143 lines
4.7 KiB
C
143 lines
4.7 KiB
C
/*
|
|
* HvLpEvent.h
|
|
* Copyright (C) 2001 Mike Corrigan IBM Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
/* This file contains the class for HV events in the system. */
|
|
|
|
#ifndef _ASM_POWERPC_ISERIES_HV_LP_EVENT_H
|
|
#define _ASM_POWERPC_ISERIES_HV_LP_EVENT_H
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/ptrace.h>
|
|
#include <asm/iseries/hv_types.h>
|
|
#include <asm/iseries/hv_call_event.h>
|
|
|
|
/*
|
|
* HvLpEvent is the structure for Lp Event messages passed between
|
|
* partitions through PLIC.
|
|
*/
|
|
|
|
struct HvEventFlags {
|
|
u8 xValid:1; /* Indicates a valid request x00-x00 */
|
|
u8 xRsvd1:4; /* Reserved ... */
|
|
u8 xAckType:1; /* Immediate or deferred ... */
|
|
u8 xAckInd:1; /* Indicates if ACK required ... */
|
|
u8 xFunction:1; /* Interrupt or Acknowledge ... */
|
|
};
|
|
|
|
|
|
struct HvLpEvent {
|
|
struct HvEventFlags xFlags; /* Event flags x00-x00 */
|
|
u8 xType; /* Type of message x01-x01 */
|
|
u16 xSubtype; /* Subtype for event x02-x03 */
|
|
u8 xSourceLp; /* Source LP x04-x04 */
|
|
u8 xTargetLp; /* Target LP x05-x05 */
|
|
u8 xSizeMinus1; /* Size of Derived class - 1 x06-x06 */
|
|
u8 xRc; /* RC for Ack flows x07-x07 */
|
|
u16 xSourceInstanceId; /* Source sides instance id x08-x09 */
|
|
u16 xTargetInstanceId; /* Target sides instance id x0A-x0B */
|
|
union {
|
|
u32 xSubtypeData; /* Data usable by the subtype x0C-x0F */
|
|
u16 xSubtypeDataShort[2]; /* Data as 2 shorts */
|
|
u8 xSubtypeDataChar[4]; /* Data as 4 chars */
|
|
} x;
|
|
|
|
u64 xCorrelationToken; /* Unique value for source/type x10-x17 */
|
|
};
|
|
|
|
typedef void (*LpEventHandler)(struct HvLpEvent *, struct pt_regs *);
|
|
|
|
/* Register a handler for an event type - returns 0 on success */
|
|
extern int HvLpEvent_registerHandler(HvLpEvent_Type eventType,
|
|
LpEventHandler hdlr);
|
|
|
|
/*
|
|
* Unregister a handler for an event type
|
|
*
|
|
* This call will sleep until the handler being removed is guaranteed to
|
|
* be no longer executing on any CPU. Do not call with locks held.
|
|
*
|
|
* returns 0 on success
|
|
* Unregister will fail if there are any paths open for the type
|
|
*/
|
|
extern int HvLpEvent_unregisterHandler(HvLpEvent_Type eventType);
|
|
|
|
/*
|
|
* Open an Lp Event Path for an event type
|
|
* returns 0 on success
|
|
* openPath will fail if there is no handler registered for the event type.
|
|
* The lpIndex specified is the partition index for the target partition
|
|
* (for VirtualIo, VirtualLan and SessionMgr) other types specify zero)
|
|
*/
|
|
extern int HvLpEvent_openPath(HvLpEvent_Type eventType, HvLpIndex lpIndex);
|
|
|
|
/*
|
|
* Close an Lp Event Path for a type and partition
|
|
* returns 0 on sucess
|
|
*/
|
|
extern int HvLpEvent_closePath(HvLpEvent_Type eventType, HvLpIndex lpIndex);
|
|
|
|
#define HvLpEvent_Type_Hypervisor 0
|
|
#define HvLpEvent_Type_MachineFac 1
|
|
#define HvLpEvent_Type_SessionMgr 2
|
|
#define HvLpEvent_Type_SpdIo 3
|
|
#define HvLpEvent_Type_VirtualBus 4
|
|
#define HvLpEvent_Type_PciIo 5
|
|
#define HvLpEvent_Type_RioIo 6
|
|
#define HvLpEvent_Type_VirtualLan 7
|
|
#define HvLpEvent_Type_VirtualIo 8
|
|
#define HvLpEvent_Type_NumTypes 9
|
|
|
|
#define HvLpEvent_Rc_Good 0
|
|
#define HvLpEvent_Rc_BufferNotAvailable 1
|
|
#define HvLpEvent_Rc_Cancelled 2
|
|
#define HvLpEvent_Rc_GenericError 3
|
|
#define HvLpEvent_Rc_InvalidAddress 4
|
|
#define HvLpEvent_Rc_InvalidPartition 5
|
|
#define HvLpEvent_Rc_InvalidSize 6
|
|
#define HvLpEvent_Rc_InvalidSubtype 7
|
|
#define HvLpEvent_Rc_InvalidSubtypeData 8
|
|
#define HvLpEvent_Rc_InvalidType 9
|
|
#define HvLpEvent_Rc_PartitionDead 10
|
|
#define HvLpEvent_Rc_PathClosed 11
|
|
#define HvLpEvent_Rc_SubtypeError 12
|
|
|
|
#define HvLpEvent_Function_Ack 0
|
|
#define HvLpEvent_Function_Int 1
|
|
|
|
#define HvLpEvent_AckInd_NoAck 0
|
|
#define HvLpEvent_AckInd_DoAck 1
|
|
|
|
#define HvLpEvent_AckType_ImmediateAck 0
|
|
#define HvLpEvent_AckType_DeferredAck 1
|
|
|
|
#define HvLpDma_Direction_LocalToRemote 0
|
|
#define HvLpDma_Direction_RemoteToLocal 1
|
|
|
|
#define HvLpDma_AddressType_TceIndex 0
|
|
#define HvLpDma_AddressType_RealAddress 1
|
|
|
|
#define HvLpDma_Rc_Good 0
|
|
#define HvLpDma_Rc_Error 1
|
|
#define HvLpDma_Rc_PartitionDead 2
|
|
#define HvLpDma_Rc_PathClosed 3
|
|
#define HvLpDma_Rc_InvalidAddress 4
|
|
#define HvLpDma_Rc_InvalidLength 5
|
|
|
|
#endif /* _ASM_POWERPC_ISERIES_HV_LP_EVENT_H */
|