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 ; |
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 | /* End of version 1 */ |
33 | __u32 fh; /* PCI function handle */ |
34 | /* End of version 2 */ |
35 | }; |
36 | |
37 | /** |
38 | * VFIO_DEVICE_INFO_CAP_ZPCI_GROUP - Base PCI Function Group information |
39 | * |
40 | * This capability provides a set of descriptive information about the group of |
41 | * PCI functions that the associated device belongs to. |
42 | */ |
43 | struct vfio_device_info_cap_zpci_group { |
44 | struct vfio_info_cap_header ; |
45 | __u64 dasm; /* DMA Address space mask */ |
46 | __u64 msi_addr; /* MSI address */ |
47 | __u64 flags; |
48 | #define VFIO_DEVICE_INFO_ZPCI_FLAG_REFRESH 1 /* Program-specified TLB refresh */ |
49 | __u16 mui; /* Measurement Block Update Interval */ |
50 | __u16 noi; /* Maximum number of MSIs */ |
51 | __u16 maxstbl; /* Maximum Store Block Length */ |
52 | __u8 version; /* Supported PCI Version */ |
53 | /* End of version 1 */ |
54 | __u8 reserved; |
55 | __u16 imaxstbl; /* Maximum Interpreted Store Block Length */ |
56 | /* End of version 2 */ |
57 | }; |
58 | |
59 | /** |
60 | * VFIO_DEVICE_INFO_CAP_ZPCI_UTIL - Utility String |
61 | * |
62 | * This capability provides the utility string for the associated device, which |
63 | * is a device identifier string made up of EBCDID characters. 'size' specifies |
64 | * the length of 'util_str'. |
65 | */ |
66 | struct vfio_device_info_cap_zpci_util { |
67 | struct vfio_info_cap_header ; |
68 | __u32 size; |
69 | __u8 util_str[]; |
70 | }; |
71 | |
72 | /** |
73 | * VFIO_DEVICE_INFO_CAP_ZPCI_PFIP - PCI Function Path |
74 | * |
75 | * This capability provides the PCI function path string, which is an identifier |
76 | * that describes the internal hardware path of the device. 'size' specifies |
77 | * the length of 'pfip'. |
78 | */ |
79 | struct vfio_device_info_cap_zpci_pfip { |
80 | struct vfio_info_cap_header ; |
81 | __u32 size; |
82 | __u8 pfip[]; |
83 | }; |
84 | |
85 | #endif |
86 | |