15 files changed, 184 insertions, 15 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index d01f1cb3cfc0..405317f9c064 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -899,6 +899,9 @@ struct xdp_md {
 	__u32 data;
 	__u32 data_end;
 	__u32 data_meta;
+	/* Below access go though struct xdp_rxq_info */
+	__u32 ingress_ifindex; /* rxq->dev->ifindex */
+	__u32 rx_queue_index;  /* rxq->queue_index  */
 };
 
 enum sk_action {
@@ -921,6 +924,9 @@ struct bpf_prog_info {
 	__u32 nr_map_ids;
 	__aligned_u64 map_ids;
 	char name[BPF_OBJ_NAME_LEN];
+	__u32 ifindex;
+	__u64 netns_dev;
+	__u64 netns_ino;
 } __attribute__((aligned(8)));
 
 struct bpf_map_info {
@@ -1012,7 +1018,8 @@ struct bpf_perf_event_value {
 #define BPF_DEVCG_DEV_CHAR	(1ULL << 1)
 
 struct bpf_cgroup_dev_ctx {
-	__u32 access_type; /* (access << 16) | type */
+	/* access_type encoded as (BPF_DEVCG_ACC_* << 16) | BPF_DEVCG_DEV_* */
+	__u32 access_type;
 	__u32 major;
 	__u32 minor;
 };
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 87b7529fcdfe..f8cb5760ea4f 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -23,6 +23,7 @@
 #define _UAPI_LINUX_IF_ETHER_H
 
 #include <linux/types.h>
+#include <linux/libc-compat.h>
 
 /*
  *	IEEE 802.3 Ethernet magic constants.  The frame sizes omit the preamble
@@ -150,11 +151,13 @@
  *	This is an Ethernet frame header.
  */
 
+#if __UAPI_DEF_ETHHDR
 struct ethhdr {
 	unsigned char	h_dest[ETH_ALEN];	/* destination eth addr	*/
 	unsigned char	h_source[ETH_ALEN];	/* source ether addr	*/
 	__be16		h_proto;		/* packet type ID field	*/
 } __attribute__((packed));
+#endif
 
 
 #endif /* _UAPI_LINUX_IF_ETHER_H */
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 19fc02660e0c..f8f04fed6186 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -732,6 +732,8 @@ enum {
 	IFLA_VF_STATS_BROADCAST,
 	IFLA_VF_STATS_MULTICAST,
 	IFLA_VF_STATS_PAD,
+	IFLA_VF_STATS_RX_DROPPED,
+	IFLA_VF_STATS_TX_DROPPED,
 	__IFLA_VF_STATS_MAX,
 };
 
diff --git a/include/uapi/linux/if_macsec.h b/include/uapi/linux/if_macsec.h
index 719d243471f4..2e522835a4af 100644
--- a/include/uapi/linux/if_macsec.h
+++ b/include/uapi/linux/if_macsec.h
@@ -18,12 +18,17 @@
 #define MACSEC_GENL_NAME "macsec"
 #define MACSEC_GENL_VERSION 1
 
-#define MACSEC_MAX_KEY_LEN 128
+#define MACSEC_MAX_KEY_LEN 256
 
 #define MACSEC_KEYID_LEN 16
 
-#define MACSEC_DEFAULT_CIPHER_ID   0x0080020001000001ULL
-#define MACSEC_DEFAULT_CIPHER_ALT  0x0080C20001000001ULL
+/* cipher IDs as per IEEE802.1AEbn-2011 */
+#define MACSEC_CIPHER_ID_GCM_AES_128 0x0080C20001000001ULL
+#define MACSEC_CIPHER_ID_GCM_AES_256 0x0080C20001000002ULL
+
+#define MACSEC_DEFAULT_CIPHER_ID     MACSEC_CIPHER_ID_GCM_AES_128
+/* deprecated cipher ID for GCM-AES-128 */
+#define MACSEC_DEFAULT_CIPHER_ALT    0x0080020001000001ULL
 
 #define MACSEC_MIN_ICV_LEN 8
 #define MACSEC_MAX_ICV_LEN 32
diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h
index 817d807e9481..14565d703291 100644
--- a/include/uapi/linux/inet_diag.h
+++ b/include/uapi/linux/inet_diag.h
@@ -92,6 +92,8 @@ enum {
 	INET_DIAG_BC_D_COND,
 	INET_DIAG_BC_DEV_COND,   /* u32 ifindex */
 	INET_DIAG_BC_MARK_COND,
+	INET_DIAG_BC_S_EQ,
+	INET_DIAG_BC_D_EQ,
 };
 
 struct inet_diag_hostcond {
diff --git a/include/uapi/linux/l2tp.h b/include/uapi/linux/l2tp.h
index d84ce5c1c9aa..71e62795104d 100644
--- a/include/uapi/linux/l2tp.h
+++ b/include/uapi/linux/l2tp.h
@@ -65,7 +65,7 @@ struct sockaddr_l2tpip6 {
  * TUNNEL_MODIFY	- CONN_ID, udpcsum
  * TUNNEL_GETSTATS	- CONN_ID, (stats)
  * TUNNEL_GET		- CONN_ID, (...)
- * SESSION_CREATE	- SESSION_ID, PW_TYPE, offset, data_seq, cookie, peer_cookie, offset, l2spec
+ * SESSION_CREATE	- SESSION_ID, PW_TYPE, data_seq, cookie, peer_cookie, l2spec
  * SESSION_DELETE	- SESSION_ID
  * SESSION_MODIFY	- SESSION_ID, data_seq
  * SESSION_GET		- SESSION_ID, (...)
@@ -94,7 +94,7 @@ enum {
 	L2TP_ATTR_NONE,			/* no data */
 	L2TP_ATTR_PW_TYPE,		/* u16, enum l2tp_pwtype */
 	L2TP_ATTR_ENCAP_TYPE,		/* u16, enum l2tp_encap_type */
-	L2TP_ATTR_OFFSET,		/* u16 */
+	L2TP_ATTR_OFFSET,		/* u16 (not used) */
 	L2TP_ATTR_DATA_SEQ,		/* u16 */
 	L2TP_ATTR_L2SPEC_TYPE,		/* u8, enum l2tp_l2spec_type */
 	L2TP_ATTR_L2SPEC_LEN,		/* u8, enum l2tp_l2spec_type */
diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index 282875cf8056..fc29efaa918c 100644
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -168,47 +168,106 @@
 
 /* If we did not see any headers from any supported C libraries,
  * or we are being included in the kernel, then define everything
- * that we need. */
+ * that we need. Check for previous __UAPI_* definitions to give
+ * unsupported C libraries a way to opt out of any kernel definition. */
 #else /* !defined(__GLIBC__) */
 
 /* Definitions for if.h */
+#ifndef __UAPI_DEF_IF_IFCONF
 #define __UAPI_DEF_IF_IFCONF 1
+#endif
+#ifndef __UAPI_DEF_IF_IFMAP
 #define __UAPI_DEF_IF_IFMAP 1
+#endif
+#ifndef __UAPI_DEF_IF_IFNAMSIZ
 #define __UAPI_DEF_IF_IFNAMSIZ 1
+#endif
+#ifndef __UAPI_DEF_IF_IFREQ
 #define __UAPI_DEF_IF_IFREQ 1
+#endif
 /* Everything up to IFF_DYNAMIC, matches net/if.h until glibc 2.23 */
+#ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS
 #define __UAPI_DEF_IF_NET_DEVICE_FLAGS 1
+#endif
 /* For the future if glibc adds IFF_LOWER_UP, IFF_DORMANT and IFF_ECHO */
+#ifndef __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO
 #define __UAPI_DEF_IF_NET_DEVICE_FLAGS_LOWER_UP_DORMANT_ECHO 1
+#endif
 
 /* Definitions for in.h */
+#ifndef __UAPI_DEF_IN_ADDR
 #define __UAPI_DEF_IN_ADDR		1
+#endif
+#ifndef __UAPI_DEF_IN_IPPROTO
 #define __UAPI_DEF_IN_IPPROTO		1
+#endif
+#ifndef __UAPI_DEF_IN_PKTINFO
 #define __UAPI_DEF_IN_PKTINFO		1
+#endif
+#ifndef __UAPI_DEF_IP_MREQ
 #define __UAPI_DEF_IP_MREQ		1
+#endif
+#ifndef __UAPI_DEF_SOCKADDR_IN
 #define __UAPI_DEF_SOCKADDR_IN		1
+#endif
+#ifndef __UAPI_DEF_IN_CLASS
 #define __UAPI_DEF_IN_CLASS		1
+#endif
 
 /* Definitions for in6.h */
+#ifndef __UAPI_DEF_IN6_ADDR
 #define __UAPI_DEF_IN6_ADDR		1
+#endif
+#ifndef __UAPI_DEF_IN6_ADDR_ALT
 #define __UAPI_DEF_IN6_ADDR_ALT		1
+#endif
+#ifndef __UAPI_DEF_SOCKADDR_IN6
 #define __UAPI_DEF_SOCKADDR_IN6		1
+#endif
+#ifndef __UAPI_DEF_IPV6_MREQ
 #define __UAPI_DEF_IPV6_MREQ		1
+#endif
+#ifndef __UAPI_DEF_IPPROTO_V6
 #define __UAPI_DEF_IPPROTO_V6		1
+#endif
+#ifndef __UAPI_DEF_IPV6_OPTIONS
 #define __UAPI_DEF_IPV6_OPTIONS		1
+#endif
+#ifndef __UAPI_DEF_IN6_PKTINFO
 #define __UAPI_DEF_IN6_PKTINFO		1
+#endif
+#ifndef __UAPI_DEF_IP6_MTUINFO
 #define __UAPI_DEF_IP6_MTUINFO		1
+#endif
 
 /* Definitions for ipx.h */
+#ifndef __UAPI_DEF_SOCKADDR_IPX
 #define __UAPI_DEF_SOCKADDR_IPX			1
+#endif
+#ifndef __UAPI_DEF_IPX_ROUTE_DEFINITION
 #define __UAPI_DEF_IPX_ROUTE_DEFINITION		1
+#endif
+#ifndef __UAPI_DEF_IPX_INTERFACE_DEFINITION
 #define __UAPI_DEF_IPX_INTERFACE_DEFINITION	1
+#endif
+#ifndef __UAPI_DEF_IPX_CONFIG_DATA
 #define __UAPI_DEF_IPX_CONFIG_DATA		1
+#endif
+#ifndef __UAPI_DEF_IPX_ROUTE_DEF
 #define __UAPI_DEF_IPX_ROUTE_DEF		1
+#endif
 
 /* Definitions for xattr.h */
+#ifndef __UAPI_DEF_XATTR
 #define __UAPI_DEF_XATTR		1
+#endif
 
 #endif /* __GLIBC__ */
 
+/* Definitions for if_ether.h */
+/* allow libcs like musl to deactivate this, glibc does not implement this. */
+#ifndef __UAPI_DEF_ETHHDR
+#define __UAPI_DEF_ETHHDR		1
+#endif
+
 #endif /* _UAPI_LIBC_COMPAT_H */
diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
index 3fea7709a441..9574bd40870b 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
@@ -36,7 +36,7 @@ enum ip_conntrack_info {
 
 #define NF_CT_STATE_INVALID_BIT			(1 << 0)
 #define NF_CT_STATE_BIT(ctinfo)			(1 << ((ctinfo) % IP_CT_IS_REPLY + 1))
-#define NF_CT_STATE_UNTRACKED_BIT		(1 << (IP_CT_UNTRACKED + 1))
+#define NF_CT_STATE_UNTRACKED_BIT		(1 << 6)
 
 /* Bitset representing status of connection. */
 enum ip_conntrack_status {
@@ -101,12 +101,16 @@ enum ip_conntrack_status {
 	IPS_HELPER_BIT = 13,
 	IPS_HELPER = (1 << IPS_HELPER_BIT),
 
+	/* Conntrack has been offloaded to flow table. */
+	IPS_OFFLOAD_BIT = 14,
+	IPS_OFFLOAD = (1 << IPS_OFFLOAD_BIT),
+
 	/* Be careful here, modifying these bits can make things messy,
 	 * so don't let users modify them directly.
 	 */
 	IPS_UNCHANGEABLE_MASK = (IPS_NAT_DONE_MASK | IPS_NAT_MASK |
 				 IPS_EXPECTED | IPS_CONFIRMED | IPS_DYING |
-				 IPS_SEQ_ADJUST | IPS_TEMPLATE),
+				 IPS_SEQ_ADJUST | IPS_TEMPLATE | IPS_OFFLOAD),
 
 	__IPS_MAX_BIT = 14,
 };
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index a3ee277b17a1..53e8dd2a3a03 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -92,6 +92,9 @@ enum nft_verdicts {
  * @NFT_MSG_GETOBJ: get a stateful object (enum nft_obj_attributes)
  * @NFT_MSG_DELOBJ: delete a stateful object (enum nft_obj_attributes)
  * @NFT_MSG_GETOBJ_RESET: get and reset a stateful object (enum nft_obj_attributes)
+ * @NFT_MSG_NEWFLOWTABLE: add new flow table (enum nft_flowtable_attributes)
+ * @NFT_MSG_GETFLOWTABLE: get flow table (enum nft_flowtable_attributes)
+ * @NFT_MSG_DELFLOWTABLE: delete flow table (enum nft_flowtable_attributes)
  */
 enum nf_tables_msg_types {
 	NFT_MSG_NEWTABLE,
@@ -116,6 +119,9 @@ enum nf_tables_msg_types {
 	NFT_MSG_GETOBJ,
 	NFT_MSG_DELOBJ,
 	NFT_MSG_GETOBJ_RESET,
+	NFT_MSG_NEWFLOWTABLE,
+	NFT_MSG_GETFLOWTABLE,
+	NFT_MSG_DELFLOWTABLE,
 	NFT_MSG_MAX,
 };
 
@@ -777,6 +783,7 @@ enum nft_exthdr_attributes {
  * @NFT_META_OIFGROUP: packet output interface group
  * @NFT_META_CGROUP: socket control group (skb->sk->sk_classid)
  * @NFT_META_PRANDOM: a 32bit pseudo-random number
+ * @NFT_META_SECPATH: boolean, secpath_exists (!!skb->sp)
  */
 enum nft_meta_keys {
 	NFT_META_LEN,
@@ -804,6 +811,7 @@ enum nft_meta_keys {
 	NFT_META_OIFGROUP,
 	NFT_META_CGROUP,
 	NFT_META_PRANDOM,
+	NFT_META_SECPATH,
 };
 
 /**
@@ -949,6 +957,17 @@ enum nft_ct_attributes {
 };
 #define NFTA_CT_MAX		(__NFTA_CT_MAX - 1)
 
+/**
+ * enum nft_flow_attributes - ct offload expression attributes
+ * @NFTA_FLOW_TABLE_NAME: flow table name (NLA_STRING)
+ */
+enum nft_offload_attributes {
+	NFTA_FLOW_UNSPEC,
+	NFTA_FLOW_TABLE_NAME,
+	__NFTA_FLOW_MAX,
+};
+#define NFTA_FLOW_MAX		(__NFTA_FLOW_MAX - 1)
+
 enum nft_limit_type {
 	NFT_LIMIT_PKTS,
 	NFT_LIMIT_PKT_BYTES
@@ -1308,6 +1327,53 @@ enum nft_object_attributes {
 #define NFTA_OBJ_MAX		(__NFTA_OBJ_MAX - 1)
 
 /**
+ * enum nft_flowtable_attributes - nf_tables flow table netlink attributes
+ *
+ * @NFTA_FLOWTABLE_TABLE: name of the table containing the expression (NLA_STRING)
+ * @NFTA_FLOWTABLE_NAME: name of this flow table (NLA_STRING)
+ * @NFTA_FLOWTABLE_HOOK: netfilter hook configuration(NLA_U32)
+ * @NFTA_FLOWTABLE_USE: number of references to this flow table (NLA_U32)
+ */
+enum nft_flowtable_attributes {
+	NFTA_FLOWTABLE_UNSPEC,
+	NFTA_FLOWTABLE_TABLE,
+	NFTA_FLOWTABLE_NAME,
+	NFTA_FLOWTABLE_HOOK,
+	NFTA_FLOWTABLE_USE,
+	__NFTA_FLOWTABLE_MAX
+};
+#define NFTA_FLOWTABLE_MAX	(__NFTA_FLOWTABLE_MAX - 1)
+
+/**
+ * enum nft_flowtable_hook_attributes - nf_tables flow table hook netlink attributes
+ *
+ * @NFTA_FLOWTABLE_HOOK_NUM: netfilter hook number (NLA_U32)
+ * @NFTA_FLOWTABLE_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
+ * @NFTA_FLOWTABLE_HOOK_DEVS: input devices this flow table is bound to (NLA_NESTED)
+ */
+enum nft_flowtable_hook_attributes {
+	NFTA_FLOWTABLE_HOOK_UNSPEC,
+	NFTA_FLOWTABLE_HOOK_NUM,
+	NFTA_FLOWTABLE_HOOK_PRIORITY,
+	NFTA_FLOWTABLE_HOOK_DEVS,
+	__NFTA_FLOWTABLE_HOOK_MAX
+};
+#define NFTA_FLOWTABLE_HOOK_MAX	(__NFTA_FLOWTABLE_HOOK_MAX - 1)
+
+/**
+ * enum nft_device_attributes - nf_tables device netlink attributes
+ *
+ * @NFTA_DEVICE_NAME: name of this device (NLA_STRING)
+ */
+enum nft_devices_attributes {
+	NFTA_DEVICE_UNSPEC,
+	NFTA_DEVICE_NAME,
+	__NFTA_DEVICE_MAX
+};
+#define NFTA_DEVICE_MAX		(__NFTA_DEVICE_MAX - 1)
+
+
+/**
  * enum nft_trace_attributes - nf_tables trace netlink attributes
  *
  * @NFTA_TRACE_TABLE: name of the table (NLA_STRING)
diff --git a/include/uapi/linux/netfilter/xt_connlimit.h b/include/uapi/linux/netfilter/xt_connlimit.h
index 07e5e9d47882..d4d1943dcd11 100644
--- a/include/uapi/linux/netfilter/xt_connlimit.h
+++ b/include/uapi/linux/netfilter/xt_connlimit.h
@@ -27,7 +27,7 @@ struct xt_connlimit_info {
 	__u32 flags;
 
 	/* Used internally by the kernel */
-	struct xt_connlimit_data *data __attribute__((aligned(8)));
+	struct nf_conncount_data *data __attribute__((aligned(8)));
 };
 
 #endif /* _XT_CONNLIMIT_H */
diff --git a/include/uapi/linux/netfilter_arp.h b/include/uapi/linux/netfilter_arp.h
index 81b6a4cbcb72..791dfc5ae907 100644
--- a/include/uapi/linux/netfilter_arp.h
+++ b/include/uapi/linux/netfilter_arp.h
@@ -15,6 +15,9 @@
 #define NF_ARP_IN	0
 #define NF_ARP_OUT	1
 #define NF_ARP_FORWARD	2
+
+#ifndef __KERNEL__
 #define NF_ARP_NUMHOOKS	3
+#endif
 
 #endif /* __LINUX_ARP_NETFILTER_H */
diff --git a/include/uapi/linux/netfilter_decnet.h b/include/uapi/linux/netfilter_decnet.h
index 9089c38f6abe..61f1c7dfd033 100644
--- a/include/uapi/linux/netfilter_decnet.h
+++ b/include/uapi/linux/netfilter_decnet.h
@@ -24,6 +24,9 @@
 #define NFC_DN_IF_IN		0x0004
 /* Output device. */
 #define NFC_DN_IF_OUT		0x0008
+
+/* kernel define is in netfilter_defs.h */
+#define NF_DN_NUMHOOKS		7
 #endif /* ! __KERNEL__ */
 
 /* DECnet Hooks */
@@ -41,7 +44,6 @@
 #define NF_DN_HELLO		5
 /* Input Routing Packets */
 #define NF_DN_ROUTE		6
-#define NF_DN_NUMHOOKS		7
 
 enum nf_dn_hook_priorities {
 	NF_DN_PRI_FIRST = INT_MIN,
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f882fe1f9709..c587a61c32bf 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3862,6 +3862,9 @@ enum nl80211_bss_scan_width {
  *	@NL80211_BSS_PARENT_BSSID. (u64).
  * @NL80211_BSS_PARENT_BSSID: the BSS according to which @NL80211_BSS_PARENT_TSF
  *	is set.
+ * @NL80211_BSS_CHAIN_SIGNAL: per-chain signal strength of last BSS update.
+ *	Contains a nested array of signal strength attributes (u8, dBm),
+ *	using the nesting index as the antenna number.
  * @__NL80211_BSS_AFTER_LAST: internal
  * @NL80211_BSS_MAX: highest BSS attribute
  */
@@ -3885,6 +3888,7 @@ enum nl80211_bss {
 	NL80211_BSS_PAD,
 	NL80211_BSS_PARENT_TSF,
 	NL80211_BSS_PARENT_BSSID,
+	NL80211_BSS_CHAIN_SIGNAL,
 
 	/* keep last */
 	__NL80211_BSS_AFTER_LAST,
diff --git a/include/uapi/linux/tipc.h b/include/uapi/linux/tipc.h
index 35f79d1f8c3a..14bacc7e6cef 100644
--- a/include/uapi/linux/tipc.h
+++ b/include/uapi/linux/tipc.h
@@ -117,10 +117,9 @@ static inline unsigned int tipc_node(__u32 addr)
 /*
  * Publication scopes when binding port names and port name sequences
  */
-
-#define TIPC_ZONE_SCOPE		1
-#define TIPC_CLUSTER_SCOPE	2
-#define TIPC_NODE_SCOPE		3
+#define TIPC_ZONE_SCOPE         1
+#define TIPC_CLUSTER_SCOPE      2
+#define TIPC_NODE_SCOPE         3
 
 /*
  * Limiting values for messages
diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index fc353b518288..5de6ed37695b 100644
--- a/include/uapi/linux/virtio_net.h
+++ b/include/uapi/linux/virtio_net.h
@@ -57,6 +57,8 @@
 					 * Steering */
 #define VIRTIO_NET_F_CTRL_MAC_ADDR 23	/* Set MAC address */
 
+#define VIRTIO_NET_F_SPEED_DUPLEX 63	/* Device set linkspeed and duplex */
+
 #ifndef VIRTIO_NET_NO_LEGACY
 #define VIRTIO_NET_F_GSO	6	/* Host handles pkts w/ any GSO type */
 #endif /* VIRTIO_NET_NO_LEGACY */
@@ -76,6 +78,17 @@ struct virtio_net_config {
 	__u16 max_virtqueue_pairs;
 	/* Default maximum transmit unit advice */
 	__u16 mtu;
+	/*
+	 * speed, in units of 1Mb. All values 0 to INT_MAX are legal.
+	 * Any other value stands for unknown.
+	 */
+	__u32 speed;
+	/*
+	 * 0x00 - half duplex
+	 * 0x01 - full duplex
+	 * Any other value stands for unknown.
+	 */
+	__u8 duplex;
 } __attribute__((packed));
 
 /*