blob: 43fca9170bf26e7a119e3674965b77b296887e05 [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},
Martin K. Petersend974e422012-08-28 14:29:35 -0400175 {"HITACHI", "HUS1530", "*", BLIST_NO_DIF},
Takahiro Yasui627511e2009-11-10 16:22:19 -0500176 {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
Mike Christief70cfa92006-09-30 20:42:31 -0400177 {"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
178 {"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
179 {"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
180 {"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
181 {"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
Hannes Reinecke9ba08832006-06-22 09:19:51 +0200183 {"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700184 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
185 {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
186 {"HP", "C1557A", NULL, BLIST_FORCELUN},
187 {"HP", "C3323-300", "4269", BLIST_NOTQ},
Thomas Bogendoerferc3d83362006-05-16 06:38:29 +0200188 {"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
Mike Christief70cfa92006-09-30 20:42:31 -0400189 {"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
190 {"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
191 {"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
192 {"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
193 {"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
194 {"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
195 {"HP", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
196 {"HP", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
198 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
199 {"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
200 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
Werner Fink82103972011-06-09 10:54:24 +0530201 {"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
203 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
204 {"INSITE", "I325VM", NULL, BLIST_KEY},
205 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
206 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
207 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
208 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
209 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
210 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
211 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
212 {"MICROP", "4110", NULL, BLIST_NOTQ},
213 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
214 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
215 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
216 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
217 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Mike Christie12427d92006-09-30 20:42:30 -0400218 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
220 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
221 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
222 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
223 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Karl Magnus Kolstoef4fd20b2005-10-17 10:05:42 +0200224 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Ed Line0b2e592007-05-09 20:50:33 -0800225 {"Promise", "", NULL, BLIST_SPARSELUN},
Matthew Wilcox2ffb45c2007-07-26 11:39:46 -0400226 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
228 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
229 {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
230 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
231 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
232 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
233 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
234 {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Anton Blanchard48690402005-09-06 18:08:14 +1000235 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
ILLES, Martondebf4772009-01-12 15:45:52 +0100236 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
James Bottomley4aa312b2009-06-13 09:21:43 -0500237 {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700238 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
239 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
240 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
241 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
242 {"SUN", "T300", "*", BLIST_SPARSELUN},
243 {"SUN", "T4", "*", BLIST_SPARSELUN},
244 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
Mike Christie5f619c52006-09-30 20:42:29 -0400245 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
247 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
Werner Fink82103972011-06-09 10:54:24 +0530248 {"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
250 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
251 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
252 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
253 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
254 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
255 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
256 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
257 { NULL, NULL, NULL, 0 },
258};
259
James Bottomley598fa4b2009-06-17 15:01:58 -0400260static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
261{
262 struct scsi_dev_info_list_table *devinfo_table;
263 int found = 0;
264
265 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
266 if (devinfo_table->key == key) {
267 found = 1;
268 break;
269 }
270 if (!found)
271 return ERR_PTR(-EINVAL);
272
273 return devinfo_table;
274}
275
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276/*
277 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
278 * devinfo vendor and model strings.
279 */
280static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
281 char *from, int compatible)
282{
283 size_t from_length;
284
285 from_length = strlen(from);
286 strncpy(to, from, min(to_length, from_length));
287 if (from_length < to_length) {
288 if (compatible) {
289 /*
290 * NUL terminate the string if it is short.
291 */
292 to[from_length] = '\0';
293 } else {
294 /*
295 * space pad the string if it is short.
296 */
297 strncpy(&to[from_length], spaces,
298 to_length - from_length);
299 }
300 }
301 if (from_length > to_length)
302 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700303 __func__, name, from);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304}
305
306/**
Rob Landleyeb448202007-11-03 13:30:39 -0500307 * scsi_dev_info_list_add - add one dev_info list entry.
308 * @compatible: if true, null terminate short strings. Otherwise space pad.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700309 * @vendor: vendor string
310 * @model: model (product) string
311 * @strflags: integer string
Rob Landleyeb448202007-11-03 13:30:39 -0500312 * @flags: if strflags NULL, use this flag value
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313 *
314 * Description:
315 * Create and add one dev_info entry for @vendor, @model, @strflags or
316 * @flag. If @compatible, add to the tail of the list, do not space
317 * pad, and set devinfo->compatible. The scsi_static_device_list entries
318 * are added with @compatible 1 and @clfags NULL.
319 *
320 * Returns: 0 OK, -error on failure.
321 **/
322static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
323 char *strflags, int flags)
324{
James Bottomley598fa4b2009-06-17 15:01:58 -0400325 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
326 strflags, flags,
327 SCSI_DEVINFO_GLOBAL);
328}
329
330/**
331 * scsi_dev_info_list_add_keyed - add one dev_info list entry.
332 * @compatible: if true, null terminate short strings. Otherwise space pad.
333 * @vendor: vendor string
334 * @model: model (product) string
335 * @strflags: integer string
336 * @flags: if strflags NULL, use this flag value
337 * @key: specify list to use
338 *
339 * Description:
340 * Create and add one dev_info entry for @vendor, @model,
341 * @strflags or @flag in list specified by @key. If @compatible,
342 * add to the tail of the list, do not space pad, and set
343 * devinfo->compatible. The scsi_static_device_list entries are
344 * added with @compatible 1 and @clfags NULL.
345 *
346 * Returns: 0 OK, -error on failure.
347 **/
348int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
349 char *strflags, int flags, int key)
350{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351 struct scsi_dev_info_list *devinfo;
James Bottomley598fa4b2009-06-17 15:01:58 -0400352 struct scsi_dev_info_list_table *devinfo_table =
353 scsi_devinfo_lookup_by_key(key);
354
355 if (IS_ERR(devinfo_table))
356 return PTR_ERR(devinfo_table);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357
358 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
359 if (!devinfo) {
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700360 printk(KERN_ERR "%s: no memory\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700361 return -ENOMEM;
362 }
363
364 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
365 vendor, compatible);
366 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
367 model, compatible);
368
369 if (strflags)
370 devinfo->flags = simple_strtoul(strflags, NULL, 0);
371 else
372 devinfo->flags = flags;
373
374 devinfo->compatible = compatible;
375
376 if (compatible)
James Bottomley598fa4b2009-06-17 15:01:58 -0400377 list_add_tail(&devinfo->dev_info_list,
378 &devinfo_table->scsi_dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700379 else
James Bottomley598fa4b2009-06-17 15:01:58 -0400380 list_add(&devinfo->dev_info_list,
381 &devinfo_table->scsi_dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382
383 return 0;
384}
James Bottomley598fa4b2009-06-17 15:01:58 -0400385EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386
387/**
Peter Jones38a039b2011-01-06 15:31:29 -0500388 * scsi_dev_info_list_del_keyed - remove one dev_info list entry.
389 * @vendor: vendor string
390 * @model: model (product) string
391 * @key: specify list to use
392 *
393 * Description:
394 * Remove and destroy one dev_info entry for @vendor, @model
395 * in list specified by @key.
396 *
397 * Returns: 0 OK, -error on failure.
398 **/
399int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
400{
401 struct scsi_dev_info_list *devinfo, *found = NULL;
402 struct scsi_dev_info_list_table *devinfo_table =
403 scsi_devinfo_lookup_by_key(key);
404
405 if (IS_ERR(devinfo_table))
406 return PTR_ERR(devinfo_table);
407
408 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
409 dev_info_list) {
410 if (devinfo->compatible) {
411 /*
412 * Behave like the older version of get_device_flags.
413 */
414 size_t max;
415 /*
416 * XXX why skip leading spaces? If an odd INQUIRY
417 * value, that should have been part of the
418 * scsi_static_device_list[] entry, such as " FOO"
419 * rather than "FOO". Since this code is already
420 * here, and we don't know what device it is
421 * trying to work with, leave it as-is.
422 */
423 max = 8; /* max length of vendor */
424 while ((max > 0) && *vendor == ' ') {
425 max--;
426 vendor++;
427 }
428 /*
429 * XXX removing the following strlen() would be
430 * good, using it means that for a an entry not in
431 * the list, we scan every byte of every vendor
432 * listed in scsi_static_device_list[], and never match
433 * a single one (and still have to compare at
434 * least the first byte of each vendor).
435 */
436 if (memcmp(devinfo->vendor, vendor,
437 min(max, strlen(devinfo->vendor))))
438 continue;
439 /*
440 * Skip spaces again.
441 */
442 max = 16; /* max length of model */
443 while ((max > 0) && *model == ' ') {
444 max--;
445 model++;
446 }
447 if (memcmp(devinfo->model, model,
448 min(max, strlen(devinfo->model))))
449 continue;
450 found = devinfo;
451 } else {
452 if (!memcmp(devinfo->vendor, vendor,
453 sizeof(devinfo->vendor)) &&
454 !memcmp(devinfo->model, model,
455 sizeof(devinfo->model)))
456 found = devinfo;
457 }
458 if (found)
459 break;
460 }
461
462 if (found) {
463 list_del(&found->dev_info_list);
464 kfree(found);
465 return 0;
466 }
467
468 return -ENOENT;
469}
470EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
471
472/**
Rob Landleyeb448202007-11-03 13:30:39 -0500473 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700474 * @dev_list: string of device flags to add
475 *
476 * Description:
477 * Parse dev_list, and add entries to the scsi_dev_info_list.
478 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
479 * dev_list is modified via strsep. Can be called for command line
480 * addition, for proc or mabye a sysfs interface.
481 *
482 * Returns: 0 if OK, -error on failure.
483 **/
484static int scsi_dev_info_list_add_str(char *dev_list)
485{
486 char *vendor, *model, *strflags, *next;
487 char *next_check;
488 int res = 0;
489
490 next = dev_list;
491 if (next && next[0] == '"') {
492 /*
493 * Ignore both the leading and trailing quote.
494 */
495 next++;
496 next_check = ",\"";
497 } else {
498 next_check = ",";
499 }
500
501 /*
502 * For the leading and trailing '"' case, the for loop comes
503 * through the last time with vendor[0] == '\0'.
504 */
505 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
506 && (res == 0); vendor = strsep(&next, ":")) {
507 strflags = NULL;
508 model = strsep(&next, ":");
509 if (model)
510 strflags = strsep(&next, next_check);
511 if (!model || !strflags) {
512 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700513 " '%s'\n", __func__, vendor, model,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514 strflags);
515 res = -EINVAL;
516 } else
517 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
518 model, strflags, 0);
519 }
520 return res;
521}
522
523/**
Rob Landleyeb448202007-11-03 13:30:39 -0500524 * get_device_flags - get device specific flags from the dynamic device list.
525 * @sdev: &scsi_device to get flags for
Linus Torvalds1da177e2005-04-16 15:20:36 -0700526 * @vendor: vendor name
527 * @model: model name
528 *
529 * Description:
James Bottomley598fa4b2009-06-17 15:01:58 -0400530 * Search the global scsi_dev_info_list (specified by list zero)
531 * for an entry matching @vendor and @model, if found, return the
532 * matching flags value, else return the host or global default
533 * settings. Called during scan time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534 **/
James Bottomley7f23e142005-12-01 12:50:13 -0600535int scsi_get_device_flags(struct scsi_device *sdev,
536 const unsigned char *vendor,
537 const unsigned char *model)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538{
James Bottomley598fa4b2009-06-17 15:01:58 -0400539 return scsi_get_device_flags_keyed(sdev, vendor, model,
540 SCSI_DEVINFO_GLOBAL);
541}
542
543
544/**
Randy Dunlap1acf3b02009-11-17 14:53:20 -0800545 * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list
James Bottomley598fa4b2009-06-17 15:01:58 -0400546 * @sdev: &scsi_device to get flags for
547 * @vendor: vendor name
548 * @model: model name
549 * @key: list to look up
550 *
551 * Description:
552 * Search the scsi_dev_info_list specified by @key for an entry
553 * matching @vendor and @model, if found, return the matching
554 * flags value, else return the host or global default settings.
555 * Called during scan time.
556 **/
557int scsi_get_device_flags_keyed(struct scsi_device *sdev,
558 const unsigned char *vendor,
559 const unsigned char *model,
560 int key)
561{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562 struct scsi_dev_info_list *devinfo;
James Bottomley598fa4b2009-06-17 15:01:58 -0400563 struct scsi_dev_info_list_table *devinfo_table;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564
James Bottomley598fa4b2009-06-17 15:01:58 -0400565 devinfo_table = scsi_devinfo_lookup_by_key(key);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566
James Bottomley598fa4b2009-06-17 15:01:58 -0400567 if (IS_ERR(devinfo_table))
568 return PTR_ERR(devinfo_table);
569
570 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
571 dev_info_list) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572 if (devinfo->compatible) {
573 /*
574 * Behave like the older version of get_device_flags.
575 */
576 size_t max;
577 /*
578 * XXX why skip leading spaces? If an odd INQUIRY
579 * value, that should have been part of the
580 * scsi_static_device_list[] entry, such as " FOO"
581 * rather than "FOO". Since this code is already
582 * here, and we don't know what device it is
583 * trying to work with, leave it as-is.
584 */
585 max = 8; /* max length of vendor */
586 while ((max > 0) && *vendor == ' ') {
587 max--;
588 vendor++;
589 }
590 /*
591 * XXX removing the following strlen() would be
592 * good, using it means that for a an entry not in
593 * the list, we scan every byte of every vendor
594 * listed in scsi_static_device_list[], and never match
595 * a single one (and still have to compare at
596 * least the first byte of each vendor).
597 */
598 if (memcmp(devinfo->vendor, vendor,
599 min(max, strlen(devinfo->vendor))))
600 continue;
601 /*
602 * Skip spaces again.
603 */
604 max = 16; /* max length of model */
605 while ((max > 0) && *model == ' ') {
606 max--;
607 model++;
608 }
609 if (memcmp(devinfo->model, model,
610 min(max, strlen(devinfo->model))))
611 continue;
612 return devinfo->flags;
613 } else {
614 if (!memcmp(devinfo->vendor, vendor,
615 sizeof(devinfo->vendor)) &&
616 !memcmp(devinfo->model, model,
617 sizeof(devinfo->model)))
618 return devinfo->flags;
619 }
620 }
James Bottomley598fa4b2009-06-17 15:01:58 -0400621 /* nothing found, return nothing */
622 if (key != SCSI_DEVINFO_GLOBAL)
623 return 0;
624
625 /* except for the global list, where we have an exception */
626 if (sdev->sdev_bflags)
627 return sdev->sdev_bflags;
628
629 return scsi_default_dev_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630}
James Bottomley598fa4b2009-06-17 15:01:58 -0400631EXPORT_SYMBOL(scsi_get_device_flags_keyed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
633#ifdef CONFIG_SCSI_PROC_FS
James Bottomley598fa4b2009-06-17 15:01:58 -0400634struct double_list {
635 struct list_head *top;
636 struct list_head *bottom;
637};
638
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700639static int devinfo_seq_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640{
James Bottomley598fa4b2009-06-17 15:01:58 -0400641 struct double_list *dl = v;
642 struct scsi_dev_info_list_table *devinfo_table =
643 list_entry(dl->top, struct scsi_dev_info_list_table, node);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700644 struct scsi_dev_info_list *devinfo =
James Bottomley598fa4b2009-06-17 15:01:58 -0400645 list_entry(dl->bottom, struct scsi_dev_info_list,
646 dev_info_list);
647
648 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
649 devinfo_table->name)
650 seq_printf(m, "[%s]:\n", devinfo_table->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700652 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
James Bottomley598fa4b2009-06-17 15:01:58 -0400653 devinfo->vendor, devinfo->model, devinfo->flags);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700654 return 0;
655}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700656
James Bottomley598fa4b2009-06-17 15:01:58 -0400657static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700658{
James Bottomley598fa4b2009-06-17 15:01:58 -0400659 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
660 loff_t pos = *ppos;
661
662 if (!dl)
663 return NULL;
664
665 list_for_each(dl->top, &scsi_dev_info_list) {
666 struct scsi_dev_info_list_table *devinfo_table =
667 list_entry(dl->top, struct scsi_dev_info_list_table,
668 node);
669 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
670 if (pos-- == 0)
671 return dl;
672 }
673
674 kfree(dl);
675 return NULL;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700676}
677
James Bottomley598fa4b2009-06-17 15:01:58 -0400678static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700679{
James Bottomley598fa4b2009-06-17 15:01:58 -0400680 struct double_list *dl = v;
681 struct scsi_dev_info_list_table *devinfo_table =
682 list_entry(dl->top, struct scsi_dev_info_list_table, node);
683
684 ++*ppos;
685 dl->bottom = dl->bottom->next;
686 while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
687 dl->top = dl->top->next;
688 if (dl->top == &scsi_dev_info_list) {
689 kfree(dl);
690 return NULL;
691 }
692 devinfo_table = list_entry(dl->top,
693 struct scsi_dev_info_list_table,
694 node);
695 dl->bottom = devinfo_table->scsi_dev_info_list.next;
696 }
697
698 return dl;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700699}
700
701static void devinfo_seq_stop(struct seq_file *m, void *v)
702{
James Bottomley598fa4b2009-06-17 15:01:58 -0400703 kfree(v);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700704}
705
706static const struct seq_operations scsi_devinfo_seq_ops = {
707 .start = devinfo_seq_start,
708 .next = devinfo_seq_next,
709 .stop = devinfo_seq_stop,
710 .show = devinfo_seq_show,
711};
712
713static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
714{
715 return seq_open(file, &scsi_devinfo_seq_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716}
717
718/*
Rob Landleyeb448202007-11-03 13:30:39 -0500719 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700720 *
Rob Landleyeb448202007-11-03 13:30:39 -0500721 * Description: Adds a black/white list entry for vendor and model with an
722 * integer value of flag to the scsi device info list.
723 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 */
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700725static ssize_t proc_scsi_devinfo_write(struct file *file,
726 const char __user *buf,
727 size_t length, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700728{
729 char *buffer;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700730 ssize_t err = length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700731
732 if (!buf || length>PAGE_SIZE)
733 return -EINVAL;
734 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
735 return -ENOMEM;
736 if (copy_from_user(buffer, buf, length)) {
737 err =-EFAULT;
738 goto out;
739 }
740
741 if (length < PAGE_SIZE)
742 buffer[length] = '\0';
743 else if (buffer[PAGE_SIZE-1]) {
744 err = -EINVAL;
745 goto out;
746 }
747
748 scsi_dev_info_list_add_str(buffer);
749
750out:
751 free_page((unsigned long)buffer);
752 return err;
753}
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700754
755static const struct file_operations scsi_devinfo_proc_fops = {
756 .owner = THIS_MODULE,
757 .open = proc_scsi_devinfo_open,
758 .read = seq_read,
759 .write = proc_scsi_devinfo_write,
760 .llseek = seq_lseek,
761 .release = seq_release,
762};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763#endif /* CONFIG_SCSI_PROC_FS */
764
765module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
766MODULE_PARM_DESC(dev_flags,
767 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
768 " list entries for vendor and model with an integer value of flags"
769 " to the scsi device info list");
770
771module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
772MODULE_PARM_DESC(default_dev_flags,
773 "scsi default device flag integer value");
774
775/**
Randy Dunlap1acf3b02009-11-17 14:53:20 -0800776 * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777 **/
778void scsi_exit_devinfo(void)
779{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780#ifdef CONFIG_SCSI_PROC_FS
781 remove_proc_entry("scsi/device_info", NULL);
782#endif
783
James Bottomley598fa4b2009-06-17 15:01:58 -0400784 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
785}
786
787/**
788 * scsi_dev_info_add_list - add a new devinfo list
789 * @key: key of the list to add
790 * @name: Name of the list to add (for /proc/scsi/device_info)
791 *
792 * Adds the requested list, returns zero on success, -EEXIST if the
793 * key is already registered to a list, or other error on failure.
794 */
795int scsi_dev_info_add_list(int key, const char *name)
796{
797 struct scsi_dev_info_list_table *devinfo_table =
798 scsi_devinfo_lookup_by_key(key);
799
800 if (!IS_ERR(devinfo_table))
801 /* list already exists */
802 return -EEXIST;
803
804 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
805
806 if (!devinfo_table)
807 return -ENOMEM;
808
809 INIT_LIST_HEAD(&devinfo_table->node);
810 INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
811 devinfo_table->name = name;
812 devinfo_table->key = key;
813 list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
814
815 return 0;
816}
817EXPORT_SYMBOL(scsi_dev_info_add_list);
818
819/**
820 * scsi_dev_info_remove_list - destroy an added devinfo list
821 * @key: key of the list to destroy
822 *
823 * Iterates over the entire list first, freeing all the values, then
824 * frees the list itself. Returns 0 on success or -EINVAL if the key
825 * can't be found.
826 */
827int scsi_dev_info_remove_list(int key)
828{
829 struct list_head *lh, *lh_next;
830 struct scsi_dev_info_list_table *devinfo_table =
831 scsi_devinfo_lookup_by_key(key);
832
833 if (IS_ERR(devinfo_table))
834 /* no such list */
835 return -EINVAL;
836
837 /* remove from the master list */
838 list_del(&devinfo_table->node);
839
840 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
841 struct scsi_dev_info_list *devinfo;
842
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843 devinfo = list_entry(lh, struct scsi_dev_info_list,
844 dev_info_list);
845 kfree(devinfo);
846 }
James Bottomley598fa4b2009-06-17 15:01:58 -0400847 kfree(devinfo_table);
848
849 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700850}
James Bottomley598fa4b2009-06-17 15:01:58 -0400851EXPORT_SYMBOL(scsi_dev_info_remove_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852
853/**
Randy Dunlapc93ff972007-11-15 17:07:28 -0800854 * scsi_init_devinfo - set up the dynamic device list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 *
856 * Description:
Rob Landleyeb448202007-11-03 13:30:39 -0500857 * Add command line entries from scsi_dev_flags, then add
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 * scsi_static_device_list entries to the scsi device info list.
Rob Landleyeb448202007-11-03 13:30:39 -0500859 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700860int __init scsi_init_devinfo(void)
861{
862#ifdef CONFIG_SCSI_PROC_FS
863 struct proc_dir_entry *p;
864#endif
865 int error, i;
866
James Bottomley598fa4b2009-06-17 15:01:58 -0400867 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700868 if (error)
869 return error;
870
James Bottomley598fa4b2009-06-17 15:01:58 -0400871 error = scsi_dev_info_list_add_str(scsi_dev_flags);
872 if (error)
873 goto out;
874
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 for (i = 0; scsi_static_device_list[i].vendor; i++) {
876 error = scsi_dev_info_list_add(1 /* compatibile */,
877 scsi_static_device_list[i].vendor,
878 scsi_static_device_list[i].model,
879 NULL,
880 scsi_static_device_list[i].flags);
881 if (error)
882 goto out;
883 }
884
885#ifdef CONFIG_SCSI_PROC_FS
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700886 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887 if (!p) {
888 error = -ENOMEM;
889 goto out;
890 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891#endif /* CONFIG_SCSI_PROC_FS */
892
893 out:
894 if (error)
895 scsi_exit_devinfo();
896 return error;
897}