xref: /linux/include/linux/if_link.h (revision a115bc070b1fc57ab23f3972401425927b5b465c)
1 #ifndef _LINUX_IF_LINK_H
2 #define _LINUX_IF_LINK_H
3 
4 #include <linux/types.h>
5 #include <linux/netlink.h>
6 
7 /* The struct should be in sync with struct net_device_stats */
8 struct rtnl_link_stats {
9 	__u32	rx_packets;		/* total packets received	*/
10 	__u32	tx_packets;		/* total packets transmitted	*/
11 	__u32	rx_bytes;		/* total bytes received 	*/
12 	__u32	tx_bytes;		/* total bytes transmitted	*/
13 	__u32	rx_errors;		/* bad packets received		*/
14 	__u32	tx_errors;		/* packet transmit problems	*/
15 	__u32	rx_dropped;		/* no space in linux buffers	*/
16 	__u32	tx_dropped;		/* no space available in linux	*/
17 	__u32	multicast;		/* multicast packets received	*/
18 	__u32	collisions;
19 
20 	/* detailed rx_errors: */
21 	__u32	rx_length_errors;
22 	__u32	rx_over_errors;		/* receiver ring buff overflow	*/
23 	__u32	rx_crc_errors;		/* recved pkt with crc error	*/
24 	__u32	rx_frame_errors;	/* recv'd frame alignment error */
25 	__u32	rx_fifo_errors;		/* recv'r fifo overrun		*/
26 	__u32	rx_missed_errors;	/* receiver missed packet	*/
27 
28 	/* detailed tx_errors */
29 	__u32	tx_aborted_errors;
30 	__u32	tx_carrier_errors;
31 	__u32	tx_fifo_errors;
32 	__u32	tx_heartbeat_errors;
33 	__u32	tx_window_errors;
34 
35 	/* for cslip etc */
36 	__u32	rx_compressed;
37 	__u32	tx_compressed;
38 };
39 
40 /* The struct should be in sync with struct ifmap */
41 struct rtnl_link_ifmap {
42 	__u64	mem_start;
43 	__u64	mem_end;
44 	__u64	base_addr;
45 	__u16	irq;
46 	__u8	dma;
47 	__u8	port;
48 };
49 
50 enum {
51 	IFLA_UNSPEC,
52 	IFLA_ADDRESS,
53 	IFLA_BROADCAST,
54 	IFLA_IFNAME,
55 	IFLA_MTU,
56 	IFLA_LINK,
57 	IFLA_QDISC,
58 	IFLA_STATS,
59 	IFLA_COST,
60 #define IFLA_COST IFLA_COST
61 	IFLA_PRIORITY,
62 #define IFLA_PRIORITY IFLA_PRIORITY
63 	IFLA_MASTER,
64 #define IFLA_MASTER IFLA_MASTER
65 	IFLA_WIRELESS,		/* Wireless Extension event - see wireless.h */
66 #define IFLA_WIRELESS IFLA_WIRELESS
67 	IFLA_PROTINFO,		/* Protocol specific information for a link */
68 #define IFLA_PROTINFO IFLA_PROTINFO
69 	IFLA_TXQLEN,
70 #define IFLA_TXQLEN IFLA_TXQLEN
71 	IFLA_MAP,
72 #define IFLA_MAP IFLA_MAP
73 	IFLA_WEIGHT,
74 #define IFLA_WEIGHT IFLA_WEIGHT
75 	IFLA_OPERSTATE,
76 	IFLA_LINKMODE,
77 	IFLA_LINKINFO,
78 #define IFLA_LINKINFO IFLA_LINKINFO
79 	IFLA_NET_NS_PID,
80 	IFLA_IFALIAS,
81 	IFLA_NUM_VF,		/* Number of VFs if device is SR-IOV PF */
82 	IFLA_VF_MAC,		/* Hardware queue specific attributes */
83 	IFLA_VF_VLAN,
84 	IFLA_VF_TX_RATE,	/* TX Bandwidth Allocation */
85 	IFLA_VFINFO,
86 	__IFLA_MAX
87 };
88 
89 
90 #define IFLA_MAX (__IFLA_MAX - 1)
91 
92 /* backwards compatibility for userspace */
93 #ifndef __KERNEL__
94 #define IFLA_RTA(r)  ((struct rtattr*)(((char*)(r)) + NLMSG_ALIGN(sizeof(struct ifinfomsg))))
95 #define IFLA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ifinfomsg))
96 #endif
97 
98 /* ifi_flags.
99 
100    IFF_* flags.
101 
102    The only change is:
103    IFF_LOOPBACK, IFF_BROADCAST and IFF_POINTOPOINT are
104    more not changeable by user. They describe link media
105    characteristics and set by device driver.
106 
107    Comments:
108    - Combination IFF_BROADCAST|IFF_POINTOPOINT is invalid
109    - If neither of these three flags are set;
110      the interface is NBMA.
111 
112    - IFF_MULTICAST does not mean anything special:
113    multicasts can be used on all not-NBMA links.
114    IFF_MULTICAST means that this media uses special encapsulation
115    for multicast frames. Apparently, all IFF_POINTOPOINT and
116    IFF_BROADCAST devices are able to use multicasts too.
117  */
118 
119 /* IFLA_LINK.
120    For usual devices it is equal ifi_index.
121    If it is a "virtual interface" (f.e. tunnel), ifi_link
122    can point to real physical interface (f.e. for bandwidth calculations),
123    or maybe 0, what means, that real media is unknown (usual
124    for IPIP tunnels, when route to endpoint is allowed to change)
125  */
126 
127 /* Subtype attributes for IFLA_PROTINFO */
128 enum {
129 	IFLA_INET6_UNSPEC,
130 	IFLA_INET6_FLAGS,	/* link flags			*/
131 	IFLA_INET6_CONF,	/* sysctl parameters		*/
132 	IFLA_INET6_STATS,	/* statistics			*/
133 	IFLA_INET6_MCAST,	/* MC things. What of them?	*/
134 	IFLA_INET6_CACHEINFO,	/* time values and max reasm size */
135 	IFLA_INET6_ICMP6STATS,	/* statistics (icmpv6)		*/
136 	__IFLA_INET6_MAX
137 };
138 
139 #define IFLA_INET6_MAX	(__IFLA_INET6_MAX - 1)
140 
141 struct ifla_cacheinfo {
142 	__u32	max_reasm_len;
143 	__u32	tstamp;		/* ipv6InterfaceTable updated timestamp */
144 	__u32	reachable_time;
145 	__u32	retrans_time;
146 };
147 
148 enum {
149 	IFLA_INFO_UNSPEC,
150 	IFLA_INFO_KIND,
151 	IFLA_INFO_DATA,
152 	IFLA_INFO_XSTATS,
153 	__IFLA_INFO_MAX,
154 };
155 
156 #define IFLA_INFO_MAX	(__IFLA_INFO_MAX - 1)
157 
158 /* VLAN section */
159 
160 enum {
161 	IFLA_VLAN_UNSPEC,
162 	IFLA_VLAN_ID,
163 	IFLA_VLAN_FLAGS,
164 	IFLA_VLAN_EGRESS_QOS,
165 	IFLA_VLAN_INGRESS_QOS,
166 	__IFLA_VLAN_MAX,
167 };
168 
169 #define IFLA_VLAN_MAX	(__IFLA_VLAN_MAX - 1)
170 
171 struct ifla_vlan_flags {
172 	__u32	flags;
173 	__u32	mask;
174 };
175 
176 enum {
177 	IFLA_VLAN_QOS_UNSPEC,
178 	IFLA_VLAN_QOS_MAPPING,
179 	__IFLA_VLAN_QOS_MAX
180 };
181 
182 #define IFLA_VLAN_QOS_MAX	(__IFLA_VLAN_QOS_MAX - 1)
183 
184 struct ifla_vlan_qos_mapping {
185 	__u32 from;
186 	__u32 to;
187 };
188 
189 /* MACVLAN section */
190 enum {
191 	IFLA_MACVLAN_UNSPEC,
192 	IFLA_MACVLAN_MODE,
193 	__IFLA_MACVLAN_MAX,
194 };
195 
196 #define IFLA_MACVLAN_MAX (__IFLA_MACVLAN_MAX - 1)
197 
198 enum macvlan_mode {
199 	MACVLAN_MODE_PRIVATE = 1, /* don't talk to other macvlans */
200 	MACVLAN_MODE_VEPA    = 2, /* talk to other ports through ext bridge */
201 	MACVLAN_MODE_BRIDGE  = 4, /* talk to bridge ports directly */
202 };
203 
204 /* SR-IOV virtual function managment section */
205 
206 struct ifla_vf_mac {
207 	__u32 vf;
208 	__u8 mac[32]; /* MAX_ADDR_LEN */
209 };
210 
211 struct ifla_vf_vlan {
212 	__u32 vf;
213 	__u32 vlan; /* 0 - 4095, 0 disables VLAN filter */
214 	__u32 qos;
215 };
216 
217 struct ifla_vf_tx_rate {
218 	__u32 vf;
219 	__u32 rate; /* Max TX bandwidth in Mbps, 0 disables throttling */
220 };
221 
222 struct ifla_vf_info {
223 	__u32 vf;
224 	__u8 mac[32];
225 	__u32 vlan;
226 	__u32 qos;
227 	__u32 tx_rate;
228 };
229 #endif /* _LINUX_IF_LINK_H */
230