HvLpEvent.h
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上传日期:2013-04-10
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- /*
- * 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 _HVLPEVENT_H
- #define _HVLPEVENT_H
- #include <asm/types.h>
- #include <asm/ptrace.h>
- #include <asm/iSeries/HvTypes.h>
- #ifndef _HVCALLEVENT_H
- #include <asm/iSeries/HvCallEvent.h>
- #endif
- //=====================================================================
- //
- // 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
- };
- // Lp Event handler function
- 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
- // 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 // _HVLPEVENT_H