1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause 2 /* 3 * Copyright (C) 2012-2014, 2018-2025 Intel Corporation 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH 5 * Copyright (C) 2016-2017 Intel Deutschland GmbH 6 */ 7 #include <linux/etherdevice.h> 8 #include <linux/ip.h> 9 #include <linux/fs.h> 10 #include <net/cfg80211.h> 11 #include <net/ipv6.h> 12 #include <net/tcp.h> 13 #include <net/addrconf.h> 14 #include "iwl-modparams.h" 15 #include "fw-api.h" 16 #include "mvm.h" 17 #include "fw/img.h" 18 19 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, 20 struct ieee80211_vif *vif, 21 struct cfg80211_gtk_rekey_data *data) 22 { 23 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 24 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 25 26 mutex_lock(&mvm->mutex); 27 28 mvmvif->rekey_data.kek_len = data->kek_len; 29 mvmvif->rekey_data.kck_len = data->kck_len; 30 memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len); 31 memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len); 32 mvmvif->rekey_data.akm = data->akm & 0xFF; 33 mvmvif->rekey_data.replay_ctr = 34 cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr)); 35 mvmvif->rekey_data.valid = true; 36 37 mutex_unlock(&mvm->mutex); 38 } 39 40 #if IS_ENABLED(CONFIG_IPV6) 41 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, 42 struct ieee80211_vif *vif, 43 struct inet6_dev *idev) 44 { 45 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 46 struct inet6_ifaddr *ifa; 47 int idx = 0; 48 49 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs)); 50 51 read_lock_bh(&idev->lock); 52 list_for_each_entry(ifa, &idev->addr_list, if_list) { 53 mvmvif->target_ipv6_addrs[idx] = ifa->addr; 54 if (ifa->flags & IFA_F_TENTATIVE) 55 __set_bit(idx, mvmvif->tentative_addrs); 56 idx++; 57 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) 58 break; 59 } 60 read_unlock_bh(&idev->lock); 61 62 mvmvif->num_target_ipv6_addrs = idx; 63 } 64 #endif 65 66 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, 67 struct ieee80211_vif *vif, int idx) 68 { 69 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 70 71 mvmvif->tx_key_idx = idx; 72 } 73 74 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) 75 { 76 int i; 77 78 for (i = 0; i < IWL_P1K_SIZE; i++) 79 out[i] = cpu_to_le16(p1k[i]); 80 } 81 82 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key, 83 struct iwl_mvm_key_pn *ptk_pn, 84 struct ieee80211_key_seq *seq, 85 int tid, int queues) 86 { 87 const u8 *ret = seq->ccmp.pn; 88 int i; 89 90 /* get the PN from mac80211, used on the default queue */ 91 ieee80211_get_key_rx_seq(key, tid, seq); 92 93 /* and use the internal data for the other queues */ 94 for (i = 1; i < queues; i++) { 95 const u8 *tmp = ptk_pn->q[i].pn[tid]; 96 97 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0) 98 ret = tmp; 99 } 100 101 return ret; 102 } 103 104 struct wowlan_key_reprogram_data { 105 bool error; 106 int wep_key_idx; 107 }; 108 109 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, 110 struct ieee80211_vif *vif, 111 struct ieee80211_sta *sta, 112 struct ieee80211_key_conf *key, 113 void *_data) 114 { 115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 117 struct wowlan_key_reprogram_data *data = _data; 118 int ret; 119 120 switch (key->cipher) { 121 case WLAN_CIPHER_SUITE_WEP40: 122 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ 123 DEFINE_RAW_FLEX(struct iwl_mvm_wep_key_cmd, wkc, wep_key, 1); 124 struct iwl_mvm_wep_key *wep_key = wkc->wep_key; 125 126 wkc->mac_id_n_color = 127 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 128 mvmvif->color)); 129 wkc->num_keys = 1; 130 /* firmware sets STA_KEY_FLG_WEP_13BYTES */ 131 wkc->decryption_type = STA_KEY_FLG_WEP; 132 wep_key->key_index = key->keyidx; 133 wep_key->key_size = key->keylen; 134 135 /* 136 * This will fail -- the key functions don't set support 137 * pairwise WEP keys. However, that's better than silently 138 * failing WoWLAN. Or maybe not? 139 */ 140 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) 141 break; 142 143 memcpy(&wep_key->key[3], key->key, key->keylen); 144 if (key->keyidx == mvmvif->tx_key_idx) { 145 /* TX key must be at offset 0 */ 146 wep_key->key_offset = 0; 147 } else { 148 /* others start at 1 */ 149 data->wep_key_idx++; 150 wep_key->key_offset = data->wep_key_idx; 151 } 152 153 mutex_lock(&mvm->mutex); 154 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, 155 __struct_size(wkc), wkc); 156 data->error = ret != 0; 157 158 mvm->ptk_ivlen = key->iv_len; 159 mvm->ptk_icvlen = key->icv_len; 160 mvm->gtk_ivlen = key->iv_len; 161 mvm->gtk_icvlen = key->icv_len; 162 mutex_unlock(&mvm->mutex); 163 164 /* don't upload key again */ 165 return; 166 } 167 default: 168 data->error = true; 169 return; 170 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 171 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 172 return; 173 case WLAN_CIPHER_SUITE_AES_CMAC: 174 /* 175 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them 176 * but we also shouldn't abort suspend due to that. It does have 177 * support for the IGTK key renewal, but doesn't really use the 178 * IGTK for anything. This means we could spuriously wake up or 179 * be deauthenticated, but that was considered acceptable. 180 */ 181 return; 182 case WLAN_CIPHER_SUITE_TKIP: 183 case WLAN_CIPHER_SUITE_CCMP: 184 case WLAN_CIPHER_SUITE_GCMP: 185 case WLAN_CIPHER_SUITE_GCMP_256: 186 break; 187 } 188 189 mutex_lock(&mvm->mutex); 190 /* 191 * The D3 firmware hardcodes the key offset 0 as the key it 192 * uses to transmit packets to the AP, i.e. the PTK. 193 */ 194 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { 195 mvm->ptk_ivlen = key->iv_len; 196 mvm->ptk_icvlen = key->icv_len; 197 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); 198 } else { 199 /* 200 * firmware only supports TSC/RSC for a single key, 201 * so if there are multiple keep overwriting them 202 * with new ones -- this relies on mac80211 doing 203 * list_add_tail(). 204 */ 205 mvm->gtk_ivlen = key->iv_len; 206 mvm->gtk_icvlen = key->icv_len; 207 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); 208 } 209 mutex_unlock(&mvm->mutex); 210 data->error = ret != 0; 211 } 212 213 struct wowlan_key_rsc_tsc_data { 214 struct iwl_wowlan_rsc_tsc_params_cmd_ver_2 *rsc_tsc; 215 bool have_rsc_tsc; 216 }; 217 218 static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw, 219 struct ieee80211_vif *vif, 220 struct ieee80211_sta *sta, 221 struct ieee80211_key_conf *key, 222 void *_data) 223 { 224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 225 struct wowlan_key_rsc_tsc_data *data = _data; 226 struct aes_sc *aes_sc; 227 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; 228 struct ieee80211_key_seq seq; 229 int i; 230 231 switch (key->cipher) { 232 default: 233 break; 234 case WLAN_CIPHER_SUITE_TKIP: 235 if (sta) { 236 u64 pn64; 237 238 tkip_sc = 239 data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; 240 tkip_tx_sc = 241 &data->rsc_tsc->all_tsc_rsc.tkip.tsc; 242 243 pn64 = atomic64_read(&key->tx_pn); 244 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); 245 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); 246 } else { 247 tkip_sc = 248 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; 249 } 250 251 /* 252 * For non-QoS this relies on the fact that both the uCode and 253 * mac80211 use TID 0 (as they need to avoid replay attacks) 254 * for checking the IV in the frames. 255 */ 256 for (i = 0; i < IWL_NUM_RSC; i++) { 257 ieee80211_get_key_rx_seq(key, i, &seq); 258 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); 259 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); 260 } 261 262 data->have_rsc_tsc = true; 263 break; 264 case WLAN_CIPHER_SUITE_CCMP: 265 case WLAN_CIPHER_SUITE_GCMP: 266 case WLAN_CIPHER_SUITE_GCMP_256: 267 if (sta) { 268 struct aes_sc *aes_tx_sc; 269 u64 pn64; 270 271 aes_sc = 272 data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; 273 aes_tx_sc = 274 &data->rsc_tsc->all_tsc_rsc.aes.tsc; 275 276 pn64 = atomic64_read(&key->tx_pn); 277 aes_tx_sc->pn = cpu_to_le64(pn64); 278 } else { 279 aes_sc = 280 data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; 281 } 282 283 /* 284 * For non-QoS this relies on the fact that both the uCode and 285 * mac80211/our RX code use TID 0 for checking the PN. 286 */ 287 if (sta && iwl_mvm_has_new_rx_api(mvm)) { 288 struct iwl_mvm_sta *mvmsta; 289 struct iwl_mvm_key_pn *ptk_pn; 290 const u8 *pn; 291 292 mvmsta = iwl_mvm_sta_from_mac80211(sta); 293 rcu_read_lock(); 294 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 295 if (WARN_ON(!ptk_pn)) { 296 rcu_read_unlock(); 297 break; 298 } 299 300 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 301 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, 302 mvm->trans->info.num_rxqs); 303 aes_sc[i].pn = cpu_to_le64((u64)pn[5] | 304 ((u64)pn[4] << 8) | 305 ((u64)pn[3] << 16) | 306 ((u64)pn[2] << 24) | 307 ((u64)pn[1] << 32) | 308 ((u64)pn[0] << 40)); 309 } 310 311 rcu_read_unlock(); 312 } else { 313 for (i = 0; i < IWL_NUM_RSC; i++) { 314 u8 *pn = seq.ccmp.pn; 315 316 ieee80211_get_key_rx_seq(key, i, &seq); 317 aes_sc[i].pn = cpu_to_le64((u64)pn[5] | 318 ((u64)pn[4] << 8) | 319 ((u64)pn[3] << 16) | 320 ((u64)pn[2] << 24) | 321 ((u64)pn[1] << 32) | 322 ((u64)pn[0] << 40)); 323 } 324 } 325 data->have_rsc_tsc = true; 326 break; 327 } 328 } 329 330 struct wowlan_key_rsc_v5_data { 331 struct iwl_wowlan_rsc_tsc_params_cmd *rsc; 332 bool have_rsc; 333 int gtks; 334 int gtk_ids[4]; 335 }; 336 337 static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw, 338 struct ieee80211_vif *vif, 339 struct ieee80211_sta *sta, 340 struct ieee80211_key_conf *key, 341 void *_data) 342 { 343 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 344 struct wowlan_key_rsc_v5_data *data = _data; 345 struct ieee80211_key_seq seq; 346 __le64 *rsc; 347 int i; 348 349 /* only for ciphers that can be PTK/GTK */ 350 switch (key->cipher) { 351 default: 352 return; 353 case WLAN_CIPHER_SUITE_TKIP: 354 case WLAN_CIPHER_SUITE_CCMP: 355 case WLAN_CIPHER_SUITE_GCMP: 356 case WLAN_CIPHER_SUITE_GCMP_256: 357 break; 358 } 359 360 if (sta) { 361 rsc = data->rsc->ucast_rsc; 362 } else { 363 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids))) 364 return; 365 data->gtk_ids[data->gtks] = key->keyidx; 366 rsc = data->rsc->mcast_rsc[data->gtks % 2]; 367 if (WARN_ON(key->keyidx >= 368 ARRAY_SIZE(data->rsc->mcast_key_id_map))) 369 return; 370 data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2; 371 if (data->gtks >= 2) { 372 int prev = data->gtks - 2; 373 int prev_idx = data->gtk_ids[prev]; 374 375 data->rsc->mcast_key_id_map[prev_idx] = 376 IWL_MCAST_KEY_MAP_INVALID; 377 } 378 data->gtks++; 379 } 380 381 switch (key->cipher) { 382 default: 383 WARN_ON(1); 384 break; 385 case WLAN_CIPHER_SUITE_TKIP: 386 387 /* 388 * For non-QoS this relies on the fact that both the uCode and 389 * mac80211 use TID 0 (as they need to avoid replay attacks) 390 * for checking the IV in the frames. 391 */ 392 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 393 ieee80211_get_key_rx_seq(key, i, &seq); 394 395 rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) | 396 seq.tkip.iv16); 397 } 398 399 data->have_rsc = true; 400 break; 401 case WLAN_CIPHER_SUITE_CCMP: 402 case WLAN_CIPHER_SUITE_GCMP: 403 case WLAN_CIPHER_SUITE_GCMP_256: 404 /* 405 * For non-QoS this relies on the fact that both the uCode and 406 * mac80211/our RX code use TID 0 for checking the PN. 407 */ 408 if (sta) { 409 struct iwl_mvm_sta *mvmsta; 410 struct iwl_mvm_key_pn *ptk_pn; 411 const u8 *pn; 412 413 mvmsta = iwl_mvm_sta_from_mac80211(sta); 414 rcu_read_lock(); 415 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 416 if (WARN_ON(!ptk_pn)) { 417 rcu_read_unlock(); 418 break; 419 } 420 421 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 422 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, 423 mvm->trans->info.num_rxqs); 424 rsc[i] = cpu_to_le64((u64)pn[5] | 425 ((u64)pn[4] << 8) | 426 ((u64)pn[3] << 16) | 427 ((u64)pn[2] << 24) | 428 ((u64)pn[1] << 32) | 429 ((u64)pn[0] << 40)); 430 } 431 432 rcu_read_unlock(); 433 } else { 434 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 435 u8 *pn = seq.ccmp.pn; 436 437 ieee80211_get_key_rx_seq(key, i, &seq); 438 rsc[i] = cpu_to_le64((u64)pn[5] | 439 ((u64)pn[4] << 8) | 440 ((u64)pn[3] << 16) | 441 ((u64)pn[2] << 24) | 442 ((u64)pn[1] << 32) | 443 ((u64)pn[0] << 40)); 444 } 445 } 446 data->have_rsc = true; 447 break; 448 } 449 } 450 451 static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm, 452 struct ieee80211_vif *vif, 453 struct iwl_mvm_vif_link_info *mvm_link) 454 { 455 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM, 456 IWL_FW_CMD_VER_UNKNOWN); 457 int ret; 458 459 if (ver == 5) { 460 struct wowlan_key_rsc_v5_data data = {}; 461 int i; 462 463 data.rsc = kzalloc(sizeof(*data.rsc), GFP_KERNEL); 464 if (!data.rsc) 465 return -ENOMEM; 466 467 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++) 468 data.rsc->mcast_key_id_map[i] = 469 IWL_MCAST_KEY_MAP_INVALID; 470 data.rsc->sta_id = cpu_to_le32(mvm_link->ap_sta_id); 471 472 ieee80211_iter_keys(mvm->hw, vif, 473 iwl_mvm_wowlan_get_rsc_v5_data, 474 &data); 475 476 if (data.have_rsc) 477 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM, 478 CMD_ASYNC, sizeof(*data.rsc), 479 data.rsc); 480 else 481 ret = 0; 482 kfree(data.rsc); 483 } else if (ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) { 484 struct wowlan_key_rsc_tsc_data data = {}; 485 486 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL); 487 if (!data.rsc_tsc) 488 return -ENOMEM; 489 490 ieee80211_iter_keys(mvm->hw, vif, 491 iwl_mvm_wowlan_get_rsc_tsc_data, 492 &data); 493 494 if (data.have_rsc_tsc) 495 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM, 496 CMD_ASYNC, 497 sizeof(*data.rsc_tsc), 498 data.rsc_tsc); 499 else 500 ret = 0; 501 kfree(data.rsc_tsc); 502 } else { 503 ret = 0; 504 WARN_ON_ONCE(1); 505 } 506 507 return ret; 508 } 509 510 struct wowlan_key_tkip_data { 511 struct iwl_wowlan_tkip_params_cmd tkip; 512 bool have_tkip_keys; 513 }; 514 515 static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw, 516 struct ieee80211_vif *vif, 517 struct ieee80211_sta *sta, 518 struct ieee80211_key_conf *key, 519 void *_data) 520 { 521 struct wowlan_key_tkip_data *data = _data; 522 struct iwl_p1k_cache *rx_p1ks; 523 u8 *rx_mic_key; 524 struct ieee80211_key_seq seq; 525 u32 cur_rx_iv32 = 0; 526 u16 p1k[IWL_P1K_SIZE]; 527 int i; 528 529 switch (key->cipher) { 530 default: 531 break; 532 case WLAN_CIPHER_SUITE_TKIP: 533 if (sta) { 534 u64 pn64; 535 536 rx_p1ks = data->tkip.rx_uni; 537 538 pn64 = atomic64_read(&key->tx_pn); 539 540 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64), 541 p1k); 542 iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k); 543 544 memcpy(data->tkip.mic_keys.tx, 545 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], 546 IWL_MIC_KEY_SIZE); 547 548 rx_mic_key = data->tkip.mic_keys.rx_unicast; 549 } else { 550 rx_p1ks = data->tkip.rx_multi; 551 rx_mic_key = data->tkip.mic_keys.rx_mcast; 552 } 553 554 for (i = 0; i < IWL_NUM_RSC; i++) { 555 ieee80211_get_key_rx_seq(key, i, &seq); 556 /* wrapping isn't allowed, AP must rekey */ 557 if (seq.tkip.iv32 > cur_rx_iv32) 558 cur_rx_iv32 = seq.tkip.iv32; 559 } 560 561 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, 562 cur_rx_iv32, p1k); 563 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); 564 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, 565 cur_rx_iv32 + 1, p1k); 566 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); 567 568 memcpy(rx_mic_key, 569 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], 570 IWL_MIC_KEY_SIZE); 571 572 data->have_tkip_keys = true; 573 break; 574 } 575 } 576 577 struct wowlan_key_gtk_type_iter { 578 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd; 579 }; 580 581 static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw, 582 struct ieee80211_vif *vif, 583 struct ieee80211_sta *sta, 584 struct ieee80211_key_conf *key, 585 void *_data) 586 { 587 struct wowlan_key_gtk_type_iter *data = _data; 588 __le32 *cipher = NULL; 589 590 if (key->keyidx == 4 || key->keyidx == 5) 591 cipher = &data->kek_kck_cmd->igtk_cipher; 592 if (key->keyidx == 6 || key->keyidx == 7) 593 cipher = &data->kek_kck_cmd->bigtk_cipher; 594 595 switch (key->cipher) { 596 default: 597 return; 598 case WLAN_CIPHER_SUITE_TKIP: 599 if (!sta) 600 data->kek_kck_cmd->gtk_cipher = 601 cpu_to_le32(STA_KEY_FLG_TKIP); 602 return; 603 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 604 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 605 if (cipher) 606 *cipher = cpu_to_le32(STA_KEY_FLG_GCMP); 607 return; 608 case WLAN_CIPHER_SUITE_AES_CMAC: 609 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 610 if (cipher) 611 *cipher = cpu_to_le32(STA_KEY_FLG_CCM); 612 return; 613 case WLAN_CIPHER_SUITE_CCMP: 614 if (!sta) 615 data->kek_kck_cmd->gtk_cipher = 616 cpu_to_le32(STA_KEY_FLG_CCM); 617 return; 618 case WLAN_CIPHER_SUITE_GCMP: 619 case WLAN_CIPHER_SUITE_GCMP_256: 620 if (!sta) 621 data->kek_kck_cmd->gtk_cipher = 622 cpu_to_le32(STA_KEY_FLG_GCMP); 623 return; 624 } 625 } 626 627 static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm, 628 struct cfg80211_wowlan *wowlan) 629 { 630 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd; 631 struct iwl_host_cmd cmd = { 632 .id = WOWLAN_PATTERNS, 633 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 634 }; 635 int i, err; 636 637 if (!wowlan->n_patterns) 638 return 0; 639 640 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns); 641 642 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); 643 if (!pattern_cmd) 644 return -ENOMEM; 645 646 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); 647 648 for (i = 0; i < wowlan->n_patterns; i++) { 649 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 650 651 memcpy(&pattern_cmd->patterns[i].mask, 652 wowlan->patterns[i].mask, mask_len); 653 memcpy(&pattern_cmd->patterns[i].pattern, 654 wowlan->patterns[i].pattern, 655 wowlan->patterns[i].pattern_len); 656 pattern_cmd->patterns[i].mask_size = mask_len; 657 pattern_cmd->patterns[i].pattern_size = 658 wowlan->patterns[i].pattern_len; 659 } 660 661 cmd.data[0] = pattern_cmd; 662 err = iwl_mvm_send_cmd(mvm, &cmd); 663 kfree(pattern_cmd); 664 return err; 665 } 666 667 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, 668 struct iwl_mvm_vif_link_info *mvm_link, 669 struct cfg80211_wowlan *wowlan) 670 { 671 struct iwl_wowlan_patterns_cmd *pattern_cmd; 672 struct iwl_host_cmd cmd = { 673 .id = WOWLAN_PATTERNS, 674 .dataflags[0] = IWL_HCMD_DFL_NOCOPY, 675 }; 676 int i, err; 677 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 678 IWL_FW_CMD_VER_UNKNOWN); 679 680 if (!wowlan->n_patterns) 681 return 0; 682 683 cmd.len[0] = sizeof(*pattern_cmd) + 684 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2); 685 686 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL); 687 if (!pattern_cmd) 688 return -ENOMEM; 689 690 pattern_cmd->n_patterns = wowlan->n_patterns; 691 if (ver >= 3) 692 pattern_cmd->sta_id = mvm_link->ap_sta_id; 693 694 for (i = 0; i < wowlan->n_patterns; i++) { 695 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); 696 697 pattern_cmd->patterns[i].pattern_type = 698 WOWLAN_PATTERN_TYPE_BITMASK; 699 700 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask, 701 wowlan->patterns[i].mask, mask_len); 702 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern, 703 wowlan->patterns[i].pattern, 704 wowlan->patterns[i].pattern_len); 705 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len; 706 pattern_cmd->patterns[i].u.bitmask.pattern_size = 707 wowlan->patterns[i].pattern_len; 708 } 709 710 cmd.data[0] = pattern_cmd; 711 err = iwl_mvm_send_cmd(mvm, &cmd); 712 kfree(pattern_cmd); 713 return err; 714 } 715 716 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 717 struct ieee80211_sta *ap_sta) 718 { 719 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 720 struct ieee80211_chanctx_conf *ctx; 721 u8 chains_static, chains_dynamic; 722 struct cfg80211_chan_def chandef, ap_def; 723 int ret, i; 724 struct iwl_binding_cmd_v1 binding_cmd = {}; 725 struct iwl_time_quota_cmd quota_cmd = {}; 726 struct iwl_time_quota_data *quota; 727 u32 status; 728 729 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm) || 730 ieee80211_vif_is_mld(vif))) 731 return -EINVAL; 732 733 /* add back the PHY */ 734 if (WARN_ON(!mvmvif->deflink.phy_ctxt)) 735 return -EINVAL; 736 737 rcu_read_lock(); 738 ctx = rcu_dereference(vif->bss_conf.chanctx_conf); 739 if (WARN_ON(!ctx)) { 740 rcu_read_unlock(); 741 return -EINVAL; 742 } 743 chandef = ctx->def; 744 ap_def = ctx->ap; 745 chains_static = ctx->rx_chains_static; 746 chains_dynamic = ctx->rx_chains_dynamic; 747 rcu_read_unlock(); 748 749 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef, 750 &ap_def, chains_static, chains_dynamic); 751 if (ret) 752 return ret; 753 754 /* add back the MAC */ 755 mvmvif->uploaded = false; 756 757 if (WARN_ON(!vif->cfg.assoc)) 758 return -EINVAL; 759 760 ret = iwl_mvm_mac_ctxt_add(mvm, vif); 761 if (ret) 762 return ret; 763 764 /* add back binding - XXX refactor? */ 765 binding_cmd.id_and_color = 766 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 767 mvmvif->deflink.phy_ctxt->color)); 768 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); 769 binding_cmd.phy = 770 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 771 mvmvif->deflink.phy_ctxt->color)); 772 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 773 mvmvif->color)); 774 for (i = 1; i < MAX_MACS_IN_BINDING; i++) 775 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); 776 777 status = 0; 778 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, 779 IWL_BINDING_CMD_SIZE_V1, &binding_cmd, 780 &status); 781 if (ret) { 782 IWL_ERR(mvm, "Failed to add binding: %d\n", ret); 783 return ret; 784 } 785 786 if (status) { 787 IWL_ERR(mvm, "Binding command failed: %u\n", status); 788 return -EIO; 789 } 790 791 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0); 792 if (ret) 793 return ret; 794 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id], 795 ap_sta); 796 797 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); 798 if (ret) 799 return ret; 800 801 /* and some quota */ 802 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0); 803 quota->id_and_color = 804 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id, 805 mvmvif->deflink.phy_ctxt->color)); 806 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); 807 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); 808 809 for (i = 1; i < MAX_BINDINGS; i++) { 810 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i); 811 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID); 812 } 813 814 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, 815 iwl_mvm_quota_cmd_size(mvm), "a_cmd); 816 if (ret) 817 IWL_ERR(mvm, "Failed to send quota: %d\n", ret); 818 819 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false)) 820 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); 821 822 return 0; 823 } 824 825 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, 826 struct ieee80211_vif *vif) 827 { 828 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 829 struct iwl_nonqos_seq_query_cmd query_cmd = { 830 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), 831 .mac_id_n_color = 832 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 833 mvmvif->color)), 834 }; 835 struct iwl_host_cmd cmd = { 836 .id = NON_QOS_TX_COUNTER_CMD, 837 .flags = CMD_WANT_SKB, 838 }; 839 int err; 840 u32 size; 841 842 cmd.data[0] = &query_cmd; 843 cmd.len[0] = sizeof(query_cmd); 844 845 err = iwl_mvm_send_cmd(mvm, &cmd); 846 if (err) 847 return err; 848 849 size = iwl_rx_packet_payload_len(cmd.resp_pkt); 850 if (size < sizeof(__le16)) { 851 err = -EINVAL; 852 } else { 853 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); 854 /* firmware returns next, not last-used seqno */ 855 err = (u16) (err - 0x10); 856 } 857 858 iwl_free_resp(&cmd); 859 return err; 860 } 861 862 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) 863 { 864 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 865 struct iwl_nonqos_seq_query_cmd query_cmd = { 866 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), 867 .mac_id_n_color = 868 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, 869 mvmvif->color)), 870 .value = cpu_to_le16(mvmvif->seqno), 871 }; 872 873 /* return if called during restart, not resume from D3 */ 874 if (!mvmvif->seqno_valid) 875 return; 876 877 mvmvif->seqno_valid = false; 878 879 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, 880 sizeof(query_cmd), &query_cmd)) 881 IWL_ERR(mvm, "failed to set non-QoS seqno\n"); 882 } 883 884 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) 885 { 886 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); 887 888 iwl_mvm_stop_device(mvm); 889 /* 890 * Set the HW restart bit -- this is mostly true as we're 891 * going to load new firmware and reprogram that, though 892 * the reprogramming is going to be manual to avoid adding 893 * all the MACs that aren't support. 894 * We don't have to clear up everything though because the 895 * reprogramming is manual. When we resume, we'll actually 896 * go through a proper restart sequence again to switch 897 * back to the runtime firmware image. 898 */ 899 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 900 901 /* the fw is reset, so all the keys are cleared */ 902 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); 903 904 mvm->ptk_ivlen = 0; 905 mvm->ptk_icvlen = 0; 906 mvm->ptk_ivlen = 0; 907 mvm->ptk_icvlen = 0; 908 909 return iwl_mvm_load_d3_fw(mvm); 910 } 911 912 static int 913 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, 914 struct cfg80211_wowlan *wowlan, 915 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd, 916 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 917 struct ieee80211_sta *ap_sta) 918 { 919 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); 920 921 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ 922 923 wowlan_config_cmd->is_11n_connection = 924 ap_sta->deflink.ht_cap.ht_supported; 925 wowlan_config_cmd->flags = ENABLE_L3_FILTERING | 926 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; 927 928 if (ap_sta->mfp) 929 wowlan_config_cmd->flags |= IS_11W_ASSOC; 930 931 if (rcu_access_pointer(mvmvif->bcn_prot.keys[0]) || 932 rcu_access_pointer(mvmvif->bcn_prot.keys[1])) 933 wowlan_config_cmd->flags |= HAS_BEACON_PROTECTION; 934 935 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) { 936 /* Query the last used seqno and set it */ 937 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); 938 939 if (ret < 0) 940 return ret; 941 942 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); 943 } 944 945 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 7) 946 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); 947 948 if (wowlan->disconnect) 949 wowlan_config_cmd->wakeup_filter |= 950 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 951 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 952 if (wowlan->magic_pkt) 953 wowlan_config_cmd->wakeup_filter |= 954 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); 955 if (wowlan->gtk_rekey_failure) 956 wowlan_config_cmd->wakeup_filter |= 957 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); 958 if (wowlan->eap_identity_req) 959 wowlan_config_cmd->wakeup_filter |= 960 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); 961 if (wowlan->four_way_handshake) 962 wowlan_config_cmd->wakeup_filter |= 963 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); 964 if (wowlan->n_patterns) 965 wowlan_config_cmd->wakeup_filter |= 966 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); 967 968 if (wowlan->rfkill_release) 969 wowlan_config_cmd->wakeup_filter |= 970 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); 971 972 if (wowlan->tcp) { 973 /* 974 * Set the "link change" (really "link lost") flag as well 975 * since that implies losing the TCP connection. 976 */ 977 wowlan_config_cmd->wakeup_filter |= 978 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | 979 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | 980 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | 981 IWL_WOWLAN_WAKEUP_LINK_CHANGE); 982 } 983 984 if (wowlan->any) { 985 wowlan_config_cmd->wakeup_filter |= 986 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | 987 IWL_WOWLAN_WAKEUP_LINK_CHANGE | 988 IWL_WOWLAN_WAKEUP_RX_FRAME | 989 IWL_WOWLAN_WAKEUP_BCN_FILTERING); 990 } 991 992 return 0; 993 } 994 995 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, 996 struct ieee80211_vif *vif, 997 struct iwl_mvm_vif_link_info *mvm_link) 998 { 999 bool unified = fw_has_capa(&mvm->fw->ucode_capa, 1000 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1001 struct wowlan_key_reprogram_data key_data = {}; 1002 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1003 int ret; 1004 u8 cmd_ver; 1005 size_t cmd_size; 1006 1007 if (!unified) { 1008 /* 1009 * if we have to configure keys, call ieee80211_iter_keys(), 1010 * as we need non-atomic context in order to take the 1011 * required locks. 1012 */ 1013 /* 1014 * Note that currently we don't use CMD_ASYNC in the iterator. 1015 * In case of key_data.configure_keys, all the configured 1016 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will 1017 * take care of locking/unlocking mvm->mutex. 1018 */ 1019 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys, 1020 &key_data); 1021 1022 if (key_data.error) 1023 return -EIO; 1024 } 1025 1026 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif, mvm_link); 1027 if (ret) 1028 return ret; 1029 1030 if (!fw_has_api(&mvm->fw->ucode_capa, 1031 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) { 1032 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM, 1033 IWL_FW_CMD_VER_UNKNOWN); 1034 struct wowlan_key_tkip_data tkip_data = {}; 1035 int size; 1036 1037 if (ver == 2) { 1038 size = sizeof(tkip_data.tkip); 1039 tkip_data.tkip.sta_id = 1040 cpu_to_le32(mvm_link->ap_sta_id); 1041 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) { 1042 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1); 1043 } else { 1044 WARN_ON_ONCE(1); 1045 return -EINVAL; 1046 } 1047 1048 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data, 1049 &tkip_data); 1050 1051 if (tkip_data.have_tkip_keys) { 1052 /* send relevant data according to CMD version */ 1053 ret = iwl_mvm_send_cmd_pdu(mvm, 1054 WOWLAN_TKIP_PARAM, 1055 CMD_ASYNC, size, 1056 &tkip_data.tkip); 1057 if (ret) 1058 return ret; 1059 } 1060 } 1061 1062 /* configure rekey data only if offloaded rekey is supported (d3) */ 1063 if (mvmvif->rekey_data.valid) { 1064 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {}; 1065 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd = 1066 &kek_kck_cmd; 1067 struct wowlan_key_gtk_type_iter gtk_type_data = { 1068 .kek_kck_cmd = _kek_kck_cmd, 1069 }; 1070 1071 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, 1072 WOWLAN_KEK_KCK_MATERIAL, 1073 IWL_FW_CMD_VER_UNKNOWN); 1074 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 && 1075 cmd_ver != IWL_FW_CMD_VER_UNKNOWN)) 1076 return -EINVAL; 1077 1078 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter, 1079 >k_type_data); 1080 1081 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, 1082 mvmvif->rekey_data.kck_len); 1083 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len); 1084 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, 1085 mvmvif->rekey_data.kek_len); 1086 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len); 1087 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; 1088 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm); 1089 kek_kck_cmd.sta_id = cpu_to_le32(mvm_link->ap_sta_id); 1090 1091 if (cmd_ver == 4) { 1092 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4); 1093 } else { 1094 if (cmd_ver == 3) 1095 cmd_size = 1096 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3); 1097 else 1098 cmd_size = 1099 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2); 1100 /* skip the sta_id at the beginning */ 1101 _kek_kck_cmd = (void *) 1102 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id)); 1103 } 1104 1105 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n", 1106 mvmvif->rekey_data.akm); 1107 1108 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL, 1109 CMD_ASYNC, cmd_size, _kek_kck_cmd); 1110 if (ret) 1111 return ret; 1112 } 1113 1114 return 0; 1115 } 1116 1117 static int 1118 iwl_mvm_wowlan_config(struct iwl_mvm *mvm, 1119 struct cfg80211_wowlan *wowlan, 1120 struct iwl_wowlan_config_cmd_v6 *wowlan_config_cmd_v6, 1121 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, 1122 struct iwl_mvm_vif_link_info *mvm_link, 1123 struct ieee80211_sta *ap_sta) 1124 { 1125 int ret; 1126 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1127 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1128 1129 mvm->offload_tid = wowlan_config_cmd_v6->offloading_tid; 1130 1131 if (!unified_image) { 1132 ret = iwl_mvm_switch_to_d3(mvm); 1133 if (ret) 1134 return ret; 1135 1136 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); 1137 if (ret) 1138 return ret; 1139 } 1140 1141 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, mvm_link); 1142 if (ret) 1143 return ret; 1144 1145 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) > 6) { 1146 struct iwl_wowlan_config_cmd wowlan_config_cmd = { 1147 .wakeup_filter = wowlan_config_cmd_v6->wakeup_filter, 1148 .wowlan_ba_teardown_tids = 1149 wowlan_config_cmd_v6->wowlan_ba_teardown_tids, 1150 .is_11n_connection = 1151 wowlan_config_cmd_v6->is_11n_connection, 1152 .offloading_tid = wowlan_config_cmd_v6->offloading_tid, 1153 .flags = wowlan_config_cmd_v6->flags, 1154 .sta_id = wowlan_config_cmd_v6->sta_id, 1155 }; 1156 1157 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1158 sizeof(wowlan_config_cmd), 1159 &wowlan_config_cmd); 1160 } else { 1161 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, 1162 sizeof(*wowlan_config_cmd_v6), 1163 wowlan_config_cmd_v6); 1164 } 1165 if (ret) 1166 return ret; 1167 1168 if (fw_has_api(&mvm->fw->ucode_capa, 1169 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE)) 1170 ret = iwl_mvm_send_patterns(mvm, mvm_link, wowlan); 1171 else 1172 ret = iwl_mvm_send_patterns_v1(mvm, wowlan); 1173 if (ret) 1174 return ret; 1175 1176 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0, 1177 mvm_link->ap_sta_id); 1178 } 1179 1180 static int 1181 iwl_mvm_netdetect_config(struct iwl_mvm *mvm, 1182 struct cfg80211_wowlan *wowlan, 1183 struct cfg80211_sched_scan_request *nd_config, 1184 struct ieee80211_vif *vif) 1185 { 1186 int ret; 1187 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1188 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1189 1190 if (!unified_image) { 1191 ret = iwl_mvm_switch_to_d3(mvm); 1192 if (ret) 1193 return ret; 1194 } else { 1195 /* In theory, we wouldn't have to stop a running sched 1196 * scan in order to start another one (for 1197 * net-detect). But in practice this doesn't seem to 1198 * work properly, so stop any running sched_scan now. 1199 */ 1200 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true); 1201 if (ret) 1202 return ret; 1203 } 1204 1205 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, 1206 IWL_MVM_SCAN_NETDETECT); 1207 if (ret) 1208 return ret; 1209 1210 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) 1211 return -EBUSY; 1212 1213 /* save the sched scan matchsets... */ 1214 if (nd_config->n_match_sets) { 1215 mvm->nd_match_sets = kmemdup(nd_config->match_sets, 1216 sizeof(*nd_config->match_sets) * 1217 nd_config->n_match_sets, 1218 GFP_KERNEL); 1219 if (mvm->nd_match_sets) 1220 mvm->n_nd_match_sets = nd_config->n_match_sets; 1221 } 1222 1223 /* ...and the sched scan channels for later reporting */ 1224 mvm->nd_channels = kmemdup(nd_config->channels, 1225 sizeof(*nd_config->channels) * 1226 nd_config->n_channels, 1227 GFP_KERNEL); 1228 if (mvm->nd_channels) 1229 mvm->n_nd_channels = nd_config->n_channels; 1230 1231 return 0; 1232 } 1233 1234 static void iwl_mvm_free_nd(struct iwl_mvm *mvm) 1235 { 1236 kfree(mvm->nd_match_sets); 1237 mvm->nd_match_sets = NULL; 1238 mvm->n_nd_match_sets = 0; 1239 kfree(mvm->nd_channels); 1240 mvm->nd_channels = NULL; 1241 mvm->n_nd_channels = 0; 1242 } 1243 1244 static int __iwl_mvm_suspend(struct ieee80211_hw *hw, 1245 struct cfg80211_wowlan *wowlan, 1246 bool test) 1247 { 1248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1249 struct ieee80211_vif *vif = NULL; 1250 struct iwl_mvm_vif *mvmvif = NULL; 1251 struct ieee80211_sta *ap_sta = NULL; 1252 struct iwl_mvm_vif_link_info *mvm_link; 1253 struct iwl_d3_manager_config d3_cfg_cmd_data = { 1254 /* 1255 * Program the minimum sleep time to 10 seconds, as many 1256 * platforms have issues processing a wakeup signal while 1257 * still being in the process of suspending. 1258 */ 1259 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), 1260 }; 1261 struct iwl_host_cmd d3_cfg_cmd = { 1262 .id = D3_CONFIG_CMD, 1263 .flags = CMD_WANT_SKB, 1264 .data[0] = &d3_cfg_cmd_data, 1265 .len[0] = sizeof(d3_cfg_cmd_data), 1266 }; 1267 int ret; 1268 int len __maybe_unused; 1269 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 1270 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 1271 1272 if (!wowlan) { 1273 /* 1274 * mac80211 shouldn't get here, but for D3 test 1275 * it doesn't warrant a warning 1276 */ 1277 WARN_ON(!test); 1278 return -EINVAL; 1279 } 1280 1281 vif = iwl_mvm_get_bss_vif(mvm); 1282 if (IS_ERR_OR_NULL(vif)) 1283 return 1; 1284 1285 mutex_lock(&mvm->mutex); 1286 1287 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1288 1289 synchronize_net(); 1290 1291 mvmvif = iwl_mvm_vif_from_mac80211(vif); 1292 1293 mvm_link = mvmvif->link[iwl_mvm_get_primary_link(vif)]; 1294 if (WARN_ON_ONCE(!mvm_link)) { 1295 ret = -EINVAL; 1296 goto out_noreset; 1297 } 1298 1299 if (mvm_link->ap_sta_id == IWL_INVALID_STA) { 1300 /* if we're not associated, this must be netdetect */ 1301 if (!wowlan->nd_config) { 1302 ret = 1; 1303 goto out_noreset; 1304 } 1305 1306 ret = iwl_mvm_netdetect_config( 1307 mvm, wowlan, wowlan->nd_config, vif); 1308 if (ret) 1309 goto out; 1310 1311 mvm->net_detect = true; 1312 } else { 1313 struct iwl_wowlan_config_cmd_v6 wowlan_config_cmd = { 1314 .offloading_tid = 0, 1315 }; 1316 1317 wowlan_config_cmd.sta_id = mvm_link->ap_sta_id; 1318 1319 ap_sta = rcu_dereference_protected( 1320 mvm->fw_id_to_mac_id[mvm_link->ap_sta_id], 1321 lockdep_is_held(&mvm->mutex)); 1322 if (IS_ERR_OR_NULL(ap_sta)) { 1323 ret = -EINVAL; 1324 goto out_noreset; 1325 } 1326 1327 ret = iwl_mvm_sta_ensure_queue( 1328 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]); 1329 if (ret) 1330 goto out_noreset; 1331 1332 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1333 vif, mvmvif, ap_sta); 1334 if (ret) 1335 goto out_noreset; 1336 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, 1337 vif, mvmvif, mvm_link, ap_sta); 1338 if (ret) 1339 goto out; 1340 1341 mvm->net_detect = false; 1342 } 1343 1344 ret = iwl_mvm_power_update_device(mvm); 1345 if (ret) 1346 goto out; 1347 1348 ret = iwl_mvm_power_update_mac(mvm); 1349 if (ret) 1350 goto out; 1351 1352 #ifdef CONFIG_IWLWIFI_DEBUGFS 1353 if (mvm->d3_wake_sysassert) 1354 d3_cfg_cmd_data.wakeup_flags |= 1355 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); 1356 #endif 1357 1358 /* 1359 * Prior to 9000 device family the driver needs to stop the dbg 1360 * recording before entering D3. In later devices the FW stops the 1361 * recording automatically. 1362 */ 1363 if (mvm->trans->mac_cfg->device_family < IWL_DEVICE_FAMILY_9000) 1364 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true); 1365 1366 /* must be last -- this switches firmware state */ 1367 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); 1368 if (ret) 1369 goto out; 1370 #ifdef CONFIG_IWLWIFI_DEBUGFS 1371 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); 1372 if (len >= sizeof(u32)) { 1373 mvm->d3_test_pme_ptr = 1374 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); 1375 } 1376 #endif 1377 iwl_free_resp(&d3_cfg_cmd); 1378 1379 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); 1380 1381 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image); 1382 out: 1383 if (ret < 0) { 1384 iwl_mvm_free_nd(mvm); 1385 1386 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 1387 } 1388 out_noreset: 1389 mutex_unlock(&mvm->mutex); 1390 1391 return ret; 1392 } 1393 1394 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) 1395 { 1396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 1397 1398 iwl_mvm_pause_tcm(mvm, true); 1399 1400 mutex_lock(&mvm->mutex); 1401 iwl_fw_runtime_suspend(&mvm->fwrt); 1402 mutex_unlock(&mvm->mutex); 1403 1404 return __iwl_mvm_suspend(hw, wowlan, false); 1405 } 1406 1407 struct iwl_multicast_key_data { 1408 u8 key[WOWLAN_KEY_MAX_SIZE]; 1409 u8 len; 1410 u8 flags; 1411 u8 id; 1412 u8 ipn[6]; 1413 }; 1414 1415 /* converted data from the different status responses */ 1416 struct iwl_wowlan_status_data { 1417 u64 replay_ctr; 1418 u32 num_of_gtk_rekeys; 1419 u32 received_beacons; 1420 u32 wakeup_reasons; 1421 u32 wake_packet_length; 1422 u32 wake_packet_bufsize; 1423 u16 pattern_number; 1424 u16 non_qos_seq_ctr; 1425 u16 qos_seq_ctr[8]; 1426 u8 tid_tear_down; 1427 u8 tid_offloaded_tx; 1428 1429 struct { 1430 /* including RX MIC key for TKIP */ 1431 u8 key[WOWLAN_KEY_MAX_SIZE]; 1432 u8 len; 1433 u8 flags; 1434 u8 id; 1435 } gtk[WOWLAN_GTK_KEYS_NUM]; 1436 1437 struct { 1438 /* 1439 * We store both the TKIP and AES representations 1440 * coming from the firmware because we decode the 1441 * data from there before we iterate the keys and 1442 * know which one we need. 1443 */ 1444 struct { 1445 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1446 } tkip, aes; 1447 1448 /* 1449 * We use -1 for when we have valid data but don't know 1450 * the key ID from firmware, and thus it needs to be 1451 * installed with the last key (depending on rekeying). 1452 */ 1453 s8 key_id; 1454 bool valid; 1455 } gtk_seq[2]; 1456 1457 struct { 1458 /* Same as above */ 1459 struct { 1460 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT]; 1461 u64 tx_pn; 1462 } tkip, aes; 1463 } ptk; 1464 1465 struct iwl_multicast_key_data igtk; 1466 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM]; 1467 1468 u8 *wake_packet; 1469 }; 1470 1471 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, 1472 struct ieee80211_vif *vif, 1473 struct iwl_wowlan_status_data *status) 1474 { 1475 struct sk_buff *pkt = NULL; 1476 struct cfg80211_wowlan_wakeup wakeup = { 1477 .pattern_idx = -1, 1478 }; 1479 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 1480 u32 reasons = status->wakeup_reasons; 1481 1482 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 1483 wakeup_report = NULL; 1484 goto report; 1485 } 1486 1487 pm_wakeup_event(mvm->dev, 0); 1488 1489 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) 1490 wakeup.magic_pkt = true; 1491 1492 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) 1493 wakeup.pattern_idx = 1494 status->pattern_number; 1495 1496 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 1497 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH | 1498 IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)) 1499 wakeup.disconnect = true; 1500 1501 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) 1502 wakeup.gtk_rekey_failure = true; 1503 1504 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 1505 wakeup.rfkill_release = true; 1506 1507 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) 1508 wakeup.eap_identity_req = true; 1509 1510 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) 1511 wakeup.four_way_handshake = true; 1512 1513 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) 1514 wakeup.tcp_connlost = true; 1515 1516 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) 1517 wakeup.tcp_nomoretokens = true; 1518 1519 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) 1520 wakeup.tcp_match = true; 1521 1522 if (reasons & IWL_WAKEUP_BY_11W_UNPROTECTED_DEAUTH_OR_DISASSOC) 1523 wakeup.unprot_deauth_disassoc = true; 1524 1525 if (status->wake_packet) { 1526 int pktsize = status->wake_packet_bufsize; 1527 int pktlen = status->wake_packet_length; 1528 const u8 *pktdata = status->wake_packet; 1529 const struct ieee80211_hdr *hdr = (const void *)pktdata; 1530 int truncated = pktlen - pktsize; 1531 1532 /* this would be a firmware bug */ 1533 if (WARN_ON_ONCE(truncated < 0)) 1534 truncated = 0; 1535 1536 if (ieee80211_is_data(hdr->frame_control)) { 1537 int hdrlen = ieee80211_hdrlen(hdr->frame_control); 1538 int ivlen = 0, icvlen = 4; /* also FCS */ 1539 1540 pkt = alloc_skb(pktsize, GFP_KERNEL); 1541 if (!pkt) 1542 goto report; 1543 1544 skb_put_data(pkt, pktdata, hdrlen); 1545 pktdata += hdrlen; 1546 pktsize -= hdrlen; 1547 1548 if (ieee80211_has_protected(hdr->frame_control)) { 1549 /* 1550 * This is unlocked and using gtk_i(c)vlen, 1551 * but since everything is under RTNL still 1552 * that's not really a problem - changing 1553 * it would be difficult. 1554 */ 1555 if (is_multicast_ether_addr(hdr->addr1)) { 1556 ivlen = mvm->gtk_ivlen; 1557 icvlen += mvm->gtk_icvlen; 1558 } else { 1559 ivlen = mvm->ptk_ivlen; 1560 icvlen += mvm->ptk_icvlen; 1561 } 1562 } 1563 1564 /* if truncated, FCS/ICV is (partially) gone */ 1565 if (truncated >= icvlen) { 1566 icvlen = 0; 1567 truncated -= icvlen; 1568 } else { 1569 icvlen -= truncated; 1570 truncated = 0; 1571 } 1572 1573 pktsize -= ivlen + icvlen; 1574 pktdata += ivlen; 1575 1576 skb_put_data(pkt, pktdata, pktsize); 1577 1578 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) 1579 goto report; 1580 wakeup.packet = pkt->data; 1581 wakeup.packet_present_len = pkt->len; 1582 wakeup.packet_len = pkt->len - truncated; 1583 wakeup.packet_80211 = false; 1584 } else { 1585 int fcslen = 4; 1586 1587 if (truncated >= 4) { 1588 truncated -= 4; 1589 fcslen = 0; 1590 } else { 1591 fcslen -= truncated; 1592 truncated = 0; 1593 } 1594 pktsize -= fcslen; 1595 wakeup.packet = status->wake_packet; 1596 wakeup.packet_present_len = pktsize; 1597 wakeup.packet_len = pktlen - truncated; 1598 wakeup.packet_80211 = true; 1599 } 1600 } 1601 1602 report: 1603 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 1604 kfree_skb(pkt); 1605 } 1606 1607 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1608 { 1609 u64 pn = le64_to_cpu(le_pn); 1610 1611 seq->ccmp.pn[0] = pn >> 40; 1612 seq->ccmp.pn[1] = pn >> 32; 1613 seq->ccmp.pn[2] = pn >> 24; 1614 seq->ccmp.pn[3] = pn >> 16; 1615 seq->ccmp.pn[4] = pn >> 8; 1616 seq->ccmp.pn[5] = pn; 1617 } 1618 1619 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, 1620 struct ieee80211_key_seq *seq) 1621 { 1622 iwl_mvm_le64_to_aes_seq(sc->pn, seq); 1623 } 1624 1625 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq) 1626 { 1627 u64 pn = le64_to_cpu(le_pn); 1628 1629 seq->tkip.iv16 = (u16)pn; 1630 seq->tkip.iv32 = (u32)(pn >> 16); 1631 } 1632 1633 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, 1634 struct ieee80211_key_seq *seq) 1635 { 1636 seq->tkip.iv32 = le32_to_cpu(sc->iv32); 1637 seq->tkip.iv16 = le16_to_cpu(sc->iv16); 1638 } 1639 1640 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key, 1641 struct ieee80211_key_seq *seq) 1642 { 1643 int tid; 1644 1645 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) 1646 ieee80211_set_key_rx_seq(key, tid, &seq[tid]); 1647 } 1648 1649 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm, 1650 struct iwl_wowlan_status_data *status, 1651 struct ieee80211_sta *sta, 1652 struct ieee80211_key_conf *key) 1653 { 1654 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); 1655 struct iwl_mvm_key_pn *ptk_pn; 1656 int tid; 1657 1658 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq); 1659 1660 if (!iwl_mvm_has_new_rx_api(mvm)) 1661 return; 1662 1663 1664 rcu_read_lock(); 1665 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]); 1666 if (WARN_ON(!ptk_pn)) { 1667 rcu_read_unlock(); 1668 return; 1669 } 1670 1671 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1672 int i; 1673 1674 for (i = 1; i < mvm->trans->info.num_rxqs; i++) 1675 memcpy(ptk_pn->q[i].pn[tid], 1676 status->ptk.aes.seq[tid].ccmp.pn, 1677 IEEE80211_CCMP_PN_LEN); 1678 } 1679 rcu_read_unlock(); 1680 } 1681 1682 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status, 1683 union iwl_all_tsc_rsc *sc, u8 key_idx) 1684 { 1685 int i; 1686 1687 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1688 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1689 1690 /* GTK RX counters */ 1691 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1692 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i], 1693 &status->gtk_seq[0].tkip.seq[i]); 1694 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i], 1695 &status->gtk_seq[0].aes.seq[i]); 1696 } 1697 status->gtk_seq[0].valid = true; 1698 status->gtk_seq[0].key_id = key_idx; 1699 1700 /* PTK TX counter */ 1701 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) | 1702 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16); 1703 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn); 1704 1705 /* PTK RX counters */ 1706 for (i = 0; i < IWL_MAX_TID_COUNT; i++) { 1707 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i], 1708 &status->ptk.tkip.seq[i]); 1709 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i], 1710 &status->ptk.aes.seq[i]); 1711 } 1712 } 1713 1714 static void 1715 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status, 1716 struct iwl_wowlan_all_rsc_tsc_v5 *sc, 1717 unsigned int idx, unsigned int key_id) 1718 { 1719 int tid; 1720 1721 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1722 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid], 1723 &status->gtk_seq[idx].tkip.seq[tid]); 1724 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid], 1725 &status->gtk_seq[idx].aes.seq[tid]); 1726 } 1727 1728 status->gtk_seq[idx].valid = true; 1729 status->gtk_seq[idx].key_id = key_id; 1730 } 1731 1732 static void 1733 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status, 1734 struct iwl_wowlan_all_rsc_tsc_v5 *sc) 1735 { 1736 int i, tid; 1737 1738 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT); 1739 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC); 1740 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq)); 1741 1742 /* GTK RX counters */ 1743 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) { 1744 u8 entry = sc->mcast_key_id_map[i]; 1745 1746 if (entry < ARRAY_SIZE(sc->mcast_rsc)) 1747 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc, 1748 entry, i); 1749 } 1750 1751 /* PTK TX counters not needed, assigned in device */ 1752 1753 /* PTK RX counters */ 1754 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { 1755 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid], 1756 &status->ptk.tkip.seq[tid]); 1757 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid], 1758 &status->ptk.aes.seq[tid]); 1759 } 1760 } 1761 1762 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key, 1763 struct iwl_wowlan_status_data *status, 1764 int idx) 1765 { 1766 switch (key->cipher) { 1767 case WLAN_CIPHER_SUITE_CCMP: 1768 case WLAN_CIPHER_SUITE_GCMP: 1769 case WLAN_CIPHER_SUITE_GCMP_256: 1770 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq); 1771 break; 1772 case WLAN_CIPHER_SUITE_TKIP: 1773 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq); 1774 break; 1775 default: 1776 WARN_ON(1); 1777 } 1778 } 1779 1780 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, 1781 struct iwl_wowlan_status_data *status) 1782 { 1783 int i; 1784 1785 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) { 1786 if (!status->gtk_seq[i].valid) 1787 continue; 1788 1789 if (status->gtk_seq[i].key_id == key->keyidx) 1790 iwl_mvm_set_key_rx_seq_idx(key, status, i); 1791 } 1792 } 1793 1794 struct iwl_mvm_d3_gtk_iter_data { 1795 struct iwl_mvm *mvm; 1796 struct iwl_wowlan_status_data *status; 1797 }; 1798 1799 static void 1800 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key, 1801 struct ieee80211_key_seq *seq, u32 cipher) 1802 { 1803 switch (cipher) { 1804 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1805 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1806 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn)); 1807 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn)); 1808 break; 1809 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1810 case WLAN_CIPHER_SUITE_AES_CMAC: 1811 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn)); 1812 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn)); 1813 break; 1814 default: 1815 WARN_ON(1); 1816 } 1817 } 1818 1819 static void 1820 iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status, 1821 struct ieee80211_key_conf *key, 1822 struct iwl_multicast_key_data *key_data) 1823 { 1824 struct ieee80211_key_seq seq; 1825 1826 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, key->cipher); 1827 ieee80211_set_key_rx_seq(key, 0, &seq); 1828 } 1829 1830 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, 1831 struct ieee80211_vif *vif, 1832 struct ieee80211_sta *sta, 1833 struct ieee80211_key_conf *key, 1834 void *_data) 1835 { 1836 struct iwl_mvm_d3_gtk_iter_data *data = _data; 1837 struct iwl_wowlan_status_data *status = data->status; 1838 s8 keyidx; 1839 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1840 1841 if (link_id >= 0 && key->link_id >= 0 && link_id != key->link_id) 1842 return; 1843 1844 switch (key->cipher) { 1845 case WLAN_CIPHER_SUITE_WEP40: 1846 case WLAN_CIPHER_SUITE_WEP104: 1847 /* ignore WEP completely, nothing to do */ 1848 return; 1849 case WLAN_CIPHER_SUITE_CCMP: 1850 case WLAN_CIPHER_SUITE_GCMP: 1851 case WLAN_CIPHER_SUITE_GCMP_256: 1852 if (sta) { 1853 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn); 1854 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key); 1855 return; 1856 } 1857 fallthrough; 1858 case WLAN_CIPHER_SUITE_TKIP: 1859 if (sta) { 1860 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn); 1861 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq); 1862 return; 1863 } 1864 keyidx = key->keyidx; 1865 /* 1866 * Update the seq even if there was a rekey. If there was a 1867 * rekey, we will update again after replacing the key 1868 */ 1869 if ((status->gtk[0].len && keyidx == status->gtk[0].id) || 1870 (status->gtk[1].len && keyidx == status->gtk[1].id)) 1871 iwl_mvm_set_key_rx_seq(key, status); 1872 break; 1873 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 1874 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 1875 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 1876 case WLAN_CIPHER_SUITE_AES_CMAC: 1877 if (key->keyidx == 4 || key->keyidx == 5) { 1878 iwl_mvm_d3_update_igtk_bigtk(status, key, 1879 &status->igtk); 1880 } 1881 if (key->keyidx == 6 || key->keyidx == 7) { 1882 u8 idx = key->keyidx == status->bigtk[1].id; 1883 1884 iwl_mvm_d3_update_igtk_bigtk(status, key, 1885 &status->bigtk[idx]); 1886 } 1887 } 1888 } 1889 1890 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status, 1891 struct ieee80211_vif *vif, 1892 struct iwl_mvm *mvm) 1893 { 1894 int i, j; 1895 struct ieee80211_key_conf *key; 1896 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1897 1898 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) { 1899 if (!status->gtk[i].len) 1900 continue; 1901 1902 IWL_DEBUG_WOWLAN(mvm, 1903 "Received from FW GTK: key index %d\n", 1904 status->gtk[i].id); 1905 1906 key = ieee80211_gtk_rekey_add(vif, status->gtk[i].id, 1907 status->gtk[i].key, 1908 sizeof(status->gtk[i].key), 1909 link_id); 1910 if (IS_ERR(key)) { 1911 /* FW may send also the old keys */ 1912 if (PTR_ERR(key) == -EALREADY) 1913 continue; 1914 return false; 1915 } 1916 1917 for (j = 0; j < ARRAY_SIZE(status->gtk_seq); j++) { 1918 if (!status->gtk_seq[j].valid || 1919 status->gtk_seq[j].key_id != key->keyidx) 1920 continue; 1921 iwl_mvm_set_key_rx_seq_idx(key, status, j); 1922 break; 1923 } 1924 WARN_ON(j == ARRAY_SIZE(status->gtk_seq)); 1925 } 1926 1927 return true; 1928 } 1929 1930 static bool 1931 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status, 1932 struct ieee80211_vif *vif, 1933 struct iwl_multicast_key_data *key_data) 1934 { 1935 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1936 struct ieee80211_key_conf *key_config; 1937 struct ieee80211_key_seq seq; 1938 int link_id = vif->active_links ? __ffs(vif->active_links) : -1; 1939 s8 keyidx = key_data->id; 1940 1941 if (!key_data->len) 1942 return true; 1943 1944 key_config = ieee80211_gtk_rekey_add(vif, keyidx, key_data->key, 1945 sizeof(key_data->key), link_id); 1946 if (IS_ERR(key_config)) { 1947 /* FW may send also the old keys */ 1948 return PTR_ERR(key_config) == -EALREADY; 1949 } 1950 1951 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, key_config->cipher); 1952 ieee80211_set_key_rx_seq(key_config, 0, &seq); 1953 1954 if (keyidx == 4 || keyidx == 5) { 1955 struct iwl_mvm_vif_link_info *mvm_link; 1956 1957 link_id = link_id < 0 ? 0 : link_id; 1958 mvm_link = mvmvif->link[link_id]; 1959 if (mvm_link->igtk) 1960 mvm_link->igtk->hw_key_idx = STA_KEY_IDX_INVALID; 1961 mvm_link->igtk = key_config; 1962 } 1963 1964 if (vif->type == NL80211_IFTYPE_STATION && (keyidx == 6 || keyidx == 7)) 1965 rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6], 1966 key_config); 1967 1968 return true; 1969 } 1970 1971 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm) 1972 { 1973 u8 notif_ver; 1974 1975 if (!fw_has_api(&mvm->fw->ucode_capa, 1976 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) 1977 return 6; 1978 1979 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 1980 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 1981 WOWLAN_GET_STATUSES, 0); 1982 if (!notif_ver) 1983 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP, 1984 WOWLAN_GET_STATUSES, 7); 1985 1986 return notif_ver; 1987 } 1988 1989 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, 1990 struct ieee80211_vif *vif, 1991 struct iwl_wowlan_status_data *status) 1992 { 1993 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 1994 struct iwl_mvm_d3_gtk_iter_data gtkdata = { 1995 .mvm = mvm, 1996 .status = status, 1997 }; 1998 int i; 1999 u32 disconnection_reasons = 2000 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | 2001 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; 2002 2003 if (!status || !vif->bss_conf.bssid) 2004 return false; 2005 /* 2006 * invalidate all other GTKs that might still exist and update 2007 * the one that we used 2008 */ 2009 ieee80211_iter_keys(mvm->hw, vif, 2010 iwl_mvm_d3_update_keys, >kdata); 2011 2012 if (status->num_of_gtk_rekeys) { 2013 __be64 replay_ctr = cpu_to_be64(status->replay_ctr); 2014 2015 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n", 2016 status->num_of_gtk_rekeys); 2017 2018 if (!iwl_mvm_gtk_rekey(status, vif, mvm)) 2019 return false; 2020 2021 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2022 &status->igtk)) 2023 return false; 2024 2025 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) { 2026 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif, 2027 &status->bigtk[i])) 2028 return false; 2029 } 2030 2031 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, 2032 (void *)&replay_ctr, GFP_KERNEL); 2033 } 2034 2035 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP, 2036 WOWLAN_GET_STATUSES, 2037 IWL_FW_CMD_VER_UNKNOWN) < 10) { 2038 mvmvif->seqno_valid = true; 2039 /* +0x10 because the set API expects next-to-use, not last-used */ 2040 mvmvif->seqno = status->non_qos_seq_ctr + 0x10; 2041 } 2042 2043 if (status->wakeup_reasons & disconnection_reasons) 2044 return false; 2045 2046 return true; 2047 } 2048 2049 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status, 2050 struct iwl_wowlan_gtk_status_v2 *data) 2051 { 2052 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key)); 2053 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2054 sizeof(data->tkip_mic_key) > 2055 sizeof(status->gtk[0].key)); 2056 2057 status->gtk[0].len = data->key_len; 2058 status->gtk[0].flags = data->key_flags; 2059 status->gtk[0].id = status->gtk[0].flags & IWL_WOWLAN_GTK_IDX_MASK; 2060 2061 memcpy(status->gtk[0].key, data->key, sizeof(data->key)); 2062 2063 /* if it's as long as the TKIP encryption key, copy MIC key */ 2064 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2065 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2066 data->tkip_mic_key, sizeof(data->tkip_mic_key)); 2067 } 2068 2069 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status, 2070 struct iwl_wowlan_gtk_status_v3 *data) 2071 { 2072 int data_idx, status_idx = 0; 2073 2074 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key)); 2075 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2076 sizeof(data[0].tkip_mic_key) > 2077 sizeof(status->gtk[0].key)); 2078 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM); 2079 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) { 2080 if (!(data[data_idx].key_len)) 2081 continue; 2082 status->gtk[status_idx].len = data[data_idx].key_len; 2083 status->gtk[status_idx].flags = data[data_idx].key_flags; 2084 status->gtk[status_idx].id = status->gtk[status_idx].flags & 2085 IWL_WOWLAN_GTK_IDX_MASK; 2086 2087 memcpy(status->gtk[status_idx].key, data[data_idx].key, 2088 sizeof(data[data_idx].key)); 2089 2090 /* if it's as long as the TKIP encryption key, copy MIC key */ 2091 if (status->gtk[status_idx].len == 2092 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY) 2093 memcpy(status->gtk[status_idx].key + 2094 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2095 data[data_idx].tkip_mic_key, 2096 sizeof(data[data_idx].tkip_mic_key)); 2097 status_idx++; 2098 } 2099 } 2100 2101 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status, 2102 struct iwl_wowlan_igtk_status *data) 2103 { 2104 int i; 2105 2106 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key)); 2107 BUILD_BUG_ON(sizeof(status->igtk.ipn) != sizeof(data->ipn)); 2108 2109 if (!data->key_len) 2110 return; 2111 2112 status->igtk.len = data->key_len; 2113 status->igtk.flags = data->key_flags; 2114 status->igtk.id = u32_get_bits(data->key_flags, 2115 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2116 + WOWLAN_IGTK_MIN_INDEX; 2117 2118 memcpy(status->igtk.key, data->key, sizeof(data->key)); 2119 2120 /* mac80211 expects big endian for memcmp() to work, convert */ 2121 for (i = 0; i < sizeof(data->ipn); i++) 2122 status->igtk.ipn[i] = data->ipn[sizeof(data->ipn) - i - 1]; 2123 } 2124 2125 static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status, 2126 const struct iwl_wowlan_igtk_status *data) 2127 { 2128 int data_idx, status_idx = 0; 2129 2130 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM); 2131 2132 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) { 2133 if (!data[data_idx].key_len) 2134 continue; 2135 2136 status->bigtk[status_idx].len = data[data_idx].key_len; 2137 status->bigtk[status_idx].flags = data[data_idx].key_flags; 2138 status->bigtk[status_idx].id = 2139 u32_get_bits(data[data_idx].key_flags, 2140 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK) 2141 + WOWLAN_BIGTK_MIN_INDEX; 2142 2143 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) < 2144 sizeof(data[data_idx].key)); 2145 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) < 2146 sizeof(data[data_idx].ipn)); 2147 2148 memcpy(status->bigtk[status_idx].key, data[data_idx].key, 2149 sizeof(data[data_idx].key)); 2150 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn, 2151 sizeof(data[data_idx].ipn)); 2152 status_idx++; 2153 } 2154 } 2155 2156 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm, 2157 struct iwl_wowlan_info_notif *data, 2158 struct iwl_wowlan_status_data *status, 2159 u32 len) 2160 { 2161 if (IWL_FW_CHECK(mvm, data->num_mlo_link_keys, 2162 "MLO is not supported, shouldn't receive MLO keys\n")) 2163 return; 2164 2165 if (len < sizeof(*data)) { 2166 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2167 status = NULL; 2168 return; 2169 } 2170 2171 if (mvm->fast_resume) 2172 return; 2173 2174 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2175 iwl_mvm_convert_gtk_v3(status, data->gtk); 2176 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2177 iwl_mvm_convert_bigtk(status, data->bigtk); 2178 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2179 status->pattern_number = le16_to_cpu(data->pattern_number); 2180 status->tid_offloaded_tx = data->tid_offloaded_tx; 2181 if (IWL_FW_CHECK(mvm, 2182 data->tid_offloaded_tx >= 2183 ARRAY_SIZE(status->qos_seq_ctr), 2184 "tid_offloaded_tx is out of bound %d\n", 2185 data->tid_offloaded_tx)) 2186 data->tid_offloaded_tx = 0; 2187 status->qos_seq_ctr[data->tid_offloaded_tx] = 2188 le16_to_cpu(data->qos_seq_ctr); 2189 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2190 status->num_of_gtk_rekeys = 2191 le32_to_cpu(data->num_of_gtk_rekeys); 2192 status->received_beacons = le32_to_cpu(data->received_beacons); 2193 status->tid_tear_down = data->tid_tear_down; 2194 } 2195 2196 static void 2197 iwl_mvm_parse_wowlan_info_notif_v3(struct iwl_mvm *mvm, 2198 struct iwl_wowlan_info_notif_v3 *data, 2199 struct iwl_wowlan_status_data *status, 2200 u32 len) 2201 { 2202 u32 i; 2203 2204 if (len < sizeof(*data)) { 2205 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2206 status = NULL; 2207 return; 2208 } 2209 2210 if (mvm->fast_resume) 2211 return; 2212 2213 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2214 iwl_mvm_convert_gtk_v3(status, data->gtk); 2215 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2216 iwl_mvm_convert_bigtk(status, data->bigtk); 2217 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2218 status->pattern_number = le16_to_cpu(data->pattern_number); 2219 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2220 status->qos_seq_ctr[i] = 2221 le16_to_cpu(data->qos_seq_ctr[i]); 2222 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2223 status->num_of_gtk_rekeys = 2224 le32_to_cpu(data->num_of_gtk_rekeys); 2225 status->received_beacons = le32_to_cpu(data->received_beacons); 2226 status->tid_tear_down = data->tid_tear_down; 2227 } 2228 2229 static void 2230 iwl_mvm_parse_wowlan_info_notif_v1(struct iwl_mvm *mvm, 2231 struct iwl_wowlan_info_notif_v1 *data, 2232 struct iwl_wowlan_status_data *status, 2233 u32 len) 2234 { 2235 u32 i; 2236 2237 if (len < sizeof(*data)) { 2238 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n"); 2239 status = NULL; 2240 return; 2241 } 2242 2243 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc); 2244 iwl_mvm_convert_gtk_v3(status, data->gtk); 2245 iwl_mvm_convert_igtk(status, &data->igtk[0]); 2246 status->replay_ctr = le64_to_cpu(data->replay_ctr); 2247 status->pattern_number = le16_to_cpu(data->pattern_number); 2248 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2249 status->qos_seq_ctr[i] = 2250 le16_to_cpu(data->qos_seq_ctr[i]); 2251 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); 2252 status->num_of_gtk_rekeys = 2253 le32_to_cpu(data->num_of_gtk_rekeys); 2254 status->received_beacons = le32_to_cpu(data->received_beacons); 2255 status->tid_tear_down = data->tid_tear_down; 2256 } 2257 2258 /* Occasionally, templates would be nice. This is one of those times ... */ 2259 #define iwl_mvm_parse_wowlan_status_common(_ver) \ 2260 static struct iwl_wowlan_status_data * \ 2261 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \ 2262 struct iwl_wowlan_status_ ##_ver *data,\ 2263 int len) \ 2264 { \ 2265 struct iwl_wowlan_status_data *status; \ 2266 int data_size, i; \ 2267 \ 2268 if (len < sizeof(*data)) { \ 2269 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2270 return NULL; \ 2271 } \ 2272 \ 2273 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \ 2274 if (len != sizeof(*data) + data_size) { \ 2275 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \ 2276 return NULL; \ 2277 } \ 2278 \ 2279 status = kzalloc(sizeof(*status), GFP_KERNEL); \ 2280 if (!status) \ 2281 return NULL; \ 2282 \ 2283 /* copy all the common fields */ \ 2284 status->replay_ctr = le64_to_cpu(data->replay_ctr); \ 2285 status->pattern_number = le16_to_cpu(data->pattern_number); \ 2286 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \ 2287 for (i = 0; i < 8; i++) \ 2288 status->qos_seq_ctr[i] = \ 2289 le16_to_cpu(data->qos_seq_ctr[i]); \ 2290 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \ 2291 status->num_of_gtk_rekeys = \ 2292 le32_to_cpu(data->num_of_gtk_rekeys); \ 2293 status->received_beacons = le32_to_cpu(data->received_beacons); \ 2294 status->wake_packet_length = \ 2295 le32_to_cpu(data->wake_packet_length); \ 2296 status->wake_packet_bufsize = \ 2297 le32_to_cpu(data->wake_packet_bufsize); \ 2298 if (status->wake_packet_bufsize) { \ 2299 status->wake_packet = \ 2300 kmemdup(data->wake_packet, \ 2301 status->wake_packet_bufsize, \ 2302 GFP_KERNEL); \ 2303 if (!status->wake_packet) { \ 2304 kfree(status); \ 2305 return NULL; \ 2306 } \ 2307 } else { \ 2308 status->wake_packet = NULL; \ 2309 } \ 2310 \ 2311 return status; \ 2312 } 2313 2314 iwl_mvm_parse_wowlan_status_common(v6) 2315 iwl_mvm_parse_wowlan_status_common(v7) 2316 2317 static struct iwl_wowlan_status_data * 2318 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id) 2319 { 2320 struct iwl_wowlan_status_data *status; 2321 struct iwl_wowlan_get_status_cmd get_status_cmd = { 2322 .sta_id = cpu_to_le32(sta_id), 2323 }; 2324 struct iwl_host_cmd cmd = { 2325 .id = WOWLAN_GET_STATUSES, 2326 .flags = CMD_WANT_SKB, 2327 .data = { &get_status_cmd, }, 2328 .len = { sizeof(get_status_cmd), }, 2329 }; 2330 int ret, len; 2331 u8 notif_ver; 2332 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id, 2333 IWL_FW_CMD_VER_UNKNOWN); 2334 2335 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN) 2336 cmd.len[0] = 0; 2337 2338 lockdep_assert_held(&mvm->mutex); 2339 2340 ret = iwl_mvm_send_cmd(mvm, &cmd); 2341 if (ret) { 2342 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret); 2343 return ERR_PTR(ret); 2344 } 2345 2346 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2347 2348 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */ 2349 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm); 2350 2351 if (notif_ver < 7) { 2352 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data; 2353 2354 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len); 2355 if (!status) 2356 goto out_free_resp; 2357 2358 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) > 2359 sizeof(status->gtk[0].key)); 2360 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY + 2361 sizeof(v6->gtk.tkip_mic_key) > 2362 sizeof(status->gtk[0].key)); 2363 2364 /* copy GTK info to the right place */ 2365 memcpy(status->gtk[0].key, v6->gtk.decrypt_key, 2366 sizeof(v6->gtk.decrypt_key)); 2367 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, 2368 v6->gtk.tkip_mic_key, 2369 sizeof(v6->gtk.tkip_mic_key)); 2370 2371 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc, 2372 v6->gtk.key_index); 2373 2374 /* hardcode the key length to 16 since v6 only supports 16 */ 2375 status->gtk[0].len = 16; 2376 2377 /* 2378 * The key index only uses 2 bits (values 0 to 3) and 2379 * we always set bit 7 which means this is the 2380 * currently used key. 2381 */ 2382 status->gtk[0].flags = v6->gtk.key_index | BIT(7); 2383 status->gtk[0].id = v6->gtk.key_index; 2384 } else if (notif_ver == 7) { 2385 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data; 2386 2387 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len); 2388 if (!status) 2389 goto out_free_resp; 2390 2391 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc, 2392 v7->gtk[0].key_flags & IWL_WOWLAN_GTK_IDX_MASK); 2393 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]); 2394 iwl_mvm_convert_igtk(status, &v7->igtk[0]); 2395 } else { 2396 IWL_ERR(mvm, 2397 "Firmware advertises unknown WoWLAN status response %d!\n", 2398 notif_ver); 2399 status = NULL; 2400 } 2401 2402 out_free_resp: 2403 iwl_free_resp(&cmd); 2404 return status; 2405 } 2406 2407 /* releases the MVM mutex */ 2408 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, 2409 struct ieee80211_vif *vif, 2410 struct iwl_wowlan_status_data *status) 2411 { 2412 int i; 2413 bool keep = false; 2414 struct iwl_mvm_sta *mvm_ap_sta; 2415 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2416 int link_id = vif->active_links ? __ffs(vif->active_links) : 0; 2417 struct iwl_mvm_vif_link_info *mvm_link = mvmvif->link[link_id]; 2418 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 2419 PROT_OFFLOAD_GROUP, 2420 WOWLAN_INFO_NOTIFICATION, 2421 IWL_FW_CMD_VER_UNKNOWN); 2422 2423 if (WARN_ON(!mvm_link)) 2424 goto out_unlock; 2425 2426 if (!status) 2427 goto out_unlock; 2428 2429 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n", 2430 status->wakeup_reasons); 2431 2432 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, mvm_link->ap_sta_id); 2433 if (!mvm_ap_sta) 2434 goto out_unlock; 2435 2436 /* firmware stores last-used value, we store next value */ 2437 if (wowlan_info_ver >= 5) { 2438 mvm_ap_sta->tid_data[status->tid_offloaded_tx].seq_number = 2439 status->qos_seq_ctr[status->tid_offloaded_tx] + 0x10; 2440 } else { 2441 for (i = 0; i < IWL_MAX_TID_COUNT; i++) 2442 mvm_ap_sta->tid_data[i].seq_number = 2443 status->qos_seq_ctr[i] + 0x10; 2444 } 2445 2446 if (mvm->trans->mac_cfg->device_family >= IWL_DEVICE_FAMILY_22000) { 2447 i = mvm->offload_tid; 2448 iwl_trans_set_q_ptrs(mvm->trans, 2449 mvm_ap_sta->tid_data[i].txq_id, 2450 mvm_ap_sta->tid_data[i].seq_number >> 4); 2451 } 2452 2453 iwl_mvm_report_wakeup_reasons(mvm, vif, status); 2454 2455 keep = iwl_mvm_setup_connection_keep(mvm, vif, status); 2456 out_unlock: 2457 mutex_unlock(&mvm->mutex); 2458 return keep; 2459 } 2460 2461 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \ 2462 IWL_SCAN_MAX_PROFILES) 2463 2464 struct iwl_mvm_nd_results { 2465 u32 matched_profiles; 2466 u8 matches[ND_QUERY_BUF_LEN]; 2467 }; 2468 2469 static int 2470 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, 2471 struct iwl_mvm_nd_results *results) 2472 { 2473 struct iwl_scan_offload_match_info *query; 2474 struct iwl_host_cmd cmd = { 2475 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, 2476 .flags = CMD_WANT_SKB, 2477 }; 2478 int ret, len; 2479 size_t query_len, matches_len; 2480 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw); 2481 2482 ret = iwl_mvm_send_cmd(mvm, &cmd); 2483 if (ret) { 2484 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); 2485 return ret; 2486 } 2487 2488 if (fw_has_api(&mvm->fw->ucode_capa, 2489 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2490 query_len = sizeof(struct iwl_scan_offload_match_info); 2491 matches_len = sizeof(struct iwl_scan_offload_profile_match) * 2492 max_profiles; 2493 } else { 2494 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1); 2495 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) * 2496 max_profiles; 2497 } 2498 2499 len = iwl_rx_packet_payload_len(cmd.resp_pkt); 2500 if (len < query_len) { 2501 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); 2502 ret = -EIO; 2503 goto out_free_resp; 2504 } 2505 2506 query = (void *)cmd.resp_pkt->data; 2507 2508 results->matched_profiles = le32_to_cpu(query->matched_profiles); 2509 memcpy(results->matches, query->matches, matches_len); 2510 2511 #ifdef CONFIG_IWLWIFI_DEBUGFS 2512 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); 2513 #endif 2514 2515 out_free_resp: 2516 iwl_free_resp(&cmd); 2517 return ret; 2518 } 2519 2520 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm, 2521 struct iwl_mvm_nd_results *results, 2522 int idx) 2523 { 2524 int n_chans = 0, i; 2525 2526 if (fw_has_api(&mvm->fw->ucode_capa, 2527 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2528 struct iwl_scan_offload_profile_match *matches = 2529 (void *)results->matches; 2530 2531 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++) 2532 n_chans += hweight8(matches[idx].matching_channels[i]); 2533 } else { 2534 struct iwl_scan_offload_profile_match_v1 *matches = 2535 (void *)results->matches; 2536 2537 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++) 2538 n_chans += hweight8(matches[idx].matching_channels[i]); 2539 } 2540 2541 return n_chans; 2542 } 2543 2544 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm, 2545 struct iwl_mvm_nd_results *results, 2546 struct cfg80211_wowlan_nd_match *match, 2547 int idx) 2548 { 2549 int i; 2550 int n_channels = 0; 2551 2552 if (fw_has_api(&mvm->fw->ucode_capa, 2553 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) { 2554 struct iwl_scan_offload_profile_match *matches = 2555 (void *)results->matches; 2556 2557 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++) 2558 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2559 match->channels[n_channels++] = 2560 mvm->nd_channels[i]->center_freq; 2561 } else { 2562 struct iwl_scan_offload_profile_match_v1 *matches = 2563 (void *)results->matches; 2564 2565 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++) 2566 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8))) 2567 match->channels[n_channels++] = 2568 mvm->nd_channels[i]->center_freq; 2569 } 2570 /* We may have ended up with fewer channels than we allocated. */ 2571 match->n_channels = n_channels; 2572 } 2573 2574 /** 2575 * enum iwl_d3_notif - d3 notifications 2576 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received 2577 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received 2578 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received 2579 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received 2580 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received 2581 */ 2582 enum iwl_d3_notif { 2583 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0), 2584 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1), 2585 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2), 2586 IWL_D3_ND_MATCH_INFO = BIT(3), 2587 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4) 2588 }; 2589 2590 /* manage d3 resume data */ 2591 struct iwl_d3_data { 2592 struct iwl_wowlan_status_data *status; 2593 bool test; 2594 u32 d3_end_flags; 2595 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */ 2596 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */ 2597 struct iwl_mvm_nd_results *nd_results; 2598 bool nd_results_valid; 2599 }; 2600 2601 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, 2602 struct ieee80211_vif *vif, 2603 struct iwl_d3_data *d3_data) 2604 { 2605 struct cfg80211_wowlan_nd_info *net_detect = NULL; 2606 struct cfg80211_wowlan_wakeup wakeup = { 2607 .pattern_idx = -1, 2608 }; 2609 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; 2610 unsigned long matched_profiles; 2611 u32 reasons = 0; 2612 int i, n_matches, ret; 2613 2614 if (WARN_ON(!d3_data || !d3_data->status)) 2615 goto out; 2616 2617 reasons = d3_data->status->wakeup_reasons; 2618 2619 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) 2620 wakeup.rfkill_release = true; 2621 2622 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) 2623 goto out; 2624 2625 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 2626 WOWLAN_INFO_NOTIFICATION, 0)) { 2627 IWL_INFO(mvm, "Query FW for ND results\n"); 2628 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results); 2629 2630 } else { 2631 IWL_INFO(mvm, "Notification based ND results\n"); 2632 ret = d3_data->nd_results_valid ? 0 : -1; 2633 } 2634 2635 if (ret || !d3_data->nd_results->matched_profiles) { 2636 wakeup_report = NULL; 2637 goto out; 2638 } 2639 2640 matched_profiles = d3_data->nd_results->matched_profiles; 2641 if (mvm->n_nd_match_sets) { 2642 n_matches = hweight_long(matched_profiles); 2643 } else { 2644 IWL_ERR(mvm, "no net detect match information available\n"); 2645 n_matches = 0; 2646 } 2647 2648 net_detect = kzalloc(struct_size(net_detect, matches, n_matches), 2649 GFP_KERNEL); 2650 if (!net_detect || !n_matches) 2651 goto out_report_nd; 2652 net_detect->n_matches = n_matches; 2653 n_matches = 0; 2654 2655 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { 2656 struct cfg80211_wowlan_nd_match *match; 2657 int idx, n_channels = 0; 2658 2659 n_channels = iwl_mvm_query_num_match_chans(mvm, 2660 d3_data->nd_results, 2661 i); 2662 2663 match = kzalloc(struct_size(match, channels, n_channels), 2664 GFP_KERNEL); 2665 if (!match) 2666 goto out_report_nd; 2667 match->n_channels = n_channels; 2668 2669 net_detect->matches[n_matches++] = match; 2670 2671 /* We inverted the order of the SSIDs in the scan 2672 * request, so invert the index here. 2673 */ 2674 idx = mvm->n_nd_match_sets - i - 1; 2675 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; 2676 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, 2677 match->ssid.ssid_len); 2678 2679 if (mvm->n_nd_channels < n_channels) 2680 continue; 2681 2682 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i); 2683 } 2684 /* We may have fewer matches than we allocated. */ 2685 net_detect->n_matches = n_matches; 2686 2687 out_report_nd: 2688 wakeup.net_detect = net_detect; 2689 out: 2690 iwl_mvm_free_nd(mvm); 2691 2692 mutex_unlock(&mvm->mutex); 2693 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); 2694 2695 if (net_detect) { 2696 for (i = 0; i < net_detect->n_matches; i++) 2697 kfree(net_detect->matches[i]); 2698 kfree(net_detect); 2699 } 2700 } 2701 2702 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, 2703 struct ieee80211_vif *vif) 2704 { 2705 /* skip the one we keep connection on */ 2706 if (data == vif) 2707 return; 2708 2709 if (vif->type == NL80211_IFTYPE_STATION) 2710 ieee80211_resume_disconnect(vif); 2711 } 2712 2713 enum rt_status { 2714 FW_ALIVE, 2715 FW_NEEDS_RESET, 2716 FW_ERROR, 2717 }; 2718 2719 static enum rt_status iwl_mvm_check_rt_status(struct iwl_mvm *mvm, 2720 struct ieee80211_vif *vif) 2721 { 2722 u32 err_id; 2723 2724 /* check for lmac1 error */ 2725 if (iwl_fwrt_read_err_table(mvm->trans, 2726 mvm->trans->dbg.lmac_error_event_table[0], 2727 &err_id)) { 2728 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) { 2729 IWL_WARN(mvm, "Rfkill was toggled during suspend\n"); 2730 if (vif) { 2731 struct cfg80211_wowlan_wakeup wakeup = { 2732 .rfkill_release = true, 2733 }; 2734 2735 ieee80211_report_wowlan_wakeup(vif, &wakeup, 2736 GFP_KERNEL); 2737 } 2738 2739 return FW_NEEDS_RESET; 2740 } 2741 return FW_ERROR; 2742 } 2743 2744 /* check if we have lmac2 set and check for error */ 2745 if (iwl_fwrt_read_err_table(mvm->trans, 2746 mvm->trans->dbg.lmac_error_event_table[1], 2747 NULL)) 2748 return FW_ERROR; 2749 2750 /* check for umac error */ 2751 if (iwl_fwrt_read_err_table(mvm->trans, 2752 mvm->trans->dbg.umac_error_event_table, 2753 NULL)) 2754 return FW_ERROR; 2755 2756 return FW_ALIVE; 2757 } 2758 2759 /* 2760 * This function assumes: 2761 * 1. The mutex is already held. 2762 * 2. The callee functions unlock the mutex. 2763 */ 2764 static bool 2765 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm, 2766 struct ieee80211_vif *vif, 2767 struct iwl_d3_data *d3_data) 2768 { 2769 lockdep_assert_held(&mvm->mutex); 2770 2771 /* if FW uses status notification, status shouldn't be NULL here */ 2772 if (!d3_data->status) { 2773 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 2774 u8 sta_id = mvm->net_detect ? IWL_INVALID_STA : 2775 mvmvif->deflink.ap_sta_id; 2776 2777 /* bug - FW with MLO has status notification */ 2778 WARN_ON(ieee80211_vif_is_mld(vif)); 2779 2780 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id); 2781 } 2782 2783 if (mvm->net_detect) { 2784 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data); 2785 } else { 2786 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif, 2787 d3_data->status); 2788 2789 #ifdef CONFIG_IWLWIFI_DEBUGFS 2790 if (keep) 2791 mvm->keep_vif = vif; 2792 #endif 2793 2794 return keep; 2795 } 2796 return false; 2797 } 2798 2799 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \ 2800 IWL_WOWLAN_WAKEUP_BY_PATTERN | \ 2801 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\ 2802 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\ 2803 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\ 2804 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD) 2805 2806 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm, 2807 struct iwl_wowlan_wake_pkt_notif *notif, 2808 struct iwl_wowlan_status_data *status, 2809 u32 len) 2810 { 2811 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length); 2812 2813 if (len < sizeof(*notif)) { 2814 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n"); 2815 return -EIO; 2816 } 2817 2818 if (WARN_ON(!status)) { 2819 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n"); 2820 return -EIO; 2821 } 2822 2823 if (WARN_ON(!(status->wakeup_reasons & 2824 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) { 2825 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n", 2826 status->wakeup_reasons); 2827 return -EIO; 2828 } 2829 2830 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet); 2831 2832 /* data_size got the padding from the notification, remove it. */ 2833 if (packet_len < data_size) 2834 data_size = packet_len; 2835 2836 status->wake_packet = kmemdup(notif->wake_packet, data_size, 2837 GFP_ATOMIC); 2838 2839 if (!status->wake_packet) 2840 return -ENOMEM; 2841 2842 status->wake_packet_length = packet_len; 2843 status->wake_packet_bufsize = data_size; 2844 2845 return 0; 2846 } 2847 2848 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm, 2849 struct iwl_d3_data *d3_data, 2850 struct iwl_scan_offload_match_info *notif, 2851 u32 len) 2852 { 2853 struct iwl_wowlan_status_data *status = d3_data->status; 2854 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm); 2855 struct iwl_mvm_nd_results *results = d3_data->nd_results; 2856 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) * 2857 iwl_umac_scan_get_max_profiles(mvm->fw); 2858 2859 if (IS_ERR_OR_NULL(vif)) 2860 return; 2861 2862 if (len < sizeof(struct iwl_scan_offload_match_info)) { 2863 IWL_ERR(mvm, "Invalid scan match info notification\n"); 2864 return; 2865 } 2866 2867 if (!mvm->net_detect) { 2868 IWL_ERR(mvm, "Unexpected scan match info notification\n"); 2869 return; 2870 } 2871 2872 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { 2873 IWL_ERR(mvm, 2874 "Ignore scan match info notification: no reason\n"); 2875 return; 2876 } 2877 2878 #ifdef CONFIG_IWLWIFI_DEBUGFS 2879 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done); 2880 #endif 2881 2882 results->matched_profiles = le32_to_cpu(notif->matched_profiles); 2883 IWL_INFO(mvm, "number of matched profiles=%u\n", 2884 results->matched_profiles); 2885 2886 if (results->matched_profiles) { 2887 memcpy(results->matches, notif->matches, matches_len); 2888 d3_data->nd_results_valid = true; 2889 } 2890 2891 /* no scan should be active at this point */ 2892 mvm->scan_status = 0; 2893 for (i = 0; i < mvm->max_scans; i++) 2894 mvm->scan_uid_status[i] = 0; 2895 } 2896 2897 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait, 2898 struct iwl_rx_packet *pkt, void *data) 2899 { 2900 struct iwl_mvm *mvm = 2901 container_of(notif_wait, struct iwl_mvm, notif_wait); 2902 struct iwl_d3_data *d3_data = data; 2903 u32 len = iwl_rx_packet_payload_len(pkt); 2904 int ret; 2905 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw, 2906 PROT_OFFLOAD_GROUP, 2907 WOWLAN_INFO_NOTIFICATION, 2908 IWL_FW_CMD_VER_UNKNOWN); 2909 2910 2911 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) { 2912 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): { 2913 2914 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) { 2915 /* We might get two notifications due to dual bss */ 2916 IWL_DEBUG_WOWLAN(mvm, 2917 "Got additional wowlan info notification\n"); 2918 break; 2919 } 2920 2921 if (wowlan_info_ver == 1) { 2922 struct iwl_wowlan_info_notif_v1 *notif_v1 = 2923 (void *)pkt->data; 2924 2925 iwl_mvm_parse_wowlan_info_notif_v1(mvm, notif_v1, 2926 d3_data->status, 2927 len); 2928 } else if (wowlan_info_ver == 3) { 2929 struct iwl_wowlan_info_notif_v3 *notif = 2930 (void *)pkt->data; 2931 2932 iwl_mvm_parse_wowlan_info_notif_v3(mvm, notif, 2933 d3_data->status, len); 2934 } else if (wowlan_info_ver == 5) { 2935 struct iwl_wowlan_info_notif *notif = 2936 (void *)pkt->data; 2937 2938 iwl_mvm_parse_wowlan_info_notif(mvm, notif, 2939 d3_data->status, len); 2940 } else { 2941 IWL_FW_CHECK(mvm, 1, 2942 "Firmware advertises unknown WoWLAN info notification %d!\n", 2943 wowlan_info_ver); 2944 return false; 2945 } 2946 2947 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO; 2948 2949 if (d3_data->status && 2950 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT) 2951 /* We are supposed to get also wake packet notif */ 2952 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 2953 2954 break; 2955 } 2956 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): { 2957 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data; 2958 2959 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) { 2960 /* We shouldn't get two wake packet notifications */ 2961 IWL_ERR(mvm, 2962 "Got additional wowlan wake packet notification\n"); 2963 } else { 2964 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT; 2965 len = iwl_rx_packet_payload_len(pkt); 2966 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif, 2967 d3_data->status, 2968 len); 2969 if (ret) 2970 IWL_ERR(mvm, 2971 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n"); 2972 } 2973 2974 break; 2975 } 2976 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): { 2977 struct iwl_scan_offload_match_info *notif = (void *)pkt->data; 2978 2979 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) { 2980 IWL_ERR(mvm, 2981 "Got additional netdetect match info\n"); 2982 break; 2983 } 2984 2985 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO; 2986 2987 /* explicitly set this in the 'expected' as well */ 2988 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO; 2989 2990 len = iwl_rx_packet_payload_len(pkt); 2991 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len); 2992 break; 2993 } 2994 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): { 2995 struct iwl_d3_end_notif *notif = (void *)pkt->data; 2996 2997 d3_data->d3_end_flags = __le32_to_cpu(notif->flags); 2998 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF; 2999 3000 break; 3001 } 3002 default: 3003 WARN_ON(1); 3004 } 3005 3006 return d3_data->notif_received == d3_data->notif_expected; 3007 } 3008 3009 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test) 3010 { 3011 int ret; 3012 enum iwl_d3_status d3_status; 3013 struct iwl_host_cmd cmd = { 3014 .id = D0I3_END_CMD, 3015 .flags = CMD_WANT_SKB, 3016 }; 3017 bool reset = fw_has_capa(&mvm->fw->ucode_capa, 3018 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3019 3020 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset); 3021 if (ret) 3022 return ret; 3023 3024 if (d3_status != IWL_D3_STATUS_ALIVE) { 3025 IWL_INFO(mvm, "Device was reset during suspend\n"); 3026 return -ENOENT; 3027 } 3028 3029 /* 3030 * We should trigger resume flow using command only for 22000 family 3031 * AX210 and above don't need the command since they have 3032 * the doorbell interrupt. 3033 */ 3034 if (mvm->trans->mac_cfg->device_family <= IWL_DEVICE_FAMILY_22000 && 3035 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) { 3036 ret = iwl_mvm_send_cmd(mvm, &cmd); 3037 if (ret < 0) 3038 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n", 3039 ret); 3040 } 3041 3042 return ret; 3043 } 3044 3045 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 3) 3046 3047 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm, 3048 struct iwl_d3_data *d3_data) 3049 { 3050 static const u16 d3_resume_notif[] = { 3051 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION), 3052 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION), 3053 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF), 3054 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3055 }; 3056 static const u16 d3_fast_resume_notif[] = { 3057 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION) 3058 }; 3059 struct iwl_notification_wait wait_d3_notif; 3060 int ret; 3061 3062 if (mvm->fast_resume) 3063 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3064 d3_fast_resume_notif, 3065 ARRAY_SIZE(d3_fast_resume_notif), 3066 iwl_mvm_wait_d3_notif, d3_data); 3067 else 3068 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif, 3069 d3_resume_notif, 3070 ARRAY_SIZE(d3_resume_notif), 3071 iwl_mvm_wait_d3_notif, d3_data); 3072 3073 ret = iwl_mvm_resume_firmware(mvm, d3_data->test); 3074 if (ret) { 3075 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif); 3076 return ret; 3077 } 3078 3079 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif, 3080 IWL_MVM_D3_NOTIF_TIMEOUT); 3081 } 3082 3083 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm) 3084 { 3085 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3086 WOWLAN_INFO_NOTIFICATION, 0) && 3087 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3088 WOWLAN_WAKE_PKT_NOTIFICATION, 0) && 3089 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3090 D3_END_NOTIFICATION, 0); 3091 } 3092 3093 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) 3094 { 3095 struct ieee80211_vif *vif = NULL; 3096 int ret = 1; 3097 struct iwl_mvm_nd_results results = {}; 3098 struct iwl_d3_data d3_data = { 3099 .test = test, 3100 .notif_expected = 3101 IWL_D3_NOTIF_WOWLAN_INFO | 3102 IWL_D3_NOTIF_D3_END_NOTIF, 3103 .nd_results_valid = false, 3104 .nd_results = &results, 3105 }; 3106 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3107 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3108 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa, 3109 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST); 3110 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm); 3111 enum rt_status rt_status; 3112 bool keep = false; 3113 3114 mutex_lock(&mvm->mutex); 3115 3116 /* Apparently, the device went away and device_powered_off() was called, 3117 * don't even try to read the rt_status, the device is currently 3118 * inaccessible. 3119 */ 3120 if (!test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status)) { 3121 IWL_INFO(mvm, 3122 "Can't resume, device_powered_off() was called during wowlan\n"); 3123 goto err; 3124 } 3125 3126 mvm->last_reset_or_resume_time_jiffies = jiffies; 3127 3128 /* get the BSS vif pointer again */ 3129 vif = iwl_mvm_get_bss_vif(mvm); 3130 if (IS_ERR_OR_NULL(vif)) 3131 goto err; 3132 3133 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3134 3135 rt_status = iwl_mvm_check_rt_status(mvm, vif); 3136 if (rt_status != FW_ALIVE) { 3137 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3138 if (rt_status == FW_ERROR) { 3139 IWL_ERR(mvm, "FW Error occurred during suspend. Restarting.\n"); 3140 iwl_mvm_dump_nic_error_log(mvm); 3141 iwl_dbg_tlv_time_point(&mvm->fwrt, 3142 IWL_FW_INI_TIME_POINT_FW_ASSERT, 3143 NULL); 3144 iwl_fw_dbg_collect_desc(&mvm->fwrt, 3145 &iwl_dump_desc_assert, 3146 false, 0); 3147 } 3148 ret = 1; 3149 goto err; 3150 } 3151 3152 if (resume_notif_based) { 3153 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL); 3154 if (!d3_data.status) { 3155 IWL_ERR(mvm, "Failed to allocate wowlan status\n"); 3156 ret = -ENOMEM; 3157 goto err; 3158 } 3159 3160 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3161 if (ret) 3162 goto err; 3163 } else { 3164 ret = iwl_mvm_resume_firmware(mvm, test); 3165 if (ret < 0) 3166 goto err; 3167 } 3168 3169 /* when reset is required we can't send these following commands */ 3170 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE) 3171 goto query_wakeup_reasons; 3172 3173 /* 3174 * Query the current location and source from the D3 firmware so we 3175 * can play it back when we re-intiailize the D0 firmware 3176 */ 3177 iwl_mvm_update_changed_regdom(mvm); 3178 3179 /* Re-configure PPAG settings */ 3180 iwl_mvm_ppag_send_cmd(mvm); 3181 3182 if (!unified_image) 3183 /* Re-configure default SAR profile */ 3184 iwl_mvm_sar_select_profile(mvm, 1, 1); 3185 3186 if (mvm->net_detect && unified_image) { 3187 /* If this is a non-unified image, we restart the FW, 3188 * so no need to stop the netdetect scan. If that 3189 * fails, continue and try to get the wake-up reasons, 3190 * but trigger a HW restart by keeping a failure code 3191 * in ret. 3192 */ 3193 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT, 3194 false); 3195 } 3196 3197 query_wakeup_reasons: 3198 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data); 3199 /* has unlocked the mutex, so skip that */ 3200 goto out; 3201 3202 err: 3203 mutex_unlock(&mvm->mutex); 3204 out: 3205 if (d3_data.status) 3206 kfree(d3_data.status->wake_packet); 3207 kfree(d3_data.status); 3208 iwl_mvm_free_nd(mvm); 3209 3210 if (!d3_data.test && !mvm->net_detect) 3211 ieee80211_iterate_active_interfaces_mtx(mvm->hw, 3212 IEEE80211_IFACE_ITER_NORMAL, 3213 iwl_mvm_d3_disconnect_iter, 3214 keep ? vif : NULL); 3215 3216 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3217 3218 /* no need to reset the device in unified images, if successful */ 3219 if (unified_image && !ret) { 3220 /* nothing else to do if we already sent D0I3_END_CMD */ 3221 if (d0i3_first) 3222 return 0; 3223 3224 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP, 3225 D3_END_NOTIFICATION, 0)) { 3226 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL); 3227 if (!ret) 3228 return 0; 3229 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) { 3230 return 0; 3231 } 3232 } 3233 3234 /* 3235 * Reconfigure the device in one of the following cases: 3236 * 1. We are not using a unified image 3237 * 2. We are using a unified image but had an error while exiting D3 3238 */ 3239 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status); 3240 3241 return 1; 3242 } 3243 3244 int iwl_mvm_resume(struct ieee80211_hw *hw) 3245 { 3246 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3247 int ret; 3248 3249 ret = __iwl_mvm_resume(mvm, false); 3250 3251 iwl_mvm_resume_tcm(mvm); 3252 3253 iwl_fw_runtime_resume(&mvm->fwrt); 3254 3255 return ret; 3256 } 3257 3258 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) 3259 { 3260 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); 3261 3262 device_set_wakeup_enable(mvm->trans->dev, enabled); 3263 } 3264 3265 void iwl_mvm_fast_suspend(struct iwl_mvm *mvm) 3266 { 3267 struct iwl_d3_manager_config d3_cfg_cmd_data = {}; 3268 int ret; 3269 3270 lockdep_assert_held(&mvm->mutex); 3271 3272 IWL_DEBUG_WOWLAN(mvm, "Starting fast suspend flow\n"); 3273 3274 mvm->fast_resume = true; 3275 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3276 3277 WARN_ON(iwl_mvm_power_update_device(mvm)); 3278 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, 0, 3279 sizeof(d3_cfg_cmd_data), &d3_cfg_cmd_data); 3280 if (ret) 3281 IWL_ERR(mvm, 3282 "fast suspend: couldn't send D3_CONFIG_CMD %d\n", ret); 3283 3284 ret = iwl_trans_d3_suspend(mvm->trans, false, false); 3285 if (ret) 3286 IWL_ERR(mvm, "fast suspend: trans_d3_suspend failed %d\n", ret); 3287 } 3288 3289 int iwl_mvm_fast_resume(struct iwl_mvm *mvm) 3290 { 3291 struct iwl_d3_data d3_data = { 3292 .notif_expected = 3293 IWL_D3_NOTIF_D3_END_NOTIF, 3294 }; 3295 enum rt_status rt_status; 3296 int ret; 3297 3298 lockdep_assert_held(&mvm->mutex); 3299 3300 IWL_DEBUG_WOWLAN(mvm, "Starting the fast resume flow\n"); 3301 3302 mvm->last_reset_or_resume_time_jiffies = jiffies; 3303 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3304 3305 rt_status = iwl_mvm_check_rt_status(mvm, NULL); 3306 if (rt_status != FW_ALIVE) { 3307 set_bit(STATUS_FW_ERROR, &mvm->trans->status); 3308 if (rt_status == FW_ERROR) { 3309 IWL_ERR(mvm, 3310 "iwl_mvm_check_rt_status failed, device is gone during suspend\n"); 3311 iwl_mvm_dump_nic_error_log(mvm); 3312 iwl_dbg_tlv_time_point(&mvm->fwrt, 3313 IWL_FW_INI_TIME_POINT_FW_ASSERT, 3314 NULL); 3315 iwl_fw_dbg_collect_desc(&mvm->fwrt, 3316 &iwl_dump_desc_assert, 3317 false, 0); 3318 } 3319 mvm->trans->state = IWL_TRANS_NO_FW; 3320 ret = -ENODEV; 3321 3322 goto out; 3323 } 3324 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data); 3325 3326 if (ret) { 3327 IWL_ERR(mvm, "Couldn't get the d3 notif %d\n", ret); 3328 mvm->trans->state = IWL_TRANS_NO_FW; 3329 } 3330 3331 out: 3332 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status); 3333 mvm->fast_resume = false; 3334 3335 return ret; 3336 } 3337 3338 #ifdef CONFIG_IWLWIFI_DEBUGFS 3339 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) 3340 { 3341 struct iwl_mvm *mvm = inode->i_private; 3342 int err; 3343 3344 if (mvm->d3_test_active) 3345 return -EBUSY; 3346 3347 file->private_data = inode->i_private; 3348 3349 iwl_mvm_pause_tcm(mvm, true); 3350 3351 iwl_fw_runtime_suspend(&mvm->fwrt); 3352 3353 /* start pseudo D3 */ 3354 rtnl_lock(); 3355 wiphy_lock(mvm->hw->wiphy); 3356 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); 3357 wiphy_unlock(mvm->hw->wiphy); 3358 rtnl_unlock(); 3359 if (err > 0) 3360 err = -EINVAL; 3361 if (err) 3362 return err; 3363 3364 mvm->d3_test_active = true; 3365 mvm->keep_vif = NULL; 3366 return 0; 3367 } 3368 3369 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, 3370 size_t count, loff_t *ppos) 3371 { 3372 struct iwl_mvm *mvm = file->private_data; 3373 unsigned long end = jiffies + 60 * HZ; 3374 u32 pme_asserted; 3375 3376 while (true) { 3377 /* read pme_ptr if available */ 3378 if (mvm->d3_test_pme_ptr) { 3379 pme_asserted = iwl_trans_read_mem32(mvm->trans, 3380 mvm->d3_test_pme_ptr); 3381 if (pme_asserted) 3382 break; 3383 } 3384 3385 if (msleep_interruptible(100)) 3386 break; 3387 3388 if (time_is_before_jiffies(end)) { 3389 IWL_ERR(mvm, 3390 "ending pseudo-D3 with timeout after ~60 seconds\n"); 3391 return -ETIMEDOUT; 3392 } 3393 } 3394 3395 return 0; 3396 } 3397 3398 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, 3399 struct ieee80211_vif *vif) 3400 { 3401 /* skip the one we keep connection on */ 3402 if (_data == vif) 3403 return; 3404 3405 if (vif->type == NL80211_IFTYPE_STATION) 3406 ieee80211_connection_loss(vif); 3407 } 3408 3409 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) 3410 { 3411 struct iwl_mvm *mvm = inode->i_private; 3412 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, 3413 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); 3414 3415 mvm->d3_test_active = false; 3416 3417 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt); 3418 3419 rtnl_lock(); 3420 wiphy_lock(mvm->hw->wiphy); 3421 __iwl_mvm_resume(mvm, true); 3422 wiphy_unlock(mvm->hw->wiphy); 3423 rtnl_unlock(); 3424 3425 iwl_mvm_resume_tcm(mvm); 3426 3427 iwl_fw_runtime_resume(&mvm->fwrt); 3428 3429 iwl_abort_notification_waits(&mvm->notif_wait); 3430 if (!unified_image) { 3431 int remaining_time = 10; 3432 3433 ieee80211_restart_hw(mvm->hw); 3434 3435 /* wait for restart and disconnect all interfaces */ 3436 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && 3437 remaining_time > 0) { 3438 remaining_time--; 3439 msleep(1000); 3440 } 3441 3442 if (remaining_time == 0) 3443 IWL_ERR(mvm, "Timed out waiting for HW restart!\n"); 3444 } 3445 3446 ieee80211_iterate_active_interfaces_atomic( 3447 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 3448 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); 3449 3450 return 0; 3451 } 3452 3453 const struct file_operations iwl_dbgfs_d3_test_ops = { 3454 .open = iwl_mvm_d3_test_open, 3455 .read = iwl_mvm_d3_test_read, 3456 .release = iwl_mvm_d3_test_release, 3457 }; 3458 #endif 3459