
2124 if (sta->tdls && ret == 0)
2125 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2126 } else if (old_state == IEEE80211_STA_NONE &&
2127 new_state == IEEE80211_STA_AUTH) {
2129 * EBS may be disabled due to previous failures reported by FW.
2130 * Reset EBS status here assuming environment has been changed.
2132 mvm->last_ebs_successful = true;
2134 } else if (old_state == IEEE80211_STA_AUTH &&
2135 new_state == IEEE80211_STA_ASSOC) {
2136 ret = iwl_mvm_update_sta(mvm, vif, sta);
2138 iwl_mvm_rs_rate_init(mvm, sta,
2139 mvmvif->phy_ctxt->channel->band,
2141 } else if (old_state == IEEE80211_STA_ASSOC &&
2142 new_state == IEEE80211_STA_AUTHORIZED) {
2144 /* we don't support TDLS during DCM */
2145 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2146 iwl_mvm_teardown_tdls_peers(mvm);
2148 /* enable beacon filtering */
2149 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2151 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2152 new_state == IEEE80211_STA_ASSOC) {
2153 /* disable beacon filtering */
2154 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2156 } else if (old_state == IEEE80211_STA_ASSOC &&
2157 new_state == IEEE80211_STA_AUTH) {
2159 } else if (old_state == IEEE80211_STA_AUTH &&
2160 new_state == IEEE80211_STA_NONE) {
2162 } else if (old_state == IEEE80211_STA_NONE &&
2163 new_state == IEEE80211_STA_NOTEXIST) {
2164 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2166 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2171 mutex_unlock(&mvm->mutex);
2176 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2180 mvm->rts_threshold = value;
2185 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2186 struct ieee80211_vif *vif,
2187 struct ieee80211_sta *sta, u32 changed)
2189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2191 if (vif->type == NL80211_IFTYPE_STATION &&
2192 changed & IEEE80211_RC_NSS_CHANGED)
2193 iwl_mvm_sf_update(mvm, vif, false);
2196 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2197 struct ieee80211_vif *vif, u16 ac,
2198 const struct ieee80211_tx_queue_params *params)
2200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2201 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2203 mvmvif->queue_params[ac] = *params;
2206 * No need to update right away, we'll get BSS_CHANGED_QOS
2207 * The exception is P2P_DEVICE interface which needs immediate update.
2209 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2212 mutex_lock(&mvm->mutex);
2213 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2214 mutex_unlock(&mvm->mutex);
2220 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2221 struct ieee80211_vif *vif)
2223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2224 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2225 200 + vif->bss_conf.beacon_int);
2226 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2227 100 + vif->bss_conf.beacon_int);
2229 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2233 * iwl_mvm_protect_session() reads directly from the device
2234 * (the system time), so make sure it is available.
2236 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2239 mutex_lock(&mvm->mutex);
2240 /* Try really hard to protect the session and hear a beacon */
2241 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2242 mutex_unlock(&mvm->mutex);
2244 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2247 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2248 struct ieee80211_vif *vif,
2249 struct cfg80211_sched_scan_request *req,
2250 struct ieee80211_scan_ies *ies)
2252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2255 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2256 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2261 mutex_lock(&mvm->mutex);
2263 /* Newest FW fixes sched scan while connected on another interface */
2264 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2265 if (!vif->bss_conf.idle) {
2269 } else if (!iwl_mvm_is_idle(mvm)) {
2274 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2279 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
2281 mvm->scan_status = IWL_MVM_SCAN_NONE;
2284 mutex_unlock(&mvm->mutex);
2288 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2289 struct ieee80211_vif *vif)
2291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2294 mutex_lock(&mvm->mutex);
2295 ret = iwl_mvm_scan_offload_stop(mvm, false);
2296 mutex_unlock(&mvm->mutex);
2297 iwl_mvm_wait_for_async_handlers(mvm);
2303 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2304 enum set_key_cmd cmd,
2305 struct ieee80211_vif *vif,
2306 struct ieee80211_sta *sta,
2307 struct ieee80211_key_conf *key)
2309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2312 if (iwlwifi_mod_params.sw_crypto) {
2313 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2317 switch (key->cipher) {
2318 case WLAN_CIPHER_SUITE_TKIP:
2319 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2321 case WLAN_CIPHER_SUITE_CCMP:
2322 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2324 case WLAN_CIPHER_SUITE_AES_CMAC:
2325 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2327 case WLAN_CIPHER_SUITE_WEP40:
2328 case WLAN_CIPHER_SUITE_WEP104:
2330 * Support for TX only, at least for now, so accept
2331 * the key and do nothing else. Then mac80211 will
2332 * pass it for TX but we don't have to use it for RX.
2336 /* currently FW supports only one optional cipher scheme */
2337 if (hw->n_cipher_schemes &&
2338 hw->cipher_schemes->cipher == key->cipher)
2339 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2344 mutex_lock(&mvm->mutex);
2348 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2349 vif->type == NL80211_IFTYPE_AP) && !sta) {
2351 * GTK on AP interface is a TX-only key, return 0;
2352 * on IBSS they're per-station and because we're lazy
2353 * we don't support them for RX, so do the same.
2356 key->hw_key_idx = STA_KEY_IDX_INVALID;
2360 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2361 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2363 IWL_WARN(mvm, "set key failed\n");
2365 * can't add key for RX, but we don't need it
2366 * in the device for TX so still return 0
2368 key->hw_key_idx = STA_KEY_IDX_INVALID;
2374 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2379 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2380 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2386 mutex_unlock(&mvm->mutex);
2390 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2391 struct ieee80211_vif *vif,
2392 struct ieee80211_key_conf *keyconf,
2393 struct ieee80211_sta *sta,
2394 u32 iv32, u16 *phase1key)
2396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2398 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2401 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2405 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2406 struct iwl_rx_packet *pkt, void *data)
2408 struct iwl_mvm *mvm =
2409 container_of(notif_wait, struct iwl_mvm, notif_wait);
2410 struct iwl_hs20_roc_res *resp;
2411 int resp_len = iwl_rx_packet_payload_len(pkt);
2412 struct iwl_mvm_time_event_data *te_data = data;
2414 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2417 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2418 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2422 resp = (void *)pkt->data;
2425 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2426 resp->status, resp->event_unique_id);
2428 te_data->uid = le32_to_cpu(resp->event_unique_id);
2429 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2432 spin_lock_bh(&mvm->time_event_lock);
2433 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2434 spin_unlock_bh(&mvm->time_event_lock);
2439 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2440 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2441 struct ieee80211_channel *channel,
2442 struct ieee80211_vif *vif,
2445 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2446 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2447 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2448 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2449 struct iwl_notification_wait wait_time_event;
2450 struct iwl_hs20_roc_req aux_roc_req = {
2451 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2453 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2454 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2455 /* Set the channel info data */
2456 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2457 PHY_BAND_24 : PHY_BAND_5,
2458 .channel_info.channel = channel->hw_value,
2459 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2460 /* Set the time and duration */
2461 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2462 .apply_time_max_delay =
2463 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2464 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2467 /* Set the node address */
2468 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2470 lockdep_assert_held(&mvm->mutex);
2472 spin_lock_bh(&mvm->time_event_lock);
2474 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2475 spin_unlock_bh(&mvm->time_event_lock);
2480 te_data->duration = duration;
2481 te_data->id = HOT_SPOT_CMD;
2483 spin_unlock_bh(&mvm->time_event_lock);
2486 * Use a notification wait, which really just processes the
2487 * command response and doesn't wait for anything, in order
2488 * to be able to process the response and get the UID inside
2489 * the RX path. Using CMD_WANT_SKB doesn't work because it
2490 * stores the buffer and then wakes up this thread, by which
2491 * time another notification (that the time event started)
2492 * might already be processed unsuccessfully.
2494 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2495 time_event_response,
2496 ARRAY_SIZE(time_event_response),
2497 iwl_mvm_rx_aux_roc, te_data);
2499 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2503 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2504 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2508 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2509 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2510 /* should never fail */
2515 spin_lock_bh(&mvm->time_event_lock);
2516 iwl_mvm_te_clear_data(mvm, te_data);
2517 spin_unlock_bh(&mvm->time_event_lock);
2523 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2524 struct ieee80211_vif *vif,
2525 struct ieee80211_channel *channel,
2527 enum ieee80211_roc_type type)
2529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2530 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2531 struct cfg80211_chan_def chandef;
2532 struct iwl_mvm_phy_ctxt *phy_ctxt;
2535 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2538 mutex_lock(&mvm->mutex);
2540 switch (vif->type) {
2541 case NL80211_IFTYPE_STATION:
2542 /* Use aux roc framework (HS20) */
2543 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2546 case NL80211_IFTYPE_P2P_DEVICE:
2550 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2555 for (i = 0; i < NUM_PHY_CTX; i++) {
2556 phy_ctxt = &mvm->phy_ctxts[i];
2557 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2560 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2562 * Unbind the P2P_DEVICE from the current PHY context,
2563 * and if the PHY context is not used remove it.
2565 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2566 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2569 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2571 /* Bind the P2P_DEVICE to the current PHY Context */
2572 mvmvif->phy_ctxt = phy_ctxt;
2574 ret = iwl_mvm_binding_add_vif(mvm, vif);
2575 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2578 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2579 goto schedule_time_event;
2583 /* Need to update the PHY context only if the ROC channel changed */
2584 if (channel == mvmvif->phy_ctxt->channel)
2585 goto schedule_time_event;
2587 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2590 * Change the PHY context configuration as it is currently referenced
2591 * only by the P2P Device MAC
2593 if (mvmvif->phy_ctxt->ref == 1) {
2594 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2600 * The PHY context is shared with other MACs. Need to remove the
2601 * P2P Device from the binding, allocate an new PHY context and
2602 * create a new binding
2604 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2610 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2613 IWL_ERR(mvm, "Failed to change PHY context\n");
2617 /* Unbind the P2P_DEVICE from the current PHY context */
2618 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2619 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2622 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2624 /* Bind the P2P_DEVICE to the new allocated PHY context */
2625 mvmvif->phy_ctxt = phy_ctxt;
2627 ret = iwl_mvm_binding_add_vif(mvm, vif);
2628 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2631 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2634 schedule_time_event:
2635 /* Schedule the time events */
2636 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2639 mutex_unlock(&mvm->mutex);
2640 IWL_DEBUG_MAC80211(mvm, "leave\n");
2644 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2646 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2648 IWL_DEBUG_MAC80211(mvm, "enter\n");
2650 mutex_lock(&mvm->mutex);
2651 iwl_mvm_stop_p2p_roc(mvm);
2652 mutex_unlock(&mvm->mutex);
2654 IWL_DEBUG_MAC80211(mvm, "leave\n");
2658 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2659 struct ieee80211_chanctx_conf *ctx)
2661 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2662 struct iwl_mvm_phy_ctxt *phy_ctxt;
2665 lockdep_assert_held(&mvm->mutex);
2667 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2669 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2675 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2676 ctx->rx_chains_static,
2677 ctx->rx_chains_dynamic);
2679 IWL_ERR(mvm, "Failed to add PHY context\n");
2683 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2684 *phy_ctxt_id = phy_ctxt->id;
2689 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2690 struct ieee80211_chanctx_conf *ctx)
2692 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2695 mutex_lock(&mvm->mutex);
2696 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2697 mutex_unlock(&mvm->mutex);
2702 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2703 struct ieee80211_chanctx_conf *ctx)
2705 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2706 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2708 lockdep_assert_held(&mvm->mutex);
2710 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2713 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2714 struct ieee80211_chanctx_conf *ctx)
2716 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2718 mutex_lock(&mvm->mutex);
2719 __iwl_mvm_remove_chanctx(mvm, ctx);
2720 mutex_unlock(&mvm->mutex);
2723 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2724 struct ieee80211_chanctx_conf *ctx,
2727 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2728 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2729 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2731 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2732 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2733 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2734 IEEE80211_CHANCTX_CHANGE_RADAR |
2735 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2736 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2737 phy_ctxt->ref, changed))
2740 mutex_lock(&mvm->mutex);
2741 iwl_mvm_bt_coex_vif_change(mvm);
2742 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2743 ctx->rx_chains_static,
2744 ctx->rx_chains_dynamic);
2745 mutex_unlock(&mvm->mutex);
2748 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2749 struct ieee80211_vif *vif,
2750 struct ieee80211_chanctx_conf *ctx,
2751 bool switching_chanctx)
2753 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2754 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2755 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2758 lockdep_assert_held(&mvm->mutex);
2760 mvmvif->phy_ctxt = phy_ctxt;
2762 switch (vif->type) {
2763 case NL80211_IFTYPE_AP:
2764 /* Unless it's a CSA flow we have nothing to do here */
2765 if (vif->csa_active) {
2766 mvmvif->ap_ibss_active = true;
2769 case NL80211_IFTYPE_ADHOC:
2771 * The AP binding flow is handled as part of the start_ap flow
2772 * (in bss_info_changed), similarly for IBSS.
2776 case NL80211_IFTYPE_STATION:
2778 case NL80211_IFTYPE_MONITOR:
2779 /* always disable PS when a monitor interface is active */
2780 mvmvif->ps_disabled = true;
2787 ret = iwl_mvm_binding_add_vif(mvm, vif);
2792 * Power state must be updated before quotas,
2793 * otherwise fw will complain.
2795 iwl_mvm_power_update_mac(mvm);
2797 /* Setting the quota at this stage is only required for monitor
2798 * interfaces. For the other types, the bss_info changed flow
2799 * will handle quota settings.
2801 if (vif->type == NL80211_IFTYPE_MONITOR) {
2802 mvmvif->monitor_active = true;
2803 ret = iwl_mvm_update_quotas(mvm, NULL);
2805 goto out_remove_binding;
2808 /* Handle binding during CSA */
2809 if ((vif->type == NL80211_IFTYPE_AP) ||
2810 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
2811 iwl_mvm_update_quotas(mvm, NULL);
2812 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2815 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2816 struct iwl_mvm_sta *mvmsta;
2818 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2821 if (WARN_ON(!mvmsta))
2824 /* TODO: only re-enable after the first beacon */
2825 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2831 iwl_mvm_binding_remove_vif(mvm, vif);
2832 iwl_mvm_power_update_mac(mvm);
2835 mvmvif->phy_ctxt = NULL;
2838 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2839 struct ieee80211_vif *vif,
2840 struct ieee80211_chanctx_conf *ctx)
2842 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2845 mutex_lock(&mvm->mutex);
2846 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
2847 mutex_unlock(&mvm->mutex);
2852 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2853 struct ieee80211_vif *vif,
2854 struct ieee80211_chanctx_conf *ctx,
2855 bool switching_chanctx)
2857 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2858 struct ieee80211_vif *disabled_vif = NULL;
2859 struct iwl_mvm_sta *mvmsta;
2861 lockdep_assert_held(&mvm->mutex);
2863 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2865 switch (vif->type) {
2866 case NL80211_IFTYPE_ADHOC:
2868 case NL80211_IFTYPE_MONITOR:
2869 mvmvif->monitor_active = false;
2870 mvmvif->ps_disabled = false;
2872 case NL80211_IFTYPE_AP:
2873 /* This part is triggered only during CSA */
2874 if (!vif->csa_active || !mvmvif->ap_ibss_active)
2877 /* Set CS bit on all the stations */
2878 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2880 /* Save blocked iface, the timeout is set on the next beacon */
2881 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2883 mvmvif->ap_ibss_active = false;
2885 case NL80211_IFTYPE_STATION:
2886 if (!switching_chanctx)
2891 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2894 if (!WARN_ON(!mvmsta))
2895 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2897 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
2903 iwl_mvm_update_quotas(mvm, disabled_vif);
2904 iwl_mvm_binding_remove_vif(mvm, vif);
2907 mvmvif->phy_ctxt = NULL;
2908 iwl_mvm_power_update_mac(mvm);
2911 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2912 struct ieee80211_vif *vif,
2913 struct ieee80211_chanctx_conf *ctx)
2915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2917 mutex_lock(&mvm->mutex);
2918 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
2919 mutex_unlock(&mvm->mutex);
2922 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2923 struct ieee80211_vif_chanctx_switch *vifs,
2925 enum ieee80211_chanctx_switch_mode mode)
2927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2930 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2931 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2934 mutex_lock(&mvm->mutex);
2935 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
2936 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2938 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2940 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2944 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2948 "failed to assign new_ctx during channel switch\n");
2952 /* we don't support TDLS during DCM - can be caused by channel switch */
2953 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2954 iwl_mvm_teardown_tdls_peers(mvm);
2959 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2962 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2964 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2968 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2971 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2978 /* things keep failing, better restart the hw */
2979 iwl_mvm_nic_restart(mvm, false);
2982 mutex_unlock(&mvm->mutex);
2986 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2987 struct ieee80211_sta *sta,
2990 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2991 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2993 if (!mvm_sta || !mvm_sta->vif) {
2994 IWL_ERR(mvm, "Station is not associated to a vif\n");
2998 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3001 #ifdef CONFIG_NL80211_TESTMODE
3002 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3003 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3004 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
3005 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
3008 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3009 struct ieee80211_vif *vif,
3010 void *data, int len)
3012 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3016 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3020 if (!tb[IWL_MVM_TM_ATTR_CMD])
3023 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3024 case IWL_MVM_TM_CMD_SET_NOA:
3025 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3026 !vif->bss_conf.enable_beacon ||
3027 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3030 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3031 if (noa_duration >= vif->bss_conf.beacon_int)
3034 mvm->noa_duration = noa_duration;
3037 return iwl_mvm_update_quotas(mvm, NULL);
3038 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3039 /* must be associated client vif - ignore authorized */
3040 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3041 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3042 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3045 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3046 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3047 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3053 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3054 struct ieee80211_vif *vif,
3055 void *data, int len)
3057 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3060 mutex_lock(&mvm->mutex);
3061 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3062 mutex_unlock(&mvm->mutex);
3068 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
3069 struct ieee80211_vif *vif,
3070 struct cfg80211_chan_def *chandef)
3072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3073 struct ieee80211_vif *csa_vif;
3075 mutex_lock(&mvm->mutex);
3077 csa_vif = rcu_dereference_protected(mvm->csa_vif,
3078 lockdep_is_held(&mvm->mutex));
3079 if (WARN(csa_vif && csa_vif->csa_active,
3080 "Another CSA is already in progress"))
3083 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
3084 chandef->center_freq1);
3085 rcu_assign_pointer(mvm->csa_vif, vif);
3088 mutex_unlock(&mvm->mutex);
3091 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3092 struct ieee80211_vif *vif, u32 queues, bool drop)
3094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3095 struct iwl_mvm_vif *mvmvif;
3096 struct iwl_mvm_sta *mvmsta;
3098 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3101 mutex_lock(&mvm->mutex);
3102 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3103 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3105 if (WARN_ON_ONCE(!mvmsta)) {
3106 mutex_unlock(&mvm->mutex);
3111 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3112 IWL_ERR(mvm, "flush request fail\n");
3113 mutex_unlock(&mvm->mutex);
3115 u32 tfd_queue_msk = mvmsta->tfd_queue_msk;
3116 mutex_unlock(&mvm->mutex);
3118 /* this can take a while, and we may need/want other operations
3119 * to succeed while doing this, so do it without the mutex held
3121 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_queue_msk);
3125 const struct ieee80211_ops iwl_mvm_hw_ops = {
3126 .tx = iwl_mvm_mac_tx,
3127 .ampdu_action = iwl_mvm_mac_ampdu_action,
3128 .start = iwl_mvm_mac_start,
3129 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
3130 .stop = iwl_mvm_mac_stop,
3131 .add_interface = iwl_mvm_mac_add_interface,
3132 .remove_interface = iwl_mvm_mac_remove_interface,
3133 .config = iwl_mvm_mac_config,
3134 .prepare_multicast = iwl_mvm_prepare_multicast,
3135 .configure_filter = iwl_mvm_configure_filter,
3136 .bss_info_changed = iwl_mvm_bss_info_changed,
3137 .hw_scan = iwl_mvm_mac_hw_scan,
3138 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3139 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3140 .sta_state = iwl_mvm_mac_sta_state,
3141 .sta_notify = iwl_mvm_mac_sta_notify,
3142 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3143 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3144 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3145 .sta_rc_update = iwl_mvm_sta_rc_update,
3146 .conf_tx = iwl_mvm_mac_conf_tx,
3147 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3148 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3149 .flush = iwl_mvm_mac_flush,
3150 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3151 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3152 .set_key = iwl_mvm_mac_set_key,
3153 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3154 .remain_on_channel = iwl_mvm_roc,
3155 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3156 .add_chanctx = iwl_mvm_add_chanctx,
3157 .remove_chanctx = iwl_mvm_remove_chanctx,
3158 .change_chanctx = iwl_mvm_change_chanctx,
3159 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3160 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3161 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3163 .start_ap = iwl_mvm_start_ap_ibss,
3164 .stop_ap = iwl_mvm_stop_ap_ibss,
3165 .join_ibss = iwl_mvm_start_ap_ibss,
3166 .leave_ibss = iwl_mvm_stop_ap_ibss,
3168 .set_tim = iwl_mvm_set_tim,
3170 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3172 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3174 #ifdef CONFIG_PM_SLEEP
3176 .suspend = iwl_mvm_suspend,
3177 .resume = iwl_mvm_resume,
3178 .set_wakeup = iwl_mvm_set_wakeup,
3179 .set_rekey_data = iwl_mvm_set_rekey_data,
3180 #if IS_ENABLED(CONFIG_IPV6)
3181 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3183 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,