1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
278 lines
8.3 KiB
C
278 lines
8.3 KiB
C
/************************************************************************/
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/* File iSeries_vpdInfo.c created by Allan Trautman on Fri Feb 2 2001. */
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/************************************************************************/
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/* This code gets the card location of the hardware */
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/* Copyright (C) 20yy <Allan H Trautman> <IBM Corp> */
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/* */
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/* This program is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU General Public License as published by */
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/* the Free Software Foundation; either version 2 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, */
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/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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/* GNU General Public License for more details. */
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/* */
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/* You should have received a copy of the GNU General Public License */
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/* along with this program; if not, write to the: */
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/* Free Software Foundation, Inc., */
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/* 59 Temple Place, Suite 330, */
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/* Boston, MA 02111-1307 USA */
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/************************************************************************/
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/* Change Activity: */
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/* Created, Feb 2, 2001 */
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/* Ported to ppc64, August 20, 2001 */
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/* End Change Activity */
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/************************************************************************/
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#include <linux/config.h>
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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <asm/types.h>
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#include <asm/resource.h>
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#include <asm/iSeries/HvCallPci.h>
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#include <asm/iSeries/HvTypes.h>
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#include <asm/iSeries/mf.h>
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#include <asm/iSeries/LparData.h>
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#include <asm/iSeries/iSeries_pci.h>
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#include "pci.h"
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/*
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* Size of Bus VPD data
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*/
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#define BUS_VPDSIZE 1024
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/*
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* Bus Vpd Tags
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*/
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#define VpdEndOfDataTag 0x78
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#define VpdEndOfAreaTag 0x79
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#define VpdIdStringTag 0x82
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#define VpdVendorAreaTag 0x84
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/*
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* Mfg Area Tags
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*/
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#define VpdFruFlag 0x4647 // "FG"
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#define VpdFruFrameId 0x4649 // "FI"
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#define VpdSlotMapFormat 0x4D46 // "MF"
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#define VpdAsmPartNumber 0x504E // "PN"
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#define VpdFruSerial 0x534E // "SN"
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#define VpdSlotMap 0x534D // "SM"
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/*
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* Structures of the areas
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*/
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struct MfgVpdAreaStruct {
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u16 Tag;
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u8 TagLength;
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u8 AreaData1;
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u8 AreaData2;
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};
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typedef struct MfgVpdAreaStruct MfgArea;
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#define MFG_ENTRY_SIZE 3
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struct SlotMapStruct {
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u8 AgentId;
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u8 SecondaryAgentId;
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u8 PhbId;
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char CardLocation[3];
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char Parms[8];
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char Reserved[2];
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};
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typedef struct SlotMapStruct SlotMap;
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#define SLOT_ENTRY_SIZE 16
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/*
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* Formats the device information.
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* - Pass in pci_dev* pointer to the device.
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* - Pass in buffer to place the data. Danger here is the buffer must
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* be as big as the client says it is. Should be at least 128 bytes.
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* Return will the length of the string data put in the buffer.
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* Format:
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* PCI: Bus 0, Device 26, Vendor 0x12AE Frame 1, Card C10 Ethernet
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* controller
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*/
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int iSeries_Device_Information(struct pci_dev *PciDev, char *buffer,
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int BufferSize)
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{
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struct iSeries_Device_Node *DevNode =
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(struct iSeries_Device_Node *)PciDev->sysdata;
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int len;
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if (DevNode == NULL)
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return sprintf(buffer,
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"PCI: iSeries_Device_Information DevNode is NULL");
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if (BufferSize < 128)
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return 0;
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len = sprintf(buffer, "PCI: Bus%3d, Device%3d, Vendor %04X ",
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ISERIES_BUS(DevNode), PCI_SLOT(PciDev->devfn),
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PciDev->vendor);
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len += sprintf(buffer + len, "Frame%3d, Card %4s ",
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DevNode->FrameId, DevNode->CardLocation);
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#ifdef CONFIG_PCI
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if (pci_class_name(PciDev->class >> 8) == 0)
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len += sprintf(buffer + len, "0x%04X ",
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(int)(PciDev->class >> 8));
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else
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len += sprintf(buffer + len, "%s",
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pci_class_name(PciDev->class >> 8));
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#endif
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return len;
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}
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/*
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* Parse the Slot Area
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*/
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void iSeries_Parse_SlotArea(SlotMap *MapPtr, int MapLen,
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struct iSeries_Device_Node *DevNode)
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{
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int SlotMapLen = MapLen;
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SlotMap *SlotMapPtr = MapPtr;
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/*
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* Parse Slot label until we find the one requrested
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*/
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while (SlotMapLen > 0) {
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if (SlotMapPtr->AgentId == DevNode->AgentId ) {
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/*
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* If Phb wasn't found, grab the entry first one found.
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*/
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if (DevNode->PhbId == 0xff)
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DevNode->PhbId = SlotMapPtr->PhbId;
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/* Found it, extract the data. */
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if (SlotMapPtr->PhbId == DevNode->PhbId ) {
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memcpy(&DevNode->CardLocation,
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&SlotMapPtr->CardLocation, 3);
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DevNode->CardLocation[3] = 0;
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break;
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}
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}
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/* Point to the next Slot */
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SlotMapPtr = (SlotMap *)((char *)SlotMapPtr + SLOT_ENTRY_SIZE);
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SlotMapLen -= SLOT_ENTRY_SIZE;
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}
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}
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/*
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* Parse the Mfg Area
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*/
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static void iSeries_Parse_MfgArea(u8 *AreaData, int AreaLen,
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struct iSeries_Device_Node *DevNode)
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{
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MfgArea *MfgAreaPtr = (MfgArea *)AreaData;
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int MfgAreaLen = AreaLen;
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u16 SlotMapFmt = 0;
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/* Parse Mfg Data */
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while (MfgAreaLen > 0) {
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int MfgTagLen = MfgAreaPtr->TagLength;
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/* Frame ID (FI 4649020310 ) */
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if (MfgAreaPtr->Tag == VpdFruFrameId) /* FI */
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DevNode->FrameId = MfgAreaPtr->AreaData1;
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/* Slot Map Format (MF 4D46020004 ) */
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else if (MfgAreaPtr->Tag == VpdSlotMapFormat) /* MF */
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SlotMapFmt = (MfgAreaPtr->AreaData1 * 256)
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+ MfgAreaPtr->AreaData2;
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/* Slot Map (SM 534D90 */
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else if (MfgAreaPtr->Tag == VpdSlotMap) { /* SM */
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SlotMap *SlotMapPtr;
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if (SlotMapFmt == 0x1004)
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SlotMapPtr = (SlotMap *)((char *)MfgAreaPtr
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+ MFG_ENTRY_SIZE + 1);
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else
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SlotMapPtr = (SlotMap *)((char *)MfgAreaPtr
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+ MFG_ENTRY_SIZE);
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iSeries_Parse_SlotArea(SlotMapPtr, MfgTagLen, DevNode);
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}
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/*
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* Point to the next Mfg Area
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* Use defined size, sizeof give wrong answer
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*/
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MfgAreaPtr = (MfgArea *)((char *)MfgAreaPtr + MfgTagLen
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+ MFG_ENTRY_SIZE);
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MfgAreaLen -= (MfgTagLen + MFG_ENTRY_SIZE);
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}
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}
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/*
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* Look for "BUS".. Data is not Null terminated.
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* PHBID of 0xFF indicates PHB was not found in VPD Data.
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*/
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static int iSeries_Parse_PhbId(u8 *AreaPtr, int AreaLength)
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{
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u8 *PhbPtr = AreaPtr;
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int DataLen = AreaLength;
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char PhbId = 0xFF;
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while (DataLen > 0) {
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if ((*PhbPtr == 'B') && (*(PhbPtr + 1) == 'U')
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&& (*(PhbPtr + 2) == 'S')) {
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PhbPtr += 3;
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while (*PhbPtr == ' ')
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++PhbPtr;
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PhbId = (*PhbPtr & 0x0F);
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break;
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}
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++PhbPtr;
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--DataLen;
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}
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return PhbId;
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}
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/*
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* Parse out the VPD Areas
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*/
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static void iSeries_Parse_Vpd(u8 *VpdData, int VpdDataLen,
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struct iSeries_Device_Node *DevNode)
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{
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u8 *TagPtr = VpdData;
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int DataLen = VpdDataLen - 3;
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while ((*TagPtr != VpdEndOfAreaTag) && (DataLen > 0)) {
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int AreaLen = *(TagPtr + 1) + (*(TagPtr + 2) * 256);
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u8 *AreaData = TagPtr + 3;
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if (*TagPtr == VpdIdStringTag)
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DevNode->PhbId = iSeries_Parse_PhbId(AreaData, AreaLen);
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else if (*TagPtr == VpdVendorAreaTag)
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iSeries_Parse_MfgArea(AreaData, AreaLen, DevNode);
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/* Point to next Area. */
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TagPtr = AreaData + AreaLen;
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DataLen -= AreaLen;
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}
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}
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void iSeries_Get_Location_Code(struct iSeries_Device_Node *DevNode)
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{
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int BusVpdLen = 0;
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u8 *BusVpdPtr = (u8 *)kmalloc(BUS_VPDSIZE, GFP_KERNEL);
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if (BusVpdPtr == NULL) {
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printk("PCI: Bus VPD Buffer allocation failure.\n");
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return;
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}
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BusVpdLen = HvCallPci_getBusVpd(ISERIES_BUS(DevNode),
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ISERIES_HV_ADDR(BusVpdPtr),
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BUS_VPDSIZE);
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if (BusVpdLen == 0) {
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kfree(BusVpdPtr);
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printk("PCI: Bus VPD Buffer zero length.\n");
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return;
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}
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/* printk("PCI: BusVpdPtr: %p, %d\n",BusVpdPtr, BusVpdLen); */
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/* Make sure this is what I think it is */
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if (*BusVpdPtr != VpdIdStringTag) { /* 0x82 */
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printk("PCI: Bus VPD Buffer missing starting tag.\n");
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kfree(BusVpdPtr);
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return;
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}
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iSeries_Parse_Vpd(BusVpdPtr,BusVpdLen, DevNode);
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sprintf(DevNode->Location, "Frame%3d, Card %-4s", DevNode->FrameId,
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DevNode->CardLocation);
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kfree(BusVpdPtr);
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}
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