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 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 * Copyright(c) 2018 Intel Corporation
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34 * Copyright(c) 2018 Intel Corporation
35 * All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *****************************************************************************/
65 #include <linux/etherdevice.h>
68 #include <net/cfg80211.h>
71 #include <net/addrconf.h>
72 #include "iwl-modparams.h"
76 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
77 struct ieee80211_vif *vif,
78 struct cfg80211_gtk_rekey_data *data)
80 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
81 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
83 if (iwlwifi_mod_params.swcrypto)
86 mutex_lock(&mvm->mutex);
88 memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN);
89 memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN);
90 mvmvif->rekey_data.replay_ctr =
91 cpu_to_le64(be64_to_cpup((__be64 *)data->replay_ctr));
92 mvmvif->rekey_data.valid = true;
94 mutex_unlock(&mvm->mutex);
97 #if IS_ENABLED(CONFIG_IPV6)
98 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
99 struct ieee80211_vif *vif,
100 struct inet6_dev *idev)
102 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
103 struct inet6_ifaddr *ifa;
106 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
108 read_lock_bh(&idev->lock);
109 list_for_each_entry(ifa, &idev->addr_list, if_list) {
110 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
111 if (ifa->flags & IFA_F_TENTATIVE)
112 __set_bit(idx, mvmvif->tentative_addrs);
114 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
117 read_unlock_bh(&idev->lock);
119 mvmvif->num_target_ipv6_addrs = idx;
123 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
124 struct ieee80211_vif *vif, int idx)
126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
128 mvmvif->tx_key_idx = idx;
131 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
135 for (i = 0; i < IWL_P1K_SIZE; i++)
136 out[i] = cpu_to_le16(p1k[i]);
139 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
140 struct iwl_mvm_key_pn *ptk_pn,
141 struct ieee80211_key_seq *seq,
144 const u8 *ret = seq->ccmp.pn;
147 /* get the PN from mac80211, used on the default queue */
148 ieee80211_get_key_rx_seq(key, tid, seq);
150 /* and use the internal data for the other queues */
151 for (i = 1; i < queues; i++) {
152 const u8 *tmp = ptk_pn->q[i].pn[tid];
154 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
161 struct wowlan_key_data {
162 struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc;
163 struct iwl_wowlan_tkip_params_cmd *tkip;
164 bool error, use_rsc_tsc, use_tkip, configure_keys;
168 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
169 struct ieee80211_vif *vif,
170 struct ieee80211_sta *sta,
171 struct ieee80211_key_conf *key,
174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
175 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
176 struct wowlan_key_data *data = _data;
177 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
178 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
179 struct iwl_p1k_cache *rx_p1ks;
181 struct ieee80211_key_seq seq;
183 u16 p1k[IWL_P1K_SIZE];
186 switch (key->cipher) {
187 case WLAN_CIPHER_SUITE_WEP40:
188 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
190 struct iwl_mvm_wep_key_cmd wep_key_cmd;
191 struct iwl_mvm_wep_key wep_key;
193 .wep_key_cmd.mac_id_n_color =
194 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
196 .wep_key_cmd.num_keys = 1,
197 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
198 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
199 .wep_key.key_index = key->keyidx,
200 .wep_key.key_size = key->keylen,
204 * This will fail -- the key functions don't set support
205 * pairwise WEP keys. However, that's better than silently
206 * failing WoWLAN. Or maybe not?
208 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
211 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
212 if (key->keyidx == mvmvif->tx_key_idx) {
213 /* TX key must be at offset 0 */
214 wkc.wep_key.key_offset = 0;
216 /* others start at 1 */
218 wkc.wep_key.key_offset = data->wep_key_idx;
221 if (data->configure_keys) {
222 mutex_lock(&mvm->mutex);
223 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0,
225 data->error = ret != 0;
227 mvm->ptk_ivlen = key->iv_len;
228 mvm->ptk_icvlen = key->icv_len;
229 mvm->gtk_ivlen = key->iv_len;
230 mvm->gtk_icvlen = key->icv_len;
231 mutex_unlock(&mvm->mutex);
234 /* don't upload key again */
240 case WLAN_CIPHER_SUITE_AES_CMAC:
242 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
243 * but we also shouldn't abort suspend due to that. It does have
244 * support for the IGTK key renewal, but doesn't really use the
245 * IGTK for anything. This means we could spuriously wake up or
246 * be deauthenticated, but that was considered acceptable.
249 case WLAN_CIPHER_SUITE_TKIP:
253 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
254 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
256 rx_p1ks = data->tkip->rx_uni;
258 pn64 = atomic64_read(&key->tx_pn);
259 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
260 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
262 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
264 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
266 memcpy(data->tkip->mic_keys.tx,
267 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
270 rx_mic_key = data->tkip->mic_keys.rx_unicast;
273 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
274 rx_p1ks = data->tkip->rx_multi;
275 rx_mic_key = data->tkip->mic_keys.rx_mcast;
279 * For non-QoS this relies on the fact that both the uCode and
280 * mac80211 use TID 0 (as they need to to avoid replay attacks)
281 * for checking the IV in the frames.
283 for (i = 0; i < IWL_NUM_RSC; i++) {
284 ieee80211_get_key_rx_seq(key, i, &seq);
285 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
286 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
287 /* wrapping isn't allowed, AP must rekey */
288 if (seq.tkip.iv32 > cur_rx_iv32)
289 cur_rx_iv32 = seq.tkip.iv32;
292 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
294 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
295 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
296 cur_rx_iv32 + 1, p1k);
297 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
300 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
303 data->use_tkip = true;
304 data->use_rsc_tsc = true;
306 case WLAN_CIPHER_SUITE_CCMP:
310 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
311 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
313 pn64 = atomic64_read(&key->tx_pn);
314 aes_tx_sc->pn = cpu_to_le64(pn64);
316 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
320 * For non-QoS this relies on the fact that both the uCode and
321 * mac80211/our RX code use TID 0 for checking the PN.
323 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
324 struct iwl_mvm_sta *mvmsta;
325 struct iwl_mvm_key_pn *ptk_pn;
328 mvmsta = iwl_mvm_sta_from_mac80211(sta);
329 ptk_pn = rcu_dereference_protected(
330 mvmsta->ptk_pn[key->keyidx],
331 lockdep_is_held(&mvm->mutex));
332 if (WARN_ON(!ptk_pn))
335 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
336 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
337 mvm->trans->num_rx_queues);
338 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
346 for (i = 0; i < IWL_NUM_RSC; i++) {
347 u8 *pn = seq.ccmp.pn;
349 ieee80211_get_key_rx_seq(key, i, &seq);
350 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
358 data->use_rsc_tsc = true;
362 if (data->configure_keys) {
363 mutex_lock(&mvm->mutex);
365 * The D3 firmware hardcodes the key offset 0 as the key it
366 * uses to transmit packets to the AP, i.e. the PTK.
368 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
369 mvm->ptk_ivlen = key->iv_len;
370 mvm->ptk_icvlen = key->icv_len;
371 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
374 * firmware only supports TSC/RSC for a single key,
375 * so if there are multiple keep overwriting them
376 * with new ones -- this relies on mac80211 doing
379 mvm->gtk_ivlen = key->iv_len;
380 mvm->gtk_icvlen = key->icv_len;
381 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
383 mutex_unlock(&mvm->mutex);
384 data->error = ret != 0;
388 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
389 struct cfg80211_wowlan *wowlan)
391 struct iwl_wowlan_patterns_cmd *pattern_cmd;
392 struct iwl_host_cmd cmd = {
393 .id = WOWLAN_PATTERNS,
394 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
398 if (!wowlan->n_patterns)
401 cmd.len[0] = sizeof(*pattern_cmd) +
402 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern);
404 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
408 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
410 for (i = 0; i < wowlan->n_patterns; i++) {
411 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
413 memcpy(&pattern_cmd->patterns[i].mask,
414 wowlan->patterns[i].mask, mask_len);
415 memcpy(&pattern_cmd->patterns[i].pattern,
416 wowlan->patterns[i].pattern,
417 wowlan->patterns[i].pattern_len);
418 pattern_cmd->patterns[i].mask_size = mask_len;
419 pattern_cmd->patterns[i].pattern_size =
420 wowlan->patterns[i].pattern_len;
423 cmd.data[0] = pattern_cmd;
424 err = iwl_mvm_send_cmd(mvm, &cmd);
429 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
430 struct ieee80211_sta *ap_sta)
432 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
433 struct ieee80211_chanctx_conf *ctx;
434 u8 chains_static, chains_dynamic;
435 struct cfg80211_chan_def chandef;
437 struct iwl_binding_cmd_v1 binding_cmd = {};
438 struct iwl_time_quota_cmd quota_cmd = {};
439 struct iwl_time_quota_data *quota;
442 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
445 /* add back the PHY */
446 if (WARN_ON(!mvmvif->phy_ctxt))
450 ctx = rcu_dereference(vif->chanctx_conf);
456 chains_static = ctx->rx_chains_static;
457 chains_dynamic = ctx->rx_chains_dynamic;
460 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
461 chains_static, chains_dynamic);
465 /* add back the MAC */
466 mvmvif->uploaded = false;
468 if (WARN_ON(!vif->bss_conf.assoc))
471 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
475 /* add back binding - XXX refactor? */
476 binding_cmd.id_and_color =
477 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
478 mvmvif->phy_ctxt->color));
479 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
481 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
482 mvmvif->phy_ctxt->color));
483 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
485 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
486 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
489 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
490 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
493 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
498 IWL_ERR(mvm, "Binding command failed: %u\n", status);
502 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
505 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
507 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
512 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0);
513 quota->id_and_color =
514 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
515 mvmvif->phy_ctxt->color));
516 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
517 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
519 for (i = 1; i < MAX_BINDINGS; i++) {
520 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i);
521 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
524 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
525 iwl_mvm_quota_cmd_size(mvm), "a_cmd);
527 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
529 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
530 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
535 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
536 struct ieee80211_vif *vif)
538 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
539 struct iwl_nonqos_seq_query_cmd query_cmd = {
540 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
542 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
545 struct iwl_host_cmd cmd = {
546 .id = NON_QOS_TX_COUNTER_CMD,
547 .flags = CMD_WANT_SKB,
552 cmd.data[0] = &query_cmd;
553 cmd.len[0] = sizeof(query_cmd);
555 err = iwl_mvm_send_cmd(mvm, &cmd);
559 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
560 if (size < sizeof(__le16)) {
563 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
564 /* firmware returns next, not last-used seqno */
565 err = (u16) (err - 0x10);
572 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
574 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
575 struct iwl_nonqos_seq_query_cmd query_cmd = {
576 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
578 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
580 .value = cpu_to_le16(mvmvif->seqno),
583 /* return if called during restart, not resume from D3 */
584 if (!mvmvif->seqno_valid)
587 mvmvif->seqno_valid = false;
589 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
590 sizeof(query_cmd), &query_cmd))
591 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
594 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
596 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
598 iwl_mvm_stop_device(mvm);
600 * Set the HW restart bit -- this is mostly true as we're
601 * going to load new firmware and reprogram that, though
602 * the reprogramming is going to be manual to avoid adding
603 * all the MACs that aren't support.
604 * We don't have to clear up everything though because the
605 * reprogramming is manual. When we resume, we'll actually
606 * go through a proper restart sequence again to switch
607 * back to the runtime firmware image.
609 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
611 /* the fw is reset, so all the keys are cleared */
612 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
619 return iwl_mvm_load_d3_fw(mvm);
623 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
624 struct cfg80211_wowlan *wowlan,
625 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
626 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
627 struct ieee80211_sta *ap_sta)
630 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
632 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
634 wowlan_config_cmd->is_11n_connection =
635 ap_sta->ht_cap.ht_supported;
636 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
637 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
639 /* Query the last used seqno and set it */
640 ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
644 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
646 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
648 if (wowlan->disconnect)
649 wowlan_config_cmd->wakeup_filter |=
650 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
651 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
652 if (wowlan->magic_pkt)
653 wowlan_config_cmd->wakeup_filter |=
654 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
655 if (wowlan->gtk_rekey_failure)
656 wowlan_config_cmd->wakeup_filter |=
657 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
658 if (wowlan->eap_identity_req)
659 wowlan_config_cmd->wakeup_filter |=
660 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
661 if (wowlan->four_way_handshake)
662 wowlan_config_cmd->wakeup_filter |=
663 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
664 if (wowlan->n_patterns)
665 wowlan_config_cmd->wakeup_filter |=
666 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
668 if (wowlan->rfkill_release)
669 wowlan_config_cmd->wakeup_filter |=
670 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
674 * Set the "link change" (really "link lost") flag as well
675 * since that implies losing the TCP connection.
677 wowlan_config_cmd->wakeup_filter |=
678 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
679 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
680 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
681 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
685 wowlan_config_cmd->wakeup_filter |=
686 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
687 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
688 IWL_WOWLAN_WAKEUP_RX_FRAME |
689 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
696 iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm *mvm,
697 struct ieee80211_vif *vif,
698 void (*iter)(struct ieee80211_hw *hw,
699 struct ieee80211_vif *vif,
700 struct ieee80211_sta *sta,
701 struct ieee80211_key_conf *key,
705 struct ieee80211_sta *ap_sta;
709 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id]);
710 if (IS_ERR_OR_NULL(ap_sta))
713 ieee80211_iter_keys_rcu(mvm->hw, vif, iter, data);
718 int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
719 struct ieee80211_vif *vif,
723 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
724 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
725 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
726 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
727 struct wowlan_key_data key_data = {
728 .configure_keys = !d0i3 && !unified,
729 .use_rsc_tsc = false,
733 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
736 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
737 if (!key_data.rsc_tsc)
741 * if we have to configure keys, call ieee80211_iter_keys(),
742 * as we need non-atomic context in order to take the
744 * for the d0i3 we can't use ieee80211_iter_keys(), as
745 * taking (almost) any mutex might result in deadlock.
749 * Note that currently we don't propagate cmd_flags
750 * to the iterator. In case of key_data.configure_keys,
751 * all the configured commands are SYNC, and
752 * iwl_mvm_wowlan_program_keys() will take care of
753 * locking/unlocking mvm->mutex.
755 ieee80211_iter_keys(mvm->hw, vif,
756 iwl_mvm_wowlan_program_keys,
759 iwl_mvm_iter_d0i3_ap_keys(mvm, vif,
760 iwl_mvm_wowlan_program_keys,
764 if (key_data.error) {
769 if (key_data.use_rsc_tsc) {
770 ret = iwl_mvm_send_cmd_pdu(mvm,
771 WOWLAN_TSC_RSC_PARAM, cmd_flags,
772 sizeof(*key_data.rsc_tsc),
778 if (key_data.use_tkip &&
779 !fw_has_api(&mvm->fw->ucode_capa,
780 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
781 ret = iwl_mvm_send_cmd_pdu(mvm,
783 cmd_flags, sizeof(tkip_cmd),
789 /* configure rekey data only if offloaded rekey is supported (d3) */
790 if (mvmvif->rekey_data.valid && !d0i3) {
791 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
792 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
794 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
795 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
797 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
798 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
800 ret = iwl_mvm_send_cmd_pdu(mvm,
801 WOWLAN_KEK_KCK_MATERIAL, cmd_flags,
809 kfree(key_data.rsc_tsc);
814 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
815 struct cfg80211_wowlan *wowlan,
816 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
817 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
818 struct ieee80211_sta *ap_sta)
821 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
822 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
824 if (!unified_image) {
825 ret = iwl_mvm_switch_to_d3(mvm);
829 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
834 if (!iwlwifi_mod_params.swcrypto) {
836 * This needs to be unlocked due to lock ordering
837 * constraints. Since we're in the suspend path
838 * that isn't really a problem though.
840 mutex_unlock(&mvm->mutex);
841 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, false,
843 mutex_lock(&mvm->mutex);
848 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
849 sizeof(*wowlan_config_cmd),
854 ret = iwl_mvm_send_patterns(mvm, wowlan);
858 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
862 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
863 struct cfg80211_wowlan *wowlan,
864 struct cfg80211_sched_scan_request *nd_config,
865 struct ieee80211_vif *vif)
867 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
869 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
870 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
872 if (!unified_image) {
873 ret = iwl_mvm_switch_to_d3(mvm);
877 /* In theory, we wouldn't have to stop a running sched
878 * scan in order to start another one (for
879 * net-detect). But in practice this doesn't seem to
880 * work properly, so stop any running sched_scan now.
882 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
887 /* rfkill release can be either for wowlan or netdetect */
888 if (wowlan->rfkill_release)
889 wowlan_config_cmd.wakeup_filter |=
890 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
892 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
893 sizeof(wowlan_config_cmd),
898 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
899 IWL_MVM_SCAN_NETDETECT);
903 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
906 /* save the sched scan matchsets... */
907 if (nd_config->n_match_sets) {
908 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
909 sizeof(*nd_config->match_sets) *
910 nd_config->n_match_sets,
912 if (mvm->nd_match_sets)
913 mvm->n_nd_match_sets = nd_config->n_match_sets;
916 /* ...and the sched scan channels for later reporting */
917 mvm->nd_channels = kmemdup(nd_config->channels,
918 sizeof(*nd_config->channels) *
919 nd_config->n_channels,
921 if (mvm->nd_channels)
922 mvm->n_nd_channels = nd_config->n_channels;
927 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
929 kfree(mvm->nd_match_sets);
930 mvm->nd_match_sets = NULL;
931 mvm->n_nd_match_sets = 0;
932 kfree(mvm->nd_channels);
933 mvm->nd_channels = NULL;
934 mvm->n_nd_channels = 0;
937 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
938 struct cfg80211_wowlan *wowlan,
941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
942 struct ieee80211_vif *vif = NULL;
943 struct iwl_mvm_vif *mvmvif = NULL;
944 struct ieee80211_sta *ap_sta = NULL;
945 struct iwl_d3_manager_config d3_cfg_cmd_data = {
947 * Program the minimum sleep time to 10 seconds, as many
948 * platforms have issues processing a wakeup signal while
949 * still being in the process of suspending.
951 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
953 struct iwl_host_cmd d3_cfg_cmd = {
955 .flags = CMD_WANT_SKB,
956 .data[0] = &d3_cfg_cmd_data,
957 .len[0] = sizeof(d3_cfg_cmd_data),
960 int len __maybe_unused;
961 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
962 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
966 * mac80211 shouldn't get here, but for D3 test
967 * it doesn't warrant a warning
973 mutex_lock(&mvm->mutex);
975 vif = iwl_mvm_get_bss_vif(mvm);
976 if (IS_ERR_OR_NULL(vif)) {
981 mvmvif = iwl_mvm_vif_from_mac80211(vif);
983 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
984 /* if we're not associated, this must be netdetect */
985 if (!wowlan->nd_config) {
990 ret = iwl_mvm_netdetect_config(
991 mvm, wowlan, wowlan->nd_config, vif);
995 mvm->net_detect = true;
997 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
999 ap_sta = rcu_dereference_protected(
1000 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1001 lockdep_is_held(&mvm->mutex));
1002 if (IS_ERR_OR_NULL(ap_sta)) {
1007 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1008 vif, mvmvif, ap_sta);
1011 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1012 vif, mvmvif, ap_sta);
1016 mvm->net_detect = false;
1019 ret = iwl_mvm_power_update_device(mvm);
1023 ret = iwl_mvm_power_update_mac(mvm);
1027 #ifdef CONFIG_IWLWIFI_DEBUGFS
1028 if (mvm->d3_wake_sysassert)
1029 d3_cfg_cmd_data.wakeup_flags |=
1030 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1034 * TODO: this is needed because the firmware is not stopping
1035 * the recording automatically before entering D3. This can
1036 * be removed once the FW starts doing that.
1038 _iwl_fw_dbg_stop_recording(mvm->fwrt.trans, NULL);
1040 /* must be last -- this switches firmware state */
1041 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1044 #ifdef CONFIG_IWLWIFI_DEBUGFS
1045 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1046 if (len >= sizeof(u32)) {
1047 mvm->d3_test_pme_ptr =
1048 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1051 iwl_free_resp(&d3_cfg_cmd);
1053 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1055 iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1058 iwl_mvm_free_nd(mvm);
1060 if (!unified_image) {
1061 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1062 if (mvm->fw_restart > 0) {
1064 ieee80211_restart_hw(mvm->hw);
1069 mutex_unlock(&mvm->mutex);
1074 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm)
1076 struct iwl_notification_wait wait_d3;
1077 static const u16 d3_notif[] = { D3_CONFIG_CMD };
1080 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3,
1081 d3_notif, ARRAY_SIZE(d3_notif),
1084 ret = iwl_mvm_enter_d0i3(mvm->hw->priv);
1088 ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ);
1093 iwl_remove_notification(&mvm->notif_wait, &wait_d3);
1097 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1100 struct iwl_trans *trans = mvm->trans;
1103 /* make sure the d0i3 exit work is not pending */
1104 flush_work(&mvm->d0i3_exit_work);
1105 iwl_mvm_pause_tcm(mvm, true);
1107 iwl_fw_runtime_suspend(&mvm->fwrt);
1109 ret = iwl_trans_suspend(trans);
1114 trans->system_pm_mode = IWL_PLAT_PM_MODE_D0I3;
1116 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
1117 ret = iwl_mvm_enter_d0i3_sync(mvm);
1123 mutex_lock(&mvm->d0i3_suspend_mutex);
1124 __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1125 mutex_unlock(&mvm->d0i3_suspend_mutex);
1127 iwl_trans_d3_suspend(trans, false, false);
1132 trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1134 return __iwl_mvm_suspend(hw, wowlan, false);
1137 /* converted data from the different status responses */
1138 struct iwl_wowlan_status_data {
1142 u32 wake_packet_length;
1143 u32 wake_packet_bufsize;
1144 const u8 *wake_packet;
1147 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1148 struct ieee80211_vif *vif,
1149 struct iwl_wowlan_status_data *status)
1151 struct sk_buff *pkt = NULL;
1152 struct cfg80211_wowlan_wakeup wakeup = {
1155 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1156 u32 reasons = status->wakeup_reasons;
1158 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1159 wakeup_report = NULL;
1163 pm_wakeup_event(mvm->dev, 0);
1165 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1166 wakeup.magic_pkt = true;
1168 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1169 wakeup.pattern_idx =
1170 status->pattern_number;
1172 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1173 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1174 wakeup.disconnect = true;
1176 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1177 wakeup.gtk_rekey_failure = true;
1179 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1180 wakeup.rfkill_release = true;
1182 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1183 wakeup.eap_identity_req = true;
1185 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1186 wakeup.four_way_handshake = true;
1188 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1189 wakeup.tcp_connlost = true;
1191 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1192 wakeup.tcp_nomoretokens = true;
1194 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1195 wakeup.tcp_match = true;
1197 if (status->wake_packet_bufsize) {
1198 int pktsize = status->wake_packet_bufsize;
1199 int pktlen = status->wake_packet_length;
1200 const u8 *pktdata = status->wake_packet;
1201 struct ieee80211_hdr *hdr = (void *)pktdata;
1202 int truncated = pktlen - pktsize;
1204 /* this would be a firmware bug */
1205 if (WARN_ON_ONCE(truncated < 0))
1208 if (ieee80211_is_data(hdr->frame_control)) {
1209 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1210 int ivlen = 0, icvlen = 4; /* also FCS */
1212 pkt = alloc_skb(pktsize, GFP_KERNEL);
1216 skb_put_data(pkt, pktdata, hdrlen);
1220 if (ieee80211_has_protected(hdr->frame_control)) {
1222 * This is unlocked and using gtk_i(c)vlen,
1223 * but since everything is under RTNL still
1224 * that's not really a problem - changing
1225 * it would be difficult.
1227 if (is_multicast_ether_addr(hdr->addr1)) {
1228 ivlen = mvm->gtk_ivlen;
1229 icvlen += mvm->gtk_icvlen;
1231 ivlen = mvm->ptk_ivlen;
1232 icvlen += mvm->ptk_icvlen;
1236 /* if truncated, FCS/ICV is (partially) gone */
1237 if (truncated >= icvlen) {
1239 truncated -= icvlen;
1241 icvlen -= truncated;
1245 pktsize -= ivlen + icvlen;
1248 skb_put_data(pkt, pktdata, pktsize);
1250 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1252 wakeup.packet = pkt->data;
1253 wakeup.packet_present_len = pkt->len;
1254 wakeup.packet_len = pkt->len - truncated;
1255 wakeup.packet_80211 = false;
1259 if (truncated >= 4) {
1263 fcslen -= truncated;
1267 wakeup.packet = status->wake_packet;
1268 wakeup.packet_present_len = pktsize;
1269 wakeup.packet_len = pktlen - truncated;
1270 wakeup.packet_80211 = true;
1275 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1279 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1280 struct ieee80211_key_seq *seq)
1284 pn = le64_to_cpu(sc->pn);
1285 seq->ccmp.pn[0] = pn >> 40;
1286 seq->ccmp.pn[1] = pn >> 32;
1287 seq->ccmp.pn[2] = pn >> 24;
1288 seq->ccmp.pn[3] = pn >> 16;
1289 seq->ccmp.pn[4] = pn >> 8;
1290 seq->ccmp.pn[5] = pn;
1293 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1294 struct ieee80211_key_seq *seq)
1296 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1297 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1300 static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs,
1301 struct ieee80211_sta *sta,
1302 struct ieee80211_key_conf *key)
1306 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1308 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
1309 struct iwl_mvm_sta *mvmsta;
1310 struct iwl_mvm_key_pn *ptk_pn;
1312 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1314 ptk_pn = rcu_dereference_protected(mvmsta->ptk_pn[key->keyidx],
1315 lockdep_is_held(&mvm->mutex));
1316 if (WARN_ON(!ptk_pn))
1319 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1320 struct ieee80211_key_seq seq = {};
1323 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1324 ieee80211_set_key_rx_seq(key, tid, &seq);
1325 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1326 memcpy(ptk_pn->q[i].pn[tid],
1327 seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1330 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1331 struct ieee80211_key_seq seq = {};
1333 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1334 ieee80211_set_key_rx_seq(key, tid, &seq);
1339 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1340 struct ieee80211_key_conf *key)
1344 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1346 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1347 struct ieee80211_key_seq seq = {};
1349 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1350 ieee80211_set_key_rx_seq(key, tid, &seq);
1354 static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
1355 struct ieee80211_key_conf *key,
1356 struct iwl_wowlan_status *status)
1358 union iwl_all_tsc_rsc *rsc = &status->gtk[0].rsc.all_tsc_rsc;
1360 switch (key->cipher) {
1361 case WLAN_CIPHER_SUITE_CCMP:
1362 iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key);
1364 case WLAN_CIPHER_SUITE_TKIP:
1365 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1372 struct iwl_mvm_d3_gtk_iter_data {
1373 struct iwl_mvm *mvm;
1374 struct iwl_wowlan_status *status;
1377 bool find_phase, unhandled_cipher;
1381 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1382 struct ieee80211_vif *vif,
1383 struct ieee80211_sta *sta,
1384 struct ieee80211_key_conf *key,
1387 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1389 if (data->unhandled_cipher)
1392 switch (key->cipher) {
1393 case WLAN_CIPHER_SUITE_WEP40:
1394 case WLAN_CIPHER_SUITE_WEP104:
1395 /* ignore WEP completely, nothing to do */
1397 case WLAN_CIPHER_SUITE_CCMP:
1398 case WLAN_CIPHER_SUITE_TKIP:
1399 /* we support these */
1402 /* everything else (even CMAC for MFP) - disconnect from AP */
1403 data->unhandled_cipher = true;
1410 * pairwise key - update sequence counters only;
1411 * note that this assumes no TDLS sessions are active
1414 struct ieee80211_key_seq seq = {};
1415 union iwl_all_tsc_rsc *sc =
1416 &data->status->gtk[0].rsc.all_tsc_rsc;
1418 if (data->find_phase)
1421 switch (key->cipher) {
1422 case WLAN_CIPHER_SUITE_CCMP:
1423 iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
1425 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
1427 case WLAN_CIPHER_SUITE_TKIP:
1428 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1429 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1430 atomic64_set(&key->tx_pn,
1431 (u64)seq.tkip.iv16 |
1432 ((u64)seq.tkip.iv32 << 16));
1436 /* that's it for this key */
1440 if (data->find_phase) {
1441 data->last_gtk = key;
1442 data->cipher = key->cipher;
1446 if (data->status->num_of_gtk_rekeys)
1447 ieee80211_remove_key(key);
1448 else if (data->last_gtk == key)
1449 iwl_mvm_set_key_rx_seq(data->mvm, key, data->status);
1452 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1453 struct ieee80211_vif *vif,
1454 struct iwl_wowlan_status *status)
1456 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1457 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1461 u32 disconnection_reasons =
1462 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1463 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1465 if (!status || !vif->bss_conf.bssid)
1468 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1471 /* find last GTK that we used initially, if any */
1472 gtkdata.find_phase = true;
1473 ieee80211_iter_keys(mvm->hw, vif,
1474 iwl_mvm_d3_update_keys, >kdata);
1475 /* not trying to keep connections with MFP/unhandled ciphers */
1476 if (gtkdata.unhandled_cipher)
1478 if (!gtkdata.num_keys)
1480 if (!gtkdata.last_gtk)
1484 * invalidate all other GTKs that might still exist and update
1485 * the one that we used
1487 gtkdata.find_phase = false;
1488 ieee80211_iter_keys(mvm->hw, vif,
1489 iwl_mvm_d3_update_keys, >kdata);
1491 if (status->num_of_gtk_rekeys) {
1492 struct ieee80211_key_conf *key;
1494 struct ieee80211_key_conf conf;
1497 .conf.cipher = gtkdata.cipher,
1499 iwlmvm_wowlan_gtk_idx(&status->gtk[0]),
1503 switch (gtkdata.cipher) {
1504 case WLAN_CIPHER_SUITE_CCMP:
1505 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1506 memcpy(conf.conf.key, status->gtk[0].key,
1509 case WLAN_CIPHER_SUITE_TKIP:
1510 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1511 memcpy(conf.conf.key, status->gtk[0].key, 16);
1512 /* leave TX MIC key zeroed, we don't use it anyway */
1513 memcpy(conf.conf.key +
1514 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1515 status->gtk[0].tkip_mic_key, 8);
1519 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1522 iwl_mvm_set_key_rx_seq(mvm, key, status);
1525 cpu_to_be64(le64_to_cpu(status->replay_ctr));
1527 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1528 (void *)&replay_ctr, GFP_KERNEL);
1532 mvmvif->seqno_valid = true;
1533 /* +0x10 because the set API expects next-to-use, not last-used */
1534 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1539 struct iwl_wowlan_status *iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm)
1541 struct iwl_wowlan_status *v7, *status;
1542 struct iwl_host_cmd cmd = {
1543 .id = WOWLAN_GET_STATUSES,
1544 .flags = CMD_WANT_SKB,
1546 int ret, len, status_size;
1548 lockdep_assert_held(&mvm->mutex);
1550 ret = iwl_mvm_send_cmd(mvm, &cmd);
1552 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
1553 return ERR_PTR(ret);
1556 if (!fw_has_api(&mvm->fw->ucode_capa,
1557 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
1558 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
1561 status_size = sizeof(*v6);
1562 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1564 if (len < status_size) {
1565 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1566 status = ERR_PTR(-EIO);
1570 data_size = ALIGN(le32_to_cpu(v6->wake_packet_bufsize), 4);
1572 if (len != (status_size + data_size)) {
1573 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1574 status = ERR_PTR(-EIO);
1578 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL);
1582 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
1583 sizeof(status->gtk[0].key));
1584 BUILD_BUG_ON(sizeof(v6->gtk.tkip_mic_key) >
1585 sizeof(status->gtk[0].tkip_mic_key));
1587 /* copy GTK info to the right place */
1588 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
1589 sizeof(v6->gtk.decrypt_key));
1590 memcpy(status->gtk[0].tkip_mic_key, v6->gtk.tkip_mic_key,
1591 sizeof(v6->gtk.tkip_mic_key));
1592 memcpy(&status->gtk[0].rsc, &v6->gtk.rsc,
1593 sizeof(status->gtk[0].rsc));
1595 /* hardcode the key length to 16 since v6 only supports 16 */
1596 status->gtk[0].key_len = 16;
1599 * The key index only uses 2 bits (values 0 to 3) and
1600 * we always set bit 7 which means this is the
1601 * currently used key.
1603 status->gtk[0].key_flags = v6->gtk.key_index | BIT(7);
1605 status->replay_ctr = v6->replay_ctr;
1607 /* everything starting from pattern_number is identical */
1608 memcpy(&status->pattern_number, &v6->pattern_number,
1609 offsetof(struct iwl_wowlan_status, wake_packet) -
1610 offsetof(struct iwl_wowlan_status, pattern_number) +
1616 v7 = (void *)cmd.resp_pkt->data;
1617 status_size = sizeof(*v7);
1618 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1620 if (len < status_size) {
1621 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1622 status = ERR_PTR(-EIO);
1626 if (len != (status_size +
1627 ALIGN(le32_to_cpu(v7->wake_packet_bufsize), 4))) {
1628 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1629 status = ERR_PTR(-EIO);
1633 status = kmemdup(v7, len, GFP_KERNEL);
1636 iwl_free_resp(&cmd);
1640 static struct iwl_wowlan_status *
1641 iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm)
1645 /* only for tracing for now */
1646 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL);
1648 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1650 return iwl_mvm_send_wowlan_get_status(mvm);
1653 /* releases the MVM mutex */
1654 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1655 struct ieee80211_vif *vif)
1657 struct iwl_wowlan_status_data status;
1658 struct iwl_wowlan_status *fw_status;
1661 struct iwl_mvm_sta *mvm_ap_sta;
1663 fw_status = iwl_mvm_get_wakeup_status(mvm);
1664 if (IS_ERR_OR_NULL(fw_status))
1667 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
1668 for (i = 0; i < 8; i++)
1669 status.qos_seq_ctr[i] =
1670 le16_to_cpu(fw_status->qos_seq_ctr[i]);
1671 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
1672 status.wake_packet_length =
1673 le32_to_cpu(fw_status->wake_packet_length);
1674 status.wake_packet_bufsize =
1675 le32_to_cpu(fw_status->wake_packet_bufsize);
1676 status.wake_packet = fw_status->wake_packet;
1678 /* still at hard-coded place 0 for D3 image */
1679 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
1683 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1684 u16 seq = status.qos_seq_ctr[i];
1685 /* firmware stores last-used value, we store next value */
1687 mvm_ap_sta->tid_data[i].seq_number = seq;
1690 /* now we have all the data we need, unlock to avoid mac80211 issues */
1691 mutex_unlock(&mvm->mutex);
1693 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
1695 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
1703 mutex_unlock(&mvm->mutex);
1707 void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
1708 struct ieee80211_vif *vif,
1709 struct iwl_wowlan_status *status)
1711 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1717 * rekey handling requires taking locks that can't be taken now.
1718 * however, d0i3 doesn't offload rekey, so we're fine.
1720 if (WARN_ON_ONCE(status->num_of_gtk_rekeys))
1723 /* find last GTK that we used initially, if any */
1724 gtkdata.find_phase = true;
1725 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
1727 gtkdata.find_phase = false;
1728 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
1731 struct iwl_mvm_nd_query_results {
1732 u32 matched_profiles;
1733 struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
1737 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
1738 struct iwl_mvm_nd_query_results *results)
1740 struct iwl_scan_offload_profiles_query *query;
1741 struct iwl_host_cmd cmd = {
1742 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
1743 .flags = CMD_WANT_SKB,
1747 ret = iwl_mvm_send_cmd(mvm, &cmd);
1749 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
1753 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1754 if (len < sizeof(*query)) {
1755 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
1760 query = (void *)cmd.resp_pkt->data;
1762 results->matched_profiles = le32_to_cpu(query->matched_profiles);
1763 memcpy(results->matches, query->matches, sizeof(results->matches));
1765 #ifdef CONFIG_IWLWIFI_DEBUGFS
1766 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
1770 iwl_free_resp(&cmd);
1774 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
1775 struct ieee80211_vif *vif)
1777 struct cfg80211_wowlan_nd_info *net_detect = NULL;
1778 struct cfg80211_wowlan_wakeup wakeup = {
1781 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1782 struct iwl_mvm_nd_query_results query;
1783 struct iwl_wowlan_status *fw_status;
1784 unsigned long matched_profiles;
1786 int i, j, n_matches, ret;
1788 fw_status = iwl_mvm_get_wakeup_status(mvm);
1789 if (!IS_ERR_OR_NULL(fw_status)) {
1790 reasons = le32_to_cpu(fw_status->wakeup_reasons);
1794 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1795 wakeup.rfkill_release = true;
1797 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
1800 ret = iwl_mvm_netdetect_query_results(mvm, &query);
1801 if (ret || !query.matched_profiles) {
1802 wakeup_report = NULL;
1806 matched_profiles = query.matched_profiles;
1807 if (mvm->n_nd_match_sets) {
1808 n_matches = hweight_long(matched_profiles);
1810 IWL_ERR(mvm, "no net detect match information available\n");
1814 net_detect = kzalloc(sizeof(*net_detect) +
1815 (n_matches * sizeof(net_detect->matches[0])),
1817 if (!net_detect || !n_matches)
1820 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
1821 struct iwl_scan_offload_profile_match *fw_match;
1822 struct cfg80211_wowlan_nd_match *match;
1823 int idx, n_channels = 0;
1825 fw_match = &query.matches[i];
1827 for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; j++)
1828 n_channels += hweight8(fw_match->matching_channels[j]);
1830 match = kzalloc(sizeof(*match) +
1831 (n_channels * sizeof(*match->channels)),
1836 net_detect->matches[net_detect->n_matches++] = match;
1838 /* We inverted the order of the SSIDs in the scan
1839 * request, so invert the index here.
1841 idx = mvm->n_nd_match_sets - i - 1;
1842 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
1843 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
1844 match->ssid.ssid_len);
1846 if (mvm->n_nd_channels < n_channels)
1849 for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; j++)
1850 if (fw_match->matching_channels[j / 8] & (BIT(j % 8)))
1851 match->channels[match->n_channels++] =
1852 mvm->nd_channels[j]->center_freq;
1856 wakeup.net_detect = net_detect;
1858 iwl_mvm_free_nd(mvm);
1860 mutex_unlock(&mvm->mutex);
1861 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1864 for (i = 0; i < net_detect->n_matches; i++)
1865 kfree(net_detect->matches[i]);
1870 static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
1872 #ifdef CONFIG_IWLWIFI_DEBUGFS
1873 const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1874 u32 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1875 u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1877 if (!mvm->store_d3_resume_sram)
1880 if (!mvm->d3_resume_sram) {
1881 mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL);
1882 if (!mvm->d3_resume_sram)
1886 iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len);
1890 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
1891 struct ieee80211_vif *vif)
1893 /* skip the one we keep connection on */
1897 if (vif->type == NL80211_IFTYPE_STATION)
1898 ieee80211_resume_disconnect(vif);
1901 static int iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
1902 struct ieee80211_vif *vif)
1904 u32 base = mvm->error_event_table[0];
1905 struct error_table_start {
1906 /* cf. struct iwl_error_event_table */
1911 iwl_trans_read_mem_bytes(mvm->trans, base,
1912 &err_info, sizeof(err_info));
1914 if (err_info.valid &&
1915 err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
1916 struct cfg80211_wowlan_wakeup wakeup = {
1917 .rfkill_release = true,
1919 ieee80211_report_wowlan_wakeup(vif, &wakeup, GFP_KERNEL);
1921 return err_info.valid;
1924 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
1926 struct ieee80211_vif *vif = NULL;
1928 enum iwl_d3_status d3_status;
1930 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1931 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1932 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
1933 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
1935 mutex_lock(&mvm->mutex);
1937 /* get the BSS vif pointer again */
1938 vif = iwl_mvm_get_bss_vif(mvm);
1939 if (IS_ERR_OR_NULL(vif))
1942 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
1946 if (d3_status != IWL_D3_STATUS_ALIVE) {
1947 IWL_INFO(mvm, "Device was reset during suspend\n");
1951 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
1952 /* query SRAM first in case we want event logging */
1953 iwl_mvm_read_d3_sram(mvm);
1955 if (iwl_mvm_check_rt_status(mvm, vif)) {
1956 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
1957 iwl_mvm_dump_nic_error_log(mvm);
1958 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
1965 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
1967 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
1974 * Query the current location and source from the D3 firmware so we
1975 * can play it back when we re-intiailize the D0 firmware
1977 iwl_mvm_update_changed_regdom(mvm);
1980 /* Re-configure default SAR profile */
1981 iwl_mvm_sar_select_profile(mvm, 1, 1);
1983 if (mvm->net_detect) {
1984 /* If this is a non-unified image, we restart the FW,
1985 * so no need to stop the netdetect scan. If that
1986 * fails, continue and try to get the wake-up reasons,
1987 * but trigger a HW restart by keeping a failure code
1991 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
1994 iwl_mvm_query_netdetect_reasons(mvm, vif);
1995 /* has unlocked the mutex, so skip that */
1998 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
1999 #ifdef CONFIG_IWLWIFI_DEBUGFS
2001 mvm->keep_vif = vif;
2003 /* has unlocked the mutex, so skip that */
2008 iwl_mvm_free_nd(mvm);
2009 mutex_unlock(&mvm->mutex);
2013 ieee80211_iterate_active_interfaces_rtnl(mvm->hw,
2014 IEEE80211_IFACE_ITER_NORMAL,
2015 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
2018 /* no need to reset the device in unified images, if successful */
2019 if (unified_image && !ret) {
2020 /* nothing else to do if we already sent D0I3_END_CMD */
2024 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2030 * Reconfigure the device in one of the following cases:
2031 * 1. We are not using a unified image
2032 * 2. We are using a unified image but had an error while exiting D3
2034 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
2035 set_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status);
2037 * When switching images we return 1, which causes mac80211
2038 * to do a reconfig with IEEE80211_RECONFIG_TYPE_RESTART.
2039 * This type of reconfig calls iwl_mvm_restart_complete(),
2040 * where we unref the IWL_MVM_REF_UCODE_DOWN, so we need
2041 * to take the reference here.
2043 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
2048 static int iwl_mvm_resume_d3(struct iwl_mvm *mvm)
2050 iwl_trans_resume(mvm->trans);
2052 return __iwl_mvm_resume(mvm, false);
2055 static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm)
2058 enum iwl_d3_status d3_status;
2059 struct iwl_trans *trans = mvm->trans;
2061 iwl_trans_d3_resume(trans, &d3_status, false, false);
2064 * make sure to clear D0I3_DEFER_WAKEUP before
2065 * calling iwl_trans_resume(), which might wait
2066 * for d0i3 exit completion.
2068 mutex_lock(&mvm->d0i3_suspend_mutex);
2069 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
2070 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
2071 &mvm->d0i3_suspend_flags);
2072 mutex_unlock(&mvm->d0i3_suspend_mutex);
2074 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
2075 _iwl_mvm_exit_d0i3(mvm);
2078 iwl_trans_resume(trans);
2080 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
2081 int ret = iwl_mvm_exit_d0i3(mvm->hw->priv);
2086 * d0i3 exit will be deferred until reconfig_complete.
2087 * make sure there we are out of d0i3.
2093 int iwl_mvm_resume(struct ieee80211_hw *hw)
2095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2098 if (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3)
2099 ret = iwl_mvm_resume_d0i3(mvm);
2101 ret = iwl_mvm_resume_d3(mvm);
2103 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2105 iwl_mvm_resume_tcm(mvm);
2107 iwl_fw_runtime_resume(&mvm->fwrt);
2112 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2116 device_set_wakeup_enable(mvm->trans->dev, enabled);
2119 #ifdef CONFIG_IWLWIFI_DEBUGFS
2120 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2122 struct iwl_mvm *mvm = inode->i_private;
2125 if (mvm->d3_test_active)
2128 file->private_data = inode->i_private;
2130 ieee80211_stop_queues(mvm->hw);
2133 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
2135 iwl_mvm_pause_tcm(mvm, true);
2137 iwl_fw_runtime_suspend(&mvm->fwrt);
2139 /* start pseudo D3 */
2141 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2146 ieee80211_wake_queues(mvm->hw);
2149 mvm->d3_test_active = true;
2150 mvm->keep_vif = NULL;
2154 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2155 size_t count, loff_t *ppos)
2157 struct iwl_mvm *mvm = file->private_data;
2161 /* read pme_ptr if available */
2162 if (mvm->d3_test_pme_ptr) {
2163 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2164 mvm->d3_test_pme_ptr);
2169 if (msleep_interruptible(100))
2176 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2177 struct ieee80211_vif *vif)
2179 /* skip the one we keep connection on */
2183 if (vif->type == NL80211_IFTYPE_STATION)
2184 ieee80211_connection_loss(vif);
2187 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2189 struct iwl_mvm *mvm = inode->i_private;
2190 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2191 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2193 mvm->d3_test_active = false;
2195 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2198 __iwl_mvm_resume(mvm, true);
2201 iwl_mvm_resume_tcm(mvm);
2203 iwl_fw_runtime_resume(&mvm->fwrt);
2205 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2207 iwl_abort_notification_waits(&mvm->notif_wait);
2208 if (!unified_image) {
2209 int remaining_time = 10;
2211 ieee80211_restart_hw(mvm->hw);
2213 /* wait for restart and disconnect all interfaces */
2214 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2215 remaining_time > 0) {
2220 if (remaining_time == 0)
2221 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2224 ieee80211_iterate_active_interfaces_atomic(
2225 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2226 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2228 ieee80211_wake_queues(mvm->hw);
2233 const struct file_operations iwl_dbgfs_d3_test_ops = {
2234 .llseek = no_llseek,
2235 .open = iwl_mvm_d3_test_open,
2236 .read = iwl_mvm_d3_test_read,
2237 .release = iwl_mvm_d3_test_release,