include/uapi/linux/vdpa.h

   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
  13 enum 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
  25 enum 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