drivers/net/wireless/iwlwifi/mvm/rx.c

   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  *
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  11  * it under the terms of version 2 of the GNU General Public License as
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  14  * This program is distributed in the hope that it will be useful, but
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  20  * along with this program; if not, write to the Free Software
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  28  *  Intel Linux Wireless <ilw@linux.intel.com>
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  32  *
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  44  *    the documentation and/or other materials provided with the
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  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,
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  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 #include "iwl-trans.h"
  63 #include "mvm.h"
  64 #include "fw-api.h"
  65
  66 /*
  67  * iwl_mvm_rx_rx_phy_cmd - REPLY_RX_PHY_CMD handler
  68  *
  69  * Copies the phy information in mvm->last_phy_info, it will be used when the
  70  * actual data will come from the fw in the next packet.
  71  */
  72 int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
  73                           struct iwl_device_cmd *cmd)
  74 {
  75         struct iwl_rx_packet *pkt = rxb_addr(rxb);
  76
  77         memcpy(&mvm->last_phy_info, pkt->data, sizeof(mvm->last_phy_info));
  78         mvm->ampdu_ref++;
  79
  80 #ifdef CONFIG_IWLWIFI_DEBUGFS
  81         if (mvm->last_phy_info.phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) {
  82                 spin_lock(&mvm->drv_stats_lock);
  83                 mvm->drv_rx_stats.ampdu_count++;
  84                 spin_unlock(&mvm->drv_stats_lock);
  85         }
  86 #endif
  87
  88         return 0;
  89 }
  90
  91 /*
  92  * iwl_mvm_pass_packet_to_mac80211 - builds the packet for mac80211
  93  *
  94  * Adds the rxb to a new skb and give it to mac80211
  95  */
  96 static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm,
  97                                             struct ieee80211_hdr *hdr, u16 len,
  98                                             u32 ampdu_status,
  99                                             struct iwl_rx_cmd_buffer *rxb,
 100                                             struct ieee80211_rx_status *stats)
 101 {
 102         struct sk_buff *skb;
 103         unsigned int hdrlen, fraglen;
 104
 105         /* Dont use dev_alloc_skb(), we'll have enough headroom once
 106          * ieee80211_hdr pulled.
 107          */
 108         skb = alloc_skb(128, GFP_ATOMIC);
 109         if (!skb) {
 110                 IWL_ERR(mvm, "alloc_skb failed\n");
 111                 return;
 112         }
 113         /* If frame is small enough to fit in skb->head, pull it completely.
 114          * If not, only pull ieee80211_hdr so that splice() or TCP coalesce
 115          * are more efficient.
 116          */
 117         hdrlen = (len <= skb_tailroom(skb)) ? len : sizeof(*hdr);
 118
 119         memcpy(skb_put(skb, hdrlen), hdr, hdrlen);
 120         fraglen = len - hdrlen;
 121
 122         if (fraglen) {
 123                 int offset = (void *)hdr + hdrlen -
 124                              rxb_addr(rxb) + rxb_offset(rxb);
 125
 126                 skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset,
 127                                 fraglen, rxb->truesize);
 128         }
 129
 130         memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats));
 131
 132         ieee80211_rx(mvm->hw, skb);
 133 }
 134
 135 static void iwl_mvm_calc_rssi(struct iwl_mvm *mvm,
 136                               struct iwl_rx_phy_info *phy_info,
 137                               struct ieee80211_rx_status *rx_status)
 138 {
 139         int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm;
 140         u32 agc_a, agc_b;
 141         u32 val;
 142
 143         val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]);
 144         agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS;
 145         agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS;
 146
 147         val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]);
 148         rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS;
 149         rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS;
 150
 151         /*
 152          * dBm = rssi dB - agc dB - constant.
 153          * Higher AGC (higher radio gain) means lower signal.
 154          */
 155         rssi_a_dbm = rssi_a - IWL_RSSI_OFFSET - agc_a;
 156         rssi_b_dbm = rssi_b - IWL_RSSI_OFFSET - agc_b;
 157         max_rssi_dbm = max_t(int, rssi_a_dbm, rssi_b_dbm);
 158
 159         IWL_DEBUG_STATS(mvm, "Rssi In A %d B %d Max %d AGCA %d AGCB %d\n",
 160                         rssi_a_dbm, rssi_b_dbm, max_rssi_dbm, agc_a, agc_b);
 161
 162         rx_status->signal = max_rssi_dbm;
 163         rx_status->chains = (le16_to_cpu(phy_info->phy_flags) &
 164                                 RX_RES_PHY_FLAGS_ANTENNA)
 165                                         >> RX_RES_PHY_FLAGS_ANTENNA_POS;
 166         rx_status->chain_signal[0] = rssi_a_dbm;
 167         rx_status->chain_signal[1] = rssi_b_dbm;
 168 }
 169
 170 /*
 171  * iwl_mvm_get_signal_strength - use new rx PHY INFO API
 172  * values are reported by the fw as positive values - need to negate
 173  * to obtain their dBM.  Account for missing antennas by replacing 0
 174  * values by -256dBm: practically 0 power and a non-feasible 8 bit value.
 175  */
 176 static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm,
 177                                         struct iwl_rx_phy_info *phy_info,
 178                                         struct ieee80211_rx_status *rx_status)
 179 {
 180         int energy_a, energy_b, energy_c, max_energy;
 181         u32 val;
 182
 183         val =
 184             le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_ENERGY_ANT_ABC_IDX]);
 185         energy_a = (val & IWL_RX_INFO_ENERGY_ANT_A_MSK) >>
 186                                                 IWL_RX_INFO_ENERGY_ANT_A_POS;
 187         energy_a = energy_a ? -energy_a : -256;
 188         energy_b = (val & IWL_RX_INFO_ENERGY_ANT_B_MSK) >>
 189                                                 IWL_RX_INFO_ENERGY_ANT_B_POS;
 190         energy_b = energy_b ? -energy_b : -256;
 191         energy_c = (val & IWL_RX_INFO_ENERGY_ANT_C_MSK) >>
 192                                                 IWL_RX_INFO_ENERGY_ANT_C_POS;
 193         energy_c = energy_c ? -energy_c : -256;
 194         max_energy = max(energy_a, energy_b);
 195         max_energy = max(max_energy, energy_c);
 196
 197         IWL_DEBUG_STATS(mvm, "energy In A %d B %d C %d , and max %d\n",
 198                         energy_a, energy_b, energy_c, max_energy);
 199
 200         rx_status->signal = max_energy;
 201         rx_status->chains = (le16_to_cpu(phy_info->phy_flags) &
 202                                 RX_RES_PHY_FLAGS_ANTENNA)
 203                                         >> RX_RES_PHY_FLAGS_ANTENNA_POS;
 204         rx_status->chain_signal[0] = energy_a;
 205         rx_status->chain_signal[1] = energy_b;
 206         rx_status->chain_signal[2] = energy_c;
 207 }
 208
 209 /*
 210  * iwl_mvm_set_mac80211_rx_flag - translate fw status to mac80211 format
 211  * @mvm: the mvm object
 212  * @hdr: 80211 header
 213  * @stats: status in mac80211's format
 214  * @rx_pkt_status: status coming from fw
 215  *
 216  * returns non 0 value if the packet should be dropped
 217  */
 218 static u32 iwl_mvm_set_mac80211_rx_flag(struct iwl_mvm *mvm,
 219                                         struct ieee80211_hdr *hdr,
 220                                         struct ieee80211_rx_status *stats,
 221                                         u32 rx_pkt_status)
 222 {
 223         if (!ieee80211_has_protected(hdr->frame_control) ||
 224             (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==
 225                              RX_MPDU_RES_STATUS_SEC_NO_ENC)
 226                 return 0;
 227
 228         /* packet was encrypted with unknown alg */
 229         if ((rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) ==
 230                                         RX_MPDU_RES_STATUS_SEC_ENC_ERR)
 231                 return 0;
 232
 233         switch (rx_pkt_status & RX_MPDU_RES_STATUS_SEC_ENC_MSK) {
 234         case RX_MPDU_RES_STATUS_SEC_CCM_ENC:
 235                 /* alg is CCM: check MIC only */
 236                 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK))
 237                         return -1;
 238
 239                 stats->flag |= RX_FLAG_DECRYPTED;
 240                 IWL_DEBUG_WEP(mvm, "hw decrypted CCMP successfully\n");
 241                 return 0;
 242
 243         case RX_MPDU_RES_STATUS_SEC_TKIP_ENC:
 244                 /* Don't drop the frame and decrypt it in SW */
 245                 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_TTAK_OK))
 246                         return 0;
 247                 /* fall through if TTAK OK */
 248
 249         case RX_MPDU_RES_STATUS_SEC_WEP_ENC:
 250                 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_ICV_OK))
 251                         return -1;
 252
 253                 stats->flag |= RX_FLAG_DECRYPTED;
 254                 return 0;
 255
 256         case RX_MPDU_RES_STATUS_SEC_EXT_ENC:
 257                 if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK))
 258                         return -1;
 259                 stats->flag |= RX_FLAG_DECRYPTED;
 260                 return 0;
 261
 262         default:
 263                 IWL_ERR(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status);
 264         }
 265
 266         return 0;
 267 }
 268
 269 /*
 270  * iwl_mvm_rx_rx_mpdu - REPLY_RX_MPDU_CMD handler
 271  *
 272  * Handles the actual data of the Rx packet from the fw
 273  */
 274 int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 275                        struct iwl_device_cmd *cmd)
 276 {
 277         struct ieee80211_hdr *hdr;
 278         struct ieee80211_rx_status rx_status = {};
 279         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 280         struct iwl_rx_phy_info *phy_info;
 281         struct iwl_rx_mpdu_res_start *rx_res;
 282         u32 len;
 283         u32 ampdu_status;
 284         u32 rate_n_flags;
 285         u32 rx_pkt_status;
 286
 287         phy_info = &mvm->last_phy_info;
 288         rx_res = (struct iwl_rx_mpdu_res_start *)pkt->data;
 289         hdr = (struct ieee80211_hdr *)(pkt->data + sizeof(*rx_res));
 290         len = le16_to_cpu(rx_res->byte_count);
 291         rx_pkt_status = le32_to_cpup((__le32 *)
 292                 (pkt->data + sizeof(*rx_res) + len));
 293
 294         memset(&rx_status, 0, sizeof(rx_status));
 295
 296         /*
 297          * drop the packet if it has failed being decrypted by HW
 298          */
 299         if (iwl_mvm_set_mac80211_rx_flag(mvm, hdr, &rx_status, rx_pkt_status)) {
 300                 IWL_DEBUG_DROP(mvm, "Bad decryption results 0x%08x\n",
 301                                rx_pkt_status);
 302                 return 0;
 303         }
 304
 305         if ((unlikely(phy_info->cfg_phy_cnt > 20))) {
 306                 IWL_DEBUG_DROP(mvm, "dsp size out of range [0,20]: %d\n",
 307                                phy_info->cfg_phy_cnt);
 308                 return 0;
 309         }
 310
 311         /*
 312          * Keep packets with CRC errors (and with overrun) for monitor mode
 313          * (otherwise the firmware discards them) but mark them as bad.
 314          */
 315         if (!(rx_pkt_status & RX_MPDU_RES_STATUS_CRC_OK) ||
 316             !(rx_pkt_status & RX_MPDU_RES_STATUS_OVERRUN_OK)) {
 317                 IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status);
 318                 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 319         }
 320
 321         /* This will be used in several places later */
 322         rate_n_flags = le32_to_cpu(phy_info->rate_n_flags);
 323
 324         /* rx_status carries information about the packet to mac80211 */
 325         rx_status.mactime = le64_to_cpu(phy_info->timestamp);
 326         rx_status.device_timestamp = le32_to_cpu(phy_info->system_timestamp);
 327         rx_status.band =
 328                 (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_BAND_24)) ?
 329                                 IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ;
 330         rx_status.freq =
 331                 ieee80211_channel_to_frequency(le16_to_cpu(phy_info->channel),
 332                                                rx_status.band);
 333         /*
 334          * TSF as indicated by the fw is at INA time, but mac80211 expects the
 335          * TSF at the beginning of the MPDU.
 336          */
 337         /*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/
 338
 339         if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_RX_ENERGY_API)
 340                 iwl_mvm_get_signal_strength(mvm, phy_info, &rx_status);
 341         else
 342                 iwl_mvm_calc_rssi(mvm, phy_info, &rx_status);
 343
 344         IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status.signal,
 345                               (unsigned long long)rx_status.mactime);
 346
 347         /* set the preamble flag if appropriate */
 348         if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_SHORT_PREAMBLE))
 349                 rx_status.flag |= RX_FLAG_SHORTPRE;
 350
 351         if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) {
 352                 /*
 353                  * We know which subframes of an A-MPDU belong
 354                  * together since we get a single PHY response
 355                  * from the firmware for all of them
 356                  */
 357                 rx_status.flag |= RX_FLAG_AMPDU_DETAILS;
 358                 rx_status.ampdu_reference = mvm->ampdu_ref;
 359         }
 360
 361         /* Set up the HT phy flags */
 362         switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
 363         case RATE_MCS_CHAN_WIDTH_20:
 364                 break;
 365         case RATE_MCS_CHAN_WIDTH_40:
 366                 rx_status.flag |= RX_FLAG_40MHZ;
 367                 break;
 368         case RATE_MCS_CHAN_WIDTH_80:
 369                 rx_status.vht_flag |= RX_VHT_FLAG_80MHZ;
 370                 break;
 371         case RATE_MCS_CHAN_WIDTH_160:
 372                 rx_status.vht_flag |= RX_VHT_FLAG_160MHZ;
 373                 break;
 374         }
 375         if (rate_n_flags & RATE_MCS_SGI_MSK)
 376                 rx_status.flag |= RX_FLAG_SHORT_GI;
 377         if (rate_n_flags & RATE_HT_MCS_GF_MSK)
 378                 rx_status.flag |= RX_FLAG_HT_GF;
 379         if (rate_n_flags & RATE_MCS_LDPC_MSK)
 380                 rx_status.flag |= RX_FLAG_LDPC;
 381         if (rate_n_flags & RATE_MCS_HT_MSK) {
 382                 u8 stbc = (rate_n_flags & RATE_MCS_HT_STBC_MSK) >>
 383                                 RATE_MCS_STBC_POS;
 384                 rx_status.flag |= RX_FLAG_HT;
 385                 rx_status.rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
 386                 rx_status.flag |= stbc << RX_FLAG_STBC_SHIFT;
 387         } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
 388                 u8 stbc = (rate_n_flags & RATE_MCS_VHT_STBC_MSK) >>
 389                                 RATE_MCS_STBC_POS;
 390                 rx_status.vht_nss =
 391                         ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
 392                                                 RATE_VHT_MCS_NSS_POS) + 1;
 393                 rx_status.rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
 394                 rx_status.flag |= RX_FLAG_VHT;
 395                 rx_status.flag |= stbc << RX_FLAG_STBC_SHIFT;
 396         } else {
 397                 rx_status.rate_idx =
 398                         iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
 399                                                             rx_status.band);
 400         }
 401
 402 #ifdef CONFIG_IWLWIFI_DEBUGFS
 403         iwl_mvm_update_frame_stats(mvm, &mvm->drv_rx_stats, rate_n_flags,
 404                                    rx_status.flag & RX_FLAG_AMPDU_DETAILS);
 405 #endif
 406         iwl_mvm_pass_packet_to_mac80211(mvm, hdr, len, ampdu_status,
 407                                         rxb, &rx_status);
 408         return 0;
 409 }
 410
 411 static void iwl_mvm_update_rx_statistics(struct iwl_mvm *mvm,
 412                                          struct iwl_notif_statistics *stats)
 413 {
 414         /*
 415          * NOTE FW aggregates the statistics - BUT the statistics are cleared
 416          * when the driver issues REPLY_STATISTICS_CMD 0x9c with CLEAR_STATS
 417          * bit set.
 418          */
 419         lockdep_assert_held(&mvm->mutex);
 420         memcpy(&mvm->rx_stats, &stats->rx, sizeof(struct mvm_statistics_rx));
 421 }
 422
 423 struct iwl_mvm_stat_data {
 424         struct iwl_notif_statistics *stats;
 425         struct iwl_mvm *mvm;
 426 };
 427
 428 static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
 429                                   struct ieee80211_vif *vif)
 430 {
 431         struct iwl_mvm_stat_data *data = _data;
 432         struct iwl_notif_statistics *stats = data->stats;
 433         struct iwl_mvm *mvm = data->mvm;
 434         int sig = -stats->general.beacon_filter_average_energy;
 435         int last_event;
 436         int thold = vif->bss_conf.cqm_rssi_thold;
 437         int hyst = vif->bss_conf.cqm_rssi_hyst;
 438         u16 id = le32_to_cpu(stats->rx.general.mac_id);
 439         struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 440
 441         if (mvmvif->id != id)
 442                 return;
 443
 444         if (vif->type != NL80211_IFTYPE_STATION)
 445                 return;
 446
 447         mvmvif->bf_data.ave_beacon_signal = sig;
 448
 449         /* BT Coex */
 450         if (mvmvif->bf_data.bt_coex_min_thold !=
 451             mvmvif->bf_data.bt_coex_max_thold) {
 452                 last_event = mvmvif->bf_data.last_bt_coex_event;
 453                 if (sig > mvmvif->bf_data.bt_coex_max_thold &&
 454                     (last_event <= mvmvif->bf_data.bt_coex_min_thold ||
 455                      last_event == 0)) {
 456                         mvmvif->bf_data.last_bt_coex_event = sig;
 457                         IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n",
 458                                      sig);
 459                         iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH);
 460                 } else if (sig < mvmvif->bf_data.bt_coex_min_thold &&
 461                            (last_event >= mvmvif->bf_data.bt_coex_max_thold ||
 462                             last_event == 0)) {
 463                         mvmvif->bf_data.last_bt_coex_event = sig;
 464                         IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n",
 465                                      sig);
 466                         iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW);
 467                 }
 468         }
 469
 470         if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
 471                 return;
 472
 473         /* CQM Notification */
 474         last_event = mvmvif->bf_data.last_cqm_event;
 475         if (thold && sig < thold && (last_event == 0 ||
 476                                      sig < last_event - hyst)) {
 477                 mvmvif->bf_data.last_cqm_event = sig;
 478                 IWL_DEBUG_RX(mvm, "cqm_iterator cqm low %d\n",
 479                              sig);
 480                 ieee80211_cqm_rssi_notify(
 481                         vif,
 482                         NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
 483                         GFP_KERNEL);
 484         } else if (sig > thold &&
 485                    (last_event == 0 || sig > last_event + hyst)) {
 486                 mvmvif->bf_data.last_cqm_event = sig;
 487                 IWL_DEBUG_RX(mvm, "cqm_iterator cqm high %d\n",
 488                              sig);
 489                 ieee80211_cqm_rssi_notify(
 490                         vif,
 491                         NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
 492                         GFP_KERNEL);
 493         }
 494 }
 495
 496 /*
 497  * iwl_mvm_rx_statistics - STATISTICS_NOTIFICATION handler
 498  *
 499  * TODO: This handler is implemented partially.
 500  */
 501 int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
 502                           struct iwl_rx_cmd_buffer *rxb,
 503                           struct iwl_device_cmd *cmd)
 504 {
 505         struct iwl_rx_packet *pkt = rxb_addr(rxb);
 506         struct iwl_notif_statistics *stats = (void *)&pkt->data;
 507         struct mvm_statistics_general_common *common = &stats->general.common;
 508         struct iwl_mvm_stat_data data = {
 509                 .stats = stats,
 510                 .mvm = mvm,
 511         };
 512
 513         if (mvm->temperature != le32_to_cpu(common->temperature)) {
 514                 mvm->temperature = le32_to_cpu(common->temperature);
 515                 iwl_mvm_tt_handler(mvm);
 516         }
 517         iwl_mvm_update_rx_statistics(mvm, stats);
 518
 519         ieee80211_iterate_active_interfaces(mvm->hw,
 520                                             IEEE80211_IFACE_ITER_NORMAL,
 521                                             iwl_mvm_stat_iterator,
 522                                             &data);
 523         return 0;
 524 }