1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
|
/*
* File iSeries_vpdInfo.c created by Allan Trautman on Fri Feb 2 2001.
*
* This code gets the card location of the hardware
* Copyright (C) 2001 <Allan H Trautman> <IBM Corp>
* Copyright (C) 2005 Stephen Rothwel, 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/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/iSeries_pci.h>
/*
* Size of Bus VPD data
*/
#define BUS_VPDSIZE 1024
/*
* Bus Vpd Tags
*/
#define VpdEndOfAreaTag 0x79
#define VpdIdStringTag 0x82
#define VpdVendorAreaTag 0x84
/*
* Mfg Area Tags
*/
#define VpdFruFrameId 0x4649 // "FI"
#define VpdSlotMapFormat 0x4D46 // "MF"
#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
/*
* Parse the Slot Area
*/
static void __init iSeries_Parse_SlotArea(SlotMap *MapPtr, int MapLen,
HvAgentId agent, u8 *PhbId, char card[4])
{
int SlotMapLen = MapLen;
SlotMap *SlotMapPtr = MapPtr;
/*
* Parse Slot label until we find the one requested
*/
while (SlotMapLen > 0) {
if (SlotMapPtr->AgentId == agent) {
/*
* If Phb wasn't found, grab the entry first one found.
*/
if (*PhbId == 0xff)
*PhbId = SlotMapPtr->PhbId;
/* Found it, extract the data. */
if (SlotMapPtr->PhbId == *PhbId) {
memcpy(card, &SlotMapPtr->CardLocation, 3);
card[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 __init iSeries_Parse_MfgArea(u8 *AreaData, int AreaLen,
HvAgentId agent, u8 *PhbId,
u8 *frame, char card[4])
{
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 */
*frame = 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,
agent, PhbId, card);
}
/*
* 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 __init 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 __init iSeries_Parse_Vpd(u8 *VpdData, int VpdDataLen,
HvAgentId agent, u8 *frame, char card[4])
{
u8 *TagPtr = VpdData;
int DataLen = VpdDataLen - 3;
u8 PhbId;
while ((*TagPtr != VpdEndOfAreaTag) && (DataLen > 0)) {
int AreaLen = *(TagPtr + 1) + (*(TagPtr + 2) * 256);
u8 *AreaData = TagPtr + 3;
if (*TagPtr == VpdIdStringTag)
PhbId = iSeries_Parse_PhbId(AreaData, AreaLen);
else if (*TagPtr == VpdVendorAreaTag)
iSeries_Parse_MfgArea(AreaData, AreaLen,
agent, &PhbId, frame, card);
/* Point to next Area. */
TagPtr = AreaData + AreaLen;
DataLen -= AreaLen;
}
}
static void __init iSeries_Get_Location_Code(u16 bus, HvAgentId agent,
u8 *frame, char card[4])
{
int BusVpdLen = 0;
u8 *BusVpdPtr = kmalloc(BUS_VPDSIZE, GFP_KERNEL);
if (BusVpdPtr == NULL) {
printk("PCI: Bus VPD Buffer allocation failure.\n");
return;
}
BusVpdLen = HvCallPci_getBusVpd(bus, ISERIES_HV_ADDR(BusVpdPtr),
BUS_VPDSIZE);
if (BusVpdLen == 0) {
printk("PCI: Bus VPD Buffer zero length.\n");
goto out_free;
}
/* 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");
goto out_free;
}
iSeries_Parse_Vpd(BusVpdPtr, BusVpdLen, agent, frame, card);
out_free:
kfree(BusVpdPtr);
}
/*
* Prints the device information.
* - Pass in pci_dev* pointer to the device.
* - Pass in the device count
*
* Format:
* PCI: Bus 0, Device 26, Vendor 0x12AE Frame 1, Card C10 Ethernet
* controller
*/
void __init iSeries_Device_Information(struct pci_dev *PciDev, int count)
{
struct iSeries_Device_Node *DevNode = PciDev->sysdata;
u16 bus;
u8 frame;
char card[4];
HvSubBusNumber subbus;
HvAgentId agent;
if (DevNode == NULL) {
printk("%d. PCI: iSeries_Device_Information DevNode is NULL\n",
count);
return;
}
bus = ISERIES_BUS(DevNode);
subbus = ISERIES_SUBBUS(DevNode);
agent = ISERIES_PCI_AGENTID(ISERIES_GET_DEVICE_FROM_SUBBUS(subbus),
ISERIES_GET_FUNCTION_FROM_SUBBUS(subbus));
iSeries_Get_Location_Code(bus, agent, &frame, card);
printk("%d. PCI: Bus%3d, Device%3d, Vendor %04X Frame%3d, Card %4s ",
count, bus, PCI_SLOT(PciDev->devfn), PciDev->vendor,
frame, card);
printk("0x%04X\n", (int)(PciDev->class >> 8));
}
|
