/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * VFIO Region definitions for ZPCI devices * * Copyright IBM Corp. 2020 * * Author(s): Pierre Morel <pmorel@linux.ibm.com> * Matthew Rosato <mjrosato@linux.ibm.com>
*/
#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
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