1
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>
10#include <linux/slab.h>
11
12#include <scsi/scsi_device.h>
13#include <scsi/scsi_devinfo.h>
14
15#include "scsi_priv.h"
16
17
18
19
20
21struct scsi_dev_info_list {
22 struct list_head dev_info_list;
23 char vendor[8];
24 char model[16];
25 blist_flags_t flags;
26 unsigned compatible;
27};
28
29struct scsi_dev_info_list_table {
30 struct list_head node;
31 struct list_head scsi_dev_info_list;
32 const char *name;
33 int key;
34};
35
36
37static blist_flags_t scsi_default_dev_flags;
38static LIST_HEAD(scsi_dev_info_list);
39static char scsi_dev_flags[256];
40
41
42
43
44
45
46
47
48
49
50static struct {
51 char *vendor;
52 char *model;
53 char *revision;
54 blist_flags_t flags;
55} scsi_static_device_list[] __initdata = {
56
57
58
59
60
61 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN},
62 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN},
63 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN},
64 {"DENON", "DRD-25X", "V", BLIST_NOLUN},
65 {"HITACHI", "DK312C", "CM81", BLIST_NOLUN},
66 {"HITACHI", "DK314C", "CR21", BLIST_NOLUN},
67 {"IBM", "2104-DU3", NULL, BLIST_NOLUN},
68 {"IBM", "2104-TU3", NULL, BLIST_NOLUN},
69 {"IMS", "CDD521/10", "2.06", BLIST_NOLUN},
70 {"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN},
71 {"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN},
72 {"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN},
73 {"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN},
74 {"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN},
75 {"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN},
76 {"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN},
77 {"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},
78 {"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN},
79 {"RODIME", "RO3000S", "2.33", BLIST_NOLUN},
80 {"SUN", "SENA", NULL, BLIST_NOLUN},
81
82
83
84
85 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
86
87
88
89
90 {"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
91 {"SEAGATE", "ST296", "921", BLIST_NOLUN},
92 {"SEAGATE", "ST1581", "6538", BLIST_NOLUN},
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},
99 {"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN},
100
101
102
103
104 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
105 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN},
106
107
108
109
110 {"HP", "C1750A", "3226", BLIST_NOLUN},
111 {"HP", "C1790A", NULL, BLIST_NOLUN},
112 {"HP", "C2500A", NULL, BLIST_NOLUN},
113 {"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN},
114 {"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN},
115 {"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN},
116 {"NEC", "D3856", "0009", BLIST_NOLUN},
117 {"QUANTUM", "LPS525S", "3110", BLIST_NOLUN},
118 {"QUANTUM", "PD1225S", "3110", BLIST_NOLUN},
119 {"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN},
120 {"RELISYS", "Scorpio", NULL, BLIST_NOLUN},
121 {"SANKYO", "CP525", "6.64", BLIST_NOLUN},
122 {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN | BLIST_BORKEN},
123 {"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
124 {"YAMAHA", "CDR100", "1.00", BLIST_NOLUN},
125 {"YAMAHA", "CDR102", "1.00", BLIST_NOLUN},
126 {"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN},
127 {"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN},
128 {"", "Scanner", "1.80", BLIST_NOLUN},
129
130
131
132
133
134 {"3PARdata", "VV", NULL, BLIST_REPORTLUN2},
135 {"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
136 {"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
137 {"AIX", "VDASD", NULL, BLIST_TRY_VPD_PAGES},
138 {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
139 {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36},
140 {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN},
141 {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
142 {"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
143 {"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36},
144 {"CMD", "CRA-7280", NULL, BLIST_SPARSELUN},
145 {"CNSI", "G7324", NULL, BLIST_SPARSELUN},
146 {"CNSi", "G8324", NULL, BLIST_SPARSELUN},
147 {"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN |
148 BLIST_MAX_512 | BLIST_REPORTLUN2},
149 {"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512},
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},
155 {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
156 {"DELL", "PV660F", NULL, BLIST_SPARSELUN},
157 {"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN},
158 {"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN},
159 {"DELL", "PV530F", NULL, BLIST_SPARSELUN},
160 {"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
161 {"DGC", "RAID", NULL, BLIST_SPARSELUN},
162 {"DGC", "DISK", NULL, BLIST_SPARSELUN},
163 {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
164 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN |
165 BLIST_REPORTLUN2 | BLIST_RETRY_ITF},
166 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
167 {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
168 {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
169 {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN},
170 {"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
171 {"FUJITSU", "ETERNUS_DXM", "*", BLIST_RETRY_ASC_C1},
172 {"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
173 {"Generic", "USB Storage-SMC", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
174 {"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
175 {"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
176 {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
177 {"HITACHI", "HUS1530", "*", BLIST_NO_DIF},
178 {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES},
179 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN},
180 {"HP", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES},
181 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
182 {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
183 {"HP", "C1557A", NULL, BLIST_FORCELUN},
184 {"HP", "C3323-300", "4269", BLIST_NOTQ},
185 {"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
186 {"HP", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
187 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
188 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
189 {"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
190 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
191 {"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN},
192 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
193 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
194 {"INSITE", "I325VM", NULL, BLIST_KEY},
195 {"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
196 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
197 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
198 {"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
199 {"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES},
200 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
201 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
202 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
203 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
204 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
205 {"MICROP", "4110", NULL, BLIST_NOTQ},
206 {"MSFT", "Virtual HD", NULL, BLIST_MAX_1024 | BLIST_NO_RSOC},
207 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
208 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
209 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
210 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
211 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
212 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
213 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
214 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
215 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
216 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
217 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
218 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
219 {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
220 {"Promise", "", NULL, BLIST_SPARSELUN},
221 {"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES},
222 {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
223 {"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
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},
228 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
229 {"SEAGATE", "ST900MM0006", NULL, BLIST_SKIP_VPD_PAGES},
230 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
231 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
232 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
233 {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
234 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
235 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
236 {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
237 {"STK", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
238 {"NETAPP", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
239 {"LSI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
240 {"ENGENIO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
241 {"LENOVO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
242 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
243 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
244 {"SONY", "TSL", NULL, BLIST_FORCELUN},
245 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
246 {"SUN", "T300", "*", BLIST_SPARSELUN},
247 {"SUN", "T4", "*", BLIST_SPARSELUN},
248 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
249 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
250 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
251 {"Traxdata", "CDR4120", NULL, BLIST_NOLUN},
252 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
253 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
254 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
255 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
256 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
257 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
258 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
259 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
260 { NULL, NULL, NULL, 0 },
261};
262
263static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
264{
265 struct scsi_dev_info_list_table *devinfo_table;
266 int found = 0;
267
268 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
269 if (devinfo_table->key == key) {
270 found = 1;
271 break;
272 }
273 if (!found)
274 return ERR_PTR(-EINVAL);
275
276 return devinfo_table;
277}
278
279
280
281
282
283static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
284 char *from, int compatible)
285{
286 size_t from_length;
287
288 from_length = strlen(from);
289
290 strncpy(to, from, to_length);
291 if (from_length < to_length && !compatible) {
292
293
294
295 memset(&to[from_length], ' ', to_length - from_length);
296 }
297 if (from_length > to_length)
298 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
299 __func__, name, from);
300}
301
302
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316
317
318static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
319 char *strflags, blist_flags_t flags)
320{
321 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
322 strflags, flags,
323 SCSI_DEVINFO_GLOBAL);
324}
325
326
327
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342
343
344int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
345 char *strflags, blist_flags_t flags,
346 enum scsi_devinfo_key key)
347{
348 struct scsi_dev_info_list *devinfo;
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);
354
355 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
356 if (!devinfo) {
357 printk(KERN_ERR "%s: no memory\n", __func__);
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 unsigned long long val;
368 int ret = kstrtoull(strflags, 0, &val);
369
370 if (ret != 0) {
371 kfree(devinfo);
372 return ret;
373 }
374 flags = (__force blist_flags_t)val;
375 }
376 if (flags & __BLIST_UNUSED_MASK) {
377 pr_err("scsi_devinfo (%s:%s): unsupported flags 0x%llx",
378 vendor, model, flags & __BLIST_UNUSED_MASK);
379 kfree(devinfo);
380 return -EINVAL;
381 }
382 devinfo->flags = flags;
383 devinfo->compatible = compatible;
384
385 if (compatible)
386 list_add_tail(&devinfo->dev_info_list,
387 &devinfo_table->scsi_dev_info_list);
388 else
389 list_add(&devinfo->dev_info_list,
390 &devinfo_table->scsi_dev_info_list);
391
392 return 0;
393}
394EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
395
396
397
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406
407
408static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
409 const char *model, enum scsi_devinfo_key key)
410{
411 struct scsi_dev_info_list *devinfo;
412 struct scsi_dev_info_list_table *devinfo_table =
413 scsi_devinfo_lookup_by_key(key);
414 size_t vmax, mmax, mlen;
415 const char *vskip, *mskip;
416
417 if (IS_ERR(devinfo_table))
418 return (struct scsi_dev_info_list *) devinfo_table;
419
420
421
422
423
424
425
426
427
428
429
430 vmax = sizeof(devinfo->vendor);
431 vskip = vendor;
432 while (vmax > 0 && *vskip == ' ') {
433 vmax--;
434 vskip++;
435 }
436
437 while (vmax > 0 && vskip[vmax - 1] == ' ')
438 --vmax;
439
440 mmax = sizeof(devinfo->model);
441 mskip = model;
442 while (mmax > 0 && *mskip == ' ') {
443 mmax--;
444 mskip++;
445 }
446 while (mmax > 0 && mskip[mmax - 1] == ' ')
447 --mmax;
448
449 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
450 dev_info_list) {
451 if (devinfo->compatible) {
452
453
454
455 if (vmax != strnlen(devinfo->vendor,
456 sizeof(devinfo->vendor)) ||
457 memcmp(devinfo->vendor, vskip, vmax))
458 continue;
459
460
461
462
463
464 mlen = strnlen(devinfo->model, sizeof(devinfo->model));
465 if (mmax < mlen || memcmp(devinfo->model, mskip, mlen))
466 continue;
467 return devinfo;
468 } else {
469 if (!memcmp(devinfo->vendor, vendor,
470 sizeof(devinfo->vendor)) &&
471 !memcmp(devinfo->model, model,
472 sizeof(devinfo->model)))
473 return devinfo;
474 }
475 }
476
477 return ERR_PTR(-ENOENT);
478}
479
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490
491
492int scsi_dev_info_list_del_keyed(char *vendor, char *model,
493 enum scsi_devinfo_key key)
494{
495 struct scsi_dev_info_list *found;
496
497 found = scsi_dev_info_list_find(vendor, model, key);
498 if (IS_ERR(found))
499 return PTR_ERR(found);
500
501 list_del(&found->dev_info_list);
502 kfree(found);
503 return 0;
504}
505EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
506
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518
519static int scsi_dev_info_list_add_str(char *dev_list)
520{
521 char *vendor, *model, *strflags, *next;
522 char *next_check;
523 int res = 0;
524
525 next = dev_list;
526 if (next && next[0] == '"') {
527
528
529
530 next++;
531 next_check = ",\"";
532 } else {
533 next_check = ",";
534 }
535
536
537
538
539
540 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
541 && (res == 0); vendor = strsep(&next, ":")) {
542 strflags = NULL;
543 model = strsep(&next, ":");
544 if (model)
545 strflags = strsep(&next, next_check);
546 if (!model || !strflags) {
547 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
548 " '%s'\n", __func__, vendor, model,
549 strflags);
550 res = -EINVAL;
551 } else
552 res = scsi_dev_info_list_add(0 , vendor,
553 model, strflags, 0);
554 }
555 return res;
556}
557
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569
570blist_flags_t scsi_get_device_flags(struct scsi_device *sdev,
571 const unsigned char *vendor,
572 const unsigned char *model)
573{
574 return scsi_get_device_flags_keyed(sdev, vendor, model,
575 SCSI_DEVINFO_GLOBAL);
576}
577
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591
592blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev,
593 const unsigned char *vendor,
594 const unsigned char *model,
595 enum scsi_devinfo_key key)
596{
597 struct scsi_dev_info_list *devinfo;
598
599 devinfo = scsi_dev_info_list_find(vendor, model, key);
600 if (!IS_ERR(devinfo))
601 return devinfo->flags;
602
603
604 if (key != SCSI_DEVINFO_GLOBAL)
605 return 0;
606
607
608 if (sdev->sdev_bflags)
609 return sdev->sdev_bflags;
610
611 return scsi_default_dev_flags;
612}
613EXPORT_SYMBOL(scsi_get_device_flags_keyed);
614
615#ifdef CONFIG_SCSI_PROC_FS
616struct double_list {
617 struct list_head *top;
618 struct list_head *bottom;
619};
620
621static int devinfo_seq_show(struct seq_file *m, void *v)
622{
623 struct double_list *dl = v;
624 struct scsi_dev_info_list_table *devinfo_table =
625 list_entry(dl->top, struct scsi_dev_info_list_table, node);
626 struct scsi_dev_info_list *devinfo =
627 list_entry(dl->bottom, struct scsi_dev_info_list,
628 dev_info_list);
629
630 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
631 devinfo_table->name)
632 seq_printf(m, "[%s]:\n", devinfo_table->name);
633
634 seq_printf(m, "'%.8s' '%.16s' 0x%llx\n",
635 devinfo->vendor, devinfo->model, devinfo->flags);
636 return 0;
637}
638
639static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
640{
641 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
642 loff_t pos = *ppos;
643
644 if (!dl)
645 return NULL;
646
647 list_for_each(dl->top, &scsi_dev_info_list) {
648 struct scsi_dev_info_list_table *devinfo_table =
649 list_entry(dl->top, struct scsi_dev_info_list_table,
650 node);
651 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
652 if (pos-- == 0)
653 return dl;
654 }
655
656 kfree(dl);
657 return NULL;
658}
659
660static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
661{
662 struct double_list *dl = v;
663 struct scsi_dev_info_list_table *devinfo_table =
664 list_entry(dl->top, struct scsi_dev_info_list_table, node);
665
666 ++*ppos;
667 dl->bottom = dl->bottom->next;
668 while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
669 dl->top = dl->top->next;
670 if (dl->top == &scsi_dev_info_list) {
671 kfree(dl);
672 return NULL;
673 }
674 devinfo_table = list_entry(dl->top,
675 struct scsi_dev_info_list_table,
676 node);
677 dl->bottom = devinfo_table->scsi_dev_info_list.next;
678 }
679
680 return dl;
681}
682
683static void devinfo_seq_stop(struct seq_file *m, void *v)
684{
685 kfree(v);
686}
687
688static const struct seq_operations scsi_devinfo_seq_ops = {
689 .start = devinfo_seq_start,
690 .next = devinfo_seq_next,
691 .stop = devinfo_seq_stop,
692 .show = devinfo_seq_show,
693};
694
695static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
696{
697 return seq_open(file, &scsi_devinfo_seq_ops);
698}
699
700
701
702
703
704
705
706
707static ssize_t proc_scsi_devinfo_write(struct file *file,
708 const char __user *buf,
709 size_t length, loff_t *ppos)
710{
711 char *buffer;
712 ssize_t err = length;
713
714 if (!buf || length>PAGE_SIZE)
715 return -EINVAL;
716 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
717 return -ENOMEM;
718 if (copy_from_user(buffer, buf, length)) {
719 err =-EFAULT;
720 goto out;
721 }
722
723 if (length < PAGE_SIZE)
724 buffer[length] = '\0';
725 else if (buffer[PAGE_SIZE-1]) {
726 err = -EINVAL;
727 goto out;
728 }
729
730 scsi_dev_info_list_add_str(buffer);
731
732out:
733 free_page((unsigned long)buffer);
734 return err;
735}
736
737static const struct file_operations scsi_devinfo_proc_fops = {
738 .owner = THIS_MODULE,
739 .open = proc_scsi_devinfo_open,
740 .read = seq_read,
741 .write = proc_scsi_devinfo_write,
742 .llseek = seq_lseek,
743 .release = seq_release,
744};
745#endif
746
747module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
748MODULE_PARM_DESC(dev_flags,
749 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
750 " list entries for vendor and model with an integer value of flags"
751 " to the scsi device info list");
752
753module_param_named(default_dev_flags, scsi_default_dev_flags, ullong, 0644);
754MODULE_PARM_DESC(default_dev_flags,
755 "scsi default device flag uint64_t value");
756
757
758
759
760void scsi_exit_devinfo(void)
761{
762#ifdef CONFIG_SCSI_PROC_FS
763 remove_proc_entry("scsi/device_info", NULL);
764#endif
765
766 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
767}
768
769
770
771
772
773
774
775
776
777int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name)
778{
779 struct scsi_dev_info_list_table *devinfo_table =
780 scsi_devinfo_lookup_by_key(key);
781
782 if (!IS_ERR(devinfo_table))
783
784 return -EEXIST;
785
786 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
787
788 if (!devinfo_table)
789 return -ENOMEM;
790
791 INIT_LIST_HEAD(&devinfo_table->node);
792 INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
793 devinfo_table->name = name;
794 devinfo_table->key = key;
795 list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
796
797 return 0;
798}
799EXPORT_SYMBOL(scsi_dev_info_add_list);
800
801
802
803
804
805
806
807
808
809int scsi_dev_info_remove_list(enum scsi_devinfo_key key)
810{
811 struct list_head *lh, *lh_next;
812 struct scsi_dev_info_list_table *devinfo_table =
813 scsi_devinfo_lookup_by_key(key);
814
815 if (IS_ERR(devinfo_table))
816
817 return -EINVAL;
818
819
820 list_del(&devinfo_table->node);
821
822 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
823 struct scsi_dev_info_list *devinfo;
824
825 devinfo = list_entry(lh, struct scsi_dev_info_list,
826 dev_info_list);
827 kfree(devinfo);
828 }
829 kfree(devinfo_table);
830
831 return 0;
832}
833EXPORT_SYMBOL(scsi_dev_info_remove_list);
834
835
836
837
838
839
840
841
842int __init scsi_init_devinfo(void)
843{
844#ifdef CONFIG_SCSI_PROC_FS
845 struct proc_dir_entry *p;
846#endif
847 int error, i;
848
849 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
850 if (error)
851 return error;
852
853 error = scsi_dev_info_list_add_str(scsi_dev_flags);
854 if (error)
855 goto out;
856
857 for (i = 0; scsi_static_device_list[i].vendor; i++) {
858 error = scsi_dev_info_list_add(1 ,
859 scsi_static_device_list[i].vendor,
860 scsi_static_device_list[i].model,
861 NULL,
862 scsi_static_device_list[i].flags);
863 if (error)
864 goto out;
865 }
866
867#ifdef CONFIG_SCSI_PROC_FS
868 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
869 if (!p) {
870 error = -ENOMEM;
871 goto out;
872 }
873#endif
874
875 out:
876 if (error)
877 scsi_exit_devinfo();
878 return error;
879}
880