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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* VFIO Region definitions for ZPCI devices
*
* Copyright IBM Corp. 2020
*
* Author(s): Pierre Morel <[email protected]>
* Matthew Rosato <[email protected]>
*/
#ifndef _VFIO_ZDEV_H_
#define _VFIO_ZDEV_H_
#include <linux/types.h>
#include <linux/vfio.h>
/**
* VFIO_DEVICE_INFO_CAP_ZPCI_BASE - Base PCI Function information
*
* This capability provides a set of descriptive information about the
* associated PCI function.
*/
struct vfio_device_info_cap_zpci_base {
struct vfio_info_cap_header header;
__u64 start_dma; /* Start of available DMA addresses */
__u64 end_dma; /* End of available DMA addresses */
__u16 pchid; /* Physical Channel ID */
__u16 vfn; /* Virtual function number */
__u16 fmb_length; /* Measurement Block Length (in bytes) */
__u8 pft; /* PCI Function Type */
__u8 gid; /* PCI function group ID */
/* End of version 1 */
__u32 fh; /* PCI function handle */
/* End of version 2 */
};
/**
* VFIO_DEVICE_INFO_CAP_ZPCI_GROUP - Base PCI Function Group information
*
* This capability provides a set of descriptive information about the group of
* PCI functions that the associated device belongs to.
*/
struct vfio_device_info_cap_zpci_group {
struct vfio_info_cap_header header;
__u64 dasm; /* DMA Address space mask */
__u64 msi_addr; /* MSI address */
__u64 flags;
#define VFIO_DEVICE_INFO_ZPCI_FLAG_REFRESH 1 /* Program-specified TLB refresh */
__u16 mui; /* Measurement Block Update Interval */
__u16 noi; /* Maximum number of MSIs */
__u16 maxstbl; /* Maximum Store Block Length */
__u8 version; /* Supported PCI Version */
/* End of version 1 */
__u8 reserved;
__u16 imaxstbl; /* Maximum Interpreted Store Block Length */
/* End of version 2 */
};
/**
* VFIO_DEVICE_INFO_CAP_ZPCI_UTIL - Utility String
*
* This capability provides the utility string for the associated device, which
* is a device identifier string made up of EBCDID characters. 'size' specifies
* the length of 'util_str'.
*/
struct vfio_device_info_cap_zpci_util {
struct vfio_info_cap_header header;
__u32 size;
__u8 util_str[];
};
/**
* VFIO_DEVICE_INFO_CAP_ZPCI_PFIP - PCI Function Path
*
* This capability provides the PCI function path string, which is an identifier
* that describes the internal hardware path of the device. 'size' specifies
* the length of 'pfip'.
*/
struct vfio_device_info_cap_zpci_pfip {
struct vfio_info_cap_header header;
__u32 size;
__u8 pfip[];
};
#endif