text: /******************************************************************************
   *
   * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
   * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
   * Copyright(c) 2018 Intel Corporation
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   *
   *  * Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   *  * Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in
   *    the documentation and/or other materials provided with the
   *    distribution.
   *  * Neither the name Intel Corporation nor the names of its
   *    contributors may be used to endorse or promote products derived
   *    from this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *****************************************************************************/
  #include "src/connectivity/wlan/drivers/third_party/intel/iwlwifi/iwl-trans.h"
  #include "src/connectivity/wlan/drivers/third_party/intel/iwlwifi/mvm/fw-api.h"
  #include "src/connectivity/wlan/drivers/third_party/intel/iwlwifi/mvm/mvm.h"
  
  #if 0   // NEEDS_PORTING
  static inline int iwl_mvm_check_pn(struct iwl_mvm* mvm, struct sk_buff* skb, int queue,
                                     struct ieee80211_sta* sta) {
      struct iwl_mvm_sta* mvmsta;
      struct ieee80211_hdr* hdr = (struct ieee80211_hdr*)skb->data;
      struct ieee80211_rx_status* stats = IEEE80211_SKB_RXCB(skb);
      struct iwl_mvm_key_pn* ptk_pn;
      int res;
      uint8_t tid, keyidx;
      uint8_t pn[IEEE80211_CCMP_PN_LEN];
      uint8_t* extiv;
  
      /* do PN checking */
  
      /* multicast and non-data only arrives on default queue */
      if (!ieee80211_is_data(hdr->frame_control) || is_multicast_ether_addr(hdr->addr1)) { return 0; }
  
      /* do not check PN for open AP */
      if (!(stats->flag & RX_FLAG_DECRYPTED)) { return 0; }
  
      /*
       * avoid checking for default queue - we don't want to replicate
       * all the logic that's necessary for checking the PN on fragmented
       * frames, leave that to mac80211
       */
      if (queue == 0) { return 0; }
  
      /* if we are here - this for sure is either CCMP or GCMP */
      if (IS_ERR_OR_NULL(sta)) {
          IWL_ERR(mvm, "expected hw-decrypted unicast frame for station\n");
          return -1;
      }
  
      mvmsta = iwl_mvm_sta_from_mac80211(sta);
  
      extiv = (uint8_t*)hdr + ieee80211_hdrlen(hdr->frame_control);
      keyidx = extiv[3] >> 6;
  
      ptk_pn = rcu_dereference(mvmsta->ptk_pn[keyidx]);
      if (!ptk_pn) { return -1; }
  
      if (ieee80211_is_data_qos(hdr->frame_control)) {
          tid = ieee80211_get_tid(hdr);
      } else {
          tid = 0;
      }
  
      /* we don't use HCCA/802.11 QoS TSPECs, so drop such frames */
      if (tid >= IWL_MAX_TID_COUNT) { return -1; }
  
      /* load pn */
      pn[0] = extiv[7];
      pn[1] = extiv[6];
      pn[2] = extiv[5];
      pn[3] = extiv[4];
      pn[4] = extiv[1];
      pn[5] = extiv[0];
  
      res = memcmp(pn, ptk_pn->q[queue].pn[tid], IEEE80211_CCMP_PN_LEN);
      if (res < 0) { return -1; }
      if (!res && !(stats->flag & RX_FLAG_ALLOW_SAME_PN)) { return -1; }
  
      memcpy(ptk_pn->q[queue].pn[tid], pn, IEEE80211_CCMP_PN_LEN);
      stats->flag |= RX_FLAG_PN_VALIDATED;
  
      return 0;
  }
  
  /* iwl_mvm_create_skb Adds the rxb to a new skb */
  static void iwl_mvm_create_skb(struct sk_buff* skb, struct ieee80211_hdr* hdr, uint16_t len,
                                 uint8_t crypt_len, struct iwl_rx_cmd_buffer* rxb) {
      struct iwl_rx_packet* pkt = rxb_addr(rxb);
      struct iwl_rx_mpdu_desc* desc = (void*)pkt->data;
      unsigned int headlen, fraglen, pad_len = 0;
      unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
  
      if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
          len -= 2;
          pad_len = 2;
      }
  
      /* If frame is small enough to fit in skb->head, pull it completely.
       * If not, only pull ieee80211_hdr (including crypto if present, and
       * an additional 8 bytes for SNAP/ethertype, see below) so that
       * splice() or TCP coalesce are more efficient.
       *
       * Since, in addition, ieee80211_data_to_8023() always pull in at
       * least 8 bytes (possibly more for mesh) we can do the same here
       * to save the cost of doing it later. That still doesn't pull in
       * the actual IP header since the typical case has a SNAP header.
       * If the latter changes (there are efforts in the standards group
       * to do so) we should revisit this and ieee80211_data_to_8023().
       */
      headlen = (len <= skb_tailroom(skb)) ? len : hdrlen + crypt_len + 8;
  
      /* The firmware may align the packet to DWORD.
       * The padding is inserted after the IV.
       * After copying the header + IV skip the padding if
       * present before copying packet data.
       */
      hdrlen += crypt_len;
      skb_put_data(skb, hdr, hdrlen);
      skb_put_data(skb, (uint8_t*)hdr + hdrlen + pad_len, headlen - hdrlen);
  
      fraglen = len - headlen;
  
      if (fraglen) {
          int offset = (void*)hdr + headlen + pad_len - rxb_addr(rxb) + rxb_offset(rxb);
  
          skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset, fraglen, rxb->truesize);
      }
  }
  
  /* iwl_mvm_pass_packet_to_mac80211 - passes the packet for mac80211 */
  static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm* mvm, struct napi_struct* napi,
                                              struct sk_buff* skb, int queue,
                                              struct ieee80211_sta* sta) {
      struct ieee80211_rx_status* rx_status = IEEE80211_SKB_RXCB(skb);
  
      if (iwl_mvm_check_pn(mvm, skb, queue, sta)) {
          kfree_skb(skb);
      } else {
          unsigned int radiotap_len = 0;
  
          if (rx_status->flag & RX_FLAG_RADIOTAP_HE) {
              radiotap_len += sizeof(struct ieee80211_radiotap_he);
          }
          if (rx_status->flag & RX_FLAG_RADIOTAP_HE_MU) {
              radiotap_len += sizeof(struct ieee80211_radiotap_he_mu);
          }
          __skb_push(skb, radiotap_len);
          ieee80211_rx_napi(mvm->hw, sta, skb, napi);
      }
  }
  
  static void iwl_mvm_get_signal_strength(struct iwl_mvm* mvm, struct ieee80211_rx_status* rx_status,
                                          uint32_t rate_n_flags, int energy_a, int energy_b) {
      int max_energy;
      uint32_t rate_flags = rate_n_flags;
  
      energy_a = energy_a ? -energy_a : S8_MIN;
      energy_b = energy_b ? -energy_b : S8_MIN;
      max_energy = max(energy_a, energy_b);
  
      IWL_DEBUG_STATS(mvm, "energy In A %d B %d, and max %d\n", energy_a, energy_b, max_energy);
  
      rx_status->signal = max_energy;
      rx_status->chains = (rate_flags & RATE_MCS_ANT_AB_MSK) >> RATE_MCS_ANT_POS;
      rx_status->chain_signal[0] = energy_a;
      rx_status->chain_signal[1] = energy_b;
      rx_status->chain_signal[2] = S8_MIN;
  }
  
  static int iwl_mvm_rx_crypto(struct iwl_mvm* mvm, struct ieee80211_hdr* hdr,
                               struct ieee80211_rx_status* stats, uint16_t phy_info,
                               struct iwl_rx_mpdu_desc* desc, uint32_t pkt_flags, int queue,
                               uint8_t* crypt_len) {
      uint16_t status = le16_to_cpu(desc->status);
  
      /*
       * Drop UNKNOWN frames in aggregation, unless in monitor mode
       * (where we don't have the keys).
       * We limit this to aggregation because in TKIP this is a valid
       * scenario, since we may not have the (correct) TTAK (phase 1
       * key) in the firmware.
       */
      if (phy_info & IWL_RX_MPDU_PHY_AMPDU &&
          (status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_UNKNOWN &&
          !mvm->monitor_on) {
          return -1;
      }
  
      if (!ieee80211_has_protected(hdr->frame_control) ||
          (status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_NONE) {
          return 0;
      }
  
      /* TODO: handle packets encrypted with unknown alg */
  
      switch (status & IWL_RX_MPDU_STATUS_SEC_MASK) {
      case IWL_RX_MPDU_STATUS_SEC_CCM:
      case IWL_RX_MPDU_STATUS_SEC_GCM:
          BUILD_BUG_ON(IEEE80211_CCMP_PN_LEN != IEEE80211_GCMP_PN_LEN);
          /* alg is CCM: check MIC only */
          if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) { return -1; }
  
          stats->flag |= RX_FLAG_DECRYPTED;
          if (pkt_flags & FH_RSCSR_RADA_EN) { stats->flag |= RX_FLAG_MIC_STRIPPED; }
          *crypt_len = IEEE80211_CCMP_HDR_LEN;
          return 0;
      case IWL_RX_MPDU_STATUS_SEC_TKIP:
          /* Don't drop the frame and decrypt it in SW */
          if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_DEPRECATE_TTAK) &&
              !(status & IWL_RX_MPDU_RES_STATUS_TTAK_OK)) {
              return 0;
          }
  
          if (mvm->trans->cfg->gen2 && !(status & RX_MPDU_RES_STATUS_MIC_OK)) {
              stats->flag |= RX_FLAG_MMIC_ERROR;
          }
  
          *crypt_len = IEEE80211_TKIP_IV_LEN;
      /* fall through if TTAK OK */
      case IWL_RX_MPDU_STATUS_SEC_WEP:
          if (!(status & IWL_RX_MPDU_STATUS_ICV_OK)) { return -1; }
  
          stats->flag |= RX_FLAG_DECRYPTED;
          if ((status & IWL_RX_MPDU_STATUS_SEC_MASK) == IWL_RX_MPDU_STATUS_SEC_WEP) {
              *crypt_len = IEEE80211_WEP_IV_LEN;
          }
  
          if (pkt_flags & FH_RSCSR_RADA_EN) {
              stats->flag |= RX_FLAG_ICV_STRIPPED;
              if (mvm->trans->cfg->gen2) { stats->flag |= RX_FLAG_MMIC_STRIPPED; }
          }
  
          return 0;
      case IWL_RX_MPDU_STATUS_SEC_EXT_ENC:
          if (!(status & IWL_RX_MPDU_STATUS_MIC_OK)) { return -1; }
          stats->flag |= RX_FLAG_DECRYPTED;
          return 0;
      default:
          /* Expected in monitor (not having the keys) */
          if (!mvm->monitor_on) { IWL_ERR(mvm, "Unhandled alg: 0x%x\n", status); }
      }
  
      return 0;
  }
  
  static void iwl_mvm_rx_csum(struct ieee80211_sta* sta, struct sk_buff* skb,
                              struct iwl_rx_mpdu_desc* desc) {
      struct iwl_mvm_sta* mvmsta = iwl_mvm_sta_from_mac80211(sta);
      struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(mvmsta->vif);
      uint16_t flags = le16_to_cpu(desc->l3l4_flags);
      uint8_t l3_prot = (uint8_t)((flags & IWL_RX_L3L4_L3_PROTO_MASK) >> IWL_RX_L3_PROTO_POS);
  
      if (mvmvif->features & NETIF_F_RXCSUM && flags & IWL_RX_L3L4_TCP_UDP_CSUM_OK &&
          (flags & IWL_RX_L3L4_IP_HDR_CSUM_OK || l3_prot == IWL_RX_L3_TYPE_IPV6 ||
           l3_prot == IWL_RX_L3_TYPE_IPV6_FRAG)) {
          skb->ip_summed = CHECKSUM_UNNECESSARY;
      }
  }
  
  /*
   * returns true if a packet is a duplicate and should be dropped.
   * Updates AMSDU PN tracking info
   */
  static bool iwl_mvm_is_dup(struct ieee80211_sta* sta, int queue,
                             struct ieee80211_rx_status* rx_status, struct ieee80211_hdr* hdr,
                             struct iwl_rx_mpdu_desc* desc) {
      struct iwl_mvm_sta* mvm_sta;
      struct iwl_mvm_rxq_dup_data* dup_data;
      uint8_t tid, sub_frame_idx;
  
      if (WARN_ON(IS_ERR_OR_NULL(sta))) { return false; }
  
      mvm_sta = iwl_mvm_sta_from_mac80211(sta);
      dup_data = &mvm_sta->dup_data[queue];
  
      /*
       * Drop duplicate 802.11 retransmissions
       * (IEEE 802.11-2012: 9.3.2.10 "Duplicate detection and recovery")
       */
      if (ieee80211_is_ctl(hdr->frame_control) || ieee80211_is_qos_nullfunc(hdr->frame_control) ||
          is_multicast_ether_addr(hdr->addr1)) {
          rx_status->flag |= RX_FLAG_DUP_VALIDATED;
          return false;
      }
  
      if (ieee80211_is_data_qos(hdr->frame_control)) { /* frame has qos control */
          tid = ieee80211_get_tid(hdr);
      } else {
          tid = IWL_MAX_TID_COUNT;
      }
  
      /* If this wasn't a part of an A-MSDU the sub-frame index will be 0 */
      sub_frame_idx = desc->amsdu_info & IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
  
      if (unlikely(ieee80211_has_retry(hdr->frame_control) &&
                   dup_data->last_seq[tid] == hdr->seq_ctrl &&
                   dup_data->last_sub_frame[tid] >= sub_frame_idx)) {
          return true;
      }
  
      /* Allow same PN as the first subframe for following sub frames */
      if (dup_data->last_seq[tid] == hdr->seq_ctrl && sub_frame_idx > dup_data->last_sub_frame[tid] &&
          desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) {
          rx_status->flag |= RX_FLAG_ALLOW_SAME_PN;
      }
  
      dup_data->last_seq[tid] = hdr->seq_ctrl;
      dup_data->last_sub_frame[tid] = sub_frame_idx;
  
      rx_status->flag |= RX_FLAG_DUP_VALIDATED;
  
      return false;
  }
  
  int iwl_mvm_notify_rx_queue(struct iwl_mvm* mvm, uint32_t rxq_mask, const uint8_t* data,
                              uint32_t count) {
      struct iwl_rxq_sync_cmd* cmd;
      uint32_t data_size = sizeof(*cmd) + count;
      int ret;
  
      /* should be DWORD aligned */
      if (WARN_ON(count & 3 || count > IWL_MULTI_QUEUE_SYNC_MSG_MAX_SIZE)) { return -EINVAL; }
  
      cmd = kzalloc(data_size, GFP_KERNEL);
      if (!cmd) { return -ENOMEM; }
  
      cmd->rxq_mask = cpu_to_le32(rxq_mask);
      cmd->count = cpu_to_le32(count);
      cmd->flags = 0;
      memcpy(cmd->payload, data, count);
  
      ret = iwl_mvm_send_cmd_pdu(mvm, WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD), 0,
                                 data_size, cmd);
  
      kfree(cmd);
      return ret;
  }
  
  /*
   * Returns true if sn2 - buffer_size < sn1 < sn2.
   * To be used only in order to compare reorder buffer head with NSSN.
   * We fully trust NSSN unless it is behind us due to reorder timeout.
   * Reorder timeout can only bring us up to buffer_size SNs ahead of NSSN.
   */
  static bool iwl_mvm_is_sn_less(uint16_t sn1, uint16_t sn2, uint16_t buffer_size) {
      return ieee80211_sn_less(sn1, sn2) && !ieee80211_sn_less(sn1, sn2 - buffer_size);
  }
  
  #define RX_REORDER_BUF_TIMEOUT_MQ (HZ / 10)
  
  static void iwl_mvm_release_frames(struct iwl_mvm* mvm, struct ieee80211_sta* sta,
                                     struct napi_struct* napi, struct iwl_mvm_baid_data* baid_data,
                                     struct iwl_mvm_reorder_buffer* reorder_buf, uint16_t nssn) {
      struct iwl_mvm_reorder_buf_entry* entries =
          &baid_data->entries[reorder_buf->queue * baid_data->entries_per_queue];
      uint16_t ssn = reorder_buf->head_sn;
  
      lockdep_assert_held(&reorder_buf->lock);
  
      /* ignore nssn smaller than head sn - this can happen due to timeout */
      if (iwl_mvm_is_sn_less(nssn, ssn, reorder_buf->buf_size)) { goto set_timer; }
  
      while (iwl_mvm_is_sn_less(ssn, nssn, reorder_buf->buf_size)) {
          int index = ssn % reorder_buf->buf_size;
          struct sk_buff_head* skb_list = &entries[index].e.frames;
          struct sk_buff* skb;
  
          ssn = ieee80211_sn_inc(ssn);
  
          /*
           * Empty the list. Will have more than one frame for A-MSDU.
           * Empty list is valid as well since nssn indicates frames were
           * received.
           */
          while ((skb = __skb_dequeue(skb_list))) {
              iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, reorder_buf->queue, sta);
              reorder_buf->num_stored--;
          }
      }
      reorder_buf->head_sn = nssn;
  
  set_timer:
      if (reorder_buf->num_stored && !reorder_buf->removed) {
          uint16_t index = reorder_buf->head_sn % reorder_buf->buf_size;
  
          while (skb_queue_empty(&entries[index].e.frames)) {
              index = (index + 1) % reorder_buf->buf_size;
          }
          /* modify timer to match next frame's expiration time */
          mod_timer(&reorder_buf->reorder_timer,
                    entries[index].e.reorder_time + 1 + RX_REORDER_BUF_TIMEOUT_MQ);
      } else {
          del_timer(&reorder_buf->reorder_timer);
      }
  }
  
  void iwl_mvm_reorder_timer_expired(struct timer_list* t) {
      struct iwl_mvm_reorder_buffer* buf = from_timer(buf, t, reorder_timer);
      struct iwl_mvm_baid_data* baid_data = iwl_mvm_baid_data_from_reorder_buf(buf);
      struct iwl_mvm_reorder_buf_entry* entries =
          &baid_data->entries[buf->queue * baid_data->entries_per_queue];
      int i;
      uint16_t sn = 0, index = 0;
      bool expired = false;
      bool cont = false;
  
      spin_lock(&buf->lock);
  
      if (!buf->num_stored || buf->removed) {
          spin_unlock(&buf->lock);
          return;
      }
  
      for (i = 0; i < buf->buf_size; i++) {
          index = (buf->head_sn + i) % buf->buf_size;
  
          if (skb_queue_empty(&entries[index].e.frames)) {
              /*
               * If there is a hole and the next frame didn't expire
               * we want to break and not advance SN
               */
              cont = false;
              continue;
          }
          if (!cont &&
              !time_after(jiffies, entries[index].e.reorder_time + RX_REORDER_BUF_TIMEOUT_MQ)) {
              break;
          }
  
          expired = true;
          /* continue until next hole after this expired frames */
          cont = true;
          sn = ieee80211_sn_add(buf->head_sn, i + 1);
      }
  
      if (expired) {
          struct ieee80211_sta* sta;
          struct iwl_mvm_sta* mvmsta;
          uint8_t sta_id = baid_data->sta_id;
  
          rcu_read_lock();
          sta = rcu_dereference(buf->mvm->fw_id_to_mac_id[sta_id]);
          mvmsta = iwl_mvm_sta_from_mac80211(sta);
  
          /* SN is set to the last expired frame + 1 */
          IWL_DEBUG_HT(buf->mvm, "Releasing expired frames for sta %u, sn %d\n", sta_id, sn);
          iwl_mvm_event_frame_timeout_callback(buf->mvm, mvmsta->vif, sta, baid_data->tid);
          iwl_mvm_release_frames(buf->mvm, sta, NULL, baid_data, buf, sn);
          rcu_read_unlock();
      } else {
          /*
           * If no frame expired and there are stored frames, index is now
           * pointing to the first unexpired frame - modify timer
           * accordingly to this frame.
           */
          mod_timer(&buf->reorder_timer,
                    entries[index].e.reorder_time + 1 + RX_REORDER_BUF_TIMEOUT_MQ);
      }
      spin_unlock(&buf->lock);
  }
  
  static void iwl_mvm_del_ba(struct iwl_mvm* mvm, int queue, struct iwl_mvm_delba_data* data) {
      struct iwl_mvm_baid_data* ba_data;
      struct ieee80211_sta* sta;
      struct iwl_mvm_reorder_buffer* reorder_buf;
      uint8_t baid = data->baid;
  
      if (WARN_ONCE(baid >= IWL_MAX_BAID, "invalid BAID: %x\n", baid)) { return; }
  
      rcu_read_lock();
  
      ba_data = rcu_dereference(mvm->baid_map[baid]);
      if (WARN_ON_ONCE(!ba_data)) { goto out; }
  
      sta = rcu_dereference(mvm->fw_id_to_mac_id[ba_data->sta_id]);
      if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { goto out; }
  
      reorder_buf = &ba_data->reorder_buf[queue];
  
      /* release all frames that are in the reorder buffer to the stack */
      spin_lock_bh(&reorder_buf->lock);
      iwl_mvm_release_frames(mvm, sta, NULL, ba_data, reorder_buf,
                             ieee80211_sn_add(reorder_buf->head_sn, reorder_buf->buf_size));
      spin_unlock_bh(&reorder_buf->lock);
      del_timer_sync(&reorder_buf->reorder_timer);
  
  out:
      rcu_read_unlock();
  }
  #endif  // NEEDS_PORTING
  
  void iwl_mvm_rx_queue_notif(struct iwl_mvm* mvm, struct iwl_rx_cmd_buffer* rxb, int queue) {
  #if 0   // NEEDS_PORTING
      struct iwl_rx_packet* pkt = rxb_addr(rxb);
      struct iwl_rxq_sync_notification* notif;
      struct iwl_mvm_internal_rxq_notif* internal_notif;
  
      notif = (void*)pkt->data;
      internal_notif = (void*)notif->payload;
  
      if (internal_notif->sync && mvm->queue_sync_cookie != internal_notif->cookie) {
          WARN_ONCE(1, "Received expired RX queue sync message\n");
          return;
      }
  
      switch (internal_notif->type) {
      case IWL_MVM_RXQ_EMPTY:
          break;
      case IWL_MVM_RXQ_NOTIF_DEL_BA:
          iwl_mvm_del_ba(mvm, queue, (void*)internal_notif->data);
          break;
      default:
          WARN_ONCE(1, "Invalid identifier %d", internal_notif->type);
      }
  
      if (internal_notif->sync && !atomic_dec_return(&mvm->queue_sync_counter)) {
          wake_up(&mvm->rx_sync_waitq);
      }
  #endif  // NEEDS_PORTING
  }
  
  #if 0   // NEEDS_PORTING
  /*
   * Returns true if the MPDU was buffered\dropped, false if it should be passed
   * to upper layer.
   */
  static bool iwl_mvm_reorder(struct iwl_mvm* mvm, struct napi_struct* napi, int queue,
                              struct ieee80211_sta* sta, struct sk_buff* skb,
                              struct iwl_rx_mpdu_desc* desc) {
      struct ieee80211_hdr* hdr = (struct ieee80211_hdr*)skb->data;
      struct iwl_mvm_sta* mvm_sta;
      struct iwl_mvm_baid_data* baid_data;
      struct iwl_mvm_reorder_buffer* buffer;
      struct sk_buff* tail;
      uint32_t reorder = le32_to_cpu(desc->reorder_data);
      bool amsdu = desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU;
      bool last_subframe = desc->amsdu_info & IWL_RX_MPDU_AMSDU_LAST_SUBFRAME;
      uint8_t tid = ieee80211_get_tid(hdr);
      uint8_t sub_frame_idx = desc->amsdu_info & IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
      struct iwl_mvm_reorder_buf_entry* entries;
      int index;
      uint16_t nssn, sn;
      uint8_t baid;
  
      baid = (reorder & IWL_RX_MPDU_REORDER_BAID_MASK) >> IWL_RX_MPDU_REORDER_BAID_SHIFT;
  
      /*
       * This also covers the case of receiving a Block Ack Request
       * outside a BA session; we'll pass it to mac80211 and that
       * then sends a delBA action frame.
       */
      if (baid == IWL_RX_REORDER_DATA_INVALID_BAID) { return false; }
  
      /* no sta yet */
      if (WARN_ONCE(IS_ERR_OR_NULL(sta), "Got valid BAID without a valid station assigned\n")) {
          return false;
      }
  
      mvm_sta = iwl_mvm_sta_from_mac80211(sta);
  
      /* not a data packet or a bar */
      if (!ieee80211_is_back_req(hdr->frame_control) &&
          (!ieee80211_is_data_qos(hdr->frame_control) || is_multicast_ether_addr(hdr->addr1))) {
          return false;
      }
  
      if (unlikely(!ieee80211_is_data_present(hdr->frame_control))) { return false; }
  
      baid_data = rcu_dereference(mvm->baid_map[baid]);
      if (!baid_data) {
          IWL_DEBUG_RX(mvm,
                       "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d "
                       "reorder 0x%x\n",
                       baid, reorder);
          return false;
      }
  
      if (WARN(tid != baid_data->tid || mvm_sta->sta_id != baid_data->sta_id,
               "baid 0x%x is mapped to sta:%d tid:%d, but was received for sta:%d tid:%d\n", baid,
               baid_data->sta_id, baid_data->tid, mvm_sta->sta_id, tid)) {
          return false;
      }
  
      nssn = reorder & IWL_RX_MPDU_REORDER_NSSN_MASK;
      sn = (reorder & IWL_RX_MPDU_REORDER_SN_MASK) >> IWL_RX_MPDU_REORDER_SN_SHIFT;
  
      buffer = &baid_data->reorder_buf[queue];
      entries = &baid_data->entries[queue * baid_data->entries_per_queue];
  
      spin_lock_bh(&buffer->lock);
  
      if (!buffer->valid) {
          if (reorder & IWL_RX_MPDU_REORDER_BA_OLD_SN) {
              spin_unlock_bh(&buffer->lock);
              return false;
          }
          buffer->valid = true;
      }
  
      if (ieee80211_is_back_req(hdr->frame_control)) {
          iwl_mvm_release_frames(mvm, sta, napi, baid_data, buffer, nssn);
          goto drop;
      }
  
      /*
       * If there was a significant jump in the nssn - adjust.
       * If the SN is smaller than the NSSN it might need to first go into
       * the reorder buffer, in which case we just release up to it and the
       * rest of the function will take care of storing it and releasing up to
       * the nssn
       */
      if (!iwl_mvm_is_sn_less(nssn, buffer->head_sn + buffer->buf_size, buffer->buf_size) ||
          !ieee80211_sn_less(sn, buffer->head_sn + buffer->buf_size)) {
          uint16_t min_sn = ieee80211_sn_less(sn, nssn) ? sn : nssn;
  
          iwl_mvm_release_frames(mvm, sta, napi, baid_data, buffer, min_sn);
      }
  
      /* drop any oudated packets */
      if (ieee80211_sn_less(sn, buffer->head_sn)) { goto drop; }
  
      /* release immediately if allowed by nssn and no stored frames */
      if (!buffer->num_stored && ieee80211_sn_less(sn, nssn)) {
          if (iwl_mvm_is_sn_less(buffer->head_sn, nssn, buffer->buf_size) &&
              (!amsdu || last_subframe)) {
              buffer->head_sn = nssn;
          }
          /* No need to update AMSDU last SN - we are moving the head */
          spin_unlock_bh(&buffer->lock);
          return false;
      }
  
      /*
       * release immediately if there are no stored frames, and the sn is
       * equal to the head.
       * This can happen due to reorder timer, where NSSN is behind head_sn.
       * When we released everything, and we got the next frame in the
       * sequence, according to the NSSN we can't release immediately,
       * while technically there is no hole and we can move forward.
       */
      if (!buffer->num_stored && sn == buffer->head_sn) {
          if (!amsdu || last_subframe) { buffer->head_sn = ieee80211_sn_inc(buffer->head_sn); }
          /* No need to update AMSDU last SN - we are moving the head */
          spin_unlock_bh(&buffer->lock);
          return false;
      }
  
      index = sn % buffer->buf_size;
  
      /*
       * Check if we already stored this frame
       * As AMSDU is either received or not as whole, logic is simple:
       * If we have frames in that position in the buffer and the last frame
       * originated from AMSDU had a different SN then it is a retransmission.
       * If it is the same SN then if the subframe index is incrementing it
       * is the same AMSDU - otherwise it is a retransmission.
       */
      tail = skb_peek_tail(&entries[index].e.frames);
      if (tail && !amsdu) {
          goto drop;
      } else if (tail && (sn != buffer->last_amsdu || buffer->last_sub_index >= sub_frame_idx)) {
          goto drop;
      }
  
      /* put in reorder buffer */
      __skb_queue_tail(&entries[index].e.frames, skb);
      buffer->num_stored++;
      entries[index].e.reorder_time = jiffies;
  
      if (amsdu) {
          buffer->last_amsdu = sn;
          buffer->last_sub_index = sub_frame_idx;
      }
  
      /*
       * We cannot trust NSSN for AMSDU sub-frames that are not the last.
       * The reason is that NSSN advances on the first sub-frame, and may
       * cause the reorder buffer to advance before all the sub-frames arrive.
       * Example: reorder buffer contains SN 0 & 2, and we receive AMSDU with
       * SN 1. NSSN for first sub frame will be 3 with the result of driver
       * releasing SN 0,1, 2. When sub-frame 1 arrives - reorder buffer is
       * already ahead and it will be dropped.
       * If the last sub-frame is not on this queue - we will get frame
       * release notification with up to date NSSN.
       */
      if (!amsdu || last_subframe) {
          iwl_mvm_release_frames(mvm, sta, napi, baid_data, buffer, nssn);
      }
  
      spin_unlock_bh(&buffer->lock);
      return true;
  
  drop:
      kfree_skb(skb);
      spin_unlock_bh(&buffer->lock);
      return true;
  }
  
  static void iwl_mvm_agg_rx_received(struct iwl_mvm* mvm, uint32_t reorder_data, uint8_t baid) {
      unsigned long now = jiffies;
      unsigned long timeout;
      struct iwl_mvm_baid_data* data;
  
      rcu_read_lock();
  
      data = rcu_dereference(mvm->baid_map[baid]);
      if (!data) {
          IWL_DEBUG_RX(mvm,
                       "Got valid BAID but no baid allocated, bypass the re-ordering buffer. Baid %d "
                       "reorder 0x%x\n",
                       baid, reorder_data);
          goto out;
      }
  
      if (!data->timeout) { goto out; }
  
      timeout = data->timeout;
      /*
       * Do not update last rx all the time to avoid cache bouncing
       * between the rx queues.
       * Update it every timeout. Worst case is the session will
       * expire after ~ 2 * timeout, which doesn't matter that much.
       */
      if (time_before(data->last_rx + TU_TO_JIFFIES(timeout), now)) { /* Update is atomic */
          data->last_rx = now;
      }
  
  out:
      rcu_read_unlock();
  }
  
  static void iwl_mvm_flip_address(uint8_t* addr) {
      int i;
      uint8_t mac_addr[ETH_ALEN];
  
      for (i = 0; i < ETH_ALEN; i++) {
          mac_addr[i] = addr[ETH_ALEN - i - 1];
      }
      ether_addr_copy(addr, mac_addr);
  }
  
  struct iwl_mvm_rx_phy_data {
      enum iwl_rx_phy_info_type info_type;
      __le32 d0, d1, d2, d3;
      __le16 d4;
  };
  
  static void iwl_mvm_decode_he_mu_ext(struct iwl_mvm* mvm, struct iwl_mvm_rx_phy_data* phy_data,
                                       uint32_t rate_n_flags,
                                       struct ieee80211_radiotap_he_mu* he_mu) {
      uint32_t phy_data2 = le32_to_cpu(phy_data->d2);
      uint32_t phy_data3 = le32_to_cpu(phy_data->d3);
      uint16_t phy_data4 = le16_to_cpu(phy_data->d4);
  
      if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CRC_OK, phy_data4)) {
          he_mu->flags1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN |
                                       IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN);
  
          he_mu->flags1 |=
              le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH1_CTR_RU, phy_data4),
                               IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU);
  
          he_mu->ru_ch1[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU0, phy_data2);
          he_mu->ru_ch1[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU1, phy_data3);
          he_mu->ru_ch1[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH1_RU2, phy_data2);
          he_mu->ru_ch1[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH1_RU3, phy_data3);
      }
  
      if (FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CRC_OK, phy_data4) &&
          (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) != RATE_MCS_CHAN_WIDTH_20) {
          he_mu->flags1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN |
                                       IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN);
  
          he_mu->flags2 |=
              le16_encode_bits(FIELD_GET(IWL_RX_PHY_DATA4_HE_MU_EXT_CH2_CTR_RU, phy_data4),
                               IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU);
  
          he_mu->ru_ch2[0] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU0, phy_data2);
          he_mu->ru_ch2[1] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU1, phy_data3);
          he_mu->ru_ch2[2] = FIELD_GET(IWL_RX_PHY_DATA2_HE_MU_EXT_CH2_RU2, phy_data2);
          he_mu->ru_ch2[3] = FIELD_GET(IWL_RX_PHY_DATA3_HE_MU_EXT_CH2_RU3, phy_data3);
      }
  }
  
  static void iwl_mvm_decode_he_phy_ru_alloc(struct iwl_mvm_rx_phy_data* phy_data,
                                             uint32_t rate_n_flags, struct ieee80211_radiotap_he* he,
                                             struct ieee80211_radiotap_he_mu* he_mu,
                                             struct ieee80211_rx_status* rx_status) {
      /*
       * Unfortunately, we have to leave the mac80211 data
       * incorrect for the case that we receive an HE-MU
       * transmission and *don't* have the HE phy data (due
       * to the bits being used for TSF). This shouldn't
       * happen though as management frames where we need
       * the TSF/timers are not be transmitted in HE-MU.
       */
      uint8_t ru = le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_RU_ALLOC_MASK);
      uint8_t offs = 0;
  
      rx_status->bw = RATE_INFO_BW_HE_RU;
  
      he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
  
      switch (ru) {
      case 0 ... 36:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26;
          offs = ru;
          break;
      case 37 ... 52:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52;
          offs = ru - 37;
          break;
      case 53 ... 60:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
          offs = ru - 53;
          break;
      case 61 ... 64:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242;
          offs = ru - 61;
          break;
      case 65 ... 66:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484;
          offs = ru - 65;
          break;
      case 67:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996;
          break;
      case 68:
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996;
          break;
      }
      he->data2 |= le16_encode_bits(offs, IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET);
      he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN |
                               IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN);
      if (phy_data->d1 & cpu_to_le32(IWL_RX_PHY_DATA1_HE_RU_ALLOC_SEC80)) {
          he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);
      }
  
      if (he_mu) {
  #define CHECK_BW(bw)                                                           \
      BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_##bw##MHZ != \
                   RATE_MCS_CHAN_WIDTH_##bw >> RATE_MCS_CHAN_WIDTH_POS)
          CHECK_BW(20);
          CHECK_BW(40);
          CHECK_BW(80);
          CHECK_BW(160);
          he_mu->flags2 |= le16_encode_bits(FIELD_GET(RATE_MCS_CHAN_WIDTH_MSK, rate_n_flags),
                                            IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW);
      }
  }
  
  static void iwl_mvm_decode_he_phy_data(struct iwl_mvm* mvm, struct iwl_mvm_rx_phy_data* phy_data,
                                         struct ieee80211_radiotap_he* he,
                                         struct ieee80211_radiotap_he_mu* he_mu,
                                         struct ieee80211_rx_status* rx_status, uint32_t rate_n_flags,
                                         int queue) {
      switch (phy_data->info_type) {
      case IWL_RX_PHY_INFO_TYPE_NONE:
      case IWL_RX_PHY_INFO_TYPE_CCK:
      case IWL_RX_PHY_INFO_TYPE_OFDM_LGCY:
      case IWL_RX_PHY_INFO_TYPE_HT:
      case IWL_RX_PHY_INFO_TYPE_VHT_SU:
      case IWL_RX_PHY_INFO_TYPE_VHT_MU:
          return;
      case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
          he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN);
          he->data4 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE1),
                               IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1);
          he->data4 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE2),
                               IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2);
          he->data4 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE3),
                               IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3);
          he->data4 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA2_HE_TB_EXT_SPTL_REUSE4),
                               IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4);
      /* fall through */
      case IWL_RX_PHY_INFO_TYPE_HE_SU:
      case IWL_RX_PHY_INFO_TYPE_HE_MU:
      case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
      case IWL_RX_PHY_INFO_TYPE_HE_TB:
          /* HE common */
          he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN);
          he->data2 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN |
                                   IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);
          he->data3 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_BSS_COLOR_MASK),
                               IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR);
          if (phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB &&
              phy_data->info_type != IWL_RX_PHY_INFO_TYPE_HE_TB_EXT) {
              he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN);
              he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_UPLINK),
                                            IEEE80211_RADIOTAP_HE_DATA3_UL_DL);
          }
          he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_LDPC_EXT_SYM),
                                        IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG);
          he->data4 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_SPATIAL_REUSE_MASK),
                               IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE);
          he->data5 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_PRE_FEC_PAD_MASK),
                               IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD);
          he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_PE_DISAMBIG),
                                        IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG);
          he->data5 |= le16_encode_bits(le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_LTF_NUM_MASK),
                                        IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS);
          he->data6 |=
              le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_TXOP_DUR_MASK),
                               IEEE80211_RADIOTAP_HE_DATA6_TXOP);
          he->data6 |= le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_DOPPLER),
                                        IEEE80211_RADIOTAP_HE_DATA6_DOPPLER);
          break;
      }
  
      switch (phy_data->info_type) {
      case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
          he_mu->flags1 |=
              le16_encode_bits(le16_get_bits(phy_data->d4, IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_DCM),
                               IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
          he_mu->flags1 |=
              le16_encode_bits(le16_get_bits(phy_data->d4, IWL_RX_PHY_DATA4_HE_MU_EXT_SIGB_MCS_MASK),
                               IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
          he_mu->flags2 |= le16_encode_bits(
              le16_get_bits(phy_data->d4, IWL_RX_PHY_DATA4_HE_MU_EXT_PREAMBLE_PUNC_TYPE_MASK),
              IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
          iwl_mvm_decode_he_mu_ext(mvm, phy_data, rate_n_flags, he_mu);
      /* fall through */
      case IWL_RX_PHY_INFO_TYPE_HE_MU:
          he_mu->flags2 |= le16_encode_bits(
              le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_MU_SIBG_SYM_OR_USER_NUM_MASK),
              IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
          he_mu->flags2 |=
              le16_encode_bits(le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_HE_MU_SIGB_COMPRESSION),
                               IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);
      /* fall through */
      case IWL_RX_PHY_INFO_TYPE_HE_TB:
      case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
          iwl_mvm_decode_he_phy_ru_alloc(phy_data, rate_n_flags, he, he_mu, rx_status);
          break;
      case IWL_RX_PHY_INFO_TYPE_HE_SU:
          he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN);
          he->data3 |= le16_encode_bits(le32_get_bits(phy_data->d0, IWL_RX_PHY_DATA0_HE_BEAM_CHNG),
                                        IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE);
          break;
      default:
          /* nothing */
          break;
      }
  }
  
  static void iwl_mvm_rx_he(struct iwl_mvm* mvm, struct sk_buff* skb,
                            struct iwl_mvm_rx_phy_data* phy_data, uint32_t rate_n_flags,
                            uint16_t phy_info, int queue) {
      struct ieee80211_rx_status* rx_status = IEEE80211_SKB_RXCB(skb);
      struct ieee80211_radiotap_he* he = NULL;
      struct ieee80211_radiotap_he_mu* he_mu = NULL;
      uint32_t he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
      uint8_t stbc, ltf;
      static const struct ieee80211_radiotap_he known = {
          .data1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN |
                               IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN |
                               IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN |
                               IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN),
          .data2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN |
                               IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN),
      };
      static const struct ieee80211_radiotap_he_mu mu_known = {
          .flags1 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN |
                                IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN |
                                IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN |
                                IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN),
          .flags2 = cpu_to_le16(IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN |
                                IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN),
      };
      unsigned int radiotap_len = 0;
  
      he = skb_put_data(skb, &known, sizeof(known));
      radiotap_len += sizeof(known);
      rx_status->flag |= RX_FLAG_RADIOTAP_HE;
  
      if (phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU ||
          phy_data->info_type == IWL_RX_PHY_INFO_TYPE_HE_MU_EXT) {
          he_mu = skb_put_data(skb, &mu_known, sizeof(mu_known));
          radiotap_len += sizeof(mu_known);
          rx_status->flag |= RX_FLAG_RADIOTAP_HE_MU;
      }
  
      /* temporarily hide the radiotap data */
      __skb_pull(skb, radiotap_len);
  
      /* report the AMPDU-EOF bit on single frames */
      if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
          rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
          rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
          if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF)) {
              rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
          }
      }
  
      if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) {
          iwl_mvm_decode_he_phy_data(mvm, phy_data, he, he_mu, rx_status, rate_n_flags, queue);
      }
  
      /* update aggregation data for monitor sake on default queue */
      if (!queue && (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) && (phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
          bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
  
          /* toggle is switched whenever new aggregation starts */
          if (toggle_bit != mvm->ampdu_toggle) {
              rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
              if (phy_data->d0 & cpu_to_le32(IWL_RX_PHY_DATA0_HE_DELIM_EOF)) {
                  rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
              }
          }
      }
  
      if (he_type == RATE_MCS_HE_TYPE_EXT_SU && rate_n_flags & RATE_MCS_HE_106T_MSK) {
          rx_status->bw = RATE_INFO_BW_HE_RU;
          rx_status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106;
      }
  
      /* actually data is filled in mac80211 */
      if (he_type == RATE_MCS_HE_TYPE_SU || he_type == RATE_MCS_HE_TYPE_EXT_SU) {
          he->data1 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
      }
  
      stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> RATE_MCS_STBC_POS;
      rx_status->nss = ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >> RATE_VHT_MCS_NSS_POS) + 1;
      rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
      rx_status->encoding = RX_ENC_HE;
      rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
      if (rate_n_flags & RATE_MCS_BF_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_BF; }
  
      rx_status->he_dcm = !!(rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK);
  
  #define CHECK_TYPE(F)                                      \
      BUILD_BUG_ON(IEEE80211_RADIOTAP_HE_DATA1_FORMAT_##F != \
                   (RATE_MCS_HE_TYPE_##F >> RATE_MCS_HE_TYPE_POS))
  
      CHECK_TYPE(SU);
      CHECK_TYPE(EXT_SU);
      CHECK_TYPE(MU);
      CHECK_TYPE(TRIG);
  
      he->data1 |= cpu_to_le16(he_type >> RATE_MCS_HE_TYPE_POS);
  
      if (rate_n_flags & RATE_MCS_BF_MSK) {
          he->data5 |= cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA5_TXBF);
      }
  
      switch ((rate_n_flags & RATE_MCS_HE_GI_LTF_MSK) >> RATE_MCS_HE_GI_LTF_POS) {
      case 0:
          if (he_type == RATE_MCS_HE_TYPE_TRIG) {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
          } else {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
          }
          if (he_type == RATE_MCS_HE_TYPE_MU) {
              ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
          } else {
              ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X;
          }
          break;
      case 1:
          if (he_type == RATE_MCS_HE_TYPE_TRIG) {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
          } else {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
          }
          ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
          break;
      case 2:
          if (he_type == RATE_MCS_HE_TYPE_TRIG) {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
              ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
          } else {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
              ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X;
          }
          break;
      case 3:
          if ((he_type == RATE_MCS_HE_TYPE_SU || he_type == RATE_MCS_HE_TYPE_EXT_SU) &&
              rate_n_flags & RATE_MCS_SGI_MSK) {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
          } else {
              rx_status->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
          }
          ltf = IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X;
          break;
      }
  
      he->data5 |= le16_encode_bits(ltf, IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE);
  }
  
  static void iwl_mvm_decode_lsig(struct sk_buff* skb, struct iwl_mvm_rx_phy_data* phy_data) {
      struct ieee80211_rx_status* rx_status = IEEE80211_SKB_RXCB(skb);
      struct ieee80211_radiotap_lsig* lsig;
  
      switch (phy_data->info_type) {
      case IWL_RX_PHY_INFO_TYPE_HT:
      case IWL_RX_PHY_INFO_TYPE_VHT_SU:
      case IWL_RX_PHY_INFO_TYPE_VHT_MU:
      case IWL_RX_PHY_INFO_TYPE_HE_TB_EXT:
      case IWL_RX_PHY_INFO_TYPE_HE_SU:
      case IWL_RX_PHY_INFO_TYPE_HE_MU:
      case IWL_RX_PHY_INFO_TYPE_HE_MU_EXT:
      case IWL_RX_PHY_INFO_TYPE_HE_TB:
          lsig = skb_put(skb, sizeof(*lsig));
          lsig->data1 = cpu_to_le16(IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN);
          lsig->data2 = le16_encode_bits(le32_get_bits(phy_data->d1, IWL_RX_PHY_DATA1_LSIG_LEN_MASK),
                                         IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH);
          rx_status->flag |= RX_FLAG_RADIOTAP_LSIG;
          break;
      default:
          break;
      }
  }
  #endif  // NEEDS_PORTING
  
  void iwl_mvm_rx_mpdu_mq(struct iwl_mvm* mvm, struct napi_struct* napi,
                          struct iwl_rx_cmd_buffer* rxb, int queue) {
  #if 0   // NEEDS_PORTING
      struct ieee80211_rx_status* rx_status;
      struct iwl_rx_packet* pkt = rxb_addr(rxb);
      struct iwl_rx_mpdu_desc* desc = (void*)pkt->data;
      struct ieee80211_hdr* hdr;
      uint32_t len = le16_to_cpu(desc->mpdu_len);
      uint32_t rate_n_flags, gp2_on_air_rise;
      uint16_t phy_info = le16_to_cpu(desc->phy_info);
      struct ieee80211_sta* sta = NULL;
      struct sk_buff* skb;
      uint8_t crypt_len = 0, channel, energy_a, energy_b;
      size_t desc_size;
      struct iwl_mvm_rx_phy_data phy_data = {
          .d4 = desc->phy_data4,
          .info_type = IWL_RX_PHY_INFO_TYPE_NONE,
      };
  
      if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) { return; }
  
      if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) {
          rate_n_flags = le32_to_cpu(desc->v3.rate_n_flags);
          channel = desc->v3.channel;
          gp2_on_air_rise = le32_to_cpu(desc->v3.gp2_on_air_rise);
          energy_a = desc->v3.energy_a;
          energy_b = desc->v3.energy_b;
          desc_size = sizeof(*desc);
  
          phy_data.d0 = desc->v3.phy_data0;
          phy_data.d1 = desc->v3.phy_data1;
          phy_data.d2 = desc->v3.phy_data2;
          phy_data.d3 = desc->v3.phy_data3;
      } else {
          rate_n_flags = le32_to_cpu(desc->v1.rate_n_flags);
          channel = desc->v1.channel;
          gp2_on_air_rise = le32_to_cpu(desc->v1.gp2_on_air_rise);
          energy_a = desc->v1.energy_a;
          energy_b = desc->v1.energy_b;
          desc_size = IWL_RX_DESC_SIZE_V1;
  
          phy_data.d0 = desc->v1.phy_data0;
          phy_data.d1 = desc->v1.phy_data1;
          phy_data.d2 = desc->v1.phy_data2;
          phy_data.d3 = desc->v1.phy_data3;
      }
  
      if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) {
          phy_data.info_type = le32_get_bits(phy_data.d1, IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
      }
  
      hdr = (void*)(pkt->data + desc_size);
      /* Dont use dev_alloc_skb(), we'll have enough headroom once
       * ieee80211_hdr pulled.
       */
      skb = alloc_skb(128, GFP_ATOMIC);
      if (!skb) {
          IWL_ERR(mvm, "alloc_skb failed\n");
          return;
      }
  
      if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
          /*
           * If the device inserted padding it means that (it thought)
           * the 802.11 header wasn't a multiple of 4 bytes long. In
           * this case, reserve two bytes at the start of the SKB to
           * align the payload properly in case we end up copying it.
           */
          skb_reserve(skb, 2);
      }
  
      rx_status = IEEE80211_SKB_RXCB(skb);
  
      /* This may be overridden by iwl_mvm_rx_he() to HE_RU */
      switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
      case RATE_MCS_CHAN_WIDTH_20:
          break;
      case RATE_MCS_CHAN_WIDTH_40:
          rx_status->bw = RATE_INFO_BW_40;
          break;
      case RATE_MCS_CHAN_WIDTH_80:
          rx_status->bw = RATE_INFO_BW_80;
          break;
      case RATE_MCS_CHAN_WIDTH_160:
          rx_status->bw = RATE_INFO_BW_160;
          break;
      }
  
      if (rate_n_flags & RATE_MCS_HE_MSK) {
          iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags, phy_info, queue);
      }
  
      iwl_mvm_decode_lsig(skb, &phy_data);
  
      if (iwl_mvm_rx_crypto(mvm, hdr, rx_status, phy_info, desc, le32_to_cpu(pkt->len_n_flags), queue,
                            &crypt_len)) {
          kfree_skb(skb);
          return;
      }
  
      /*
       * Keep packets with CRC errors (and with overrun) for monitor mode
       * (otherwise the firmware discards them) but mark them as bad.
       */
      if (!(desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_CRC_OK)) ||
          !(desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_OVERRUN_OK))) {
          IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", le16_to_cpu(desc->status));
          rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
      }
      /* set the preamble flag if appropriate */
      if (rate_n_flags & RATE_MCS_CCK_MSK && phy_info & IWL_RX_MPDU_PHY_SHORT_PREAMBLE) {
          rx_status->enc_flags |= RX_ENC_FLAG_SHORTPRE;
      }
  
      if (likely(!(phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD))) {
          uint64_t tsf_on_air_rise;
  
          if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560) {
              tsf_on_air_rise = le64_to_cpu(desc->v3.tsf_on_air_rise);
          } else {
              tsf_on_air_rise = le64_to_cpu(desc->v1.tsf_on_air_rise);
          }
  
          rx_status->mactime = tsf_on_air_rise;
          /* TSF as indicated by the firmware is at INA time */
          rx_status->flag |= RX_FLAG_MACTIME_PLCP_START;
      }
  
      rx_status->device_timestamp = gp2_on_air_rise;
      rx_status->band = channel > 14 ? NL80211_BAND_5GHZ : NL80211_BAND_2GHZ;
      rx_status->freq = ieee80211_channel_to_frequency(channel, rx_status->band);
      iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, energy_a, energy_b);
  
      /* update aggregation data for monitor sake on default queue */
      if (!queue && (phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
          bool toggle_bit = phy_info & IWL_RX_MPDU_PHY_AMPDU_TOGGLE;
  
          rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
          rx_status->ampdu_reference = mvm->ampdu_ref;
          /* toggle is switched whenever new aggregation starts */
          if (toggle_bit != mvm->ampdu_toggle) {
              mvm->ampdu_ref++;
              mvm->ampdu_toggle = toggle_bit;
          }
      }
  
      rcu_read_lock();
  
      if (desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {
          uint8_t id = desc->sta_id_flags & IWL_RX_MPDU_SIF_STA_ID_MASK;
  
          if (!WARN_ON_ONCE(id >= ARRAY_SIZE(mvm->fw_id_to_mac_id))) {
              sta = rcu_dereference(mvm->fw_id_to_mac_id[id]);
              if (IS_ERR(sta)) { sta = NULL; }
          }
      } else if (!is_multicast_ether_addr(hdr->addr2)) {
          /*
           * This is fine since we prevent two stations with the same
           * address from being added.
           */
          sta = ieee80211_find_sta_by_ifaddr(mvm->hw, hdr->addr2, NULL);
      }
  
      if (sta) {
          struct iwl_mvm_sta* mvmsta = iwl_mvm_sta_from_mac80211(sta);
          struct ieee80211_vif* tx_blocked_vif = rcu_dereference(mvm->csa_tx_blocked_vif);
          uint8_t baid =
              (uint8_t)((le32_to_cpu(desc->reorder_data) & IWL_RX_MPDU_REORDER_BAID_MASK) >>
                        IWL_RX_MPDU_REORDER_BAID_SHIFT);
          struct iwl_fw_dbg_trigger_tlv* trig;
          struct ieee80211_vif* vif = mvmsta->vif;
  
          if (!mvm->tcm.paused && len >= sizeof(*hdr) && !is_multicast_ether_addr(hdr->addr1) &&
              ieee80211_is_data(hdr->frame_control) &&
              time_after(jiffies, mvm->tcm.ts + MVM_TCM_PERIOD)) {
              schedule_delayed_work(&mvm->tcm.work, 0);
          }
  
          /*
           * We have tx blocked stations (with CS bit). If we heard
           * frames from a blocked station on a new channel we can
           * TX to it again.
           */
          if (unlikely(tx_blocked_vif) && tx_blocked_vif == vif) {
              struct iwl_mvm_vif* mvmvif = iwl_mvm_vif_from_mac80211(tx_blocked_vif);
  
              if (mvmvif->csa_target_freq == rx_status->freq) {
                  iwl_mvm_sta_modify_disable_tx_ap(mvm, sta, false);
              }
          }
  
          rs_update_last_rssi(mvm, mvmsta, rx_status);
  
          trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif), FW_DBG_TRIGGER_RSSI);
  
          if (trig && ieee80211_is_beacon(hdr->frame_control)) {
              struct iwl_fw_dbg_trigger_low_rssi* rssi_trig;
              int32_t rssi;
  
              rssi_trig = (void*)trig->data;
              rssi = le32_to_cpu(rssi_trig->rssi);
  
              if (rx_status->signal < rssi) { iwl_fw_dbg_collect_trig(&mvm->fwrt, trig, NULL); }
          }
  
          if (ieee80211_is_data(hdr->frame_control)) { iwl_mvm_rx_csum(sta, skb, desc); }
  
  #ifdef CPTCFG_IWLMVM_TDLS_PEER_CACHE
          /*
           * these packets are from the AP or the existing TDLS peer.
           * In both cases an existing station.
           */
          iwl_mvm_tdls_peer_cache_pkt(mvm, hdr, len, queue);
  #endif /* CPTCFG_IWLMVM_TDLS_PEER_CACHE */
  
          if (iwl_mvm_is_dup(sta, queue, rx_status, hdr, desc)) {
              kfree_skb(skb);
              goto out;
          }
  
          /*
           * Our hardware de-aggregates AMSDUs but copies the mac header
           * as it to the de-aggregated MPDUs. We need to turn off the
           * AMSDU bit in the QoS control ourselves.
           * In addition, HW reverses addr3 and addr4 - reverse it back.
           */
          if ((desc->mac_flags2 & IWL_RX_MPDU_MFLG2_AMSDU) &&
              !WARN_ON(!ieee80211_is_data_qos(hdr->frame_control))) {
              uint8_t* qc = ieee80211_get_qos_ctl(hdr);
  
              *qc &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
  
              if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_9000) {
                  iwl_mvm_flip_address(hdr->addr3);
  
                  if (ieee80211_has_a4(hdr->frame_control)) { iwl_mvm_flip_address(hdr->addr4); }
              }
          }
          if (baid != IWL_RX_REORDER_DATA_INVALID_BAID) {
              uint32_t reorder_data = le32_to_cpu(desc->reorder_data);
  
              iwl_mvm_agg_rx_received(mvm, reorder_data, baid);
          }
      }
  
      if (!(rate_n_flags & RATE_MCS_CCK_MSK) && rate_n_flags & RATE_MCS_SGI_MSK) {
          rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
      }
      if (rate_n_flags & RATE_HT_MCS_GF_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_HT_GF; }
      if (rate_n_flags & RATE_MCS_LDPC_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_LDPC; }
      if (rate_n_flags & RATE_MCS_HT_MSK) {
          uint8_t stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> RATE_MCS_STBC_POS;
          rx_status->encoding = RX_ENC_HT;
          rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
          rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
      } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
          uint8_t stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> RATE_MCS_STBC_POS;
          rx_status->nss = ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >> RATE_VHT_MCS_NSS_POS) + 1;
          rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
          rx_status->encoding = RX_ENC_VHT;
          rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
          if (rate_n_flags & RATE_MCS_BF_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_BF; }
      } else if (!(rate_n_flags & RATE_MCS_HE_MSK)) {
          int rate = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags, rx_status->band);
  
          if (WARN(rate < 0 || rate > 0xFF, "Invalid rate flags 0x%x, band %d,\n", rate_n_flags,
                   rx_status->band)) {
              kfree_skb(skb);
              goto out;
          }
          rx_status->rate_idx = rate;
      }
  
      /* management stuff on default queue */
      if (!queue) {
          if (unlikely((ieee80211_is_beacon(hdr->frame_control) ||
                        ieee80211_is_probe_resp(hdr->frame_control)) &&
                       mvm->sched_scan_pass_all == SCHED_SCAN_PASS_ALL_ENABLED)) {
              mvm->sched_scan_pass_all = SCHED_SCAN_PASS_ALL_FOUND;
          }
  
          if (unlikely(ieee80211_is_beacon(hdr->frame_control) ||
                       ieee80211_is_probe_resp(hdr->frame_control))) {
              rx_status->boottime_ns = ktime_get_boot_ns();
          }
      }
  
      iwl_mvm_create_skb(skb, hdr, len, crypt_len, rxb);
      if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc)) {
          iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue, sta);
      }
  out:
      rcu_read_unlock();
  #endif  // NEEDS_PORTING
  }
  
  void iwl_mvm_rx_monitor_ndp(struct iwl_mvm* mvm, struct napi_struct* napi,
                              struct iwl_rx_cmd_buffer* rxb, int queue) {
  #if 0   // NEEDS_PORTING
      struct ieee80211_rx_status* rx_status;
      struct iwl_rx_packet* pkt = rxb_addr(rxb);
      struct iwl_rx_no_data* desc = (void*)pkt->data;
      uint32_t rate_n_flags = le32_to_cpu(desc->rate);
      uint32_t gp2_on_air_rise = le32_to_cpu(desc->on_air_rise_time);
      uint32_t rssi = le32_to_cpu(desc->rssi);
      uint32_t info_type = le32_to_cpu(desc->info) & RX_NO_DATA_INFO_TYPE_MSK;
      uint16_t phy_info = IWL_RX_MPDU_PHY_TSF_OVERLOAD;
      struct ieee80211_sta* sta = NULL;
      struct sk_buff* skb;
      uint8_t channel, energy_a, energy_b;
      struct iwl_mvm_rx_phy_data phy_data = {
          .d0 = desc->phy_info[0],
          .info_type = IWL_RX_PHY_INFO_TYPE_NONE,
      };
  
      if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) { return; }
  
      /* Currently only NDP type is supported */
      if (info_type != RX_NO_DATA_INFO_TYPE_NDP) { return; }
  
      energy_a = (rssi & RX_NO_DATA_CHAIN_A_MSK) >> RX_NO_DATA_CHAIN_A_POS;
      energy_b = (rssi & RX_NO_DATA_CHAIN_B_MSK) >> RX_NO_DATA_CHAIN_B_POS;
      channel = (rssi & RX_NO_DATA_CHANNEL_MSK) >> RX_NO_DATA_CHANNEL_POS;
  
      phy_data.info_type = le32_get_bits(desc->phy_info[1], IWL_RX_PHY_DATA1_INFO_TYPE_MASK);
  
      /* Dont use dev_alloc_skb(), we'll have enough headroom once
       * ieee80211_hdr pulled.
       */
      skb = alloc_skb(128, GFP_ATOMIC);
      if (!skb) {
          IWL_ERR(mvm, "alloc_skb failed\n");
          return;
      }
  
      rx_status = IEEE80211_SKB_RXCB(skb);
  
      /* 0-length PSDU */
      rx_status->flag |= RX_FLAG_NO_PSDU;
      /* currently this is the only type for which we get this notif */
      rx_status->zero_length_psdu_type = IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING;
  
      /* This may be overridden by iwl_mvm_rx_he() to HE_RU */
      switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
      case RATE_MCS_CHAN_WIDTH_20:
          break;
      case RATE_MCS_CHAN_WIDTH_40:
          rx_status->bw = RATE_INFO_BW_40;
          break;
      case RATE_MCS_CHAN_WIDTH_80:
          rx_status->bw = RATE_INFO_BW_80;
          break;
      case RATE_MCS_CHAN_WIDTH_160:
          rx_status->bw = RATE_INFO_BW_160;
          break;
      }
  
      if (rate_n_flags & RATE_MCS_HE_MSK) {
          iwl_mvm_rx_he(mvm, skb, &phy_data, rate_n_flags, phy_info, queue);
      }
  
      iwl_mvm_decode_lsig(skb, &phy_data);
  
      rx_status->device_timestamp = gp2_on_air_rise;
      rx_status->band = channel > 14 ? NL80211_BAND_5GHZ : NL80211_BAND_2GHZ;
      rx_status->freq = ieee80211_channel_to_frequency(channel, rx_status->band);
      iwl_mvm_get_signal_strength(mvm, rx_status, rate_n_flags, energy_a, energy_b);
  
      rcu_read_lock();
  
      if (!(rate_n_flags & RATE_MCS_CCK_MSK) && rate_n_flags & RATE_MCS_SGI_MSK) {
          rx_status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
      }
      if (rate_n_flags & RATE_HT_MCS_GF_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_HT_GF; }
      if (rate_n_flags & RATE_MCS_LDPC_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_LDPC; }
      if (rate_n_flags & RATE_MCS_HT_MSK) {
          uint8_t stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> RATE_MCS_STBC_POS;
          rx_status->encoding = RX_ENC_HT;
          rx_status->rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK;
          rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
      } else if (rate_n_flags & RATE_MCS_VHT_MSK) {
          uint8_t stbc = (rate_n_flags & RATE_MCS_STBC_MSK) >> RATE_MCS_STBC_POS;
          rx_status->rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
          rx_status->encoding = RX_ENC_VHT;
          rx_status->enc_flags |= stbc << RX_ENC_FLAG_STBC_SHIFT;
          if (rate_n_flags & RATE_MCS_BF_MSK) { rx_status->enc_flags |= RX_ENC_FLAG_BF; }
          /*
           * take the nss from the rx_vec since the rate_n_flags has
           * only 2 bits for the nss which gives a max of 4 ss but
           * there may be up to 8 spatial streams
           */
          rx_status->nss = le32_get_bits(desc->rx_vec[0], RX_NO_DATA_RX_VEC0_VHT_NSTS_MSK) + 1;
      } else if (rate_n_flags & RATE_MCS_HE_MSK) {
          rx_status->nss = le32_get_bits(desc->rx_vec[0], RX_NO_DATA_RX_VEC0_HE_NSTS_MSK) + 1;
      } else {
          int rate = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags, rx_status->band);
  
          if (WARN(rate < 0 || rate > 0xFF, "Invalid rate flags 0x%x, band %d,\n", rate_n_flags,
                   rx_status->band)) {
              kfree_skb(skb);
              goto out;
          }
          rx_status->rate_idx = rate;
      }
  
      iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue, sta);
  out:
      rcu_read_unlock();
  #endif  // NEEDS_PORTING
  }
  
  void iwl_mvm_rx_frame_release(struct iwl_mvm* mvm, struct napi_struct* napi,
                                struct iwl_rx_cmd_buffer* rxb, int queue) {
  #if 0   // NEEDS_PORTING
      struct iwl_rx_packet* pkt = rxb_addr(rxb);
      struct iwl_frame_release* release = (void*)pkt->data;
      struct ieee80211_sta* sta;
      struct iwl_mvm_reorder_buffer* reorder_buf;
      struct iwl_mvm_baid_data* ba_data;
  
      int baid = release->baid;
  
      IWL_DEBUG_HT(mvm, "Frame release notification for BAID %u, NSSN %d\n", release->baid,
                   le16_to_cpu(release->nssn));
  
      if (WARN_ON_ONCE(baid == IWL_RX_REORDER_DATA_INVALID_BAID)) { return; }
  
      rcu_read_lock();
  
      ba_data = rcu_dereference(mvm->baid_map[baid]);
      if (WARN_ON_ONCE(!ba_data)) { goto out; }
  
      sta = rcu_dereference(mvm->fw_id_to_mac_id[ba_data->sta_id]);
      if (WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { goto out; }
  
      reorder_buf = &ba_data->reorder_buf[queue];
  
      spin_lock_bh(&reorder_buf->lock);
      iwl_mvm_release_frames(mvm, sta, napi, ba_data, reorder_buf, le16_to_cpu(release->nssn));
      spin_unlock_bh(&reorder_buf->lock);
  
  out:
      rcu_read_unlock();
  #endif  // NEEDS_PORTING
  }
  