patch-2.4.19 linux-2.4.19/include/asm-ppc64/iSeries/HvLpEvent.h

• Lines: 145
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-ppc64/iSeries/HvLpEvent.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-ppc64/iSeries/HvLpEvent.h linux-2.4.19/include/asm-ppc64/iSeries/HvLpEvent.h
@@ -0,0 +1,144 @@
+/*
+ * 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