LXR linux/include/uapi/linux/devlink.h

   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        DEVLINK_CMD_ESWITCH_MODE_GET,
  61        DEVLINK_CMD_ESWITCH_MODE_SET,
  62        /* add new commands above here */
  63
  64        __DEVLINK_CMD_MAX,
  65        DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
  66};
  67
  68enum devlink_port_type {
  69        DEVLINK_PORT_TYPE_NOTSET,
  70        DEVLINK_PORT_TYPE_AUTO,
  71        DEVLINK_PORT_TYPE_ETH,
  72        DEVLINK_PORT_TYPE_IB,
  73};
  74
  75enum devlink_sb_pool_type {
  76        DEVLINK_SB_POOL_TYPE_INGRESS,
  77        DEVLINK_SB_POOL_TYPE_EGRESS,
  78};
  79
  80/* static threshold - limiting the maximum number of bytes.
  81 * dynamic threshold - limiting the maximum number of bytes
  82 *   based on the currently available free space in the shared buffer pool.
  83 *   In this mode, the maximum quota is calculated based
  84 *   on the following formula:
  85 *     max_quota = alpha / (1 + alpha) * Free_Buffer
  86 *   While Free_Buffer is the amount of none-occupied buffer associated to
  87 *   the relevant pool.
  88 *   The value range which can be passed is 0-20 and serves
  89 *   for computation of alpha by following formula:
  90 *     alpha = 2 ^ (passed_value - 10)
  91 */
  92
  93enum devlink_sb_threshold_type {
  94        DEVLINK_SB_THRESHOLD_TYPE_STATIC,
  95        DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC,
  96};
  97
  98#define DEVLINK_SB_THRESHOLD_TO_ALPHA_MAX 20
  99
 100enum devlink_eswitch_mode {
 101        DEVLINK_ESWITCH_MODE_LEGACY,
 102        DEVLINK_ESWITCH_MODE_SWITCHDEV,
 103};
 104
 105enum devlink_attr {
 106        /* don't change the order or add anything between, this is ABI! */
 107        DEVLINK_ATTR_UNSPEC,
 108
 109        /* bus name + dev name together are a handle for devlink entity */
 110        DEVLINK_ATTR_BUS_NAME,                  /* string */
 111        DEVLINK_ATTR_DEV_NAME,                  /* string */
 112
 113        DEVLINK_ATTR_PORT_INDEX,                /* u32 */
 114        DEVLINK_ATTR_PORT_TYPE,                 /* u16 */
 115        DEVLINK_ATTR_PORT_DESIRED_TYPE,         /* u16 */
 116        DEVLINK_ATTR_PORT_NETDEV_IFINDEX,       /* u32 */
 117        DEVLINK_ATTR_PORT_NETDEV_NAME,          /* string */
 118        DEVLINK_ATTR_PORT_IBDEV_NAME,           /* string */
 119        DEVLINK_ATTR_PORT_SPLIT_COUNT,          /* u32 */
 120        DEVLINK_ATTR_PORT_SPLIT_GROUP,          /* u32 */
 121        DEVLINK_ATTR_SB_INDEX,                  /* u32 */
 122        DEVLINK_ATTR_SB_SIZE,                   /* u32 */
 123        DEVLINK_ATTR_SB_INGRESS_POOL_COUNT,     /* u16 */
 124        DEVLINK_ATTR_SB_EGRESS_POOL_COUNT,      /* u16 */
 125        DEVLINK_ATTR_SB_INGRESS_TC_COUNT,       /* u16 */
 126        DEVLINK_ATTR_SB_EGRESS_TC_COUNT,        /* u16 */
 127        DEVLINK_ATTR_SB_POOL_INDEX,             /* u16 */
 128        DEVLINK_ATTR_SB_POOL_TYPE,              /* u8 */
 129        DEVLINK_ATTR_SB_POOL_SIZE,              /* u32 */
 130        DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE,    /* u8 */
 131        DEVLINK_ATTR_SB_THRESHOLD,              /* u32 */
 132        DEVLINK_ATTR_SB_TC_INDEX,               /* u16 */
 133        DEVLINK_ATTR_SB_OCC_CUR,                /* u32 */
 134        DEVLINK_ATTR_SB_OCC_MAX,                /* u32 */
 135        DEVLINK_ATTR_ESWITCH_MODE,              /* u16 */
 136
 137        /* add new attributes above here, update the policy in devlink.c */
 138
 139        __DEVLINK_ATTR_MAX,
 140        DEVLINK_ATTR_MAX = __DEVLINK_ATTR_MAX - 1
 141};
 142
 143#endif /* _UAPI_LINUX_DEVLINK_H_ */
 144