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 <[email protected]> 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 /* add new commands above here */ 61 62 __DEVLINK_CMD_MAX, 63 DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1 64 }; 65 66 enum 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 73 enum 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 91 enum 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 98 enum 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_ */ 136