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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/*3 * VFIO Region definitions for ZPCI devices4 *5 * Copyright IBM Corp. 20206 *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 information19 *20 * This capability provides a set of descriptive information about the21 * associated PCI function.22 */23struct 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 /* 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 information39 *40 * This capability provides a set of descriptive information about the group of41 * PCI functions that the associated device belongs to.42 */43struct vfio_device_info_cap_zpci_group {44 struct vfio_info_cap_header 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 String61 *62 * This capability provides the utility string for the associated device, which63 * is a device identifier string made up of EBCDID characters. 'size' specifies64 * the length of 'util_str'.65 */66struct vfio_device_info_cap_zpci_util {67 struct vfio_info_cap_header header;68 __u32 size;69 __u8 util_str[];70};71 72/**73 * VFIO_DEVICE_INFO_CAP_ZPCI_PFIP - PCI Function Path74 *75 * This capability provides the PCI function path string, which is an identifier76 * that describes the internal hardware path of the device. 'size' specifies77 * the length of 'pfip'.78 */79struct vfio_device_info_cap_zpci_pfip {80 struct vfio_info_cap_header header;81 __u32 size;82 __u8 pfip[];83};84 85#endif86