iseries_vpdinfo.c

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/************************************************************************/
/* File iSeries_vpdInfo.c created by Allan Trautman on Fri Feb  2 2001. */
/************************************************************************/
/* This code gets the card location of the hardware                     */
/* Copyright (C) 20yy  <Allan H Trautman> <IBM Corp>                    */
/*                                                                      */
/* 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 2, 2001                                               */
/* End Change Activity                                                  */
/************************************************************************/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <asm/types.h>
#include <asm/resource.h>

#include <asm/iSeries/HvCallPci.h>
#include <asm/iSeries/HvTypes.h>
#include <asm/iSeries/mf.h>
#include <asm/iSeries/LparData.h>
#include <asm/iSeries/HvCallPci.h>
#include <asm/iSeries/iSeries_VpdInfo.h>
#include "iSeries_pci.h"

/************************************************/
/* Size of Bus VPD data                         */
/************************************************/
#define BUS_VPDSIZE      1024
/************************************************/
/* Bus Vpd Tags                                 */
/************************************************/
#define  VpdEndOfDataTag   0x78
#define  VpdEndOfAreaTag   0x79
#define  VpdIdStringTag    0x82
#define  VpdVendorAreaTag  0x84
/************************************************/
/* Mfg Area Tags                                */
/************************************************/
#define  VpdAsmPartNumber 0x504E     // "PN"
#define  VpdFruFlag       0x4647     // "FG"
#define  VpdFruLocation   0x464C     // "FL"
#define  VpdFruFrameId    0x4649     // "FI"
#define  VpdFruPartNumber 0x464E     // "FN"
#define  VpdFruPowerData  0x5052     // "PR"
#define  VpdFruSerial     0x534E     // "SN"
#define  VpdFruType       0x4343     // "CC"
#define  VpdFruCcinExt    0x4345     // "CE"
#define  VpdFruRevision   0x5256     // "RV"
#define  VpdSlotMapFormat 0x4D46     // "MF"
#define  VpdSlotMap       0x534D     // "SM"

/************************************************/
/* Structures of the areas                      */
/************************************************/
struct BusVpdAreaStruct {
    u8  Tag;
    u8  LowLength;
    u8  HighLength;
};
typedef struct BusVpdAreaStruct BusVpdArea;
#define BUS_ENTRY_SIZE   3

struct MfgVpdAreaStruct {
    u16 Tag;
    u8  TagLength;
};
typedef struct MfgVpdAreaStruct MfgVpdArea;
#define MFG_ENTRY_SIZE   3

struct SlotMapFormatStruct {
    u16 Tag;
    u8  TagLength;
    u16 Format;
};

struct FrameIdMapStruct{
    u16 Tag;
    u8  TagLength;
    u8  FrameId;
};
typedef struct FrameIdMapStruct FrameIdMap;

struct SlotMapStruct {
    u8   AgentId;
    u8   SecondaryAgentId;
    u8   PhbId;
    char CardLocation[3];
    char Parms[8];
    char Reserved[2];
};
typedef struct SlotMapStruct SlotMap;
#define SLOT_ENTRY_SIZE   16

/****************************************************************/
/* Prototypes                                                   */
/****************************************************************/
static void  iSeries_Parse_Vpd(BusVpdArea*,    int, LocationData*);
static void  iSeries_Parse_MfgArea(MfgVpdArea*,int, LocationData*);
static void  iSeries_Parse_SlotArea(SlotMap*,  int, LocationData*);
static void  iSeries_Parse_PhbId(BusVpdArea*,  int, LocationData*);

/****************************************************************/
/*                                                              */
/*                                                              */
/*                                                              */
/****************************************************************/
LocationData* iSeries_GetLocationData(struct pci_dev* PciDev) {
    LocationData* LocationPtr = 0;
    BusVpdArea*   BusVpdPtr   = 0;
    int           BusVpdLen   = 0;
    BusVpdPtr  = (BusVpdArea*)kmalloc(BUS_VPDSIZE, GFP_KERNEL);
    BusVpdLen  = HvCallPci_getBusVpd(ISERIES_GET_LPAR_BUS(PciDev->bus->number),REALADDR(BusVpdPtr),BUS_VPDSIZE);
    /* printk("PCI: VpdBuffer 0x%08X \n",(int)BusVpdPtr);          */
    /***************************************************************/
    /* Need to set Agent Id, Bus in location info before the call  */
    /***************************************************************/
    LocationPtr = (LocationData*)kmalloc(LOCATION_DATA_SIZE, GFP_KERNEL);
    LocationPtr->Bus              = ISERIES_GET_LPAR_BUS(PciDev->bus->number);
    LocationPtr->Board            = 0;
    LocationPtr->FrameId          = 0;
    iSeries_Parse_PhbId(BusVpdPtr,BusVpdLen,LocationPtr);
    LocationPtr->Card             = PCI_SLOT(PciDev->devfn);
    strcpy(LocationPtr->CardLocation,"Cxx");
    LocationPtr->AgentId          = ISERIES_DECODE_DEVICE(PciDev->devfn);
    LocationPtr->SecondaryAgentId = 0x10;
    /* And for Reference only.                        */
    LocationPtr->LinuxBus         = PciDev->bus->number;
    LocationPtr->LinuxDevFn       = PciDev->devfn;
    /***************************************************************/
    /* Any data to process?                                        */
    /***************************************************************/
    if(BusVpdLen > 0) {
	iSeries_Parse_Vpd(BusVpdPtr, BUS_VPDSIZE, LocationPtr);
    }
    else {
	ISERIES_PCI_FR("No VPD Data....");
    }
    kfree(BusVpdPtr);

    return LocationPtr;
}
/****************************************************************/
/*                                                              */
/****************************************************************/
void  iSeries_Parse_Vpd(BusVpdArea* VpdData,int VpdLen, LocationData* LocationPtr) {
    MfgVpdArea* MfgVpdPtr = 0;
    int         BusTagLen = 0;
    BusVpdArea* BusVpdPtr = VpdData;
    int         BusVpdLen = VpdLen;
    /*************************************************************/
    /* Make sure this is what I think it is                      */
    /*************************************************************/
    if(BusVpdPtr->Tag != VpdIdStringTag) {            /*0x82     */
	ISERIES_PCI_FR("Not 0x82 start.");