| /* |
| * 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> |
| #include <asm/iSeries/HvCallEvent.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 |
| }; |
| |
| // 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 |
| // 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 // _HVLPEVENT_H |
