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 - 2019 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 - 2019 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_v1(struct iwl_mvm *mvm,
389 struct cfg80211_wowlan *wowlan)
391 struct iwl_wowlan_patterns_cmd_v1 *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_v1);
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_send_patterns(struct iwl_mvm *mvm,
430 struct cfg80211_wowlan *wowlan)
432 struct iwl_wowlan_patterns_cmd *pattern_cmd;
433 struct iwl_host_cmd cmd = {
434 .id = WOWLAN_PATTERNS,
435 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
439 if (!wowlan->n_patterns)
442 cmd.len[0] = sizeof(*pattern_cmd) +
443 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
445 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
449 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
451 for (i = 0; i < wowlan->n_patterns; i++) {
452 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
454 pattern_cmd->patterns[i].pattern_type =
455 WOWLAN_PATTERN_TYPE_BITMASK;
457 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
458 wowlan->patterns[i].mask, mask_len);
459 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
460 wowlan->patterns[i].pattern,
461 wowlan->patterns[i].pattern_len);
462 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
463 pattern_cmd->patterns[i].u.bitmask.pattern_size =
464 wowlan->patterns[i].pattern_len;
467 cmd.data[0] = pattern_cmd;
468 err = iwl_mvm_send_cmd(mvm, &cmd);
473 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
474 struct ieee80211_sta *ap_sta)
476 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
477 struct ieee80211_chanctx_conf *ctx;
478 u8 chains_static, chains_dynamic;
479 struct cfg80211_chan_def chandef;
481 struct iwl_binding_cmd_v1 binding_cmd = {};
482 struct iwl_time_quota_cmd quota_cmd = {};
483 struct iwl_time_quota_data *quota;
486 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
489 /* add back the PHY */
490 if (WARN_ON(!mvmvif->phy_ctxt))
494 ctx = rcu_dereference(vif->chanctx_conf);
500 chains_static = ctx->rx_chains_static;
501 chains_dynamic = ctx->rx_chains_dynamic;
504 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
505 chains_static, chains_dynamic);
509 /* add back the MAC */
510 mvmvif->uploaded = false;
512 if (WARN_ON(!vif->bss_conf.assoc))
515 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
519 /* add back binding - XXX refactor? */
520 binding_cmd.id_and_color =
521 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
522 mvmvif->phy_ctxt->color));
523 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
525 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
526 mvmvif->phy_ctxt->color));
527 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
529 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
530 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
533 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
534 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
537 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
542 IWL_ERR(mvm, "Binding command failed: %u\n", status);
546 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
549 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
551 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
556 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0);
557 quota->id_and_color =
558 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
559 mvmvif->phy_ctxt->color));
560 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
561 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
563 for (i = 1; i < MAX_BINDINGS; i++) {
564 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i);
565 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
568 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
569 iwl_mvm_quota_cmd_size(mvm), "a_cmd);
571 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
573 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
574 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
579 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
580 struct ieee80211_vif *vif)
582 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
583 struct iwl_nonqos_seq_query_cmd query_cmd = {
584 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
586 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
589 struct iwl_host_cmd cmd = {
590 .id = NON_QOS_TX_COUNTER_CMD,
591 .flags = CMD_WANT_SKB,
596 cmd.data[0] = &query_cmd;
597 cmd.len[0] = sizeof(query_cmd);
599 err = iwl_mvm_send_cmd(mvm, &cmd);
603 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
604 if (size < sizeof(__le16)) {
607 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
608 /* firmware returns next, not last-used seqno */
609 err = (u16) (err - 0x10);
616 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
618 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
619 struct iwl_nonqos_seq_query_cmd query_cmd = {
620 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
622 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
624 .value = cpu_to_le16(mvmvif->seqno),
627 /* return if called during restart, not resume from D3 */
628 if (!mvmvif->seqno_valid)
631 mvmvif->seqno_valid = false;
633 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
634 sizeof(query_cmd), &query_cmd))
635 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
638 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
640 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
642 iwl_mvm_stop_device(mvm);
644 * Set the HW restart bit -- this is mostly true as we're
645 * going to load new firmware and reprogram that, though
646 * the reprogramming is going to be manual to avoid adding
647 * all the MACs that aren't support.
648 * We don't have to clear up everything though because the
649 * reprogramming is manual. When we resume, we'll actually
650 * go through a proper restart sequence again to switch
651 * back to the runtime firmware image.
653 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
655 /* the fw is reset, so all the keys are cleared */
656 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
663 return iwl_mvm_load_d3_fw(mvm);
667 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
668 struct cfg80211_wowlan *wowlan,
669 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
670 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
671 struct ieee80211_sta *ap_sta)
674 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
676 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
678 wowlan_config_cmd->is_11n_connection =
679 ap_sta->ht_cap.ht_supported;
680 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
681 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
683 /* Query the last used seqno and set it */
684 ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
688 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
690 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
692 if (wowlan->disconnect)
693 wowlan_config_cmd->wakeup_filter |=
694 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
695 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
696 if (wowlan->magic_pkt)
697 wowlan_config_cmd->wakeup_filter |=
698 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
699 if (wowlan->gtk_rekey_failure)
700 wowlan_config_cmd->wakeup_filter |=
701 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
702 if (wowlan->eap_identity_req)
703 wowlan_config_cmd->wakeup_filter |=
704 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
705 if (wowlan->four_way_handshake)
706 wowlan_config_cmd->wakeup_filter |=
707 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
708 if (wowlan->n_patterns)
709 wowlan_config_cmd->wakeup_filter |=
710 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
712 if (wowlan->rfkill_release)
713 wowlan_config_cmd->wakeup_filter |=
714 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
718 * Set the "link change" (really "link lost") flag as well
719 * since that implies losing the TCP connection.
721 wowlan_config_cmd->wakeup_filter |=
722 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
723 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
724 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
725 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
729 wowlan_config_cmd->wakeup_filter |=
730 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
731 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
732 IWL_WOWLAN_WAKEUP_RX_FRAME |
733 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
740 iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm *mvm,
741 struct ieee80211_vif *vif,
742 void (*iter)(struct ieee80211_hw *hw,
743 struct ieee80211_vif *vif,
744 struct ieee80211_sta *sta,
745 struct ieee80211_key_conf *key,
749 struct ieee80211_sta *ap_sta;
753 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id]);
754 if (IS_ERR_OR_NULL(ap_sta))
757 ieee80211_iter_keys_rcu(mvm->hw, vif, iter, data);
762 int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
763 struct ieee80211_vif *vif,
767 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
768 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
769 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
770 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
771 struct wowlan_key_data key_data = {
772 .configure_keys = !d0i3 && !unified,
773 .use_rsc_tsc = false,
777 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
780 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
781 if (!key_data.rsc_tsc)
785 * if we have to configure keys, call ieee80211_iter_keys(),
786 * as we need non-atomic context in order to take the
788 * for the d0i3 we can't use ieee80211_iter_keys(), as
789 * taking (almost) any mutex might result in deadlock.
793 * Note that currently we don't propagate cmd_flags
794 * to the iterator. In case of key_data.configure_keys,
795 * all the configured commands are SYNC, and
796 * iwl_mvm_wowlan_program_keys() will take care of
797 * locking/unlocking mvm->mutex.
799 ieee80211_iter_keys(mvm->hw, vif,
800 iwl_mvm_wowlan_program_keys,
803 iwl_mvm_iter_d0i3_ap_keys(mvm, vif,
804 iwl_mvm_wowlan_program_keys,
808 if (key_data.error) {
813 if (key_data.use_rsc_tsc) {
814 ret = iwl_mvm_send_cmd_pdu(mvm,
815 WOWLAN_TSC_RSC_PARAM, cmd_flags,
816 sizeof(*key_data.rsc_tsc),
822 if (key_data.use_tkip &&
823 !fw_has_api(&mvm->fw->ucode_capa,
824 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
825 ret = iwl_mvm_send_cmd_pdu(mvm,
827 cmd_flags, sizeof(tkip_cmd),
833 /* configure rekey data only if offloaded rekey is supported (d3) */
834 if (mvmvif->rekey_data.valid && !d0i3) {
835 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
836 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
838 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
839 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
841 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
842 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
844 ret = iwl_mvm_send_cmd_pdu(mvm,
845 WOWLAN_KEK_KCK_MATERIAL, cmd_flags,
853 kfree(key_data.rsc_tsc);
858 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
859 struct cfg80211_wowlan *wowlan,
860 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
861 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
862 struct ieee80211_sta *ap_sta)
865 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
866 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
868 if (!unified_image) {
869 ret = iwl_mvm_switch_to_d3(mvm);
873 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
878 if (!iwlwifi_mod_params.swcrypto) {
880 * This needs to be unlocked due to lock ordering
881 * constraints. Since we're in the suspend path
882 * that isn't really a problem though.
884 mutex_unlock(&mvm->mutex);
885 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, false,
887 mutex_lock(&mvm->mutex);
892 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
893 sizeof(*wowlan_config_cmd),
898 if (fw_has_api(&mvm->fw->ucode_capa,
899 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
900 ret = iwl_mvm_send_patterns(mvm, wowlan);
902 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
906 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
910 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
911 struct cfg80211_wowlan *wowlan,
912 struct cfg80211_sched_scan_request *nd_config,
913 struct ieee80211_vif *vif)
915 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
917 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
918 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
920 if (!unified_image) {
921 ret = iwl_mvm_switch_to_d3(mvm);
925 /* In theory, we wouldn't have to stop a running sched
926 * scan in order to start another one (for
927 * net-detect). But in practice this doesn't seem to
928 * work properly, so stop any running sched_scan now.
930 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
935 /* rfkill release can be either for wowlan or netdetect */
936 if (wowlan->rfkill_release)
937 wowlan_config_cmd.wakeup_filter |=
938 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
940 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
941 sizeof(wowlan_config_cmd),
946 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
947 IWL_MVM_SCAN_NETDETECT);
951 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
954 /* save the sched scan matchsets... */
955 if (nd_config->n_match_sets) {
956 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
957 sizeof(*nd_config->match_sets) *
958 nd_config->n_match_sets,
960 if (mvm->nd_match_sets)
961 mvm->n_nd_match_sets = nd_config->n_match_sets;
964 /* ...and the sched scan channels for later reporting */
965 mvm->nd_channels = kmemdup(nd_config->channels,
966 sizeof(*nd_config->channels) *
967 nd_config->n_channels,
969 if (mvm->nd_channels)
970 mvm->n_nd_channels = nd_config->n_channels;
975 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
977 kfree(mvm->nd_match_sets);
978 mvm->nd_match_sets = NULL;
979 mvm->n_nd_match_sets = 0;
980 kfree(mvm->nd_channels);
981 mvm->nd_channels = NULL;
982 mvm->n_nd_channels = 0;
985 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
986 struct cfg80211_wowlan *wowlan,
989 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
990 struct ieee80211_vif *vif = NULL;
991 struct iwl_mvm_vif *mvmvif = NULL;
992 struct ieee80211_sta *ap_sta = NULL;
993 struct iwl_d3_manager_config d3_cfg_cmd_data = {
995 * Program the minimum sleep time to 10 seconds, as many
996 * platforms have issues processing a wakeup signal while
997 * still being in the process of suspending.
999 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1001 struct iwl_host_cmd d3_cfg_cmd = {
1002 .id = D3_CONFIG_CMD,
1003 .flags = CMD_WANT_SKB,
1004 .data[0] = &d3_cfg_cmd_data,
1005 .len[0] = sizeof(d3_cfg_cmd_data),
1008 int len __maybe_unused;
1009 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1010 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1014 * mac80211 shouldn't get here, but for D3 test
1015 * it doesn't warrant a warning
1021 mutex_lock(&mvm->mutex);
1023 vif = iwl_mvm_get_bss_vif(mvm);
1024 if (IS_ERR_OR_NULL(vif)) {
1029 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1031 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
1032 /* if we're not associated, this must be netdetect */
1033 if (!wowlan->nd_config) {
1038 ret = iwl_mvm_netdetect_config(
1039 mvm, wowlan, wowlan->nd_config, vif);
1043 mvm->net_detect = true;
1045 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1047 ap_sta = rcu_dereference_protected(
1048 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1049 lockdep_is_held(&mvm->mutex));
1050 if (IS_ERR_OR_NULL(ap_sta)) {
1055 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1056 vif, mvmvif, ap_sta);
1059 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1060 vif, mvmvif, ap_sta);
1064 mvm->net_detect = false;
1067 ret = iwl_mvm_power_update_device(mvm);
1071 ret = iwl_mvm_power_update_mac(mvm);
1075 #ifdef CONFIG_IWLWIFI_DEBUGFS
1076 if (mvm->d3_wake_sysassert)
1077 d3_cfg_cmd_data.wakeup_flags |=
1078 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1082 * TODO: this is needed because the firmware is not stopping
1083 * the recording automatically before entering D3. This can
1084 * be removed once the FW starts doing that.
1086 _iwl_fw_dbg_stop_recording(mvm->fwrt.trans, NULL);
1088 /* must be last -- this switches firmware state */
1089 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1092 #ifdef CONFIG_IWLWIFI_DEBUGFS
1093 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1094 if (len >= sizeof(u32)) {
1095 mvm->d3_test_pme_ptr =
1096 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1099 iwl_free_resp(&d3_cfg_cmd);
1101 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1103 iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1106 iwl_mvm_free_nd(mvm);
1108 if (!unified_image) {
1109 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1110 if (mvm->fw_restart > 0) {
1112 ieee80211_restart_hw(mvm->hw);
1117 mutex_unlock(&mvm->mutex);
1122 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm)
1124 struct iwl_notification_wait wait_d3;
1125 static const u16 d3_notif[] = { D3_CONFIG_CMD };
1128 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3,
1129 d3_notif, ARRAY_SIZE(d3_notif),
1132 ret = iwl_mvm_enter_d0i3(mvm->hw->priv);
1136 ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ);
1141 iwl_remove_notification(&mvm->notif_wait, &wait_d3);
1145 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1147 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1148 struct iwl_trans *trans = mvm->trans;
1151 /* make sure the d0i3 exit work is not pending */
1152 flush_work(&mvm->d0i3_exit_work);
1153 iwl_mvm_pause_tcm(mvm, true);
1155 iwl_fw_runtime_suspend(&mvm->fwrt);
1157 ret = iwl_trans_suspend(trans);
1162 trans->system_pm_mode = IWL_PLAT_PM_MODE_D0I3;
1164 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
1165 ret = iwl_mvm_enter_d0i3_sync(mvm);
1171 mutex_lock(&mvm->d0i3_suspend_mutex);
1172 __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1173 mutex_unlock(&mvm->d0i3_suspend_mutex);
1175 iwl_trans_d3_suspend(trans, false, false);
1180 trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1182 return __iwl_mvm_suspend(hw, wowlan, false);
1185 /* converted data from the different status responses */
1186 struct iwl_wowlan_status_data {
1190 u32 wake_packet_length;
1191 u32 wake_packet_bufsize;
1192 const u8 *wake_packet;
1195 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1196 struct ieee80211_vif *vif,
1197 struct iwl_wowlan_status_data *status)
1199 struct sk_buff *pkt = NULL;
1200 struct cfg80211_wowlan_wakeup wakeup = {
1203 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1204 u32 reasons = status->wakeup_reasons;
1206 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1207 wakeup_report = NULL;
1211 pm_wakeup_event(mvm->dev, 0);
1213 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1214 wakeup.magic_pkt = true;
1216 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1217 wakeup.pattern_idx =
1218 status->pattern_number;
1220 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1221 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1222 wakeup.disconnect = true;
1224 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1225 wakeup.gtk_rekey_failure = true;
1227 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1228 wakeup.rfkill_release = true;
1230 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1231 wakeup.eap_identity_req = true;
1233 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1234 wakeup.four_way_handshake = true;
1236 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1237 wakeup.tcp_connlost = true;
1239 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1240 wakeup.tcp_nomoretokens = true;
1242 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1243 wakeup.tcp_match = true;
1245 if (status->wake_packet_bufsize) {
1246 int pktsize = status->wake_packet_bufsize;
1247 int pktlen = status->wake_packet_length;
1248 const u8 *pktdata = status->wake_packet;
1249 struct ieee80211_hdr *hdr = (void *)pktdata;
1250 int truncated = pktlen - pktsize;
1252 /* this would be a firmware bug */
1253 if (WARN_ON_ONCE(truncated < 0))
1256 if (ieee80211_is_data(hdr->frame_control)) {
1257 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1258 int ivlen = 0, icvlen = 4; /* also FCS */
1260 pkt = alloc_skb(pktsize, GFP_KERNEL);
1264 skb_put_data(pkt, pktdata, hdrlen);
1268 if (ieee80211_has_protected(hdr->frame_control)) {
1270 * This is unlocked and using gtk_i(c)vlen,
1271 * but since everything is under RTNL still
1272 * that's not really a problem - changing
1273 * it would be difficult.
1275 if (is_multicast_ether_addr(hdr->addr1)) {
1276 ivlen = mvm->gtk_ivlen;
1277 icvlen += mvm->gtk_icvlen;
1279 ivlen = mvm->ptk_ivlen;
1280 icvlen += mvm->ptk_icvlen;
1284 /* if truncated, FCS/ICV is (partially) gone */
1285 if (truncated >= icvlen) {
1287 truncated -= icvlen;
1289 icvlen -= truncated;
1293 pktsize -= ivlen + icvlen;
1296 skb_put_data(pkt, pktdata, pktsize);
1298 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1300 wakeup.packet = pkt->data;
1301 wakeup.packet_present_len = pkt->len;
1302 wakeup.packet_len = pkt->len - truncated;
1303 wakeup.packet_80211 = false;
1307 if (truncated >= 4) {
1311 fcslen -= truncated;
1315 wakeup.packet = status->wake_packet;
1316 wakeup.packet_present_len = pktsize;
1317 wakeup.packet_len = pktlen - truncated;
1318 wakeup.packet_80211 = true;
1323 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1327 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1328 struct ieee80211_key_seq *seq)
1332 pn = le64_to_cpu(sc->pn);
1333 seq->ccmp.pn[0] = pn >> 40;
1334 seq->ccmp.pn[1] = pn >> 32;
1335 seq->ccmp.pn[2] = pn >> 24;
1336 seq->ccmp.pn[3] = pn >> 16;
1337 seq->ccmp.pn[4] = pn >> 8;
1338 seq->ccmp.pn[5] = pn;
1341 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1342 struct ieee80211_key_seq *seq)
1344 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1345 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1348 static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs,
1349 struct ieee80211_sta *sta,
1350 struct ieee80211_key_conf *key)
1354 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1356 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
1357 struct iwl_mvm_sta *mvmsta;
1358 struct iwl_mvm_key_pn *ptk_pn;
1360 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1362 ptk_pn = rcu_dereference_protected(mvmsta->ptk_pn[key->keyidx],
1363 lockdep_is_held(&mvm->mutex));
1364 if (WARN_ON(!ptk_pn))
1367 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1368 struct ieee80211_key_seq seq = {};
1371 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1372 ieee80211_set_key_rx_seq(key, tid, &seq);
1373 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1374 memcpy(ptk_pn->q[i].pn[tid],
1375 seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1378 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1379 struct ieee80211_key_seq seq = {};
1381 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1382 ieee80211_set_key_rx_seq(key, tid, &seq);
1387 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1388 struct ieee80211_key_conf *key)
1392 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1394 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1395 struct ieee80211_key_seq seq = {};
1397 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1398 ieee80211_set_key_rx_seq(key, tid, &seq);
1402 static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
1403 struct ieee80211_key_conf *key,
1404 struct iwl_wowlan_status *status)
1406 union iwl_all_tsc_rsc *rsc = &status->gtk[0].rsc.all_tsc_rsc;
1408 switch (key->cipher) {
1409 case WLAN_CIPHER_SUITE_CCMP:
1410 iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key);
1412 case WLAN_CIPHER_SUITE_TKIP:
1413 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1420 struct iwl_mvm_d3_gtk_iter_data {
1421 struct iwl_mvm *mvm;
1422 struct iwl_wowlan_status *status;
1425 bool find_phase, unhandled_cipher;
1429 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1430 struct ieee80211_vif *vif,
1431 struct ieee80211_sta *sta,
1432 struct ieee80211_key_conf *key,
1435 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1437 if (data->unhandled_cipher)
1440 switch (key->cipher) {
1441 case WLAN_CIPHER_SUITE_WEP40:
1442 case WLAN_CIPHER_SUITE_WEP104:
1443 /* ignore WEP completely, nothing to do */
1445 case WLAN_CIPHER_SUITE_CCMP:
1446 case WLAN_CIPHER_SUITE_TKIP:
1447 /* we support these */
1450 /* everything else (even CMAC for MFP) - disconnect from AP */
1451 data->unhandled_cipher = true;
1458 * pairwise key - update sequence counters only;
1459 * note that this assumes no TDLS sessions are active
1462 struct ieee80211_key_seq seq = {};
1463 union iwl_all_tsc_rsc *sc =
1464 &data->status->gtk[0].rsc.all_tsc_rsc;
1466 if (data->find_phase)
1469 switch (key->cipher) {
1470 case WLAN_CIPHER_SUITE_CCMP:
1471 iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
1473 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
1475 case WLAN_CIPHER_SUITE_TKIP:
1476 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1477 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1478 atomic64_set(&key->tx_pn,
1479 (u64)seq.tkip.iv16 |
1480 ((u64)seq.tkip.iv32 << 16));
1484 /* that's it for this key */
1488 if (data->find_phase) {
1489 data->last_gtk = key;
1490 data->cipher = key->cipher;
1494 if (data->status->num_of_gtk_rekeys)
1495 ieee80211_remove_key(key);
1496 else if (data->last_gtk == key)
1497 iwl_mvm_set_key_rx_seq(data->mvm, key, data->status);
1500 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1501 struct ieee80211_vif *vif,
1502 struct iwl_wowlan_status *status)
1504 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1505 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1509 u32 disconnection_reasons =
1510 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1511 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1513 if (!status || !vif->bss_conf.bssid)
1516 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1519 /* find last GTK that we used initially, if any */
1520 gtkdata.find_phase = true;
1521 ieee80211_iter_keys(mvm->hw, vif,
1522 iwl_mvm_d3_update_keys, >kdata);
1523 /* not trying to keep connections with MFP/unhandled ciphers */
1524 if (gtkdata.unhandled_cipher)
1526 if (!gtkdata.num_keys)
1528 if (!gtkdata.last_gtk)
1532 * invalidate all other GTKs that might still exist and update
1533 * the one that we used
1535 gtkdata.find_phase = false;
1536 ieee80211_iter_keys(mvm->hw, vif,
1537 iwl_mvm_d3_update_keys, >kdata);
1539 if (status->num_of_gtk_rekeys) {
1540 struct ieee80211_key_conf *key;
1542 struct ieee80211_key_conf conf;
1545 .conf.cipher = gtkdata.cipher,
1547 iwlmvm_wowlan_gtk_idx(&status->gtk[0]),
1551 switch (gtkdata.cipher) {
1552 case WLAN_CIPHER_SUITE_CCMP:
1553 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1554 memcpy(conf.conf.key, status->gtk[0].key,
1557 case WLAN_CIPHER_SUITE_TKIP:
1558 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1559 memcpy(conf.conf.key, status->gtk[0].key, 16);
1560 /* leave TX MIC key zeroed, we don't use it anyway */
1561 memcpy(conf.conf.key +
1562 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1563 status->gtk[0].tkip_mic_key, 8);
1567 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1570 iwl_mvm_set_key_rx_seq(mvm, key, status);
1573 cpu_to_be64(le64_to_cpu(status->replay_ctr));
1575 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1576 (void *)&replay_ctr, GFP_KERNEL);
1580 mvmvif->seqno_valid = true;
1581 /* +0x10 because the set API expects next-to-use, not last-used */
1582 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1587 struct iwl_wowlan_status *iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm)
1589 struct iwl_wowlan_status *v7, *status;
1590 struct iwl_host_cmd cmd = {
1591 .id = WOWLAN_GET_STATUSES,
1592 .flags = CMD_WANT_SKB,
1594 int ret, len, status_size;
1596 lockdep_assert_held(&mvm->mutex);
1598 ret = iwl_mvm_send_cmd(mvm, &cmd);
1600 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
1601 return ERR_PTR(ret);
1604 if (!fw_has_api(&mvm->fw->ucode_capa,
1605 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
1606 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
1609 status_size = sizeof(*v6);
1610 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1612 if (len < status_size) {
1613 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1614 status = ERR_PTR(-EIO);
1618 data_size = ALIGN(le32_to_cpu(v6->wake_packet_bufsize), 4);
1620 if (len != (status_size + data_size)) {
1621 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1622 status = ERR_PTR(-EIO);
1626 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL);
1630 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
1631 sizeof(status->gtk[0].key));
1632 BUILD_BUG_ON(sizeof(v6->gtk.tkip_mic_key) >
1633 sizeof(status->gtk[0].tkip_mic_key));
1635 /* copy GTK info to the right place */
1636 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
1637 sizeof(v6->gtk.decrypt_key));
1638 memcpy(status->gtk[0].tkip_mic_key, v6->gtk.tkip_mic_key,
1639 sizeof(v6->gtk.tkip_mic_key));
1640 memcpy(&status->gtk[0].rsc, &v6->gtk.rsc,
1641 sizeof(status->gtk[0].rsc));
1643 /* hardcode the key length to 16 since v6 only supports 16 */
1644 status->gtk[0].key_len = 16;
1647 * The key index only uses 2 bits (values 0 to 3) and
1648 * we always set bit 7 which means this is the
1649 * currently used key.
1651 status->gtk[0].key_flags = v6->gtk.key_index | BIT(7);
1653 status->replay_ctr = v6->replay_ctr;
1655 /* everything starting from pattern_number is identical */
1656 memcpy(&status->pattern_number, &v6->pattern_number,
1657 offsetof(struct iwl_wowlan_status, wake_packet) -
1658 offsetof(struct iwl_wowlan_status, pattern_number) +
1664 v7 = (void *)cmd.resp_pkt->data;
1665 status_size = sizeof(*v7);
1666 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1668 if (len < status_size) {
1669 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1670 status = ERR_PTR(-EIO);
1674 if (len != (status_size +
1675 ALIGN(le32_to_cpu(v7->wake_packet_bufsize), 4))) {
1676 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1677 status = ERR_PTR(-EIO);
1681 status = kmemdup(v7, len, GFP_KERNEL);
1684 iwl_free_resp(&cmd);
1688 static struct iwl_wowlan_status *
1689 iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm)
1693 /* only for tracing for now */
1694 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL);
1696 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1698 return iwl_mvm_send_wowlan_get_status(mvm);
1701 /* releases the MVM mutex */
1702 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1703 struct ieee80211_vif *vif)
1705 struct iwl_wowlan_status_data status;
1706 struct iwl_wowlan_status *fw_status;
1709 struct iwl_mvm_sta *mvm_ap_sta;
1711 fw_status = iwl_mvm_get_wakeup_status(mvm);
1712 if (IS_ERR_OR_NULL(fw_status))
1715 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
1716 for (i = 0; i < 8; i++)
1717 status.qos_seq_ctr[i] =
1718 le16_to_cpu(fw_status->qos_seq_ctr[i]);
1719 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
1720 status.wake_packet_length =
1721 le32_to_cpu(fw_status->wake_packet_length);
1722 status.wake_packet_bufsize =
1723 le32_to_cpu(fw_status->wake_packet_bufsize);
1724 status.wake_packet = fw_status->wake_packet;
1726 /* still at hard-coded place 0 for D3 image */
1727 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
1731 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1732 u16 seq = status.qos_seq_ctr[i];
1733 /* firmware stores last-used value, we store next value */
1735 mvm_ap_sta->tid_data[i].seq_number = seq;
1738 /* now we have all the data we need, unlock to avoid mac80211 issues */
1739 mutex_unlock(&mvm->mutex);
1741 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
1743 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
1751 mutex_unlock(&mvm->mutex);
1755 void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
1756 struct ieee80211_vif *vif,
1757 struct iwl_wowlan_status *status)
1759 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1765 * rekey handling requires taking locks that can't be taken now.
1766 * however, d0i3 doesn't offload rekey, so we're fine.
1768 if (WARN_ON_ONCE(status->num_of_gtk_rekeys))
1771 /* find last GTK that we used initially, if any */
1772 gtkdata.find_phase = true;
1773 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
1775 gtkdata.find_phase = false;
1776 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata);
1779 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
1780 IWL_SCAN_MAX_PROFILES)
1782 struct iwl_mvm_nd_query_results {
1783 u32 matched_profiles;
1784 u8 matches[ND_QUERY_BUF_LEN];
1788 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
1789 struct iwl_mvm_nd_query_results *results)
1791 struct iwl_scan_offload_profiles_query *query;
1792 struct iwl_host_cmd cmd = {
1793 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
1794 .flags = CMD_WANT_SKB,
1797 size_t query_len, matches_len;
1799 ret = iwl_mvm_send_cmd(mvm, &cmd);
1801 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
1805 if (fw_has_api(&mvm->fw->ucode_capa,
1806 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1807 query_len = sizeof(struct iwl_scan_offload_profiles_query);
1808 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
1809 IWL_SCAN_MAX_PROFILES;
1811 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
1812 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
1813 IWL_SCAN_MAX_PROFILES;
1816 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1817 if (len < query_len) {
1818 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
1823 query = (void *)cmd.resp_pkt->data;
1825 results->matched_profiles = le32_to_cpu(query->matched_profiles);
1826 memcpy(results->matches, query->matches, matches_len);
1828 #ifdef CONFIG_IWLWIFI_DEBUGFS
1829 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
1833 iwl_free_resp(&cmd);
1837 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
1838 struct iwl_mvm_nd_query_results *query,
1843 if (fw_has_api(&mvm->fw->ucode_capa,
1844 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1845 struct iwl_scan_offload_profile_match *matches =
1846 (struct iwl_scan_offload_profile_match *)query->matches;
1848 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
1849 n_chans += hweight8(matches[idx].matching_channels[i]);
1851 struct iwl_scan_offload_profile_match_v1 *matches =
1852 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
1854 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
1855 n_chans += hweight8(matches[idx].matching_channels[i]);
1861 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
1862 struct iwl_mvm_nd_query_results *query,
1863 struct cfg80211_wowlan_nd_match *match,
1868 if (fw_has_api(&mvm->fw->ucode_capa,
1869 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1870 struct iwl_scan_offload_profile_match *matches =
1871 (struct iwl_scan_offload_profile_match *)query->matches;
1873 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
1874 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
1875 match->channels[match->n_channels++] =
1876 mvm->nd_channels[i]->center_freq;
1878 struct iwl_scan_offload_profile_match_v1 *matches =
1879 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
1881 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
1882 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
1883 match->channels[match->n_channels++] =
1884 mvm->nd_channels[i]->center_freq;
1888 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
1889 struct ieee80211_vif *vif)
1891 struct cfg80211_wowlan_nd_info *net_detect = NULL;
1892 struct cfg80211_wowlan_wakeup wakeup = {
1895 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1896 struct iwl_mvm_nd_query_results query;
1897 struct iwl_wowlan_status *fw_status;
1898 unsigned long matched_profiles;
1900 int i, n_matches, ret;
1902 fw_status = iwl_mvm_get_wakeup_status(mvm);
1903 if (!IS_ERR_OR_NULL(fw_status)) {
1904 reasons = le32_to_cpu(fw_status->wakeup_reasons);
1908 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1909 wakeup.rfkill_release = true;
1911 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
1914 ret = iwl_mvm_netdetect_query_results(mvm, &query);
1915 if (ret || !query.matched_profiles) {
1916 wakeup_report = NULL;
1920 matched_profiles = query.matched_profiles;
1921 if (mvm->n_nd_match_sets) {
1922 n_matches = hweight_long(matched_profiles);
1924 IWL_ERR(mvm, "no net detect match information available\n");
1928 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
1930 if (!net_detect || !n_matches)
1933 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
1934 struct cfg80211_wowlan_nd_match *match;
1935 int idx, n_channels = 0;
1937 n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
1939 match = kzalloc(struct_size(match, channels, n_channels),
1944 net_detect->matches[net_detect->n_matches++] = match;
1946 /* We inverted the order of the SSIDs in the scan
1947 * request, so invert the index here.
1949 idx = mvm->n_nd_match_sets - i - 1;
1950 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
1951 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
1952 match->ssid.ssid_len);
1954 if (mvm->n_nd_channels < n_channels)
1957 iwl_mvm_query_set_freqs(mvm, &query, match, i);
1961 wakeup.net_detect = net_detect;
1963 iwl_mvm_free_nd(mvm);
1965 mutex_unlock(&mvm->mutex);
1966 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1969 for (i = 0; i < net_detect->n_matches; i++)
1970 kfree(net_detect->matches[i]);
1975 static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
1977 #ifdef CONFIG_IWLWIFI_DEBUGFS
1978 const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN];
1979 u32 len = img->sec[IWL_UCODE_SECTION_DATA].len;
1980 u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1982 if (!mvm->store_d3_resume_sram)
1985 if (!mvm->d3_resume_sram) {
1986 mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL);
1987 if (!mvm->d3_resume_sram)
1991 iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len);
1995 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
1996 struct ieee80211_vif *vif)
1998 /* skip the one we keep connection on */
2002 if (vif->type == NL80211_IFTYPE_STATION)
2003 ieee80211_resume_disconnect(vif);
2006 static int iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2007 struct ieee80211_vif *vif)
2009 u32 base = mvm->trans->lmac_error_event_table[0];
2010 struct error_table_start {
2011 /* cf. struct iwl_error_event_table */
2016 iwl_trans_read_mem_bytes(mvm->trans, base,
2017 &err_info, sizeof(err_info));
2019 if (err_info.valid &&
2020 err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2021 struct cfg80211_wowlan_wakeup wakeup = {
2022 .rfkill_release = true,
2024 ieee80211_report_wowlan_wakeup(vif, &wakeup, GFP_KERNEL);
2026 return err_info.valid;
2029 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
2031 struct ieee80211_vif *vif = NULL;
2033 enum iwl_d3_status d3_status;
2035 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2036 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2037 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2038 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
2040 mutex_lock(&mvm->mutex);
2042 /* get the BSS vif pointer again */
2043 vif = iwl_mvm_get_bss_vif(mvm);
2044 if (IS_ERR_OR_NULL(vif))
2047 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
2051 if (d3_status != IWL_D3_STATUS_ALIVE) {
2052 IWL_INFO(mvm, "Device was reset during suspend\n");
2056 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2057 /* query SRAM first in case we want event logging */
2058 iwl_mvm_read_d3_sram(mvm);
2060 if (iwl_mvm_check_rt_status(mvm, vif)) {
2061 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2062 iwl_mvm_dump_nic_error_log(mvm);
2063 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
2070 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2072 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2079 * Query the current location and source from the D3 firmware so we
2080 * can play it back when we re-intiailize the D0 firmware
2082 iwl_mvm_update_changed_regdom(mvm);
2085 /* Re-configure default SAR profile */
2086 iwl_mvm_sar_select_profile(mvm, 1, 1);
2088 if (mvm->net_detect) {
2089 /* If this is a non-unified image, we restart the FW,
2090 * so no need to stop the netdetect scan. If that
2091 * fails, continue and try to get the wake-up reasons,
2092 * but trigger a HW restart by keeping a failure code
2096 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2099 iwl_mvm_query_netdetect_reasons(mvm, vif);
2100 /* has unlocked the mutex, so skip that */
2103 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
2104 #ifdef CONFIG_IWLWIFI_DEBUGFS
2106 mvm->keep_vif = vif;
2108 /* has unlocked the mutex, so skip that */
2113 iwl_mvm_free_nd(mvm);
2114 mutex_unlock(&mvm->mutex);
2118 ieee80211_iterate_active_interfaces_rtnl(mvm->hw,
2119 IEEE80211_IFACE_ITER_NORMAL,
2120 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
2123 /* no need to reset the device in unified images, if successful */
2124 if (unified_image && !ret) {
2125 /* nothing else to do if we already sent D0I3_END_CMD */
2129 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2135 * Reconfigure the device in one of the following cases:
2136 * 1. We are not using a unified image
2137 * 2. We are using a unified image but had an error while exiting D3
2139 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
2141 * When switching images we return 1, which causes mac80211
2142 * to do a reconfig with IEEE80211_RECONFIG_TYPE_RESTART.
2143 * This type of reconfig calls iwl_mvm_restart_complete(),
2144 * where we unref the IWL_MVM_REF_UCODE_DOWN, so we need
2145 * to take the reference here.
2147 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
2152 static int iwl_mvm_resume_d3(struct iwl_mvm *mvm)
2154 iwl_trans_resume(mvm->trans);
2156 return __iwl_mvm_resume(mvm, false);
2159 static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm)
2162 enum iwl_d3_status d3_status;
2163 struct iwl_trans *trans = mvm->trans;
2165 iwl_trans_d3_resume(trans, &d3_status, false, false);
2168 * make sure to clear D0I3_DEFER_WAKEUP before
2169 * calling iwl_trans_resume(), which might wait
2170 * for d0i3 exit completion.
2172 mutex_lock(&mvm->d0i3_suspend_mutex);
2173 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
2174 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
2175 &mvm->d0i3_suspend_flags);
2176 mutex_unlock(&mvm->d0i3_suspend_mutex);
2178 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
2179 _iwl_mvm_exit_d0i3(mvm);
2182 iwl_trans_resume(trans);
2184 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
2185 int ret = iwl_mvm_exit_d0i3(mvm->hw->priv);
2190 * d0i3 exit will be deferred until reconfig_complete.
2191 * make sure there we are out of d0i3.
2197 int iwl_mvm_resume(struct ieee80211_hw *hw)
2199 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2202 if (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3)
2203 ret = iwl_mvm_resume_d0i3(mvm);
2205 ret = iwl_mvm_resume_d3(mvm);
2207 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2209 iwl_mvm_resume_tcm(mvm);
2211 iwl_fw_runtime_resume(&mvm->fwrt);
2216 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2218 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2220 device_set_wakeup_enable(mvm->trans->dev, enabled);
2223 #ifdef CONFIG_IWLWIFI_DEBUGFS
2224 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2226 struct iwl_mvm *mvm = inode->i_private;
2229 if (mvm->d3_test_active)
2232 file->private_data = inode->i_private;
2236 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
2238 iwl_mvm_pause_tcm(mvm, true);
2240 iwl_fw_runtime_suspend(&mvm->fwrt);
2242 /* start pseudo D3 */
2244 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2251 mvm->d3_test_active = true;
2252 mvm->keep_vif = NULL;
2256 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2257 size_t count, loff_t *ppos)
2259 struct iwl_mvm *mvm = file->private_data;
2263 /* read pme_ptr if available */
2264 if (mvm->d3_test_pme_ptr) {
2265 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2266 mvm->d3_test_pme_ptr);
2271 if (msleep_interruptible(100))
2278 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2279 struct ieee80211_vif *vif)
2281 /* skip the one we keep connection on */
2285 if (vif->type == NL80211_IFTYPE_STATION)
2286 ieee80211_connection_loss(vif);
2289 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2291 struct iwl_mvm *mvm = inode->i_private;
2292 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2293 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2295 mvm->d3_test_active = false;
2297 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2300 __iwl_mvm_resume(mvm, true);
2303 iwl_mvm_resume_tcm(mvm);
2305 iwl_fw_runtime_resume(&mvm->fwrt);
2307 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2309 iwl_abort_notification_waits(&mvm->notif_wait);
2310 if (!unified_image) {
2311 int remaining_time = 10;
2313 ieee80211_restart_hw(mvm->hw);
2315 /* wait for restart and disconnect all interfaces */
2316 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2317 remaining_time > 0) {
2322 if (remaining_time == 0)
2323 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2326 ieee80211_iterate_active_interfaces_atomic(
2327 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2328 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2333 const struct file_operations iwl_dbgfs_d3_test_ops = {
2334 .llseek = no_llseek,
2335 .open = iwl_mvm_d3_test_open,
2336 .read = iwl_mvm_d3_test_read,
2337 .release = iwl_mvm_d3_test_release,