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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc64/kernel/iSeries_VpdInfo.c | |
download | op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip op-kernel-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz |
Linux-2.6.12-rc2v2.6.12-rc2
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!
Diffstat (limited to 'arch/ppc64/kernel/iSeries_VpdInfo.c')
-rw-r--r-- | arch/ppc64/kernel/iSeries_VpdInfo.c | 277 |
1 files changed, 277 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/iSeries_VpdInfo.c b/arch/ppc64/kernel/iSeries_VpdInfo.c new file mode 100644 index 0000000..a6f0ff2 --- /dev/null +++ b/arch/ppc64/kernel/iSeries_VpdInfo.c @@ -0,0 +1,277 @@ +/************************************************************************/ +/* 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/LparData.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); +} |