Merge tag 'ide-pull-request' of https://gitlab.com/jsnow/qemu into staging
[qemu.git] / linux-headers / linux / vfio_zdev.h
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3 * VFIO Region definitions for ZPCI devices
4 *
5 * Copyright IBM Corp. 2020
6 *
7 * Author(s): Pierre Morel <pmorel@linux.ibm.com>
8 * Matthew Rosato <mjrosato@linux.ibm.com>
9 */
10
11 #ifndef _VFIO_ZDEV_H_
12 #define _VFIO_ZDEV_H_
13
14 #include <linux/types.h>
15 #include <linux/vfio.h>
16
17 /**
18 * VFIO_DEVICE_INFO_CAP_ZPCI_BASE - Base PCI Function information
19 *
20 * This capability provides a set of descriptive information about the
21 * associated PCI function.
22 */
23 struct vfio_device_info_cap_zpci_base {
24 struct vfio_info_cap_header header;
25 __u64 start_dma; /* Start of available DMA addresses */
26 __u64 end_dma; /* End of available DMA addresses */
27 __u16 pchid; /* Physical Channel ID */
28 __u16 vfn; /* Virtual function number */
29 __u16 fmb_length; /* Measurement Block Length (in bytes) */
30 __u8 pft; /* PCI Function Type */
31 __u8 gid; /* PCI function group ID */
32 };
33
34 /**
35 * VFIO_DEVICE_INFO_CAP_ZPCI_GROUP - Base PCI Function Group information
36 *
37 * This capability provides a set of descriptive information about the group of
38 * PCI functions that the associated device belongs to.
39 */
40 struct vfio_device_info_cap_zpci_group {
41 struct vfio_info_cap_header header;
42 __u64 dasm; /* DMA Address space mask */
43 __u64 msi_addr; /* MSI address */
44 __u64 flags;
45 #define VFIO_DEVICE_INFO_ZPCI_FLAG_REFRESH 1 /* Program-specified TLB refresh */
46 __u16 mui; /* Measurement Block Update Interval */
47 __u16 noi; /* Maximum number of MSIs */
48 __u16 maxstbl; /* Maximum Store Block Length */
49 __u8 version; /* Supported PCI Version */
50 };
51
52 /**
53 * VFIO_DEVICE_INFO_CAP_ZPCI_UTIL - Utility String
54 *
55 * This capability provides the utility string for the associated device, which
56 * is a device identifier string made up of EBCDID characters. 'size' specifies
57 * the length of 'util_str'.
58 */
59 struct vfio_device_info_cap_zpci_util {
60 struct vfio_info_cap_header header;
61 __u32 size;
62 __u8 util_str[];
63 };
64
65 /**
66 * VFIO_DEVICE_INFO_CAP_ZPCI_PFIP - PCI Function Path
67 *
68 * This capability provides the PCI function path string, which is an identifier
69 * that describes the internal hardware path of the device. 'size' specifies
70 * the length of 'pfip'.
71 */
72 struct vfio_device_info_cap_zpci_pfip {
73 struct vfio_info_cap_header header;
74 __u32 size;
75 __u8 pfip[];
76 };
77
78 #endif