Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * |
| 3 | * This file is provided under a dual BSD/GPLv2 license. When using or |
| 4 | * redistributing this file, you may do so under either license. |
| 5 | * |
| 6 | * GPL LICENSE SUMMARY |
| 7 | * |
| 8 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of version 2 of the GNU General Public License as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, |
| 22 | * USA |
| 23 | * |
| 24 | * The full GNU General Public License is included in this distribution |
| 25 | * in the file called LICENSE.GPL. |
| 26 | * |
| 27 | * Contact Information: |
| 28 | * Intel Linux Wireless <ilw@linux.intel.com> |
| 29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| 30 | * |
| 31 | * BSD LICENSE |
| 32 | * |
| 33 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. |
| 34 | * All rights reserved. |
| 35 | * |
| 36 | * Redistribution and use in source and binary forms, with or without |
| 37 | * modification, are permitted provided that the following conditions |
| 38 | * are met: |
| 39 | * |
| 40 | * * Redistributions of source code must retain the above copyright |
| 41 | * notice, this list of conditions and the following disclaimer. |
| 42 | * * Redistributions in binary form must reproduce the above copyright |
| 43 | * notice, this list of conditions and the following disclaimer in |
| 44 | * the documentation and/or other materials provided with the |
| 45 | * distribution. |
| 46 | * * Neither the name Intel Corporation nor the names of its |
| 47 | * contributors may be used to endorse or promote products derived |
| 48 | * from this software without specific prior written permission. |
| 49 | * |
| 50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 61 | * |
| 62 | *****************************************************************************/ |
| 63 | |
| 64 | #include <net/cfg80211.h> |
| 65 | #include <net/ipv6.h> |
| 66 | #include "iwl-modparams.h" |
| 67 | #include "fw-api.h" |
| 68 | #include "mvm.h" |
| 69 | |
| 70 | void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, |
| 71 | struct ieee80211_vif *vif, |
| 72 | struct cfg80211_gtk_rekey_data *data) |
| 73 | { |
| 74 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| 75 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 76 | |
| 77 | if (iwlwifi_mod_params.sw_crypto) |
| 78 | return; |
| 79 | |
| 80 | mutex_lock(&mvm->mutex); |
| 81 | |
| 82 | memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN); |
| 83 | memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN); |
| 84 | mvmvif->rekey_data.replay_ctr = |
| 85 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); |
| 86 | mvmvif->rekey_data.valid = true; |
| 87 | |
| 88 | mutex_unlock(&mvm->mutex); |
| 89 | } |
| 90 | |
| 91 | #if IS_ENABLED(CONFIG_IPV6) |
| 92 | void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, |
| 93 | struct ieee80211_vif *vif, |
| 94 | struct inet6_dev *idev) |
| 95 | { |
| 96 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 97 | struct inet6_ifaddr *ifa; |
| 98 | int idx = 0; |
| 99 | |
Emmanuel Grumbach | a3777e0 | 2013-02-10 13:07:08 +0200 | [diff] [blame] | 100 | read_lock_bh(&idev->lock); |
Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 101 | list_for_each_entry(ifa, &idev->addr_list, if_list) { |
| 102 | mvmvif->target_ipv6_addrs[idx] = ifa->addr; |
| 103 | idx++; |
| 104 | if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS) |
| 105 | break; |
| 106 | } |
Emmanuel Grumbach | a3777e0 | 2013-02-10 13:07:08 +0200 | [diff] [blame] | 107 | read_unlock_bh(&idev->lock); |
Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 108 | |
| 109 | mvmvif->num_target_ipv6_addrs = idx; |
| 110 | } |
| 111 | #endif |
| 112 | |
| 113 | void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, |
| 114 | struct ieee80211_vif *vif, int idx) |
| 115 | { |
| 116 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 117 | |
| 118 | mvmvif->tx_key_idx = idx; |
| 119 | } |
| 120 | |
| 121 | static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) |
| 122 | { |
| 123 | int i; |
| 124 | |
| 125 | for (i = 0; i < IWL_P1K_SIZE; i++) |
| 126 | out[i] = cpu_to_le16(p1k[i]); |
| 127 | } |
| 128 | |
| 129 | struct wowlan_key_data { |
| 130 | struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; |
| 131 | struct iwl_wowlan_tkip_params_cmd *tkip; |
| 132 | bool error, use_rsc_tsc, use_tkip; |
| 133 | int gtk_key_idx; |
| 134 | }; |
| 135 | |
| 136 | static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, |
| 137 | struct ieee80211_vif *vif, |
| 138 | struct ieee80211_sta *sta, |
| 139 | struct ieee80211_key_conf *key, |
| 140 | void *_data) |
| 141 | { |
| 142 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| 143 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 144 | struct wowlan_key_data *data = _data; |
| 145 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; |
| 146 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; |
| 147 | struct iwl_p1k_cache *rx_p1ks; |
| 148 | u8 *rx_mic_key; |
| 149 | struct ieee80211_key_seq seq; |
| 150 | u32 cur_rx_iv32 = 0; |
| 151 | u16 p1k[IWL_P1K_SIZE]; |
| 152 | int ret, i; |
| 153 | |
| 154 | mutex_lock(&mvm->mutex); |
| 155 | |
| 156 | switch (key->cipher) { |
| 157 | case WLAN_CIPHER_SUITE_WEP40: |
| 158 | case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ |
| 159 | struct { |
| 160 | struct iwl_mvm_wep_key_cmd wep_key_cmd; |
| 161 | struct iwl_mvm_wep_key wep_key; |
| 162 | } __packed wkc = { |
| 163 | .wep_key_cmd.mac_id_n_color = |
| 164 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
| 165 | mvmvif->color)), |
| 166 | .wep_key_cmd.num_keys = 1, |
| 167 | /* firmware sets STA_KEY_FLG_WEP_13BYTES */ |
| 168 | .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, |
| 169 | .wep_key.key_index = key->keyidx, |
| 170 | .wep_key.key_size = key->keylen, |
| 171 | }; |
| 172 | |
| 173 | /* |
| 174 | * This will fail -- the key functions don't set support |
| 175 | * pairwise WEP keys. However, that's better than silently |
| 176 | * failing WoWLAN. Or maybe not? |
| 177 | */ |
| 178 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) |
| 179 | break; |
| 180 | |
| 181 | memcpy(&wkc.wep_key.key[3], key->key, key->keylen); |
| 182 | if (key->keyidx == mvmvif->tx_key_idx) { |
| 183 | /* TX key must be at offset 0 */ |
| 184 | wkc.wep_key.key_offset = 0; |
| 185 | } else { |
| 186 | /* others start at 1 */ |
| 187 | data->gtk_key_idx++; |
| 188 | wkc.wep_key.key_offset = data->gtk_key_idx; |
| 189 | } |
| 190 | |
| 191 | ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, CMD_SYNC, |
| 192 | sizeof(wkc), &wkc); |
| 193 | data->error = ret != 0; |
| 194 | |
| 195 | /* don't upload key again */ |
| 196 | goto out_unlock; |
| 197 | } |
| 198 | default: |
| 199 | data->error = true; |
| 200 | goto out_unlock; |
| 201 | case WLAN_CIPHER_SUITE_AES_CMAC: |
| 202 | /* |
| 203 | * Ignore CMAC keys -- the WoWLAN firmware doesn't support them |
| 204 | * but we also shouldn't abort suspend due to that. It does have |
| 205 | * support for the IGTK key renewal, but doesn't really use the |
| 206 | * IGTK for anything. This means we could spuriously wake up or |
| 207 | * be deauthenticated, but that was considered acceptable. |
| 208 | */ |
| 209 | goto out_unlock; |
| 210 | case WLAN_CIPHER_SUITE_TKIP: |
| 211 | if (sta) { |
| 212 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; |
| 213 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; |
| 214 | |
| 215 | rx_p1ks = data->tkip->rx_uni; |
| 216 | |
| 217 | ieee80211_get_key_tx_seq(key, &seq); |
| 218 | tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); |
| 219 | tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); |
| 220 | |
| 221 | ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); |
| 222 | iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k); |
| 223 | |
| 224 | memcpy(data->tkip->mic_keys.tx, |
| 225 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], |
| 226 | IWL_MIC_KEY_SIZE); |
| 227 | |
| 228 | rx_mic_key = data->tkip->mic_keys.rx_unicast; |
| 229 | } else { |
| 230 | tkip_sc = |
| 231 | data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; |
| 232 | rx_p1ks = data->tkip->rx_multi; |
| 233 | rx_mic_key = data->tkip->mic_keys.rx_mcast; |
| 234 | } |
| 235 | |
| 236 | /* |
| 237 | * For non-QoS this relies on the fact that both the uCode and |
| 238 | * mac80211 use TID 0 (as they need to to avoid replay attacks) |
| 239 | * for checking the IV in the frames. |
| 240 | */ |
| 241 | for (i = 0; i < IWL_NUM_RSC; i++) { |
| 242 | ieee80211_get_key_rx_seq(key, i, &seq); |
| 243 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); |
| 244 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); |
| 245 | /* wrapping isn't allowed, AP must rekey */ |
| 246 | if (seq.tkip.iv32 > cur_rx_iv32) |
| 247 | cur_rx_iv32 = seq.tkip.iv32; |
| 248 | } |
| 249 | |
| 250 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, |
| 251 | cur_rx_iv32, p1k); |
| 252 | iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); |
| 253 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, |
| 254 | cur_rx_iv32 + 1, p1k); |
| 255 | iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); |
| 256 | |
| 257 | memcpy(rx_mic_key, |
| 258 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], |
| 259 | IWL_MIC_KEY_SIZE); |
| 260 | |
| 261 | data->use_tkip = true; |
| 262 | data->use_rsc_tsc = true; |
| 263 | break; |
| 264 | case WLAN_CIPHER_SUITE_CCMP: |
| 265 | if (sta) { |
| 266 | u8 *pn = seq.ccmp.pn; |
| 267 | |
| 268 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; |
| 269 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; |
| 270 | |
| 271 | ieee80211_get_key_tx_seq(key, &seq); |
| 272 | aes_tx_sc->pn = cpu_to_le64((u64)pn[5] | |
| 273 | ((u64)pn[4] << 8) | |
| 274 | ((u64)pn[3] << 16) | |
| 275 | ((u64)pn[2] << 24) | |
| 276 | ((u64)pn[1] << 32) | |
| 277 | ((u64)pn[0] << 40)); |
| 278 | } else { |
| 279 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; |
| 280 | } |
| 281 | |
| 282 | /* |
| 283 | * For non-QoS this relies on the fact that both the uCode and |
| 284 | * mac80211 use TID 0 for checking the IV in the frames. |
| 285 | */ |
| 286 | for (i = 0; i < IWL_NUM_RSC; i++) { |
| 287 | u8 *pn = seq.ccmp.pn; |
| 288 | |
| 289 | ieee80211_get_key_rx_seq(key, i, &seq); |
| 290 | aes_sc->pn = cpu_to_le64((u64)pn[5] | |
| 291 | ((u64)pn[4] << 8) | |
| 292 | ((u64)pn[3] << 16) | |
| 293 | ((u64)pn[2] << 24) | |
| 294 | ((u64)pn[1] << 32) | |
| 295 | ((u64)pn[0] << 40)); |
| 296 | } |
| 297 | data->use_rsc_tsc = true; |
| 298 | break; |
| 299 | } |
| 300 | |
| 301 | /* |
| 302 | * The D3 firmware hardcodes the key offset 0 as the key it uses |
| 303 | * to transmit packets to the AP, i.e. the PTK. |
| 304 | */ |
| 305 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
| 306 | key->hw_key_idx = 0; |
| 307 | } else { |
| 308 | data->gtk_key_idx++; |
| 309 | key->hw_key_idx = data->gtk_key_idx; |
| 310 | } |
| 311 | |
| 312 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true); |
| 313 | data->error = ret != 0; |
| 314 | out_unlock: |
| 315 | mutex_unlock(&mvm->mutex); |
| 316 | } |
| 317 | |
| 318 | static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, |
| 319 | struct cfg80211_wowlan *wowlan) |
| 320 | { |
| 321 | struct iwl_wowlan_patterns_cmd *pattern_cmd; |
| 322 | struct iwl_host_cmd cmd = { |
| 323 | .id = WOWLAN_PATTERNS, |
| 324 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, |
| 325 | .flags = CMD_SYNC, |
| 326 | }; |
| 327 | int i, err; |
| 328 | |
| 329 | if (!wowlan->n_patterns) |
| 330 | return 0; |
| 331 | |
| 332 | cmd.len[0] = sizeof(*pattern_cmd) + |
| 333 | wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern); |
| 334 | |
| 335 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); |
| 336 | if (!pattern_cmd) |
| 337 | return -ENOMEM; |
| 338 | |
| 339 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); |
| 340 | |
| 341 | for (i = 0; i < wowlan->n_patterns; i++) { |
| 342 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); |
| 343 | |
| 344 | memcpy(&pattern_cmd->patterns[i].mask, |
| 345 | wowlan->patterns[i].mask, mask_len); |
| 346 | memcpy(&pattern_cmd->patterns[i].pattern, |
| 347 | wowlan->patterns[i].pattern, |
| 348 | wowlan->patterns[i].pattern_len); |
| 349 | pattern_cmd->patterns[i].mask_size = mask_len; |
| 350 | pattern_cmd->patterns[i].pattern_size = |
| 351 | wowlan->patterns[i].pattern_len; |
| 352 | } |
| 353 | |
| 354 | cmd.data[0] = pattern_cmd; |
| 355 | err = iwl_mvm_send_cmd(mvm, &cmd); |
| 356 | kfree(pattern_cmd); |
| 357 | return err; |
| 358 | } |
| 359 | |
| 360 | static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, |
| 361 | struct ieee80211_vif *vif) |
| 362 | { |
| 363 | struct iwl_proto_offload_cmd cmd = {}; |
| 364 | #if IS_ENABLED(CONFIG_IPV6) |
| 365 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 366 | int i; |
| 367 | |
| 368 | if (mvmvif->num_target_ipv6_addrs) { |
| 369 | cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS); |
| 370 | memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN); |
| 371 | } |
| 372 | |
| 373 | BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) != |
| 374 | sizeof(mvmvif->target_ipv6_addrs[i])); |
| 375 | |
| 376 | for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++) |
| 377 | memcpy(cmd.target_ipv6_addr[i], |
| 378 | &mvmvif->target_ipv6_addrs[i], |
| 379 | sizeof(cmd.target_ipv6_addr[i])); |
| 380 | #endif |
| 381 | |
| 382 | if (vif->bss_conf.arp_addr_cnt) { |
| 383 | cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP); |
| 384 | cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0]; |
| 385 | memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN); |
| 386 | } |
| 387 | |
| 388 | if (!cmd.enabled) |
| 389 | return 0; |
| 390 | |
| 391 | return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC, |
| 392 | sizeof(cmd), &cmd); |
| 393 | } |
| 394 | |
| 395 | struct iwl_d3_iter_data { |
| 396 | struct iwl_mvm *mvm; |
| 397 | struct ieee80211_vif *vif; |
| 398 | bool error; |
| 399 | }; |
| 400 | |
| 401 | static void iwl_mvm_d3_iface_iterator(void *_data, u8 *mac, |
| 402 | struct ieee80211_vif *vif) |
| 403 | { |
| 404 | struct iwl_d3_iter_data *data = _data; |
| 405 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 406 | |
| 407 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) |
| 408 | return; |
| 409 | |
| 410 | if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) |
| 411 | return; |
| 412 | |
| 413 | if (data->vif) { |
| 414 | IWL_ERR(data->mvm, "More than one managed interface active!\n"); |
| 415 | data->error = true; |
| 416 | return; |
| 417 | } |
| 418 | |
| 419 | data->vif = vif; |
| 420 | } |
| 421 | |
| 422 | static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
| 423 | struct ieee80211_sta *ap_sta) |
| 424 | { |
| 425 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 426 | struct ieee80211_chanctx_conf *ctx; |
| 427 | u8 chains_static, chains_dynamic; |
| 428 | struct cfg80211_chan_def chandef; |
| 429 | int ret, i; |
| 430 | struct iwl_binding_cmd binding_cmd = {}; |
| 431 | struct iwl_time_quota_cmd quota_cmd = {}; |
| 432 | u32 status; |
| 433 | |
| 434 | /* add back the PHY */ |
| 435 | if (WARN_ON(!mvmvif->phy_ctxt)) |
| 436 | return -EINVAL; |
| 437 | |
| 438 | rcu_read_lock(); |
| 439 | ctx = rcu_dereference(vif->chanctx_conf); |
| 440 | if (WARN_ON(!ctx)) { |
| 441 | rcu_read_unlock(); |
| 442 | return -EINVAL; |
| 443 | } |
| 444 | chandef = ctx->def; |
| 445 | chains_static = ctx->rx_chains_static; |
| 446 | chains_dynamic = ctx->rx_chains_dynamic; |
| 447 | rcu_read_unlock(); |
| 448 | |
| 449 | ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef, |
| 450 | chains_static, chains_dynamic); |
| 451 | if (ret) |
| 452 | return ret; |
| 453 | |
| 454 | /* add back the MAC */ |
| 455 | mvmvif->uploaded = false; |
| 456 | |
| 457 | if (WARN_ON(!vif->bss_conf.assoc)) |
| 458 | return -EINVAL; |
| 459 | /* hack */ |
| 460 | vif->bss_conf.assoc = false; |
| 461 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
| 462 | vif->bss_conf.assoc = true; |
| 463 | if (ret) |
| 464 | return ret; |
| 465 | |
| 466 | /* add back binding - XXX refactor? */ |
| 467 | binding_cmd.id_and_color = |
| 468 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, |
| 469 | mvmvif->phy_ctxt->color)); |
| 470 | binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); |
| 471 | binding_cmd.phy = |
| 472 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, |
| 473 | mvmvif->phy_ctxt->color)); |
| 474 | binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, |
| 475 | mvmvif->color)); |
| 476 | for (i = 1; i < MAX_MACS_IN_BINDING; i++) |
| 477 | binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); |
| 478 | |
| 479 | status = 0; |
| 480 | ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, |
| 481 | sizeof(binding_cmd), &binding_cmd, |
| 482 | &status); |
| 483 | if (ret) { |
| 484 | IWL_ERR(mvm, "Failed to add binding: %d\n", ret); |
| 485 | return ret; |
| 486 | } |
| 487 | |
| 488 | if (status) { |
| 489 | IWL_ERR(mvm, "Binding command failed: %u\n", status); |
| 490 | return -EIO; |
| 491 | } |
| 492 | |
| 493 | ret = iwl_mvm_sta_add_to_fw(mvm, ap_sta); |
| 494 | if (ret) |
| 495 | return ret; |
| 496 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); |
| 497 | |
| 498 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); |
| 499 | if (ret) |
| 500 | return ret; |
| 501 | |
| 502 | /* and some quota */ |
| 503 | quota_cmd.quotas[0].id_and_color = |
| 504 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, |
| 505 | mvmvif->phy_ctxt->color)); |
| 506 | quota_cmd.quotas[0].quota = cpu_to_le32(100); |
| 507 | quota_cmd.quotas[0].max_duration = cpu_to_le32(1000); |
| 508 | |
| 509 | for (i = 1; i < MAX_BINDINGS; i++) |
| 510 | quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); |
| 511 | |
| 512 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC, |
| 513 | sizeof(quota_cmd), "a_cmd); |
| 514 | if (ret) |
| 515 | IWL_ERR(mvm, "Failed to send quota: %d\n", ret); |
| 516 | |
| 517 | return 0; |
| 518 | } |
| 519 | |
| 520 | int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
| 521 | { |
| 522 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| 523 | struct iwl_d3_iter_data suspend_iter_data = { |
| 524 | .mvm = mvm, |
| 525 | }; |
| 526 | struct ieee80211_vif *vif; |
| 527 | struct iwl_mvm_vif *mvmvif; |
| 528 | struct ieee80211_sta *ap_sta; |
| 529 | struct iwl_mvm_sta *mvm_ap_sta; |
| 530 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
| 531 | struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; |
| 532 | struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; |
| 533 | struct iwl_d3_manager_config d3_cfg_cmd = {}; |
| 534 | struct wowlan_key_data key_data = { |
| 535 | .use_rsc_tsc = false, |
| 536 | .tkip = &tkip_cmd, |
| 537 | .use_tkip = false, |
| 538 | }; |
| 539 | int ret, i; |
| 540 | u16 seq; |
| 541 | u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT; |
| 542 | |
| 543 | if (WARN_ON(!wowlan)) |
| 544 | return -EINVAL; |
| 545 | |
| 546 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); |
| 547 | if (!key_data.rsc_tsc) |
| 548 | return -ENOMEM; |
| 549 | |
| 550 | mutex_lock(&mvm->mutex); |
| 551 | |
| 552 | old_aux_sta_id = mvm->aux_sta.sta_id; |
| 553 | |
| 554 | /* see if there's only a single BSS vif and it's associated */ |
| 555 | ieee80211_iterate_active_interfaces_atomic( |
| 556 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| 557 | iwl_mvm_d3_iface_iterator, &suspend_iter_data); |
| 558 | |
| 559 | if (suspend_iter_data.error || !suspend_iter_data.vif) { |
| 560 | ret = 1; |
| 561 | goto out_noreset; |
| 562 | } |
| 563 | |
| 564 | vif = suspend_iter_data.vif; |
| 565 | mvmvif = iwl_mvm_vif_from_mac80211(vif); |
| 566 | |
| 567 | ap_sta = rcu_dereference_protected( |
| 568 | mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], |
| 569 | lockdep_is_held(&mvm->mutex)); |
| 570 | if (IS_ERR_OR_NULL(ap_sta)) { |
| 571 | ret = -EINVAL; |
| 572 | goto out_noreset; |
| 573 | } |
| 574 | |
| 575 | mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv; |
| 576 | |
| 577 | /* |
| 578 | * The D3 firmware still hardcodes the AP station ID for the |
| 579 | * BSS we're associated with as 0. Store the real STA ID here |
| 580 | * and assign 0. When we leave this function, we'll restore |
| 581 | * the original value for the resume code. |
| 582 | */ |
| 583 | old_ap_sta_id = mvm_ap_sta->sta_id; |
| 584 | mvm_ap_sta->sta_id = 0; |
| 585 | mvmvif->ap_sta_id = 0; |
| 586 | |
| 587 | /* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */ |
| 588 | |
| 589 | wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported; |
| 590 | |
| 591 | /* |
| 592 | * We know the last used seqno, and the uCode expects to know that |
| 593 | * one, it will increment before TX. |
| 594 | */ |
| 595 | seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ; |
| 596 | wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq); |
| 597 | |
| 598 | /* |
| 599 | * For QoS counters, we store the one to use next, so subtract 0x10 |
| 600 | * since the uCode will add 0x10 *before* using the value while we |
| 601 | * increment after using the value (i.e. store the next value to use). |
| 602 | */ |
| 603 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
| 604 | seq = mvm_ap_sta->tid_data[i].seq_number; |
| 605 | seq -= 0x10; |
| 606 | wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq); |
| 607 | } |
| 608 | |
| 609 | if (wowlan->disconnect) |
| 610 | wowlan_config_cmd.wakeup_filter |= |
| 611 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | |
| 612 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); |
| 613 | if (wowlan->magic_pkt) |
| 614 | wowlan_config_cmd.wakeup_filter |= |
| 615 | cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); |
| 616 | if (wowlan->gtk_rekey_failure) |
| 617 | wowlan_config_cmd.wakeup_filter |= |
| 618 | cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); |
| 619 | if (wowlan->eap_identity_req) |
| 620 | wowlan_config_cmd.wakeup_filter |= |
| 621 | cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); |
| 622 | if (wowlan->four_way_handshake) |
| 623 | wowlan_config_cmd.wakeup_filter |= |
| 624 | cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); |
| 625 | if (wowlan->n_patterns) |
| 626 | wowlan_config_cmd.wakeup_filter |= |
| 627 | cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); |
| 628 | |
| 629 | if (wowlan->rfkill_release) |
| 630 | d3_cfg_cmd.wakeup_flags |= |
| 631 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
| 632 | |
| 633 | iwl_mvm_cancel_scan(mvm); |
| 634 | |
| 635 | iwl_trans_stop_device(mvm->trans); |
| 636 | |
| 637 | /* |
| 638 | * Set the HW restart bit -- this is mostly true as we're |
| 639 | * going to load new firmware and reprogram that, though |
| 640 | * the reprogramming is going to be manual to avoid adding |
| 641 | * all the MACs that aren't support. |
| 642 | * We don't have to clear up everything though because the |
| 643 | * reprogramming is manual. When we resume, we'll actually |
| 644 | * go through a proper restart sequence again to switch |
| 645 | * back to the runtime firmware image. |
| 646 | */ |
| 647 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| 648 | |
| 649 | /* We reprogram keys and shouldn't allocate new key indices */ |
| 650 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); |
| 651 | |
| 652 | /* |
| 653 | * The D3 firmware still hardcodes the AP station ID for the |
| 654 | * BSS we're associated with as 0. As a result, we have to move |
| 655 | * the auxiliary station to ID 1 so the ID 0 remains free for |
| 656 | * the AP station for later. |
| 657 | * We set the sta_id to 1 here, and reset it to its previous |
| 658 | * value (that we stored above) later. |
| 659 | */ |
| 660 | mvm->aux_sta.sta_id = 1; |
| 661 | |
| 662 | ret = iwl_mvm_load_d3_fw(mvm); |
| 663 | if (ret) |
| 664 | goto out; |
| 665 | |
| 666 | ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); |
| 667 | if (ret) |
| 668 | goto out; |
| 669 | |
| 670 | if (!iwlwifi_mod_params.sw_crypto) { |
| 671 | /* |
| 672 | * This needs to be unlocked due to lock ordering |
| 673 | * constraints. Since we're in the suspend path |
| 674 | * that isn't really a problem though. |
| 675 | */ |
| 676 | mutex_unlock(&mvm->mutex); |
| 677 | ieee80211_iter_keys(mvm->hw, vif, |
| 678 | iwl_mvm_wowlan_program_keys, |
| 679 | &key_data); |
| 680 | mutex_lock(&mvm->mutex); |
| 681 | if (key_data.error) { |
| 682 | ret = -EIO; |
| 683 | goto out; |
| 684 | } |
| 685 | |
| 686 | if (key_data.use_rsc_tsc) { |
| 687 | struct iwl_host_cmd rsc_tsc_cmd = { |
| 688 | .id = WOWLAN_TSC_RSC_PARAM, |
| 689 | .flags = CMD_SYNC, |
| 690 | .data[0] = key_data.rsc_tsc, |
| 691 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, |
| 692 | .len[0] = sizeof(*key_data.rsc_tsc), |
| 693 | }; |
| 694 | |
| 695 | ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd); |
| 696 | if (ret) |
| 697 | goto out; |
| 698 | } |
| 699 | |
| 700 | if (key_data.use_tkip) { |
| 701 | ret = iwl_mvm_send_cmd_pdu(mvm, |
| 702 | WOWLAN_TKIP_PARAM, |
| 703 | CMD_SYNC, sizeof(tkip_cmd), |
| 704 | &tkip_cmd); |
| 705 | if (ret) |
| 706 | goto out; |
| 707 | } |
| 708 | |
| 709 | if (mvmvif->rekey_data.valid) { |
| 710 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); |
| 711 | memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, |
| 712 | NL80211_KCK_LEN); |
| 713 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); |
| 714 | memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, |
| 715 | NL80211_KEK_LEN); |
| 716 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); |
| 717 | kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; |
| 718 | |
| 719 | ret = iwl_mvm_send_cmd_pdu(mvm, |
| 720 | WOWLAN_KEK_KCK_MATERIAL, |
| 721 | CMD_SYNC, |
| 722 | sizeof(kek_kck_cmd), |
| 723 | &kek_kck_cmd); |
| 724 | if (ret) |
| 725 | goto out; |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, |
| 730 | CMD_SYNC, sizeof(wowlan_config_cmd), |
| 731 | &wowlan_config_cmd); |
| 732 | if (ret) |
| 733 | goto out; |
| 734 | |
| 735 | ret = iwl_mvm_send_patterns(mvm, wowlan); |
| 736 | if (ret) |
| 737 | goto out; |
| 738 | |
| 739 | ret = iwl_mvm_send_proto_offload(mvm, vif); |
| 740 | if (ret) |
| 741 | goto out; |
| 742 | |
| 743 | /* must be last -- this switches firmware state */ |
| 744 | ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC, |
| 745 | sizeof(d3_cfg_cmd), &d3_cfg_cmd); |
| 746 | if (ret) |
| 747 | goto out; |
| 748 | |
| 749 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| 750 | |
| 751 | iwl_trans_d3_suspend(mvm->trans); |
| 752 | out: |
| 753 | mvm->aux_sta.sta_id = old_aux_sta_id; |
| 754 | mvm_ap_sta->sta_id = old_ap_sta_id; |
| 755 | mvmvif->ap_sta_id = old_ap_sta_id; |
| 756 | out_noreset: |
| 757 | kfree(key_data.rsc_tsc); |
| 758 | if (ret < 0) |
| 759 | ieee80211_restart_hw(mvm->hw); |
| 760 | |
| 761 | mutex_unlock(&mvm->mutex); |
| 762 | |
| 763 | return ret; |
| 764 | } |
| 765 | |
Johannes Berg | 9b26b50 | 2013-01-22 13:02:09 +0100 | [diff] [blame^] | 766 | static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, |
| 767 | struct ieee80211_vif *vif) |
| 768 | { |
| 769 | u32 base = mvm->error_event_table; |
| 770 | struct error_table_start { |
| 771 | /* cf. struct iwl_error_event_table */ |
| 772 | u32 valid; |
| 773 | u32 error_id; |
| 774 | } err_info; |
| 775 | struct cfg80211_wowlan_wakeup wakeup = { |
| 776 | .pattern_idx = -1, |
| 777 | }; |
| 778 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; |
| 779 | struct iwl_host_cmd cmd = { |
| 780 | .id = WOWLAN_GET_STATUSES, |
| 781 | .flags = CMD_SYNC | CMD_WANT_SKB, |
| 782 | }; |
| 783 | struct iwl_wowlan_status *status; |
| 784 | u32 reasons; |
| 785 | int ret, len; |
| 786 | bool pkt8023 = false; |
| 787 | struct sk_buff *pkt = NULL; |
| 788 | |
| 789 | iwl_trans_read_mem_bytes(mvm->trans, base, |
| 790 | &err_info, sizeof(err_info)); |
| 791 | |
| 792 | if (err_info.valid) { |
| 793 | IWL_INFO(mvm, "error table is valid (%d)\n", |
| 794 | err_info.valid); |
| 795 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { |
| 796 | wakeup.rfkill_release = true; |
| 797 | ieee80211_report_wowlan_wakeup(vif, &wakeup, |
| 798 | GFP_KERNEL); |
| 799 | } |
| 800 | return; |
| 801 | } |
| 802 | |
| 803 | /* only for tracing for now */ |
| 804 | ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, CMD_SYNC, 0, NULL); |
| 805 | if (ret) |
| 806 | IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); |
| 807 | |
| 808 | ret = iwl_mvm_send_cmd(mvm, &cmd); |
| 809 | if (ret) { |
| 810 | IWL_ERR(mvm, "failed to query status (%d)\n", ret); |
| 811 | return; |
| 812 | } |
| 813 | |
| 814 | /* RF-kill already asserted again... */ |
| 815 | if (!cmd.resp_pkt) |
| 816 | return; |
| 817 | |
| 818 | len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; |
| 819 | if (len - sizeof(struct iwl_cmd_header) < sizeof(*status)) { |
| 820 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); |
| 821 | goto out; |
| 822 | } |
| 823 | |
| 824 | status = (void *)cmd.resp_pkt->data; |
| 825 | |
| 826 | if (len - sizeof(struct iwl_cmd_header) != |
| 827 | sizeof(*status) + le32_to_cpu(status->wake_packet_bufsize)) { |
| 828 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); |
| 829 | goto out; |
| 830 | } |
| 831 | |
| 832 | reasons = le32_to_cpu(status->wakeup_reasons); |
| 833 | |
| 834 | if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { |
| 835 | wakeup_report = NULL; |
| 836 | goto report; |
| 837 | } |
| 838 | |
| 839 | if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) { |
| 840 | wakeup.magic_pkt = true; |
| 841 | pkt8023 = true; |
| 842 | } |
| 843 | |
| 844 | if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) { |
| 845 | wakeup.pattern_idx = |
| 846 | le16_to_cpu(status->pattern_number); |
| 847 | pkt8023 = true; |
| 848 | } |
| 849 | |
| 850 | if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | |
| 851 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) |
| 852 | wakeup.disconnect = true; |
| 853 | |
| 854 | if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) { |
| 855 | wakeup.gtk_rekey_failure = true; |
| 856 | pkt8023 = true; |
| 857 | } |
| 858 | |
| 859 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) { |
| 860 | wakeup.rfkill_release = true; |
| 861 | pkt8023 = true; |
| 862 | } |
| 863 | |
| 864 | if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) { |
| 865 | wakeup.eap_identity_req = true; |
| 866 | pkt8023 = true; |
| 867 | } |
| 868 | |
| 869 | if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) { |
| 870 | wakeup.four_way_handshake = true; |
| 871 | pkt8023 = true; |
| 872 | } |
| 873 | |
| 874 | if (status->wake_packet_bufsize) { |
| 875 | u32 pktsize = le32_to_cpu(status->wake_packet_bufsize); |
| 876 | u32 pktlen = le32_to_cpu(status->wake_packet_length); |
| 877 | |
| 878 | if (pkt8023) { |
| 879 | pkt = alloc_skb(pktsize, GFP_KERNEL); |
| 880 | if (!pkt) |
| 881 | goto report; |
| 882 | memcpy(skb_put(pkt, pktsize), status->wake_packet, |
| 883 | pktsize); |
| 884 | if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) |
| 885 | goto report; |
| 886 | wakeup.packet = pkt->data; |
| 887 | wakeup.packet_present_len = pkt->len; |
| 888 | wakeup.packet_len = pkt->len - (pktlen - pktsize); |
| 889 | wakeup.packet_80211 = false; |
| 890 | } else { |
| 891 | wakeup.packet = status->wake_packet; |
| 892 | wakeup.packet_present_len = pktsize; |
| 893 | wakeup.packet_len = pktlen; |
| 894 | wakeup.packet_80211 = true; |
| 895 | } |
| 896 | } |
| 897 | |
| 898 | report: |
| 899 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); |
| 900 | kfree_skb(pkt); |
| 901 | |
| 902 | out: |
| 903 | iwl_free_resp(&cmd); |
| 904 | } |
| 905 | |
Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 906 | int iwl_mvm_resume(struct ieee80211_hw *hw) |
| 907 | { |
| 908 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| 909 | struct iwl_d3_iter_data resume_iter_data = { |
| 910 | .mvm = mvm, |
| 911 | }; |
| 912 | struct ieee80211_vif *vif = NULL; |
Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 913 | int ret; |
| 914 | enum iwl_d3_status d3_status; |
Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 915 | |
| 916 | mutex_lock(&mvm->mutex); |
| 917 | |
| 918 | /* get the BSS vif pointer again */ |
| 919 | ieee80211_iterate_active_interfaces_atomic( |
| 920 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, |
| 921 | iwl_mvm_d3_iface_iterator, &resume_iter_data); |
| 922 | |
| 923 | if (WARN_ON(resume_iter_data.error || !resume_iter_data.vif)) |
| 924 | goto out_unlock; |
| 925 | |
| 926 | vif = resume_iter_data.vif; |
| 927 | |
| 928 | ret = iwl_trans_d3_resume(mvm->trans, &d3_status); |
| 929 | if (ret) |
| 930 | goto out_unlock; |
| 931 | |
| 932 | if (d3_status != IWL_D3_STATUS_ALIVE) { |
| 933 | IWL_INFO(mvm, "Device was reset during suspend\n"); |
| 934 | goto out_unlock; |
| 935 | } |
| 936 | |
Johannes Berg | 9b26b50 | 2013-01-22 13:02:09 +0100 | [diff] [blame^] | 937 | iwl_mvm_query_wakeup_reasons(mvm, vif); |
Johannes Berg | 8ca151b | 2013-01-24 14:25:36 +0100 | [diff] [blame] | 938 | |
| 939 | out_unlock: |
| 940 | mutex_unlock(&mvm->mutex); |
| 941 | |
| 942 | if (vif) |
| 943 | ieee80211_resume_disconnect(vif); |
| 944 | |
| 945 | /* return 1 to reconfigure the device */ |
| 946 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
| 947 | return 1; |
| 948 | } |
| 949 | |
| 950 | void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
| 951 | { |
| 952 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
| 953 | |
| 954 | device_set_wakeup_enable(mvm->trans->dev, enabled); |
| 955 | } |