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MOXA linux-2.6.x / linux-2.6.9-uc0 from sdlinux-moxaart.tgz
[linux-2.6.9-moxart.git] / drivers / scsi / scsi_devinfo.c
blob0153b774757b658aa0cb4068fe3128f2f3de2b8a
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>
9
10 #include <scsi/scsi_device.h>
11 #include <scsi/scsi_devinfo.h>
12
13 #include "scsi_priv.h"
14
15
16 /*
17 * scsi_dev_info_list: structure to hold black/white listed devices.
18 */
19 struct scsi_dev_info_list {
20 struct list_head dev_info_list;
21 char vendor[8];
22 char model[16];
23 unsigned flags;
24 unsigned compatible; /* for use with scsi_static_device_list entries */
25 };
26
27
28 static const char spaces[] = " "; /* 16 of them */
29 static unsigned scsi_default_dev_flags;
30 static LIST_HEAD(scsi_dev_info_list);
31 static __initdata char scsi_dev_flags[256];
32
33 /*
34 * scsi_static_device_list: deprecated list of devices that require
35 * settings that differ from the default, includes black-listed (broken)
36 * devices. The entries here are added to the tail of scsi_dev_info_list
37 * via scsi_dev_info_list_init.
38 *
39 * Do not add to this list, use the command line or proc interface to add
40 * to the scsi_dev_info_list. This table will eventually go away.
41 */
42 static struct {
43 char *vendor;
44 char *model;
45 char *revision; /* revision known to be bad, unused */
46 unsigned flags;
47 } scsi_static_device_list[] __initdata = {
48 /*
49 * The following devices are known not to tolerate a lun != 0 scan
50 * for one reason or another. Some will respond to all luns,
51 * others will lock up.
52 */
53 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */
54 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */
55 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */
56 {"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */
57 {"HITACHI", "DK312C", "CM81", BLIST_NOLUN}, /* responds to all lun */
58 {"HITACHI", "DK314C", "CR21", BLIST_NOLUN}, /* responds to all lun */
59 {"IMS", "CDD521/10", "2.06", BLIST_NOLUN}, /* locks up */
60 {"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN}, /* locks up */
61 {"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN}, /* locks up */
62 {"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN}, /* locks up */
63 {"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN}, /* locks up */
64 {"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN}, /* locks up */
65 {"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN}, /* responds to all lun */
66 {"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */
67 {"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN}, /* responds to all lun */
68 {"RODIME", "RO3000S", "2.33", BLIST_NOLUN}, /* locks up */
69 {"SUN", "SENA", NULL, BLIST_NOLUN}, /* responds to all luns */
70 /*
71 * The following causes a failed REQUEST SENSE on lun 1 for
72 * aha152x controller, which causes SCSI code to reset bus.
73 */
74 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
75 /*
76 * The following causes a failed REQUEST SENSE on lun 1 for
77 * aha152x controller, which causes SCSI code to reset bus.
78 */
79 {"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
80 {"SEAGATE", "ST296", "921", BLIST_NOLUN}, /* responds to all lun */
81 {"SEAGATE", "ST1581", "6538", BLIST_NOLUN}, /* responds to all lun */
82 {"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN},
83 {"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN},
84 {"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN},
85 {"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN},
86 {"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN}, /* locks up */
87 {"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN}, /* locks up */
88 /*
89 * The following causes a failed REQUEST SENSE on lun 1 for
90 * seagate controller, which causes SCSI code to reset bus.
91 */
92 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
93 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */
94 /*
95 * The following causes a failed REQUEST SENSE on lun 1 for
96 * seagate controller, which causes SCSI code to reset bus.
97 */
98 {"HP", "C1750A", "3226", BLIST_NOLUN}, /* scanjet iic */
99 {"HP", "C1790A", "", BLIST_NOLUN}, /* scanjet iip */
100 {"HP", "C2500A", "", BLIST_NOLUN}, /* scanjet iicx */
101 {"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN}, /* locks up */
102 {"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN}, /* responds to all lun */
103 {"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN}, /* locks up */
104 {"NEC", "D3856", "0009", BLIST_NOLUN},
105 {"QUANTUM", "LPS525S", "3110", BLIST_NOLUN}, /* locks up */
106 {"QUANTUM", "PD1225S", "3110", BLIST_NOLUN}, /* locks up */
107 {"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN}, /* locks up */
108 {"RELISYS", "Scorpio", NULL, BLIST_NOLUN}, /* responds to all lun */
109 {"SANKYO", "CP525", "6.64", BLIST_NOLUN}, /* causes failed REQ SENSE, extra reset */
110 {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
111 {"YAMAHA", "CDR100", "1.00", BLIST_NOLUN}, /* locks up */
112 {"YAMAHA", "CDR102", "1.00", BLIST_NOLUN}, /* locks up */
113 {"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN}, /* locks up */
114 {"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN}, /* locks up */
115
116 /*
117 * Other types of devices that have special flags.
118 */
119 {"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
120 {"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
121 {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
122 {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN},
123 {"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
124 {"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN},
125 {"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */
126 {"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */
127 {"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */
128 {"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN},
129 {"COMPAQ", "CR3500", NULL, BLIST_FORCELUN},
130 {"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
131 {"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
132 {"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
133 {"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN},
134 {"DEC", "HSG80", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
135 {"DELL", "PV660F", NULL, BLIST_SPARSELUN},
136 {"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN},
137 {"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */
138 {"DELL", "PV530F", NULL, BLIST_SPARSELUN},
139 {"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
140 {"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, storage on LUN 0 */
141 {"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, no storage on LUN 0 */
142 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
143 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
144 {"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
145 {"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN},
146 {"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN},
147 {"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN},
148 {"HITACHI", "DF400", "*", BLIST_SPARSELUN},
149 {"HITACHI", "DF500", "*", BLIST_SPARSELUN},
150 {"HITACHI", "DF600", "*", BLIST_SPARSELUN},
151 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
152 {"HP", "OPEN-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP XP Arrays */
153 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
154 {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
155 {"HP", "C1557A", NULL, BLIST_FORCELUN},
156 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
157 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
158 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
159 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
160 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
161 {"INSITE", "I325VM", NULL, BLIST_KEY},
162 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
163 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
164 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
165 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
166 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
167 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
168 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
169 {"MICROP", "4110", NULL, BLIST_NOTQ},
170 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
171 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
172 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
173 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
174 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
175 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
176 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
177 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
178 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
179 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
180 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
181 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
182 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
183 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
184 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
185 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN},
186 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
187 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
188 {"SUN", "T300", "*", BLIST_SPARSELUN},
189 {"SUN", "T4", "*", BLIST_SPARSELUN},
190 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
191 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
192 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
193 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN},
194 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
195 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
196 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
197 { NULL, NULL, NULL, 0 },
198 };
199
200 /*
201 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
202 * devinfo vendor and model strings.
203 */
204 static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
205 char *from, int compatible)
206 {
207 size_t from_length;
208
209 from_length = strlen(from);
210 strncpy(to, from, min(to_length, from_length));
211 if (from_length < to_length) {
212 if (compatible) {
213 /*
214 * NUL terminate the string if it is short.
215 */
216 to[from_length] = '\0';
217 } else {
218 /*
219 * space pad the string if it is short.
220 */
221 strncpy(&to[from_length], spaces,
222 to_length - from_length);
223 }
224 }
225 if (from_length > to_length)
226 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
227 __FUNCTION__, name, from);
228 }
229
230 /**
231 * scsi_dev_info_list_add: add one dev_info list entry.
232 * @vendor: vendor string
233 * @model: model (product) string
234 * @strflags: integer string
235 * @flag: if strflags NULL, use this flag value
236 *
237 * Description:
238 * Create and add one dev_info entry for @vendor, @model, @strflags or
239 * @flag. If @compatible, add to the tail of the list, do not space
240 * pad, and set devinfo->compatible. The scsi_static_device_list entries
241 * are added with @compatible 1 and @clfags NULL.
242 *
243 * Returns: 0 OK, -error on failure.
244 **/
245 static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
246 char *strflags, int flags)
247 {
248 struct scsi_dev_info_list *devinfo;
249
250 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
251 if (!devinfo) {
252 printk(KERN_ERR "%s: no memory\n", __FUNCTION__);
253 return -ENOMEM;
254 }
255
256 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
257 vendor, compatible);
258 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
259 model, compatible);
260
261 if (strflags)
262 devinfo->flags = simple_strtoul(strflags, NULL, 0);
263 else
264 devinfo->flags = flags;
265
266 devinfo->compatible = compatible;
267
268 if (compatible)
269 list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
270 else
271 list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
272
273 return 0;
274 }
275
276 /**
277 * scsi_dev_info_list_add_str: parse dev_list and add to the
278 * scsi_dev_info_list.
279 * @dev_list: string of device flags to add
280 *
281 * Description:
282 * Parse dev_list, and add entries to the scsi_dev_info_list.
283 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
284 * dev_list is modified via strsep. Can be called for command line
285 * addition, for proc or mabye a sysfs interface.
286 *
287 * Returns: 0 if OK, -error on failure.
288 **/
289 static int scsi_dev_info_list_add_str(char *dev_list)
290 {
291 char *vendor, *model, *strflags, *next;
292 char *next_check;
293 int res = 0;
294
295 next = dev_list;
296 if (next && next[0] == '"') {
297 /*
298 * Ignore both the leading and trailing quote.
299 */
300 next++;
301 next_check = ",\"";
302 } else {
303 next_check = ",";
304 }
305
306 /*
307 * For the leading and trailing '"' case, the for loop comes
308 * through the last time with vendor[0] == '\0'.
309 */
310 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
311 && (res == 0); vendor = strsep(&next, ":")) {
312 strflags = NULL;
313 model = strsep(&next, ":");
314 if (model)
315 strflags = strsep(&next, next_check);
316 if (!model || !strflags) {
317 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
318 " '%s'\n", __FUNCTION__, vendor, model,
319 strflags);
320 res = -EINVAL;
321 } else
322 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
323 model, strflags, 0);
324 }
325 return res;
326 }
327
328 /**
329 * get_device_flags - get device specific flags from the dynamic device
330 * list. Called during scan time.
331 * @vendor: vendor name
332 * @model: model name
333 *
334 * Description:
335 * Search the scsi_dev_info_list for an entry matching @vendor and
336 * @model, if found, return the matching flags value, else return
337 * the host or global default settings.
338 **/
339 int scsi_get_device_flags(struct scsi_device *sdev, unsigned char *vendor,
340 unsigned char *model)
341 {
342 struct scsi_dev_info_list *devinfo;
343 unsigned int bflags;
344
345 bflags = sdev->sdev_bflags;
346 if (!bflags)
347 bflags = scsi_default_dev_flags;
348
349 list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
350 if (devinfo->compatible) {
351 /*
352 * Behave like the older version of get_device_flags.
353 */
354 size_t max;
355 /*
356 * XXX why skip leading spaces? If an odd INQUIRY
357 * value, that should have been part of the
358 * scsi_static_device_list[] entry, such as " FOO"
359 * rather than "FOO". Since this code is already
360 * here, and we don't know what device it is
361 * trying to work with, leave it as-is.
362 */
363 max = 8; /* max length of vendor */
364 while ((max > 0) && *vendor == ' ') {
365 max--;
366 vendor++;
367 }
368 /*
369 * XXX removing the following strlen() would be
370 * good, using it means that for a an entry not in
371 * the list, we scan every byte of every vendor
372 * listed in scsi_static_device_list[], and never match
373 * a single one (and still have to compare at
374 * least the first byte of each vendor).
375 */
376 if (memcmp(devinfo->vendor, vendor,
377 min(max, strlen(devinfo->vendor))))
378 continue;
379 /*
380 * Skip spaces again.
381 */
382 max = 16; /* max length of model */
383 while ((max > 0) && *model == ' ') {
384 max--;
385 model++;
386 }
387 if (memcmp(devinfo->model, model,
388 min(max, strlen(devinfo->model))))
389 continue;
390 return devinfo->flags;
391 } else {
392 if (!memcmp(devinfo->vendor, vendor,
393 sizeof(devinfo->vendor)) &&
394 !memcmp(devinfo->model, model,
395 sizeof(devinfo->model)))
396 return devinfo->flags;
397 }
398 }
399 return bflags;
400 }
401
402 #ifdef CONFIG_SCSI_PROC_FS
403 /*
404 * proc_scsi_dev_info_read: dump the scsi_dev_info_list via
405 * /proc/scsi/device_info
406 */
407 static int proc_scsi_devinfo_read(char *buffer, char **start,
408 off_t offset, int length)
409 {
410 struct scsi_dev_info_list *devinfo;
411 int size, len = 0;
412 off_t begin = 0;
413 off_t pos = 0;
414
415 list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
416 size = sprintf(buffer + len, "'%.8s' '%.16s' 0x%x\n",
417 devinfo->vendor, devinfo->model, devinfo->flags);
418 len += size;
419 pos = begin + len;
420 if (pos < offset) {
421 len = 0;
422 begin = pos;
423 }
424 if (pos > offset + length)
425 goto stop_output;
426 }
427
428 stop_output:
429 *start = buffer + (offset - begin); /* Start of wanted data */
430 len -= (offset - begin); /* Start slop */
431 if (len > length)
432 len = length; /* Ending slop */
433 return (len);
434 }
435
436 /*
437 * proc_scsi_dev_info_write: allow additions to the scsi_dev_info_list via
438 * /proc.
439 *
440 * Use: echo "vendor:model:flag" > /proc/scsi/device_info
441 *
442 * To add a black/white list entry for vendor and model with an integer
443 * value of flag to the scsi device info list.
444 */
445 static int proc_scsi_devinfo_write(struct file *file, const char __user *buf,
446 unsigned long length, void *data)
447 {
448 char *buffer;
449 int err = length;
450
451 if (!buf || length>PAGE_SIZE)
452 return -EINVAL;
453 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
454 return -ENOMEM;
455 if (copy_from_user(buffer, buf, length)) {
456 err =-EFAULT;
457 goto out;
458 }
459
460 if (length < PAGE_SIZE)
461 buffer[length] = '\0';
462 else if (buffer[PAGE_SIZE-1]) {
463 err = -EINVAL;
464 goto out;
465 }
466
467 scsi_dev_info_list_add_str(buffer);
468
469 out:
470 free_page((unsigned long)buffer);
471 return err;
472 }
473 #endif /* CONFIG_SCSI_PROC_FS */
474
475 module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
476 MODULE_PARM_DESC(dev_flags,
477 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
478 " list entries for vendor and model with an integer value of flags"
479 " to the scsi device info list");
480
481 module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
482 MODULE_PARM_DESC(default_dev_flags,
483 "scsi default device flag integer value");
484
485 /**
486 * scsi_dev_info_list_delete: called from scsi.c:exit_scsi to remove
487 * the scsi_dev_info_list.
488 **/
489 void scsi_exit_devinfo(void)
490 {
491 struct list_head *lh, *lh_next;
492 struct scsi_dev_info_list *devinfo;
493
494 #ifdef CONFIG_SCSI_PROC_FS
495 remove_proc_entry("scsi/device_info", NULL);
496 #endif
497
498 list_for_each_safe(lh, lh_next, &scsi_dev_info_list) {
499 devinfo = list_entry(lh, struct scsi_dev_info_list,
500 dev_info_list);
501 kfree(devinfo);
502 }
503 }
504
505 /**
506 * scsi_dev_list_init: set up the dynamic device list.
507 * @dev_list: string of device flags to add
508 *
509 * Description:
510 * Add command line @dev_list entries, then add
511 * scsi_static_device_list entries to the scsi device info list.
512 **/
513 int scsi_init_devinfo(void)
514 {
515 #ifdef CONFIG_SCSI_PROC_FS
516 struct proc_dir_entry *p;
517 #endif
518 int error, i;
519
520 error = scsi_dev_info_list_add_str(scsi_dev_flags);
521 if (error)
522 return error;
523
524 for (i = 0; scsi_static_device_list[i].vendor; i++) {
525 error = scsi_dev_info_list_add(1 /* compatibile */,
526 scsi_static_device_list[i].vendor,
527 scsi_static_device_list[i].model,
528 NULL,
529 scsi_static_device_list[i].flags);
530 if (error)
531 goto out;
532 }
533
534 #ifdef CONFIG_SCSI_PROC_FS
535 p = create_proc_entry("scsi/device_info", 0, NULL);
536 if (!p) {
537 error = -ENOMEM;
538 goto out;
539 }
540
541 p->owner = THIS_MODULE;
542 p->get_info = proc_scsi_devinfo_read;
543 p->write_proc = proc_scsi_devinfo_write;
544 #endif /* CONFIG_SCSI_PROC_FS */
545
546 out:
547 if (error)
548 scsi_exit_devinfo();
549 return error;
550 }
MOXA 2.6.9 from sdlinux-moxaart.tgz