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1da177e4 LT |
1 | |
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> | |
5a0e3ad6 | 9 | #include <linux/slab.h> |
1da177e4 LT |
10 | |
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 | */ | |
20 | struct 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 | ||
598fa4b7 JB |
28 | struct 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 | ||
1da177e4 LT |
35 | |
36 | static const char spaces[] = " "; /* 16 of them */ | |
37 | static unsigned scsi_default_dev_flags; | |
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 */ | |
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 */ | |
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 */ | |
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}, | |
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}, | |
137 | {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN}, | |
138 | {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36}, | |
80dc3e06 | 139 | {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN}, |
98acfc7e | 140 | {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN}, |
1da177e4 LT |
141 | {"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 */ | |
4d7db04a JB |
146 | {"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 */ | |
1da177e4 LT |
149 | {"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}, | |
507caac7 | 154 | {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, |
1da177e4 LT |
155 | {"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 */ | |
3441afc6 | 162 | {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
1da177e4 LT |
163 | {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN}, |
164 | {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN}, | |
80b1c7bd AM |
165 | {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN}, |
166 | {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN}, | |
167 | {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN}, | |
1da177e4 LT |
168 | {"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}, | |
627511e3 TY |
172 | {"HITACHI", "DF400", "*", BLIST_REPORTLUN2}, |
173 | {"HITACHI", "DF500", "*", BLIST_REPORTLUN2}, | |
174 | {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2}, | |
175 | {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2}, | |
f70cfa9b MC |
176 | {"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
177 | {"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
178 | {"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
179 | {"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
180 | {"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
1da177e4 | 181 | {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */ |
9ba0883c | 182 | {"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */ |
1da177e4 LT |
183 | {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN}, |
184 | {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, | |
185 | {"HP", "C1557A", NULL, BLIST_FORCELUN}, | |
186 | {"HP", "C3323-300", "4269", BLIST_NOTQ}, | |
c3d83368 | 187 | {"HP", "C5713A", NULL, BLIST_NOREPORTLUN}, |
f70cfa9b MC |
188 | {"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
189 | {"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
190 | {"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
191 | {"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
192 | {"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
193 | {"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
194 | {"HP", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
195 | {"HP", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
1da177e4 LT |
196 | {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN}, |
197 | {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
198 | {"IBM", "2105", NULL, BLIST_RETRY_HWERROR}, | |
199 | {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN}, | |
200 | {"IOMEGA", "Io20S *F", NULL, BLIST_KEY}, | |
201 | {"INSITE", "Floptical F*8I", NULL, BLIST_KEY}, | |
202 | {"INSITE", "I325VM", NULL, BLIST_KEY}, | |
203 | {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, | |
204 | {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN}, | |
205 | {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
206 | {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, | |
207 | {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, | |
208 | {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN}, | |
209 | {"MegaRAID", "LD", NULL, BLIST_FORCELUN}, | |
210 | {"MICROP", "4110", NULL, BLIST_NOTQ}, | |
211 | {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2}, | |
212 | {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN}, | |
213 | {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
214 | {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
215 | {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
12427d99 | 216 | {"NEC", "iStorage", NULL, BLIST_REPORTLUN2}, |
1da177e4 LT |
217 | {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
218 | {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
219 | {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
220 | {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
221 | {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, | |
f4fd20bf | 222 | {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
e0b2e597 | 223 | {"Promise", "", NULL, BLIST_SPARSELUN}, |
2ffb45c6 | 224 | {"QUANTUM", "XP34301", "1071", BLIST_NOTQ}, |
1da177e4 LT |
225 | {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN}, |
226 | {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN}, | |
227 | {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */ | |
228 | {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ}, | |
229 | {"SGI", "RAID3", "*", BLIST_SPARSELUN}, | |
230 | {"SGI", "RAID5", "*", BLIST_SPARSELUN}, | |
231 | {"SGI", "TP9100", "*", BLIST_REPORTLUN2}, | |
232 | {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, | |
48690405 | 233 | {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
debf4777 | 234 | {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
4aa312b9 | 235 | {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
1da177e4 LT |
236 | {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36}, |
237 | {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN}, | |
238 | {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */ | |
239 | {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR}, | |
240 | {"SUN", "T300", "*", BLIST_SPARSELUN}, | |
241 | {"SUN", "T4", "*", BLIST_SPARSELUN}, | |
242 | {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN}, | |
5f619c5b | 243 | {"Tornado-", "F4", "*", BLIST_NOREPORTLUN}, |
1da177e4 LT |
244 | {"TOSHIBA", "CDROM", NULL, BLIST_ISROM}, |
245 | {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM}, | |
246 | {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36}, | |
247 | {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN}, | |
248 | {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN}, | |
249 | {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN}, | |
250 | {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN}, | |
251 | {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, | |
252 | {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN}, | |
253 | {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN}, | |
254 | { NULL, NULL, NULL, 0 }, | |
255 | }; | |
256 | ||
598fa4b7 JB |
257 | static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key) |
258 | { | |
259 | struct scsi_dev_info_list_table *devinfo_table; | |
260 | int found = 0; | |
261 | ||
262 | list_for_each_entry(devinfo_table, &scsi_dev_info_list, node) | |
263 | if (devinfo_table->key == key) { | |
264 | found = 1; | |
265 | break; | |
266 | } | |
267 | if (!found) | |
268 | return ERR_PTR(-EINVAL); | |
269 | ||
270 | return devinfo_table; | |
271 | } | |
272 | ||
1da177e4 LT |
273 | /* |
274 | * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into | |
275 | * devinfo vendor and model strings. | |
276 | */ | |
277 | static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length, | |
278 | char *from, int compatible) | |
279 | { | |
280 | size_t from_length; | |
281 | ||
282 | from_length = strlen(from); | |
283 | strncpy(to, from, min(to_length, from_length)); | |
284 | if (from_length < to_length) { | |
285 | if (compatible) { | |
286 | /* | |
287 | * NUL terminate the string if it is short. | |
288 | */ | |
289 | to[from_length] = '\0'; | |
290 | } else { | |
291 | /* | |
292 | * space pad the string if it is short. | |
293 | */ | |
294 | strncpy(&to[from_length], spaces, | |
295 | to_length - from_length); | |
296 | } | |
297 | } | |
298 | if (from_length > to_length) | |
299 | printk(KERN_WARNING "%s: %s string '%s' is too long\n", | |
cadbd4a5 | 300 | __func__, name, from); |
1da177e4 LT |
301 | } |
302 | ||
303 | /** | |
eb44820c RL |
304 | * scsi_dev_info_list_add - add one dev_info list entry. |
305 | * @compatible: if true, null terminate short strings. Otherwise space pad. | |
1da177e4 LT |
306 | * @vendor: vendor string |
307 | * @model: model (product) string | |
308 | * @strflags: integer string | |
eb44820c | 309 | * @flags: if strflags NULL, use this flag value |
1da177e4 LT |
310 | * |
311 | * Description: | |
312 | * Create and add one dev_info entry for @vendor, @model, @strflags or | |
313 | * @flag. If @compatible, add to the tail of the list, do not space | |
314 | * pad, and set devinfo->compatible. The scsi_static_device_list entries | |
315 | * are added with @compatible 1 and @clfags NULL. | |
316 | * | |
317 | * Returns: 0 OK, -error on failure. | |
318 | **/ | |
319 | static int scsi_dev_info_list_add(int compatible, char *vendor, char *model, | |
320 | char *strflags, int flags) | |
598fa4b7 JB |
321 | { |
322 | return scsi_dev_info_list_add_keyed(compatible, vendor, model, | |
323 | strflags, flags, | |
324 | SCSI_DEVINFO_GLOBAL); | |
325 | } | |
326 | ||
327 | /** | |
328 | * scsi_dev_info_list_add_keyed - add one dev_info list entry. | |
329 | * @compatible: if true, null terminate short strings. Otherwise space pad. | |
330 | * @vendor: vendor string | |
331 | * @model: model (product) string | |
332 | * @strflags: integer string | |
333 | * @flags: if strflags NULL, use this flag value | |
334 | * @key: specify list to use | |
335 | * | |
336 | * Description: | |
337 | * Create and add one dev_info entry for @vendor, @model, | |
338 | * @strflags or @flag in list specified by @key. If @compatible, | |
339 | * add to the tail of the list, do not space pad, and set | |
340 | * devinfo->compatible. The scsi_static_device_list entries are | |
341 | * added with @compatible 1 and @clfags NULL. | |
342 | * | |
343 | * Returns: 0 OK, -error on failure. | |
344 | **/ | |
345 | int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model, | |
346 | char *strflags, int flags, int key) | |
1da177e4 LT |
347 | { |
348 | struct scsi_dev_info_list *devinfo; | |
598fa4b7 JB |
349 | struct scsi_dev_info_list_table *devinfo_table = |
350 | scsi_devinfo_lookup_by_key(key); | |
351 | ||
352 | if (IS_ERR(devinfo_table)) | |
353 | return PTR_ERR(devinfo_table); | |
1da177e4 LT |
354 | |
355 | devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL); | |
356 | if (!devinfo) { | |
cadbd4a5 | 357 | printk(KERN_ERR "%s: no memory\n", __func__); |
1da177e4 LT |
358 | return -ENOMEM; |
359 | } | |
360 | ||
361 | scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor), | |
362 | vendor, compatible); | |
363 | scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model), | |
364 | model, compatible); | |
365 | ||
366 | if (strflags) | |
367 | devinfo->flags = simple_strtoul(strflags, NULL, 0); | |
368 | else | |
369 | devinfo->flags = flags; | |
370 | ||
371 | devinfo->compatible = compatible; | |
372 | ||
373 | if (compatible) | |
598fa4b7 JB |
374 | list_add_tail(&devinfo->dev_info_list, |
375 | &devinfo_table->scsi_dev_info_list); | |
1da177e4 | 376 | else |
598fa4b7 JB |
377 | list_add(&devinfo->dev_info_list, |
378 | &devinfo_table->scsi_dev_info_list); | |
1da177e4 LT |
379 | |
380 | return 0; | |
381 | } | |
598fa4b7 | 382 | EXPORT_SYMBOL(scsi_dev_info_list_add_keyed); |
1da177e4 LT |
383 | |
384 | /** | |
eb44820c | 385 | * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list. |
1da177e4 LT |
386 | * @dev_list: string of device flags to add |
387 | * | |
388 | * Description: | |
389 | * Parse dev_list, and add entries to the scsi_dev_info_list. | |
390 | * dev_list is of the form "vendor:product:flag,vendor:product:flag". | |
391 | * dev_list is modified via strsep. Can be called for command line | |
392 | * addition, for proc or mabye a sysfs interface. | |
393 | * | |
394 | * Returns: 0 if OK, -error on failure. | |
395 | **/ | |
396 | static int scsi_dev_info_list_add_str(char *dev_list) | |
397 | { | |
398 | char *vendor, *model, *strflags, *next; | |
399 | char *next_check; | |
400 | int res = 0; | |
401 | ||
402 | next = dev_list; | |
403 | if (next && next[0] == '"') { | |
404 | /* | |
405 | * Ignore both the leading and trailing quote. | |
406 | */ | |
407 | next++; | |
408 | next_check = ",\""; | |
409 | } else { | |
410 | next_check = ","; | |
411 | } | |
412 | ||
413 | /* | |
414 | * For the leading and trailing '"' case, the for loop comes | |
415 | * through the last time with vendor[0] == '\0'. | |
416 | */ | |
417 | for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0') | |
418 | && (res == 0); vendor = strsep(&next, ":")) { | |
419 | strflags = NULL; | |
420 | model = strsep(&next, ":"); | |
421 | if (model) | |
422 | strflags = strsep(&next, next_check); | |
423 | if (!model || !strflags) { | |
424 | printk(KERN_ERR "%s: bad dev info string '%s' '%s'" | |
cadbd4a5 | 425 | " '%s'\n", __func__, vendor, model, |
1da177e4 LT |
426 | strflags); |
427 | res = -EINVAL; | |
428 | } else | |
429 | res = scsi_dev_info_list_add(0 /* compatible */, vendor, | |
430 | model, strflags, 0); | |
431 | } | |
432 | return res; | |
433 | } | |
434 | ||
435 | /** | |
eb44820c RL |
436 | * get_device_flags - get device specific flags from the dynamic device list. |
437 | * @sdev: &scsi_device to get flags for | |
1da177e4 LT |
438 | * @vendor: vendor name |
439 | * @model: model name | |
440 | * | |
441 | * Description: | |
598fa4b7 JB |
442 | * Search the global scsi_dev_info_list (specified by list zero) |
443 | * for an entry matching @vendor and @model, if found, return the | |
444 | * matching flags value, else return the host or global default | |
445 | * settings. Called during scan time. | |
1da177e4 | 446 | **/ |
7f23e146 JB |
447 | int scsi_get_device_flags(struct scsi_device *sdev, |
448 | const unsigned char *vendor, | |
449 | const unsigned char *model) | |
598fa4b7 JB |
450 | { |
451 | return scsi_get_device_flags_keyed(sdev, vendor, model, | |
452 | SCSI_DEVINFO_GLOBAL); | |
453 | } | |
454 | ||
455 | ||
456 | /** | |
1acf3b06 | 457 | * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list |
598fa4b7 JB |
458 | * @sdev: &scsi_device to get flags for |
459 | * @vendor: vendor name | |
460 | * @model: model name | |
461 | * @key: list to look up | |
462 | * | |
463 | * Description: | |
464 | * Search the scsi_dev_info_list specified by @key for an entry | |
465 | * matching @vendor and @model, if found, return the matching | |
466 | * flags value, else return the host or global default settings. | |
467 | * Called during scan time. | |
468 | **/ | |
469 | int scsi_get_device_flags_keyed(struct scsi_device *sdev, | |
470 | const unsigned char *vendor, | |
471 | const unsigned char *model, | |
472 | int key) | |
1da177e4 LT |
473 | { |
474 | struct scsi_dev_info_list *devinfo; | |
598fa4b7 JB |
475 | struct scsi_dev_info_list_table *devinfo_table; |
476 | ||
477 | devinfo_table = scsi_devinfo_lookup_by_key(key); | |
1da177e4 | 478 | |
598fa4b7 JB |
479 | if (IS_ERR(devinfo_table)) |
480 | return PTR_ERR(devinfo_table); | |
1da177e4 | 481 | |
598fa4b7 JB |
482 | list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list, |
483 | dev_info_list) { | |
1da177e4 LT |
484 | if (devinfo->compatible) { |
485 | /* | |
486 | * Behave like the older version of get_device_flags. | |
487 | */ | |
488 | size_t max; | |
489 | /* | |
490 | * XXX why skip leading spaces? If an odd INQUIRY | |
491 | * value, that should have been part of the | |
492 | * scsi_static_device_list[] entry, such as " FOO" | |
493 | * rather than "FOO". Since this code is already | |
494 | * here, and we don't know what device it is | |
495 | * trying to work with, leave it as-is. | |
496 | */ | |
497 | max = 8; /* max length of vendor */ | |
498 | while ((max > 0) && *vendor == ' ') { | |
499 | max--; | |
500 | vendor++; | |
501 | } | |
502 | /* | |
503 | * XXX removing the following strlen() would be | |
504 | * good, using it means that for a an entry not in | |
505 | * the list, we scan every byte of every vendor | |
506 | * listed in scsi_static_device_list[], and never match | |
507 | * a single one (and still have to compare at | |
508 | * least the first byte of each vendor). | |
509 | */ | |
510 | if (memcmp(devinfo->vendor, vendor, | |
511 | min(max, strlen(devinfo->vendor)))) | |
512 | continue; | |
513 | /* | |
514 | * Skip spaces again. | |
515 | */ | |
516 | max = 16; /* max length of model */ | |
517 | while ((max > 0) && *model == ' ') { | |
518 | max--; | |
519 | model++; | |
520 | } | |
521 | if (memcmp(devinfo->model, model, | |
522 | min(max, strlen(devinfo->model)))) | |
523 | continue; | |
524 | return devinfo->flags; | |
525 | } else { | |
526 | if (!memcmp(devinfo->vendor, vendor, | |
527 | sizeof(devinfo->vendor)) && | |
528 | !memcmp(devinfo->model, model, | |
529 | sizeof(devinfo->model))) | |
530 | return devinfo->flags; | |
531 | } | |
532 | } | |
598fa4b7 JB |
533 | /* nothing found, return nothing */ |
534 | if (key != SCSI_DEVINFO_GLOBAL) | |
535 | return 0; | |
536 | ||
537 | /* except for the global list, where we have an exception */ | |
538 | if (sdev->sdev_bflags) | |
539 | return sdev->sdev_bflags; | |
540 | ||
541 | return scsi_default_dev_flags; | |
1da177e4 | 542 | } |
598fa4b7 | 543 | EXPORT_SYMBOL(scsi_get_device_flags_keyed); |
1da177e4 LT |
544 | |
545 | #ifdef CONFIG_SCSI_PROC_FS | |
598fa4b7 JB |
546 | struct double_list { |
547 | struct list_head *top; | |
548 | struct list_head *bottom; | |
549 | }; | |
550 | ||
352ced8e | 551 | static int devinfo_seq_show(struct seq_file *m, void *v) |
1da177e4 | 552 | { |
598fa4b7 JB |
553 | struct double_list *dl = v; |
554 | struct scsi_dev_info_list_table *devinfo_table = | |
555 | list_entry(dl->top, struct scsi_dev_info_list_table, node); | |
352ced8e | 556 | struct scsi_dev_info_list *devinfo = |
598fa4b7 JB |
557 | list_entry(dl->bottom, struct scsi_dev_info_list, |
558 | dev_info_list); | |
559 | ||
560 | if (devinfo_table->scsi_dev_info_list.next == dl->bottom && | |
561 | devinfo_table->name) | |
562 | seq_printf(m, "[%s]:\n", devinfo_table->name); | |
1da177e4 | 563 | |
352ced8e | 564 | seq_printf(m, "'%.8s' '%.16s' 0x%x\n", |
598fa4b7 | 565 | devinfo->vendor, devinfo->model, devinfo->flags); |
352ced8e AD |
566 | return 0; |
567 | } | |
568 | ||
598fa4b7 | 569 | static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos) |
352ced8e | 570 | { |
598fa4b7 JB |
571 | struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL); |
572 | loff_t pos = *ppos; | |
573 | ||
574 | if (!dl) | |
575 | return NULL; | |
576 | ||
577 | list_for_each(dl->top, &scsi_dev_info_list) { | |
578 | struct scsi_dev_info_list_table *devinfo_table = | |
579 | list_entry(dl->top, struct scsi_dev_info_list_table, | |
580 | node); | |
581 | list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list) | |
582 | if (pos-- == 0) | |
583 | return dl; | |
584 | } | |
585 | ||
586 | kfree(dl); | |
587 | return NULL; | |
352ced8e | 588 | } |
1da177e4 | 589 | |
598fa4b7 | 590 | static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos) |
352ced8e | 591 | { |
598fa4b7 JB |
592 | struct double_list *dl = v; |
593 | struct scsi_dev_info_list_table *devinfo_table = | |
594 | list_entry(dl->top, struct scsi_dev_info_list_table, node); | |
595 | ||
596 | ++*ppos; | |
597 | dl->bottom = dl->bottom->next; | |
598 | while (&devinfo_table->scsi_dev_info_list == dl->bottom) { | |
599 | dl->top = dl->top->next; | |
600 | if (dl->top == &scsi_dev_info_list) { | |
601 | kfree(dl); | |
602 | return NULL; | |
603 | } | |
604 | devinfo_table = list_entry(dl->top, | |
605 | struct scsi_dev_info_list_table, | |
606 | node); | |
607 | dl->bottom = devinfo_table->scsi_dev_info_list.next; | |
608 | } | |
609 | ||
610 | return dl; | |
352ced8e AD |
611 | } |
612 | ||
613 | static void devinfo_seq_stop(struct seq_file *m, void *v) | |
614 | { | |
598fa4b7 | 615 | kfree(v); |
352ced8e AD |
616 | } |
617 | ||
618 | static const struct seq_operations scsi_devinfo_seq_ops = { | |
619 | .start = devinfo_seq_start, | |
620 | .next = devinfo_seq_next, | |
621 | .stop = devinfo_seq_stop, | |
622 | .show = devinfo_seq_show, | |
623 | }; | |
624 | ||
625 | static int proc_scsi_devinfo_open(struct inode *inode, struct file *file) | |
626 | { | |
627 | return seq_open(file, &scsi_devinfo_seq_ops); | |
1da177e4 LT |
628 | } |
629 | ||
630 | /* | |
eb44820c | 631 | * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc. |
1da177e4 | 632 | * |
eb44820c RL |
633 | * Description: Adds a black/white list entry for vendor and model with an |
634 | * integer value of flag to the scsi device info list. | |
635 | * To use, echo "vendor:model:flag" > /proc/scsi/device_info | |
1da177e4 | 636 | */ |
352ced8e AD |
637 | static ssize_t proc_scsi_devinfo_write(struct file *file, |
638 | const char __user *buf, | |
639 | size_t length, loff_t *ppos) | |
1da177e4 LT |
640 | { |
641 | char *buffer; | |
352ced8e | 642 | ssize_t err = length; |
1da177e4 LT |
643 | |
644 | if (!buf || length>PAGE_SIZE) | |
645 | return -EINVAL; | |
646 | if (!(buffer = (char *) __get_free_page(GFP_KERNEL))) | |
647 | return -ENOMEM; | |
648 | if (copy_from_user(buffer, buf, length)) { | |
649 | err =-EFAULT; | |
650 | goto out; | |
651 | } | |
652 | ||
653 | if (length < PAGE_SIZE) | |
654 | buffer[length] = '\0'; | |
655 | else if (buffer[PAGE_SIZE-1]) { | |
656 | err = -EINVAL; | |
657 | goto out; | |
658 | } | |
659 | ||
660 | scsi_dev_info_list_add_str(buffer); | |
661 | ||
662 | out: | |
663 | free_page((unsigned long)buffer); | |
664 | return err; | |
665 | } | |
352ced8e AD |
666 | |
667 | static const struct file_operations scsi_devinfo_proc_fops = { | |
668 | .owner = THIS_MODULE, | |
669 | .open = proc_scsi_devinfo_open, | |
670 | .read = seq_read, | |
671 | .write = proc_scsi_devinfo_write, | |
672 | .llseek = seq_lseek, | |
673 | .release = seq_release, | |
674 | }; | |
1da177e4 LT |
675 | #endif /* CONFIG_SCSI_PROC_FS */ |
676 | ||
677 | module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0); | |
678 | MODULE_PARM_DESC(dev_flags, | |
679 | "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white" | |
680 | " list entries for vendor and model with an integer value of flags" | |
681 | " to the scsi device info list"); | |
682 | ||
683 | module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR); | |
684 | MODULE_PARM_DESC(default_dev_flags, | |
685 | "scsi default device flag integer value"); | |
686 | ||
687 | /** | |
1acf3b06 | 688 | * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list |
1da177e4 LT |
689 | **/ |
690 | void scsi_exit_devinfo(void) | |
691 | { | |
1da177e4 LT |
692 | #ifdef CONFIG_SCSI_PROC_FS |
693 | remove_proc_entry("scsi/device_info", NULL); | |
694 | #endif | |
695 | ||
598fa4b7 JB |
696 | scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL); |
697 | } | |
698 | ||
699 | /** | |
700 | * scsi_dev_info_add_list - add a new devinfo list | |
701 | * @key: key of the list to add | |
702 | * @name: Name of the list to add (for /proc/scsi/device_info) | |
703 | * | |
704 | * Adds the requested list, returns zero on success, -EEXIST if the | |
705 | * key is already registered to a list, or other error on failure. | |
706 | */ | |
707 | int scsi_dev_info_add_list(int key, const char *name) | |
708 | { | |
709 | struct scsi_dev_info_list_table *devinfo_table = | |
710 | scsi_devinfo_lookup_by_key(key); | |
711 | ||
712 | if (!IS_ERR(devinfo_table)) | |
713 | /* list already exists */ | |
714 | return -EEXIST; | |
715 | ||
716 | devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL); | |
717 | ||
718 | if (!devinfo_table) | |
719 | return -ENOMEM; | |
720 | ||
721 | INIT_LIST_HEAD(&devinfo_table->node); | |
722 | INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list); | |
723 | devinfo_table->name = name; | |
724 | devinfo_table->key = key; | |
725 | list_add_tail(&devinfo_table->node, &scsi_dev_info_list); | |
726 | ||
727 | return 0; | |
728 | } | |
729 | EXPORT_SYMBOL(scsi_dev_info_add_list); | |
730 | ||
731 | /** | |
732 | * scsi_dev_info_remove_list - destroy an added devinfo list | |
733 | * @key: key of the list to destroy | |
734 | * | |
735 | * Iterates over the entire list first, freeing all the values, then | |
736 | * frees the list itself. Returns 0 on success or -EINVAL if the key | |
737 | * can't be found. | |
738 | */ | |
739 | int scsi_dev_info_remove_list(int key) | |
740 | { | |
741 | struct list_head *lh, *lh_next; | |
742 | struct scsi_dev_info_list_table *devinfo_table = | |
743 | scsi_devinfo_lookup_by_key(key); | |
744 | ||
745 | if (IS_ERR(devinfo_table)) | |
746 | /* no such list */ | |
747 | return -EINVAL; | |
748 | ||
749 | /* remove from the master list */ | |
750 | list_del(&devinfo_table->node); | |
751 | ||
752 | list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) { | |
753 | struct scsi_dev_info_list *devinfo; | |
754 | ||
1da177e4 LT |
755 | devinfo = list_entry(lh, struct scsi_dev_info_list, |
756 | dev_info_list); | |
757 | kfree(devinfo); | |
758 | } | |
598fa4b7 JB |
759 | kfree(devinfo_table); |
760 | ||
761 | return 0; | |
1da177e4 | 762 | } |
598fa4b7 | 763 | EXPORT_SYMBOL(scsi_dev_info_remove_list); |
1da177e4 LT |
764 | |
765 | /** | |
c93ff979 | 766 | * scsi_init_devinfo - set up the dynamic device list. |
1da177e4 LT |
767 | * |
768 | * Description: | |
eb44820c | 769 | * Add command line entries from scsi_dev_flags, then add |
1da177e4 | 770 | * scsi_static_device_list entries to the scsi device info list. |
eb44820c | 771 | */ |
1da177e4 LT |
772 | int __init scsi_init_devinfo(void) |
773 | { | |
774 | #ifdef CONFIG_SCSI_PROC_FS | |
775 | struct proc_dir_entry *p; | |
776 | #endif | |
777 | int error, i; | |
778 | ||
598fa4b7 | 779 | error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL); |
1da177e4 LT |
780 | if (error) |
781 | return error; | |
782 | ||
598fa4b7 JB |
783 | error = scsi_dev_info_list_add_str(scsi_dev_flags); |
784 | if (error) | |
785 | goto out; | |
786 | ||
1da177e4 LT |
787 | for (i = 0; scsi_static_device_list[i].vendor; i++) { |
788 | error = scsi_dev_info_list_add(1 /* compatibile */, | |
789 | scsi_static_device_list[i].vendor, | |
790 | scsi_static_device_list[i].model, | |
791 | NULL, | |
792 | scsi_static_device_list[i].flags); | |
793 | if (error) | |
794 | goto out; | |
795 | } | |
796 | ||
797 | #ifdef CONFIG_SCSI_PROC_FS | |
352ced8e | 798 | p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops); |
1da177e4 LT |
799 | if (!p) { |
800 | error = -ENOMEM; | |
801 | goto out; | |
802 | } | |
1da177e4 LT |
803 | #endif /* CONFIG_SCSI_PROC_FS */ |
804 | ||
805 | out: | |
806 | if (error) | |
807 | scsi_exit_devinfo(); | |
808 | return error; | |
809 | } |