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

Pull networking changes from David Miller:

1) Allow to dump, monitor, and change the bridge multicast database
   using netlink.  From Cong Wang.

2) RFC 5961 TCP blind data injection attack mitigation, from Eric
   Dumazet.

3) Networking user namespace support from Eric W. Biederman.

4) tuntap/virtio-net multiqueue support by Jason Wang.

5) Support for checksum offload of encapsulated packets (basically,
   tunneled traffic can still be checksummed by HW).  From Joseph
   Gasparakis.

6) Allow BPF filter access to VLAN tags, from Eric Dumazet and
   Daniel Borkmann.

7) Bridge port parameters over netlink and BPDU blocking support
   from Stephen Hemminger.

8) Improve data access patterns during inet socket demux by rearranging
   socket layout, from Eric Dumazet.

9) TIPC protocol updates and cleanups from Ying Xue, Paul Gortmaker, and
   Jon Maloy.

10) Update TCP socket hash sizing to be more in line with current day
    realities.  The existing heurstics were choosen a decade ago.
    From Eric Dumazet.

11) Fix races, queue bloat, and excessive wakeups in ATM and
    associated drivers, from Krzysztof Mazur and David Woodhouse.

12) Support DOVE (Distributed Overlay Virtual Ethernet) extensions
    in VXLAN driver, from David Stevens.

13) Add "oops_only" mode to netconsole, from Amerigo Wang.

14) Support set and query of VEB/VEPA bridge mode via PF_BRIDGE, also
    allow DCB netlink to work on namespaces other than the initial
    namespace.  From John Fastabend.

15) Support PTP in the Tigon3 driver, from Matt Carlson.

16) tun/vhost zero copy fixes and improvements, plus turn it on
    by default, from Michael S. Tsirkin.

17) Support per-association statistics in SCTP, from Michele
    Baldessari.

And many, many, driver updates, cleanups, and improvements.  Too
numerous to mention individually.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1722 commits)
  net/mlx4_en: Add support for destination MAC in steering rules
  net/mlx4_en: Use generic etherdevice.h functions.
  net: ethtool: Add destination MAC address to flow steering API
  bridge: add support of adding and deleting mdb entries
  bridge: notify mdb changes via netlink
  ndisc: Unexport ndisc_{build,send}_skb().
  uapi: add missing netconf.h to export list
  pkt_sched: avoid requeues if possible
  solos-pci: fix double-free of TX skb in DMA mode
  bnx2: Fix accidental reversions.
  bna: Driver Version Updated to 3.1.2.1
  bna: Firmware update
  bna: Add RX State
  bna: Rx Page Based Allocation
  bna: TX Intr Coalescing Fix
  bna: Tx and Rx Optimizations
  bna: Code Cleanup and Enhancements
  ath9k: check pdata variable before dereferencing it
  ath5k: RX timestamp is reported at end of frame
  ath9k_htc: RX timestamp is reported at end of frame
  ...

1 files changed, 310 insertions, 189 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 7371f676cf41..5c61677487cf 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -370,29 +370,64 @@ static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 	return 0;
 }
 
-static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
-{
-	if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
-		struct ieee80211_supported_band *sband;
-		sband = sta->local->hw.wiphy->bands[
-				sta->local->oper_channel->band];
-		rate->legacy = sband->bitrates[idx].bitrate;
-	} else
-		rate->mcs = idx;
-}
-
 void sta_set_rate_info_tx(struct sta_info *sta,
 			  const struct ieee80211_tx_rate *rate,
 			  struct rate_info *rinfo)
 {
 	rinfo->flags = 0;
-	if (rate->flags & IEEE80211_TX_RC_MCS)
+	if (rate->flags & IEEE80211_TX_RC_MCS) {
 		rinfo->flags |= RATE_INFO_FLAGS_MCS;
+		rinfo->mcs = rate->idx;
+	} else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
+		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
+		rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
+		rinfo->nss = ieee80211_rate_get_vht_nss(rate);
+	} else {
+		struct ieee80211_supported_band *sband;
+		sband = sta->local->hw.wiphy->bands[
+				ieee80211_get_sdata_band(sta->sdata)];
+		rinfo->legacy = sband->bitrates[rate->idx].bitrate;
+	}
 	if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 		rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+	if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
+		rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
+	if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
+		rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 	if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
-	rate_idx_to_bitrate(rinfo, sta, rate->idx);
+}
+
+void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
+{
+	rinfo->flags = 0;
+
+	if (sta->last_rx_rate_flag & RX_FLAG_HT) {
+		rinfo->flags |= RATE_INFO_FLAGS_MCS;
+		rinfo->mcs = sta->last_rx_rate_idx;
+	} else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
+		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
+		rinfo->nss = sta->last_rx_rate_vht_nss;
+		rinfo->mcs = sta->last_rx_rate_idx;
+	} else {
+		struct ieee80211_supported_band *sband;
+
+		sband = sta->local->hw.wiphy->bands[
+				ieee80211_get_sdata_band(sta->sdata)];
+		rinfo->legacy =
+			sband->bitrates[sta->last_rx_rate_idx].bitrate;
+	}
+
+	if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+	if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
+		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
+	if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
+	if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
+	if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
+		rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 }
 
 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
@@ -441,15 +476,7 @@ static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 	}
 
 	sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
-
-	sinfo->rxrate.flags = 0;
-	if (sta->last_rx_rate_flag & RX_FLAG_HT)
-		sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
-	if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
-		sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
-	if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
-		sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
-	rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
+	sta_set_rate_info_rx(sta, &sinfo->rxrate);
 
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
 #ifdef CONFIG_MAC80211_MESH
@@ -532,6 +559,8 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
 				   u64 *data)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_channel *channel;
 	struct sta_info *sta;
 	struct ieee80211_local *local = sdata->local;
 	struct station_info sinfo;
@@ -607,19 +636,26 @@ static void ieee80211_get_et_stats(struct wiphy *wiphy,
 do_survey:
 	i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
 	/* Get survey stats for current channel */
-	q = 0;
-	while (true) {
-		survey.filled = 0;
-		if (drv_get_survey(local, q, &survey) != 0) {
-			survey.filled = 0;
-			break;
-		}
+	survey.filled = 0;
 
-		if (survey.channel &&
-		    (local->oper_channel->center_freq ==
-		     survey.channel->center_freq))
-			break;
-		q++;
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (chanctx_conf)
+		channel = chanctx_conf->def.chan;
+	else
+		channel = NULL;
+	rcu_read_unlock();
+
+	if (channel) {
+		q = 0;
+		do {
+			survey.filled = 0;
+			if (drv_get_survey(local, q, &survey) != 0) {
+				survey.filled = 0;
+				break;
+			}
+			q++;
+		} while (channel != survey.channel);
 	}
 
 	if (survey.filled)
@@ -724,47 +760,37 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 	return ret;
 }
 
-static int ieee80211_set_channel(struct wiphy *wiphy,
-				 struct net_device *netdev,
-				 struct ieee80211_channel *chan,
-				 enum nl80211_channel_type channel_type)
+static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
+					 struct cfg80211_chan_def *chandef)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = NULL;
-
-	if (netdev)
-		sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
-
-	switch (ieee80211_get_channel_mode(local, NULL)) {
-	case CHAN_MODE_HOPPING:
-		return -EBUSY;
-	case CHAN_MODE_FIXED:
-		if (local->oper_channel != chan ||
-		    (!sdata && local->_oper_channel_type != channel_type))
-			return -EBUSY;
-		if (!sdata && local->_oper_channel_type == channel_type)
-			return 0;
-		break;
-	case CHAN_MODE_UNDEFINED:
-		break;
-	}
+	struct ieee80211_sub_if_data *sdata;
+	int ret = 0;
 
-	if (!ieee80211_set_channel_type(local, sdata, channel_type))
-		return -EBUSY;
+	if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
+		return 0;
 
-	local->oper_channel = chan;
+	mutex_lock(&local->iflist_mtx);
+	if (local->use_chanctx) {
+		sdata = rcu_dereference_protected(
+				local->monitor_sdata,
+				lockdep_is_held(&local->iflist_mtx));
+		if (sdata) {
+			ieee80211_vif_release_channel(sdata);
+			ret = ieee80211_vif_use_channel(sdata, chandef,
+					IEEE80211_CHANCTX_EXCLUSIVE);
+		}
+	} else if (local->open_count == local->monitors) {
+		local->_oper_channel = chandef->chan;
+		local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
+		ieee80211_hw_config(local, 0);
+	}
 
-	/* auto-detects changes */
-	ieee80211_hw_config(local, 0);
+	if (ret == 0)
+		local->monitor_chandef = *chandef;
+	mutex_unlock(&local->iflist_mtx);
 
-	return 0;
-}
-
-static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
-					 struct ieee80211_channel *chan,
-					 enum nl80211_channel_type channel_type)
-{
-	return ieee80211_set_channel(wiphy, NULL, chan, channel_type);
+	return ret;
 }
 
 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
@@ -872,15 +898,20 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	u32 changed = BSS_CHANGED_BEACON_INT |
 		      BSS_CHANGED_BEACON_ENABLED |
 		      BSS_CHANGED_BEACON |
-		      BSS_CHANGED_SSID;
+		      BSS_CHANGED_SSID |
+		      BSS_CHANGED_P2P_PS;
 	int err;
 
 	old = rtnl_dereference(sdata->u.ap.beacon);
 	if (old)
 		return -EALREADY;
 
-	err = ieee80211_set_channel(wiphy, dev, params->channel,
-				    params->channel_type);
+	/* TODO: make hostapd tell us what it wants */
+	sdata->smps_mode = IEEE80211_SMPS_OFF;
+	sdata->needed_rx_chains = sdata->local->rx_chains;
+
+	err = ieee80211_vif_use_channel(sdata, &params->chandef,
+					IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
 
@@ -907,11 +938,23 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 	sdata->vif.bss_conf.hidden_ssid =
 		(params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 
+	sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
+	sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
+
 	err = ieee80211_assign_beacon(sdata, &params->beacon);
 	if (err < 0)
 		return err;
 	changed |= err;
 
+	err = drv_start_ap(sdata->local, sdata);
+	if (err) {
+		old = rtnl_dereference(sdata->u.ap.beacon);
+		if (old)
+			kfree_rcu(old, rcu_head);
+		RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
+		return err;
+	}
+
 	ieee80211_bss_info_change_notify(sdata, changed);
 
 	netif_carrier_on(dev);
@@ -943,26 +986,40 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 
 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 {
-	struct ieee80211_sub_if_data *sdata, *vlan;
-	struct beacon_data *old;
-
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	struct ieee80211_sub_if_data *vlan;
+	struct ieee80211_local *local = sdata->local;
+	struct beacon_data *old_beacon;
+	struct probe_resp *old_probe_resp;
 
-	old = rtnl_dereference(sdata->u.ap.beacon);
-	if (!old)
+	old_beacon = rtnl_dereference(sdata->u.ap.beacon);
+	if (!old_beacon)
 		return -ENOENT;
+	old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
 
+	/* turn off carrier for this interface and dependent VLANs */
 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 		netif_carrier_off(vlan->dev);
 	netif_carrier_off(dev);
 
+	/* remove beacon and probe response */
 	RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
+	RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
+	kfree_rcu(old_beacon, rcu_head);
+	if (old_probe_resp)
+		kfree_rcu(old_probe_resp, rcu_head);
 
-	kfree_rcu(old, rcu_head);
-
-	sta_info_flush(sdata->local, sdata);
+	sta_info_flush(local, sdata);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 
+	drv_stop_ap(sdata->local, sdata);
+
+	/* free all potentially still buffered bcast frames */
+	local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
+	skb_queue_purge(&sdata->u.ap.ps.bc_buf);
+
+	ieee80211_vif_release_channel(sdata);
+
 	return 0;
 }
 
@@ -1019,9 +1076,10 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 	int i, j;
 	struct ieee80211_supported_band *sband;
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	u32 mask, set;
 
-	sband = local->hw.wiphy->bands[local->oper_channel->band];
+	sband = local->hw.wiphy->bands[band];
 
 	mask = params->sta_flags_mask;
 	set = params->sta_flags_set;
@@ -1136,7 +1194,7 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 					rates |= BIT(j);
 			}
 		}
-		sta->sta.supp_rates[local->oper_channel->band] = rates;
+		sta->sta.supp_rates[band] = rates;
 	}
 
 	if (params->ht_capa)
@@ -1144,6 +1202,11 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 						  params->ht_capa,
 						  &sta->sta.ht_cap);
 
+	if (params->vht_capa)
+		ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
+						    params->vht_capa,
+						    &sta->sta.vht_cap);
+
 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
 #ifdef CONFIG_MAC80211_MESH
 		if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
@@ -1664,8 +1727,12 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
 	if (err)
 		return err;
 
-	err = ieee80211_set_channel(wiphy, dev, setup->channel,
-				    setup->channel_type);
+	/* can mesh use other SMPS modes? */
+	sdata->smps_mode = IEEE80211_SMPS_OFF;
+	sdata->needed_rx_chains = sdata->local->rx_chains;
+
+	err = ieee80211_vif_use_channel(sdata, &setup->chandef,
+					IEEE80211_CHANCTX_SHARED);
 	if (err)
 		return err;
 
@@ -1679,6 +1746,7 @@ static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
 	ieee80211_stop_mesh(sdata);
+	ieee80211_vif_release_channel(sdata);
 
 	return 0;
 }
@@ -1688,10 +1756,14 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 				struct net_device *dev,
 				struct bss_parameters *params)
 {
-	struct ieee80211_sub_if_data *sdata;
+	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	enum ieee80211_band band;
 	u32 changed = 0;
 
-	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+	if (!rtnl_dereference(sdata->u.ap.beacon))
+		return -ENOENT;
+
+	band = ieee80211_get_sdata_band(sdata);
 
 	if (params->use_cts_prot >= 0) {
 		sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
@@ -1704,7 +1776,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 	}
 
 	if (!sdata->vif.bss_conf.use_short_slot &&
-	    sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
+	    band == IEEE80211_BAND_5GHZ) {
 		sdata->vif.bss_conf.use_short_slot = true;
 		changed |= BSS_CHANGED_ERP_SLOT;
 	}
@@ -1718,9 +1790,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 	if (params->basic_rates) {
 		int i, j;
 		u32 rates = 0;
-		struct ieee80211_local *local = wiphy_priv(wiphy);
-		struct ieee80211_supported_band *sband =
-			wiphy->bands[local->oper_channel->band];
+		struct ieee80211_supported_band *sband = wiphy->bands[band];
 
 		for (i = 0; i < params->basic_rates_len; i++) {
 			int rate = (params->basic_rates[i] & 0x7f) * 5;
@@ -1746,6 +1816,16 @@ static int ieee80211_change_bss(struct wiphy *wiphy,
 		changed |= BSS_CHANGED_HT;
 	}
 
+	if (params->p2p_ctwindow >= 0) {
+		sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
+		changed |= BSS_CHANGED_P2P_PS;
+	}
+
+	if (params->p2p_opp_ps >= 0) {
+		sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
+		changed |= BSS_CHANGED_P2P_PS;
+	}
+
 	ieee80211_bss_info_change_notify(sdata, changed);
 
 	return 0;
@@ -1829,7 +1909,16 @@ static int ieee80211_scan(struct wiphy *wiphy,
 		 * beaconing hasn't been configured yet
 		 */
 	case NL80211_IFTYPE_AP:
-		if (sdata->u.ap.beacon)
+		/*
+		 * If the scan has been forced (and the driver supports
+		 * forcing), don't care about being beaconing already.
+		 * This will create problems to the attached stations (e.g. all
+		 * the  frames sent while scanning on other channel will be
+		 * lost)
+		 */
+		if (sdata->u.ap.beacon &&
+		    (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
+		     !(req->flags & NL80211_SCAN_FLAG_AP)))
 			return -EOPNOTSUPP;
 		break;
 	default:
@@ -1872,20 +1961,6 @@ static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
 			   struct cfg80211_assoc_request *req)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	switch (ieee80211_get_channel_mode(local, sdata)) {
-	case CHAN_MODE_HOPPING:
-		return -EBUSY;
-	case CHAN_MODE_FIXED:
-		if (local->oper_channel == req->bss->channel)
-			break;
-		return -EBUSY;
-	case CHAN_MODE_UNDEFINED:
-		break;
-	}
-
 	return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
 }
 
@@ -1904,30 +1979,22 @@ static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
 			       struct cfg80211_ibss_params *params)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
-	switch (ieee80211_get_channel_mode(local, sdata)) {
-	case CHAN_MODE_HOPPING:
-		return -EBUSY;
-	case CHAN_MODE_FIXED:
-		if (!params->channel_fixed)
-			return -EBUSY;
-		if (local->oper_channel == params->channel)
-			break;
-		return -EBUSY;
-	case CHAN_MODE_UNDEFINED:
-		break;
-	}
-
-	return ieee80211_ibss_join(sdata, params);
+	return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
 }
 
 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 {
+	return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
+}
+
+static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
+				    int rate[IEEE80211_NUM_BANDS])
+{
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 
-	return ieee80211_ibss_leave(sdata);
+	memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate));
+
+	return 0;
 }
 
 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
@@ -1956,10 +2023,16 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 			return err;
 	}
 
-	if (changed & WIPHY_PARAM_RETRY_SHORT)
+	if (changed & WIPHY_PARAM_RETRY_SHORT) {
+		if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
+			return -EINVAL;
 		local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
-	if (changed & WIPHY_PARAM_RETRY_LONG)
+	}
+	if (changed & WIPHY_PARAM_RETRY_LONG) {
+		if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
+			return -EINVAL;
 		local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
+	}
 	if (changed &
 	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
@@ -1968,41 +2041,65 @@ static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 }
 
 static int ieee80211_set_tx_power(struct wiphy *wiphy,
+				  struct wireless_dev *wdev,
 				  enum nl80211_tx_power_setting type, int mbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
-	struct ieee80211_channel *chan = local->oper_channel;
-	u32 changes = 0;
+	struct ieee80211_sub_if_data *sdata;
+
+	if (wdev) {
+		sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+
+		switch (type) {
+		case NL80211_TX_POWER_AUTOMATIC:
+			sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
+			break;
+		case NL80211_TX_POWER_LIMITED:
+		case NL80211_TX_POWER_FIXED:
+			if (mbm < 0 || (mbm % 100))
+				return -EOPNOTSUPP;
+			sdata->user_power_level = MBM_TO_DBM(mbm);
+			break;
+		}
+
+		ieee80211_recalc_txpower(sdata);
+
+		return 0;
+	}
 
 	switch (type) {
 	case NL80211_TX_POWER_AUTOMATIC:
-		local->user_power_level = -1;
+		local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
 		break;
 	case NL80211_TX_POWER_LIMITED:
-		if (mbm < 0 || (mbm % 100))
-			return -EOPNOTSUPP;
-		local->user_power_level = MBM_TO_DBM(mbm);
-		break;
 	case NL80211_TX_POWER_FIXED:
 		if (mbm < 0 || (mbm % 100))
 			return -EOPNOTSUPP;
-		/* TODO: move to cfg80211 when it knows the channel */
-		if (MBM_TO_DBM(mbm) > chan->max_power)
-			return -EINVAL;
 		local->user_power_level = MBM_TO_DBM(mbm);
 		break;
 	}
 
-	ieee80211_hw_config(local, changes);
+	mutex_lock(&local->iflist_mtx);
+	list_for_each_entry(sdata, &local->interfaces, list)
+		sdata->user_power_level = local->user_power_level;
+	list_for_each_entry(sdata, &local->interfaces, list)
+		ieee80211_recalc_txpower(sdata);
+	mutex_unlock(&local->iflist_mtx);
 
 	return 0;
 }
 
-static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
+static int ieee80211_get_tx_power(struct wiphy *wiphy,
+				  struct wireless_dev *wdev,
+				  int *dbm)
 {
 	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 
-	*dbm = local->hw.conf.power_level;
+	if (!local->use_chanctx)
+		*dbm = local->hw.conf.power_level;
+	else
+		*dbm = sdata->vif.bss_conf.txpower;
 
 	return 0;
 }
@@ -2067,13 +2164,12 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 
 	/*
 	 * If not associated, or current association is not an HT
-	 * association, there's no need to send an action frame.
+	 * association, there's no need to do anything, just store
+	 * the new value until we associate.
 	 */
 	if (!sdata->u.mgd.associated ||
-	    sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
-		ieee80211_recalc_smps(sdata->local);
+	    sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
 		return 0;
-	}
 
 	ap = sdata->u.mgd.associated->bssid;
 
@@ -2179,7 +2275,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 static int ieee80211_start_roc_work(struct ieee80211_local *local,
 				    struct ieee80211_sub_if_data *sdata,
 				    struct ieee80211_channel *channel,
-				    enum nl80211_channel_type channel_type,
 				    unsigned int duration, u64 *cookie,
 				    struct sk_buff *txskb)
 {
@@ -2189,12 +2284,14 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 
 	lockdep_assert_held(&local->mtx);
 
+	if (local->use_chanctx && !local->ops->remain_on_channel)
+		return -EOPNOTSUPP;
+
 	roc = kzalloc(sizeof(*roc), GFP_KERNEL);
 	if (!roc)
 		return -ENOMEM;
 
 	roc->chan = channel;
-	roc->chan_type = channel_type;
 	roc->duration = duration;
 	roc->req_duration = duration;
 	roc->frame = txskb;
@@ -2227,7 +2324,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 	if (!duration)
 		duration = 10;
 
-	ret = drv_remain_on_channel(local, channel, channel_type, duration);
+	ret = drv_remain_on_channel(local, sdata, channel, duration);
 	if (ret) {
 		kfree(roc);
 		return ret;
@@ -2238,7 +2335,7 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 
  out_check_combine:
 	list_for_each_entry(tmp, &local->roc_list, list) {
-		if (tmp->chan != channel || tmp->chan_type != channel_type)
+		if (tmp->chan != channel || tmp->sdata != sdata)
 			continue;
 
 		/*
@@ -2332,13 +2429,22 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 		list_add_tail(&roc->list, &local->roc_list);
 
 	/*
-	 * cookie is either the roc (for normal roc)
+	 * cookie is either the roc cookie (for normal roc)
 	 * or the SKB (for mgmt TX)
 	 */
-	if (txskb)
+	if (!txskb) {
+		/* local->mtx protects this */
+		local->roc_cookie_counter++;
+		roc->cookie = local->roc_cookie_counter;
+		/* wow, you wrapped 64 bits ... more likely a bug */
+		if (WARN_ON(roc->cookie == 0)) {
+			roc->cookie = 1;
+			local->roc_cookie_counter++;
+		}
+		*cookie = roc->cookie;
+	} else {
 		*cookie = (unsigned long)txskb;
-	else
-		*cookie = (unsigned long)roc;
+	}
 
 	return 0;
 }
@@ -2346,7 +2452,6 @@ static int ieee80211_start_roc_work(struct ieee80211_local *local,
 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
 				       struct wireless_dev *wdev,
 				       struct ieee80211_channel *chan,
-				       enum nl80211_channel_type channel_type,
 				       unsigned int duration,
 				       u64 *cookie)
 {
@@ -2355,7 +2460,7 @@ static int ieee80211_remain_on_channel(struct wiphy *wiphy,
 	int ret;
 
 	mutex_lock(&local->mtx);
-	ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
+	ret = ieee80211_start_roc_work(local, sdata, chan,
 				       duration, cookie, NULL);
 	mutex_unlock(&local->mtx);
 
@@ -2373,7 +2478,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 		struct ieee80211_roc_work *dep, *tmp2;
 
 		list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
-			if (!mgmt_tx && (unsigned long)dep != cookie)
+			if (!mgmt_tx && dep->cookie != cookie)
 				continue;
 			else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
 				continue;
@@ -2385,7 +2490,7 @@ static int ieee80211_cancel_roc(struct ieee80211_local *local,
 			return 0;
 		}
 
-		if (!mgmt_tx && (unsigned long)roc != cookie)
+		if (!mgmt_tx && roc->cookie != cookie)
 			continue;
 		else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
 			continue;
@@ -2448,10 +2553,8 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
 
 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			     struct ieee80211_channel *chan, bool offchan,
-			     enum nl80211_channel_type channel_type,
-			     bool channel_type_valid, unsigned int wait,
-			     const u8 *buf, size_t len, bool no_cck,
-			     bool dont_wait_for_ack, u64 *cookie)
+			     unsigned int wait, const u8 *buf, size_t len,
+			     bool no_cck, bool dont_wait_for_ack, u64 *cookie)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 	struct ieee80211_local *local = sdata->local;
@@ -2515,10 +2618,16 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 
 	/* Check if the operating channel is the requested channel */
 	if (!need_offchan) {
-		need_offchan = chan != local->oper_channel;
-		if (channel_type_valid &&
-		    channel_type != local->_oper_channel_type)
+		struct ieee80211_chanctx_conf *chanctx_conf;
+
+		rcu_read_lock();
+		chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+
+		if (chanctx_conf)
+			need_offchan = chan != chanctx_conf->def.chan;
+		else
 			need_offchan = true;
+		rcu_read_unlock();
 	}
 
 	if (need_offchan && !offchan) {
@@ -2552,7 +2661,7 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			local->hw.offchannel_tx_hw_queue;
 
 	/* This will handle all kinds of coalescing and immediate TX */
-	ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
+	ret = ieee80211_start_roc_work(local, sdata, chan,
 				       wait, cookie, skb);
 	if (ret)
 		kfree_skb(skb);
@@ -2670,7 +2779,7 @@ static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
 	u16 capab;
 
 	capab = 0;
-	if (local->oper_channel->band != IEEE80211_BAND_2GHZ)
+	if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
 		return capab;
 
 	if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
@@ -2702,7 +2811,7 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 			       u16 status_code, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = sdata->local;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	struct ieee80211_tdls_data *tf;
 
 	tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
@@ -2722,10 +2831,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 		tf->u.setup_req.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false,
-					local->oper_channel->band);
-		ieee80211_add_ext_srates_ie(sdata, skb, false,
-					    local->oper_channel->band);
+		ieee80211_add_srates_ie(sdata, skb, false, band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false, band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	case WLAN_TDLS_SETUP_RESPONSE:
@@ -2738,10 +2845,8 @@ ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
 		tf->u.setup_resp.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false,
-					local->oper_channel->band);
-		ieee80211_add_ext_srates_ie(sdata, skb, false,
-					    local->oper_channel->band);
+		ieee80211_add_srates_ie(sdata, skb, false, band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false, band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	case WLAN_TDLS_SETUP_CONFIRM:
@@ -2779,7 +2884,7 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
 			   u16 status_code, struct sk_buff *skb)
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-	struct ieee80211_local *local = sdata->local;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 	struct ieee80211_mgmt *mgmt;
 
 	mgmt = (void *)skb_put(skb, 24);
@@ -2802,10 +2907,8 @@ ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
 		mgmt->u.action.u.tdls_discover_resp.capability =
 			cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
 
-		ieee80211_add_srates_ie(sdata, skb, false,
-					local->oper_channel->band);
-		ieee80211_add_ext_srates_ie(sdata, skb, false,
-					    local->oper_channel->band);
+		ieee80211_add_srates_ie(sdata, skb, false, band);
+		ieee80211_add_ext_srates_ie(sdata, skb, false, band);
 		ieee80211_tdls_add_ext_capab(skb);
 		break;
 	default:
@@ -2822,7 +2925,6 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
 {
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	struct ieee80211_local *local = sdata->local;
-	struct ieee80211_tx_info *info;
 	struct sk_buff *skb = NULL;
 	bool send_direct;
 	int ret;
@@ -2848,7 +2950,6 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
 	if (!skb)
 		return -ENOMEM;
 
-	info = IEEE80211_SKB_CB(skb);
 	skb_reserve(skb, local->hw.extra_tx_headroom);
 
 	switch (action_code) {
@@ -2985,12 +3086,19 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 	bool qos;
 	struct ieee80211_tx_info *info;
 	struct sta_info *sta;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	enum ieee80211_band band;
 
 	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (WARN_ON(!chanctx_conf)) {
+		rcu_read_unlock();
+		return -EINVAL;
+	}
+	band = chanctx_conf->def.chan->band;
 	sta = sta_info_get(sdata, peer);
 	if (sta) {
 		qos = test_sta_flag(sta, WLAN_STA_WME);
-		rcu_read_unlock();
 	} else {
 		rcu_read_unlock();
 		return -ENOLINK;
@@ -3008,8 +3116,10 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 	}
 
 	skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
-	if (!skb)
+	if (!skb) {
+		rcu_read_unlock();
 		return -ENOMEM;
+	}
 
 	skb->dev = dev;
 
@@ -3034,21 +3144,31 @@ static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
 		nullfunc->qos_ctrl = cpu_to_le16(7);
 
 	local_bh_disable();
-	ieee80211_xmit(sdata, skb);
+	ieee80211_xmit(sdata, skb, band);
 	local_bh_enable();
+	rcu_read_unlock();
 
 	*cookie = (unsigned long) skb;
 	return 0;
 }
 
-static struct ieee80211_channel *
-ieee80211_cfg_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
-			  enum nl80211_channel_type *type)
+static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
+				     struct wireless_dev *wdev,
+				     struct cfg80211_chan_def *chandef)
 {
-	struct ieee80211_local *local = wiphy_priv(wiphy);
+	struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	int ret = -ENODATA;
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (chanctx_conf) {
+		*chandef = chanctx_conf->def;
+		ret = 0;
+	}
+	rcu_read_unlock();
 
-	*type = local->_oper_channel_type;
-	return local->oper_channel;
+	return ret;
 }
 
 #ifdef CONFIG_PM
@@ -3103,6 +3223,7 @@ struct cfg80211_ops mac80211_config_ops = {
 	.disassoc = ieee80211_disassoc,
 	.join_ibss = ieee80211_join_ibss,
 	.leave_ibss = ieee80211_leave_ibss,
+	.set_mcast_rate = ieee80211_set_mcast_rate,
 	.set_wiphy_params = ieee80211_set_wiphy_params,
 	.set_tx_power = ieee80211_set_tx_power,
 	.get_tx_power = ieee80211_get_tx_power,