/************************************************************************/
/* 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 */
/* Ported to ppc64, August 20, 2001 */
/* End Change Activity */
/************************************************************************/
#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/iSeries_VpdInfo.h>
#include <asm/iSeries/iSeries_pci.h>
#include "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 VpdFruFlag 0x4647 // "FG"
#define VpdFruFrameId 0x4649 // "FI"
#define VpdSlotMapFormat 0x4D46 // "MF"
#define VpdAsmPartNumber 0x504E // "PN"
#define VpdFruSerial 0x534E // "SN"
#define VpdSlotMap 0x534D // "SM"
/************************************************/
/* Structures of the areas */
/************************************************/
struct MfgVpdAreaStruct {
u16 Tag;
u8 TagLength;
u8 AreaData1;
u8 AreaData2;
};
typedef struct MfgVpdAreaStruct MfgArea;
#define MFG_ENTRY_SIZE 3
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
/****************************************************************
* *
* Bus, Card, Board, FrameId, CardLocation. *
****************************************************************/
LocationData* iSeries_GetLocationData(struct pci_dev* PciDev)
{
struct iSeries_Device_Node* DevNode = (struct iSeries_Device_Node*)PciDev->sysdata;
LocationData* LocationPtr = (LocationData*)kmalloc(LOCATION_DATA_SIZE, GFP_KERNEL);
if (LocationPtr == NULL) {
printk("PCI: LocationData area allocation failed!\n");
return NULL;
}
memset(LocationPtr,0,LOCATION_DATA_SIZE);
LocationPtr->Bus = ISERIES_BUS(DevNode);
LocationPtr->Board = DevNode->Board;
LocationPtr->FrameId = DevNode->FrameId;
LocationPtr->Card = PCI_SLOT(DevNode->DevFn);
strcpy(&LocationPtr->CardLocation[0],&DevNode->CardLocation[0]);
return LocationPtr;
}
/************************************************************************/
/* Formats the device information. */
/* - Pass in pci_dev* pointer to the device. */
/* - Pass in buffer to place the data. Danger here is the buffer must */
/* be as big as the client says it is. Should be at least 128 bytes.*/
/* Return will the length of the string data put in the buffer. */
/* Format: */
/* PCI: Bus 0, Device 26, Vendor 0x12AE Frame 1, Card C10 Ethernet */
/* controller */
/************************************************************************/
int iSeries_Device_Information(struct pci_dev* PciDev,char* Buffer, int BufferSize)
{
struct iSeries_Device_Node* DevNode = (struct iSeries_Device_Node*)PciDev->sysdata;
char* BufPtr = Buffer;
int LineLen = 0;
if (DevNode == NULL) {
LineLen = sprintf(BufPtr+LineLen, "PCI: iSeries_Device_Information DevNode is NULL");
return LineLen;
}
if (BufferSize >= 128) {
LineLen = sprintf(BufPtr+LineLen,"PCI: Bus%3d, Device%3d, Vendor %04X ",
ISERIES_BUS(DevNode), PCI_SLOT(PciDev->devfn),PciDev->vendor);
LineLen += sprintf(BufPtr+LineLen,"Frame%3d, Card %4s ", DevNode->FrameId,DevNode->CardLocation);
if (pci_class_name(PciDev->class >> 8) == 0) {
LineLen += sprintf(BufPtr+LineLen,"0x%04X ",(int)(PciDev->class >> 8));
}
else {
LineLen += sprintf(BufPtr+LineLen,"%s",pci_class_name(PciDev->class >> 8) );
}
}
return LineLen;
}
/************************************************************************/
/* Build a character string of the device location, Frame 1, Card C10 */
/************************************************************************/
int device_Location(struct pci_dev* PciDev,char* BufPtr)
{
struct iSeries_Device_Node* DevNode = (struct iSeries_Device_Node*)PciDev->sysdata;
return sprintf(BufPtr,"PCI: Bus%3d, AgentId%3d, Vendor %04X, Location %s",
DevNode->DsaAddr.busNumber,
DevNode->AgentId,
DevNode->Vendor,
DevNode->Location);
}
/*****************************************************************/
/* Parse the Slot Area */
/*****************************************************************/
void iSeries_Parse_SlotArea(SlotMap* MapPtr,int MapLen, struct iSeries_Device_Node* DevNode)
{
int SlotMapLen = MapLen;
SlotMap* SlotMapPtr = MapPtr;
/*************************************************************/
/* Parse Slot label until we find the one requrested */
/*************************************************************/
while (SlotMapLen > 0) {
if (SlotMapPtr->AgentId == DevNode->AgentId ) {
/*******************************************************/
/* If Phb wasn't found, grab the entry first one found.*/
/*******************************************************/
if (DevNode->PhbId == 0xff) {
DevNode->PhbId = SlotMapPtr->PhbId;
}
/**************************************************/
/* Found it, extract the data. */
/**************************************************/
if (SlotMapPtr->PhbId == DevNode->PhbId ) {
memcpy(&DevNode->CardLocation,&SlotMapPtr->CardLocation,3);
DevNode->CardLocation[3] = 0;
break;
}
}
/*********************************************************/
/* Point to the next Slot */
/*********************************************************/
SlotMapPtr = (SlotMap*)((char*)SlotMapPtr+SLOT_ENTRY_SIZE);
SlotMapLen -= SLOT_ENTRY_SIZE;
}
}
/*****************************************************************/
/* Parse the Mfg Area */
/*****************************************************************/
static void iSeries_Parse_MfgArea(u8* AreaData,int AreaLen, struct iSeries_Device_Node* DevNode)
{
MfgArea* MfgAreaPtr = (MfgArea*)AreaData;
int MfgAreaLen = AreaLen;
u16 SlotMapFmt = 0;
/*************************************************************/
/* Parse Mfg Data */
/*************************************************************/
while (MfgAreaLen > 0) {
int MfgTagLen = MfgAreaPtr->TagLength;
/*******************************************************/
/* Frame ID (FI 4649020310 ) */
/*******************************************************/
if (MfgAreaPtr->Tag == VpdFruFrameId) { /* FI */
DevNode->FrameId = MfgAreaPtr->AreaData1;
}
/*******************************************************/
/* Slot Map Format (MF 4D46020004 ) */
/*******************************************************/
else if (MfgAreaPtr->Tag == VpdSlotMapFormat){ /* MF */
SlotMapFmt = (MfgAreaPtr->AreaData1*256)+(MfgAreaPtr->AreaData2);
}
/*******************************************************/
/* Slot Map (SM 534D90 */
/*******************************************************/
else if (MfgAreaPtr->Tag == VpdSlotMap){ /* SM */
SlotMap* SlotMapPtr;
if (SlotMapFmt == 0x1004) SlotMapPtr = (SlotMap*)((char*)MfgAreaPtr+MFG_ENTRY_SIZE+1);
else SlotMapPtr = (SlotMap*)((char*)MfgAreaPtr+MFG_ENTRY_SIZE);
iSeries_Parse_SlotArea(SlotMapPtr,MfgTagLen, DevNode);
}
/*********************************************************/
/* Point to the next Mfg Area */
/* Use defined size, sizeof give wrong answer */
/*********************************************************/
MfgAreaPtr = (MfgArea*)((char*)MfgAreaPtr + MfgTagLen + MFG_ENTRY_SIZE);
MfgAreaLen -= (MfgTagLen + MFG_ENTRY_SIZE);
}
}
/*****************************************************************/
/* Look for "BUS".. Data is not Null terminated. */
/* PHBID of 0xFF indicates PHB was not found in VPD Data. */
/*****************************************************************/
static int iSeries_Parse_PhbId(u8* AreaPtr,int AreaLength)
{
u8* PhbPtr = AreaPtr;
int DataLen = AreaLength;
char PhbId = 0xFF;
while (DataLen > 0) {
if (*PhbPtr == 'B' && *(PhbPtr+1) == 'U' && *(PhbPtr+2) == 'S') {
PhbPtr += 3;
while(*PhbPtr == ' ') ++PhbPtr;
PhbId = (*PhbPtr & 0x0F);
break;
}
++PhbPtr;
--DataLen;
}
return PhbId;
}
/****************************************************************/
/* Parse out the VPD Areas */
/****************************************************************/
static void iSeries_Parse_Vpd(u8* VpdData, int VpdDataLen, struct iSeries_Device_Node* DevNode)
{
u8* TagPtr = VpdData;
int DataLen = VpdDataLen-3;
/*************************************************************/
/* Parse the Areas */
/*************************************************************/
while (*TagPtr != VpdEndOfAreaTag && DataLen > 0) {
int AreaLen = *(TagPtr+1) + (*(TagPtr+2)*256);
u8* AreaData = TagPtr+3;
if (*TagPtr == VpdIdStringTag) {
DevNode->PhbId = iSeries_Parse_PhbId(AreaData,AreaLen);
}
else if (*TagPtr == VpdVendorAreaTag) {
iSeries_Parse_MfgArea(AreaData,AreaLen,DevNode);
}
/*********************************************************
* Point to next Area.
*********************************************************/
TagPtr = AreaData + AreaLen;
DataLen -= AreaLen;
}
}
/****************************************************************
* iSeries_Get_Location_Code(struct iSeries_Device_Node*) *
*
****************************************************************/
void iSeries_Get_Location_Code(struct iSeries_Device_Node* DevNode)
{
int BusVpdLen = 0;
u8* BusVpdPtr = (u8*)kmalloc(BUS_VPDSIZE, GFP_KERNEL);
if (BusVpdPtr == NULL) {
printk("PCI: Bus VPD Buffer allocation failure.\n");
return;
}
BusVpdLen = HvCallPci_getBusVpd(ISERIES_BUS(DevNode),REALADDR(BusVpdPtr),BUS_VPDSIZE);
if (BusVpdLen == 0) {
kfree(BusVpdPtr);
printk("PCI: Bus VPD Buffer zero length.\n");
return;
}
//printk("PCI: BusVpdPtr: %p, %d\n",BusVpdPtr, BusVpdLen);
/*************************************************************/
/* Make sure this is what I think it is */
/*************************************************************/
if (*BusVpdPtr != VpdIdStringTag) { /*0x82 */
printk("PCI: Bus VPD Buffer missing starting tag.\n");
kfree(BusVpdPtr);
return;
}
/***************************************************************/
/***************************************************************/
iSeries_Parse_Vpd(BusVpdPtr,BusVpdLen, DevNode);
sprintf(DevNode->Location,"Frame%3d, Card %-4s",DevNode->FrameId,DevNode->CardLocation);
kfree(BusVpdPtr);
}
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