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>
11 #include <scsi/scsi_device.h>
12 #include <scsi/scsi_devinfo.h>
14 #include "scsi_priv.h"
18 * scsi_dev_info_list: structure to hold black/white listed devices.
20 struct scsi_dev_info_list {
21 struct list_head dev_info_list;
25 unsigned compatible; /* for use with scsi_static_device_list entries */
28 struct scsi_dev_info_list_table {
29 struct list_head node; /* our node for being on the master list */
30 struct list_head scsi_dev_info_list; /* head of dev info list */
31 const char *name; /* name of list for /proc (NULL for global) */
32 int key; /* unique numeric identifier */
36 static const char spaces[] = " "; /* 16 of them */
37 static unsigned scsi_default_dev_flags;
38 static LIST_HEAD(scsi_dev_info_list);
39 static char scsi_dev_flags[256];
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.
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.
53 char *revision; /* revision known to be bad, unused */
55 } scsi_static_device_list[] __initdata = {
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.
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 */
82 * The following causes a failed REQUEST SENSE on lun 1 for
83 * aha152x controller, which causes SCSI code to reset bus.
85 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
87 * The following causes a failed REQUEST SENSE on lun 1 for
88 * aha152x controller, which causes SCSI code to reset bus.
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 */
101 * The following causes a failed REQUEST SENSE on lun 1 for
102 * seagate controller, which causes SCSI code to reset bus.
104 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
105 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */
107 * The following causes a failed REQUEST SENSE on lun 1 for
108 * seagate controller, which causes SCSI code to reset bus.
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 */
131 * Other types of devices that have special flags.
132 * Note that all USB devices should have the BLIST_INQUIRY_36 flag.
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 },
270 static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key)
272 struct scsi_dev_info_list_table *devinfo_table;
275 list_for_each_entry(devinfo_table, &scsi_dev_info_list, node)
276 if (devinfo_table->key == key) {
281 return ERR_PTR(-EINVAL);
283 return devinfo_table;
287 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
288 * devinfo vendor and model strings.
290 static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
291 char *from, int compatible)
295 from_length = strlen(from);
296 strncpy(to, from, min(to_length, from_length));
297 if (from_length < to_length) {
300 * NUL terminate the string if it is short.
302 to[from_length] = '\0';
305 * space pad the string if it is short.
307 strncpy(&to[from_length], spaces,
308 to_length - from_length);
311 if (from_length > to_length)
312 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
313 __func__, name, from);
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
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.
330 * Returns: 0 OK, -error on failure.
332 static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
333 char *strflags, int flags)
335 return scsi_dev_info_list_add_keyed(compatible, vendor, model,
337 SCSI_DEVINFO_GLOBAL);
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
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.
356 * Returns: 0 OK, -error on failure.
358 int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model,
359 char *strflags, int flags, int key)
361 struct scsi_dev_info_list *devinfo;
362 struct scsi_dev_info_list_table *devinfo_table =
363 scsi_devinfo_lookup_by_key(key);
365 if (IS_ERR(devinfo_table))
366 return PTR_ERR(devinfo_table);
368 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
370 printk(KERN_ERR "%s: no memory\n", __func__);
374 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
376 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
380 devinfo->flags = simple_strtoul(strflags, NULL, 0);
382 devinfo->flags = flags;
384 devinfo->compatible = compatible;
387 list_add_tail(&devinfo->dev_info_list,
388 &devinfo_table->scsi_dev_info_list);
390 list_add(&devinfo->dev_info_list,
391 &devinfo_table->scsi_dev_info_list);
395 EXPORT_SYMBOL(scsi_dev_info_list_add_keyed);
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
404 * Finds the first dev_info entry matching @vendor, @model
405 * in list specified by @key.
407 * Returns: pointer to matching entry, or ERR_PTR on failure.
409 static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor,
410 const char *model, int key)
412 struct scsi_dev_info_list *devinfo;
413 struct scsi_dev_info_list_table *devinfo_table =
414 scsi_devinfo_lookup_by_key(key);
416 const char *vskip, *mskip;
418 if (IS_ERR(devinfo_table))
419 return (struct scsi_dev_info_list *) devinfo_table;
421 /* Prepare for "compatible" matches */
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.
431 vmax = 8; /* max length of vendor */
433 while (vmax > 0 && *vskip == ' ') {
437 /* Also skip trailing spaces */
438 while (vmax > 0 && vskip[vmax - 1] == ' ')
441 mmax = 16; /* max length of model */
443 while (mmax > 0 && *mskip == ' ') {
447 while (mmax > 0 && mskip[mmax - 1] == ' ')
450 list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list,
452 if (devinfo->compatible) {
454 * Behave like the older version of get_device_flags.
456 if (memcmp(devinfo->vendor, vskip, vmax) ||
457 devinfo->vendor[vmax])
459 if (memcmp(devinfo->model, mskip, mmax) ||
460 devinfo->model[mmax])
464 if (!memcmp(devinfo->vendor, vendor,
465 sizeof(devinfo->vendor)) &&
466 !memcmp(devinfo->model, model,
467 sizeof(devinfo->model)))
472 return ERR_PTR(-ENOENT);
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
482 * Remove and destroy one dev_info entry for @vendor, @model
483 * in list specified by @key.
485 * Returns: 0 OK, -error on failure.
487 int scsi_dev_info_list_del_keyed(char *vendor, char *model, int key)
489 struct scsi_dev_info_list *found;
491 found = scsi_dev_info_list_find(vendor, model, key);
493 return PTR_ERR(found);
495 list_del(&found->dev_info_list);
499 EXPORT_SYMBOL(scsi_dev_info_list_del_keyed);
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
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.
511 * Returns: 0 if OK, -error on failure.
513 static int scsi_dev_info_list_add_str(char *dev_list)
515 char *vendor, *model, *strflags, *next;
520 if (next && next[0] == '"') {
522 * Ignore both the leading and trailing quote.
531 * For the leading and trailing '"' case, the for loop comes
532 * through the last time with vendor[0] == '\0'.
534 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
535 && (res == 0); vendor = strsep(&next, ":")) {
537 model = strsep(&next, ":");
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,
546 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
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
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.
564 int scsi_get_device_flags(struct scsi_device *sdev,
565 const unsigned char *vendor,
566 const unsigned char *model)
568 return scsi_get_device_flags_keyed(sdev, vendor, model,
569 SCSI_DEVINFO_GLOBAL);
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
578 * @key: list to look up
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.
586 int scsi_get_device_flags_keyed(struct scsi_device *sdev,
587 const unsigned char *vendor,
588 const unsigned char *model,
591 struct scsi_dev_info_list *devinfo;
594 devinfo = scsi_dev_info_list_find(vendor, model, key);
595 if (!IS_ERR(devinfo))
596 return devinfo->flags;
598 err = PTR_ERR(devinfo);
602 /* nothing found, return nothing */
603 if (key != SCSI_DEVINFO_GLOBAL)
606 /* except for the global list, where we have an exception */
607 if (sdev->sdev_bflags)
608 return sdev->sdev_bflags;
610 return scsi_default_dev_flags;
612 EXPORT_SYMBOL(scsi_get_device_flags_keyed);
614 #ifdef CONFIG_SCSI_PROC_FS
616 struct list_head *top;
617 struct list_head *bottom;
620 static int devinfo_seq_show(struct seq_file *m, void *v)
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,
629 if (devinfo_table->scsi_dev_info_list.next == dl->bottom &&
631 seq_printf(m, "[%s]:\n", devinfo_table->name);
633 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
634 devinfo->vendor, devinfo->model, devinfo->flags);
638 static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos)
640 struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL);
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,
650 list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list)
659 static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos)
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);
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) {
673 devinfo_table = list_entry(dl->top,
674 struct scsi_dev_info_list_table,
676 dl->bottom = devinfo_table->scsi_dev_info_list.next;
682 static void devinfo_seq_stop(struct seq_file *m, void *v)
687 static 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,
694 static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
696 return seq_open(file, &scsi_devinfo_seq_ops);
700 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
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
706 static ssize_t proc_scsi_devinfo_write(struct file *file,
707 const char __user *buf,
708 size_t length, loff_t *ppos)
711 ssize_t err = length;
713 if (!buf || length>PAGE_SIZE)
715 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
717 if (copy_from_user(buffer, buf, length)) {
722 if (length < PAGE_SIZE)
723 buffer[length] = '\0';
724 else if (buffer[PAGE_SIZE-1]) {
729 scsi_dev_info_list_add_str(buffer);
732 free_page((unsigned long)buffer);
736 static const struct file_operations scsi_devinfo_proc_fops = {
737 .owner = THIS_MODULE,
738 .open = proc_scsi_devinfo_open,
740 .write = proc_scsi_devinfo_write,
742 .release = seq_release,
744 #endif /* CONFIG_SCSI_PROC_FS */
746 module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
747 MODULE_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");
752 module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
753 MODULE_PARM_DESC(default_dev_flags,
754 "scsi default device flag integer value");
757 * scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list
759 void scsi_exit_devinfo(void)
761 #ifdef CONFIG_SCSI_PROC_FS
762 remove_proc_entry("scsi/device_info", NULL);
765 scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL);
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)
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.
776 int scsi_dev_info_add_list(int key, const char *name)
778 struct scsi_dev_info_list_table *devinfo_table =
779 scsi_devinfo_lookup_by_key(key);
781 if (!IS_ERR(devinfo_table))
782 /* list already exists */
785 devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL);
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);
798 EXPORT_SYMBOL(scsi_dev_info_add_list);
801 * scsi_dev_info_remove_list - destroy an added devinfo list
802 * @key: key of the list to destroy
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
808 int scsi_dev_info_remove_list(int key)
810 struct list_head *lh, *lh_next;
811 struct scsi_dev_info_list_table *devinfo_table =
812 scsi_devinfo_lookup_by_key(key);
814 if (IS_ERR(devinfo_table))
818 /* remove from the master list */
819 list_del(&devinfo_table->node);
821 list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) {
822 struct scsi_dev_info_list *devinfo;
824 devinfo = list_entry(lh, struct scsi_dev_info_list,
828 kfree(devinfo_table);
832 EXPORT_SYMBOL(scsi_dev_info_remove_list);
835 * scsi_init_devinfo - set up the dynamic device list.
838 * Add command line entries from scsi_dev_flags, then add
839 * scsi_static_device_list entries to the scsi device info list.
841 int __init scsi_init_devinfo(void)
843 #ifdef CONFIG_SCSI_PROC_FS
844 struct proc_dir_entry *p;
848 error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL);
852 error = scsi_dev_info_list_add_str(scsi_dev_flags);
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,
861 scsi_static_device_list[i].flags);
866 #ifdef CONFIG_SCSI_PROC_FS
867 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
872 #endif /* CONFIG_SCSI_PROC_FS */