Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1518 insertions, 0 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
new file mode 100644
index 000000000..9a4848d69
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -0,0 +1,1518 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * 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
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * 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 <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include "iwl-trans.h"
+#include "mvm.h"
+#include "fw-api.h"
+
+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;
+	u8 tid, keyidx;
+	u8 pn[IEEE80211_CCMP_PN_LEN];
+	u8 *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 = (u8 *)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 int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
+			      struct ieee80211_hdr *hdr, u16 len, u8 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);
+	u8 mic_crc_len = u8_get_bits(desc->mac_flags1,
+				     IWL_RX_MPDU_MFLG1_MIC_CRC_LEN_MASK) << 1;
+
+	if (desc->mac_flags2 & IWL_RX_MPDU_MFLG2_PAD) {
+		len -= 2;
+		pad_len = 2;
+	}
+
+	/*
+	 * For non monitor interface strip the bytes the RADA might not have
+	 * removed. As monitor interface cannot exist with other interfaces
+	 * this removal is safe.
+	 */
+	if (mic_crc_len && !ieee80211_hw_check(mvm->hw, RX_INCLUDES_FCS)) {
+		u32 pkt_flags = le32_to_cpu(pkt->len_n_flags);
+
+		/*
+		 * If RADA was not enabled then decryption was not performed so
+		 * the MIC cannot be removed.
+		 */
+		if (!(pkt_flags & FH_RSCSR_RADA_EN)) {
+			if (WARN_ON(crypt_len > mic_crc_len))
+				return -EINVAL;
+
+			mic_crc_len -= crypt_len;
+		}
+
+		if (WARN_ON(mic_crc_len > len))
+			return -EINVAL;
+
+		len -= mic_crc_len;
+	}
+
+	/* 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;
+
+	if (WARN_ONCE(headlen < hdrlen,
+		      "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
+		      hdrlen, len, crypt_len)) {
+		/*
+		 * We warn and trace because we want to be able to see
+		 * it in trace-cmd as well.
+		 */
+		IWL_DEBUG_RX(mvm,
+			     "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
+			     hdrlen, len, crypt_len);
+		return -EINVAL;
+	}
+
+	skb_put_data(skb, hdr, hdrlen);
+	skb_put_data(skb, (u8 *)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);
+	}
+
+	return 0;
+}
+
+/* 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,
+					u32 rate_n_flags, int energy_a,
+					int energy_b)
+{
+	int max_energy;
+	u32 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, u16 phy_info,
+			     struct iwl_rx_mpdu_desc *desc,
+			     u32 pkt_flags, int queue, u8 *crypt_len)
+{
+	u16 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;
+
+		*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;
+
+		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);
+	u16 flags = le16_to_cpu(desc->l3l4_flags);
+	u8 l3_prot = (u8)((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;
+	u8 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, u32 rxq_mask,
+			    const u8 *data, u32 count)
+{
+	struct iwl_rxq_sync_cmd *cmd;
+	u32 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(u16 sn1, u16 sn2, u16 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,
+				   u16 nssn)
+{
+	struct iwl_mvm_reorder_buf_entry *entries =
+		&baid_data->entries[reorder_buf->queue *
+				    baid_data->entries_per_queue];
+	u16 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) {
+		u16 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;
+	u16 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;
+		u8 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;
+	u8 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();
+}
+
+void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
+			    int queue)
+{
+	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);
+}
+
+/*
+ * 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;
+	u32 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;
+	u8 tid = ieee80211_get_tid(hdr);
+	u8 sub_frame_idx = desc->amsdu_info &
+			   IWL_RX_MPDU_AMSDU_SUBFRAME_IDX_MASK;
+	struct iwl_mvm_reorder_buf_entry *entries;
+	int index;
+	u16 nssn, sn;
+	u8 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)) {
+		u16 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,
+				    u32 reorder_data, u8 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(u8 *addr)
+{
+	int i;
+	u8 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);
+}
+
+void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
+			struct iwl_rx_cmd_buffer *rxb, int queue)
+{
+	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;
+	u32 len = le16_to_cpu(desc->mpdu_len);
+	u32 rate_n_flags, gp2_on_air_rise;
+	u16 phy_info = le16_to_cpu(desc->phy_info);
+	struct ieee80211_sta *sta = NULL;
+	struct sk_buff *skb;
+	u8 crypt_len = 0, channel, energy_a, energy_b;
+	struct ieee80211_radiotap_he *he = NULL;
+	struct ieee80211_radiotap_he_mu *he_mu = NULL;
+	u32 he_type = 0xffffffff;
+	/* this is invalid e.g. because puncture type doesn't allow 0b11 */
+#define HE_PHY_DATA_INVAL ((u64)-1)
+	u64 he_phy_data = HE_PHY_DATA_INVAL;
+	size_t desc_size;
+
+	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);
+	} 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;
+	}
+
+	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);
+
+	if (rate_n_flags & RATE_MCS_HE_MSK) {
+		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),
+		};
+		unsigned int radiotap_len = 0;
+
+		he = skb_put_data(skb, &known, sizeof(known));
+		radiotap_len += sizeof(known);
+		rx_status->flag |= RX_FLAG_RADIOTAP_HE;
+
+		he_type = rate_n_flags & RATE_MCS_HE_TYPE_MSK;
+
+		if (phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD) {
+			if (mvm->trans->cfg->device_family >=
+			    IWL_DEVICE_FAMILY_22560)
+				he_phy_data = le64_to_cpu(desc->v3.he_phy_data);
+			else
+				he_phy_data = le64_to_cpu(desc->v1.he_phy_data);
+
+			if (he_type == RATE_MCS_HE_TYPE_MU) {
+				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);
+	}
+
+	rx_status = IEEE80211_SKB_RXCB(skb);
+
+	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 (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))) {
+		u64 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;
+	} else if (he_type == RATE_MCS_HE_TYPE_SU) {
+		u64 he_phy_data;
+
+		if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560)
+			he_phy_data = le64_to_cpu(desc->v3.he_phy_data);
+		else
+			he_phy_data = le64_to_cpu(desc->v1.he_phy_data);
+
+		he->data1 |=
+			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN);
+		if (FIELD_GET(IWL_RX_HE_PHY_UPLINK,
+			      he_phy_data))
+			he->data3 |=
+				cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA3_UL_DL);
+
+		if (!queue && !(phy_info & IWL_RX_MPDU_PHY_AMPDU)) {
+			rx_status->ampdu_reference = mvm->ampdu_ref;
+			mvm->ampdu_ref++;
+
+			rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
+			rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
+			if (FIELD_GET(IWL_RX_HE_PHY_DELIM_EOF,
+				      he_phy_data))
+				rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT;
+		}
+	} else if (he_mu && he_phy_data != HE_PHY_DATA_INVAL) {
+		he_mu->flags1 |=
+			le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIBG_SYM_OR_USER_NUM_MASK,
+						   he_phy_data),
+					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS);
+		he_mu->flags1 |=
+			le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIGB_DCM,
+						   he_phy_data),
+					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM);
+		he_mu->flags1 |=
+			le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIGB_MCS_MASK,
+						   he_phy_data),
+					 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS);
+		he_mu->flags2 |=
+			le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIGB_COMPRESSION,
+						   he_phy_data),
+					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP);
+		he_mu->flags2 |=
+			le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_PREAMBLE_PUNC_TYPE_MASK,
+						   he_phy_data),
+					 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW);
+	}
+	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;
+		u64 he_phy_data;
+
+		if (mvm->trans->cfg->device_family >= IWL_DEVICE_FAMILY_22560)
+			he_phy_data = le64_to_cpu(desc->v3.he_phy_data);
+		else
+			he_phy_data = le64_to_cpu(desc->v1.he_phy_data);
+
+		rx_status->flag |= RX_FLAG_AMPDU_DETAILS;
+		/* toggle is switched whenever new aggregation starts */
+		if (toggle_bit != mvm->ampdu_toggle) {
+			mvm->ampdu_ref++;
+			mvm->ampdu_toggle = toggle_bit;
+
+			if (he_phy_data != HE_PHY_DATA_INVAL &&
+			    he_type == RATE_MCS_HE_TYPE_MU) {
+				rx_status->flag |= RX_FLAG_AMPDU_EOF_BIT_KNOWN;
+				if (FIELD_GET(IWL_RX_HE_PHY_DELIM_EOF,
+					      he_phy_data))
+					rx_status->flag |=
+						RX_FLAG_AMPDU_EOF_BIT;
+			}
+		}
+		rx_status->ampdu_reference = mvm->ampdu_ref;
+	}
+
+	rcu_read_lock();
+
+	if (desc->status & cpu_to_le16(IWL_RX_MPDU_STATUS_SRC_STA_FOUND)) {
+		u8 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);
+		u8 baid = (u8)((le32_to_cpu(desc->reorder_data) &
+			       IWL_RX_MPDU_REORDER_BAID_MASK) >>
+			       IWL_RX_MPDU_REORDER_BAID_SHIFT);
+
+		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 == mvmsta->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);
+
+		if (iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_RSSI) &&
+		    ieee80211_is_beacon(hdr->frame_control)) {
+			struct iwl_fw_dbg_trigger_tlv *trig;
+			struct iwl_fw_dbg_trigger_low_rssi *rssi_trig;
+			bool trig_check;
+			s32 rssi;
+
+			trig = iwl_fw_dbg_get_trigger(mvm->fw,
+						      FW_DBG_TRIGGER_RSSI);
+			rssi_trig = (void *)trig->data;
+			rssi = le32_to_cpu(rssi_trig->rssi);
+
+			trig_check =
+				iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
+							      ieee80211_vif_to_wdev(mvmsta->vif),
+							      trig);
+			if (trig_check && 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);
+
+		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))) {
+			u8 *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) {
+			u32 reorder_data = le32_to_cpu(desc->reorder_data);
+
+			iwl_mvm_agg_rx_received(mvm, reorder_data, baid);
+		}
+	}
+
+	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 (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;
+	}
+
+	if (rate_n_flags & RATE_MCS_HE_MSK &&
+	    phy_info & IWL_RX_MPDU_PHY_TSF_OVERLOAD &&
+	    he_type == RATE_MCS_HE_TYPE_MU) {
+		/*
+		 * 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_mu pointer,
+		 * i.e. we don't have the 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, I think.
+		 */
+		u8 ru = FIELD_GET(IWL_RX_HE_PHY_RU_ALLOC_MASK, he_phy_data);
+		u8 offs = 0;
+
+		rx_status->bw = RATE_INFO_BW_HE_RU;
+
+		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);
+		if (he_phy_data & IWL_RX_HE_PHY_RU_ALLOC_SEC80)
+			he->data2 |=
+				cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC);
+	} else if (he) {
+		he->data1 |=
+			cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN);
+	}
+
+	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) {
+		u8 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) {
+		u8 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 (he) {
+		u8 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_POS)
+			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:
+			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
+			break;
+		case 1:
+			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
+			break;
+		case 2:
+			rx_status->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
+			break;
+		case 3:
+			if (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;
+			break;
+		}
+
+		switch (he_type) {
+		case RATE_MCS_HE_TYPE_SU: {
+			u16 val;
+
+			/* LTF syms correspond to streams */
+			he->data2 |=
+				cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);
+			switch (rx_status->nss) {
+			case 1:
+				val = 0;
+				break;
+			case 2:
+				val = 1;
+				break;
+			case 3:
+			case 4:
+				val = 2;
+				break;
+			case 5:
+			case 6:
+				val = 3;
+				break;
+			case 7:
+			case 8:
+				val = 4;
+				break;
+			default:
+				WARN_ONCE(1, "invalid nss: %d\n",
+					  rx_status->nss);
+				val = 0;
+			}
+			he->data5 |=
+				le16_encode_bits(val,
+						 IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS);
+			}
+			break;
+		case RATE_MCS_HE_TYPE_MU: {
+			u16 val;
+			u64 he_phy_data;
+
+			if (mvm->trans->cfg->device_family >=
+			    IWL_DEVICE_FAMILY_22560)
+				he_phy_data = le64_to_cpu(desc->v3.he_phy_data);
+			else
+				he_phy_data = le64_to_cpu(desc->v1.he_phy_data);
+
+			if (he_phy_data == HE_PHY_DATA_INVAL)
+				break;
+
+			val = FIELD_GET(IWL_RX_HE_PHY_HE_LTF_NUM_MASK,
+					he_phy_data);
+
+			he->data2 |=
+				cpu_to_le16(IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN);
+			he->data5 |=
+				cpu_to_le16(FIELD_PREP(
+					IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS,
+					val));
+			}
+			break;
+		case RATE_MCS_HE_TYPE_EXT_SU:
+		case RATE_MCS_HE_TYPE_TRIG:
+			/* not supported yet */
+			break;
+		}
+	} 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;
+
+	}
+
+	/* 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();
+	}
+
+	if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) {
+		kfree_skb(skb);
+		goto out;
+	}
+
+	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();
+}
+
+void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
+			      struct iwl_rx_cmd_buffer *rxb, int queue)
+{
+	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();
+}