blob: eaccd651ccda0d239af91ebfb6dfdbd97ac340e3 [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},
Christian Sünkenberg18990452014-11-18 20:23:32 +0100205 {"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
207 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
Mika Westerberg82c43312016-01-27 16:19:13 +0200208 {"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
Todd Fujinakafb2d65d2016-02-09 21:02:07 -0500209 {"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
211 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
212 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
213 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
214 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
215 {"MICROP", "4110", NULL, BLIST_NOTQ},
Martin K. Petersen198a9562014-12-03 21:18:10 -0500216 {"MSFT", "Virtual HD", NULL, BLIST_NO_RSOC},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
218 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
219 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
220 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
221 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Mike Christie12427d92006-09-30 20:42:30 -0400222 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
Hannes Reinecke851cde92016-02-19 09:17:12 +0100223 {"NETAPP", "LUN C-Mode", NULL, BLIST_SYNC_ALUA},
224 {"NETAPP", "INF-01-00", NULL, BLIST_SYNC_ALUA},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
226 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
227 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
228 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
229 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Karl Magnus Kolstoef4fd20b2005-10-17 10:05:42 +0200230 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Janusz Dziemidowicz02134362014-07-24 15:48:46 +0200231 {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
Ed Line0b2e592007-05-09 20:50:33 -0800232 {"Promise", "", NULL, BLIST_SPARSELUN},
Ewan D. Milnefbd83002016-05-31 09:42:29 -0400233 {"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES},
Mike Christie35e9a9f2015-04-20 22:42:24 -0500234 {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
Mike Christie90550822016-01-07 16:34:05 -0600235 {"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
Matthew Wilcox2ffb45c2007-07-26 11:39:46 -0400236 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
238 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
239 {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
240 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
Martin K. Petersen56f2a802013-04-24 21:19:47 -0400241 {"SEAGATE", "ST900MM0006", NULL, BLIST_SKIP_VPD_PAGES},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
243 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
244 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
245 {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Anton Blanchard48690402005-09-06 18:08:14 +1000246 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
ILLES, Martondebf4772009-01-12 15:45:52 +0100247 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
James Bottomley4aa312b2009-06-13 09:21:43 -0500248 {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
250 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
251 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
252 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
253 {"SUN", "T300", "*", BLIST_SPARSELUN},
254 {"SUN", "T4", "*", BLIST_SPARSELUN},
255 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
Mike Christie5f619c52006-09-30 20:42:29 -0400256 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700257 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
258 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
Werner Fink82103972011-06-09 10:54:24 +0530259 {"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
261 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
262 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
263 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
264 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
265 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
266 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
267 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
268 { NULL, NULL, NULL, 0 },
269};
270
James Bottomley598fa4b2009-06-17 15:01:58 -0400271static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
272{
273 struct scsi_dev_info_list_table *devinfo_table;
274 int found = 0;
275
276 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
277 if (devinfo_table->key == key) {
278 found = 1;
279 break;
280 }
281 if (!found)
282 return ERR_PTR(-EINVAL);
283
284 return devinfo_table;
285}
286
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287/*
288 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
289 * devinfo vendor and model strings.
290 */
291static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
292 char *from, int compatible)
293{
294 size_t from_length;
295
296 from_length = strlen(from);
297 strncpy(to, from, min(to_length, from_length));
298 if (from_length < to_length) {
299 if (compatible) {
300 /*
301 * NUL terminate the string if it is short.
302 */
303 to[from_length] = '\0';
304 } else {
305 /*
306 * space pad the string if it is short.
307 */
308 strncpy(&to[from_length], spaces,
309 to_length - from_length);
310 }
311 }
312 if (from_length > to_length)
313 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700314 __func__, name, from);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315}
316
317/**
Rob Landleyeb448202007-11-03 13:30:39 -0500318 * scsi_dev_info_list_add - add one dev_info list entry.
319 * @compatible: if true, null terminate short strings. Otherwise space pad.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320 * @vendor: vendor string
321 * @model: model (product) string
322 * @strflags: integer string
Rob Landleyeb448202007-11-03 13:30:39 -0500323 * @flags: if strflags NULL, use this flag value
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324 *
325 * Description:
326 * Create and add one dev_info entry for @vendor, @model, @strflags or
327 * @flag. If @compatible, add to the tail of the list, do not space
328 * pad, and set devinfo->compatible. The scsi_static_device_list entries
329 * are added with @compatible 1 and @clfags NULL.
330 *
331 * Returns: 0 OK, -error on failure.
332 **/
333static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
334 char *strflags, int flags)
335{
James Bottomley598fa4b2009-06-17 15:01:58 -0400336 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
337 strflags, flags,
338 SCSI_DEVINFO_GLOBAL);
339}
340
341/**
342 * scsi_dev_info_list_add_keyed - add one dev_info list entry.
343 * @compatible: if true, null terminate short strings. Otherwise space pad.
344 * @vendor: vendor string
345 * @model: model (product) string
346 * @strflags: integer string
347 * @flags: if strflags NULL, use this flag value
348 * @key: specify list to use
349 *
350 * Description:
351 * Create and add one dev_info entry for @vendor, @model,
352 * @strflags or @flag in list specified by @key. If @compatible,
353 * add to the tail of the list, do not space pad, and set
354 * devinfo->compatible. The scsi_static_device_list entries are
355 * added with @compatible 1 and @clfags NULL.
356 *
357 * Returns: 0 OK, -error on failure.
358 **/
359int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
360 char *strflags, int flags, int key)
361{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 struct scsi_dev_info_list *devinfo;
James Bottomley598fa4b2009-06-17 15:01:58 -0400363 struct scsi_dev_info_list_table *devinfo_table =
364 scsi_devinfo_lookup_by_key(key);
365
366 if (IS_ERR(devinfo_table))
367 return PTR_ERR(devinfo_table);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368
369 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
370 if (!devinfo) {
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700371 printk(KERN_ERR "%s: no memory\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 return -ENOMEM;
373 }
374
375 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
376 vendor, compatible);
377 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
378 model, compatible);
379
380 if (strflags)
381 devinfo->flags = simple_strtoul(strflags, NULL, 0);
382 else
383 devinfo->flags = flags;
384
385 devinfo->compatible = compatible;
386
387 if (compatible)
James Bottomley598fa4b2009-06-17 15:01:58 -0400388 list_add_tail(&devinfo->dev_info_list,
389 &devinfo_table->scsi_dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 else
James Bottomley598fa4b2009-06-17 15:01:58 -0400391 list_add(&devinfo->dev_info_list,
392 &devinfo_table->scsi_dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393
394 return 0;
395}
James Bottomley598fa4b2009-06-17 15:01:58 -0400396EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700397
398/**
Alan Sternc42b3652015-08-03 11:57:21 -0400399 * scsi_dev_info_list_find - find a matching dev_info list entry.
Peter Jones38a039b2011-01-06 15:31:29 -0500400 * @vendor: vendor string
401 * @model: model (product) string
402 * @key: specify list to use
403 *
404 * Description:
Alan Sternc42b3652015-08-03 11:57:21 -0400405 * Finds the first dev_info entry matching @vendor, @model
Peter Jones38a039b2011-01-06 15:31:29 -0500406 * in list specified by @key.
407 *
Alan Sternc42b3652015-08-03 11:57:21 -0400408 * Returns: pointer to matching entry, or ERR_PTR on failure.
Peter Jones38a039b2011-01-06 15:31:29 -0500409 **/
Alan Sternc42b3652015-08-03 11:57:21 -0400410static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
411 const char *model, int key)
Peter Jones38a039b2011-01-06 15:31:29 -0500412{
Alan Sternc42b3652015-08-03 11:57:21 -0400413 struct scsi_dev_info_list *devinfo;
Peter Jones38a039b2011-01-06 15:31:29 -0500414 struct scsi_dev_info_list_table *devinfo_table =
415 scsi_devinfo_lookup_by_key(key);
Alan Sternb704f702015-08-03 11:57:29 -0400416 size_t vmax, mmax;
417 const char *vskip, *mskip;
Peter Jones38a039b2011-01-06 15:31:29 -0500418
419 if (IS_ERR(devinfo_table))
Alan Sternc42b3652015-08-03 11:57:21 -0400420 return (struct scsi_dev_info_list *) devinfo_table;
Peter Jones38a039b2011-01-06 15:31:29 -0500421
Alan Sternb704f702015-08-03 11:57:29 -0400422 /* Prepare for "compatible" matches */
423
424 /*
425 * XXX why skip leading spaces? If an odd INQUIRY
426 * value, that should have been part of the
427 * scsi_static_device_list[] entry, such as " FOO"
428 * rather than "FOO". Since this code is already
429 * here, and we don't know what device it is
430 * trying to work with, leave it as-is.
431 */
Alan Stern5e7ff2c2016-06-23 15:05:26 -0400432 vmax = sizeof(devinfo->vendor);
Alan Sternb704f702015-08-03 11:57:29 -0400433 vskip = vendor;
434 while (vmax > 0 && *vskip == ' ') {
435 vmax--;
436 vskip++;
437 }
438 /* Also skip trailing spaces */
439 while (vmax > 0 && vskip[vmax - 1] == ' ')
440 --vmax;
441
Alan Stern5e7ff2c2016-06-23 15:05:26 -0400442 mmax = sizeof(devinfo->model);
Alan Sternb704f702015-08-03 11:57:29 -0400443 mskip = model;
444 while (mmax > 0 && *mskip == ' ') {
445 mmax--;
446 mskip++;
447 }
448 while (mmax > 0 && mskip[mmax - 1] == ' ')
449 --mmax;
450
Peter Jones38a039b2011-01-06 15:31:29 -0500451 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
452 dev_info_list) {
453 if (devinfo->compatible) {
454 /*
455 * Behave like the older version of get_device_flags.
456 */
Alan Sternb704f702015-08-03 11:57:29 -0400457 if (memcmp(devinfo->vendor, vskip, vmax) ||
Alan Stern5e7ff2c2016-06-23 15:05:26 -0400458 (vmax < sizeof(devinfo->vendor) &&
459 devinfo->vendor[vmax]))
Peter Jones38a039b2011-01-06 15:31:29 -0500460 continue;
Alan Sternb704f702015-08-03 11:57:29 -0400461 if (memcmp(devinfo->model, mskip, mmax) ||
Alan Stern5e7ff2c2016-06-23 15:05:26 -0400462 (mmax < sizeof(devinfo->model) &&
463 devinfo->model[mmax]))
Peter Jones38a039b2011-01-06 15:31:29 -0500464 continue;
Alan Sternc42b3652015-08-03 11:57:21 -0400465 return devinfo;
Peter Jones38a039b2011-01-06 15:31:29 -0500466 } else {
467 if (!memcmp(devinfo->vendor, vendor,
468 sizeof(devinfo->vendor)) &&
469 !memcmp(devinfo->model, model,
470 sizeof(devinfo->model)))
Alan Sternc42b3652015-08-03 11:57:21 -0400471 return devinfo;
Peter Jones38a039b2011-01-06 15:31:29 -0500472 }
Peter Jones38a039b2011-01-06 15:31:29 -0500473 }
474
Alan Sternc42b3652015-08-03 11:57:21 -0400475 return ERR_PTR(-ENOENT);
476}
Peter Jones38a039b2011-01-06 15:31:29 -0500477
Alan Sternc42b3652015-08-03 11:57:21 -0400478/**
479 * scsi_dev_info_list_del_keyed - remove one dev_info list entry.
480 * @vendor: vendor string
481 * @model: model (product) string
482 * @key: specify list to use
483 *
484 * Description:
485 * Remove and destroy one dev_info entry for @vendor, @model
486 * in list specified by @key.
487 *
488 * Returns: 0 OK, -error on failure.
489 **/
490int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
491{
492 struct scsi_dev_info_list *found;
493
494 found = scsi_dev_info_list_find(vendor, model, key);
495 if (IS_ERR(found))
496 return PTR_ERR(found);
497
498 list_del(&found->dev_info_list);
499 kfree(found);
500 return 0;
Peter Jones38a039b2011-01-06 15:31:29 -0500501}
502EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
503
504/**
Rob Landleyeb448202007-11-03 13:30:39 -0500505 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700506 * @dev_list: string of device flags to add
507 *
508 * Description:
509 * Parse dev_list, and add entries to the scsi_dev_info_list.
510 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
511 * dev_list is modified via strsep. Can be called for command line
512 * addition, for proc or mabye a sysfs interface.
513 *
514 * Returns: 0 if OK, -error on failure.
515 **/
516static int scsi_dev_info_list_add_str(char *dev_list)
517{
518 char *vendor, *model, *strflags, *next;
519 char *next_check;
520 int res = 0;
521
522 next = dev_list;
523 if (next && next[0] == '"') {
524 /*
525 * Ignore both the leading and trailing quote.
526 */
527 next++;
528 next_check = ",\"";
529 } else {
530 next_check = ",";
531 }
532
533 /*
534 * For the leading and trailing '"' case, the for loop comes
535 * through the last time with vendor[0] == '\0'.
536 */
537 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
538 && (res == 0); vendor = strsep(&next, ":")) {
539 strflags = NULL;
540 model = strsep(&next, ":");
541 if (model)
542 strflags = strsep(&next, next_check);
543 if (!model || !strflags) {
544 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700545 " '%s'\n", __func__, vendor, model,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700546 strflags);
547 res = -EINVAL;
548 } else
549 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
550 model, strflags, 0);
551 }
552 return res;
553}
554
555/**
Rob Landleyeb448202007-11-03 13:30:39 -0500556 * get_device_flags - get device specific flags from the dynamic device list.
557 * @sdev: &scsi_device to get flags for
Linus Torvalds1da177e2005-04-16 15:20:36 -0700558 * @vendor: vendor name
559 * @model: model name
560 *
561 * Description:
James Bottomley598fa4b2009-06-17 15:01:58 -0400562 * Search the global scsi_dev_info_list (specified by list zero)
563 * for an entry matching @vendor and @model, if found, return the
564 * matching flags value, else return the host or global default
565 * settings. Called during scan time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 **/
James Bottomley7f23e142005-12-01 12:50:13 -0600567int scsi_get_device_flags(struct scsi_device *sdev,
568 const unsigned char *vendor,
569 const unsigned char *model)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570{
James Bottomley598fa4b2009-06-17 15:01:58 -0400571 return scsi_get_device_flags_keyed(sdev, vendor, model,
572 SCSI_DEVINFO_GLOBAL);
573}
574
575
576/**
Randy Dunlap1acf3b02009-11-17 14:53:20 -0800577 * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list
James Bottomley598fa4b2009-06-17 15:01:58 -0400578 * @sdev: &scsi_device to get flags for
579 * @vendor: vendor name
580 * @model: model name
581 * @key: list to look up
582 *
583 * Description:
584 * Search the scsi_dev_info_list specified by @key for an entry
585 * matching @vendor and @model, if found, return the matching
586 * flags value, else return the host or global default settings.
587 * Called during scan time.
588 **/
589int scsi_get_device_flags_keyed(struct scsi_device *sdev,
590 const unsigned char *vendor,
591 const unsigned char *model,
592 int key)
593{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594 struct scsi_dev_info_list *devinfo;
Alan Sternc42b3652015-08-03 11:57:21 -0400595 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700596
Alan Sternc42b3652015-08-03 11:57:21 -0400597 devinfo = scsi_dev_info_list_find(vendor, model, key);
598 if (!IS_ERR(devinfo))
599 return devinfo->flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600
Alan Sternc42b3652015-08-03 11:57:21 -0400601 err = PTR_ERR(devinfo);
602 if (err != -ENOENT)
603 return err;
James Bottomley598fa4b2009-06-17 15:01:58 -0400604
James Bottomley598fa4b2009-06-17 15:01:58 -0400605 /* nothing found, return nothing */
606 if (key != SCSI_DEVINFO_GLOBAL)
607 return 0;
608
609 /* except for the global list, where we have an exception */
610 if (sdev->sdev_bflags)
611 return sdev->sdev_bflags;
612
613 return scsi_default_dev_flags;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614}
James Bottomley598fa4b2009-06-17 15:01:58 -0400615EXPORT_SYMBOL(scsi_get_device_flags_keyed);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616
617#ifdef CONFIG_SCSI_PROC_FS
James Bottomley598fa4b2009-06-17 15:01:58 -0400618struct double_list {
619 struct list_head *top;
620 struct list_head *bottom;
621};
622
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700623static int devinfo_seq_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624{
James Bottomley598fa4b2009-06-17 15:01:58 -0400625 struct double_list *dl = v;
626 struct scsi_dev_info_list_table *devinfo_table =
627 list_entry(dl->top, struct scsi_dev_info_list_table, node);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700628 struct scsi_dev_info_list *devinfo =
James Bottomley598fa4b2009-06-17 15:01:58 -0400629 list_entry(dl->bottom, struct scsi_dev_info_list,
630 dev_info_list);
631
632 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
633 devinfo_table->name)
634 seq_printf(m, "[%s]:\n", devinfo_table->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700636 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
James Bottomley598fa4b2009-06-17 15:01:58 -0400637 devinfo->vendor, devinfo->model, devinfo->flags);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700638 return 0;
639}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640
James Bottomley598fa4b2009-06-17 15:01:58 -0400641static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700642{
James Bottomley598fa4b2009-06-17 15:01:58 -0400643 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
644 loff_t pos = *ppos;
645
646 if (!dl)
647 return NULL;
648
649 list_for_each(dl->top, &scsi_dev_info_list) {
650 struct scsi_dev_info_list_table *devinfo_table =
651 list_entry(dl->top, struct scsi_dev_info_list_table,
652 node);
653 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
654 if (pos-- == 0)
655 return dl;
656 }
657
658 kfree(dl);
659 return NULL;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700660}
661
James Bottomley598fa4b2009-06-17 15:01:58 -0400662static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700663{
James Bottomley598fa4b2009-06-17 15:01:58 -0400664 struct double_list *dl = v;
665 struct scsi_dev_info_list_table *devinfo_table =
666 list_entry(dl->top, struct scsi_dev_info_list_table, node);
667
668 ++*ppos;
669 dl->bottom = dl->bottom->next;
670 while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
671 dl->top = dl->top->next;
672 if (dl->top == &scsi_dev_info_list) {
673 kfree(dl);
674 return NULL;
675 }
676 devinfo_table = list_entry(dl->top,
677 struct scsi_dev_info_list_table,
678 node);
679 dl->bottom = devinfo_table->scsi_dev_info_list.next;
680 }
681
682 return dl;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700683}
684
685static void devinfo_seq_stop(struct seq_file *m, void *v)
686{
James Bottomley598fa4b2009-06-17 15:01:58 -0400687 kfree(v);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700688}
689
690static const struct seq_operations scsi_devinfo_seq_ops = {
691 .start = devinfo_seq_start,
692 .next = devinfo_seq_next,
693 .stop = devinfo_seq_stop,
694 .show = devinfo_seq_show,
695};
696
697static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
698{
699 return seq_open(file, &scsi_devinfo_seq_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700}
701
702/*
Rob Landleyeb448202007-11-03 13:30:39 -0500703 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700704 *
Rob Landleyeb448202007-11-03 13:30:39 -0500705 * Description: Adds a black/white list entry for vendor and model with an
706 * integer value of flag to the scsi device info list.
707 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700708 */
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700709static ssize_t proc_scsi_devinfo_write(struct file *file,
710 const char __user *buf,
711 size_t length, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700712{
713 char *buffer;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700714 ssize_t err = length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700715
716 if (!buf || length>PAGE_SIZE)
717 return -EINVAL;
718 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
719 return -ENOMEM;
720 if (copy_from_user(buffer, buf, length)) {
721 err =-EFAULT;
722 goto out;
723 }
724
725 if (length < PAGE_SIZE)
726 buffer[length] = '\0';
727 else if (buffer[PAGE_SIZE-1]) {
728 err = -EINVAL;
729 goto out;
730 }
731
732 scsi_dev_info_list_add_str(buffer);
733
734out:
735 free_page((unsigned long)buffer);
736 return err;
737}
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700738
739static const struct file_operations scsi_devinfo_proc_fops = {
740 .owner = THIS_MODULE,
741 .open = proc_scsi_devinfo_open,
742 .read = seq_read,
743 .write = proc_scsi_devinfo_write,
744 .llseek = seq_lseek,
745 .release = seq_release,
746};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700747#endif /* CONFIG_SCSI_PROC_FS */
748
749module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
750MODULE_PARM_DESC(dev_flags,
751 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
752 " list entries for vendor and model with an integer value of flags"
753 " to the scsi device info list");
754
755module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
756MODULE_PARM_DESC(default_dev_flags,
757 "scsi default device flag integer value");
758
759/**
Randy Dunlap1acf3b02009-11-17 14:53:20 -0800760 * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 **/
762void scsi_exit_devinfo(void)
763{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764#ifdef CONFIG_SCSI_PROC_FS
765 remove_proc_entry("scsi/device_info", NULL);
766#endif
767
James Bottomley598fa4b2009-06-17 15:01:58 -0400768 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
769}
770
771/**
772 * scsi_dev_info_add_list - add a new devinfo list
773 * @key: key of the list to add
774 * @name: Name of the list to add (for /proc/scsi/device_info)
775 *
776 * Adds the requested list, returns zero on success, -EEXIST if the
777 * key is already registered to a list, or other error on failure.
778 */
779int scsi_dev_info_add_list(int key, const char *name)
780{
781 struct scsi_dev_info_list_table *devinfo_table =
782 scsi_devinfo_lookup_by_key(key);
783
784 if (!IS_ERR(devinfo_table))
785 /* list already exists */
786 return -EEXIST;
787
788 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
789
790 if (!devinfo_table)
791 return -ENOMEM;
792
793 INIT_LIST_HEAD(&devinfo_table->node);
794 INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
795 devinfo_table->name = name;
796 devinfo_table->key = key;
797 list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
798
799 return 0;
800}
801EXPORT_SYMBOL(scsi_dev_info_add_list);
802
803/**
804 * scsi_dev_info_remove_list - destroy an added devinfo list
805 * @key: key of the list to destroy
806 *
807 * Iterates over the entire list first, freeing all the values, then
808 * frees the list itself. Returns 0 on success or -EINVAL if the key
809 * can't be found.
810 */
811int scsi_dev_info_remove_list(int key)
812{
813 struct list_head *lh, *lh_next;
814 struct scsi_dev_info_list_table *devinfo_table =
815 scsi_devinfo_lookup_by_key(key);
816
817 if (IS_ERR(devinfo_table))
818 /* no such list */
819 return -EINVAL;
820
821 /* remove from the master list */
822 list_del(&devinfo_table->node);
823
824 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
825 struct scsi_dev_info_list *devinfo;
826
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 devinfo = list_entry(lh, struct scsi_dev_info_list,
828 dev_info_list);
829 kfree(devinfo);
830 }
James Bottomley598fa4b2009-06-17 15:01:58 -0400831 kfree(devinfo_table);
832
833 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700834}
James Bottomley598fa4b2009-06-17 15:01:58 -0400835EXPORT_SYMBOL(scsi_dev_info_remove_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836
837/**
Randy Dunlapc93ff972007-11-15 17:07:28 -0800838 * scsi_init_devinfo - set up the dynamic device list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 *
840 * Description:
Rob Landleyeb448202007-11-03 13:30:39 -0500841 * Add command line entries from scsi_dev_flags, then add
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 * scsi_static_device_list entries to the scsi device info list.
Rob Landleyeb448202007-11-03 13:30:39 -0500843 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844int __init scsi_init_devinfo(void)
845{
846#ifdef CONFIG_SCSI_PROC_FS
847 struct proc_dir_entry *p;
848#endif
849 int error, i;
850
James Bottomley598fa4b2009-06-17 15:01:58 -0400851 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852 if (error)
853 return error;
854
James Bottomley598fa4b2009-06-17 15:01:58 -0400855 error = scsi_dev_info_list_add_str(scsi_dev_flags);
856 if (error)
857 goto out;
858
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859 for (i = 0; scsi_static_device_list[i].vendor; i++) {
860 error = scsi_dev_info_list_add(1 /* compatibile */,
861 scsi_static_device_list[i].vendor,
862 scsi_static_device_list[i].model,
863 NULL,
864 scsi_static_device_list[i].flags);
865 if (error)
866 goto out;
867 }
868
869#ifdef CONFIG_SCSI_PROC_FS
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700870 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871 if (!p) {
872 error = -ENOMEM;
873 goto out;
874 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875#endif /* CONFIG_SCSI_PROC_FS */
876
877 out:
878 if (error)
879 scsi_exit_devinfo();
880 return error;
881}