| Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 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 |