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1/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
2/*
3 * vdpa device management interface
4 * Copyright (c) 2020 Mellanox Technologies Ltd. All rights reserved.
5 */
6
7#ifndef _LINUX_VDPA_H_
8#define _LINUX_VDPA_H_
9
10#define VDPA_GENL_NAME "vdpa"
11#define VDPA_GENL_VERSION 0x1
12
13enum vdpa_command {
14 VDPA_CMD_UNSPEC,
15 VDPA_CMD_MGMTDEV_NEW,
16 VDPA_CMD_MGMTDEV_GET, /* can dump */
17 VDPA_CMD_DEV_NEW,
18 VDPA_CMD_DEV_DEL,
19 VDPA_CMD_DEV_GET, /* can dump */
20 VDPA_CMD_DEV_CONFIG_GET, /* can dump */
21 VDPA_CMD_DEV_VSTATS_GET,
22 VDPA_CMD_DEV_ATTR_SET,
23};
24
25enum vdpa_attr {
26 VDPA_ATTR_UNSPEC,
27
28 /* Pad attribute for 64b alignment */
29 VDPA_ATTR_PAD = VDPA_ATTR_UNSPEC,
30
31 /* bus name (optional) + dev name together make the parent device handle */
32 VDPA_ATTR_MGMTDEV_BUS_NAME, /* string */
33 VDPA_ATTR_MGMTDEV_DEV_NAME, /* string */
34 VDPA_ATTR_MGMTDEV_SUPPORTED_CLASSES, /* u64 */
35
36 VDPA_ATTR_DEV_NAME, /* string */
37 VDPA_ATTR_DEV_ID, /* u32 */
38 VDPA_ATTR_DEV_VENDOR_ID, /* u32 */
39 VDPA_ATTR_DEV_MAX_VQS, /* u32 */
40 VDPA_ATTR_DEV_MAX_VQ_SIZE, /* u16 */
41 VDPA_ATTR_DEV_MIN_VQ_SIZE, /* u16 */
42
43 VDPA_ATTR_DEV_NET_CFG_MACADDR, /* binary */
44 VDPA_ATTR_DEV_NET_STATUS, /* u8 */
45 VDPA_ATTR_DEV_NET_CFG_MAX_VQP, /* u16 */
46 VDPA_ATTR_DEV_NET_CFG_MTU, /* u16 */
47
48 VDPA_ATTR_DEV_NEGOTIATED_FEATURES, /* u64 */
49 VDPA_ATTR_DEV_MGMTDEV_MAX_VQS, /* u32 */
50 /* virtio features that are supported by the vDPA management device */
51 VDPA_ATTR_DEV_SUPPORTED_FEATURES, /* u64 */
52
53 VDPA_ATTR_DEV_QUEUE_INDEX, /* u32 */
54 VDPA_ATTR_DEV_VENDOR_ATTR_NAME, /* string */
55 VDPA_ATTR_DEV_VENDOR_ATTR_VALUE, /* u64 */
56
57 /* virtio features that are provisioned to the vDPA device */
58 VDPA_ATTR_DEV_FEATURES, /* u64 */
59
60 VDPA_ATTR_DEV_BLK_CFG_CAPACITY, /* u64 */
61 VDPA_ATTR_DEV_BLK_CFG_SIZE_MAX, /* u32 */
62 VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE, /* u32 */
63 VDPA_ATTR_DEV_BLK_CFG_SEG_MAX, /* u32 */
64 VDPA_ATTR_DEV_BLK_CFG_NUM_QUEUES, /* u16 */
65 VDPA_ATTR_DEV_BLK_CFG_PHY_BLK_EXP, /* u8 */
66 VDPA_ATTR_DEV_BLK_CFG_ALIGN_OFFSET, /* u8 */
67 VDPA_ATTR_DEV_BLK_CFG_MIN_IO_SIZE, /* u16 */
68 VDPA_ATTR_DEV_BLK_CFG_OPT_IO_SIZE, /* u32 */
69 VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEC, /* u32 */
70 VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEG, /* u32 */
71 VDPA_ATTR_DEV_BLK_CFG_DISCARD_SEC_ALIGN,/* u32 */
72 VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEC, /* u32 */
73 VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEG, /* u32 */
74 VDPA_ATTR_DEV_BLK_READ_ONLY, /* u8 */
75 VDPA_ATTR_DEV_BLK_FLUSH, /* u8 */
76
77 /* new attributes must be added above here */
78 VDPA_ATTR_MAX,
79};
80
81#endif