Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * include/uapi/linux/devlink.h - Network physical device Netlink interface
3 * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
4 * Copyright (c) 2016 Jiri Pirko <jiri@mellanox.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#ifndef _UAPI_LINUX_DEVLINK_H_
13#define _UAPI_LINUX_DEVLINK_H_
14
15#define DEVLINK_GENL_NAME "devlink"
16#define DEVLINK_GENL_VERSION 0x1
17#define DEVLINK_GENL_MCGRP_CONFIG_NAME "config"
18
19enum devlink_command {
20 /* don't change the order or add anything between, this is ABI! */
21 DEVLINK_CMD_UNSPEC,
22
23 DEVLINK_CMD_GET, /* can dump */
24 DEVLINK_CMD_SET,
25 DEVLINK_CMD_NEW,
26 DEVLINK_CMD_DEL,
27
28 DEVLINK_CMD_PORT_GET, /* can dump */
29 DEVLINK_CMD_PORT_SET,
30 DEVLINK_CMD_PORT_NEW,
31 DEVLINK_CMD_PORT_DEL,
32
33 DEVLINK_CMD_PORT_SPLIT,
34 DEVLINK_CMD_PORT_UNSPLIT,
35
36 DEVLINK_CMD_SB_GET, /* can dump */
37 DEVLINK_CMD_SB_SET,
38 DEVLINK_CMD_SB_NEW,
39 DEVLINK_CMD_SB_DEL,
40
41 DEVLINK_CMD_SB_POOL_GET, /* can dump */
42 DEVLINK_CMD_SB_POOL_SET,
43 DEVLINK_CMD_SB_POOL_NEW,
44 DEVLINK_CMD_SB_POOL_DEL,
45
46 DEVLINK_CMD_SB_PORT_POOL_GET, /* can dump */
47 DEVLINK_CMD_SB_PORT_POOL_SET,
48 DEVLINK_CMD_SB_PORT_POOL_NEW,
49 DEVLINK_CMD_SB_PORT_POOL_DEL,
50
51 DEVLINK_CMD_SB_TC_POOL_BIND_GET, /* can dump */
52 DEVLINK_CMD_SB_TC_POOL_BIND_SET,
53 DEVLINK_CMD_SB_TC_POOL_BIND_NEW,
54 DEVLINK_CMD_SB_TC_POOL_BIND_DEL,
55
56 /* Shared buffer occupancy monitoring commands */
57 DEVLINK_CMD_SB_OCC_SNAPSHOT,
58 DEVLINK_CMD_SB_OCC_MAX_CLEAR,
59
60 /* add new commands above here */
61
62 __DEVLINK_CMD_MAX,
63 DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
64};
65
66enum devlink_port_type {
67 DEVLINK_PORT_TYPE_NOTSET,
68 DEVLINK_PORT_TYPE_AUTO,
69 DEVLINK_PORT_TYPE_ETH,
70 DEVLINK_PORT_TYPE_IB,
71};
72
73enum devlink_sb_pool_type {
74 DEVLINK_SB_POOL_TYPE_INGRESS,
75 DEVLINK_SB_POOL_TYPE_EGRESS,
76};
77
78/* static threshold - limiting the maximum number of bytes.
79 * dynamic threshold - limiting the maximum number of bytes
80 * based on the currently available free space in the shared buffer pool.
81 * In this mode, the maximum quota is calculated based
82 * on the following formula:
83 * max_quota = alpha / (1 + alpha) * Free_Buffer
84 * While Free_Buffer is the amount of none-occupied buffer associated to
85 * the relevant pool.
86 * The value range which can be passed is 0-20 and serves
87 * for computation of alpha by following formula:
88 * alpha = 2 ^ (passed_value - 10)
89 */
90
91enum devlink_sb_threshold_type {
92 DEVLINK_SB_THRESHOLD_TYPE_STATIC,
93 DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC,
94};
95
96#define DEVLINK_SB_THRESHOLD_TO_ALPHA_MAX 20
97
98enum devlink_attr {
99 /* don't change the order or add anything between, this is ABI! */
100 DEVLINK_ATTR_UNSPEC,
101
102 /* bus name + dev name together are a handle for devlink entity */
103 DEVLINK_ATTR_BUS_NAME, /* string */
104 DEVLINK_ATTR_DEV_NAME, /* string */
105
106 DEVLINK_ATTR_PORT_INDEX, /* u32 */
107 DEVLINK_ATTR_PORT_TYPE, /* u16 */
108 DEVLINK_ATTR_PORT_DESIRED_TYPE, /* u16 */
109 DEVLINK_ATTR_PORT_NETDEV_IFINDEX, /* u32 */
110 DEVLINK_ATTR_PORT_NETDEV_NAME, /* string */
111 DEVLINK_ATTR_PORT_IBDEV_NAME, /* string */
112 DEVLINK_ATTR_PORT_SPLIT_COUNT, /* u32 */
113 DEVLINK_ATTR_PORT_SPLIT_GROUP, /* u32 */
114 DEVLINK_ATTR_SB_INDEX, /* u32 */
115 DEVLINK_ATTR_SB_SIZE, /* u32 */
116 DEVLINK_ATTR_SB_INGRESS_POOL_COUNT, /* u16 */
117 DEVLINK_ATTR_SB_EGRESS_POOL_COUNT, /* u16 */
118 DEVLINK_ATTR_SB_INGRESS_TC_COUNT, /* u16 */
119 DEVLINK_ATTR_SB_EGRESS_TC_COUNT, /* u16 */
120 DEVLINK_ATTR_SB_POOL_INDEX, /* u16 */
121 DEVLINK_ATTR_SB_POOL_TYPE, /* u8 */
122 DEVLINK_ATTR_SB_POOL_SIZE, /* u32 */
123 DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE, /* u8 */
124 DEVLINK_ATTR_SB_THRESHOLD, /* u32 */
125 DEVLINK_ATTR_SB_TC_INDEX, /* u16 */
126 DEVLINK_ATTR_SB_OCC_CUR, /* u32 */
127 DEVLINK_ATTR_SB_OCC_MAX, /* u32 */
128
129 /* add new attributes above here, update the policy in devlink.c */
130
131 __DEVLINK_ATTR_MAX,
132 DEVLINK_ATTR_MAX = __DEVLINK_ATTR_MAX - 1
133};
134
135#endif /* _UAPI_LINUX_DEVLINK_H_ */