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
  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_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
  68 enum 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
  75 enum 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
  93 enum 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
 100 enum devlink_eswitch_mode {
 101         DEVLINK_ESWITCH_MODE_LEGACY,
 102         DEVLINK_ESWITCH_MODE_SWITCHDEV,
 103 };
 104
 105 enum 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_ */