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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#include <linux/slab.h>
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 */
20struct 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
28struct 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
35
36static const char spaces[] = " "; /* 16 of them */
37static unsigned scsi_default_dev_flags;
38static LIST_HEAD(scsi_dev_info_list);
39static 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 */
50static 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 */
67 {"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */
68 {"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */
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},
123 {"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
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 */
128 {"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */
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},
139 {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN},
140 {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
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 */
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 */
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},
154 {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
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 */
162 {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
163 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
164 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
165 {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
166 {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
167 {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN},
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},
172 {"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
173 {"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
174 {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
175 {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
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},
181 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
182 {"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
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},
187 {"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
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},
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", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN},
201 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
202 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
203 {"INSITE", "I325VM", NULL, BLIST_KEY},
204 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
205 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
206 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
207 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
208 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
209 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
210 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
211 {"MICROP", "4110", NULL, BLIST_NOTQ},
212 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
213 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
214 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
215 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
216 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
217 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
218 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
219 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
220 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
221 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
222 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
223 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
224 {"Promise", "", NULL, BLIST_SPARSELUN},
225 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
226 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
227 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
228 {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
229 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
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 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
238 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
239 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
240 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
241 {"SUN", "T300", "*", BLIST_SPARSELUN},
242 {"SUN", "T4", "*", BLIST_SPARSELUN},
243 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
244 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
245 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
246 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
247 {"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */
248 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
249 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
250 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
251 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
252 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
253 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
254 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
255 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
256 { NULL, NULL, NULL, 0 },
257};
258
259static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
260{
261 struct scsi_dev_info_list_table *devinfo_table;
262 int found = 0;
263
264 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
265 if (devinfo_table->key == key) {
266 found = 1;
267 break;
268 }
269 if (!found)
270 return ERR_PTR(-EINVAL);
271
272 return devinfo_table;
273}
274
275/*
276 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
277 * devinfo vendor and model strings.
278 */
279static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
280 char *from, int compatible)
281{
282 size_t from_length;
283
284 from_length = strlen(from);
285 strncpy(to, from, min(to_length, from_length));
286 if (from_length < to_length) {
287 if (compatible) {
288 /*
289 * NUL terminate the string if it is short.
290 */
291 to[from_length] = '\0';
292 } else {
293 /*
294 * space pad the string if it is short.
295 */
296 strncpy(&to[from_length], spaces,
297 to_length - from_length);
298 }
299 }
300 if (from_length > to_length)
301 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
302 __func__, name, from);
303}
304
305/**
306 * scsi_dev_info_list_add - add one dev_info list entry.
307 * @compatible: if true, null terminate short strings. Otherwise space pad.
308 * @vendor: vendor string
309 * @model: model (product) string
310 * @strflags: integer string
311 * @flags: if strflags NULL, use this flag value
312 *
313 * Description:
314 * Create and add one dev_info entry for @vendor, @model, @strflags or
315 * @flag. If @compatible, add to the tail of the list, do not space
316 * pad, and set devinfo->compatible. The scsi_static_device_list entries
317 * are added with @compatible 1 and @clfags NULL.
318 *
319 * Returns: 0 OK, -error on failure.
320 **/
321static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
322 char *strflags, int flags)
323{
324 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
325 strflags, flags,
326 SCSI_DEVINFO_GLOBAL);
327}
328
329/**
330 * scsi_dev_info_list_add_keyed - add one dev_info list entry.
331 * @compatible: if true, null terminate short strings. Otherwise space pad.
332 * @vendor: vendor string
333 * @model: model (product) string
334 * @strflags: integer string
335 * @flags: if strflags NULL, use this flag value
336 * @key: specify list to use
337 *
338 * Description:
339 * Create and add one dev_info entry for @vendor, @model,
340 * @strflags or @flag in list specified by @key. If @compatible,
341 * add to the tail of the list, do not space pad, and set
342 * devinfo->compatible. The scsi_static_device_list entries are
343 * added with @compatible 1 and @clfags NULL.
344 *
345 * Returns: 0 OK, -error on failure.
346 **/
347int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
348 char *strflags, int flags, int key)
349{
350 struct scsi_dev_info_list *devinfo;
351 struct scsi_dev_info_list_table *devinfo_table =
352 scsi_devinfo_lookup_by_key(key);
353
354 if (IS_ERR(devinfo_table))
355 return PTR_ERR(devinfo_table);
356
357 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
358 if (!devinfo) {
359 printk(KERN_ERR "%s: no memory\n", __func__);
360 return -ENOMEM;
361 }
362
363 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
364 vendor, compatible);
365 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
366 model, compatible);
367
368 if (strflags)
369 devinfo->flags = simple_strtoul(strflags, NULL, 0);
370 else
371 devinfo->flags = flags;
372
373 devinfo->compatible = compatible;
374
375 if (compatible)
376 list_add_tail(&devinfo->dev_info_list,
377 &devinfo_table->scsi_dev_info_list);
378 else
379 list_add(&devinfo->dev_info_list,
380 &devinfo_table->scsi_dev_info_list);
381
382 return 0;
383}
384EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
385
386/**
387 * scsi_dev_info_list_del_keyed - remove one dev_info list entry.
388 * @vendor: vendor string
389 * @model: model (product) string
390 * @key: specify list to use
391 *
392 * Description:
393 * Remove and destroy one dev_info entry for @vendor, @model
394 * in list specified by @key.
395 *
396 * Returns: 0 OK, -error on failure.
397 **/
398int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
399{
400 struct scsi_dev_info_list *devinfo, *found = NULL;
401 struct scsi_dev_info_list_table *devinfo_table =
402 scsi_devinfo_lookup_by_key(key);
403
404 if (IS_ERR(devinfo_table))
405 return PTR_ERR(devinfo_table);
406
407 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
408 dev_info_list) {
409 if (devinfo->compatible) {
410 /*
411 * Behave like the older version of get_device_flags.
412 */
413 size_t max;
414 /*
415 * XXX why skip leading spaces? If an odd INQUIRY
416 * value, that should have been part of the
417 * scsi_static_device_list[] entry, such as " FOO"
418 * rather than "FOO". Since this code is already
419 * here, and we don't know what device it is
420 * trying to work with, leave it as-is.
421 */
422 max = 8; /* max length of vendor */
423 while ((max > 0) && *vendor == ' ') {
424 max--;
425 vendor++;
426 }
427 /*
428 * XXX removing the following strlen() would be
429 * good, using it means that for a an entry not in
430 * the list, we scan every byte of every vendor
431 * listed in scsi_static_device_list[], and never match
432 * a single one (and still have to compare at
433 * least the first byte of each vendor).
434 */
435 if (memcmp(devinfo->vendor, vendor,
436 min(max, strlen(devinfo->vendor))))
437 continue;
438 /*
439 * Skip spaces again.
440 */
441 max = 16; /* max length of model */
442 while ((max > 0) && *model == ' ') {
443 max--;
444 model++;
445 }
446 if (memcmp(devinfo->model, model,
447 min(max, strlen(devinfo->model))))
448 continue;
449 found = devinfo;
450 } else {
451 if (!memcmp(devinfo->vendor, vendor,
452 sizeof(devinfo->vendor)) &&
453 !memcmp(devinfo->model, model,
454 sizeof(devinfo->model)))
455 found = devinfo;
456 }
457 if (found)
458 break;
459 }
460
461 if (found) {
462 list_del(&found->dev_info_list);
463 kfree(found);
464 return 0;
465 }
466
467 return -ENOENT;
468}
469EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
470
471/**
472 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
473 * @dev_list: string of device flags to add
474 *
475 * Description:
476 * Parse dev_list, and add entries to the scsi_dev_info_list.
477 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
478 * dev_list is modified via strsep. Can be called for command line
479 * addition, for proc or mabye a sysfs interface.
480 *
481 * Returns: 0 if OK, -error on failure.
482 **/
483static int scsi_dev_info_list_add_str(char *dev_list)
484{
485 char *vendor, *model, *strflags, *next;
486 char *next_check;
487 int res = 0;
488
489 next = dev_list;
490 if (next && next[0] == '"') {
491 /*
492 * Ignore both the leading and trailing quote.
493 */
494 next++;
495 next_check = ",\"";
496 } else {
497 next_check = ",";
498 }
499
500 /*
501 * For the leading and trailing '"' case, the for loop comes
502 * through the last time with vendor[0] == '\0'.
503 */
504 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
505 && (res == 0); vendor = strsep(&next, ":")) {
506 strflags = NULL;
507 model = strsep(&next, ":");
508 if (model)
509 strflags = strsep(&next, next_check);
510 if (!model || !strflags) {
511 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
512 " '%s'\n", __func__, vendor, model,
513 strflags);
514 res = -EINVAL;
515 } else
516 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
517 model, strflags, 0);
518 }
519 return res;
520}
521
522/**
523 * get_device_flags - get device specific flags from the dynamic device list.
524 * @sdev: &scsi_device to get flags for
525 * @vendor: vendor name
526 * @model: model name
527 *
528 * Description:
529 * Search the global scsi_dev_info_list (specified by list zero)
530 * for an entry matching @vendor and @model, if found, return the
531 * matching flags value, else return the host or global default
532 * settings. Called during scan time.
533 **/
534int scsi_get_device_flags(struct scsi_device *sdev,
535 const unsigned char *vendor,
536 const unsigned char *model)
537{
538 return scsi_get_device_flags_keyed(sdev, vendor, model,
539 SCSI_DEVINFO_GLOBAL);
540}
541
542
543/**
544 * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list
545 * @sdev: &scsi_device to get flags for
546 * @vendor: vendor name
547 * @model: model name
548 * @key: list to look up
549 *
550 * Description:
551 * Search the scsi_dev_info_list specified by @key for an entry
552 * matching @vendor and @model, if found, return the matching
553 * flags value, else return the host or global default settings.
554 * Called during scan time.
555 **/
556int scsi_get_device_flags_keyed(struct scsi_device *sdev,
557 const unsigned char *vendor,
558 const unsigned char *model,
559 int key)
560{
561 struct scsi_dev_info_list *devinfo;
562 struct scsi_dev_info_list_table *devinfo_table;
563
564 devinfo_table = scsi_devinfo_lookup_by_key(key);
565
566 if (IS_ERR(devinfo_table))
567 return PTR_ERR(devinfo_table);
568
569 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
570 dev_info_list) {
571 if (devinfo->compatible) {
572 /*
573 * Behave like the older version of get_device_flags.
574 */
575 size_t max;
576 /*
577 * XXX why skip leading spaces? If an odd INQUIRY
578 * value, that should have been part of the
579 * scsi_static_device_list[] entry, such as " FOO"
580 * rather than "FOO". Since this code is already
581 * here, and we don't know what device it is
582 * trying to work with, leave it as-is.
583 */
584 max = 8; /* max length of vendor */
585 while ((max > 0) && *vendor == ' ') {
586 max--;
587 vendor++;
588 }
589 /*
590 * XXX removing the following strlen() would be
591 * good, using it means that for a an entry not in
592 * the list, we scan every byte of every vendor
593 * listed in scsi_static_device_list[], and never match
594 * a single one (and still have to compare at
595 * least the first byte of each vendor).
596 */
597 if (memcmp(devinfo->vendor, vendor,
598 min(max, strlen(devinfo->vendor))))
599 continue;
600 /*
601 * Skip spaces again.
602 */
603 max = 16; /* max length of model */
604 while ((max > 0) && *model == ' ') {
605 max--;
606 model++;
607 }
608 if (memcmp(devinfo->model, model,
609 min(max, strlen(devinfo->model))))
610 continue;
611 return devinfo->flags;
612 } else {
613 if (!memcmp(devinfo->vendor, vendor,
614 sizeof(devinfo->vendor)) &&
615 !memcmp(devinfo->model, model,
616 sizeof(devinfo->model)))
617 return devinfo->flags;
618 }
619 }
620 /* nothing found, return nothing */
621 if (key != SCSI_DEVINFO_GLOBAL)
622 return 0;
623
624 /* except for the global list, where we have an exception */
625 if (sdev->sdev_bflags)
626 return sdev->sdev_bflags;
627
628 return scsi_default_dev_flags;
629}
630EXPORT_SYMBOL(scsi_get_device_flags_keyed);
631
632#ifdef CONFIG_SCSI_PROC_FS
633struct double_list {
634 struct list_head *top;
635 struct list_head *bottom;
636};
637
638static int devinfo_seq_show(struct seq_file *m, void *v)
639{
640 struct double_list *dl = v;
641 struct scsi_dev_info_list_table *devinfo_table =
642 list_entry(dl->top, struct scsi_dev_info_list_table, node);
643 struct scsi_dev_info_list *devinfo =
644 list_entry(dl->bottom, struct scsi_dev_info_list,
645 dev_info_list);
646
647 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
648 devinfo_table->name)
649 seq_printf(m, "[%s]:\n", devinfo_table->name);
650
651 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
652 devinfo->vendor, devinfo->model, devinfo->flags);
653 return 0;
654}
655
656static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
657{
658 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
659 loff_t pos = *ppos;
660
661 if (!dl)
662 return NULL;
663
664 list_for_each(dl->top, &scsi_dev_info_list) {
665 struct scsi_dev_info_list_table *devinfo_table =
666 list_entry(dl->top, struct scsi_dev_info_list_table,
667 node);
668 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
669 if (pos-- == 0)
670 return dl;
671 }
672
673 kfree(dl);
674 return NULL;
675}
676
677static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
678{
679 struct double_list *dl = v;
680 struct scsi_dev_info_list_table *devinfo_table =
681 list_entry(dl->top, struct scsi_dev_info_list_table, node);
682
683 ++*ppos;
684 dl->bottom = dl->bottom->next;
685 while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
686 dl->top = dl->top->next;
687 if (dl->top == &scsi_dev_info_list) {
688 kfree(dl);
689 return NULL;
690 }
691 devinfo_table = list_entry(dl->top,
692 struct scsi_dev_info_list_table,
693 node);
694 dl->bottom = devinfo_table->scsi_dev_info_list.next;
695 }
696
697 return dl;
698}
699
700static void devinfo_seq_stop(struct seq_file *m, void *v)
701{
702 kfree(v);
703}
704
705static const struct seq_operations scsi_devinfo_seq_ops = {
706 .start = devinfo_seq_start,
707 .next = devinfo_seq_next,
708 .stop = devinfo_seq_stop,
709 .show = devinfo_seq_show,
710};
711
712static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
713{
714 return seq_open(file, &scsi_devinfo_seq_ops);
715}
716
717/*
718 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
719 *
720 * Description: Adds a black/white list entry for vendor and model with an
721 * integer value of flag to the scsi device info list.
722 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
723 */
724static ssize_t proc_scsi_devinfo_write(struct file *file,
725 const char __user *buf,
726 size_t length, loff_t *ppos)
727{
728 char *buffer;
729 ssize_t err = length;
730
731 if (!buf || length>PAGE_SIZE)
732 return -EINVAL;
733 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
734 return -ENOMEM;
735 if (copy_from_user(buffer, buf, length)) {
736 err =-EFAULT;
737 goto out;
738 }
739
740 if (length < PAGE_SIZE)
741 buffer[length] = '\0';
742 else if (buffer[PAGE_SIZE-1]) {
743 err = -EINVAL;
744 goto out;
745 }
746
747 scsi_dev_info_list_add_str(buffer);
748
749out:
750 free_page((unsigned long)buffer);
751 return err;
752}
753
754static const struct file_operations scsi_devinfo_proc_fops = {
755 .owner = THIS_MODULE,
756 .open = proc_scsi_devinfo_open,
757 .read = seq_read,
758 .write = proc_scsi_devinfo_write,
759 .llseek = seq_lseek,
760 .release = seq_release,
761};
762#endif /* CONFIG_SCSI_PROC_FS */
763
764module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
765MODULE_PARM_DESC(dev_flags,
766 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
767 " list entries for vendor and model with an integer value of flags"
768 " to the scsi device info list");
769
770module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
771MODULE_PARM_DESC(default_dev_flags,
772 "scsi default device flag integer value");
773
774/**
775 * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
776 **/
777void scsi_exit_devinfo(void)
778{
779#ifdef CONFIG_SCSI_PROC_FS
780 remove_proc_entry("scsi/device_info", NULL);
781#endif
782
783 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
784}
785
786/**
787 * scsi_dev_info_add_list - add a new devinfo list
788 * @key: key of the list to add
789 * @name: Name of the list to add (for /proc/scsi/device_info)
790 *
791 * Adds the requested list, returns zero on success, -EEXIST if the
792 * key is already registered to a list, or other error on failure.
793 */
794int scsi_dev_info_add_list(int key, const char *name)
795{
796 struct scsi_dev_info_list_table *devinfo_table =
797 scsi_devinfo_lookup_by_key(key);
798
799 if (!IS_ERR(devinfo_table))
800 /* list already exists */
801 return -EEXIST;
802
803 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
804
805 if (!devinfo_table)
806 return -ENOMEM;
807
808 INIT_LIST_HEAD(&devinfo_table->node);
809 INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
810 devinfo_table->name = name;
811 devinfo_table->key = key;
812 list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
813
814 return 0;
815}
816EXPORT_SYMBOL(scsi_dev_info_add_list);
817
818/**
819 * scsi_dev_info_remove_list - destroy an added devinfo list
820 * @key: key of the list to destroy
821 *
822 * Iterates over the entire list first, freeing all the values, then
823 * frees the list itself. Returns 0 on success or -EINVAL if the key
824 * can't be found.
825 */
826int scsi_dev_info_remove_list(int key)
827{
828 struct list_head *lh, *lh_next;
829 struct scsi_dev_info_list_table *devinfo_table =
830 scsi_devinfo_lookup_by_key(key);
831
832 if (IS_ERR(devinfo_table))
833 /* no such list */
834 return -EINVAL;
835
836 /* remove from the master list */
837 list_del(&devinfo_table->node);
838
839 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
840 struct scsi_dev_info_list *devinfo;
841
842 devinfo = list_entry(lh, struct scsi_dev_info_list,
843 dev_info_list);
844 kfree(devinfo);
845 }
846 kfree(devinfo_table);
847
848 return 0;
849}
850EXPORT_SYMBOL(scsi_dev_info_remove_list);
851
852/**
853 * scsi_init_devinfo - set up the dynamic device list.
854 *
855 * Description:
856 * Add command line entries from scsi_dev_flags, then add
857 * scsi_static_device_list entries to the scsi device info list.
858 */
859int __init scsi_init_devinfo(void)
860{
861#ifdef CONFIG_SCSI_PROC_FS
862 struct proc_dir_entry *p;
863#endif
864 int error, i;
865
866 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
867 if (error)
868 return error;
869
870 error = scsi_dev_info_list_add_str(scsi_dev_flags);
871 if (error)
872 goto out;
873
874 for (i = 0; scsi_static_device_list[i].vendor; i++) {
875 error = scsi_dev_info_list_add(1 /* compatibile */,
876 scsi_static_device_list[i].vendor,
877 scsi_static_device_list[i].model,
878 NULL,
879 scsi_static_device_list[i].flags);
880 if (error)
881 goto out;
882 }
883
884#ifdef CONFIG_SCSI_PROC_FS
885 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
886 if (!p) {
887 error = -ENOMEM;
888 goto out;
889 }
890#endif /* CONFIG_SCSI_PROC_FS */
891
892 out:
893 if (error)
894 scsi_exit_devinfo();
895 return error;
896}
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#include <linux/slab.h>
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 */
20struct 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
28struct 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
35
36static const char spaces[] = " "; /* 16 of them */
37static unsigned scsi_default_dev_flags;
38static LIST_HEAD(scsi_dev_info_list);
39static 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 */
50static 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 */
67 {"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */
68 {"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */
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},
123 {"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
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 */
128 {"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */
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},
139 {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN},
140 {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
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 */
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 */
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},
154 {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
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 */
162 {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
163 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
164 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
165 {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
166 {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
167 {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN},
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},
172 {"HITACHI", "DF400", "*", BLIST_REPORTLUN2},
173 {"HITACHI", "DF500", "*", BLIST_REPORTLUN2},
174 {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2},
175 {"HITACHI", "HUS1530", "*", BLIST_NO_DIF},
176 {"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2},
177 {"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
178 {"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
179 {"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
180 {"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
181 {"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
182 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
183 {"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
184 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
185 {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
186 {"HP", "C1557A", NULL, BLIST_FORCELUN},
187 {"HP", "C3323-300", "4269", BLIST_NOTQ},
188 {"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
189 {"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
190 {"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
191 {"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
192 {"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
193 {"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
194 {"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
195 {"HP", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
196 {"HP", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
197 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
198 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
199 {"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
200 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
201 {"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN},
202 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
203 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
204 {"INSITE", "I325VM", NULL, BLIST_KEY},
205 {"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC},
206 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
207 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
208 {"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES},
209 {"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES},
210 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
211 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
212 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
213 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
214 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
215 {"MICROP", "4110", NULL, BLIST_NOTQ},
216 {"MSFT", "Virtual HD", NULL, BLIST_NO_RSOC},
217 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
218 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
219 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
220 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
221 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
222 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
223 {"NETAPP", "LUN C-Mode", NULL, BLIST_SYNC_ALUA},
224 {"NETAPP", "INF-01-00", NULL, BLIST_SYNC_ALUA},
225 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
226 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
227 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
228 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
229 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
230 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
231 {"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC},
232 {"Promise", "", NULL, BLIST_SPARSELUN},
233 {"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024},
234 {"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024},
235 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
236 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
237 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
238 {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
239 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
240 {"SEAGATE", "ST900MM0006", NULL, BLIST_SKIP_VPD_PAGES},
241 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
242 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
243 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
244 {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
245 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
246 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
247 {"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
248 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
249 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
250 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
251 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
252 {"SUN", "T300", "*", BLIST_SPARSELUN},
253 {"SUN", "T4", "*", BLIST_SPARSELUN},
254 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
255 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
256 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
257 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
258 {"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */
259 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
260 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
261 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
262 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
263 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
264 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
265 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
266 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
267 { NULL, NULL, NULL, 0 },
268};
269
270static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
271{
272 struct scsi_dev_info_list_table *devinfo_table;
273 int found = 0;
274
275 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
276 if (devinfo_table->key == key) {
277 found = 1;
278 break;
279 }
280 if (!found)
281 return ERR_PTR(-EINVAL);
282
283 return devinfo_table;
284}
285
286/*
287 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
288 * devinfo vendor and model strings.
289 */
290static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
291 char *from, int compatible)
292{
293 size_t from_length;
294
295 from_length = strlen(from);
296 strncpy(to, from, min(to_length, from_length));
297 if (from_length < to_length) {
298 if (compatible) {
299 /*
300 * NUL terminate the string if it is short.
301 */
302 to[from_length] = '\0';
303 } else {
304 /*
305 * space pad the string if it is short.
306 */
307 strncpy(&to[from_length], spaces,
308 to_length - from_length);
309 }
310 }
311 if (from_length > to_length)
312 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
313 __func__, name, from);
314}
315
316/**
317 * scsi_dev_info_list_add - add one dev_info list entry.
318 * @compatible: if true, null terminate short strings. Otherwise space pad.
319 * @vendor: vendor string
320 * @model: model (product) string
321 * @strflags: integer string
322 * @flags: if strflags NULL, use this flag value
323 *
324 * Description:
325 * Create and add one dev_info entry for @vendor, @model, @strflags or
326 * @flag. If @compatible, add to the tail of the list, do not space
327 * pad, and set devinfo->compatible. The scsi_static_device_list entries
328 * are added with @compatible 1 and @clfags NULL.
329 *
330 * Returns: 0 OK, -error on failure.
331 **/
332static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
333 char *strflags, int flags)
334{
335 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
336 strflags, flags,
337 SCSI_DEVINFO_GLOBAL);
338}
339
340/**
341 * scsi_dev_info_list_add_keyed - add one dev_info list entry.
342 * @compatible: if true, null terminate short strings. Otherwise space pad.
343 * @vendor: vendor string
344 * @model: model (product) string
345 * @strflags: integer string
346 * @flags: if strflags NULL, use this flag value
347 * @key: specify list to use
348 *
349 * Description:
350 * Create and add one dev_info entry for @vendor, @model,
351 * @strflags or @flag in list specified by @key. If @compatible,
352 * add to the tail of the list, do not space pad, and set
353 * devinfo->compatible. The scsi_static_device_list entries are
354 * added with @compatible 1 and @clfags NULL.
355 *
356 * Returns: 0 OK, -error on failure.
357 **/
358int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
359 char *strflags, int flags, int key)
360{
361 struct scsi_dev_info_list *devinfo;
362 struct scsi_dev_info_list_table *devinfo_table =
363 scsi_devinfo_lookup_by_key(key);
364
365 if (IS_ERR(devinfo_table))
366 return PTR_ERR(devinfo_table);
367
368 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
369 if (!devinfo) {
370 printk(KERN_ERR "%s: no memory\n", __func__);
371 return -ENOMEM;
372 }
373
374 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
375 vendor, compatible);
376 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
377 model, compatible);
378
379 if (strflags)
380 devinfo->flags = simple_strtoul(strflags, NULL, 0);
381 else
382 devinfo->flags = flags;
383
384 devinfo->compatible = compatible;
385
386 if (compatible)
387 list_add_tail(&devinfo->dev_info_list,
388 &devinfo_table->scsi_dev_info_list);
389 else
390 list_add(&devinfo->dev_info_list,
391 &devinfo_table->scsi_dev_info_list);
392
393 return 0;
394}
395EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
396
397/**
398 * scsi_dev_info_list_find - find a matching dev_info list entry.
399 * @vendor: vendor string
400 * @model: model (product) string
401 * @key: specify list to use
402 *
403 * Description:
404 * Finds the first dev_info entry matching @vendor, @model
405 * in list specified by @key.
406 *
407 * Returns: pointer to matching entry, or ERR_PTR on failure.
408 **/
409static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
410 const char *model, int key)
411{
412 struct scsi_dev_info_list *devinfo;
413 struct scsi_dev_info_list_table *devinfo_table =
414 scsi_devinfo_lookup_by_key(key);
415 size_t vmax, mmax;
416 const char *vskip, *mskip;
417
418 if (IS_ERR(devinfo_table))
419 return (struct scsi_dev_info_list *) devinfo_table;
420
421 /* Prepare for "compatible" matches */
422
423 /*
424 * XXX why skip leading spaces? If an odd INQUIRY
425 * value, that should have been part of the
426 * scsi_static_device_list[] entry, such as " FOO"
427 * rather than "FOO". Since this code is already
428 * here, and we don't know what device it is
429 * trying to work with, leave it as-is.
430 */
431 vmax = 8; /* max length of vendor */
432 vskip = vendor;
433 while (vmax > 0 && *vskip == ' ') {
434 vmax--;
435 vskip++;
436 }
437 /* Also skip trailing spaces */
438 while (vmax > 0 && vskip[vmax - 1] == ' ')
439 --vmax;
440
441 mmax = 16; /* max length of model */
442 mskip = model;
443 while (mmax > 0 && *mskip == ' ') {
444 mmax--;
445 mskip++;
446 }
447 while (mmax > 0 && mskip[mmax - 1] == ' ')
448 --mmax;
449
450 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
451 dev_info_list) {
452 if (devinfo->compatible) {
453 /*
454 * Behave like the older version of get_device_flags.
455 */
456 if (memcmp(devinfo->vendor, vskip, vmax) ||
457 devinfo->vendor[vmax])
458 continue;
459 if (memcmp(devinfo->model, mskip, mmax) ||
460 devinfo->model[mmax])
461 continue;
462 return devinfo;
463 } else {
464 if (!memcmp(devinfo->vendor, vendor,
465 sizeof(devinfo->vendor)) &&
466 !memcmp(devinfo->model, model,
467 sizeof(devinfo->model)))
468 return devinfo;
469 }
470 }
471
472 return ERR_PTR(-ENOENT);
473}
474
475/**
476 * scsi_dev_info_list_del_keyed - remove one dev_info list entry.
477 * @vendor: vendor string
478 * @model: model (product) string
479 * @key: specify list to use
480 *
481 * Description:
482 * Remove and destroy one dev_info entry for @vendor, @model
483 * in list specified by @key.
484 *
485 * Returns: 0 OK, -error on failure.
486 **/
487int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
488{
489 struct scsi_dev_info_list *found;
490
491 found = scsi_dev_info_list_find(vendor, model, key);
492 if (IS_ERR(found))
493 return PTR_ERR(found);
494
495 list_del(&found->dev_info_list);
496 kfree(found);
497 return 0;
498}
499EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
500
501/**
502 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
503 * @dev_list: string of device flags to add
504 *
505 * Description:
506 * Parse dev_list, and add entries to the scsi_dev_info_list.
507 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
508 * dev_list is modified via strsep. Can be called for command line
509 * addition, for proc or mabye a sysfs interface.
510 *
511 * Returns: 0 if OK, -error on failure.
512 **/
513static int scsi_dev_info_list_add_str(char *dev_list)
514{
515 char *vendor, *model, *strflags, *next;
516 char *next_check;
517 int res = 0;
518
519 next = dev_list;
520 if (next && next[0] == '"') {
521 /*
522 * Ignore both the leading and trailing quote.
523 */
524 next++;
525 next_check = ",\"";
526 } else {
527 next_check = ",";
528 }
529
530 /*
531 * For the leading and trailing '"' case, the for loop comes
532 * through the last time with vendor[0] == '\0'.
533 */
534 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
535 && (res == 0); vendor = strsep(&next, ":")) {
536 strflags = NULL;
537 model = strsep(&next, ":");
538 if (model)
539 strflags = strsep(&next, next_check);
540 if (!model || !strflags) {
541 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
542 " '%s'\n", __func__, vendor, model,
543 strflags);
544 res = -EINVAL;
545 } else
546 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
547 model, strflags, 0);
548 }
549 return res;
550}
551
552/**
553 * get_device_flags - get device specific flags from the dynamic device list.
554 * @sdev: &scsi_device to get flags for
555 * @vendor: vendor name
556 * @model: model name
557 *
558 * Description:
559 * Search the global scsi_dev_info_list (specified by list zero)
560 * for an entry matching @vendor and @model, if found, return the
561 * matching flags value, else return the host or global default
562 * settings. Called during scan time.
563 **/
564int scsi_get_device_flags(struct scsi_device *sdev,
565 const unsigned char *vendor,
566 const unsigned char *model)
567{
568 return scsi_get_device_flags_keyed(sdev, vendor, model,
569 SCSI_DEVINFO_GLOBAL);
570}
571
572
573/**
574 * scsi_get_device_flags_keyed - get device specific flags from the dynamic device list
575 * @sdev: &scsi_device to get flags for
576 * @vendor: vendor name
577 * @model: model name
578 * @key: list to look up
579 *
580 * Description:
581 * Search the scsi_dev_info_list specified by @key for an entry
582 * matching @vendor and @model, if found, return the matching
583 * flags value, else return the host or global default settings.
584 * Called during scan time.
585 **/
586int scsi_get_device_flags_keyed(struct scsi_device *sdev,
587 const unsigned char *vendor,
588 const unsigned char *model,
589 int key)
590{
591 struct scsi_dev_info_list *devinfo;
592 int err;
593
594 devinfo = scsi_dev_info_list_find(vendor, model, key);
595 if (!IS_ERR(devinfo))
596 return devinfo->flags;
597
598 err = PTR_ERR(devinfo);
599 if (err != -ENOENT)
600 return err;
601
602 /* nothing found, return nothing */
603 if (key != SCSI_DEVINFO_GLOBAL)
604 return 0;
605
606 /* except for the global list, where we have an exception */
607 if (sdev->sdev_bflags)
608 return sdev->sdev_bflags;
609
610 return scsi_default_dev_flags;
611}
612EXPORT_SYMBOL(scsi_get_device_flags_keyed);
613
614#ifdef CONFIG_SCSI_PROC_FS
615struct double_list {
616 struct list_head *top;
617 struct list_head *bottom;
618};
619
620static int devinfo_seq_show(struct seq_file *m, void *v)
621{
622 struct double_list *dl = v;
623 struct scsi_dev_info_list_table *devinfo_table =
624 list_entry(dl->top, struct scsi_dev_info_list_table, node);
625 struct scsi_dev_info_list *devinfo =
626 list_entry(dl->bottom, struct scsi_dev_info_list,
627 dev_info_list);
628
629 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
630 devinfo_table->name)
631 seq_printf(m, "[%s]:\n", devinfo_table->name);
632
633 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
634 devinfo->vendor, devinfo->model, devinfo->flags);
635 return 0;
636}
637
638static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
639{
640 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
641 loff_t pos = *ppos;
642
643 if (!dl)
644 return NULL;
645
646 list_for_each(dl->top, &scsi_dev_info_list) {
647 struct scsi_dev_info_list_table *devinfo_table =
648 list_entry(dl->top, struct scsi_dev_info_list_table,
649 node);
650 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
651 if (pos-- == 0)
652 return dl;
653 }
654
655 kfree(dl);
656 return NULL;
657}
658
659static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
660{
661 struct double_list *dl = v;
662 struct scsi_dev_info_list_table *devinfo_table =
663 list_entry(dl->top, struct scsi_dev_info_list_table, node);
664
665 ++*ppos;
666 dl->bottom = dl->bottom->next;
667 while (&devinfo_table->scsi_dev_info_list == dl->bottom) {
668 dl->top = dl->top->next;
669 if (dl->top == &scsi_dev_info_list) {
670 kfree(dl);
671 return NULL;
672 }
673 devinfo_table = list_entry(dl->top,
674 struct scsi_dev_info_list_table,
675 node);
676 dl->bottom = devinfo_table->scsi_dev_info_list.next;
677 }
678
679 return dl;
680}
681
682static void devinfo_seq_stop(struct seq_file *m, void *v)
683{
684 kfree(v);
685}
686
687static const struct seq_operations scsi_devinfo_seq_ops = {
688 .start = devinfo_seq_start,
689 .next = devinfo_seq_next,
690 .stop = devinfo_seq_stop,
691 .show = devinfo_seq_show,
692};
693
694static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
695{
696 return seq_open(file, &scsi_devinfo_seq_ops);
697}
698
699/*
700 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
701 *
702 * Description: Adds a black/white list entry for vendor and model with an
703 * integer value of flag to the scsi device info list.
704 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
705 */
706static ssize_t proc_scsi_devinfo_write(struct file *file,
707 const char __user *buf,
708 size_t length, loff_t *ppos)
709{
710 char *buffer;
711 ssize_t err = length;
712
713 if (!buf || length>PAGE_SIZE)
714 return -EINVAL;
715 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
716 return -ENOMEM;
717 if (copy_from_user(buffer, buf, length)) {
718 err =-EFAULT;
719 goto out;
720 }
721
722 if (length < PAGE_SIZE)
723 buffer[length] = '\0';
724 else if (buffer[PAGE_SIZE-1]) {
725 err = -EINVAL;
726 goto out;
727 }
728
729 scsi_dev_info_list_add_str(buffer);
730
731out:
732 free_page((unsigned long)buffer);
733 return err;
734}
735
736static const struct file_operations scsi_devinfo_proc_fops = {
737 .owner = THIS_MODULE,
738 .open = proc_scsi_devinfo_open,
739 .read = seq_read,
740 .write = proc_scsi_devinfo_write,
741 .llseek = seq_lseek,
742 .release = seq_release,
743};
744#endif /* CONFIG_SCSI_PROC_FS */
745
746module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
747MODULE_PARM_DESC(dev_flags,
748 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
749 " list entries for vendor and model with an integer value of flags"
750 " to the scsi device info list");
751
752module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
753MODULE_PARM_DESC(default_dev_flags,
754 "scsi default device flag integer value");
755
756/**
757 * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
758 **/
759void scsi_exit_devinfo(void)
760{
761#ifdef CONFIG_SCSI_PROC_FS
762 remove_proc_entry("scsi/device_info", NULL);
763#endif
764
765 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
766}
767
768/**
769 * scsi_dev_info_add_list - add a new devinfo list
770 * @key: key of the list to add
771 * @name: Name of the list to add (for /proc/scsi/device_info)
772 *
773 * Adds the requested list, returns zero on success, -EEXIST if the
774 * key is already registered to a list, or other error on failure.
775 */
776int scsi_dev_info_add_list(int key, const char *name)
777{
778 struct scsi_dev_info_list_table *devinfo_table =
779 scsi_devinfo_lookup_by_key(key);
780
781 if (!IS_ERR(devinfo_table))
782 /* list already exists */
783 return -EEXIST;
784
785 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
786
787 if (!devinfo_table)
788 return -ENOMEM;
789
790 INIT_LIST_HEAD(&devinfo_table->node);
791 INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list);
792 devinfo_table->name = name;
793 devinfo_table->key = key;
794 list_add_tail(&devinfo_table->node, &scsi_dev_info_list);
795
796 return 0;
797}
798EXPORT_SYMBOL(scsi_dev_info_add_list);
799
800/**
801 * scsi_dev_info_remove_list - destroy an added devinfo list
802 * @key: key of the list to destroy
803 *
804 * Iterates over the entire list first, freeing all the values, then
805 * frees the list itself. Returns 0 on success or -EINVAL if the key
806 * can't be found.
807 */
808int scsi_dev_info_remove_list(int key)
809{
810 struct list_head *lh, *lh_next;
811 struct scsi_dev_info_list_table *devinfo_table =
812 scsi_devinfo_lookup_by_key(key);
813
814 if (IS_ERR(devinfo_table))
815 /* no such list */
816 return -EINVAL;
817
818 /* remove from the master list */
819 list_del(&devinfo_table->node);
820
821 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
822 struct scsi_dev_info_list *devinfo;
823
824 devinfo = list_entry(lh, struct scsi_dev_info_list,
825 dev_info_list);
826 kfree(devinfo);
827 }
828 kfree(devinfo_table);
829
830 return 0;
831}
832EXPORT_SYMBOL(scsi_dev_info_remove_list);
833
834/**
835 * scsi_init_devinfo - set up the dynamic device list.
836 *
837 * Description:
838 * Add command line entries from scsi_dev_flags, then add
839 * scsi_static_device_list entries to the scsi device info list.
840 */
841int __init scsi_init_devinfo(void)
842{
843#ifdef CONFIG_SCSI_PROC_FS
844 struct proc_dir_entry *p;
845#endif
846 int error, i;
847
848 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
849 if (error)
850 return error;
851
852 error = scsi_dev_info_list_add_str(scsi_dev_flags);
853 if (error)
854 goto out;
855
856 for (i = 0; scsi_static_device_list[i].vendor; i++) {
857 error = scsi_dev_info_list_add(1 /* compatibile */,
858 scsi_static_device_list[i].vendor,
859 scsi_static_device_list[i].model,
860 NULL,
861 scsi_static_device_list[i].flags);
862 if (error)
863 goto out;
864 }
865
866#ifdef CONFIG_SCSI_PROC_FS
867 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
868 if (!p) {
869 error = -ENOMEM;
870 goto out;
871 }
872#endif /* CONFIG_SCSI_PROC_FS */
873
874 out:
875 if (error)
876 scsi_exit_devinfo();
877 return error;
878}