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 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
349 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
350 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
351 hw->chanctx_data_size = sizeof(u16);
353 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
354 BIT(NL80211_IFTYPE_P2P_CLIENT) |
355 BIT(NL80211_IFTYPE_AP) |
356 BIT(NL80211_IFTYPE_P2P_GO) |
357 BIT(NL80211_IFTYPE_P2P_DEVICE) |
358 BIT(NL80211_IFTYPE_ADHOC);
360 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
361 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
362 REGULATORY_DISABLE_BEACON_HINTS;
364 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
365 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
367 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
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;
377 /* Extract MAC address */
378 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
379 hw->wiphy->addresses = mvm->addresses;
380 hw->wiphy->n_addresses = 1;
382 /* Extract additional MAC addresses if available */
383 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
384 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
386 for (i = 1; i < num_mac; i++) {
387 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
389 mvm->addresses[i].addr[5]++;
390 hw->wiphy->n_addresses++;
393 iwl_mvm_reset_phy_ctxts(mvm);
395 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
397 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
399 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
400 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
401 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
402 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
403 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
404 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
406 hw->wiphy->hw_version = mvm->trans->hw_id;
408 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
409 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
411 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
413 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
414 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
415 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
416 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
417 /* we create the 802.11 header and zero length SSID IE. */
418 hw->wiphy->max_sched_scan_ie_len =
419 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
422 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
423 NL80211_FEATURE_LOW_PRIORITY_SCAN |
424 NL80211_FEATURE_P2P_GO_OPPPS |
425 NL80211_FEATURE_DYNAMIC_SMPS |
426 NL80211_FEATURE_STATIC_SMPS;
428 if (mvm->fw->ucode_capa.capa[0] &
429 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
430 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
431 if (mvm->fw->ucode_capa.capa[0] &
432 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
433 hw->wiphy->features |= NL80211_FEATURE_QUIET;
435 if (mvm->fw->ucode_capa.capa[0] &
436 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
437 hw->wiphy->features |=
438 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
440 if (mvm->fw->ucode_capa.capa[0] &
441 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
442 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
444 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
446 /* currently FW API supports only one optional cipher scheme */
447 if (mvm->fw->cs[0].cipher) {
448 mvm->hw->n_cipher_schemes = 1;
449 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
452 #ifdef CONFIG_PM_SLEEP
453 if (iwl_mvm_is_d0i3_supported(mvm) &&
454 device_can_wakeup(mvm->trans->dev)) {
455 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
456 hw->wiphy->wowlan = &mvm->wowlan;
457 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
458 mvm->trans->ops->d3_suspend &&
459 mvm->trans->ops->d3_resume &&
460 device_can_wakeup(mvm->trans->dev)) {
461 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
462 WIPHY_WOWLAN_DISCONNECT |
463 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
464 WIPHY_WOWLAN_RFKILL_RELEASE;
465 if (!iwlwifi_mod_params.sw_crypto)
466 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
467 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
468 WIPHY_WOWLAN_4WAY_HANDSHAKE;
470 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
471 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
472 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
473 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
474 hw->wiphy->wowlan = &mvm->wowlan;
478 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
479 /* assign default bcast filtering configuration */
480 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
483 ret = iwl_mvm_leds_init(mvm);
487 ret = ieee80211_register_hw(mvm->hw);
489 iwl_mvm_leds_exit(mvm);
494 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
495 struct ieee80211_sta *sta,
498 struct iwl_mvm_sta *mvmsta;
502 * double check the IN_D0I3 flag both before and after
503 * taking the spinlock, in order to prevent taking
504 * the spinlock when not needed.
506 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
509 spin_lock(&mvm->d0i3_tx_lock);
511 * testing the flag again ensures the skb dequeue
512 * loop (on d0i3 exit) hasn't run yet.
514 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
517 mvmsta = iwl_mvm_sta_from_mac80211(sta);
518 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
519 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
522 __skb_queue_tail(&mvm->d0i3_tx, skb);
523 ieee80211_stop_queues(mvm->hw);
526 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
527 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
531 spin_unlock(&mvm->d0i3_tx_lock);
535 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
536 struct ieee80211_tx_control *control,
539 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
540 struct ieee80211_sta *sta = control->sta;
541 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
542 struct ieee80211_hdr *hdr = (void *)skb->data;
544 if (iwl_mvm_is_radio_killed(mvm)) {
545 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
549 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
550 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
551 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
554 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
555 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
556 ieee80211_is_mgmt(hdr->frame_control) &&
557 !ieee80211_is_deauth(hdr->frame_control) &&
558 !ieee80211_is_disassoc(hdr->frame_control) &&
559 !ieee80211_is_action(hdr->frame_control)))
563 if (iwl_mvm_defer_tx(mvm, sta, skb))
565 if (iwl_mvm_tx_skb(mvm, skb, sta))
570 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
574 ieee80211_free_txskb(hw, skb);
577 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
579 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
584 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
586 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
588 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
591 /* enabled by default */
595 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
596 struct ieee80211_vif *vif,
597 enum ieee80211_ampdu_mlme_action action,
598 struct ieee80211_sta *sta, u16 tid,
599 u16 *ssn, u8 buf_size)
601 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
603 bool tx_agg_ref = false;
605 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
606 sta->addr, tid, action);
608 if (!(mvm->nvm_data->sku_cap_11n_enable))
611 /* return from D0i3 before starting a new Tx aggregation */
613 case IEEE80211_AMPDU_TX_START:
614 case IEEE80211_AMPDU_TX_STOP_CONT:
615 case IEEE80211_AMPDU_TX_STOP_FLUSH:
616 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
617 case IEEE80211_AMPDU_TX_OPERATIONAL:
619 * for tx start, wait synchronously until D0i3 exit to
620 * get the correct sequence number for the tid.
621 * additionally, some other ampdu actions use direct
622 * target access, which is not handled automatically
623 * by the trans layer (unlike commands), so wait for
624 * d0i3 exit in these cases as well.
626 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
636 mutex_lock(&mvm->mutex);
639 case IEEE80211_AMPDU_RX_START:
640 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
644 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
646 case IEEE80211_AMPDU_RX_STOP:
647 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
649 case IEEE80211_AMPDU_TX_START:
650 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
654 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
656 case IEEE80211_AMPDU_TX_STOP_CONT:
657 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
659 case IEEE80211_AMPDU_TX_STOP_FLUSH:
660 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
661 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
663 case IEEE80211_AMPDU_TX_OPERATIONAL:
664 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
671 mutex_unlock(&mvm->mutex);
674 * If the tid is marked as started, we won't use it for offloaded
675 * traffic on the next D0i3 entry. It's safe to unref.
678 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
683 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
684 struct ieee80211_vif *vif)
686 struct iwl_mvm *mvm = data;
687 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
689 mvmvif->uploaded = false;
690 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
692 /* does this make sense at all? */
695 spin_lock_bh(&mvm->time_event_lock);
696 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
697 spin_unlock_bh(&mvm->time_event_lock);
699 mvmvif->phy_ctxt = NULL;
700 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
703 static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
704 const void *data, size_t datalen)
706 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
708 ssize_t bytes_read_trans;
710 if (offset < dump_ptrs->op_mode_len) {
711 bytes_read = min_t(ssize_t, count,
712 dump_ptrs->op_mode_len - offset);
713 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
715 offset += bytes_read;
724 if (!dump_ptrs->trans_ptr)
727 offset -= dump_ptrs->op_mode_len;
728 bytes_read_trans = min_t(ssize_t, count,
729 dump_ptrs->trans_ptr->len - offset);
730 memcpy(buffer + bytes_read,
731 (u8 *)dump_ptrs->trans_ptr->data + offset,
734 return bytes_read + bytes_read_trans;
737 static void iwl_mvm_free_coredump(const void *data)
739 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
741 vfree(fw_error_dump->op_mode_ptr);
742 vfree(fw_error_dump->trans_ptr);
743 kfree(fw_error_dump);
746 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
748 struct iwl_fw_error_dump_file *dump_file;
749 struct iwl_fw_error_dump_data *dump_data;
750 struct iwl_fw_error_dump_info *dump_info;
751 struct iwl_mvm_dump_ptrs *fw_error_dump;
752 const struct fw_img *img;
753 u32 sram_len, sram_ofs;
754 u32 file_len, rxf_len;
758 lockdep_assert_held(&mvm->mutex);
760 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
764 img = &mvm->fw->img[mvm->cur_ucode];
765 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
766 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
768 /* reading buffer size */
769 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
770 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
772 /* the register holds the value divided by 128 */
773 rxf_len = rxf_len << 7;
775 file_len = sizeof(*dump_file) +
776 sizeof(*dump_data) * 3 +
781 dump_file = vzalloc(file_len);
783 kfree(fw_error_dump);
787 fw_error_dump->op_mode_ptr = dump_file;
789 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
790 dump_data = (void *)dump_file->data;
792 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
793 dump_data->len = cpu_to_le32(sizeof(*dump_info));
794 dump_info = (void *) dump_data->data;
795 dump_info->device_family =
796 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
797 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
798 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
799 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
800 sizeof(dump_info->fw_human_readable));
801 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
802 sizeof(dump_info->dev_human_readable));
803 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
804 sizeof(dump_info->bus_human_readable));
806 dump_data = iwl_fw_error_next_data(dump_data);
807 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
808 dump_data->len = cpu_to_le32(rxf_len);
810 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
811 u32 *rxf = (void *)dump_data->data;
814 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
815 iwl_trans_write_prph(mvm->trans,
816 RXF_LD_FENCE_OFFSET_ADDR,
818 rxf[i] = iwl_trans_read_prph(mvm->trans,
819 RXF_FIFO_RD_FENCE_ADDR);
821 iwl_trans_release_nic_access(mvm->trans, &flags);
824 dump_data = iwl_fw_error_next_data(dump_data);
825 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
826 dump_data->len = cpu_to_le32(sram_len);
827 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
830 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
831 fw_error_dump->op_mode_len = file_len;
832 if (fw_error_dump->trans_ptr)
833 file_len += fw_error_dump->trans_ptr->len;
834 dump_file->file_len = cpu_to_le32(file_len);
836 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
837 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
840 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
842 /* clear the D3 reconfig, we only need it to avoid dumping a
843 * firmware coredump on reconfiguration, we shouldn't do that
844 * on D3->D0 transition
846 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
847 iwl_mvm_fw_error_dump(mvm);
849 iwl_trans_stop_device(mvm->trans);
851 mvm->scan_status = IWL_MVM_SCAN_NONE;
852 mvm->ps_disabled = false;
853 mvm->calibrating = false;
855 /* just in case one was running */
856 ieee80211_remain_on_channel_expired(mvm->hw);
858 ieee80211_iterate_active_interfaces_atomic(
859 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
860 iwl_mvm_cleanup_iterator, mvm);
862 mvm->p2p_device_vif = NULL;
863 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
865 iwl_mvm_reset_phy_ctxts(mvm);
866 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
867 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
868 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
869 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
870 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
871 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
872 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
873 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
875 ieee80211_wake_queues(mvm->hw);
877 /* cleanup all stale references (scan, roc), but keep the
878 * ucode_down ref until reconfig is complete */
879 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
881 /* clear any stale d0i3 state */
882 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
885 mvm->rx_ba_sessions = 0;
888 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
892 lockdep_assert_held(&mvm->mutex);
894 /* Clean up some internal and mac80211 state on restart */
895 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
896 iwl_mvm_restart_cleanup(mvm);
898 ret = iwl_mvm_up(mvm);
900 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
901 /* Something went wrong - we need to finish some cleanup
902 * that normally iwl_mvm_mac_restart_complete() below
905 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
906 iwl_mvm_d0i3_enable_tx(mvm, NULL);
912 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
914 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
917 mutex_lock(&mvm->mutex);
918 ret = __iwl_mvm_mac_start(mvm);
919 mutex_unlock(&mvm->mutex);
924 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
928 mutex_lock(&mvm->mutex);
930 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
931 iwl_mvm_d0i3_enable_tx(mvm, NULL);
932 ret = iwl_mvm_update_quotas(mvm, NULL);
934 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
937 /* allow transport/FW low power modes */
938 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
940 mutex_unlock(&mvm->mutex);
944 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
945 enum ieee80211_reconfig_type reconfig_type)
947 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
949 switch (reconfig_type) {
950 case IEEE80211_RECONFIG_TYPE_RESTART:
951 iwl_mvm_restart_complete(mvm);
953 case IEEE80211_RECONFIG_TYPE_SUSPEND:
958 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
960 lockdep_assert_held(&mvm->mutex);
962 /* disallow low power states when the FW is down */
963 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
965 /* async_handlers_wk is now blocked */
968 * The work item could be running or queued if the
969 * ROC time event stops just as we get here.
971 cancel_work_sync(&mvm->roc_done_wk);
973 iwl_trans_stop_device(mvm->trans);
975 iwl_mvm_async_handlers_purge(mvm);
976 /* async_handlers_list is empty and will stay empty: HW is stopped */
978 /* the fw is stopped, the aux sta is dead: clean up driver state */
979 iwl_mvm_del_aux_sta(mvm);
981 mvm->ucode_loaded = false;
984 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
986 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
988 flush_work(&mvm->d0i3_exit_work);
989 flush_work(&mvm->async_handlers_wk);
990 flush_work(&mvm->fw_error_dump_wk);
992 mutex_lock(&mvm->mutex);
993 __iwl_mvm_mac_stop(mvm);
994 mutex_unlock(&mvm->mutex);
997 * The worker might have been waiting for the mutex, let it run and
998 * discover that its list is now empty.
1000 cancel_work_sync(&mvm->async_handlers_wk);
1003 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1007 lockdep_assert_held(&mvm->mutex);
1009 for (i = 0; i < NUM_PHY_CTX; i++)
1010 if (!mvm->phy_ctxts[i].ref)
1011 return &mvm->phy_ctxts[i];
1013 IWL_ERR(mvm, "No available PHY context\n");
1017 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1020 /* FW is in charge of regulatory enforcement */
1021 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1022 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1023 .pwr_restriction = cpu_to_le16(tx_power),
1026 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1027 sizeof(reduce_txpwr_cmd),
1031 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1032 struct ieee80211_vif *vif)
1034 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1035 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1039 * make sure D0i3 exit is completed, otherwise a target access
1040 * during tx queue configuration could be done when still in
1043 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1048 * Not much to do here. The stack will not allow interface
1049 * types or combinations that we didn't advertise, so we
1050 * don't really have to check the types.
1053 mutex_lock(&mvm->mutex);
1055 /* Allocate resources for the MAC context, and add it to the fw */
1056 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1060 /* Counting number of interfaces is needed for legacy PM */
1061 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1065 * The AP binding flow can be done only after the beacon
1066 * template is configured (which happens only in the mac80211
1067 * start_ap() flow), and adding the broadcast station can happen
1068 * only after the binding.
1069 * In addition, since modifying the MAC before adding a bcast
1070 * station is not allowed by the FW, delay the adding of MAC context to
1071 * the point where we can also add the bcast station.
1072 * In short: there's not much we can do at this point, other than
1073 * allocating resources :)
1075 if (vif->type == NL80211_IFTYPE_AP ||
1076 vif->type == NL80211_IFTYPE_ADHOC) {
1077 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1079 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1083 iwl_mvm_vif_dbgfs_register(mvm, vif);
1087 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1091 ret = iwl_mvm_power_update_mac(mvm);
1095 /* beacon filtering */
1096 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1098 goto out_remove_mac;
1100 if (!mvm->bf_allowed_vif &&
1101 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1102 mvm->bf_allowed_vif = mvmvif;
1103 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1104 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1108 * P2P_DEVICE interface does not have a channel context assigned to it,
1109 * so a dedicated PHY context is allocated to it and the corresponding
1110 * MAC context is bound to it at this stage.
1112 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1114 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1115 if (!mvmvif->phy_ctxt) {
1120 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1121 ret = iwl_mvm_binding_add_vif(mvm, vif);
1125 ret = iwl_mvm_add_bcast_sta(mvm, vif);
1129 /* Save a pointer to p2p device vif, so it can later be used to
1130 * update the p2p device MAC when a GO is started/stopped */
1131 mvm->p2p_device_vif = vif;
1134 iwl_mvm_vif_dbgfs_register(mvm, vif);
1138 iwl_mvm_binding_remove_vif(mvm, vif);
1140 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1142 if (mvm->bf_allowed_vif == mvmvif) {
1143 mvm->bf_allowed_vif = NULL;
1144 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1145 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1148 mvmvif->phy_ctxt = NULL;
1149 iwl_mvm_mac_ctxt_remove(mvm, vif);
1151 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1154 iwl_mvm_mac_ctxt_release(mvm, vif);
1156 mutex_unlock(&mvm->mutex);
1158 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1163 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1164 struct ieee80211_vif *vif)
1166 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
1169 mutex_lock(&mvm->mutex);
1170 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1171 mutex_unlock(&mvm->mutex);
1174 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1176 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1177 * We assume here that all the packets sent to the OFFCHANNEL
1178 * queue are sent in ROC session.
1180 flush_work(&mvm->roc_done_wk);
1183 * By now, all the AC queues are empty. The AGG queues are
1184 * empty too. We already got all the Tx responses for all the
1185 * packets in the queues. The drain work can have been
1186 * triggered. Flush it.
1188 flush_work(&mvm->sta_drained_wk);
1192 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1193 struct ieee80211_vif *vif)
1195 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1196 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1198 iwl_mvm_prepare_mac_removal(mvm, vif);
1200 mutex_lock(&mvm->mutex);
1202 if (mvm->bf_allowed_vif == mvmvif) {
1203 mvm->bf_allowed_vif = NULL;
1204 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1205 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1208 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1211 * For AP/GO interface, the tear down of the resources allocated to the
1212 * interface is be handled as part of the stop_ap flow.
1214 if (vif->type == NL80211_IFTYPE_AP ||
1215 vif->type == NL80211_IFTYPE_ADHOC) {
1216 #ifdef CONFIG_NL80211_TESTMODE
1217 if (vif == mvm->noa_vif) {
1218 mvm->noa_vif = NULL;
1219 mvm->noa_duration = 0;
1222 iwl_mvm_dealloc_bcast_sta(mvm, vif);
1226 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1227 mvm->p2p_device_vif = NULL;
1228 iwl_mvm_rm_bcast_sta(mvm, vif);
1229 iwl_mvm_binding_remove_vif(mvm, vif);
1230 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1231 mvmvif->phy_ctxt = NULL;
1234 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1237 iwl_mvm_power_update_mac(mvm);
1238 iwl_mvm_mac_ctxt_remove(mvm, vif);
1241 iwl_mvm_mac_ctxt_release(mvm, vif);
1242 mutex_unlock(&mvm->mutex);
1245 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1250 struct iwl_mvm_mc_iter_data {
1251 struct iwl_mvm *mvm;
1255 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1256 struct ieee80211_vif *vif)
1258 struct iwl_mvm_mc_iter_data *data = _data;
1259 struct iwl_mvm *mvm = data->mvm;
1260 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1263 /* if we don't have free ports, mcast frames will be dropped */
1264 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1267 if (vif->type != NL80211_IFTYPE_STATION ||
1268 !vif->bss_conf.assoc)
1271 cmd->port_id = data->port_id++;
1272 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1273 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1275 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1277 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1280 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1282 struct iwl_mvm_mc_iter_data iter_data = {
1286 lockdep_assert_held(&mvm->mutex);
1288 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1291 ieee80211_iterate_active_interfaces_atomic(
1292 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1293 iwl_mvm_mc_iface_iterator, &iter_data);
1296 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1297 struct netdev_hw_addr_list *mc_list)
1299 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1300 struct iwl_mcast_filter_cmd *cmd;
1301 struct netdev_hw_addr *addr;
1306 addr_count = netdev_hw_addr_list_count(mc_list);
1307 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1308 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1312 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1313 cmd = kzalloc(len, GFP_ATOMIC);
1319 return (u64)(unsigned long)cmd;
1322 netdev_hw_addr_list_for_each(addr, mc_list) {
1323 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1324 cmd->count, addr->addr);
1325 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1326 addr->addr, ETH_ALEN);
1330 return (u64)(unsigned long)cmd;
1333 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1334 unsigned int changed_flags,
1335 unsigned int *total_flags,
1338 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1339 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1341 mutex_lock(&mvm->mutex);
1343 /* replace previous configuration */
1344 kfree(mvm->mcast_filter_cmd);
1345 mvm->mcast_filter_cmd = cmd;
1350 iwl_mvm_recalc_multicast(mvm);
1352 mutex_unlock(&mvm->mutex);
1356 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1357 struct iwl_bcast_iter_data {
1358 struct iwl_mvm *mvm;
1359 struct iwl_bcast_filter_cmd *cmd;
1364 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1365 const struct iwl_fw_bcast_filter *in_filter,
1366 struct iwl_fw_bcast_filter *out_filter)
1368 struct iwl_fw_bcast_filter_attr *attr;
1371 memcpy(out_filter, in_filter, sizeof(*out_filter));
1373 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1374 attr = &out_filter->attrs[i];
1379 switch (attr->reserved1) {
1380 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1381 if (vif->bss_conf.arp_addr_cnt != 1) {
1386 attr->val = vif->bss_conf.arp_addr_list[0];
1388 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1389 attr->val = *(__be32 *)&vif->addr[2];
1394 attr->reserved1 = 0;
1395 out_filter->num_attrs++;
1399 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1400 struct ieee80211_vif *vif)
1402 struct iwl_bcast_iter_data *data = _data;
1403 struct iwl_mvm *mvm = data->mvm;
1404 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1405 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1406 struct iwl_fw_bcast_mac *bcast_mac;
1409 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1412 bcast_mac = &cmd->macs[mvmvif->id];
1415 * enable filtering only for associated stations, but not for P2P
1418 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1419 !vif->bss_conf.assoc)
1422 bcast_mac->default_discard = 1;
1424 /* copy all configured filters */
1425 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1427 * Make sure we don't exceed our filters limit.
1428 * if there is still a valid filter to be configured,
1429 * be on the safe side and just allow bcast for this mac.
1431 if (WARN_ON_ONCE(data->current_filter >=
1432 ARRAY_SIZE(cmd->filters))) {
1433 bcast_mac->default_discard = 0;
1434 bcast_mac->attached_filters = 0;
1438 iwl_mvm_set_bcast_filter(vif,
1439 &mvm->bcast_filters[i],
1440 &cmd->filters[data->current_filter]);
1442 /* skip current filter if it contains no attributes */
1443 if (!cmd->filters[data->current_filter].num_attrs)
1446 /* attach the filter to current mac */
1447 bcast_mac->attached_filters |=
1448 cpu_to_le16(BIT(data->current_filter));
1450 data->current_filter++;
1454 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1455 struct iwl_bcast_filter_cmd *cmd)
1457 struct iwl_bcast_iter_data iter_data = {
1462 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1465 memset(cmd, 0, sizeof(*cmd));
1466 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1467 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1469 #ifdef CONFIG_IWLWIFI_DEBUGFS
1470 /* use debugfs filters/macs if override is configured */
1471 if (mvm->dbgfs_bcast_filtering.override) {
1472 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1473 sizeof(cmd->filters));
1474 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1480 /* if no filters are configured, do nothing */
1481 if (!mvm->bcast_filters)
1484 /* configure and attach these filters for each associated sta vif */
1485 ieee80211_iterate_active_interfaces(
1486 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1487 iwl_mvm_bcast_filter_iterator, &iter_data);
1491 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1492 struct ieee80211_vif *vif)
1494 struct iwl_bcast_filter_cmd cmd;
1496 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1499 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1502 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1506 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1507 struct ieee80211_vif *vif)
1513 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1514 struct ieee80211_vif *vif,
1515 struct ieee80211_bss_conf *bss_conf,
1518 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1522 * Re-calculate the tsf id, as the master-slave relations depend on the
1523 * beacon interval, which was not known when the station interface was
1526 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1527 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1530 * If we're not associated yet, take the (new) BSSID before associating
1531 * so the firmware knows. If we're already associated, then use the old
1532 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1533 * branch for disassociation below.
1535 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1536 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1538 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
1540 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1542 /* after sending it once, adopt mac80211 data */
1543 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1544 mvmvif->associated = bss_conf->assoc;
1546 if (changes & BSS_CHANGED_ASSOC) {
1547 if (bss_conf->assoc) {
1548 /* add quota for this interface */
1549 ret = iwl_mvm_update_quotas(mvm, NULL);
1551 IWL_ERR(mvm, "failed to update quotas\n");
1555 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1558 * If we're restarting then the firmware will
1559 * obviously have lost synchronisation with
1560 * the AP. It will attempt to synchronise by
1561 * itself, but we can make it more reliable by
1562 * scheduling a session protection time event.
1564 * The firmware needs to receive a beacon to
1565 * catch up with synchronisation, use 110% of
1566 * the beacon interval.
1568 * Set a large maximum delay to allow for more
1569 * than a single interface.
1571 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1572 iwl_mvm_protect_session(mvm, vif, dur, dur,
1576 iwl_mvm_sf_update(mvm, vif, false);
1577 iwl_mvm_power_vif_assoc(mvm, vif);
1579 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1580 iwl_mvm_update_smps(mvm, vif,
1581 IWL_MVM_SMPS_REQ_PROT,
1582 IEEE80211_SMPS_DYNAMIC);
1584 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1586 * If update fails - SF might be running in associated
1587 * mode while disassociated - which is forbidden.
1589 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1590 "Failed to update SF upon disassociation\n");
1592 /* remove AP station now that the MAC is unassoc */
1593 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1595 IWL_ERR(mvm, "failed to remove AP station\n");
1597 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1598 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1599 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1600 /* remove quota for this interface */
1601 ret = iwl_mvm_update_quotas(mvm, NULL);
1603 IWL_ERR(mvm, "failed to update quotas\n");
1606 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1608 /* this will take the cleared BSSID from bss_conf */
1609 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1612 "failed to update MAC %pM (clear after unassoc)\n",
1616 iwl_mvm_recalc_multicast(mvm);
1617 iwl_mvm_configure_bcast_filter(mvm, vif);
1619 /* reset rssi values */
1620 mvmvif->bf_data.ave_beacon_signal = 0;
1622 iwl_mvm_bt_coex_vif_change(mvm);
1623 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1624 IEEE80211_SMPS_AUTOMATIC);
1625 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1627 * We received a beacon _after_ association so
1628 * remove the session protection.
1630 iwl_mvm_remove_time_event(mvm, mvmvif,
1631 &mvmvif->time_event_data);
1634 if (changes & BSS_CHANGED_BEACON_INFO) {
1635 iwl_mvm_sf_update(mvm, vif, false);
1636 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1639 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1640 ret = iwl_mvm_power_update_mac(mvm);
1642 IWL_ERR(mvm, "failed to update power mode\n");
1645 if (changes & BSS_CHANGED_TXPOWER) {
1646 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1648 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1651 if (changes & BSS_CHANGED_CQM) {
1652 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1653 /* reset cqm events tracking */
1654 mvmvif->bf_data.last_cqm_event = 0;
1655 if (mvmvif->bf_data.bf_enabled) {
1656 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1659 "failed to update CQM thresholds\n");
1663 if (changes & BSS_CHANGED_ARP_FILTER) {
1664 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1665 iwl_mvm_configure_bcast_filter(mvm, vif);
1669 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1670 struct ieee80211_vif *vif)
1672 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1673 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1677 * iwl_mvm_mac_ctxt_add() might read directly from the device
1678 * (the system time), so make sure it is available.
1680 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1684 mutex_lock(&mvm->mutex);
1686 /* Send the beacon template */
1687 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1692 * Re-calculate the tsf id, as the master-slave relations depend on the
1693 * beacon interval, which was not known when the AP interface was added.
1695 if (vif->type == NL80211_IFTYPE_AP)
1696 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1698 /* Add the mac context */
1699 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1703 /* Perform the binding */
1704 ret = iwl_mvm_binding_add_vif(mvm, vif);
1708 /* Send the bcast station. At this stage the TBTT and DTIM time events
1709 * are added and applied to the scheduler */
1710 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
1714 /* must be set before quota calculations */
1715 mvmvif->ap_ibss_active = true;
1717 /* power updated needs to be done before quotas */
1718 iwl_mvm_power_update_mac(mvm);
1720 ret = iwl_mvm_update_quotas(mvm, NULL);
1722 goto out_quota_failed;
1724 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1725 if (vif->p2p && mvm->p2p_device_vif)
1726 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1728 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1730 iwl_mvm_bt_coex_vif_change(mvm);
1732 /* we don't support TDLS during DCM */
1733 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1734 iwl_mvm_teardown_tdls_peers(mvm);
1736 mutex_unlock(&mvm->mutex);
1740 iwl_mvm_power_update_mac(mvm);
1741 mvmvif->ap_ibss_active = false;
1742 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1744 iwl_mvm_binding_remove_vif(mvm, vif);
1746 iwl_mvm_mac_ctxt_remove(mvm, vif);
1748 mutex_unlock(&mvm->mutex);
1749 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
1753 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1754 struct ieee80211_vif *vif)
1756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1757 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1759 iwl_mvm_prepare_mac_removal(mvm, vif);
1761 mutex_lock(&mvm->mutex);
1763 /* Handle AP stop while in CSA */
1764 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1765 iwl_mvm_remove_time_event(mvm, mvmvif,
1766 &mvmvif->time_event_data);
1767 RCU_INIT_POINTER(mvm->csa_vif, NULL);
1770 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1771 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1772 mvm->csa_tx_block_bcn_timeout = 0;
1775 mvmvif->ap_ibss_active = false;
1776 mvm->ap_last_beacon_gp2 = 0;
1778 iwl_mvm_bt_coex_vif_change(mvm);
1780 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1782 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1783 if (vif->p2p && mvm->p2p_device_vif)
1784 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
1786 iwl_mvm_update_quotas(mvm, NULL);
1787 iwl_mvm_send_rm_bcast_sta(mvm, vif);
1788 iwl_mvm_binding_remove_vif(mvm, vif);
1790 iwl_mvm_power_update_mac(mvm);
1792 iwl_mvm_mac_ctxt_remove(mvm, vif);
1794 mutex_unlock(&mvm->mutex);
1798 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1799 struct ieee80211_vif *vif,
1800 struct ieee80211_bss_conf *bss_conf,
1803 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1805 /* Changes will be applied when the AP/IBSS is started */
1806 if (!mvmvif->ap_ibss_active)
1809 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1810 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
1811 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
1812 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1814 /* Need to send a new beacon template to the FW */
1815 if (changes & BSS_CHANGED_BEACON &&
1816 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1817 IWL_WARN(mvm, "Failed updating beacon data\n");
1819 if (changes & BSS_CHANGED_TXPOWER) {
1820 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1822 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1827 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1828 struct ieee80211_vif *vif,
1829 struct ieee80211_bss_conf *bss_conf,
1832 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1835 * iwl_mvm_bss_info_changed_station() might call
1836 * iwl_mvm_protect_session(), which reads directly from
1837 * the device (the system time), so make sure it is available.
1839 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1842 mutex_lock(&mvm->mutex);
1844 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1845 iwl_mvm_scan_offload_stop(mvm, true);
1847 switch (vif->type) {
1848 case NL80211_IFTYPE_STATION:
1849 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1851 case NL80211_IFTYPE_AP:
1852 case NL80211_IFTYPE_ADHOC:
1853 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1856 /* shouldn't happen */
1860 mutex_unlock(&mvm->mutex);
1861 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
1864 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1865 enum iwl_scan_status scan_type)
1868 bool wait_for_handlers = false;
1870 mutex_lock(&mvm->mutex);
1872 if (mvm->scan_status != scan_type) {
1874 /* make sure there are no pending notifications */
1875 wait_for_handlers = true;
1879 switch (scan_type) {
1880 case IWL_MVM_SCAN_SCHED:
1881 ret = iwl_mvm_scan_offload_stop(mvm, true);
1883 case IWL_MVM_SCAN_OS:
1884 ret = iwl_mvm_cancel_scan(mvm);
1886 case IWL_MVM_SCAN_NONE:
1895 wait_for_handlers = true;
1897 mutex_unlock(&mvm->mutex);
1899 /* make sure we consume the completion notification */
1900 if (wait_for_handlers)
1901 iwl_mvm_wait_for_async_handlers(mvm);
1905 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1906 struct ieee80211_vif *vif,
1907 struct ieee80211_scan_request *hw_req)
1909 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1910 struct cfg80211_scan_request *req = &hw_req->req;
1913 if (req->n_channels == 0 ||
1914 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
1917 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1921 mutex_lock(&mvm->mutex);
1923 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1928 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1930 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1931 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
1933 ret = iwl_mvm_scan_request(mvm, vif, req);
1936 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1938 mutex_unlock(&mvm->mutex);
1942 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1943 struct ieee80211_vif *vif)
1945 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1947 mutex_lock(&mvm->mutex);
1949 iwl_mvm_cancel_scan(mvm);
1951 mutex_unlock(&mvm->mutex);
1955 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1956 struct ieee80211_sta *sta, u16 tids,
1958 enum ieee80211_frame_release_type reason,
1961 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1963 /* Called when we need to transmit (a) frame(s) from mac80211 */
1965 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1966 tids, more_data, false);
1970 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1971 struct ieee80211_sta *sta, u16 tids,
1973 enum ieee80211_frame_release_type reason,
1976 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1978 /* Called when we need to transmit (a) frame(s) from agg queue */
1980 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1981 tids, more_data, true);
1984 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1985 struct ieee80211_vif *vif,
1986 enum sta_notify_cmd cmd,
1987 struct ieee80211_sta *sta)
1989 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1990 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1994 case STA_NOTIFY_SLEEP:
1995 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1996 ieee80211_sta_block_awake(hw, sta, true);
1997 spin_lock_bh(&mvmsta->lock);
1998 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1999 struct iwl_mvm_tid_data *tid_data;
2001 tid_data = &mvmsta->tid_data[tid];
2002 if (tid_data->state != IWL_AGG_ON &&
2003 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2005 if (iwl_mvm_tid_queued(tid_data) == 0)
2007 ieee80211_sta_set_buffered(sta, tid, true);
2009 spin_unlock_bh(&mvmsta->lock);
2011 * The fw updates the STA to be asleep. Tx packets on the Tx
2012 * queues to this station will not be transmitted. The fw will
2013 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2016 case STA_NOTIFY_AWAKE:
2017 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
2019 iwl_mvm_sta_modify_ps_wake(mvm, sta);
2026 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2027 struct ieee80211_vif *vif,
2028 struct ieee80211_sta *sta)
2030 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2031 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2034 * This is called before mac80211 does RCU synchronisation,
2035 * so here we already invalidate our internal RCU-protected
2036 * station pointer. The rest of the code will thus no longer
2037 * be able to find the station this way, and we don't rely
2038 * on further RCU synchronisation after the sta_state()
2039 * callback deleted the station.
2041 mutex_lock(&mvm->mutex);
2042 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2043 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2045 mutex_unlock(&mvm->mutex);
2048 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2049 struct ieee80211_vif *vif,
2050 struct ieee80211_sta *sta,
2051 enum ieee80211_sta_state old_state,
2052 enum ieee80211_sta_state new_state)
2054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2055 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2058 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2059 sta->addr, old_state, new_state);
2061 /* this would be a mac80211 bug ... but don't crash */
2062 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2065 /* if a STA is being removed, reuse its ID */
2066 flush_work(&mvm->sta_drained_wk);
2068 mutex_lock(&mvm->mutex);
2069 if (old_state == IEEE80211_STA_NOTEXIST &&
2070 new_state == IEEE80211_STA_NONE) {
2072 * Firmware bug - it'll crash if the beacon interval is less
2073 * than 16. We can't avoid connecting at all, so refuse the
2074 * station state change, this will cause mac80211 to abandon
2075 * attempts to connect to this AP, and eventually wpa_s will
2076 * blacklist the AP...
2078 if (vif->type == NL80211_IFTYPE_STATION &&
2079 vif->bss_conf.beacon_int < 16) {
2081 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2082 sta->addr, vif->bss_conf.beacon_int);
2089 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2090 IWL_MVM_TDLS_STA_COUNT ||
2091 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2092 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2097 ret = iwl_mvm_add_sta(mvm, vif, sta);
2098 if (sta->tdls && ret == 0)
2099 iwl_mvm_recalc_tdls_state(mvm, vif, true);
2100 } else if (old_state == IEEE80211_STA_NONE &&
2101 new_state == IEEE80211_STA_AUTH) {
2103 * EBS may be disabled due to previous failures reported by FW.
2104 * Reset EBS status here assuming environment has been changed.
2106 mvm->last_ebs_successful = true;
2108 } else if (old_state == IEEE80211_STA_AUTH &&
2109 new_state == IEEE80211_STA_ASSOC) {
2110 ret = iwl_mvm_update_sta(mvm, vif, sta);
2112 iwl_mvm_rs_rate_init(mvm, sta,
2113 mvmvif->phy_ctxt->channel->band,
2115 } else if (old_state == IEEE80211_STA_ASSOC &&
2116 new_state == IEEE80211_STA_AUTHORIZED) {
2118 /* we don't support TDLS during DCM */
2119 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2120 iwl_mvm_teardown_tdls_peers(mvm);
2122 /* enable beacon filtering */
2123 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2125 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2126 new_state == IEEE80211_STA_ASSOC) {
2127 /* disable beacon filtering */
2128 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
2130 } else if (old_state == IEEE80211_STA_ASSOC &&
2131 new_state == IEEE80211_STA_AUTH) {
2133 } else if (old_state == IEEE80211_STA_AUTH &&
2134 new_state == IEEE80211_STA_NONE) {
2136 } else if (old_state == IEEE80211_STA_NONE &&
2137 new_state == IEEE80211_STA_NOTEXIST) {
2138 ret = iwl_mvm_rm_sta(mvm, vif, sta);
2140 iwl_mvm_recalc_tdls_state(mvm, vif, false);
2145 mutex_unlock(&mvm->mutex);
2150 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2154 mvm->rts_threshold = value;
2159 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2160 struct ieee80211_vif *vif,
2161 struct ieee80211_sta *sta, u32 changed)
2163 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2165 if (vif->type == NL80211_IFTYPE_STATION &&
2166 changed & IEEE80211_RC_NSS_CHANGED)
2167 iwl_mvm_sf_update(mvm, vif, false);
2170 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2171 struct ieee80211_vif *vif, u16 ac,
2172 const struct ieee80211_tx_queue_params *params)
2174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2175 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2177 mvmvif->queue_params[ac] = *params;
2180 * No need to update right away, we'll get BSS_CHANGED_QOS
2181 * The exception is P2P_DEVICE interface which needs immediate update.
2183 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2186 mutex_lock(&mvm->mutex);
2187 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2188 mutex_unlock(&mvm->mutex);
2194 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2195 struct ieee80211_vif *vif)
2197 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2198 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2199 200 + vif->bss_conf.beacon_int);
2200 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2201 100 + vif->bss_conf.beacon_int);
2203 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2207 * iwl_mvm_protect_session() reads directly from the device
2208 * (the system time), so make sure it is available.
2210 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2213 mutex_lock(&mvm->mutex);
2214 /* Try really hard to protect the session and hear a beacon */
2215 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
2216 mutex_unlock(&mvm->mutex);
2218 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
2221 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2222 struct ieee80211_vif *vif,
2223 struct cfg80211_sched_scan_request *req,
2224 struct ieee80211_scan_ies *ies)
2226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2229 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2233 mutex_lock(&mvm->mutex);
2235 /* Newest FW fixes sched scan while connected on another interface */
2236 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2237 if (!vif->bss_conf.idle) {
2241 } else if (!iwl_mvm_is_idle(mvm)) {
2246 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
2251 mvm->scan_status = IWL_MVM_SCAN_SCHED;
2253 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
2255 mvm->scan_status = IWL_MVM_SCAN_NONE;
2257 mutex_unlock(&mvm->mutex);
2261 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2262 struct ieee80211_vif *vif)
2264 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2267 mutex_lock(&mvm->mutex);
2268 ret = iwl_mvm_scan_offload_stop(mvm, false);
2269 mutex_unlock(&mvm->mutex);
2270 iwl_mvm_wait_for_async_handlers(mvm);
2275 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2276 enum set_key_cmd cmd,
2277 struct ieee80211_vif *vif,
2278 struct ieee80211_sta *sta,
2279 struct ieee80211_key_conf *key)
2281 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2284 if (iwlwifi_mod_params.sw_crypto) {
2285 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2289 switch (key->cipher) {
2290 case WLAN_CIPHER_SUITE_TKIP:
2291 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2293 case WLAN_CIPHER_SUITE_CCMP:
2294 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2296 case WLAN_CIPHER_SUITE_AES_CMAC:
2297 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2299 case WLAN_CIPHER_SUITE_WEP40:
2300 case WLAN_CIPHER_SUITE_WEP104:
2302 * Support for TX only, at least for now, so accept
2303 * the key and do nothing else. Then mac80211 will
2304 * pass it for TX but we don't have to use it for RX.
2308 /* currently FW supports only one optional cipher scheme */
2309 if (hw->n_cipher_schemes &&
2310 hw->cipher_schemes->cipher == key->cipher)
2311 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2316 mutex_lock(&mvm->mutex);
2320 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2321 vif->type == NL80211_IFTYPE_AP) && !sta) {
2323 * GTK on AP interface is a TX-only key, return 0;
2324 * on IBSS they're per-station and because we're lazy
2325 * we don't support them for RX, so do the same.
2328 key->hw_key_idx = STA_KEY_IDX_INVALID;
2332 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2333 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2335 IWL_WARN(mvm, "set key failed\n");
2337 * can't add key for RX, but we don't need it
2338 * in the device for TX so still return 0
2340 key->hw_key_idx = STA_KEY_IDX_INVALID;
2346 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2351 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2352 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2358 mutex_unlock(&mvm->mutex);
2362 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2363 struct ieee80211_vif *vif,
2364 struct ieee80211_key_conf *keyconf,
2365 struct ieee80211_sta *sta,
2366 u32 iv32, u16 *phase1key)
2368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2370 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2373 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2377 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2378 struct iwl_rx_packet *pkt, void *data)
2380 struct iwl_mvm *mvm =
2381 container_of(notif_wait, struct iwl_mvm, notif_wait);
2382 struct iwl_hs20_roc_res *resp;
2383 int resp_len = iwl_rx_packet_payload_len(pkt);
2384 struct iwl_mvm_time_event_data *te_data = data;
2386 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2389 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2390 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2394 resp = (void *)pkt->data;
2397 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2398 resp->status, resp->event_unique_id);
2400 te_data->uid = le32_to_cpu(resp->event_unique_id);
2401 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2404 spin_lock_bh(&mvm->time_event_lock);
2405 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2406 spin_unlock_bh(&mvm->time_event_lock);
2411 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2412 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2413 struct ieee80211_channel *channel,
2414 struct ieee80211_vif *vif,
2417 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2418 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2419 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2420 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2421 struct iwl_notification_wait wait_time_event;
2422 struct iwl_hs20_roc_req aux_roc_req = {
2423 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2425 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2426 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2427 /* Set the channel info data */
2428 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2429 PHY_BAND_24 : PHY_BAND_5,
2430 .channel_info.channel = channel->hw_value,
2431 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2432 /* Set the time and duration */
2433 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2434 .apply_time_max_delay =
2435 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2436 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2439 /* Set the node address */
2440 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2442 lockdep_assert_held(&mvm->mutex);
2444 spin_lock_bh(&mvm->time_event_lock);
2446 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2447 spin_unlock_bh(&mvm->time_event_lock);
2452 te_data->duration = duration;
2453 te_data->id = HOT_SPOT_CMD;
2455 spin_unlock_bh(&mvm->time_event_lock);
2458 * Use a notification wait, which really just processes the
2459 * command response and doesn't wait for anything, in order
2460 * to be able to process the response and get the UID inside
2461 * the RX path. Using CMD_WANT_SKB doesn't work because it
2462 * stores the buffer and then wakes up this thread, by which
2463 * time another notification (that the time event started)
2464 * might already be processed unsuccessfully.
2466 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2467 time_event_response,
2468 ARRAY_SIZE(time_event_response),
2469 iwl_mvm_rx_aux_roc, te_data);
2471 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2475 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2476 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2480 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2481 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2482 /* should never fail */
2487 spin_lock_bh(&mvm->time_event_lock);
2488 iwl_mvm_te_clear_data(mvm, te_data);
2489 spin_unlock_bh(&mvm->time_event_lock);
2495 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2496 struct ieee80211_vif *vif,
2497 struct ieee80211_channel *channel,
2499 enum ieee80211_roc_type type)
2501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2502 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2503 struct cfg80211_chan_def chandef;
2504 struct iwl_mvm_phy_ctxt *phy_ctxt;
2507 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2510 mutex_lock(&mvm->mutex);
2512 switch (vif->type) {
2513 case NL80211_IFTYPE_STATION:
2514 /* Use aux roc framework (HS20) */
2515 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2518 case NL80211_IFTYPE_P2P_DEVICE:
2522 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
2527 for (i = 0; i < NUM_PHY_CTX; i++) {
2528 phy_ctxt = &mvm->phy_ctxts[i];
2529 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2532 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2534 * Unbind the P2P_DEVICE from the current PHY context,
2535 * and if the PHY context is not used remove it.
2537 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2538 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2541 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2543 /* Bind the P2P_DEVICE to the current PHY Context */
2544 mvmvif->phy_ctxt = phy_ctxt;
2546 ret = iwl_mvm_binding_add_vif(mvm, vif);
2547 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2550 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2551 goto schedule_time_event;
2555 /* Need to update the PHY context only if the ROC channel changed */
2556 if (channel == mvmvif->phy_ctxt->channel)
2557 goto schedule_time_event;
2559 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2562 * Change the PHY context configuration as it is currently referenced
2563 * only by the P2P Device MAC
2565 if (mvmvif->phy_ctxt->ref == 1) {
2566 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2572 * The PHY context is shared with other MACs. Need to remove the
2573 * P2P Device from the binding, allocate an new PHY context and
2574 * create a new binding
2576 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2582 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2585 IWL_ERR(mvm, "Failed to change PHY context\n");
2589 /* Unbind the P2P_DEVICE from the current PHY context */
2590 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2591 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2594 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2596 /* Bind the P2P_DEVICE to the new allocated PHY context */
2597 mvmvif->phy_ctxt = phy_ctxt;
2599 ret = iwl_mvm_binding_add_vif(mvm, vif);
2600 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2603 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2606 schedule_time_event:
2607 /* Schedule the time events */
2608 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2611 mutex_unlock(&mvm->mutex);
2612 IWL_DEBUG_MAC80211(mvm, "leave\n");
2616 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2618 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2620 IWL_DEBUG_MAC80211(mvm, "enter\n");
2622 mutex_lock(&mvm->mutex);
2623 iwl_mvm_stop_p2p_roc(mvm);
2624 mutex_unlock(&mvm->mutex);
2626 IWL_DEBUG_MAC80211(mvm, "leave\n");
2630 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2631 struct ieee80211_chanctx_conf *ctx)
2633 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2634 struct iwl_mvm_phy_ctxt *phy_ctxt;
2637 lockdep_assert_held(&mvm->mutex);
2639 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2641 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2647 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2648 ctx->rx_chains_static,
2649 ctx->rx_chains_dynamic);
2651 IWL_ERR(mvm, "Failed to add PHY context\n");
2655 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2656 *phy_ctxt_id = phy_ctxt->id;
2661 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2662 struct ieee80211_chanctx_conf *ctx)
2664 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2667 mutex_lock(&mvm->mutex);
2668 ret = __iwl_mvm_add_chanctx(mvm, ctx);
2669 mutex_unlock(&mvm->mutex);
2674 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2675 struct ieee80211_chanctx_conf *ctx)
2677 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2678 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2680 lockdep_assert_held(&mvm->mutex);
2682 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2685 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2686 struct ieee80211_chanctx_conf *ctx)
2688 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2690 mutex_lock(&mvm->mutex);
2691 __iwl_mvm_remove_chanctx(mvm, ctx);
2692 mutex_unlock(&mvm->mutex);
2695 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2696 struct ieee80211_chanctx_conf *ctx,
2699 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2700 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2701 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2703 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2704 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2705 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2706 IEEE80211_CHANCTX_CHANGE_RADAR |
2707 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2708 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2709 phy_ctxt->ref, changed))
2712 mutex_lock(&mvm->mutex);
2713 iwl_mvm_bt_coex_vif_change(mvm);
2714 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2715 ctx->rx_chains_static,
2716 ctx->rx_chains_dynamic);
2717 mutex_unlock(&mvm->mutex);
2720 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2721 struct ieee80211_vif *vif,
2722 struct ieee80211_chanctx_conf *ctx,
2723 bool switching_chanctx)
2725 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2726 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2727 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2730 lockdep_assert_held(&mvm->mutex);
2732 mvmvif->phy_ctxt = phy_ctxt;
2734 switch (vif->type) {
2735 case NL80211_IFTYPE_AP:
2736 /* Unless it's a CSA flow we have nothing to do here */
2737 if (vif->csa_active) {
2738 mvmvif->ap_ibss_active = true;
2741 case NL80211_IFTYPE_ADHOC:
2743 * The AP binding flow is handled as part of the start_ap flow
2744 * (in bss_info_changed), similarly for IBSS.
2748 case NL80211_IFTYPE_STATION:
2750 case NL80211_IFTYPE_MONITOR:
2751 /* always disable PS when a monitor interface is active */
2752 mvmvif->ps_disabled = true;
2759 ret = iwl_mvm_binding_add_vif(mvm, vif);
2764 * Power state must be updated before quotas,
2765 * otherwise fw will complain.
2767 iwl_mvm_power_update_mac(mvm);
2769 /* Setting the quota at this stage is only required for monitor
2770 * interfaces. For the other types, the bss_info changed flow
2771 * will handle quota settings.
2773 if (vif->type == NL80211_IFTYPE_MONITOR) {
2774 mvmvif->monitor_active = true;
2775 ret = iwl_mvm_update_quotas(mvm, NULL);
2777 goto out_remove_binding;
2780 /* Handle binding during CSA */
2781 if ((vif->type == NL80211_IFTYPE_AP) ||
2782 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
2783 iwl_mvm_update_quotas(mvm, NULL);
2784 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2787 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2788 struct iwl_mvm_sta *mvmsta;
2790 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2793 if (WARN_ON(!mvmsta))
2796 /* TODO: only re-enable after the first beacon */
2797 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2803 iwl_mvm_binding_remove_vif(mvm, vif);
2804 iwl_mvm_power_update_mac(mvm);
2807 mvmvif->phy_ctxt = NULL;
2810 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2811 struct ieee80211_vif *vif,
2812 struct ieee80211_chanctx_conf *ctx)
2814 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2817 mutex_lock(&mvm->mutex);
2818 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
2819 mutex_unlock(&mvm->mutex);
2824 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2825 struct ieee80211_vif *vif,
2826 struct ieee80211_chanctx_conf *ctx,
2827 bool switching_chanctx)
2829 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2830 struct ieee80211_vif *disabled_vif = NULL;
2831 struct iwl_mvm_sta *mvmsta;
2833 lockdep_assert_held(&mvm->mutex);
2835 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2837 switch (vif->type) {
2838 case NL80211_IFTYPE_ADHOC:
2840 case NL80211_IFTYPE_MONITOR:
2841 mvmvif->monitor_active = false;
2842 mvmvif->ps_disabled = false;
2844 case NL80211_IFTYPE_AP:
2845 /* This part is triggered only during CSA */
2846 if (!vif->csa_active || !mvmvif->ap_ibss_active)
2849 /* Set CS bit on all the stations */
2850 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2852 /* Save blocked iface, the timeout is set on the next beacon */
2853 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2855 mvmvif->ap_ibss_active = false;
2857 case NL80211_IFTYPE_STATION:
2858 if (!switching_chanctx)
2863 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2866 if (!WARN_ON(!mvmsta))
2867 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2869 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
2875 iwl_mvm_update_quotas(mvm, disabled_vif);
2876 iwl_mvm_binding_remove_vif(mvm, vif);
2879 mvmvif->phy_ctxt = NULL;
2880 iwl_mvm_power_update_mac(mvm);
2883 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2884 struct ieee80211_vif *vif,
2885 struct ieee80211_chanctx_conf *ctx)
2887 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2889 mutex_lock(&mvm->mutex);
2890 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
2891 mutex_unlock(&mvm->mutex);
2894 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2895 struct ieee80211_vif_chanctx_switch *vifs,
2897 enum ieee80211_chanctx_switch_mode mode)
2899 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2902 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2903 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2906 mutex_lock(&mvm->mutex);
2907 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
2908 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2910 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2912 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2916 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2920 "failed to assign new_ctx during channel switch\n");
2924 /* we don't support TDLS during DCM - can be caused by channel switch */
2925 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2926 iwl_mvm_teardown_tdls_peers(mvm);
2931 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2934 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2936 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2940 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2943 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2950 /* things keep failing, better restart the hw */
2951 iwl_mvm_nic_restart(mvm, false);
2954 mutex_unlock(&mvm->mutex);
2958 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2959 struct ieee80211_sta *sta,
2962 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2963 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2965 if (!mvm_sta || !mvm_sta->vif) {
2966 IWL_ERR(mvm, "Station is not associated to a vif\n");
2970 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2973 #ifdef CONFIG_NL80211_TESTMODE
2974 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2975 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2976 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2977 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2980 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2981 struct ieee80211_vif *vif,
2982 void *data, int len)
2984 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2988 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2992 if (!tb[IWL_MVM_TM_ATTR_CMD])
2995 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2996 case IWL_MVM_TM_CMD_SET_NOA:
2997 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2998 !vif->bss_conf.enable_beacon ||
2999 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3002 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3003 if (noa_duration >= vif->bss_conf.beacon_int)
3006 mvm->noa_duration = noa_duration;
3009 return iwl_mvm_update_quotas(mvm, NULL);
3010 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3011 /* must be associated client vif - ignore authorized */
3012 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3013 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3014 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3017 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
3018 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3019 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3025 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3026 struct ieee80211_vif *vif,
3027 void *data, int len)
3029 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3032 mutex_lock(&mvm->mutex);
3033 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3034 mutex_unlock(&mvm->mutex);
3040 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
3041 struct ieee80211_vif *vif,
3042 struct cfg80211_chan_def *chandef)
3044 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3045 struct ieee80211_vif *csa_vif;
3047 mutex_lock(&mvm->mutex);
3049 csa_vif = rcu_dereference_protected(mvm->csa_vif,
3050 lockdep_is_held(&mvm->mutex));
3051 if (WARN(csa_vif && csa_vif->csa_active,
3052 "Another CSA is already in progress"))
3055 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
3056 chandef->center_freq1);
3057 rcu_assign_pointer(mvm->csa_vif, vif);
3060 mutex_unlock(&mvm->mutex);
3063 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3064 struct ieee80211_vif *vif, u32 queues, bool drop)
3066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3067 struct iwl_mvm_vif *mvmvif;
3068 struct iwl_mvm_sta *mvmsta;
3070 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3073 mutex_lock(&mvm->mutex);
3074 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3075 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3077 if (WARN_ON_ONCE(!mvmsta)) {
3078 mutex_unlock(&mvm->mutex);
3083 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3084 IWL_ERR(mvm, "flush request fail\n");
3085 mutex_unlock(&mvm->mutex);
3087 u32 tfd_queue_msk = mvmsta->tfd_queue_msk;
3088 mutex_unlock(&mvm->mutex);
3090 /* this can take a while, and we may need/want other operations
3091 * to succeed while doing this, so do it without the mutex held
3093 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_queue_msk);
3097 const struct ieee80211_ops iwl_mvm_hw_ops = {
3098 .tx = iwl_mvm_mac_tx,
3099 .ampdu_action = iwl_mvm_mac_ampdu_action,
3100 .start = iwl_mvm_mac_start,
3101 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
3102 .stop = iwl_mvm_mac_stop,
3103 .add_interface = iwl_mvm_mac_add_interface,
3104 .remove_interface = iwl_mvm_mac_remove_interface,
3105 .config = iwl_mvm_mac_config,
3106 .prepare_multicast = iwl_mvm_prepare_multicast,
3107 .configure_filter = iwl_mvm_configure_filter,
3108 .bss_info_changed = iwl_mvm_bss_info_changed,
3109 .hw_scan = iwl_mvm_mac_hw_scan,
3110 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
3111 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
3112 .sta_state = iwl_mvm_mac_sta_state,
3113 .sta_notify = iwl_mvm_mac_sta_notify,
3114 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3115 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
3116 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
3117 .sta_rc_update = iwl_mvm_sta_rc_update,
3118 .conf_tx = iwl_mvm_mac_conf_tx,
3119 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
3120 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
3121 .flush = iwl_mvm_mac_flush,
3122 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3123 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
3124 .set_key = iwl_mvm_mac_set_key,
3125 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3126 .remain_on_channel = iwl_mvm_roc,
3127 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
3128 .add_chanctx = iwl_mvm_add_chanctx,
3129 .remove_chanctx = iwl_mvm_remove_chanctx,
3130 .change_chanctx = iwl_mvm_change_chanctx,
3131 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3132 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
3133 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
3135 .start_ap = iwl_mvm_start_ap_ibss,
3136 .stop_ap = iwl_mvm_stop_ap_ibss,
3137 .join_ibss = iwl_mvm_start_ap_ibss,
3138 .leave_ibss = iwl_mvm_stop_ap_ibss,
3140 .set_tim = iwl_mvm_set_tim,
3142 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3144 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3146 #ifdef CONFIG_PM_SLEEP
3148 .suspend = iwl_mvm_suspend,
3149 .resume = iwl_mvm_resume,
3150 .set_wakeup = iwl_mvm_set_wakeup,
3151 .set_rekey_data = iwl_mvm_set_rekey_data,
3152 #if IS_ENABLED(CONFIG_IPV6)
3153 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3155 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,