blob: cf8dfab9489fc9e0ff035c5b3699e95fff435171 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001
2#include <linux/blkdev.h>
3#include <linux/init.h>
4#include <linux/kernel.h>
5#include <linux/module.h>
6#include <linux/moduleparam.h>
7#include <linux/proc_fs.h>
8#include <linux/seq_file.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +09009#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070010
11#include <scsi/scsi_device.h>
12#include <scsi/scsi_devinfo.h>
13
14#include "scsi_priv.h"
15
16
17/*
18 * scsi_dev_info_list: structure to hold black/white listed devices.
19 */
20struct scsi_dev_info_list {
21 struct list_head dev_info_list;
22 char vendor[8];
23 char model[16];
24 unsigned flags;
25 unsigned compatible; /* for use with scsi_static_device_list entries */
26};
27
James Bottomley598fa4b2009-06-17 15:01:58 -040028struct scsi_dev_info_list_table {
29 struct list_head node; /* our node for being on the master list */
30 struct list_head scsi_dev_info_list; /* head of dev info list */
31 const char *name; /* name of list for /proc (NULL for global) */
32 int key; /* unique numeric identifier */
33};
34
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
36static const char spaces[] = " "; /* 16 of them */
37static unsigned scsi_default_dev_flags;
38static LIST_HEAD(scsi_dev_info_list);
39static char scsi_dev_flags[256];
40
41/*
42 * scsi_static_device_list: deprecated list of devices that require
43 * settings that differ from the default, includes black-listed (broken)
44 * devices. The entries here are added to the tail of scsi_dev_info_list
45 * via scsi_dev_info_list_init.
46 *
47 * Do not add to this list, use the command line or proc interface to add
48 * to the scsi_dev_info_list. This table will eventually go away.
49 */
50static struct {
51 char *vendor;
52 char *model;
53 char *revision; /* revision known to be bad, unused */
54 unsigned flags;
55} scsi_static_device_list[] __initdata = {
56 /*
57 * The following devices are known not to tolerate a lun != 0 scan
58 * for one reason or another. Some will respond to all luns,
59 * others will lock up.
60 */
61 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */
62 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */
63 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */
64 {"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */
65 {"HITACHI", "DK312C", "CM81", BLIST_NOLUN}, /* responds to all lun */
66 {"HITACHI", "DK314C", "CR21", BLIST_NOLUN}, /* responds to all lun */
Brian Kingf2536cb2006-04-26 13:48:11 -050067 {"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */
68 {"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 {"IMS", "CDD521/10", "2.06", BLIST_NOLUN}, /* locks up */
70 {"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN}, /* locks up */
71 {"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN}, /* locks up */
72 {"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN}, /* locks up */
73 {"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN}, /* locks up */
74 {"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN}, /* locks up */
75 {"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN}, /* responds to all lun */
76 {"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN}, /* responds to all lun */
77 {"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */
78 {"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN}, /* responds to all lun */
79 {"RODIME", "RO3000S", "2.33", BLIST_NOLUN}, /* locks up */
80 {"SUN", "SENA", NULL, BLIST_NOLUN}, /* responds to all luns */
81 /*
82 * The following causes a failed REQUEST SENSE on lun 1 for
83 * aha152x controller, which causes SCSI code to reset bus.
84 */
85 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
86 /*
87 * The following causes a failed REQUEST SENSE on lun 1 for
88 * aha152x controller, which causes SCSI code to reset bus.
89 */
90 {"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
91 {"SEAGATE", "ST296", "921", BLIST_NOLUN}, /* responds to all lun */
92 {"SEAGATE", "ST1581", "6538", BLIST_NOLUN}, /* responds to all lun */
93 {"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN},
94 {"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN},
95 {"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN},
96 {"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN},
97 {"SONY", "SDT-5000", "3.17", BLIST_SELECT_NO_ATN},
98 {"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN}, /* locks up */
99 {"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN}, /* locks up */
100 /*
101 * The following causes a failed REQUEST SENSE on lun 1 for
102 * seagate controller, which causes SCSI code to reset bus.
103 */
104 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
105 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */
106 /*
107 * The following causes a failed REQUEST SENSE on lun 1 for
108 * seagate controller, which causes SCSI code to reset bus.
109 */
110 {"HP", "C1750A", "3226", BLIST_NOLUN}, /* scanjet iic */
111 {"HP", "C1790A", "", BLIST_NOLUN}, /* scanjet iip */
112 {"HP", "C2500A", "", BLIST_NOLUN}, /* scanjet iicx */
113 {"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN}, /* locks up */
114 {"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN}, /* responds to all lun */
115 {"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN}, /* locks up */
116 {"NEC", "D3856", "0009", BLIST_NOLUN},
117 {"QUANTUM", "LPS525S", "3110", BLIST_NOLUN}, /* locks up */
118 {"QUANTUM", "PD1225S", "3110", BLIST_NOLUN}, /* locks up */
119 {"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN}, /* locks up */
120 {"RELISYS", "Scorpio", NULL, BLIST_NOLUN}, /* responds to all lun */
121 {"SANKYO", "CP525", "6.64", BLIST_NOLUN}, /* causes failed REQ SENSE, extra reset */
122 {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
James Bottomley1c536312005-09-12 09:15:14 -0500123 {"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 {"YAMAHA", "CDR100", "1.00", BLIST_NOLUN}, /* locks up */
125 {"YAMAHA", "CDR102", "1.00", BLIST_NOLUN}, /* locks up */
126 {"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN}, /* locks up */
127 {"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN}, /* locks up */
Dave Jones0d7323c2005-08-08 19:01:43 -0400128 {"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129
130 /*
131 * Other types of devices that have special flags.
132 * Note that all USB devices should have the BLIST_INQUIRY_36 flag.
133 */
134 {"3PARdata", "VV", NULL, BLIST_REPORTLUN2},
135 {"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
136 {"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
137 {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
138 {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36},
Matthew Wilcox80dc3e02007-07-05 08:57:50 -0600139 {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN},
Matthew Wilcox98acfc72006-03-01 12:04:46 -0700140 {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 {"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
142 {"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36},
143 {"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */
144 {"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */
145 {"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */
James Bottomley4d7db042006-03-31 20:07:45 -0600146 {"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN |
147 BLIST_MAX_512 | BLIST_REPORTLUN2}, /* Compaq RA4x00 */
148 {"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512}, /* Compaq RA4x00 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 {"COMPAQ", "CR3500", NULL, BLIST_FORCELUN},
150 {"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
151 {"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
152 {"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
153 {"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN},
James Bottomley507caac2005-08-09 12:57:11 -0500154 {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 {"DELL", "PV660F", NULL, BLIST_SPARSELUN},
156 {"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN},
157 {"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */
158 {"DELL", "PV530F", NULL, BLIST_SPARSELUN},
159 {"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
160 {"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, storage on LUN 0 */
161 {"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, no storage on LUN 0 */
Mike Christie3441afc2006-09-30 20:42:28 -0400162 {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700163 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
164 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
akpm@linux-foundation.org80b1c7bd2007-07-27 13:30:02 -0700165 {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
166 {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
167 {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168 {"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
169 {"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
170 {"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN | BLIST_INQUIRY_36},
171 {"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN | BLIST_INQUIRY_36},
Takahiro Yasui627511e2009-11-10 16:22:19 -0500172 {"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
173 {"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
174 {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
175 {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
Mike Christief70cfa92006-09-30 20:42:31 -0400176 {"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
177 {"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
178 {"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
179 {"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
180 {"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
Hannes Reinecke9ba08832006-06-22 09:19:51 +0200182 {"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
184 {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
185 {"HP", "C1557A", NULL, BLIST_FORCELUN},
186 {"HP", "C3323-300", "4269", BLIST_NOTQ},
Thomas Bogendoerferc3d83362006-05-16 06:38:29 +0200187 {"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
Mike Christief70cfa92006-09-30 20:42:31 -0400188 {"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
189 {"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
190 {"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
191 {"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
192 {"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
193 {"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
194 {"HP", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
195 {"HP", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
197 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
198 {"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
199 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
Werner Fink82103972011-06-09 10:54:24 +0530200 {"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
202 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
203 {"INSITE", "I325VM", NULL, BLIST_KEY},
204 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
205 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
206 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
207 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
208 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
209 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
210 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
211 {"MICROP", "4110", NULL, BLIST_NOTQ},
212 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
213 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
214 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
215 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
216 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Mike Christie12427d92006-09-30 20:42:30 -0400217 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
219 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
220 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
221 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
222 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Karl Magnus Kolstoef4fd20b2005-10-17 10:05:42 +0200223 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Ed Line0b2e592007-05-09 20:50:33 -0800224 {"Promise", "", NULL, BLIST_SPARSELUN},
Matthew Wilcox2ffb45c2007-07-26 11:39:46 -0400225 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
227 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
228 {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
229 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
230 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
231 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
232 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
233 {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Anton Blanchard48690402005-09-06 18:08:14 +1000234 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
ILLES, Martondebf4772009-01-12 15:45:52 +0100235 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
James Bottomley4aa312b2009-06-13 09:21:43 -0500236 {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
238 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
239 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
240 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
241 {"SUN", "T300", "*", BLIST_SPARSELUN},
242 {"SUN", "T4", "*", BLIST_SPARSELUN},
243 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
Mike Christie5f619c52006-09-30 20:42:29 -0400244 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
246 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
Werner Fink82103972011-06-09 10:54:24 +0530247 {"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
249 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
250 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
251 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
252 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
253 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
254 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
255 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
256 { NULL, NULL, NULL, 0 },
257};
258
James Bottomley598fa4b2009-06-17 15:01:58 -0400259static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
260{
261 struct scsi_dev_info_list_table *devinfo_table;
262 int found = 0;
263
264 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
265 if (devinfo_table->key == key) {
266 found = 1;
267 break;
268 }
269 if (!found)
270 return ERR_PTR(-EINVAL);
271
272 return devinfo_table;
273}
274
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275/*
276 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
277 * devinfo vendor and model strings.
278 */
279static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
280 char *from, int compatible)
281{
282 size_t from_length;
283
284 from_length = strlen(from);
285 strncpy(to, from, min(to_length, from_length));
286 if (from_length < to_length) {
287 if (compatible) {
288 /*
289 * NUL terminate the string if it is short.
290 */
291 to[from_length] = '\0';
292 } else {
293 /*
294 * space pad the string if it is short.
295 */
296 strncpy(&to[from_length], spaces,
297 to_length - from_length);
298 }
299 }
300 if (from_length > to_length)
301 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700302 __func__, name, from);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303}
304
305/**
Rob Landleyeb448202007-11-03 13:30:39 -0500306 * scsi_dev_info_list_add - add one dev_info list entry.
307 * @compatible: if true, null terminate short strings. Otherwise space pad.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700308 * @vendor: vendor string
309 * @model: model (product) string
310 * @strflags: integer string
Rob Landleyeb448202007-11-03 13:30:39 -0500311 * @flags: if strflags NULL, use this flag value
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312 *
313 * Description:
314 * Create and add one dev_info entry for @vendor, @model, @strflags or
315 * @flag. If @compatible, add to the tail of the list, do not space
316 * pad, and set devinfo->compatible. The scsi_static_device_list entries
317 * are added with @compatible 1 and @clfags NULL.
318 *
319 * Returns: 0 OK, -error on failure.
320 **/
321static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
322 char *strflags, int flags)
323{
James Bottomley598fa4b2009-06-17 15:01:58 -0400324 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
325 strflags, flags,
326 SCSI_DEVINFO_GLOBAL);
327}
328
329/**
330 * scsi_dev_info_list_add_keyed - add one dev_info list entry.
331 * @compatible: if true, null terminate short strings. Otherwise space pad.
332 * @vendor: vendor string
333 * @model: model (product) string
334 * @strflags: integer string
335 * @flags: if strflags NULL, use this flag value
336 * @key: specify list to use
337 *
338 * Description:
339 * Create and add one dev_info entry for @vendor, @model,
340 * @strflags or @flag in list specified by @key. If @compatible,
341 * add to the tail of the list, do not space pad, and set
342 * devinfo->compatible. The scsi_static_device_list entries are
343 * added with @compatible 1 and @clfags NULL.
344 *
345 * Returns: 0 OK, -error on failure.
346 **/
347int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
348 char *strflags, int flags, int key)
349{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350 struct scsi_dev_info_list *devinfo;
James Bottomley598fa4b2009-06-17 15:01:58 -0400351 struct scsi_dev_info_list_table *devinfo_table =
352 scsi_devinfo_lookup_by_key(key);
353
354 if (IS_ERR(devinfo_table))
355 return PTR_ERR(devinfo_table);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356
357 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
358 if (!devinfo) {
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700359 printk(KERN_ERR "%s: no memory\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360 return -ENOMEM;
361 }
362
363 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
364 vendor, compatible);
365 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
366 model, compatible);
367
368 if (strflags)
369 devinfo->flags = simple_strtoul(strflags, NULL, 0);
370 else
371 devinfo->flags = flags;
372
373 devinfo->compatible = compatible;
374
375 if (compatible)
James Bottomley598fa4b2009-06-17 15:01:58 -0400376 list_add_tail(&devinfo->dev_info_list,
377 &devinfo_table->scsi_dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 else
James Bottomley598fa4b2009-06-17 15:01:58 -0400379 list_add(&devinfo->dev_info_list,
380 &devinfo_table->scsi_dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381
382 return 0;
383}
James Bottomley598fa4b2009-06-17 15:01:58 -0400384EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
386/**
Peter Jones38a039b2011-01-06 15:31:29 -0500387 * scsi_dev_info_list_del_keyed - remove one dev_info list entry.
388 * @vendor: vendor string
389 * @model: model (product) string
390 * @key: specify list to use
391 *
392 * Description:
393 * Remove and destroy one dev_info entry for @vendor, @model
394 * in list specified by @key.
395 *
396 * Returns: 0 OK, -error on failure.
397 **/
398int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
399{
400 struct scsi_dev_info_list *devinfo, *found = NULL;
401 struct scsi_dev_info_list_table *devinfo_table =
402 scsi_devinfo_lookup_by_key(key);
403
404 if (IS_ERR(devinfo_table))
405 return PTR_ERR(devinfo_table);
406
407 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
408 dev_info_list) {
409 if (devinfo->compatible) {
410 /*
411 * Behave like the older version of get_device_flags.
412 */
413 size_t max;
414 /*
415 * XXX why skip leading spaces? If an odd INQUIRY
416 * value, that should have been part of the
417 * scsi_static_device_list[] entry, such as " FOO"
418 * rather than "FOO". Since this code is already
419 * here, and we don't know what device it is
420 * trying to work with, leave it as-is.
421 */
422 max = 8; /* max length of vendor */
423 while ((max > 0) && *vendor == ' ') {
424 max--;
425 vendor++;
426 }
427 /*
428 * XXX removing the following strlen() would be
429 * good, using it means that for a an entry not in
430 * the list, we scan every byte of every vendor
431 * listed in scsi_static_device_list[], and never match
432 * a single one (and still have to compare at
433 * least the first byte of each vendor).
434 */
435 if (memcmp(devinfo->vendor, vendor,
436 min(max, strlen(devinfo->vendor))))
437 continue;
438 /*
439 * Skip spaces again.
440 */
441 max = 16; /* max length of model */
442 while ((max > 0) && *model == ' ') {
443 max--;
444 model++;
445 }
446 if (memcmp(devinfo->model, model,
447 min(max, strlen(devinfo->model))))
448 continue;
449 found = devinfo;
450 } else {
451 if (!memcmp(devinfo->vendor, vendor,
452 sizeof(devinfo->vendor)) &&
453 !memcmp(devinfo->model, model,
454 sizeof(devinfo->model)))
455 found = devinfo;
456 }
457 if (found)
458 break;
459 }
460
461 if (found) {
462 list_del(&found->dev_info_list);
463 kfree(found);
464 return 0;
465 }
466
467 return -ENOENT;
468}
469EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
470
471/**
Rob Landleyeb448202007-11-03 13:30:39 -0500472 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700473 * @dev_list: string of device flags to add
474 *
475 * Description:
476 * Parse dev_list, and add entries to the scsi_dev_info_list.
477 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
478 * dev_list is modified via strsep. Can be called for command line
479 * addition, for proc or mabye a sysfs interface.
480 *
481 * Returns: 0 if OK, -error on failure.
482 **/
483static int scsi_dev_info_list_add_str(char *dev_list)
484{
485 char *vendor, *model, *strflags, *next;
486 char *next_check;
487 int res = 0;
488
489 next = dev_list;
490 if (next && next[0] == '"') {
491 /*
492 * Ignore both the leading and trailing quote.
493 */
494 next++;
495 next_check = ",\"";
496 } else {
497 next_check = ",";
498 }
499
500 /*
501 * For the leading and trailing '"' case, the for loop comes
502 * through the last time with vendor[0] == '\0'.
503 */
504 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
505 && (res == 0); vendor = strsep(&next, ":")) {
506 strflags = NULL;
507 model = strsep(&next, ":");
508 if (model)
509 strflags = strsep(&next, next_check);
510 if (!model || !strflags) {
511 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700512 " '%s'\n", __func__, vendor, model,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700513 strflags);
514 res = -EINVAL;
515 } else
516 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
517 model, strflags, 0);
518 }
519 return res;
520}
521
522/**
Rob Landleyeb448202007-11-03 13:30:39 -0500523 * get_device_flags - get device specific flags from the dynamic device list.
524 * @sdev: &scsi_device to get flags for
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 * @vendor: vendor name
526 * @model: model name
527 *
528 * Description:
James Bottomley598fa4b2009-06-17 15:01:58 -0400529 * Search the global scsi_dev_info_list (specified by list zero)
530 * for an entry matching @vendor and @model, if found, return the
531 * matching flags value, else return the host or global default
532 * settings. Called during scan time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533 **/
James Bottomley7f23e142005-12-01 12:50:13 -0600534int scsi_get_device_flags(struct scsi_device *sdev,
535 const unsigned char *vendor,
536 const unsigned char *model)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700537{
James Bottomley598fa4b2009-06-17 15:01:58 -0400538 return scsi_get_device_flags_keyed(sdev, vendor, model,
539 SCSI_DEVINFO_GLOBAL);
540}
541
542
543/**
Randy Dunlap1acf3b02009-11-17 14:53:20 -0800544 * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list
James Bottomley598fa4b2009-06-17 15:01:58 -0400545 * @sdev: &scsi_device to get flags for
546 * @vendor: vendor name
547 * @model: model name
548 * @key: list to look up
549 *
550 * Description:
551 * Search the scsi_dev_info_list specified by @key for an entry
552 * matching @vendor and @model, if found, return the matching
553 * flags value, else return the host or global default settings.
554 * Called during scan time.
555 **/
556int scsi_get_device_flags_keyed(struct scsi_device *sdev,
557 const unsigned char *vendor,
558 const unsigned char *model,
559 int key)
560{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561 struct scsi_dev_info_list *devinfo;
James Bottomley598fa4b2009-06-17 15:01:58 -0400562 struct scsi_dev_info_list_table *devinfo_table;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563
James Bottomley598fa4b2009-06-17 15:01:58 -0400564 devinfo_table = scsi_devinfo_lookup_by_key(key);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565
James Bottomley598fa4b2009-06-17 15:01:58 -0400566 if (IS_ERR(devinfo_table))
567 return PTR_ERR(devinfo_table);
568
569 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
570 dev_info_list) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700571 if (devinfo->compatible) {
572 /*
573 * Behave like the older version of get_device_flags.
574 */
575 size_t max;
576 /*
577 * XXX why skip leading spaces? If an odd INQUIRY
578 * value, that should have been part of the
579 * scsi_static_device_list[] entry, such as " FOO"
580 * rather than "FOO". Since this code is already
581 * here, and we don't know what device it is
582 * trying to work with, leave it as-is.
583 */
584 max = 8; /* max length of vendor */
585 while ((max > 0) && *vendor == ' ') {
586 max--;
587 vendor++;
588 }
589 /*
590 * XXX removing the following strlen() would be
591 * good, using it means that for a an entry not in
592 * the list, we scan every byte of every vendor
593 * listed in scsi_static_device_list[], and never match
594 * a single one (and still have to compare at
595 * least the first byte of each vendor).
596 */
597 if (memcmp(devinfo->vendor, vendor,
598 min(max, strlen(devinfo->vendor))))
599 continue;
600 /*
601 * Skip spaces again.
602 */
603 max = 16; /* max length of model */
604 while ((max > 0) && *model == ' ') {
605 max--;
606 model++;
607 }
608 if (memcmp(devinfo->model, model,
609 min(max, strlen(devinfo->model))))
610 continue;
611 return devinfo->flags;
612 } else {
613 if (!memcmp(devinfo->vendor, vendor,
614 sizeof(devinfo->vendor)) &&
615 !memcmp(devinfo->model, model,
616 sizeof(devinfo->model)))
617 return devinfo->flags;
618 }
619 }
James Bottomley598fa4b2009-06-17 15:01:58 -0400620 /* nothing found, return nothing */
621 if (key != SCSI_DEVINFO_GLOBAL)
622 return 0;
623
624 /* except for the global list, where we have an exception */
625 if (sdev->sdev_bflags)
626 return sdev->sdev_bflags;
627
628 return scsi_default_dev_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629}
James Bottomley598fa4b2009-06-17 15:01:58 -0400630EXPORT_SYMBOL(scsi_get_device_flags_keyed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
632#ifdef CONFIG_SCSI_PROC_FS
James Bottomley598fa4b2009-06-17 15:01:58 -0400633struct double_list {
634 struct list_head *top;
635 struct list_head *bottom;
636};
637
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700638static int devinfo_seq_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700639{
James Bottomley598fa4b2009-06-17 15:01:58 -0400640 struct double_list *dl = v;
641 struct scsi_dev_info_list_table *devinfo_table =
642 list_entry(dl->top, struct scsi_dev_info_list_table, node);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700643 struct scsi_dev_info_list *devinfo =
James Bottomley598fa4b2009-06-17 15:01:58 -0400644 list_entry(dl->bottom, struct scsi_dev_info_list,
645 dev_info_list);
646
647 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
648 devinfo_table->name)
649 seq_printf(m, "[%s]:\n", devinfo_table->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700650
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700651 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
James Bottomley598fa4b2009-06-17 15:01:58 -0400652 devinfo->vendor, devinfo->model, devinfo->flags);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700653 return 0;
654}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655
James Bottomley598fa4b2009-06-17 15:01:58 -0400656static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700657{
James Bottomley598fa4b2009-06-17 15:01:58 -0400658 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
659 loff_t pos = *ppos;
660
661 if (!dl)
662 return NULL;
663
664 list_for_each(dl->top, &scsi_dev_info_list) {
665 struct scsi_dev_info_list_table *devinfo_table =
666 list_entry(dl->top, struct scsi_dev_info_list_table,
667 node);
668 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
669 if (pos-- == 0)
670 return dl;
671 }
672
673 kfree(dl);
674 return NULL;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700675}
676
James Bottomley598fa4b2009-06-17 15:01:58 -0400677static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700678{
James Bottomley598fa4b2009-06-17 15:01:58 -0400679 struct double_list *dl = v;
680 struct scsi_dev_info_list_table *devinfo_table =
681 list_entry(dl->top, struct scsi_dev_info_list_table, node);
682
683 ++*ppos;
684 dl->bottom = dl->bottom->next;
685 while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
686 dl->top = dl->top->next;
687 if (dl->top == &scsi_dev_info_list) {
688 kfree(dl);
689 return NULL;
690 }
691 devinfo_table = list_entry(dl->top,
692 struct scsi_dev_info_list_table,
693 node);
694 dl->bottom = devinfo_table->scsi_dev_info_list.next;
695 }
696
697 return dl;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700698}
699
700static void devinfo_seq_stop(struct seq_file *m, void *v)
701{
James Bottomley598fa4b2009-06-17 15:01:58 -0400702 kfree(v);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700703}
704
705static const struct seq_operations scsi_devinfo_seq_ops = {
706 .start = devinfo_seq_start,
707 .next = devinfo_seq_next,
708 .stop = devinfo_seq_stop,
709 .show = devinfo_seq_show,
710};
711
712static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
713{
714 return seq_open(file, &scsi_devinfo_seq_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715}
716
717/*
Rob Landleyeb448202007-11-03 13:30:39 -0500718 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719 *
Rob Landleyeb448202007-11-03 13:30:39 -0500720 * Description: Adds a black/white list entry for vendor and model with an
721 * integer value of flag to the scsi device info list.
722 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723 */
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700724static ssize_t proc_scsi_devinfo_write(struct file *file,
725 const char __user *buf,
726 size_t length, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727{
728 char *buffer;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700729 ssize_t err = length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730
731 if (!buf || length>PAGE_SIZE)
732 return -EINVAL;
733 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
734 return -ENOMEM;
735 if (copy_from_user(buffer, buf, length)) {
736 err =-EFAULT;
737 goto out;
738 }
739
740 if (length < PAGE_SIZE)
741 buffer[length] = '\0';
742 else if (buffer[PAGE_SIZE-1]) {
743 err = -EINVAL;
744 goto out;
745 }
746
747 scsi_dev_info_list_add_str(buffer);
748
749out:
750 free_page((unsigned long)buffer);
751 return err;
752}
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700753
754static const struct file_operations scsi_devinfo_proc_fops = {
755 .owner = THIS_MODULE,
756 .open = proc_scsi_devinfo_open,
757 .read = seq_read,
758 .write = proc_scsi_devinfo_write,
759 .llseek = seq_lseek,
760 .release = seq_release,
761};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762#endif /* CONFIG_SCSI_PROC_FS */
763
764module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
765MODULE_PARM_DESC(dev_flags,
766 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
767 " list entries for vendor and model with an integer value of flags"
768 " to the scsi device info list");
769
770module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
771MODULE_PARM_DESC(default_dev_flags,
772 "scsi default device flag integer value");
773
774/**
Randy Dunlap1acf3b02009-11-17 14:53:20 -0800775 * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
Linus Torvalds1da177e2005-04-16 15:20:36 -0700776 **/
777void scsi_exit_devinfo(void)
778{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779#ifdef CONFIG_SCSI_PROC_FS
780 remove_proc_entry("scsi/device_info", NULL);
781#endif
782
James Bottomley598fa4b2009-06-17 15:01:58 -0400783 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
784}
785
786/**
787 * scsi_dev_info_add_list - add a new devinfo list
788 * @key: key of the list to add
789 * @name: Name of the list to add (for /proc/scsi/device_info)
790 *
791 * Adds the requested list, returns zero on success, -EEXIST if the
792 * key is already registered to a list, or other error on failure.
793 */
794int scsi_dev_info_add_list(int key, const char *name)
795{
796 struct scsi_dev_info_list_table *devinfo_table =
797 scsi_devinfo_lookup_by_key(key);
798
799 if (!IS_ERR(devinfo_table))
800 /* list already exists */
801 return -EEXIST;
802
803 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
804
805 if (!devinfo_table)
806 return -ENOMEM;
807
808 INIT_LIST_HEAD(&devinfo_table->node);
809 INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
810 devinfo_table->name = name;
811 devinfo_table->key = key;
812 list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
813
814 return 0;
815}
816EXPORT_SYMBOL(scsi_dev_info_add_list);
817
818/**
819 * scsi_dev_info_remove_list - destroy an added devinfo list
820 * @key: key of the list to destroy
821 *
822 * Iterates over the entire list first, freeing all the values, then
823 * frees the list itself. Returns 0 on success or -EINVAL if the key
824 * can't be found.
825 */
826int scsi_dev_info_remove_list(int key)
827{
828 struct list_head *lh, *lh_next;
829 struct scsi_dev_info_list_table *devinfo_table =
830 scsi_devinfo_lookup_by_key(key);
831
832 if (IS_ERR(devinfo_table))
833 /* no such list */
834 return -EINVAL;
835
836 /* remove from the master list */
837 list_del(&devinfo_table->node);
838
839 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
840 struct scsi_dev_info_list *devinfo;
841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 devinfo = list_entry(lh, struct scsi_dev_info_list,
843 dev_info_list);
844 kfree(devinfo);
845 }
James Bottomley598fa4b2009-06-17 15:01:58 -0400846 kfree(devinfo_table);
847
848 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849}
James Bottomley598fa4b2009-06-17 15:01:58 -0400850EXPORT_SYMBOL(scsi_dev_info_remove_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851
852/**
Randy Dunlapc93ff972007-11-15 17:07:28 -0800853 * scsi_init_devinfo - set up the dynamic device list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854 *
855 * Description:
Rob Landleyeb448202007-11-03 13:30:39 -0500856 * Add command line entries from scsi_dev_flags, then add
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857 * scsi_static_device_list entries to the scsi device info list.
Rob Landleyeb448202007-11-03 13:30:39 -0500858 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859int __init scsi_init_devinfo(void)
860{
861#ifdef CONFIG_SCSI_PROC_FS
862 struct proc_dir_entry *p;
863#endif
864 int error, i;
865
James Bottomley598fa4b2009-06-17 15:01:58 -0400866 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 if (error)
868 return error;
869
James Bottomley598fa4b2009-06-17 15:01:58 -0400870 error = scsi_dev_info_list_add_str(scsi_dev_flags);
871 if (error)
872 goto out;
873
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874 for (i = 0; scsi_static_device_list[i].vendor; i++) {
875 error = scsi_dev_info_list_add(1 /* compatibile */,
876 scsi_static_device_list[i].vendor,
877 scsi_static_device_list[i].model,
878 NULL,
879 scsi_static_device_list[i].flags);
880 if (error)
881 goto out;
882 }
883
884#ifdef CONFIG_SCSI_PROC_FS
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700885 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886 if (!p) {
887 error = -ENOMEM;
888 goto out;
889 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890#endif /* CONFIG_SCSI_PROC_FS */
891
892 out:
893 if (error)
894 scsi_exit_devinfo();
895 return error;
896}