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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | |
3 | #include <linux/blkdev.h> | |
4 | #include <linux/init.h> | |
5 | #include <linux/kernel.h> | |
6 | #include <linux/module.h> | |
7 | #include <linux/moduleparam.h> | |
8 | #include <linux/proc_fs.h> | |
9 | #include <linux/seq_file.h> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
1da177e4 LT |
11 | |
12 | #include <scsi/scsi_device.h> | |
13 | #include <scsi/scsi_devinfo.h> | |
14 | ||
15 | #include "scsi_priv.h" | |
16 | ||
17 | ||
18 | /* | |
19 | * scsi_dev_info_list: structure to hold black/white listed devices. | |
20 | */ | |
21 | struct scsi_dev_info_list { | |
22 | struct list_head dev_info_list; | |
23 | char vendor[8]; | |
24 | char model[16]; | |
5ebde469 | 25 | blist_flags_t flags; |
1da177e4 LT |
26 | unsigned compatible; /* for use with scsi_static_device_list entries */ |
27 | }; | |
28 | ||
598fa4b7 JB |
29 | struct scsi_dev_info_list_table { |
30 | struct list_head node; /* our node for being on the master list */ | |
31 | struct list_head scsi_dev_info_list; /* head of dev info list */ | |
32 | const char *name; /* name of list for /proc (NULL for global) */ | |
33 | int key; /* unique numeric identifier */ | |
34 | }; | |
35 | ||
1da177e4 | 36 | |
5ebde469 | 37 | static blist_flags_t scsi_default_dev_flags; |
1da177e4 LT |
38 | static LIST_HEAD(scsi_dev_info_list); |
39 | static 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 | */ | |
50 | static struct { | |
51 | char *vendor; | |
52 | char *model; | |
53 | char *revision; /* revision known to be bad, unused */ | |
5ebde469 | 54 | blist_flags_t flags; |
1da177e4 LT |
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 */ | |
f2536cbd BK |
67 | {"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */ |
68 | {"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */ | |
1da177e4 LT |
69 | {"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 */ | |
3f884a0a XVP |
111 | {"HP", "C1790A", NULL, BLIST_NOLUN}, /* scanjet iip */ |
112 | {"HP", "C2500A", NULL, BLIST_NOLUN}, /* scanjet iicx */ | |
1da177e4 LT |
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 */ | |
3f884a0a | 122 | {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN | BLIST_BORKEN}, |
1c536315 | 123 | {"transtec", "T5008", "0001", BLIST_NOREPORTLUN }, |
1da177e4 LT |
124 | {"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 */ | |
0d7323c8 | 128 | {"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */ |
1da177e4 LT |
129 | |
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}, | |
c1a7b647 | 137 | {"AIX", "VDASD", NULL, BLIST_TRY_VPD_PAGES}, |
1da177e4 LT |
138 | {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN}, |
139 | {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36}, | |
80dc3e06 | 140 | {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN}, |
98acfc7e | 141 | {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN}, |
1da177e4 LT |
142 | {"CANON", "IPUBJD", NULL, BLIST_SPARSELUN}, |
143 | {"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36}, | |
144 | {"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */ | |
145 | {"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */ | |
146 | {"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */ | |
4d7db04a JB |
147 | {"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | |
148 | BLIST_MAX_512 | BLIST_REPORTLUN2}, /* Compaq RA4x00 */ | |
149 | {"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512}, /* Compaq RA4x00 */ | |
1da177e4 LT |
150 | {"COMPAQ", "CR3500", NULL, BLIST_FORCELUN}, |
151 | {"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD}, | |
152 | {"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD}, | |
153 | {"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, | |
154 | {"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN}, | |
507caac7 | 155 | {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, |
1da177e4 LT |
156 | {"DELL", "PV660F", NULL, BLIST_SPARSELUN}, |
157 | {"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN}, | |
158 | {"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */ | |
159 | {"DELL", "PV530F", NULL, BLIST_SPARSELUN}, | |
160 | {"DELL", "PERCRAID", NULL, BLIST_FORCELUN}, | |
0b7509c7 XVP |
161 | {"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* EMC CLARiiON, storage on LUN 0 */ |
162 | {"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* EMC CLARiiON, no storage on LUN 0 */ | |
3441afc6 | 163 | {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
29cfc2ab MW |
164 | {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | |
165 | BLIST_REPORTLUN2 | BLIST_RETRY_ITF}, | |
1da177e4 | 166 | {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN}, |
80b1c7bd AM |
167 | {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN}, |
168 | {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN}, | |
169 | {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN}, | |
1da177e4 | 170 | {"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
c3606520 | 171 | {"FUJITSU", "ETERNUS_DXM", "*", BLIST_RETRY_ASC_C1}, |
1da177e4 | 172 | {"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36}, |
b15578dd | 173 | {"Generic", "USB Storage-SMC", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36}, /* FW: 0180 and 0207 */ |
9abe6779 | 174 | {"Generic", "Ultra HS-SD/MMC", "2.09", BLIST_IGN_MEDIA_CHANGE | BLIST_INQUIRY_36}, |
627511e3 TY |
175 | {"HITACHI", "DF400", "*", BLIST_REPORTLUN2}, |
176 | {"HITACHI", "DF500", "*", BLIST_REPORTLUN2}, | |
177 | {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2}, | |
d974e426 | 178 | {"HITACHI", "HUS1530", "*", BLIST_NO_DIF}, |
56f3d383 | 179 | {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, |
1da177e4 | 180 | {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */ |
b369a047 | 181 | {"HP", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, /* HP XP Arrays */ |
1da177e4 LT |
182 | {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN}, |
183 | {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, | |
184 | {"HP", "C1557A", NULL, BLIST_FORCELUN}, | |
185 | {"HP", "C3323-300", "4269", BLIST_NOTQ}, | |
c3d83368 | 186 | {"HP", "C5713A", NULL, BLIST_NOREPORTLUN}, |
5f96f42b | 187 | {"HP", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2}, |
e57f5cd9 | 188 | {"HPE", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, |
1da177e4 LT |
189 | {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN}, |
190 | {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
191 | {"IBM", "2105", NULL, BLIST_RETRY_HWERROR}, | |
192 | {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN}, | |
82103978 | 193 | {"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN}, |
1da177e4 LT |
194 | {"IOMEGA", "Io20S *F", NULL, BLIST_KEY}, |
195 | {"INSITE", "Floptical F*8I", NULL, BLIST_KEY}, | |
196 | {"INSITE", "I325VM", NULL, BLIST_KEY}, | |
18990455 | 197 | {"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC}, |
1da177e4 LT |
198 | {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, |
199 | {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN}, | |
82c43310 | 200 | {"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES}, |
fb2d65d2 | 201 | {"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES}, |
1da177e4 LT |
202 | {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
203 | {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, | |
204 | {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, | |
205 | {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN}, | |
206 | {"MegaRAID", "LD", NULL, BLIST_FORCELUN}, | |
207 | {"MICROP", "4110", NULL, BLIST_NOTQ}, | |
4d426803 | 208 | {"MSFT", "Virtual HD", NULL, BLIST_MAX_1024 | BLIST_NO_RSOC}, |
1da177e4 LT |
209 | {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2}, |
210 | {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN}, | |
211 | {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
212 | {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
213 | {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
12427d99 | 214 | {"NEC", "iStorage", NULL, BLIST_REPORTLUN2}, |
1da177e4 LT |
215 | {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
216 | {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
217 | {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
218 | {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
219 | {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
f4fd20bf | 220 | {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
0213436a | 221 | {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC}, |
e0b2e597 | 222 | {"Promise", "", NULL, BLIST_SPARSELUN}, |
fbd83006 | 223 | {"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES}, |
35e9a9f9 | 224 | {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024}, |
9055082f | 225 | {"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024}, |
2ffb45c6 | 226 | {"QUANTUM", "XP34301", "1071", BLIST_NOTQ}, |
1da177e4 LT |
227 | {"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}, | |
56f2a801 | 231 | {"SEAGATE", "ST900MM0006", NULL, BLIST_SKIP_VPD_PAGES}, |
1da177e4 LT |
232 | {"SGI", "RAID3", "*", BLIST_SPARSELUN}, |
233 | {"SGI", "RAID5", "*", BLIST_SPARSELUN}, | |
234 | {"SGI", "TP9100", "*", BLIST_REPORTLUN2}, | |
235 | {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, | |
48690405 | 236 | {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
debf4777 | 237 | {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
4aa312b9 | 238 | {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
c6b269ba XVP |
239 | {"STK", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
240 | {"NETAPP", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, | |
241 | {"LSI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, | |
242 | {"ENGENIO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, | |
1cb1d2c6 | 243 | {"LENOVO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
e094fd34 | 244 | {"FUJITSU", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
4bc02214 MPS |
245 | {"SanDisk", "Cruzer Blade", NULL, BLIST_TRY_VPD_PAGES | |
246 | BLIST_INQUIRY_36}, | |
1da177e4 LT |
247 | {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36}, |
248 | {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN}, | |
249 | {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */ | |
250 | {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR}, | |
251 | {"SUN", "T300", "*", BLIST_SPARSELUN}, | |
252 | {"SUN", "T4", "*", BLIST_SPARSELUN}, | |
5f619c5b | 253 | {"Tornado-", "F4", "*", BLIST_NOREPORTLUN}, |
1da177e4 LT |
254 | {"TOSHIBA", "CDROM", NULL, BLIST_ISROM}, |
255 | {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM}, | |
82103978 | 256 | {"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */ |
1da177e4 LT |
257 | {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36}, |
258 | {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN}, | |
259 | {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN}, | |
260 | {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN}, | |
261 | {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN}, | |
262 | {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
263 | {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN}, | |
264 | {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN}, | |
265 | { NULL, NULL, NULL, 0 }, | |
266 | }; | |
267 | ||
598fa4b7 JB |
268 | static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key) |
269 | { | |
270 | struct scsi_dev_info_list_table *devinfo_table; | |
271 | int found = 0; | |
272 | ||
273 | list_for_each_entry(devinfo_table, &scsi_dev_info_list, node) | |
274 | if (devinfo_table->key == key) { | |
275 | found = 1; | |
276 | break; | |
277 | } | |
278 | if (!found) | |
279 | return ERR_PTR(-EINVAL); | |
280 | ||
281 | return devinfo_table; | |
282 | } | |
283 | ||
1da177e4 LT |
284 | /* |
285 | * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into | |
286 | * devinfo vendor and model strings. | |
287 | */ | |
288 | static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length, | |
289 | char *from, int compatible) | |
290 | { | |
291 | size_t from_length; | |
292 | ||
293 | from_length = strlen(from); | |
81df022b MW |
294 | /* This zero-pads the destination */ |
295 | strncpy(to, from, to_length); | |
296 | if (from_length < to_length && !compatible) { | |
297 | /* | |
298 | * space pad the string if it is short. | |
299 | */ | |
300 | memset(&to[from_length], ' ', to_length - from_length); | |
1da177e4 LT |
301 | } |
302 | if (from_length > to_length) | |
303 | printk(KERN_WARNING "%s: %s string '%s' is too long\n", | |
cadbd4a5 | 304 | __func__, name, from); |
1da177e4 LT |
305 | } |
306 | ||
307 | /** | |
eb44820c RL |
308 | * scsi_dev_info_list_add - add one dev_info list entry. |
309 | * @compatible: if true, null terminate short strings. Otherwise space pad. | |
1da177e4 LT |
310 | * @vendor: vendor string |
311 | * @model: model (product) string | |
312 | * @strflags: integer string | |
eb44820c | 313 | * @flags: if strflags NULL, use this flag value |
1da177e4 LT |
314 | * |
315 | * Description: | |
588c902b HR |
316 | * Create and add one dev_info entry for @vendor, @model, @strflags or |
317 | * @flag. If @compatible, add to the tail of the list, do not space | |
318 | * pad, and set devinfo->compatible. The scsi_static_device_list entries | |
319 | * are added with @compatible 1 and @clfags NULL. | |
1da177e4 LT |
320 | * |
321 | * Returns: 0 OK, -error on failure. | |
322 | **/ | |
323 | static int scsi_dev_info_list_add(int compatible, char *vendor, char *model, | |
5ebde469 | 324 | char *strflags, blist_flags_t flags) |
598fa4b7 JB |
325 | { |
326 | return scsi_dev_info_list_add_keyed(compatible, vendor, model, | |
327 | strflags, flags, | |
328 | SCSI_DEVINFO_GLOBAL); | |
329 | } | |
330 | ||
331 | /** | |
332 | * scsi_dev_info_list_add_keyed - add one dev_info list entry. | |
333 | * @compatible: if true, null terminate short strings. Otherwise space pad. | |
334 | * @vendor: vendor string | |
335 | * @model: model (product) string | |
336 | * @strflags: integer string | |
337 | * @flags: if strflags NULL, use this flag value | |
338 | * @key: specify list to use | |
339 | * | |
340 | * Description: | |
588c902b HR |
341 | * Create and add one dev_info entry for @vendor, @model, |
342 | * @strflags or @flag in list specified by @key. If @compatible, | |
343 | * add to the tail of the list, do not space pad, and set | |
344 | * devinfo->compatible. The scsi_static_device_list entries are | |
345 | * added with @compatible 1 and @clfags NULL. | |
598fa4b7 JB |
346 | * |
347 | * Returns: 0 OK, -error on failure. | |
348 | **/ | |
349 | int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model, | |
4b1d8e78 BVA |
350 | char *strflags, blist_flags_t flags, |
351 | enum scsi_devinfo_key key) | |
1da177e4 LT |
352 | { |
353 | struct scsi_dev_info_list *devinfo; | |
598fa4b7 JB |
354 | struct scsi_dev_info_list_table *devinfo_table = |
355 | scsi_devinfo_lookup_by_key(key); | |
356 | ||
357 | if (IS_ERR(devinfo_table)) | |
358 | return PTR_ERR(devinfo_table); | |
1da177e4 LT |
359 | |
360 | devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL); | |
361 | if (!devinfo) { | |
cadbd4a5 | 362 | printk(KERN_ERR "%s: no memory\n", __func__); |
1da177e4 LT |
363 | return -ENOMEM; |
364 | } | |
365 | ||
366 | scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor), | |
367 | vendor, compatible); | |
368 | scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model), | |
369 | model, compatible); | |
370 | ||
14098803 MW |
371 | if (strflags) { |
372 | unsigned long long val; | |
373 | int ret = kstrtoull(strflags, 0, &val); | |
374 | ||
375 | if (ret != 0) { | |
376 | kfree(devinfo); | |
377 | return ret; | |
378 | } | |
379 | flags = (__force blist_flags_t)val; | |
380 | } | |
358fda5f MW |
381 | if (flags & __BLIST_UNUSED_MASK) { |
382 | pr_err("scsi_devinfo (%s:%s): unsupported flags 0x%llx", | |
383 | vendor, model, flags & __BLIST_UNUSED_MASK); | |
384 | kfree(devinfo); | |
385 | return -EINVAL; | |
386 | } | |
093b8886 | 387 | devinfo->flags = flags; |
1da177e4 LT |
388 | devinfo->compatible = compatible; |
389 | ||
390 | if (compatible) | |
598fa4b7 JB |
391 | list_add_tail(&devinfo->dev_info_list, |
392 | &devinfo_table->scsi_dev_info_list); | |
1da177e4 | 393 | else |
598fa4b7 JB |
394 | list_add(&devinfo->dev_info_list, |
395 | &devinfo_table->scsi_dev_info_list); | |
1da177e4 LT |
396 | |
397 | return 0; | |
398 | } | |
598fa4b7 | 399 | EXPORT_SYMBOL(scsi_dev_info_list_add_keyed); |
1da177e4 | 400 | |
38a039be | 401 | /** |
c42b3654 | 402 | * scsi_dev_info_list_find - find a matching dev_info list entry. |
b8018b97 HR |
403 | * @vendor: full vendor string |
404 | * @model: full model (product) string | |
38a039be PJ |
405 | * @key: specify list to use |
406 | * | |
407 | * Description: | |
c42b3654 | 408 | * Finds the first dev_info entry matching @vendor, @model |
588c902b | 409 | * in list specified by @key. |
38a039be | 410 | * |
c42b3654 | 411 | * Returns: pointer to matching entry, or ERR_PTR on failure. |
38a039be | 412 | **/ |
c42b3654 | 413 | static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor, |
4b1d8e78 | 414 | const char *model, enum scsi_devinfo_key key) |
38a039be | 415 | { |
c42b3654 | 416 | struct scsi_dev_info_list *devinfo; |
38a039be PJ |
417 | struct scsi_dev_info_list_table *devinfo_table = |
418 | scsi_devinfo_lookup_by_key(key); | |
b8018b97 | 419 | size_t vmax, mmax, mlen; |
b704f70c | 420 | const char *vskip, *mskip; |
38a039be PJ |
421 | |
422 | if (IS_ERR(devinfo_table)) | |
c42b3654 | 423 | return (struct scsi_dev_info_list *) devinfo_table; |
38a039be | 424 | |
b704f70c AS |
425 | /* Prepare for "compatible" matches */ |
426 | ||
427 | /* | |
428 | * XXX why skip leading spaces? If an odd INQUIRY | |
429 | * value, that should have been part of the | |
430 | * scsi_static_device_list[] entry, such as " FOO" | |
431 | * rather than "FOO". Since this code is already | |
432 | * here, and we don't know what device it is | |
433 | * trying to work with, leave it as-is. | |
434 | */ | |
5e7ff2ca | 435 | vmax = sizeof(devinfo->vendor); |
b704f70c AS |
436 | vskip = vendor; |
437 | while (vmax > 0 && *vskip == ' ') { | |
438 | vmax--; | |
439 | vskip++; | |
440 | } | |
441 | /* Also skip trailing spaces */ | |
442 | while (vmax > 0 && vskip[vmax - 1] == ' ') | |
443 | --vmax; | |
444 | ||
5e7ff2ca | 445 | mmax = sizeof(devinfo->model); |
b704f70c AS |
446 | mskip = model; |
447 | while (mmax > 0 && *mskip == ' ') { | |
448 | mmax--; | |
449 | mskip++; | |
450 | } | |
451 | while (mmax > 0 && mskip[mmax - 1] == ' ') | |
452 | --mmax; | |
453 | ||
38a039be PJ |
454 | list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list, |
455 | dev_info_list) { | |
456 | if (devinfo->compatible) { | |
457 | /* | |
b8018b97 | 458 | * vendor strings must be an exact match |
38a039be | 459 | */ |
ba69ead9 MW |
460 | if (vmax != strnlen(devinfo->vendor, |
461 | sizeof(devinfo->vendor)) || | |
b8018b97 | 462 | memcmp(devinfo->vendor, vskip, vmax)) |
38a039be | 463 | continue; |
b8018b97 HR |
464 | |
465 | /* | |
466 | * @model specifies the full string, and | |
467 | * must be larger or equal to devinfo->model | |
468 | */ | |
ba69ead9 | 469 | mlen = strnlen(devinfo->model, sizeof(devinfo->model)); |
b8018b97 | 470 | if (mmax < mlen || memcmp(devinfo->model, mskip, mlen)) |
38a039be | 471 | continue; |
c42b3654 | 472 | return devinfo; |
38a039be PJ |
473 | } else { |
474 | if (!memcmp(devinfo->vendor, vendor, | |
588c902b HR |
475 | sizeof(devinfo->vendor)) && |
476 | !memcmp(devinfo->model, model, | |
477 | sizeof(devinfo->model))) | |
c42b3654 | 478 | return devinfo; |
38a039be | 479 | } |
38a039be PJ |
480 | } |
481 | ||
c42b3654 AS |
482 | return ERR_PTR(-ENOENT); |
483 | } | |
484 | ||
485 | /** | |
486 | * scsi_dev_info_list_del_keyed - remove one dev_info list entry. | |
487 | * @vendor: vendor string | |
488 | * @model: model (product) string | |
489 | * @key: specify list to use | |
490 | * | |
491 | * Description: | |
492 | * Remove and destroy one dev_info entry for @vendor, @model | |
493 | * in list specified by @key. | |
494 | * | |
495 | * Returns: 0 OK, -error on failure. | |
496 | **/ | |
4b1d8e78 BVA |
497 | int scsi_dev_info_list_del_keyed(char *vendor, char *model, |
498 | enum scsi_devinfo_key key) | |
c42b3654 AS |
499 | { |
500 | struct scsi_dev_info_list *found; | |
38a039be | 501 | |
c42b3654 AS |
502 | found = scsi_dev_info_list_find(vendor, model, key); |
503 | if (IS_ERR(found)) | |
504 | return PTR_ERR(found); | |
505 | ||
506 | list_del(&found->dev_info_list); | |
507 | kfree(found); | |
508 | return 0; | |
38a039be PJ |
509 | } |
510 | EXPORT_SYMBOL(scsi_dev_info_list_del_keyed); | |
511 | ||
1da177e4 | 512 | /** |
eb44820c | 513 | * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list. |
1da177e4 LT |
514 | * @dev_list: string of device flags to add |
515 | * | |
516 | * Description: | |
588c902b HR |
517 | * Parse dev_list, and add entries to the scsi_dev_info_list. |
518 | * dev_list is of the form "vendor:product:flag,vendor:product:flag". | |
519 | * dev_list is modified via strsep. Can be called for command line | |
520 | * addition, for proc or mabye a sysfs interface. | |
1da177e4 LT |
521 | * |
522 | * Returns: 0 if OK, -error on failure. | |
523 | **/ | |
524 | static int scsi_dev_info_list_add_str(char *dev_list) | |
525 | { | |
526 | char *vendor, *model, *strflags, *next; | |
527 | char *next_check; | |
528 | int res = 0; | |
529 | ||
530 | next = dev_list; | |
531 | if (next && next[0] == '"') { | |
532 | /* | |
533 | * Ignore both the leading and trailing quote. | |
534 | */ | |
535 | next++; | |
536 | next_check = ",\""; | |
537 | } else { | |
538 | next_check = ","; | |
539 | } | |
540 | ||
541 | /* | |
542 | * For the leading and trailing '"' case, the for loop comes | |
543 | * through the last time with vendor[0] == '\0'. | |
544 | */ | |
545 | for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0') | |
546 | && (res == 0); vendor = strsep(&next, ":")) { | |
547 | strflags = NULL; | |
548 | model = strsep(&next, ":"); | |
549 | if (model) | |
550 | strflags = strsep(&next, next_check); | |
551 | if (!model || !strflags) { | |
552 | printk(KERN_ERR "%s: bad dev info string '%s' '%s'" | |
cadbd4a5 | 553 | " '%s'\n", __func__, vendor, model, |
1da177e4 LT |
554 | strflags); |
555 | res = -EINVAL; | |
556 | } else | |
557 | res = scsi_dev_info_list_add(0 /* compatible */, vendor, | |
558 | model, strflags, 0); | |
559 | } | |
560 | return res; | |
561 | } | |
562 | ||
563 | /** | |
ae6b4e69 MCC |
564 | * scsi_get_device_flags - get device specific flags from the dynamic |
565 | * device list. | |
eb44820c | 566 | * @sdev: &scsi_device to get flags for |
1da177e4 LT |
567 | * @vendor: vendor name |
568 | * @model: model name | |
569 | * | |
570 | * Description: | |
598fa4b7 JB |
571 | * Search the global scsi_dev_info_list (specified by list zero) |
572 | * for an entry matching @vendor and @model, if found, return the | |
573 | * matching flags value, else return the host or global default | |
574 | * settings. Called during scan time. | |
1da177e4 | 575 | **/ |
5ebde469 HR |
576 | blist_flags_t scsi_get_device_flags(struct scsi_device *sdev, |
577 | const unsigned char *vendor, | |
578 | const unsigned char *model) | |
598fa4b7 JB |
579 | { |
580 | return scsi_get_device_flags_keyed(sdev, vendor, model, | |
581 | SCSI_DEVINFO_GLOBAL); | |
582 | } | |
583 | ||
584 | ||
585 | /** | |
1acf3b06 | 586 | * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list |
598fa4b7 JB |
587 | * @sdev: &scsi_device to get flags for |
588 | * @vendor: vendor name | |
589 | * @model: model name | |
590 | * @key: list to look up | |
591 | * | |
592 | * Description: | |
593 | * Search the scsi_dev_info_list specified by @key for an entry | |
594 | * matching @vendor and @model, if found, return the matching | |
595 | * flags value, else return the host or global default settings. | |
596 | * Called during scan time. | |
597 | **/ | |
5ebde469 | 598 | blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev, |
598fa4b7 JB |
599 | const unsigned char *vendor, |
600 | const unsigned char *model, | |
4b1d8e78 | 601 | enum scsi_devinfo_key key) |
1da177e4 LT |
602 | { |
603 | struct scsi_dev_info_list *devinfo; | |
598fa4b7 | 604 | |
c42b3654 AS |
605 | devinfo = scsi_dev_info_list_find(vendor, model, key); |
606 | if (!IS_ERR(devinfo)) | |
607 | return devinfo->flags; | |
1da177e4 | 608 | |
a44c9d36 | 609 | /* key or device not found: return nothing */ |
598fa4b7 JB |
610 | if (key != SCSI_DEVINFO_GLOBAL) |
611 | return 0; | |
612 | ||
613 | /* except for the global list, where we have an exception */ | |
614 | if (sdev->sdev_bflags) | |
615 | return sdev->sdev_bflags; | |
616 | ||
617 | return scsi_default_dev_flags; | |
1da177e4 | 618 | } |
598fa4b7 | 619 | EXPORT_SYMBOL(scsi_get_device_flags_keyed); |
1da177e4 LT |
620 | |
621 | #ifdef CONFIG_SCSI_PROC_FS | |
598fa4b7 JB |
622 | struct double_list { |
623 | struct list_head *top; | |
624 | struct list_head *bottom; | |
625 | }; | |
626 | ||
352ced8e | 627 | static int devinfo_seq_show(struct seq_file *m, void *v) |
1da177e4 | 628 | { |
598fa4b7 JB |
629 | struct double_list *dl = v; |
630 | struct scsi_dev_info_list_table *devinfo_table = | |
631 | list_entry(dl->top, struct scsi_dev_info_list_table, node); | |
352ced8e | 632 | struct scsi_dev_info_list *devinfo = |
598fa4b7 JB |
633 | list_entry(dl->bottom, struct scsi_dev_info_list, |
634 | dev_info_list); | |
635 | ||
636 | if (devinfo_table->scsi_dev_info_list.next == dl->bottom && | |
637 | devinfo_table->name) | |
638 | seq_printf(m, "[%s]:\n", devinfo_table->name); | |
1da177e4 | 639 | |
14098803 | 640 | seq_printf(m, "'%.8s' '%.16s' 0x%llx\n", |
598fa4b7 | 641 | devinfo->vendor, devinfo->model, devinfo->flags); |
352ced8e AD |
642 | return 0; |
643 | } | |
644 | ||
598fa4b7 | 645 | static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos) |
352ced8e | 646 | { |
598fa4b7 JB |
647 | struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL); |
648 | loff_t pos = *ppos; | |
649 | ||
650 | if (!dl) | |
651 | return NULL; | |
652 | ||
653 | list_for_each(dl->top, &scsi_dev_info_list) { | |
654 | struct scsi_dev_info_list_table *devinfo_table = | |
655 | list_entry(dl->top, struct scsi_dev_info_list_table, | |
656 | node); | |
657 | list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list) | |
658 | if (pos-- == 0) | |
659 | return dl; | |
660 | } | |
661 | ||
662 | kfree(dl); | |
663 | return NULL; | |
352ced8e | 664 | } |
1da177e4 | 665 | |
598fa4b7 | 666 | static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos) |
352ced8e | 667 | { |
598fa4b7 JB |
668 | struct double_list *dl = v; |
669 | struct scsi_dev_info_list_table *devinfo_table = | |
670 | list_entry(dl->top, struct scsi_dev_info_list_table, node); | |
671 | ||
672 | ++*ppos; | |
673 | dl->bottom = dl->bottom->next; | |
674 | while (&devinfo_table->scsi_dev_info_list == dl->bottom) { | |
675 | dl->top = dl->top->next; | |
676 | if (dl->top == &scsi_dev_info_list) { | |
677 | kfree(dl); | |
678 | return NULL; | |
679 | } | |
680 | devinfo_table = list_entry(dl->top, | |
681 | struct scsi_dev_info_list_table, | |
682 | node); | |
683 | dl->bottom = devinfo_table->scsi_dev_info_list.next; | |
684 | } | |
685 | ||
686 | return dl; | |
352ced8e AD |
687 | } |
688 | ||
689 | static void devinfo_seq_stop(struct seq_file *m, void *v) | |
690 | { | |
598fa4b7 | 691 | kfree(v); |
352ced8e AD |
692 | } |
693 | ||
694 | static const struct seq_operations scsi_devinfo_seq_ops = { | |
695 | .start = devinfo_seq_start, | |
696 | .next = devinfo_seq_next, | |
697 | .stop = devinfo_seq_stop, | |
698 | .show = devinfo_seq_show, | |
699 | }; | |
700 | ||
701 | static int proc_scsi_devinfo_open(struct inode *inode, struct file *file) | |
702 | { | |
703 | return seq_open(file, &scsi_devinfo_seq_ops); | |
1da177e4 LT |
704 | } |
705 | ||
588c902b | 706 | /* |
eb44820c | 707 | * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc. |
1da177e4 | 708 | * |
eb44820c RL |
709 | * Description: Adds a black/white list entry for vendor and model with an |
710 | * integer value of flag to the scsi device info list. | |
711 | * To use, echo "vendor:model:flag" > /proc/scsi/device_info | |
1da177e4 | 712 | */ |
352ced8e AD |
713 | static ssize_t proc_scsi_devinfo_write(struct file *file, |
714 | const char __user *buf, | |
715 | size_t length, loff_t *ppos) | |
1da177e4 LT |
716 | { |
717 | char *buffer; | |
352ced8e | 718 | ssize_t err = length; |
1da177e4 LT |
719 | |
720 | if (!buf || length>PAGE_SIZE) | |
721 | return -EINVAL; | |
722 | if (!(buffer = (char *) __get_free_page(GFP_KERNEL))) | |
723 | return -ENOMEM; | |
724 | if (copy_from_user(buffer, buf, length)) { | |
725 | err =-EFAULT; | |
726 | goto out; | |
727 | } | |
728 | ||
729 | if (length < PAGE_SIZE) | |
730 | buffer[length] = '\0'; | |
731 | else if (buffer[PAGE_SIZE-1]) { | |
732 | err = -EINVAL; | |
733 | goto out; | |
734 | } | |
735 | ||
736 | scsi_dev_info_list_add_str(buffer); | |
737 | ||
738 | out: | |
739 | free_page((unsigned long)buffer); | |
740 | return err; | |
741 | } | |
352ced8e | 742 | |
97a32539 AD |
743 | static const struct proc_ops scsi_devinfo_proc_ops = { |
744 | .proc_open = proc_scsi_devinfo_open, | |
745 | .proc_read = seq_read, | |
746 | .proc_write = proc_scsi_devinfo_write, | |
747 | .proc_lseek = seq_lseek, | |
748 | .proc_release = seq_release, | |
352ced8e | 749 | }; |
1da177e4 LT |
750 | #endif /* CONFIG_SCSI_PROC_FS */ |
751 | ||
752 | module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0); | |
753 | MODULE_PARM_DESC(dev_flags, | |
754 | "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white" | |
755 | " list entries for vendor and model with an integer value of flags" | |
756 | " to the scsi device info list"); | |
757 | ||
14098803 | 758 | module_param_named(default_dev_flags, scsi_default_dev_flags, ullong, 0644); |
1da177e4 | 759 | MODULE_PARM_DESC(default_dev_flags, |
14098803 | 760 | "scsi default device flag uint64_t value"); |
1da177e4 LT |
761 | |
762 | /** | |
1acf3b06 | 763 | * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list |
1da177e4 LT |
764 | **/ |
765 | void scsi_exit_devinfo(void) | |
766 | { | |
1da177e4 LT |
767 | #ifdef CONFIG_SCSI_PROC_FS |
768 | remove_proc_entry("scsi/device_info", NULL); | |
769 | #endif | |
770 | ||
598fa4b7 JB |
771 | scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL); |
772 | } | |
773 | ||
774 | /** | |
775 | * scsi_dev_info_add_list - add a new devinfo list | |
776 | * @key: key of the list to add | |
777 | * @name: Name of the list to add (for /proc/scsi/device_info) | |
778 | * | |
779 | * Adds the requested list, returns zero on success, -EEXIST if the | |
780 | * key is already registered to a list, or other error on failure. | |
781 | */ | |
4b1d8e78 | 782 | int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name) |
598fa4b7 JB |
783 | { |
784 | struct scsi_dev_info_list_table *devinfo_table = | |
785 | scsi_devinfo_lookup_by_key(key); | |
786 | ||
787 | if (!IS_ERR(devinfo_table)) | |
788 | /* list already exists */ | |
789 | return -EEXIST; | |
790 | ||
791 | devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL); | |
792 | ||
793 | if (!devinfo_table) | |
794 | return -ENOMEM; | |
795 | ||
796 | INIT_LIST_HEAD(&devinfo_table->node); | |
797 | INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list); | |
798 | devinfo_table->name = name; | |
799 | devinfo_table->key = key; | |
800 | list_add_tail(&devinfo_table->node, &scsi_dev_info_list); | |
801 | ||
802 | return 0; | |
803 | } | |
804 | EXPORT_SYMBOL(scsi_dev_info_add_list); | |
805 | ||
806 | /** | |
807 | * scsi_dev_info_remove_list - destroy an added devinfo list | |
808 | * @key: key of the list to destroy | |
809 | * | |
810 | * Iterates over the entire list first, freeing all the values, then | |
811 | * frees the list itself. Returns 0 on success or -EINVAL if the key | |
812 | * can't be found. | |
813 | */ | |
4b1d8e78 | 814 | int scsi_dev_info_remove_list(enum scsi_devinfo_key key) |
598fa4b7 JB |
815 | { |
816 | struct list_head *lh, *lh_next; | |
817 | struct scsi_dev_info_list_table *devinfo_table = | |
818 | scsi_devinfo_lookup_by_key(key); | |
819 | ||
820 | if (IS_ERR(devinfo_table)) | |
821 | /* no such list */ | |
822 | return -EINVAL; | |
823 | ||
824 | /* remove from the master list */ | |
825 | list_del(&devinfo_table->node); | |
826 | ||
827 | list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) { | |
828 | struct scsi_dev_info_list *devinfo; | |
829 | ||
1da177e4 LT |
830 | devinfo = list_entry(lh, struct scsi_dev_info_list, |
831 | dev_info_list); | |
832 | kfree(devinfo); | |
833 | } | |
598fa4b7 JB |
834 | kfree(devinfo_table); |
835 | ||
836 | return 0; | |
1da177e4 | 837 | } |
598fa4b7 | 838 | EXPORT_SYMBOL(scsi_dev_info_remove_list); |
1da177e4 LT |
839 | |
840 | /** | |
c93ff979 | 841 | * scsi_init_devinfo - set up the dynamic device list. |
1da177e4 LT |
842 | * |
843 | * Description: | |
588c902b HR |
844 | * Add command line entries from scsi_dev_flags, then add |
845 | * scsi_static_device_list entries to the scsi device info list. | |
eb44820c | 846 | */ |
1da177e4 LT |
847 | int __init scsi_init_devinfo(void) |
848 | { | |
849 | #ifdef CONFIG_SCSI_PROC_FS | |
850 | struct proc_dir_entry *p; | |
851 | #endif | |
852 | int error, i; | |
853 | ||
598fa4b7 | 854 | error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL); |
1da177e4 LT |
855 | if (error) |
856 | return error; | |
857 | ||
598fa4b7 JB |
858 | error = scsi_dev_info_list_add_str(scsi_dev_flags); |
859 | if (error) | |
860 | goto out; | |
861 | ||
1da177e4 LT |
862 | for (i = 0; scsi_static_device_list[i].vendor; i++) { |
863 | error = scsi_dev_info_list_add(1 /* compatibile */, | |
864 | scsi_static_device_list[i].vendor, | |
865 | scsi_static_device_list[i].model, | |
866 | NULL, | |
867 | scsi_static_device_list[i].flags); | |
868 | if (error) | |
869 | goto out; | |
870 | } | |
871 | ||
872 | #ifdef CONFIG_SCSI_PROC_FS | |
97a32539 | 873 | p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_ops); |
1da177e4 LT |
874 | if (!p) { |
875 | error = -ENOMEM; | |
876 | goto out; | |
877 | } | |
1da177e4 LT |
878 | #endif /* CONFIG_SCSI_PROC_FS */ |
879 | ||
880 | out: | |
881 | if (error) | |
882 | scsi_exit_devinfo(); | |
883 | return error; | |
884 | } |