include/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 _LINUX_DEVLINK_H_
  13 #define _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
  19 enum 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_GET,
  61 #define DEVLINK_CMD_ESWITCH_MODE_GET /* obsolete, never use this! */ \
  62         DEVLINK_CMD_ESWITCH_GET
  63
  64         DEVLINK_CMD_ESWITCH_SET,
  65 #define DEVLINK_CMD_ESWITCH_MODE_SET /* obsolete, never use this! */ \
  66         DEVLINK_CMD_ESWITCH_SET
  67
  68         DEVLINK_CMD_DPIPE_TABLE_GET,
  69         DEVLINK_CMD_DPIPE_ENTRIES_GET,
  70         DEVLINK_CMD_DPIPE_HEADERS_GET,
  71         DEVLINK_CMD_DPIPE_TABLE_COUNTERS_SET,
  72
  73         /* add new commands above here */
  74         __DEVLINK_CMD_MAX,
  75         DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
  76 };
  77
  78 enum devlink_port_type {
  79         DEVLINK_PORT_TYPE_NOTSET,
  80         DEVLINK_PORT_TYPE_AUTO,
  81         DEVLINK_PORT_TYPE_ETH,
  82         DEVLINK_PORT_TYPE_IB,
  83 };
  84
  85 enum devlink_sb_pool_type {
  86         DEVLINK_SB_POOL_TYPE_INGRESS,
  87         DEVLINK_SB_POOL_TYPE_EGRESS,
  88 };
  89
  90 /* static threshold - limiting the maximum number of bytes.
  91  * dynamic threshold - limiting the maximum number of bytes
  92  *   based on the currently available free space in the shared buffer pool.
  93  *   In this mode, the maximum quota is calculated based
  94  *   on the following formula:
  95  *     max_quota = alpha / (1 + alpha) * Free_Buffer
  96  *   While Free_Buffer is the amount of none-occupied buffer associated to
  97  *   the relevant pool.
  98  *   The value range which can be passed is 0-20 and serves
  99  *   for computation of alpha by following formula:
 100  *     alpha = 2 ^ (passed_value - 10)
 101  */
 102
 103 enum devlink_sb_threshold_type {
 104         DEVLINK_SB_THRESHOLD_TYPE_STATIC,
 105         DEVLINK_SB_THRESHOLD_TYPE_DYNAMIC,
 106 };
 107
 108 #define DEVLINK_SB_THRESHOLD_TO_ALPHA_MAX 20
 109
 110 enum devlink_eswitch_mode {
 111         DEVLINK_ESWITCH_MODE_LEGACY,
 112         DEVLINK_ESWITCH_MODE_SWITCHDEV,
 113 };
 114
 115 enum devlink_eswitch_inline_mode {
 116         DEVLINK_ESWITCH_INLINE_MODE_NONE,
 117         DEVLINK_ESWITCH_INLINE_MODE_LINK,
 118         DEVLINK_ESWITCH_INLINE_MODE_NETWORK,
 119         DEVLINK_ESWITCH_INLINE_MODE_TRANSPORT,
 120 };
 121
 122 enum devlink_eswitch_encap_mode {
 123         DEVLINK_ESWITCH_ENCAP_MODE_NONE,
 124         DEVLINK_ESWITCH_ENCAP_MODE_BASIC,
 125 };
 126
 127 enum devlink_attr {
 128         /* don't change the order or add anything between, this is ABI! */
 129         DEVLINK_ATTR_UNSPEC,
 130
 131         /* bus name + dev name together are a handle for devlink entity */
 132         DEVLINK_ATTR_BUS_NAME,                  /* string */
 133         DEVLINK_ATTR_DEV_NAME,                  /* string */
 134
 135         DEVLINK_ATTR_PORT_INDEX,                /* u32 */
 136         DEVLINK_ATTR_PORT_TYPE,                 /* u16 */
 137         DEVLINK_ATTR_PORT_DESIRED_TYPE,         /* u16 */
 138         DEVLINK_ATTR_PORT_NETDEV_IFINDEX,       /* u32 */
 139         DEVLINK_ATTR_PORT_NETDEV_NAME,          /* string */
 140         DEVLINK_ATTR_PORT_IBDEV_NAME,           /* string */
 141         DEVLINK_ATTR_PORT_SPLIT_COUNT,          /* u32 */
 142         DEVLINK_ATTR_PORT_SPLIT_GROUP,          /* u32 */
 143         DEVLINK_ATTR_SB_INDEX,                  /* u32 */
 144         DEVLINK_ATTR_SB_SIZE,                   /* u32 */
 145         DEVLINK_ATTR_SB_INGRESS_POOL_COUNT,     /* u16 */
 146         DEVLINK_ATTR_SB_EGRESS_POOL_COUNT,      /* u16 */
 147         DEVLINK_ATTR_SB_INGRESS_TC_COUNT,       /* u16 */
 148         DEVLINK_ATTR_SB_EGRESS_TC_COUNT,        /* u16 */
 149         DEVLINK_ATTR_SB_POOL_INDEX,             /* u16 */
 150         DEVLINK_ATTR_SB_POOL_TYPE,              /* u8 */
 151         DEVLINK_ATTR_SB_POOL_SIZE,              /* u32 */
 152         DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE,    /* u8 */
 153         DEVLINK_ATTR_SB_THRESHOLD,              /* u32 */
 154         DEVLINK_ATTR_SB_TC_INDEX,               /* u16 */
 155         DEVLINK_ATTR_SB_OCC_CUR,                /* u32 */
 156         DEVLINK_ATTR_SB_OCC_MAX,                /* u32 */
 157         DEVLINK_ATTR_ESWITCH_MODE,              /* u16 */
 158         DEVLINK_ATTR_ESWITCH_INLINE_MODE,       /* u8 */
 159
 160         DEVLINK_ATTR_DPIPE_TABLES,              /* nested */
 161         DEVLINK_ATTR_DPIPE_TABLE,               /* nested */
 162         DEVLINK_ATTR_DPIPE_TABLE_NAME,          /* string */
 163         DEVLINK_ATTR_DPIPE_TABLE_SIZE,          /* u64 */
 164         DEVLINK_ATTR_DPIPE_TABLE_MATCHES,       /* nested */
 165         DEVLINK_ATTR_DPIPE_TABLE_ACTIONS,       /* nested */
 166         DEVLINK_ATTR_DPIPE_TABLE_COUNTERS_ENABLED,      /* u8 */
 167
 168         DEVLINK_ATTR_DPIPE_ENTRIES,             /* nested */
 169         DEVLINK_ATTR_DPIPE_ENTRY,               /* nested */
 170         DEVLINK_ATTR_DPIPE_ENTRY_INDEX,         /* u64 */
 171         DEVLINK_ATTR_DPIPE_ENTRY_MATCH_VALUES,  /* nested */
 172         DEVLINK_ATTR_DPIPE_ENTRY_ACTION_VALUES, /* nested */
 173         DEVLINK_ATTR_DPIPE_ENTRY_COUNTER,       /* u64 */
 174
 175         DEVLINK_ATTR_DPIPE_MATCH,               /* nested */
 176         DEVLINK_ATTR_DPIPE_MATCH_VALUE,         /* nested */
 177         DEVLINK_ATTR_DPIPE_MATCH_TYPE,          /* u32 */
 178
 179         DEVLINK_ATTR_DPIPE_ACTION,              /* nested */
 180         DEVLINK_ATTR_DPIPE_ACTION_VALUE,        /* nested */
 181         DEVLINK_ATTR_DPIPE_ACTION_TYPE,         /* u32 */
 182
 183         DEVLINK_ATTR_DPIPE_VALUE,
 184         DEVLINK_ATTR_DPIPE_VALUE_MASK,
 185         DEVLINK_ATTR_DPIPE_VALUE_MAPPING,       /* u32 */
 186
 187         DEVLINK_ATTR_DPIPE_HEADERS,             /* nested */
 188         DEVLINK_ATTR_DPIPE_HEADER,              /* nested */
 189         DEVLINK_ATTR_DPIPE_HEADER_NAME,         /* string */
 190         DEVLINK_ATTR_DPIPE_HEADER_ID,           /* u32 */
 191         DEVLINK_ATTR_DPIPE_HEADER_FIELDS,       /* nested */
 192         DEVLINK_ATTR_DPIPE_HEADER_GLOBAL,       /* u8 */
 193         DEVLINK_ATTR_DPIPE_HEADER_INDEX,        /* u32 */
 194
 195         DEVLINK_ATTR_DPIPE_FIELD,               /* nested */
 196         DEVLINK_ATTR_DPIPE_FIELD_NAME,          /* string */
 197         DEVLINK_ATTR_DPIPE_FIELD_ID,            /* u32 */
 198         DEVLINK_ATTR_DPIPE_FIELD_BITWIDTH,      /* u32 */
 199         DEVLINK_ATTR_DPIPE_FIELD_MAPPING_TYPE,  /* u32 */
 200
 201         DEVLINK_ATTR_PAD,
 202
 203         DEVLINK_ATTR_ESWITCH_ENCAP_MODE,        /* u8 */
 204
 205         /* add new attributes above here, update the policy in devlink.c */
 206
 207         __DEVLINK_ATTR_MAX,
 208         DEVLINK_ATTR_MAX = __DEVLINK_ATTR_MAX - 1
 209 };
 210
 211 /* Mapping between internal resource described by the field and system
 212  * structure
 213  */
 214 enum devlink_dpipe_field_mapping_type {
 215         DEVLINK_DPIPE_FIELD_MAPPING_TYPE_NONE,
 216         DEVLINK_DPIPE_FIELD_MAPPING_TYPE_IFINDEX,
 217 };
 218
 219 /* Match type - specify the type of the match */
 220 enum devlink_dpipe_match_type {
 221         DEVLINK_DPIPE_MATCH_TYPE_FIELD_EXACT,
 222 };
 223
 224 /* Action type - specify the action type */
 225 enum devlink_dpipe_action_type {
 226         DEVLINK_DPIPE_ACTION_TYPE_FIELD_MODIFY,
 227 };
 228
 229 #endif /* _LINUX_DEVLINK_H_ */