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