Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Add Maglev hashing scheduler to IPVS, from Inju Song.

 2) Lots of new TC subsystem tests from Roman Mashak.

 3) Add TCP zero copy receive and fix delayed acks and autotuning with
    SO_RCVLOWAT, from Eric Dumazet.

 4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
    Brouer.

 5) Add ttl inherit support to vxlan, from Hangbin Liu.

 6) Properly separate ipv6 routes into their logically independant
    components. fib6_info for the routing table, and fib6_nh for sets of
    nexthops, which thus can be shared. From David Ahern.

 7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
    messages from XDP programs. From Nikita V. Shirokov.

 8) Lots of long overdue cleanups to the r8169 driver, from Heiner
    Kallweit.

 9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.

10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.

11) Plumb extack down into fib_rules, from Roopa Prabhu.

12) Add Flower classifier offload support to igb, from Vinicius Costa
    Gomes.

13) Add UDP GSO support, from Willem de Bruijn.

14) Add documentation for eBPF helpers, from Quentin Monnet.

15) Add TLS tx offload to mlx5, from Ilya Lesokhin.

16) Allow applications to be given the number of bytes available to read
    on a socket via a control message returned from recvmsg(), from
    Soheil Hassas Yeganeh.

17) Add x86_32 eBPF JIT compiler, from Wang YanQing.

18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
    From Björn Töpel.

19) Remove indirect load support from all of the BPF JITs and handle
    these operations in the verifier by translating them into native BPF
    instead. From Daniel Borkmann.

20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.

21) Allow XDP programs to do lookups in the main kernel routing tables
    for forwarding. From David Ahern.

22) Allow drivers to store hardware state into an ELF section of kernel
    dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.

23) Various RACK and loss detection improvements in TCP, from Yuchung
    Cheng.

24) Add TCP SACK compression, from Eric Dumazet.

25) Add User Mode Helper support and basic bpfilter infrastructure, from
    Alexei Starovoitov.

26) Support ports and protocol values in RTM_GETROUTE, from Roopa
    Prabhu.

27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
    Brouer.

28) Add lots of forwarding selftests, from Petr Machata.

29) Add generic network device failover driver, from Sridhar Samudrala.

* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
  strparser: Add __strp_unpause and use it in ktls.
  rxrpc: Fix terminal retransmission connection ID to include the channel
  net: hns3: Optimize PF CMDQ interrupt switching process
  net: hns3: Fix for VF mailbox receiving unknown message
  net: hns3: Fix for VF mailbox cannot receiving PF response
  bnx2x: use the right constant
  Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
  net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
  enic: fix UDP rss bits
  netdev-FAQ: clarify DaveM's position for stable backports
  rtnetlink: validate attributes in do_setlink()
  mlxsw: Add extack messages for port_{un, }split failures
  netdevsim: Add extack error message for devlink reload
  devlink: Add extack to reload and port_{un, }split operations
  net: metrics: add proper netlink validation
  ipmr: fix error path when ipmr_new_table fails
  ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
  net: hns3: remove unused hclgevf_cfg_func_mta_filter
  netfilter: provide udp*_lib_lookup for nf_tproxy
  qed*: Utilize FW 8.37.2.0
  ...

1 files changed, 424 insertions, 14 deletions

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
index d99d9ea78e4c..b002a7afb5f5 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/utils.c
@@ -8,6 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 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
@@ -35,6 +36,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2014 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
@@ -278,8 +280,8 @@ u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx)
 	u8 ind = last_idx;
 	int i;
 
-	for (i = 0; i < MAX_RS_ANT_NUM; i++) {
-		ind = (ind + 1) % MAX_RS_ANT_NUM;
+	for (i = 0; i < MAX_ANT_NUM; i++) {
+		ind = (ind + 1) % MAX_ANT_NUM;
 		if (valid & BIT(ind))
 			return ind;
 	}
@@ -520,15 +522,15 @@ static void iwl_mvm_dump_lmac_error_log(struct iwl_mvm *mvm, u32 base)
 
 		/* set INIT_DONE flag */
 		iwl_set_bit(trans, CSR_GP_CNTRL,
-			    CSR_GP_CNTRL_REG_FLAG_INIT_DONE);
+			    BIT(trans->cfg->csr->flag_init_done));
 
 		/* and wait for clock stabilization */
 		if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000)
 			udelay(2);
 
 		err = iwl_poll_bit(trans, CSR_GP_CNTRL,
-				   CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
-				   CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY,
+				   BIT(trans->cfg->csr->flag_mac_clock_ready),
+				   BIT(trans->cfg->csr->flag_mac_clock_ready),
 				   25000);
 		if (err < 0) {
 			IWL_DEBUG_INFO(trans,
@@ -728,12 +730,14 @@ int iwl_mvm_tvqm_enable_txq(struct iwl_mvm *mvm, int mac80211_queue,
 		.sta_id = sta_id,
 		.tid = tid,
 	};
-	int queue;
+	int queue, size = IWL_DEFAULT_QUEUE_SIZE;
 
-	if (cmd.tid == IWL_MAX_TID_COUNT)
+	if (cmd.tid == IWL_MAX_TID_COUNT) {
 		cmd.tid = IWL_MGMT_TID;
+		size = IWL_MGMT_QUEUE_SIZE;
+	}
 	queue = iwl_trans_txq_alloc(mvm->trans, (void *)&cmd,
-				    SCD_QUEUE_CFG, timeout);
+				    SCD_QUEUE_CFG, size, timeout);
 
 	if (queue < 0) {
 		IWL_DEBUG_TX_QUEUES(mvm,
@@ -1074,23 +1078,48 @@ int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	return iwl_mvm_power_update_mac(mvm);
 }
 
+struct iwl_mvm_low_latency_iter {
+	bool result;
+	bool result_per_band[NUM_NL80211_BANDS];
+};
+
 static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
 {
-	bool *result = _data;
+	struct iwl_mvm_low_latency_iter *result = _data;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	enum nl80211_band band;
 
-	if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif)))
-		*result = true;
+	if (iwl_mvm_vif_low_latency(mvmvif)) {
+		result->result = true;
+
+		if (!mvmvif->phy_ctxt)
+			return;
+
+		band = mvmvif->phy_ctxt->channel->band;
+		result->result_per_band[band] = true;
+	}
 }
 
 bool iwl_mvm_low_latency(struct iwl_mvm *mvm)
 {
-	bool result = false;
+	struct iwl_mvm_low_latency_iter data = {};
 
 	ieee80211_iterate_active_interfaces_atomic(
 			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
-			iwl_mvm_ll_iter, &result);
+			iwl_mvm_ll_iter, &data);
 
-	return result;
+	return data.result;
+}
+
+bool iwl_mvm_low_latency_band(struct iwl_mvm *mvm, enum nl80211_band band)
+{
+	struct iwl_mvm_low_latency_iter data = {};
+
+	ieee80211_iterate_active_interfaces_atomic(
+			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+			iwl_mvm_ll_iter, &data);
+
+	return data.result_per_band[band];
 }
 
 struct iwl_bss_iter_data {
@@ -1429,6 +1458,387 @@ void iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
 				sta->addr, tid);
 }
 
+u8 iwl_mvm_tcm_load_percentage(u32 airtime, u32 elapsed)
+{
+	if (!elapsed)
+		return 0;
+
+	return (100 * airtime / elapsed) / USEC_PER_MSEC;
+}
+
+static enum iwl_mvm_traffic_load
+iwl_mvm_tcm_load(struct iwl_mvm *mvm, u32 airtime, unsigned long elapsed)
+{
+	u8 load = iwl_mvm_tcm_load_percentage(airtime, elapsed);
+
+	if (load > IWL_MVM_TCM_LOAD_HIGH_THRESH)
+		return IWL_MVM_TRAFFIC_HIGH;
+	if (load > IWL_MVM_TCM_LOAD_MEDIUM_THRESH)
+		return IWL_MVM_TRAFFIC_MEDIUM;
+
+	return IWL_MVM_TRAFFIC_LOW;
+}
+
+struct iwl_mvm_tcm_iter_data {
+	struct iwl_mvm *mvm;
+	bool any_sent;
+};
+
+static void iwl_mvm_tcm_iter(void *_data, u8 *mac, struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_tcm_iter_data *data = _data;
+	struct iwl_mvm *mvm = data->mvm;
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	bool low_latency, prev = mvmvif->low_latency & LOW_LATENCY_TRAFFIC;
+
+	if (mvmvif->id >= NUM_MAC_INDEX_DRIVER)
+		return;
+
+	low_latency = mvm->tcm.result.low_latency[mvmvif->id];
+
+	if (!mvm->tcm.result.change[mvmvif->id] &&
+	    prev == low_latency) {
+		iwl_mvm_update_quotas(mvm, false, NULL);
+		return;
+	}
+
+	if (prev != low_latency) {
+		/* this sends traffic load and updates quota as well */
+		iwl_mvm_update_low_latency(mvm, vif, low_latency,
+					   LOW_LATENCY_TRAFFIC);
+	} else {
+		iwl_mvm_update_quotas(mvm, false, NULL);
+	}
+
+	data->any_sent = true;
+}
+
+static void iwl_mvm_tcm_results(struct iwl_mvm *mvm)
+{
+	struct iwl_mvm_tcm_iter_data data = {
+		.mvm = mvm,
+		.any_sent = false,
+	};
+
+	mutex_lock(&mvm->mutex);
+
+	ieee80211_iterate_active_interfaces(
+		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+		iwl_mvm_tcm_iter, &data);
+
+	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
+		iwl_mvm_config_scan(mvm);
+
+	mutex_unlock(&mvm->mutex);
+}
+
+static void iwl_mvm_tcm_uapsd_nonagg_detected_wk(struct work_struct *wk)
+{
+	struct iwl_mvm *mvm;
+	struct iwl_mvm_vif *mvmvif;
+	struct ieee80211_vif *vif;
+
+	mvmvif = container_of(wk, struct iwl_mvm_vif,
+			      uapsd_nonagg_detected_wk.work);
+	vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
+	mvm = mvmvif->mvm;
+
+	if (mvm->tcm.data[mvmvif->id].opened_rx_ba_sessions)
+		return;
+
+	/* remember that this AP is broken */
+	memcpy(mvm->uapsd_noagg_bssids[mvm->uapsd_noagg_bssid_write_idx].addr,
+	       vif->bss_conf.bssid, ETH_ALEN);
+	mvm->uapsd_noagg_bssid_write_idx++;
+	if (mvm->uapsd_noagg_bssid_write_idx >= IWL_MVM_UAPSD_NOAGG_LIST_LEN)
+		mvm->uapsd_noagg_bssid_write_idx = 0;
+
+	iwl_mvm_connection_loss(mvm, vif,
+				"AP isn't using AMPDU with uAPSD enabled");
+}
+
+static void iwl_mvm_uapsd_agg_disconnect_iter(void *data, u8 *mac,
+					      struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm *mvm = mvmvif->mvm;
+	int *mac_id = data;
+
+	if (vif->type != NL80211_IFTYPE_STATION)
+		return;
+
+	if (mvmvif->id != *mac_id)
+		return;
+
+	if (!vif->bss_conf.assoc)
+		return;
+
+	if (!mvmvif->queue_params[IEEE80211_AC_VO].uapsd &&
+	    !mvmvif->queue_params[IEEE80211_AC_VI].uapsd &&
+	    !mvmvif->queue_params[IEEE80211_AC_BE].uapsd &&
+	    !mvmvif->queue_params[IEEE80211_AC_BK].uapsd)
+		return;
+
+	if (mvm->tcm.data[*mac_id].uapsd_nonagg_detect.detected)
+		return;
+
+	mvm->tcm.data[*mac_id].uapsd_nonagg_detect.detected = true;
+	IWL_INFO(mvm,
+		 "detected AP should do aggregation but isn't, likely due to U-APSD\n");
+	schedule_delayed_work(&mvmvif->uapsd_nonagg_detected_wk, 15 * HZ);
+}
+
+static void iwl_mvm_check_uapsd_agg_expected_tpt(struct iwl_mvm *mvm,
+						 unsigned int elapsed,
+						 int mac)
+{
+	u64 bytes = mvm->tcm.data[mac].uapsd_nonagg_detect.rx_bytes;
+	u64 tpt;
+	unsigned long rate;
+
+	rate = ewma_rate_read(&mvm->tcm.data[mac].uapsd_nonagg_detect.rate);
+
+	if (!rate || mvm->tcm.data[mac].opened_rx_ba_sessions ||
+	    mvm->tcm.data[mac].uapsd_nonagg_detect.detected)
+		return;
+
+	if (iwl_mvm_has_new_rx_api(mvm)) {
+		tpt = 8 * bytes; /* kbps */
+		do_div(tpt, elapsed);
+		rate *= 1000; /* kbps */
+		if (tpt < 22 * rate / 100)
+			return;
+	} else {
+		/*
+		 * the rate here is actually the threshold, in 100Kbps units,
+		 * so do the needed conversion from bytes to 100Kbps:
+		 * 100kb = bits / (100 * 1000),
+		 * 100kbps = 100kb / (msecs / 1000) ==
+		 *           (bits / (100 * 1000)) / (msecs / 1000) ==
+		 *           bits / (100 * msecs)
+		 */
+		tpt = (8 * bytes);
+		do_div(tpt, elapsed * 100);
+		if (tpt < rate)
+			return;
+	}
+
+	ieee80211_iterate_active_interfaces_atomic(
+		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
+		iwl_mvm_uapsd_agg_disconnect_iter, &mac);
+}
+
+static void iwl_mvm_tcm_iterator(void *_data, u8 *mac,
+				 struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	u32 *band = _data;
+
+	if (!mvmvif->phy_ctxt)
+		return;
+
+	band[mvmvif->id] = mvmvif->phy_ctxt->channel->band;
+}
+
+static unsigned long iwl_mvm_calc_tcm_stats(struct iwl_mvm *mvm,
+					    unsigned long ts,
+					    bool handle_uapsd)
+{
+	unsigned int elapsed = jiffies_to_msecs(ts - mvm->tcm.ts);
+	unsigned int uapsd_elapsed =
+		jiffies_to_msecs(ts - mvm->tcm.uapsd_nonagg_ts);
+	u32 total_airtime = 0;
+	u32 band_airtime[NUM_NL80211_BANDS] = {0};
+	u32 band[NUM_MAC_INDEX_DRIVER] = {0};
+	int ac, mac, i;
+	bool low_latency = false;
+	enum iwl_mvm_traffic_load load, band_load;
+	bool handle_ll = time_after(ts, mvm->tcm.ll_ts + MVM_LL_PERIOD);
+
+	if (handle_ll)
+		mvm->tcm.ll_ts = ts;
+	if (handle_uapsd)
+		mvm->tcm.uapsd_nonagg_ts = ts;
+
+	mvm->tcm.result.elapsed = elapsed;
+
+	ieee80211_iterate_active_interfaces_atomic(mvm->hw,
+						   IEEE80211_IFACE_ITER_NORMAL,
+						   iwl_mvm_tcm_iterator,
+						   &band);
+
+	for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) {
+		struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac];
+		u32 vo_vi_pkts = 0;
+		u32 airtime = mdata->rx.airtime + mdata->tx.airtime;
+
+		total_airtime += airtime;
+		band_airtime[band[mac]] += airtime;
+
+		load = iwl_mvm_tcm_load(mvm, airtime, elapsed);
+		mvm->tcm.result.change[mac] = load != mvm->tcm.result.load[mac];
+		mvm->tcm.result.load[mac] = load;
+		mvm->tcm.result.airtime[mac] = airtime;
+
+		for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++)
+			vo_vi_pkts += mdata->rx.pkts[ac] +
+				      mdata->tx.pkts[ac];
+
+		/* enable immediately with enough packets but defer disabling */
+		if (vo_vi_pkts > IWL_MVM_TCM_LOWLAT_ENABLE_THRESH)
+			mvm->tcm.result.low_latency[mac] = true;
+		else if (handle_ll)
+			mvm->tcm.result.low_latency[mac] = false;
+
+		if (handle_ll) {
+			/* clear old data */
+			memset(&mdata->rx.pkts, 0, sizeof(mdata->rx.pkts));
+			memset(&mdata->tx.pkts, 0, sizeof(mdata->tx.pkts));
+		}
+		low_latency |= mvm->tcm.result.low_latency[mac];
+
+		if (!mvm->tcm.result.low_latency[mac] && handle_uapsd)
+			iwl_mvm_check_uapsd_agg_expected_tpt(mvm, uapsd_elapsed,
+							     mac);
+		/* clear old data */
+		if (handle_uapsd)
+			mdata->uapsd_nonagg_detect.rx_bytes = 0;
+		memset(&mdata->rx.airtime, 0, sizeof(mdata->rx.airtime));
+		memset(&mdata->tx.airtime, 0, sizeof(mdata->tx.airtime));
+	}
+
+	load = iwl_mvm_tcm_load(mvm, total_airtime, elapsed);
+	mvm->tcm.result.global_change = load != mvm->tcm.result.global_load;
+	mvm->tcm.result.global_load = load;
+
+	for (i = 0; i < NUM_NL80211_BANDS; i++) {
+		band_load = iwl_mvm_tcm_load(mvm, band_airtime[i], elapsed);
+		mvm->tcm.result.band_load[i] = band_load;
+	}
+
+	/*
+	 * If the current load isn't low we need to force re-evaluation
+	 * in the TCM period, so that we can return to low load if there
+	 * was no traffic at all (and thus iwl_mvm_recalc_tcm didn't get
+	 * triggered by traffic).
+	 */
+	if (load != IWL_MVM_TRAFFIC_LOW)
+		return MVM_TCM_PERIOD;
+	/*
+	 * If low-latency is active we need to force re-evaluation after
+	 * (the longer) MVM_LL_PERIOD, so that we can disable low-latency
+	 * when there's no traffic at all.
+	 */
+	if (low_latency)
+		return MVM_LL_PERIOD;
+	/*
+	 * Otherwise, we don't need to run the work struct because we're
+	 * in the default "idle" state - traffic indication is low (which
+	 * also covers the "no traffic" case) and low-latency is disabled
+	 * so there's no state that may need to be disabled when there's
+	 * no traffic at all.
+	 *
+	 * Note that this has no impact on the regular scheduling of the
+	 * updates triggered by traffic - those happen whenever one of the
+	 * two timeouts expire (if there's traffic at all.)
+	 */
+	return 0;
+}
+
+void iwl_mvm_recalc_tcm(struct iwl_mvm *mvm)
+{
+	unsigned long ts = jiffies;
+	bool handle_uapsd =
+		time_after(ts, mvm->tcm.uapsd_nonagg_ts +
+			       msecs_to_jiffies(IWL_MVM_UAPSD_NONAGG_PERIOD));
+
+	spin_lock(&mvm->tcm.lock);
+	if (mvm->tcm.paused || !time_after(ts, mvm->tcm.ts + MVM_TCM_PERIOD)) {
+		spin_unlock(&mvm->tcm.lock);
+		return;
+	}
+	spin_unlock(&mvm->tcm.lock);
+
+	if (handle_uapsd && iwl_mvm_has_new_rx_api(mvm)) {
+		mutex_lock(&mvm->mutex);
+		if (iwl_mvm_request_statistics(mvm, true))
+			handle_uapsd = false;
+		mutex_unlock(&mvm->mutex);
+	}
+
+	spin_lock(&mvm->tcm.lock);
+	/* re-check if somebody else won the recheck race */
+	if (!mvm->tcm.paused && time_after(ts, mvm->tcm.ts + MVM_TCM_PERIOD)) {
+		/* calculate statistics */
+		unsigned long work_delay = iwl_mvm_calc_tcm_stats(mvm, ts,
+								  handle_uapsd);
+
+		/* the memset needs to be visible before the timestamp */
+		smp_mb();
+		mvm->tcm.ts = ts;
+		if (work_delay)
+			schedule_delayed_work(&mvm->tcm.work, work_delay);
+	}
+	spin_unlock(&mvm->tcm.lock);
+
+	iwl_mvm_tcm_results(mvm);
+}
+
+void iwl_mvm_tcm_work(struct work_struct *work)
+{
+	struct delayed_work *delayed_work = to_delayed_work(work);
+	struct iwl_mvm *mvm = container_of(delayed_work, struct iwl_mvm,
+					   tcm.work);
+
+	iwl_mvm_recalc_tcm(mvm);
+}
+
+void iwl_mvm_pause_tcm(struct iwl_mvm *mvm, bool with_cancel)
+{
+	spin_lock_bh(&mvm->tcm.lock);
+	mvm->tcm.paused = true;
+	spin_unlock_bh(&mvm->tcm.lock);
+	if (with_cancel)
+		cancel_delayed_work_sync(&mvm->tcm.work);
+}
+
+void iwl_mvm_resume_tcm(struct iwl_mvm *mvm)
+{
+	int mac;
+
+	spin_lock_bh(&mvm->tcm.lock);
+	mvm->tcm.ts = jiffies;
+	mvm->tcm.ll_ts = jiffies;
+	for (mac = 0; mac < NUM_MAC_INDEX_DRIVER; mac++) {
+		struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[mac];
+
+		memset(&mdata->rx.pkts, 0, sizeof(mdata->rx.pkts));
+		memset(&mdata->tx.pkts, 0, sizeof(mdata->tx.pkts));
+		memset(&mdata->rx.airtime, 0, sizeof(mdata->rx.airtime));
+		memset(&mdata->tx.airtime, 0, sizeof(mdata->tx.airtime));
+	}
+	/* The TCM data needs to be reset before "paused" flag changes */
+	smp_mb();
+	mvm->tcm.paused = false;
+	spin_unlock_bh(&mvm->tcm.lock);
+}
+
+void iwl_mvm_tcm_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+	INIT_DELAYED_WORK(&mvmvif->uapsd_nonagg_detected_wk,
+			  iwl_mvm_tcm_uapsd_nonagg_detected_wk);
+}
+
+void iwl_mvm_tcm_rm_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+	cancel_delayed_work_sync(&mvmvif->uapsd_nonagg_detected_wk);
+}
+
+
 void iwl_mvm_get_sync_time(struct iwl_mvm *mvm, u32 *gp2, u64 *boottime)
 {
 	bool ps_disabled;