iseries_pci.h

linux-2.4.29操作系统的源码

#ifndef _ISERIES_64_PCI_H
#define _ISERIES_64_PCI_H
/************************************************************************/
/* File iSeries_pci.h created by Allan Trautman on Tue Feb 20, 2001.    */
/************************************************************************/
/* Define some useful macros for the iSeries pci routines.              */
/* Copyright (C) 20yy  Allan H Trautman, 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                                          */
/************************************************************************/
/* Change Activity:                                                     */
/*   Created Feb 20, 2001                                               */
/*   Added device reset, March 22, 2001                                 */
/*   Ported to ppc64, May 25, 2001                                      */
/* End Change Activity                                                  */
/************************************************************************/
#include <asm/iSeries/HvCallPci.h>

struct pci_dev;				/* For Forward Reference        */
struct iSeries_Device_Node;
/************************************************************************/
/* Gets iSeries Bus, SubBus, of DevFn using pci_dev* structure          */
/************************************************************************/
#define ISERIES_BUS(DevPtr)    DevPtr->DsaAddr.busNumber
#define ISERIES_SUBBUS(DevPtr) DevPtr->DsaAddr.subBusNumber
#define ISERIES_DEVICE(DevPtr) DevPtr->DsaAddr.deviceId
#define ISERIES_DEVFUN(DevPtr) DevPtr->DevFn
#define ISERIES_DSA(DevPtr)   (*(u64*)&DevPtr->DsaAddr)
#define ISERIES_DEVNODE(PciDev) ((struct iSeries_Device_Node*)PciDev->sysdata)

#define EADsMaxAgents 7
/************************************************************************************/
/* Decodes Linux DevFn to iSeries DevFn, bridge device, or function.                */
/* For Linux, see PCI_SLOT and PCI_FUNC in include/linux/pci.h                      */
/************************************************************************************/
#define ISERIES_DECODE_DEVFN(linuxdevfn)  (((linuxdevfn & 0x71) << 1) | (linuxdevfn & 0x07))
#define ISERIES_DECODE_DEVICE(linuxdevfn) (((linuxdevfn & 0x38) >> 3) |(((linuxdevfn & 0x40) >> 2) + 0x10))
#define ISERIES_DECODE_FUNCTION(linuxdevfn) (linuxdevfn & 0x07)
#define ISERIES_PCI_AGENTID(idsel,func)	((idsel & 0x0F) << 4) | (func  & 0x07)

#define ISERIES_GET_DEVICE_FROM_SUBBUS(subbus)   ((subbus >> 5) & 0x7)
#define ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus) ((subbus >> 2) & 0x7)

#define ISERIES_ENCODE_DEVICE(agentid)	((0x10) | ((agentid&0x20)>>2) | (agentid&07))
/************************************************************************************/
/* Converts Virtual Address to Real Address for Hypervisor calls                    */
/************************************************************************************/
#define REALADDR(virtaddr)  (0x8000000000000000 | (virt_to_absolute((u64)virtaddr) ))

/************************************************************************************/
/* Define TRUE and FALSE Values for Al                                              */
/************************************************************************************/
#ifndef TRUE
#define TRUE 1
#endif
#ifndef FALSE
#define FALSE 0
#endif

/************************************************************************/
/* iSeries Device Information                                           */
/************************************************************************/
struct iSeries_Device_Node {
	struct list_head Device_List;    /* Must be first for cast to wo*/
	struct pci_dev*  PciDev;         /* Pointer to pci_dev structure*/
        struct HvCallPci_DsaAddr DsaAddr;/* Direct Select Address       */
                                         /* busNumber,subBusNumber,     */ 
	                                 /* deviceId, barNumber         */
	HvAgentId        AgentId;	 /* Hypervisor DevFn            */
	int              DevFn;          /* Linux devfn                 */
	int              BarOffset;
	int              Irq;            /* Assigned IRQ                */
	int              ReturnCode;	 /* Return Code Holder          */
	int              IoRetry;        /* Current Retry Count         */
	int              Flags;          /* Possible flags(disable/bist)*/
	u16              Vendor;         /* Vendor ID                   */
	u8               LogicalSlot;    /* Hv Slot Index for Tces      */
	struct TceTable* DevTceTable;    /* Device TCE Table            */
	spinlock_t       IoLock;	 /* Lock to single thread device*/
	u8               PhbId;          /* Phb Card is on.             */
	u16              Board;          /* Board Number                */
	u8               FrameId;	 /* iSeries spcn Frame Id       */
	char             CardLocation[4];/* Char format of planar vpd   */
	char             Location[20];   /* Frame  1, Card C10          */
};
/************************************************************************/
/* Location Data extracted from the VPD list and device info.           */
/************************************************************************/
struct LocationDataStruct { 	/* Location data structure for device  */
	u16  Bus;               /* iSeries Bus Number              0x00*/
	u16  Board;             /* iSeries Board                   0x02*/
	u8   FrameId;           /* iSeries spcn Frame Id           0x04*/
	u8   PhbId;             /* iSeries Phb Location            0x05*/
	u8   AgentId;           /* iSeries AgentId                 0x06*/
	u8   Card;
	char CardLocation[4];      
};
typedef struct LocationDataStruct  LocationData;
#define LOCATION_DATA_SIZE      48
/************************************************************************/
/* Flight Recorder tracing                                              */
/************************************************************************/
extern int  iSeries_Set_PciTraceFlag(int TraceFlag);
extern int  iSeries_Get_PciTraceFlag(void);

/************************************************************************/
/* Functions                                                            */
/************************************************************************/
extern LocationData* iSeries_GetLocationData(struct pci_dev* PciDev);
extern int           iSeries_Device_Information(struct pci_dev*,char*, int);
extern void          iSeries_Get_Location_Code(struct iSeries_Device_Node*);
extern int           iSeries_Device_ToggleReset(struct pci_dev* PciDev, int AssertTime, int DelayTime);

#endif /* _ISERIES_64_PCI_H */