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>
10 #include <scsi/scsi_device.h>
11 #include <scsi/scsi_devinfo.h>
13 #include "scsi_priv.h"
17 * scsi_dev_info_list: structure to hold black/white listed devices.
19 struct scsi_dev_info_list
{
20 struct list_head dev_info_list
;
24 unsigned compatible
; /* for use with scsi_static_device_list entries */
27 struct scsi_dev_info_list_table
{
28 struct list_head node
; /* our node for being on the master list */
29 struct list_head scsi_dev_info_list
; /* head of dev info list */
30 const char *name
; /* name of list for /proc (NULL for global) */
31 int key
; /* unique numeric identifier */
35 static const char spaces
[] = " "; /* 16 of them */
36 static unsigned scsi_default_dev_flags
;
37 static LIST_HEAD(scsi_dev_info_list
);
38 static char scsi_dev_flags
[256];
41 * scsi_static_device_list: deprecated list of devices that require
42 * settings that differ from the default, includes black-listed (broken)
43 * devices. The entries here are added to the tail of scsi_dev_info_list
44 * via scsi_dev_info_list_init.
46 * Do not add to this list, use the command line or proc interface to add
47 * to the scsi_dev_info_list. This table will eventually go away.
52 char *revision
; /* revision known to be bad, unused */
54 } scsi_static_device_list
[] __initdata
= {
56 * The following devices are known not to tolerate a lun != 0 scan
57 * for one reason or another. Some will respond to all luns,
58 * others will lock up.
60 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN
}, /* locks up */
61 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN
}, /* locks up */
62 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN
}, /* locks up */
63 {"DENON", "DRD-25X", "V", BLIST_NOLUN
}, /* locks up */
64 {"HITACHI", "DK312C", "CM81", BLIST_NOLUN
}, /* responds to all lun */
65 {"HITACHI", "DK314C", "CR21", BLIST_NOLUN
}, /* responds to all lun */
66 {"IBM", "2104-DU3", NULL
, BLIST_NOLUN
}, /* locks up */
67 {"IBM", "2104-TU3", NULL
, BLIST_NOLUN
}, /* locks up */
68 {"IMS", "CDD521/10", "2.06", BLIST_NOLUN
}, /* locks up */
69 {"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN
}, /* locks up */
70 {"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN
}, /* locks up */
71 {"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN
}, /* locks up */
72 {"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN
}, /* locks up */
73 {"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN
}, /* locks up */
74 {"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN
}, /* responds to all lun */
75 {"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN
}, /* responds to all lun */
76 {"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN
},/* locks up */
77 {"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN
}, /* responds to all lun */
78 {"RODIME", "RO3000S", "2.33", BLIST_NOLUN
}, /* locks up */
79 {"SUN", "SENA", NULL
, BLIST_NOLUN
}, /* responds to all luns */
81 * The following causes a failed REQUEST SENSE on lun 1 for
82 * aha152x controller, which causes SCSI code to reset bus.
84 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN
},
86 * The following causes a failed REQUEST SENSE on lun 1 for
87 * aha152x controller, which causes SCSI code to reset bus.
89 {"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN
},
90 {"SEAGATE", "ST296", "921", BLIST_NOLUN
}, /* responds to all lun */
91 {"SEAGATE", "ST1581", "6538", BLIST_NOLUN
}, /* responds to all lun */
92 {"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN
},
93 {"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN
},
94 {"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN
},
95 {"SONY", "CD-ROM CDU-8012", NULL
, BLIST_NOLUN
},
96 {"SONY", "SDT-5000", "3.17", BLIST_SELECT_NO_ATN
},
97 {"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN
}, /* locks up */
98 {"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN
}, /* locks up */
100 * The following causes a failed REQUEST SENSE on lun 1 for
101 * seagate controller, which causes SCSI code to reset bus.
103 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN
},
104 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN
}, /* responds to all lun */
106 * The following causes a failed REQUEST SENSE on lun 1 for
107 * seagate controller, which causes SCSI code to reset bus.
109 {"HP", "C1750A", "3226", BLIST_NOLUN
}, /* scanjet iic */
110 {"HP", "C1790A", "", BLIST_NOLUN
}, /* scanjet iip */
111 {"HP", "C2500A", "", BLIST_NOLUN
}, /* scanjet iicx */
112 {"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN
}, /* locks up */
113 {"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN
}, /* responds to all lun */
114 {"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN
}, /* locks up */
115 {"NEC", "D3856", "0009", BLIST_NOLUN
},
116 {"QUANTUM", "LPS525S", "3110", BLIST_NOLUN
}, /* locks up */
117 {"QUANTUM", "PD1225S", "3110", BLIST_NOLUN
}, /* locks up */
118 {"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN
}, /* locks up */
119 {"RELISYS", "Scorpio", NULL
, BLIST_NOLUN
}, /* responds to all lun */
120 {"SANKYO", "CP525", "6.64", BLIST_NOLUN
}, /* causes failed REQ SENSE, extra reset */
121 {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN
},
122 {"transtec", "T5008", "0001", BLIST_NOREPORTLUN
},
123 {"YAMAHA", "CDR100", "1.00", BLIST_NOLUN
}, /* locks up */
124 {"YAMAHA", "CDR102", "1.00", BLIST_NOLUN
}, /* locks up */
125 {"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN
}, /* locks up */
126 {"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN
}, /* locks up */
127 {"", "Scanner", "1.80", BLIST_NOLUN
}, /* responds to all lun */
130 * Other types of devices that have special flags.
131 * Note that all USB devices should have the BLIST_INQUIRY_36 flag.
133 {"3PARdata", "VV", NULL
, BLIST_REPORTLUN2
},
134 {"ADAPTEC", "AACRAID", NULL
, BLIST_FORCELUN
},
135 {"ADAPTEC", "Adaptec 5400S", NULL
, BLIST_FORCELUN
},
136 {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN
},
137 {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN
| BLIST_INQUIRY_36
},
138 {"BROWNIE", "1200U3P", NULL
, BLIST_NOREPORTLUN
},
139 {"BROWNIE", "1600U3P", NULL
, BLIST_NOREPORTLUN
},
140 {"CANON", "IPUBJD", NULL
, BLIST_SPARSELUN
},
141 {"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN
| BLIST_INQUIRY_36
},
142 {"CMD", "CRA-7280", NULL
, BLIST_SPARSELUN
}, /* CMD RAID Controller */
143 {"CNSI", "G7324", NULL
, BLIST_SPARSELUN
}, /* Chaparral G7324 RAID */
144 {"CNSi", "G8324", NULL
, BLIST_SPARSELUN
}, /* Chaparral G8324 RAID */
145 {"COMPAQ", "ARRAY CONTROLLER", NULL
, BLIST_SPARSELUN
| BLIST_LARGELUN
|
146 BLIST_MAX_512
| BLIST_REPORTLUN2
}, /* Compaq RA4x00 */
147 {"COMPAQ", "LOGICAL VOLUME", NULL
, BLIST_FORCELUN
| BLIST_MAX_512
}, /* Compaq RA4x00 */
148 {"COMPAQ", "CR3500", NULL
, BLIST_FORCELUN
},
149 {"COMPAQ", "MSA1000", NULL
, BLIST_SPARSELUN
| BLIST_NOSTARTONADD
},
150 {"COMPAQ", "MSA1000 VOLUME", NULL
, BLIST_SPARSELUN
| BLIST_NOSTARTONADD
},
151 {"COMPAQ", "HSV110", NULL
, BLIST_REPORTLUN2
| BLIST_NOSTARTONADD
},
152 {"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN
},
153 {"DEC", "HSG80", NULL
, BLIST_REPORTLUN2
| BLIST_NOSTARTONADD
},
154 {"DELL", "PV660F", NULL
, BLIST_SPARSELUN
},
155 {"DELL", "PV660F PSEUDO", NULL
, BLIST_SPARSELUN
},
156 {"DELL", "PSEUDO DEVICE .", NULL
, BLIST_SPARSELUN
}, /* Dell PV 530F */
157 {"DELL", "PV530F", NULL
, BLIST_SPARSELUN
},
158 {"DELL", "PERCRAID", NULL
, BLIST_FORCELUN
},
159 {"DGC", "RAID", NULL
, BLIST_SPARSELUN
}, /* Dell PV 650F, storage on LUN 0 */
160 {"DGC", "DISK", NULL
, BLIST_SPARSELUN
}, /* Dell PV 650F, no storage on LUN 0 */
161 {"EMC", "Invista", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
162 {"EMC", "SYMMETRIX", NULL
, BLIST_SPARSELUN
| BLIST_LARGELUN
| BLIST_FORCELUN
},
163 {"EMULEX", "MD21/S2 ESDI", NULL
, BLIST_SINGLELUN
},
164 {"easyRAID", "16P", NULL
, BLIST_NOREPORTLUN
},
165 {"easyRAID", "X6P", NULL
, BLIST_NOREPORTLUN
},
166 {"easyRAID", "F8", NULL
, BLIST_NOREPORTLUN
},
167 {"FSC", "CentricStor", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
168 {"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN
| BLIST_INQUIRY_36
},
169 {"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN
| BLIST_INQUIRY_36
},
170 {"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN
| BLIST_INQUIRY_36
},
171 {"HITACHI", "DF400", "*", BLIST_REPORTLUN2
},
172 {"HITACHI", "DF500", "*", BLIST_REPORTLUN2
},
173 {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2
},
174 {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2
},
175 {"HITACHI", "OP-C-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
176 {"HITACHI", "3380-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
177 {"HITACHI", "3390-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
178 {"HITACHI", "6586-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
179 {"HITACHI", "6588-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
180 {"HP", "A6189A", NULL
, BLIST_SPARSELUN
| BLIST_LARGELUN
}, /* HP VA7400 */
181 {"HP", "OPEN-", "*", BLIST_REPORTLUN2
}, /* HP XP Arrays */
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
},
186 {"HP", "C5713A", NULL
, BLIST_NOREPORTLUN
},
187 {"HP", "DF400", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
188 {"HP", "DF500", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
189 {"HP", "DF600", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
190 {"HP", "OP-C-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
191 {"HP", "3380-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
192 {"HP", "3390-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
193 {"HP", "6586-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
194 {"HP", "6588-", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
195 {"IBM", "AuSaV1S2", NULL
, BLIST_FORCELUN
},
196 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
197 {"IBM", "2105", NULL
, BLIST_RETRY_HWERROR
},
198 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ
| BLIST_NOLUN
},
199 {"IOMEGA", "ZIP", NULL
, 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
},
216 {"NEC", "iStorage", NULL
, BLIST_REPORTLUN2
},
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
},
222 {"PIONEER", "CD-ROM DRM-624X", NULL
, BLIST_FORCELUN
| BLIST_SINGLELUN
},
223 {"Promise", "", NULL
, BLIST_SPARSELUN
},
224 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ
},
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
},
233 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH
},
234 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH
},
235 {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH
},
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
},
243 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN
},
244 {"TOSHIBA", "CDROM", NULL
, BLIST_ISROM
},
245 {"TOSHIBA", "CD-ROM", NULL
, BLIST_ISROM
},
246 {"Traxdata", "CDR4120", NULL
, BLIST_NOLUN
}, /* locks up */
247 {"USB2.0", "SMARTMEDIA/XD", NULL
, BLIST_FORCELUN
| BLIST_INQUIRY_36
},
248 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN
},
249 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN
},
250 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN
},
251 {"WDC WD25", "00JB-00FUA0", NULL
, BLIST_NOREPORTLUN
},
252 {"XYRATEX", "RS", "*", BLIST_SPARSELUN
| BLIST_LARGELUN
},
253 {"Zzyzx", "RocketStor 500S", NULL
, BLIST_SPARSELUN
},
254 {"Zzyzx", "RocketStor 2000", NULL
, BLIST_SPARSELUN
},
255 { NULL
, NULL
, NULL
, 0 },
258 static struct scsi_dev_info_list_table
*scsi_devinfo_lookup_by_key(int key
)
260 struct scsi_dev_info_list_table
*devinfo_table
;
263 list_for_each_entry(devinfo_table
, &scsi_dev_info_list
, node
)
264 if (devinfo_table
->key
== key
) {
269 return ERR_PTR(-EINVAL
);
271 return devinfo_table
;
275 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
276 * devinfo vendor and model strings.
278 static void scsi_strcpy_devinfo(char *name
, char *to
, size_t to_length
,
279 char *from
, int compatible
)
283 from_length
= strlen(from
);
284 strncpy(to
, from
, min(to_length
, from_length
));
285 if (from_length
< to_length
) {
288 * NUL terminate the string if it is short.
290 to
[from_length
] = '\0';
293 * space pad the string if it is short.
295 strncpy(&to
[from_length
], spaces
,
296 to_length
- from_length
);
299 if (from_length
> to_length
)
300 printk(KERN_WARNING
"%s: %s string '%s' is too long\n",
301 __func__
, name
, from
);
305 * scsi_dev_info_list_add - add one dev_info list entry.
306 * @compatible: if true, null terminate short strings. Otherwise space pad.
307 * @vendor: vendor string
308 * @model: model (product) string
309 * @strflags: integer string
310 * @flags: if strflags NULL, use this flag value
313 * Create and add one dev_info entry for @vendor, @model, @strflags or
314 * @flag. If @compatible, add to the tail of the list, do not space
315 * pad, and set devinfo->compatible. The scsi_static_device_list entries
316 * are added with @compatible 1 and @clfags NULL.
318 * Returns: 0 OK, -error on failure.
320 static int scsi_dev_info_list_add(int compatible
, char *vendor
, char *model
,
321 char *strflags
, int flags
)
323 return scsi_dev_info_list_add_keyed(compatible
, vendor
, model
,
325 SCSI_DEVINFO_GLOBAL
);
329 * scsi_dev_info_list_add_keyed - add one dev_info list entry.
330 * @compatible: if true, null terminate short strings. Otherwise space pad.
331 * @vendor: vendor string
332 * @model: model (product) string
333 * @strflags: integer string
334 * @flags: if strflags NULL, use this flag value
335 * @key: specify list to use
338 * Create and add one dev_info entry for @vendor, @model,
339 * @strflags or @flag in list specified by @key. If @compatible,
340 * add to the tail of the list, do not space pad, and set
341 * devinfo->compatible. The scsi_static_device_list entries are
342 * added with @compatible 1 and @clfags NULL.
344 * Returns: 0 OK, -error on failure.
346 int scsi_dev_info_list_add_keyed(int compatible
, char *vendor
, char *model
,
347 char *strflags
, int flags
, int key
)
349 struct scsi_dev_info_list
*devinfo
;
350 struct scsi_dev_info_list_table
*devinfo_table
=
351 scsi_devinfo_lookup_by_key(key
);
353 if (IS_ERR(devinfo_table
))
354 return PTR_ERR(devinfo_table
);
356 devinfo
= kmalloc(sizeof(*devinfo
), GFP_KERNEL
);
358 printk(KERN_ERR
"%s: no memory\n", __func__
);
362 scsi_strcpy_devinfo("vendor", devinfo
->vendor
, sizeof(devinfo
->vendor
),
364 scsi_strcpy_devinfo("model", devinfo
->model
, sizeof(devinfo
->model
),
368 devinfo
->flags
= simple_strtoul(strflags
, NULL
, 0);
370 devinfo
->flags
= flags
;
372 devinfo
->compatible
= compatible
;
375 list_add_tail(&devinfo
->dev_info_list
,
376 &devinfo_table
->scsi_dev_info_list
);
378 list_add(&devinfo
->dev_info_list
,
379 &devinfo_table
->scsi_dev_info_list
);
383 EXPORT_SYMBOL(scsi_dev_info_list_add_keyed
);
386 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
387 * @dev_list: string of device flags to add
390 * Parse dev_list, and add entries to the scsi_dev_info_list.
391 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
392 * dev_list is modified via strsep. Can be called for command line
393 * addition, for proc or mabye a sysfs interface.
395 * Returns: 0 if OK, -error on failure.
397 static int scsi_dev_info_list_add_str(char *dev_list
)
399 char *vendor
, *model
, *strflags
, *next
;
404 if (next
&& next
[0] == '"') {
406 * Ignore both the leading and trailing quote.
415 * For the leading and trailing '"' case, the for loop comes
416 * through the last time with vendor[0] == '\0'.
418 for (vendor
= strsep(&next
, ":"); vendor
&& (vendor
[0] != '\0')
419 && (res
== 0); vendor
= strsep(&next
, ":")) {
421 model
= strsep(&next
, ":");
423 strflags
= strsep(&next
, next_check
);
424 if (!model
|| !strflags
) {
425 printk(KERN_ERR
"%s: bad dev info string '%s' '%s'"
426 " '%s'\n", __func__
, vendor
, model
,
430 res
= scsi_dev_info_list_add(0 /* compatible */, vendor
,
437 * get_device_flags - get device specific flags from the dynamic device list.
438 * @sdev: &scsi_device to get flags for
439 * @vendor: vendor name
443 * Search the global scsi_dev_info_list (specified by list zero)
444 * for an entry matching @vendor and @model, if found, return the
445 * matching flags value, else return the host or global default
446 * settings. Called during scan time.
448 int scsi_get_device_flags(struct scsi_device
*sdev
,
449 const unsigned char *vendor
,
450 const unsigned char *model
)
452 return scsi_get_device_flags_keyed(sdev
, vendor
, model
,
453 SCSI_DEVINFO_GLOBAL
);
458 * get_device_flags_keyed - get device specific flags from the dynamic device list.
459 * @sdev: &scsi_device to get flags for
460 * @vendor: vendor name
462 * @key: list to look up
465 * Search the scsi_dev_info_list specified by @key for an entry
466 * matching @vendor and @model, if found, return the matching
467 * flags value, else return the host or global default settings.
468 * Called during scan time.
470 int scsi_get_device_flags_keyed(struct scsi_device
*sdev
,
471 const unsigned char *vendor
,
472 const unsigned char *model
,
475 struct scsi_dev_info_list
*devinfo
;
476 struct scsi_dev_info_list_table
*devinfo_table
;
478 devinfo_table
= scsi_devinfo_lookup_by_key(key
);
480 if (IS_ERR(devinfo_table
))
481 return PTR_ERR(devinfo_table
);
483 list_for_each_entry(devinfo
, &devinfo_table
->scsi_dev_info_list
,
485 if (devinfo
->compatible
) {
487 * Behave like the older version of get_device_flags.
491 * XXX why skip leading spaces? If an odd INQUIRY
492 * value, that should have been part of the
493 * scsi_static_device_list[] entry, such as " FOO"
494 * rather than "FOO". Since this code is already
495 * here, and we don't know what device it is
496 * trying to work with, leave it as-is.
498 max
= 8; /* max length of vendor */
499 while ((max
> 0) && *vendor
== ' ') {
504 * XXX removing the following strlen() would be
505 * good, using it means that for a an entry not in
506 * the list, we scan every byte of every vendor
507 * listed in scsi_static_device_list[], and never match
508 * a single one (and still have to compare at
509 * least the first byte of each vendor).
511 if (memcmp(devinfo
->vendor
, vendor
,
512 min(max
, strlen(devinfo
->vendor
))))
517 max
= 16; /* max length of model */
518 while ((max
> 0) && *model
== ' ') {
522 if (memcmp(devinfo
->model
, model
,
523 min(max
, strlen(devinfo
->model
))))
525 return devinfo
->flags
;
527 if (!memcmp(devinfo
->vendor
, vendor
,
528 sizeof(devinfo
->vendor
)) &&
529 !memcmp(devinfo
->model
, model
,
530 sizeof(devinfo
->model
)))
531 return devinfo
->flags
;
534 /* nothing found, return nothing */
535 if (key
!= SCSI_DEVINFO_GLOBAL
)
538 /* except for the global list, where we have an exception */
539 if (sdev
->sdev_bflags
)
540 return sdev
->sdev_bflags
;
542 return scsi_default_dev_flags
;
544 EXPORT_SYMBOL(scsi_get_device_flags_keyed
);
546 #ifdef CONFIG_SCSI_PROC_FS
548 struct list_head
*top
;
549 struct list_head
*bottom
;
552 static int devinfo_seq_show(struct seq_file
*m
, void *v
)
554 struct double_list
*dl
= v
;
555 struct scsi_dev_info_list_table
*devinfo_table
=
556 list_entry(dl
->top
, struct scsi_dev_info_list_table
, node
);
557 struct scsi_dev_info_list
*devinfo
=
558 list_entry(dl
->bottom
, struct scsi_dev_info_list
,
561 if (devinfo_table
->scsi_dev_info_list
.next
== dl
->bottom
&&
563 seq_printf(m
, "[%s]:\n", devinfo_table
->name
);
565 seq_printf(m
, "'%.8s' '%.16s' 0x%x\n",
566 devinfo
->vendor
, devinfo
->model
, devinfo
->flags
);
570 static void *devinfo_seq_start(struct seq_file
*m
, loff_t
*ppos
)
572 struct double_list
*dl
= kmalloc(sizeof(*dl
), GFP_KERNEL
);
578 list_for_each(dl
->top
, &scsi_dev_info_list
) {
579 struct scsi_dev_info_list_table
*devinfo_table
=
580 list_entry(dl
->top
, struct scsi_dev_info_list_table
,
582 list_for_each(dl
->bottom
, &devinfo_table
->scsi_dev_info_list
)
591 static void *devinfo_seq_next(struct seq_file
*m
, void *v
, loff_t
*ppos
)
593 struct double_list
*dl
= v
;
594 struct scsi_dev_info_list_table
*devinfo_table
=
595 list_entry(dl
->top
, struct scsi_dev_info_list_table
, node
);
598 dl
->bottom
= dl
->bottom
->next
;
599 while (&devinfo_table
->scsi_dev_info_list
== dl
->bottom
) {
600 dl
->top
= dl
->top
->next
;
601 if (dl
->top
== &scsi_dev_info_list
) {
605 devinfo_table
= list_entry(dl
->top
,
606 struct scsi_dev_info_list_table
,
608 dl
->bottom
= devinfo_table
->scsi_dev_info_list
.next
;
614 static void devinfo_seq_stop(struct seq_file
*m
, void *v
)
619 static const struct seq_operations scsi_devinfo_seq_ops
= {
620 .start
= devinfo_seq_start
,
621 .next
= devinfo_seq_next
,
622 .stop
= devinfo_seq_stop
,
623 .show
= devinfo_seq_show
,
626 static int proc_scsi_devinfo_open(struct inode
*inode
, struct file
*file
)
628 return seq_open(file
, &scsi_devinfo_seq_ops
);
632 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
634 * Description: Adds a black/white list entry for vendor and model with an
635 * integer value of flag to the scsi device info list.
636 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
638 static ssize_t
proc_scsi_devinfo_write(struct file
*file
,
639 const char __user
*buf
,
640 size_t length
, loff_t
*ppos
)
643 ssize_t err
= length
;
645 if (!buf
|| length
>PAGE_SIZE
)
647 if (!(buffer
= (char *) __get_free_page(GFP_KERNEL
)))
649 if (copy_from_user(buffer
, buf
, length
)) {
654 if (length
< PAGE_SIZE
)
655 buffer
[length
] = '\0';
656 else if (buffer
[PAGE_SIZE
-1]) {
661 scsi_dev_info_list_add_str(buffer
);
664 free_page((unsigned long)buffer
);
668 static const struct file_operations scsi_devinfo_proc_fops
= {
669 .owner
= THIS_MODULE
,
670 .open
= proc_scsi_devinfo_open
,
672 .write
= proc_scsi_devinfo_write
,
674 .release
= seq_release
,
676 #endif /* CONFIG_SCSI_PROC_FS */
678 module_param_string(dev_flags
, scsi_dev_flags
, sizeof(scsi_dev_flags
), 0);
679 MODULE_PARM_DESC(dev_flags
,
680 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
681 " list entries for vendor and model with an integer value of flags"
682 " to the scsi device info list");
684 module_param_named(default_dev_flags
, scsi_default_dev_flags
, int, S_IRUGO
|S_IWUSR
);
685 MODULE_PARM_DESC(default_dev_flags
,
686 "scsi default device flag integer value");
689 * scsi_dev_info_list_delete - called from scsi.c:exit_scsi to remove the scsi_dev_info_list.
691 void scsi_exit_devinfo(void)
693 #ifdef CONFIG_SCSI_PROC_FS
694 remove_proc_entry("scsi/device_info", NULL
);
697 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL
);
701 * scsi_dev_info_add_list - add a new devinfo list
702 * @key: key of the list to add
703 * @name: Name of the list to add (for /proc/scsi/device_info)
705 * Adds the requested list, returns zero on success, -EEXIST if the
706 * key is already registered to a list, or other error on failure.
708 int scsi_dev_info_add_list(int key
, const char *name
)
710 struct scsi_dev_info_list_table
*devinfo_table
=
711 scsi_devinfo_lookup_by_key(key
);
713 if (!IS_ERR(devinfo_table
))
714 /* list already exists */
717 devinfo_table
= kmalloc(sizeof(*devinfo_table
), GFP_KERNEL
);
722 INIT_LIST_HEAD(&devinfo_table
->node
);
723 INIT_LIST_HEAD(&devinfo_table
->scsi_dev_info_list
);
724 devinfo_table
->name
= name
;
725 devinfo_table
->key
= key
;
726 list_add_tail(&devinfo_table
->node
, &scsi_dev_info_list
);
730 EXPORT_SYMBOL(scsi_dev_info_add_list
);
733 * scsi_dev_info_remove_list - destroy an added devinfo list
734 * @key: key of the list to destroy
736 * Iterates over the entire list first, freeing all the values, then
737 * frees the list itself. Returns 0 on success or -EINVAL if the key
740 int scsi_dev_info_remove_list(int key
)
742 struct list_head
*lh
, *lh_next
;
743 struct scsi_dev_info_list_table
*devinfo_table
=
744 scsi_devinfo_lookup_by_key(key
);
746 if (IS_ERR(devinfo_table
))
750 /* remove from the master list */
751 list_del(&devinfo_table
->node
);
753 list_for_each_safe(lh
, lh_next
, &devinfo_table
->scsi_dev_info_list
) {
754 struct scsi_dev_info_list
*devinfo
;
756 devinfo
= list_entry(lh
, struct scsi_dev_info_list
,
760 kfree(devinfo_table
);
764 EXPORT_SYMBOL(scsi_dev_info_remove_list
);
767 * scsi_init_devinfo - set up the dynamic device list.
770 * Add command line entries from scsi_dev_flags, then add
771 * scsi_static_device_list entries to the scsi device info list.
773 int __init
scsi_init_devinfo(void)
775 #ifdef CONFIG_SCSI_PROC_FS
776 struct proc_dir_entry
*p
;
780 error
= scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL
, NULL
);
784 error
= scsi_dev_info_list_add_str(scsi_dev_flags
);
788 for (i
= 0; scsi_static_device_list
[i
].vendor
; i
++) {
789 error
= scsi_dev_info_list_add(1 /* compatibile */,
790 scsi_static_device_list
[i
].vendor
,
791 scsi_static_device_list
[i
].model
,
793 scsi_static_device_list
[i
].flags
);
798 #ifdef CONFIG_SCSI_PROC_FS
799 p
= proc_create("scsi/device_info", 0, NULL
, &scsi_devinfo_proc_fops
);
804 #endif /* CONFIG_SCSI_PROC_FS */