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/*
* Copyright 2009 Novell. All Rights Reserved.
*
* PCI to Virtual-Bus Bridge
*
* Author:
* Gregory Haskins <ghaskins@novell.com>
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef _LINUX_VBUS_PCI_H
#define _LINUX_VBUS_PCI_H
#include <linux/ioctl.h>
#include <linux/types.h>
#define VBUS_PCI_ABI_MAGIC 0xbf53eef5
#define VBUS_PCI_ABI_VERSION 2
#define VBUS_PCI_HC_VERSION 1
enum {
VBUS_PCI_BRIDGE_NEGOTIATE,
VBUS_PCI_BRIDGE_QREG,
VBUS_PCI_BRIDGE_SLOWCALL,
VBUS_PCI_BRIDGE_FASTCALL_ADD,
VBUS_PCI_BRIDGE_FASTCALL_DROP,
VBUS_PCI_BRIDGE_MAX, /* must be last */
};
enum {
VBUS_PCI_HC_DEVOPEN,
VBUS_PCI_HC_DEVCLOSE,
VBUS_PCI_HC_DEVCALL,
VBUS_PCI_HC_DEVSHM,
VBUS_PCI_HC_MAX, /* must be last */
};
struct vbus_pci_bridge_negotiate {
__u32 magic;
__u32 version;
__u64 capabilities;
};
struct vbus_pci_deviceopen {
__u32 devid;
__u32 version; /* device ABI version */
__u64 handle; /* return value for devh */
};
struct vbus_pci_devicecall {
__u64 devh; /* device-handle (returned from DEVICEOPEN */
__u32 func;
__u32 len;
__u32 flags;
__u64 datap;
};
struct vbus_pci_deviceshm {
__u64 devh; /* device-handle (returned from DEVICEOPEN */
__u32 id;
__u32 len;
__u32 flags;
struct {
__u32 offset;
__u32 prio;
__u64 cookie; /* token to pass back when signaling client */
} signal;
__u64 datap;
};
struct vbus_pci_call_desc {
__u32 vector;
__u32 len;
__u64 datap;
};
struct vbus_pci_fastcall_desc {
struct vbus_pci_call_desc call;
__u32 result;
};
struct vbus_pci_regs {
struct vbus_pci_call_desc bridgecall;
__u8 pad[48];
};
struct vbus_pci_signals {
__u32 eventq;
__u32 fastcall;
__u32 shmsignal;
__u8 pad[20];
};
struct vbus_pci_eventqreg {
__u32 count;
__u64 ring;
__u64 data;
};
struct vbus_pci_busreg {
__u32 count; /* supporting multiple queues allows for prio, etc */
struct vbus_pci_eventqreg eventq[1];
};
enum vbus_pci_eventid {
VBUS_PCI_EVENT_DEVADD,
VBUS_PCI_EVENT_DEVDROP,
VBUS_PCI_EVENT_SHMSIGNAL,
VBUS_PCI_EVENT_SHMCLOSE,
};
#define VBUS_MAX_DEVTYPE_LEN 128
struct vbus_pci_add_event {
__u64 id;
char type[VBUS_MAX_DEVTYPE_LEN];
};
struct vbus_pci_handle_event {
__u64 handle;
};
struct vbus_pci_event {
__u32 eventid;
union {
struct vbus_pci_add_event add;
struct vbus_pci_handle_event handle;
} data;
};
#endif /* _LINUX_VBUS_PCI_H */
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