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 _UAPI_LINUX_VDPA_H_
8#define _UAPI_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};
23
24enum vdpa_attr {
25	VDPA_ATTR_UNSPEC,
26
27	/* Pad attribute for 64b alignment */
28	VDPA_ATTR_PAD = VDPA_ATTR_UNSPEC,
29
30	/* bus name (optional) + dev name together make the parent device handle */
31	VDPA_ATTR_MGMTDEV_BUS_NAME,		/* string */
32	VDPA_ATTR_MGMTDEV_DEV_NAME,		/* string */
33	VDPA_ATTR_MGMTDEV_SUPPORTED_CLASSES,	/* u64 */
34
35	VDPA_ATTR_DEV_NAME,			/* string */
36	VDPA_ATTR_DEV_ID,			/* u32 */
37	VDPA_ATTR_DEV_VENDOR_ID,		/* u32 */
38	VDPA_ATTR_DEV_MAX_VQS,			/* u32 */
39	VDPA_ATTR_DEV_MAX_VQ_SIZE,		/* u16 */
40	VDPA_ATTR_DEV_MIN_VQ_SIZE,		/* u16 */
41
42	VDPA_ATTR_DEV_NET_CFG_MACADDR,		/* binary */
43	VDPA_ATTR_DEV_NET_STATUS,		/* u8 */
44	VDPA_ATTR_DEV_NET_CFG_MAX_VQP,		/* u16 */
45	VDPA_ATTR_DEV_NET_CFG_MTU,		/* u16 */
46
47	VDPA_ATTR_DEV_NEGOTIATED_FEATURES,	/* u64 */
48	VDPA_ATTR_DEV_MGMTDEV_MAX_VQS,		/* u32 */
49	/* virtio features that are supported by the vDPA management device */
50	VDPA_ATTR_DEV_SUPPORTED_FEATURES,	/* u64 */
51
52	VDPA_ATTR_DEV_QUEUE_INDEX,              /* u32 */
53	VDPA_ATTR_DEV_VENDOR_ATTR_NAME,		/* string */
54	VDPA_ATTR_DEV_VENDOR_ATTR_VALUE,        /* u64 */
55
56	/* virtio features that are provisioned to the vDPA device */
57	VDPA_ATTR_DEV_FEATURES,                 /* u64 */
58
59	VDPA_ATTR_DEV_BLK_CFG_CAPACITY,		/* u64 */
60	VDPA_ATTR_DEV_BLK_CFG_SEG_SIZE,		/* u32 */
61	VDPA_ATTR_DEV_BLK_CFG_BLK_SIZE,		/* u32 */
62	VDPA_ATTR_DEV_BLK_CFG_SEG_MAX,		/* u32 */
63	VDPA_ATTR_DEV_BLK_CFG_NUM_QUEUES,	/* u16 */
64	VDPA_ATTR_DEV_BLK_CFG_PHY_BLK_EXP,	/* u8 */
65	VDPA_ATTR_DEV_BLK_CFG_ALIGN_OFFSET,	/* u8 */
66	VDPA_ATTR_DEV_BLK_CFG_MIN_IO_SIZE,	/* u16 */
67	VDPA_ATTR_DEV_BLK_CFG_OPT_IO_SIZE,	/* u32 */
68	VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEC,	/* u32 */
69	VDPA_ATTR_DEV_BLK_CFG_MAX_DISCARD_SEG,	/* u32 */
70	VDPA_ATTR_DEV_BLK_CFG_DISCARD_SEC_ALIGN,/* u32 */
71	VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEC,	/* u32 */
72	VDPA_ATTR_DEV_BLK_CFG_MAX_WRITE_ZEROES_SEG,	/* u32 */
73	VDPA_ATTR_DEV_BLK_CFG_READ_ONLY,		/* u8 */
74	VDPA_ATTR_DEV_BLK_CFG_FLUSH,		/* u8 */
75
76	/* new attributes must be added above here */
77	VDPA_ATTR_MAX,
78};
79
80#endif
81