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linux/arch/ppc64/kernel/iSeries_VpdInfo.c
Stephen Rothwell 0bc0ffd5f0 [PATCH] ppc64 iSeries: remove LparData.h 
include/asm-ppc64/iSeries/LparData.h just included a whole lot of other files
to declare variables that would be better declared in those other files.  So,
remove it.  This will reduce that number of things needed to be included in
most cases to access the relevant variables.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 18:46:27 -07:00

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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 */
/* Ported to ppc64, August 20, 2001 */
/* End Change Activity */
/************************************************************************/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/module.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/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
/*
* 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;
int len;
if (DevNode == NULL)
return sprintf(buffer,
"PCI: iSeries_Device_Information DevNode is NULL");
if (BufferSize < 128)
return 0;
len = sprintf(buffer, "PCI: Bus%3d, Device%3d, Vendor %04X ",
ISERIES_BUS(DevNode), PCI_SLOT(PciDev->devfn),
PciDev->vendor);
len += sprintf(buffer + len, "Frame%3d, Card %4s ",
DevNode->FrameId, DevNode->CardLocation);
#ifdef CONFIG_PCI
if (pci_class_name(PciDev->class >> 8) == 0)
len += sprintf(buffer + len, "0x%04X ",
(int)(PciDev->class >> 8));
else
len += sprintf(buffer + len, "%s",
pci_class_name(PciDev->class >> 8));
#endif
return len;
}
/*
* 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;
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;
}
}
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),
ISERIES_HV_ADDR(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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