Merge remote-tracking branch 'wireless-next/master' into iwlwifi-next

4 files changed, 521 insertions, 66 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 7e8a498efe6d..7e24fe0cfbcd 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -714,6 +714,30 @@ enum ieee80211_ht_chanwidth_values {
 	IEEE80211_HT_CHANWIDTH_ANY = 1,
 };
 
+/**
+ * enum ieee80211_opmode_bits - VHT operating mode field bits
+ * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK: channel width mask
+ * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ: 20 MHz channel width
+ * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ: 40 MHz channel width
+ * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ: 80 MHz channel width
+ * @IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ: 160 MHz or 80+80 MHz channel width
+ * @IEEE80211_OPMODE_NOTIF_RX_NSS_MASK: number of spatial streams mask
+ *	(the NSS value is the value of this field + 1)
+ * @IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT: number of spatial streams shift
+ * @IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF: indicates streams in SU-MIMO PPDU
+ *	using a beamforming steering matrix
+ */
+enum ieee80211_vht_opmode_bits {
+	IEEE80211_OPMODE_NOTIF_CHANWIDTH_MASK	= 3,
+	IEEE80211_OPMODE_NOTIF_CHANWIDTH_20MHZ	= 0,
+	IEEE80211_OPMODE_NOTIF_CHANWIDTH_40MHZ	= 1,
+	IEEE80211_OPMODE_NOTIF_CHANWIDTH_80MHZ	= 2,
+	IEEE80211_OPMODE_NOTIF_CHANWIDTH_160MHZ	= 3,
+	IEEE80211_OPMODE_NOTIF_RX_NSS_MASK	= 0x70,
+	IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT	= 4,
+	IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF	= 0x80,
+};
+
 #define WLAN_SA_QUERY_TR_ID_LEN 2
 
 struct ieee80211_mgmt {
@@ -844,6 +868,10 @@ struct ieee80211_mgmt {
 					__le16 capability;
 					u8 variable[0];
 				} __packed tdls_discover_resp;
+				struct {
+					u8 action_code;
+					u8 operating_mode;
+				} __packed vht_opmode_notif;
 			} u;
 		} __packed action;
 	} u;
@@ -1273,6 +1301,7 @@ struct ieee80211_vht_operation {
 #define IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454			0x00000002
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ		0x00000004
 #define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ	0x00000008
+#define IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK			0x0000000C
 #define IEEE80211_VHT_CAP_RXLDPC				0x00000010
 #define IEEE80211_VHT_CAP_SHORT_GI_80				0x00000020
 #define IEEE80211_VHT_CAP_SHORT_GI_160				0x00000040
@@ -1598,6 +1627,7 @@ enum ieee80211_eid {
 
 	WLAN_EID_VHT_CAPABILITY = 191,
 	WLAN_EID_VHT_OPERATION = 192,
+	WLAN_EID_OPMODE_NOTIF = 199,
 
 	/* 802.11ad */
 	WLAN_EID_NON_TX_BSSID_CAP =  83,
@@ -1652,6 +1682,7 @@ enum ieee80211_category {
 	WLAN_CATEGORY_WMM = 17,
 	WLAN_CATEGORY_FST = 18,
 	WLAN_CATEGORY_UNPROT_DMG = 20,
+	WLAN_CATEGORY_VHT = 21,
 	WLAN_CATEGORY_VENDOR_SPECIFIC_PROTECTED = 126,
 	WLAN_CATEGORY_VENDOR_SPECIFIC = 127,
 };
@@ -1677,6 +1708,13 @@ enum ieee80211_ht_actioncode {
 	WLAN_HT_ACTION_ASEL_IDX_FEEDBACK = 7,
 };
 
+/* VHT action codes */
+enum ieee80211_vht_actioncode {
+	WLAN_VHT_ACTION_COMPRESSED_BF = 0,
+	WLAN_VHT_ACTION_GROUPID_MGMT = 1,
+	WLAN_VHT_ACTION_OPMODE_NOTIF = 2,
+};
+
 /* Self Protected Action codes */
 enum ieee80211_self_protected_actioncode {
 	WLAN_SP_RESERVED = 0,
@@ -1738,6 +1776,8 @@ enum ieee80211_tdls_actioncode {
 #define WLAN_EXT_CAPA5_TDLS_ENABLED	BIT(5)
 #define WLAN_EXT_CAPA5_TDLS_PROHIBITED	BIT(6)
 
+#define WLAN_EXT_CAPA8_OPMODE_NOTIF	BIT(6)
+
 /* TDLS specific payload type in the LLC/SNAP header */
 #define WLAN_TDLS_SNAP_RFTYPE	0x2
 
@@ -2114,7 +2154,7 @@ static inline unsigned long ieee80211_tu_to_usec(unsigned long tu)
  * @tim_len: length of the TIM IE
  * @aid: the AID to look for
  */
-static inline bool ieee80211_check_tim(struct ieee80211_tim_ie *tim,
+static inline bool ieee80211_check_tim(const struct ieee80211_tim_ie *tim,
 				       u8 tim_len, u16 aid)
 {
 	u8 mask;
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 3ec70e1681d3..fa2612952c19 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -19,6 +19,7 @@
 #include <linux/nl80211.h>
 #include <linux/if_ether.h>
 #include <linux/ieee80211.h>
+#include <linux/net.h>
 #include <net/regulatory.h>
 
 /**
@@ -99,6 +100,16 @@ enum ieee80211_band {
  * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
  * 	is not permitted.
  * @IEEE80211_CHAN_NO_OFDM: OFDM is not allowed on this channel.
+ * @IEEE80211_CHAN_NO_80MHZ: If the driver supports 80 MHz on the band,
+ *	this flag indicates that an 80 MHz channel cannot use this
+ *	channel as the control or any of the secondary channels.
+ *	This may be due to the driver or due to regulatory bandwidth
+ *	restrictions.
+ * @IEEE80211_CHAN_NO_160MHZ: If the driver supports 160 MHz on the band,
+ *	this flag indicates that an 160 MHz channel cannot use this
+ *	channel as the control or any of the secondary channels.
+ *	This may be due to the driver or due to regulatory bandwidth
+ *	restrictions.
  */
 enum ieee80211_channel_flags {
 	IEEE80211_CHAN_DISABLED		= 1<<0,
@@ -108,11 +119,16 @@ enum ieee80211_channel_flags {
 	IEEE80211_CHAN_NO_HT40PLUS	= 1<<4,
 	IEEE80211_CHAN_NO_HT40MINUS	= 1<<5,
 	IEEE80211_CHAN_NO_OFDM		= 1<<6,
+	IEEE80211_CHAN_NO_80MHZ		= 1<<7,
+	IEEE80211_CHAN_NO_160MHZ	= 1<<8,
 };
 
 #define IEEE80211_CHAN_NO_HT40 \
 	(IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)
 
+#define IEEE80211_DFS_MIN_CAC_TIME_MS		60000
+#define IEEE80211_DFS_MIN_NOP_TIME_MS		(30 * 60 * 1000)
+
 /**
  * struct ieee80211_channel - channel definition
  *
@@ -133,6 +149,9 @@ enum ieee80211_channel_flags {
  *	to enable this, this is useful only on 5 GHz band.
  * @orig_mag: internal use
  * @orig_mpwr: internal use
+ * @dfs_state: current state of this channel. Only relevant if radar is required
+ *	on this channel.
+ * @dfs_state_entered: timestamp (jiffies) when the dfs state was entered.
  */
 struct ieee80211_channel {
 	enum ieee80211_band band;
@@ -145,6 +164,8 @@ struct ieee80211_channel {
 	bool beacon_found;
 	u32 orig_flags;
 	int orig_mag, orig_mpwr;
+	enum nl80211_dfs_state dfs_state;
+	unsigned long dfs_state_entered;
 };
 
 /**
@@ -535,7 +556,7 @@ struct mac_address {
  * struct cfg80211_acl_data - Access control list data
  *
  * @acl_policy: ACL policy to be applied on the station's
-	entry specified by mac_addr
+ *	entry specified by mac_addr
  * @n_acl_entries: Number of MAC address entries passed
  * @mac_addrs: List of MAC addresses of stations to be used for ACL
  */
@@ -568,6 +589,7 @@ struct cfg80211_acl_data {
  * @p2p_opp_ps: P2P opportunistic PS
  * @acl: ACL configuration used by the drivers which has support for
  *	MAC address based access control
+ * @radar_required: set if radar detection is required
  */
 struct cfg80211_ap_settings {
 	struct cfg80211_chan_def chandef;
@@ -585,6 +607,7 @@ struct cfg80211_ap_settings {
 	u8 p2p_ctwindow;
 	bool p2p_opp_ps;
 	const struct cfg80211_acl_data *acl;
+	bool radar_required;
 };
 
 /**
@@ -603,12 +626,14 @@ enum plink_actions {
 /**
  * enum station_parameters_apply_mask - station parameter values to apply
  * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
+ * @STATION_PARAM_APPLY_CAPABILITY: apply new capability
  *
  * Not all station parameters have in-band "no change" signalling,
  * for those that don't these flags will are used.
  */
 enum station_parameters_apply_mask {
 	STATION_PARAM_APPLY_UAPSD = BIT(0),
+	STATION_PARAM_APPLY_CAPABILITY = BIT(1),
 };
 
 /**
@@ -639,6 +664,9 @@ enum station_parameters_apply_mask {
  *	see &enum station_parameters_apply_mask
  * @local_pm: local link-specific mesh power save mode (no change when set
  *	to unknown)
+ * @capability: station capability
+ * @ext_capab: extended capabilities of the station
+ * @ext_capab_len: number of extended capabilities
  */
 struct station_parameters {
 	u8 *supported_rates;
@@ -655,6 +683,9 @@ struct station_parameters {
 	u8 uapsd_queues;
 	u8 max_sp;
 	enum nl80211_mesh_power_mode local_pm;
+	u16 capability;
+	u8 *ext_capab;
+	u8 ext_capab_len;
 };
 
 /**
@@ -666,6 +697,8 @@ struct station_parameters {
  * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
  * @STATION_INFO_RX_BYTES: @rx_bytes filled
  * @STATION_INFO_TX_BYTES: @tx_bytes filled
+ * @STATION_INFO_RX_BYTES64: @rx_bytes filled with 64-bit value
+ * @STATION_INFO_TX_BYTES64: @tx_bytes filled with 64-bit value
  * @STATION_INFO_LLID: @llid filled
  * @STATION_INFO_PLID: @plid filled
  * @STATION_INFO_PLINK_STATE: @plink_state filled
@@ -674,8 +707,6 @@ struct station_parameters {
  *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
  * @STATION_INFO_RX_PACKETS: @rx_packets filled with 32-bit value
  * @STATION_INFO_TX_PACKETS: @tx_packets filled with 32-bit value
- * @STATION_INFO_RX_PACKETS64: @rx_packets filled with 64-bit value
- * @STATION_INFO_TX_PACKETS64: @tx_packets filled with 64-bit value
  * @STATION_INFO_TX_RETRIES: @tx_retries filled
  * @STATION_INFO_TX_FAILED: @tx_failed filled
  * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
@@ -1226,6 +1257,7 @@ struct cfg80211_match_set {
  * @n_match_sets: number of match sets
  * @wiphy: the wiphy this was for
  * @dev: the interface
+ * @scan_start: start time of the scheduled scan
  * @channels: channels to scan
  * @rssi_thold: don't report scan results below this threshold (in s32 dBm)
  */
@@ -1265,11 +1297,13 @@ enum cfg80211_signal_type {
 
 /**
  * struct cfg80211_bss_ie_data - BSS entry IE data
+ * @tsf: TSF contained in the frame that carried these IEs
  * @rcu_head: internal use, for freeing
  * @len: length of the IEs
  * @data: IE data
  */
 struct cfg80211_bss_ies {
+	u64 tsf;
 	struct rcu_head rcu_head;
 	int len;
 	u8 data[];
@@ -1283,27 +1317,33 @@ struct cfg80211_bss_ies {
  *
  * @channel: channel this BSS is on
  * @bssid: BSSID of the BSS
- * @tsf: timestamp of last received update
  * @beacon_interval: the beacon interval as from the frame
  * @capability: the capability field in host byte order
- * @ies: the information elements (Note that there
- *	is no guarantee that these are well-formed!); this is a pointer to
- *	either the beacon_ies or proberesp_ies depending on whether Probe
- *	Response frame has been received
+ * @ies: the information elements (Note that there is no guarantee that these
+ *	are well-formed!); this is a pointer to either the beacon_ies or
+ *	proberesp_ies depending on whether Probe Response frame has been
+ *	received. It is always non-%NULL.
  * @beacon_ies: the information elements from the last Beacon frame
+ *	(implementation note: if @hidden_beacon_bss is set this struct doesn't
+ *	own the beacon_ies, but they're just pointers to the ones from the
+ *	@hidden_beacon_bss struct)
  * @proberesp_ies: the information elements from the last Probe Response frame
+ * @hidden_beacon_bss: in case this BSS struct represents a probe response from
+ *	a BSS that hides the SSID in its beacon, this points to the BSS struct
+ *	that holds the beacon data. @beacon_ies is still valid, of course, and
+ *	points to the same data as hidden_beacon_bss->beacon_ies in that case.
  * @signal: signal strength value (type depends on the wiphy's signal_type)
  * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
  */
 struct cfg80211_bss {
-	u64 tsf;
-
 	struct ieee80211_channel *channel;
 
 	const struct cfg80211_bss_ies __rcu *ies;
 	const struct cfg80211_bss_ies __rcu *beacon_ies;
 	const struct cfg80211_bss_ies __rcu *proberesp_ies;
 
+	struct cfg80211_bss *hidden_beacon_bss;
+
 	s32 signal;
 
 	u16 beacon_interval;
@@ -1404,6 +1444,8 @@ struct cfg80211_assoc_request {
  * @ie: Extra IEs to add to Deauthentication frame or %NULL
  * @ie_len: Length of ie buffer in octets
  * @reason_code: The reason code for the deauthentication
+ * @local_state_change: if set, change local state only and
+ *	do not set a deauth frame
  */
 struct cfg80211_deauth_request {
 	const u8 *bssid;
@@ -1565,6 +1607,7 @@ struct cfg80211_pmksa {
  *	one bit per byte, in same format as nl80211
  * @pattern: bytes to match where bitmask is 1
  * @pattern_len: length of pattern (in bytes)
+ * @pkt_offset: packet offset (in bytes)
  *
  * Internal note: @mask and @pattern are allocated in one chunk of
  * memory, free @mask only!
@@ -1572,6 +1615,42 @@ struct cfg80211_pmksa {
 struct cfg80211_wowlan_trig_pkt_pattern {
 	u8 *mask, *pattern;
 	int pattern_len;
+	int pkt_offset;
+};
+
+/**
+ * struct cfg80211_wowlan_tcp - TCP connection parameters
+ *
+ * @sock: (internal) socket for source port allocation
+ * @src: source IP address
+ * @dst: destination IP address
+ * @dst_mac: destination MAC address
+ * @src_port: source port
+ * @dst_port: destination port
+ * @payload_len: data payload length
+ * @payload: data payload buffer
+ * @payload_seq: payload sequence stamping configuration
+ * @data_interval: interval at which to send data packets
+ * @wake_len: wakeup payload match length
+ * @wake_data: wakeup payload match data
+ * @wake_mask: wakeup payload match mask
+ * @tokens_size: length of the tokens buffer
+ * @payload_tok: payload token usage configuration
+ */
+struct cfg80211_wowlan_tcp {
+	struct socket *sock;
+	__be32 src, dst;
+	u16 src_port, dst_port;
+	u8 dst_mac[ETH_ALEN];
+	int payload_len;
+	const u8 *payload;
+	struct nl80211_wowlan_tcp_data_seq payload_seq;
+	u32 data_interval;
+	u32 wake_len;
+	const u8 *wake_data, *wake_mask;
+	u32 tokens_size;
+	/* must be last, variable member */
+	struct nl80211_wowlan_tcp_data_token payload_tok;
 };
 
 /**
@@ -1588,12 +1667,15 @@ struct cfg80211_wowlan_trig_pkt_pattern {
  * @eap_identity_req: wake up on EAP identity request packet
  * @four_way_handshake: wake up on 4-way handshake
  * @rfkill_release: wake up when rfkill is released
+ * @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
+ *	NULL if not configured.
  */
 struct cfg80211_wowlan {
 	bool any, disconnect, magic_pkt, gtk_rekey_failure,
 	     eap_identity_req, four_way_handshake,
 	     rfkill_release;
 	struct cfg80211_wowlan_trig_pkt_pattern *patterns;
+	struct cfg80211_wowlan_tcp *tcp;
 	int n_patterns;
 };
 
@@ -1613,11 +1695,15 @@ struct cfg80211_wowlan {
  *	frame triggers an 802.3 frame should be reported, for
  *	disconnect due to deauth 802.11 frame. This indicates which
  *	it is.
+ * @tcp_match: TCP wakeup packet received
+ * @tcp_connlost: TCP connection lost or failed to establish
+ * @tcp_nomoretokens: TCP data ran out of tokens
  */
 struct cfg80211_wowlan_wakeup {
 	bool disconnect, magic_pkt, gtk_rekey_failure,
 	     eap_identity_req, four_way_handshake,
-	     rfkill_release, packet_80211;
+	     rfkill_release, packet_80211,
+	     tcp_match, tcp_connlost, tcp_nomoretokens;
 	s32 pattern_idx;
 	u32 packet_present_len, packet_len;
 	const void *packet;
@@ -1853,6 +1939,8 @@ struct cfg80211_gtk_rekey_data {
  *	this new list replaces the existing one. Driver has to clear its ACL
  *	when number of MAC addresses entries is passed as 0. Drivers which
  *	advertise the support for MAC based ACL have to implement this callback.
+ *
+ * @start_radar_detection: Start radar detection in the driver.
  */
 struct cfg80211_ops {
 	int	(*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -2076,6 +2164,10 @@ struct cfg80211_ops {
 
 	int	(*set_mac_acl)(struct wiphy *wiphy, struct net_device *dev,
 			       const struct cfg80211_acl_data *params);
+
+	int	(*start_radar_detection)(struct wiphy *wiphy,
+					 struct net_device *dev,
+					 struct cfg80211_chan_def *chandef);
 };
 
 /*
@@ -2272,6 +2364,14 @@ enum wiphy_wowlan_support_flags {
 	WIPHY_WOWLAN_RFKILL_RELEASE	= BIT(7),
 };
 
+struct wiphy_wowlan_tcp_support {
+	const struct nl80211_wowlan_tcp_data_token_feature *tok;
+	u32 data_payload_max;
+	u32 data_interval_max;
+	u32 wake_payload_max;
+	bool seq;
+};
+
 /**
  * struct wiphy_wowlan_support - WoWLAN support data
  * @flags: see &enum wiphy_wowlan_support_flags
@@ -2279,12 +2379,16 @@ enum wiphy_wowlan_support_flags {
  *	(see nl80211.h for the pattern definition)
  * @pattern_max_len: maximum length of each pattern
  * @pattern_min_len: minimum length of each pattern
+ * @max_pkt_offset: maximum Rx packet offset
+ * @tcp: TCP wakeup support information
  */
 struct wiphy_wowlan_support {
 	u32 flags;
 	int n_patterns;
 	int pattern_max_len;
 	int pattern_min_len;
+	int max_pkt_offset;
+	const struct wiphy_wowlan_tcp_support *tcp;
 };
 
 /**
@@ -2384,6 +2488,14 @@ struct wiphy_wowlan_support {
  *
  * @max_acl_mac_addrs: Maximum number of MAC addresses that the device
  *	supports for ACL.
+ *
+ * @extended_capabilities: extended capabilities supported by the driver,
+ *	additional capabilities might be supported by userspace; these are
+ *	the 802.11 extended capabilities ("Extended Capabilities element")
+ *	and are in the same format as in the information element. See
+ *	802.11-2012 8.4.2.29 for the defined fields.
+ * @extended_capabilities_mask: mask of the valid values
+ * @extended_capabilities_len: length of the extended capabilities
  */
 struct wiphy {
 	/* assign these fields before you register the wiphy */
@@ -2450,6 +2562,9 @@ struct wiphy {
 	 */
 	u32 probe_resp_offload;
 
+	const u8 *extended_capabilities, *extended_capabilities_mask;
+	u8 extended_capabilities_len;
+
 	/* If multiple wiphys are registered and you're handed e.g.
 	 * a regular netdev with assigned ieee80211_ptr, you won't
 	 * know whether it points to a wiphy your driver has registered
@@ -2629,7 +2744,6 @@ struct cfg80211_cached_keys;
  *	the user-set AP, monitor and WDS channel
  * @preset_chan: (private) Used by the internal configuration code to
  *	track the channel to be used for AP later
- * @preset_chantype: (private) the corresponding channel type
  * @bssid: (private) Used by the internal configuration code
  * @ssid: (private) Used by the internal configuration code
  * @ssid_len: (private) Used by the internal configuration code
@@ -2648,6 +2762,8 @@ struct cfg80211_cached_keys;
  *	beacons, 0 when not valid
  * @address: The address for this device, valid only if @netdev is %NULL
  * @p2p_started: true if this is a P2P Device that has been started
+ * @cac_started: true if DFS channel availability check has been started
+ * @cac_start_time: timestamp (jiffies) when the dfs state was entered.
  */
 struct wireless_dev {
 	struct wiphy *wiphy;
@@ -2699,6 +2815,9 @@ struct wireless_dev {
 
 	u32 ap_unexpected_nlportid;
 
+	bool cac_started;
+	unsigned long cac_start_time;
+
 #ifdef CONFIG_CFG80211_WEXT
 	/* wext data */
 	struct {
@@ -3166,19 +3285,21 @@ cfg80211_get_ibss(struct wiphy *wiphy,
 
 /**
  * cfg80211_ref_bss - reference BSS struct
+ * @wiphy: the wiphy this BSS struct belongs to
  * @bss: the BSS struct to reference
  *
  * Increments the refcount of the given BSS struct.
  */
-void cfg80211_ref_bss(struct cfg80211_bss *bss);
+void cfg80211_ref_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 
 /**
  * cfg80211_put_bss - unref BSS struct
+ * @wiphy: the wiphy this BSS struct belongs to
  * @bss: the BSS struct
  *
  * Decrements the refcount of the given BSS struct.
  */
-void cfg80211_put_bss(struct cfg80211_bss *bss);
+void cfg80211_put_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);
 
 /**
  * cfg80211_unlink_bss - unlink BSS from internal data structures
@@ -3686,6 +3807,31 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
 			      gfp_t gfp);
 
 /**
+ * cfg80211_radar_event - radar detection event
+ * @wiphy: the wiphy
+ * @chandef: chandef for the current channel
+ * @gfp: context flags
+ *
+ * This function is called when a radar is detected on the current chanenl.
+ */
+void cfg80211_radar_event(struct wiphy *wiphy,
+			  struct cfg80211_chan_def *chandef, gfp_t gfp);
+
+/**
+ * cfg80211_cac_event - Channel availability check (CAC) event
+ * @netdev: network device
+ * @event: type of event
+ * @gfp: context flags
+ *
+ * This function is called when a Channel availability check (CAC) is finished
+ * or aborted. This must be called to notify the completion of a CAC process,
+ * also by full-MAC drivers.
+ */
+void cfg80211_cac_event(struct net_device *netdev,
+			enum nl80211_radar_event event, gfp_t gfp);
+
+
+/**
  * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
  * @dev: network device
  * @peer: peer's MAC address
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7da11211825d..f7eba1300d82 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -147,10 +147,12 @@ struct ieee80211_low_level_stats {
  * enum ieee80211_chanctx_change - change flag for channel context
  * @IEEE80211_CHANCTX_CHANGE_WIDTH: The channel width changed
  * @IEEE80211_CHANCTX_CHANGE_RX_CHAINS: The number of RX chains changed
+ * @IEEE80211_CHANCTX_CHANGE_RADAR: radar detection flag changed
  */
 enum ieee80211_chanctx_change {
 	IEEE80211_CHANCTX_CHANGE_WIDTH		= BIT(0),
 	IEEE80211_CHANCTX_CHANGE_RX_CHAINS	= BIT(1),
+	IEEE80211_CHANCTX_CHANGE_RADAR		= BIT(2),
 };
 
 /**
@@ -165,6 +167,7 @@ enum ieee80211_chanctx_change {
  * @rx_chains_dynamic: The number of RX chains that must be enabled
  *	after RTS/CTS handshake to receive SMPS MIMO transmissions;
  *	this will always be >= @rx_chains_static.
+ * @radar_enabled: whether radar detection is enabled on this channel.
  * @drv_priv: data area for driver use, will always be aligned to
  *	sizeof(void *), size is determined in hw information.
  */
@@ -173,6 +176,8 @@ struct ieee80211_chanctx_conf {
 
 	u8 rx_chains_static, rx_chains_dynamic;
 
+	bool radar_enabled;
+
 	u8 drv_priv[0] __aligned(sizeof(void *));
 };
 
@@ -210,6 +215,9 @@ struct ieee80211_chanctx_conf {
  *	changed (currently only in P2P client mode, GO mode will be later)
  * @BSS_CHANGED_DTIM_PERIOD: the DTIM period value was changed (set when
  *	it becomes valid, managed mode only)
+ * @BSS_CHANGED_BANDWIDTH: The bandwidth used by this interface changed,
+ *	note that this is only called when it changes after the channel
+ *	context had been assigned.
  */
 enum ieee80211_bss_change {
 	BSS_CHANGED_ASSOC		= 1<<0,
@@ -233,6 +241,7 @@ enum ieee80211_bss_change {
 	BSS_CHANGED_TXPOWER		= 1<<18,
 	BSS_CHANGED_P2P_PS		= 1<<19,
 	BSS_CHANGED_DTIM_PERIOD		= 1<<20,
+	BSS_CHANGED_BANDWIDTH		= 1<<21,
 
 	/* when adding here, make sure to change ieee80211_reconfig */
 };
@@ -277,9 +286,16 @@ enum ieee80211_rssi_event {
  *	valid in station mode only if after the driver was notified
  *	with the %BSS_CHANGED_DTIM_PERIOD flag, will be non-zero then.
  * @sync_tsf: last beacon's/probe response's TSF timestamp (could be old
- *	as it may have been received during scanning long ago)
+ *	as it may have been received during scanning long ago). If the
+ *	HW flag %IEEE80211_HW_TIMING_BEACON_ONLY is set, then this can
+ *	only come from a beacon, but might not become valid until after
+ *	association when a beacon is received (which is notified with the
+ *	%BSS_CHANGED_DTIM flag.)
  * @sync_device_ts: the device timestamp corresponding to the sync_tsf,
  *	the driver/device can use this to calculate synchronisation
+ *	(see @sync_tsf)
+ * @sync_dtim_count: Only valid when %IEEE80211_HW_TIMING_BEACON_ONLY
+ *	is requested, see @sync_tsf/@sync_device_ts.
  * @beacon_int: beacon interval
  * @assoc_capability: capabilities taken from assoc resp
  * @basic_rates: bitmap of basic rates, each bit stands for an
@@ -331,6 +347,7 @@ struct ieee80211_bss_conf {
 	u16 assoc_capability;
 	u64 sync_tsf;
 	u32 sync_device_ts;
+	u8 sync_dtim_count;
 	u32 basic_rates;
 	int mcast_rate[IEEE80211_NUM_BANDS];
 	u16 ht_operation_mode;
@@ -391,6 +408,9 @@ struct ieee80211_bss_conf {
  * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be
  *	set by rate control algorithms to indicate probe rate, will
  *	be cleared for fragmented frames (except on the last fragment)
+ * @IEEE80211_TX_INTFL_OFFCHAN_TX_OK: Internal to mac80211. Used to indicate
+ *	that a frame can be transmitted while the queues are stopped for
+ *	off-channel operation.
  * @IEEE80211_TX_INTFL_NEED_TXPROCESSING: completely internal to mac80211,
  *	used to indicate that a pending frame requires TX processing before
  *	it can be sent out.
@@ -456,6 +476,7 @@ enum mac80211_tx_control_flags {
 	IEEE80211_TX_STAT_AMPDU			= BIT(10),
 	IEEE80211_TX_STAT_AMPDU_NO_BACK		= BIT(11),
 	IEEE80211_TX_CTL_RATE_CTRL_PROBE	= BIT(12),
+	IEEE80211_TX_INTFL_OFFCHAN_TX_OK	= BIT(13),
 	IEEE80211_TX_INTFL_NEED_TXPROCESSING	= BIT(14),
 	IEEE80211_TX_INTFL_RETRIED		= BIT(15),
 	IEEE80211_TX_INTFL_DONT_ENCRYPT		= BIT(16),
@@ -955,6 +976,7 @@ enum ieee80211_smps_mode {
  *
  * @channel: the channel to tune to
  * @channel_type: the channel (HT) type
+ * @radar_enabled: whether radar detection is enabled
  *
  * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame
  *    (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11,
@@ -981,6 +1003,7 @@ struct ieee80211_conf {
 
 	struct ieee80211_channel *channel;
 	enum nl80211_channel_type channel_type;
+	bool radar_enabled;
 	enum ieee80211_smps_mode smps_mode;
 };
 
@@ -1178,6 +1201,24 @@ enum ieee80211_sta_state {
 };
 
 /**
+ * enum ieee80211_sta_rx_bandwidth - station RX bandwidth
+ * @IEEE80211_STA_RX_BW_20: station can only receive 20 MHz
+ * @IEEE80211_STA_RX_BW_40: station can receive up to 40 MHz
+ * @IEEE80211_STA_RX_BW_80: station can receive up to 80 MHz
+ * @IEEE80211_STA_RX_BW_160: station can receive up to 160 MHz
+ *	(including 80+80 MHz)
+ *
+ * Implementation note: 20 must be zero to be initialized
+ *	correctly, the values must be sorted.
+ */
+enum ieee80211_sta_rx_bandwidth {
+	IEEE80211_STA_RX_BW_20 = 0,
+	IEEE80211_STA_RX_BW_40,
+	IEEE80211_STA_RX_BW_80,
+	IEEE80211_STA_RX_BW_160,
+};
+
+/**
  * struct ieee80211_sta - station table entry
  *
  * A station table entry represents a station we are possibly
@@ -1199,6 +1240,12 @@ enum ieee80211_sta_state {
  * @uapsd_queues: bitmap of queues configured for uapsd. Only valid
  *	if wme is supported.
  * @max_sp: max Service Period. Only valid if wme is supported.
+ * @bandwidth: current bandwidth the station can receive with
+ * @rx_nss: in HT/VHT, the maximum number of spatial streams the
+ *	station can receive at the moment, changed by operating mode
+ *	notifications and capabilities. The value is only valid after
+ *	the station moves to associated state.
+ * @smps_mode: current SMPS mode (off, static or dynamic)
  */
 struct ieee80211_sta {
 	u32 supp_rates[IEEE80211_NUM_BANDS];
@@ -1209,6 +1256,9 @@ struct ieee80211_sta {
 	bool wme;
 	u8 uapsd_queues;
 	u8 max_sp;
+	u8 rx_nss;
+	enum ieee80211_sta_rx_bandwidth bandwidth;
+	enum ieee80211_smps_mode smps_mode;
 
 	/* must be last */
 	u8 drv_priv[0] __aligned(sizeof(void *));
@@ -1355,10 +1405,6 @@ struct ieee80211_tx_control {
  *	setup strictly in HW. mac80211 should not attempt to do this in
  *	software.
  *
- * @IEEE80211_HW_SCAN_WHILE_IDLE: The device can do hw scan while
- *	being idle (i.e. mac80211 doesn't have to go idle-off during the
- *	the scan).
- *
  * @IEEE80211_HW_WANT_MONITOR_VIF: The driver would like to be informed of
  *	a virtual monitor interface when monitor interfaces are the only
  *	active interfaces.
@@ -1371,6 +1417,9 @@ struct ieee80211_tx_control {
  * @IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF: Use the P2P Device address for any
  *	P2P Interface. This will be honoured even if more than one interface
  *	is supported.
+ *
+ * @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames
+ *	only, to allow getting TBTT of a DTIM beacon.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_HAS_RATE_CONTROL			= 1<<0,
@@ -1397,8 +1446,8 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_SUPPORTS_PER_STA_GTK		= 1<<21,
 	IEEE80211_HW_AP_LINK_PS				= 1<<22,
 	IEEE80211_HW_TX_AMPDU_SETUP_IN_HW		= 1<<23,
-	IEEE80211_HW_SCAN_WHILE_IDLE			= 1<<24,
 	IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF		= 1<<25,
+	IEEE80211_HW_TIMING_BEACON_ONLY			= 1<<26,
 };
 
 /**
@@ -1683,15 +1732,6 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb);
  * dynamic PS feature in stack and will just keep %IEEE80211_CONF_PS
  * enabled whenever user has enabled powersave.
  *
- * Some hardware need to toggle a single shared antenna between WLAN and
- * Bluetooth to facilitate co-existence. These types of hardware set
- * limitations on the use of host controlled dynamic powersave whenever there
- * is simultaneous WLAN and Bluetooth traffic. For these types of hardware, the
- * driver may request temporarily going into full power save, in order to
- * enable toggling the antenna between BT and WLAN. If the driver requests
- * disabling dynamic powersave, the @dynamic_ps_timeout value will be
- * temporarily set to zero until the driver re-enables dynamic powersave.
- *
  * Driver informs U-APSD client support by enabling
  * %IEEE80211_HW_SUPPORTS_UAPSD flag. The mode is configured through the
  * uapsd paramater in conf_tx() operation. Hardware needs to send the QoS
@@ -2077,16 +2117,21 @@ enum ieee80211_frame_release_type {
  * enum ieee80211_rate_control_changed - flags to indicate what changed
  *
  * @IEEE80211_RC_BW_CHANGED: The bandwidth that can be used to transmit
- *	to this station changed.
+ *	to this station changed. The actual bandwidth is in the station
+ *	information -- for HT20/40 the IEEE80211_HT_CAP_SUP_WIDTH_20_40
+ *	flag changes, for HT and VHT the bandwidth field changes.
  * @IEEE80211_RC_SMPS_CHANGED: The SMPS state of the station changed.
  * @IEEE80211_RC_SUPP_RATES_CHANGED: The supported rate set of this peer
  *	changed (in IBSS mode) due to discovering more information about
  *	the peer.
+ * @IEEE80211_RC_NSS_CHANGED: N_SS (number of spatial streams) was changed
+ *	by the peer
  */
 enum ieee80211_rate_control_changed {
 	IEEE80211_RC_BW_CHANGED		= BIT(0),
 	IEEE80211_RC_SMPS_CHANGED	= BIT(1),
 	IEEE80211_RC_SUPP_RATES_CHANGED	= BIT(2),
+	IEEE80211_RC_NSS_CHANGED	= BIT(3),
 };
 
 /**
@@ -2167,6 +2212,18 @@ enum ieee80211_rate_control_changed {
  *	MAC address of the device going away.
  *	Hence, this callback must be implemented. It can sleep.
  *
+ * @add_interface_debugfs: Drivers can use this callback to add debugfs files
+ *	when a vif is added to mac80211. This callback and
+ *	@remove_interface_debugfs should be within a CONFIG_MAC80211_DEBUGFS
+ *	conditional. @remove_interface_debugfs must be provided for cleanup.
+ *	This callback can sleep.
+ *
+ * @remove_interface_debugfs: Remove the debugfs files which were added using
+ *	@add_interface_debugfs. This callback must remove all debugfs entries
+ *	that were added because mac80211 only removes interface debugfs when the
+ *	interface is destroyed, not when it is removed from the driver.
+ *	This callback can sleep.
+ *
  * @config: Handler for configuration requests. IEEE 802.11 code calls this
  *	function to change hardware configuration, e.g., channel.
  *	This function should never fail but returns a negative error code
@@ -2580,6 +2637,12 @@ struct ieee80211_ops {
 				   struct ieee80211_vif *vif,
 				   struct ieee80211_sta *sta,
 				   struct dentry *dir);
+	void (*add_interface_debugfs)(struct ieee80211_hw *hw,
+				      struct ieee80211_vif *vif,
+				      struct dentry *dir);
+	void (*remove_interface_debugfs)(struct ieee80211_hw *hw,
+					 struct ieee80211_vif *vif,
+					 struct dentry *dir);
 #endif
 	void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 			enum sta_notify_cmd, struct ieee80211_sta *sta);
@@ -3909,36 +3972,6 @@ void ieee80211_connection_loss(struct ieee80211_vif *vif);
 void ieee80211_resume_disconnect(struct ieee80211_vif *vif);
 
 /**
- * ieee80211_disable_dyn_ps - force mac80211 to temporarily disable dynamic psm
- *
- * @vif: &struct ieee80211_vif pointer from the add_interface callback.
- *
- * Some hardware require full power save to manage simultaneous BT traffic
- * on the WLAN frequency. Full PSM is required periodically, whenever there are
- * burst of BT traffic. The hardware gets information of BT traffic via
- * hardware co-existence lines, and consequentially requests mac80211 to
- * (temporarily) enter full psm.
- * This function will only temporarily disable dynamic PS, not enable PSM if
- * it was not already enabled.
- * The driver must make sure to re-enable dynamic PS using
- * ieee80211_enable_dyn_ps() if the driver has disabled it.
- *
- */
-void ieee80211_disable_dyn_ps(struct ieee80211_vif *vif);
-
-/**
- * ieee80211_enable_dyn_ps - restore dynamic psm after being disabled
- *
- * @vif: &struct ieee80211_vif pointer from the add_interface callback.
- *
- * This function restores dynamic PS after being temporarily disabled via
- * ieee80211_disable_dyn_ps(). Each ieee80211_disable_dyn_ps() call must
- * be coupled with an eventual call to this function.
- *
- */
-void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif);
-
-/**
  * ieee80211_cqm_rssi_notify - inform a configured connection quality monitoring
  *	rssi threshold triggered
  *
@@ -3955,6 +3988,13 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
 			       gfp_t gfp);
 
 /**
+ * ieee80211_radar_detected - inform that a radar was detected
+ *
+ * @hw: pointer as obtained from ieee80211_alloc_hw()
+ */
+void ieee80211_radar_detected(struct ieee80211_hw *hw);
+
+/**
  * ieee80211_chswitch_done - Complete channel switch process
  * @vif: &struct ieee80211_vif pointer from the add_interface callback.
  * @success: make the channel switch successful or not
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 9a2ecdc4136c..c46bb016f4e4 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -603,6 +603,14 @@
  *	command is used in AP/P2P GO mode. Driver has to make sure to clear its
  *	ACL list during %NL80211_CMD_STOP_AP.
  *
+ * @NL80211_CMD_RADAR_DETECT: Start a Channel availability check (CAC). Once
+ *	a radar is detected or the channel availability scan (CAC) has finished
+ *	or was aborted, or a radar was detected, usermode will be notified with
+ *	this event. This command is also used to notify userspace about radars
+ *	while operating on this channel.
+ *	%NL80211_ATTR_RADAR_EVENT is used to inform about the type of the
+ *	event.
+ *
  * @NL80211_CMD_MAX: highest used command number
  * @__NL80211_CMD_AFTER_LAST: internal use
  */
@@ -755,6 +763,8 @@ enum nl80211_commands {
 
 	NL80211_CMD_SET_MAC_ACL,
 
+	NL80211_CMD_RADAR_DETECT,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -1342,6 +1352,22 @@ enum nl80211_commands {
  *	number of MAC addresses that a device can support for MAC
  *	ACL.
  *
+ * @NL80211_ATTR_RADAR_EVENT: Type of radar event for notification to userspace,
+ *	contains a value of enum nl80211_radar_event (u32).
+ *
+ * @NL80211_ATTR_EXT_CAPA: 802.11 extended capabilities that the kernel driver
+ *	has and handles. The format is the same as the IE contents. See
+ *	802.11-2012 8.4.2.29 for more information.
+ * @NL80211_ATTR_EXT_CAPA_MASK: Extended capabilities that the kernel driver
+ *	has set in the %NL80211_ATTR_EXT_CAPA value, for multibit fields.
+ *
+ * @NL80211_ATTR_STA_CAPABILITY: Station capabilities (u16) are advertised to
+ *	the driver, e.g., to enable TDLS power save (PU-APSD).
+ *
+ * @NL80211_ATTR_STA_EXT_CAPABILITY: Station extended capabilities are
+ *	advertised to the driver, e.g., to enable TDLS off channel operations
+ *	and PU-APSD.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1620,6 +1646,14 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_MAC_ACL_MAX,
 
+	NL80211_ATTR_RADAR_EVENT,
+
+	NL80211_ATTR_EXT_CAPA,
+	NL80211_ATTR_EXT_CAPA_MASK,
+
+	NL80211_ATTR_STA_CAPABILITY,
+	NL80211_ATTR_STA_EXT_CAPABILITY,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
@@ -2022,6 +2056,20 @@ enum nl80211_band_attr {
  *	on this channel in current regulatory domain.
  * @NL80211_FREQUENCY_ATTR_MAX_TX_POWER: Maximum transmission power in mBm
  *	(100 * dBm).
+ * @NL80211_FREQUENCY_ATTR_DFS_STATE: current state for DFS
+ *	(enum nl80211_dfs_state)
+ * @NL80211_FREQUENCY_ATTR_DFS_TIME: time in miliseconds for how long
+ *	this channel is in this DFS state.
+ * @NL80211_FREQUENCY_ATTR_NO_HT40_MINUS: HT40- isn't possible with this
+ *	channel as the control channel
+ * @NL80211_FREQUENCY_ATTR_NO_HT40_PLUS: HT40+ isn't possible with this
+ *	channel as the control channel
+ * @NL80211_FREQUENCY_ATTR_NO_80MHZ: any 80 MHz channel using this channel
+ *	as the primary or any of the secondary channels isn't possible,
+ *	this includes 80+80 channels
+ * @NL80211_FREQUENCY_ATTR_NO_160MHZ: any 160 MHz (but not 80+80) channel
+ *	using this channel as the primary or any of the secondary channels
+ *	isn't possible
  * @NL80211_FREQUENCY_ATTR_MAX: highest frequency attribute number
  *	currently defined
  * @__NL80211_FREQUENCY_ATTR_AFTER_LAST: internal use
@@ -2034,6 +2082,12 @@ enum nl80211_frequency_attr {
 	NL80211_FREQUENCY_ATTR_NO_IBSS,
 	NL80211_FREQUENCY_ATTR_RADAR,
 	NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
+	NL80211_FREQUENCY_ATTR_DFS_STATE,
+	NL80211_FREQUENCY_ATTR_DFS_TIME,
+	NL80211_FREQUENCY_ATTR_NO_HT40_MINUS,
+	NL80211_FREQUENCY_ATTR_NO_HT40_PLUS,
+	NL80211_FREQUENCY_ATTR_NO_80MHZ,
+	NL80211_FREQUENCY_ATTR_NO_160MHZ,
 
 	/* keep last */
 	__NL80211_FREQUENCY_ATTR_AFTER_LAST,
@@ -2906,10 +2960,12 @@ enum nl80211_tx_power_setting {
  *	corresponds to the lowest-order bit in the second byte of the mask.
  *	For example: The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where
  *	xx indicates "don't care") would be represented by a pattern of
- *	twelve zero bytes, and a mask of "0xed,0x07".
+ *	twelve zero bytes, and a mask of "0xed,0x01".
  *	Note that the pattern matching is done as though frames were not
  *	802.11 frames but 802.3 frames, i.e. the frame is fully unpacked
  *	first (including SNAP header unpacking) and then matched.
+ * @NL80211_WOWLAN_PKTPAT_OFFSET: packet offset, pattern is matched after
+ *	these fixed number of bytes of received packet
  * @NUM_NL80211_WOWLAN_PKTPAT: number of attributes
  * @MAX_NL80211_WOWLAN_PKTPAT: max attribute number
  */
@@ -2917,6 +2973,7 @@ enum nl80211_wowlan_packet_pattern_attr {
 	__NL80211_WOWLAN_PKTPAT_INVALID,
 	NL80211_WOWLAN_PKTPAT_MASK,
 	NL80211_WOWLAN_PKTPAT_PATTERN,
+	NL80211_WOWLAN_PKTPAT_OFFSET,
 
 	NUM_NL80211_WOWLAN_PKTPAT,
 	MAX_NL80211_WOWLAN_PKTPAT = NUM_NL80211_WOWLAN_PKTPAT - 1,
@@ -2927,6 +2984,7 @@ enum nl80211_wowlan_packet_pattern_attr {
  * @max_patterns: maximum number of patterns supported
  * @min_pattern_len: minimum length of each pattern
  * @max_pattern_len: maximum length of each pattern
+ * @max_pkt_offset: maximum Rx packet offset
  *
  * This struct is carried in %NL80211_WOWLAN_TRIG_PKT_PATTERN when
  * that is part of %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED in the
@@ -2936,6 +2994,7 @@ struct nl80211_wowlan_pattern_support {
 	__u32 max_patterns;
 	__u32 min_pattern_len;
 	__u32 max_pattern_len;
+	__u32 max_pkt_offset;
 } __attribute__((packed));
 
 /**
@@ -2951,9 +3010,10 @@ struct nl80211_wowlan_pattern_support {
  * @NL80211_WOWLAN_TRIG_PKT_PATTERN: wake up on the specified packet patterns
  *	which are passed in an array of nested attributes, each nested attribute
  *	defining a with attributes from &struct nl80211_wowlan_trig_pkt_pattern.
- *	Each pattern defines a wakeup packet. The matching is done on the MSDU,
- *	i.e. as though the packet was an 802.3 packet, so the pattern matching
- *	is done after the packet is converted to the MSDU.
+ *	Each pattern defines a wakeup packet. Packet offset is associated with
+ *	each pattern which is used while matching the pattern. The matching is
+ *	done on the MSDU, i.e. as though the packet was an 802.3 packet, so the
+ *	pattern matching is done after the packet is converted to the MSDU.
  *
  *	In %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, it is a binary attribute
  *	carrying a &struct nl80211_wowlan_pattern_support.
@@ -2985,6 +3045,17 @@ struct nl80211_wowlan_pattern_support {
  * @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN: Original length of the 802.3
  *	packet, may be bigger than the @NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023
  *	attribute if the packet was truncated somewhere.
+ * @NL80211_WOWLAN_TRIG_TCP_CONNECTION: TCP connection wake, see DOC section
+ *	"TCP connection wakeup" for more details. This is a nested attribute
+ *	containing the exact information for establishing and keeping alive
+ *	the TCP connection.
+ * @NL80211_WOWLAN_TRIG_TCP_WAKEUP_MATCH: For wakeup reporting only, the
+ *	wakeup packet was received on the TCP connection
+ * @NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST: For wakeup reporting only, the
+ *	TCP connection was lost or failed to be established
+ * @NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS: For wakeup reporting only,
+ *	the TCP connection ran out of tokens to use for data to send to the
+ *	service
  * @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
  * @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
  *
@@ -3006,6 +3077,10 @@ enum nl80211_wowlan_triggers {
 	NL80211_WOWLAN_TRIG_WAKEUP_PKT_80211_LEN,
 	NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023,
 	NL80211_WOWLAN_TRIG_WAKEUP_PKT_8023_LEN,
+	NL80211_WOWLAN_TRIG_TCP_CONNECTION,
+	NL80211_WOWLAN_TRIG_WAKEUP_TCP_MATCH,
+	NL80211_WOWLAN_TRIG_WAKEUP_TCP_CONNLOST,
+	NL80211_WOWLAN_TRIG_WAKEUP_TCP_NOMORETOKENS,
 
 	/* keep last */
 	NUM_NL80211_WOWLAN_TRIG,
@@ -3013,6 +3088,116 @@ enum nl80211_wowlan_triggers {
 };
 
 /**
+ * DOC: TCP connection wakeup
+ *
+ * Some devices can establish a TCP connection in order to be woken up by a
+ * packet coming in from outside their network segment, or behind NAT. If
+ * configured, the device will establish a TCP connection to the given
+ * service, and periodically send data to that service. The first data
+ * packet is usually transmitted after SYN/ACK, also ACKing the SYN/ACK.
+ * The data packets can optionally include a (little endian) sequence
+ * number (in the TCP payload!) that is generated by the device, and, also
+ * optionally, a token from a list of tokens. This serves as a keep-alive
+ * with the service, and for NATed connections, etc.
+ *
+ * During this keep-alive period, the server doesn't send any data to the
+ * client. When receiving data, it is compared against the wakeup pattern
+ * (and mask) and if it matches, the host is woken up. Similarly, if the
+ * connection breaks or cannot be established to start with, the host is
+ * also woken up.
+ *
+ * Developer's note: ARP offload is required for this, otherwise TCP
+ * response packets might not go through correctly.
+ */
+
+/**
+ * struct nl80211_wowlan_tcp_data_seq - WoWLAN TCP data sequence
+ * @start: starting value
+ * @offset: offset of sequence number in packet
+ * @len: length of the sequence value to write, 1 through 4
+ *
+ * Note: don't confuse with the TCP sequence number(s), this is for the
+ * keepalive packet payload. The actual value is written into the packet
+ * in little endian.
+ */
+struct nl80211_wowlan_tcp_data_seq {
+	__u32 start, offset, len;
+};
+
+/**
+ * struct nl80211_wowlan_tcp_data_token - WoWLAN TCP data token config
+ * @offset: offset of token in packet
+ * @len: length of each token
+ * @token_stream: stream of data to be used for the tokens, the length must
+ *	be a multiple of @len for this to make sense
+ */
+struct nl80211_wowlan_tcp_data_token {
+	__u32 offset, len;
+	__u8 token_stream[];
+};
+
+/**
+ * struct nl80211_wowlan_tcp_data_token_feature - data token features
+ * @min_len: minimum token length
+ * @max_len: maximum token length
+ * @bufsize: total available token buffer size (max size of @token_stream)
+ */
+struct nl80211_wowlan_tcp_data_token_feature {
+	__u32 min_len, max_len, bufsize;
+};
+
+/**
+ * enum nl80211_wowlan_tcp_attrs - WoWLAN TCP connection parameters
+ * @__NL80211_WOWLAN_TCP_INVALID: invalid number for nested attributes
+ * @NL80211_WOWLAN_TCP_SRC_IPV4: source IPv4 address (in network byte order)
+ * @NL80211_WOWLAN_TCP_DST_IPV4: destination IPv4 address
+ *	(in network byte order)
+ * @NL80211_WOWLAN_TCP_DST_MAC: destination MAC address, this is given because
+ *	route lookup when configured might be invalid by the time we suspend,
+ *	and doing a route lookup when suspending is no longer possible as it
+ *	might require ARP querying.
+ * @NL80211_WOWLAN_TCP_SRC_PORT: source port (u16); optional, if not given a
+ *	socket and port will be allocated
+ * @NL80211_WOWLAN_TCP_DST_PORT: destination port (u16)
+ * @NL80211_WOWLAN_TCP_DATA_PAYLOAD: data packet payload, at least one byte.
+ *	For feature advertising, a u32 attribute holding the maximum length
+ *	of the data payload.
+ * @NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ: data packet sequence configuration
+ *	(if desired), a &struct nl80211_wowlan_tcp_data_seq. For feature
+ *	advertising it is just a flag
+ * @NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN: data packet token configuration,
+ *	see &struct nl80211_wowlan_tcp_data_token and for advertising see
+ *	&struct nl80211_wowlan_tcp_data_token_feature.
+ * @NL80211_WOWLAN_TCP_DATA_INTERVAL: data interval in seconds, maximum
+ *	interval in feature advertising (u32)
+ * @NL80211_WOWLAN_TCP_WAKE_PAYLOAD: wake packet payload, for advertising a
+ *	u32 attribute holding the maximum length
+ * @NL80211_WOWLAN_TCP_WAKE_MASK: Wake packet payload mask, not used for
+ *	feature advertising. The mask works like @NL80211_WOWLAN_PKTPAT_MASK
+ *	but on the TCP payload only.
+ * @NUM_NL80211_WOWLAN_TCP: number of TCP attributes
+ * @MAX_NL80211_WOWLAN_TCP: highest attribute number
+ */
+enum nl80211_wowlan_tcp_attrs {
+	__NL80211_WOWLAN_TCP_INVALID,
+	NL80211_WOWLAN_TCP_SRC_IPV4,
+	NL80211_WOWLAN_TCP_DST_IPV4,
+	NL80211_WOWLAN_TCP_DST_MAC,
+	NL80211_WOWLAN_TCP_SRC_PORT,
+	NL80211_WOWLAN_TCP_DST_PORT,
+	NL80211_WOWLAN_TCP_DATA_PAYLOAD,
+	NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ,
+	NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN,
+	NL80211_WOWLAN_TCP_DATA_INTERVAL,
+	NL80211_WOWLAN_TCP_WAKE_PAYLOAD,
+	NL80211_WOWLAN_TCP_WAKE_MASK,
+
+	/* keep last */
+	NUM_NL80211_WOWLAN_TCP,
+	MAX_NL80211_WOWLAN_TCP = NUM_NL80211_WOWLAN_TCP - 1
+};
+
+/**
  * enum nl80211_iface_limit_attrs - limit attributes
  * @NL80211_IFACE_LIMIT_UNSPEC: (reserved)
  * @NL80211_IFACE_LIMIT_MAX: maximum number of interfaces that
@@ -3269,6 +3454,8 @@ enum nl80211_ap_sme_features {
  *	Note that even for drivers that support this, the default is to add
  *	stations in authenticated/associated state, so to add unauthenticated
  *	stations the authenticated/associated bits have to be set in the mask.
+ * @NL80211_FEATURE_ADVERTISE_CHAN_LIMITS: cfg80211 advertises channel limits
+ *	(HT40, VHT 80/160 MHz) if this flag is set
  */
 enum nl80211_feature_flags {
 	NL80211_FEATURE_SK_TX_STATUS			= 1 << 0,
@@ -3284,7 +3471,9 @@ enum nl80211_feature_flags {
 	NL80211_FEATURE_NEED_OBSS_SCAN			= 1 << 10,
 	NL80211_FEATURE_P2P_GO_CTWIN			= 1 << 11,
 	NL80211_FEATURE_P2P_GO_OPPPS			= 1 << 12,
-	NL80211_FEATURE_FULL_AP_CLIENT_STATE		= 1 << 13,
+	/* bit 13 is reserved */
+	NL80211_FEATURE_ADVERTISE_CHAN_LIMITS		= 1 << 14,
+	NL80211_FEATURE_FULL_AP_CLIENT_STATE		= 1 << 15,
 };
 
 /**
@@ -3358,4 +3547,44 @@ enum nl80211_acl_policy {
 	NL80211_ACL_POLICY_DENY_UNLESS_LISTED,
 };
 
+/**
+ * enum nl80211_radar_event - type of radar event for DFS operation
+ *
+ * Type of event to be used with NL80211_ATTR_RADAR_EVENT to inform userspace
+ * about detected radars or success of the channel available check (CAC)
+ *
+ * @NL80211_RADAR_DETECTED: A radar pattern has been detected. The channel is
+ *	now unusable.
+ * @NL80211_RADAR_CAC_FINISHED: Channel Availability Check has been finished,
+ *	the channel is now available.
+ * @NL80211_RADAR_CAC_ABORTED: Channel Availability Check has been aborted, no
+ *	change to the channel status.
+ * @NL80211_RADAR_NOP_FINISHED: The Non-Occupancy Period for this channel is
+ *	over, channel becomes usable.
+ */
+enum nl80211_radar_event {
+	NL80211_RADAR_DETECTED,
+	NL80211_RADAR_CAC_FINISHED,
+	NL80211_RADAR_CAC_ABORTED,
+	NL80211_RADAR_NOP_FINISHED,
+};
+
+/**
+ * enum nl80211_dfs_state - DFS states for channels
+ *
+ * Channel states used by the DFS code.
+ *
+ * @IEEE80211_DFS_USABLE: The channel can be used, but channel availability
+ *	check (CAC) must be performed before using it for AP or IBSS.
+ * @IEEE80211_DFS_UNAVAILABLE: A radar has been detected on this channel, it
+ *	is therefore marked as not available.
+ * @IEEE80211_DFS_AVAILABLE: The channel has been CAC checked and is available.
+ */
+
+enum nl80211_dfs_state {
+	NL80211_DFS_USABLE,
+	NL80211_DFS_UNAVAILABLE,
+	NL80211_DFS_AVAILABLE,
+};
+
 #endif /* __LINUX_NL80211_H */