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 <scsi/scsi_devinfo.h>
13 #include "scsi_priv.h"
16 * scsi_dev_info_list: structure to hold black/white listed devices.
18 struct scsi_dev_info_list {
19 struct list_head dev_info_list;
23 unsigned compatible; /* for use with scsi_static_device_list entries */
27 static const char spaces[] = " "; /* 16 of them */
28 static unsigned scsi_default_dev_flags;
29 static LIST_HEAD(scsi_dev_info_list);
30 static __init char scsi_dev_flags[256];
33 * scsi_static_device_list: deprecated list of devices that require
34 * settings that differ from the default, includes black-listed (broken)
35 * devices. The entries here are added to the tail of scsi_dev_info_list
36 * via scsi_dev_info_list_init.
38 * Do not add to this list, use the command line or proc interface to add
39 * to the scsi_dev_info_list. This table will eventually go away.
44 char *revision; /* revision known to be bad, unused */
46 } scsi_static_device_list[] __initdata = {
48 * The following devices are known not to tolerate a lun != 0 scan
49 * for one reason or another. Some will respond to all luns,
50 * others will lock up.
52 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */
53 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */
54 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */
55 {"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */
56 {"HITACHI", "DK312C", "CM81", BLIST_NOLUN}, /* responds to all lun */
57 {"HITACHI", "DK314C", "CR21", BLIST_NOLUN}, /* responds to all lun */
58 {"IMS", "CDD521/10", "2.06", BLIST_NOLUN}, /* locks up */
59 {"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN}, /* locks up */
60 {"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN}, /* locks up */
61 {"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN}, /* locks up */
62 {"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN}, /* locks up */
63 {"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN}, /* locks up */
64 {"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN}, /* responds to all lun */
65 {"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */
66 {"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN}, /* responds to all lun */
67 {"RODIME", "RO3000S", "2.33", BLIST_NOLUN}, /* locks up */
68 {"SUN", "SENA", NULL, BLIST_NOLUN}, /* responds to all luns */
70 * The following causes a failed REQUEST SENSE on lun 1 for
71 * aha152x controller, which causes SCSI code to reset bus.
73 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
75 * The following causes a failed REQUEST SENSE on lun 1 for
76 * aha152x controller, which causes SCSI code to reset bus.
78 {"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
79 {"SEAGATE", "ST296", "921", BLIST_NOLUN}, /* responds to all lun */
80 {"SEAGATE", "ST1581", "6538", BLIST_NOLUN}, /* responds to all lun */
81 {"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN},
82 {"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN},
83 {"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN},
84 {"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN},
85 {"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN}, /* locks up */
86 {"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN}, /* locks up */
88 * The following causes a failed REQUEST SENSE on lun 1 for
89 * seagate controller, which causes SCSI code to reset bus.
91 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
92 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */
94 * The following causes a failed REQUEST SENSE on lun 1 for
95 * seagate controller, which causes SCSI code to reset bus.
97 {"HP", "C1750A", "3226", BLIST_NOLUN}, /* scanjet iic */
98 {"HP", "C1790A", "", BLIST_NOLUN}, /* scanjet iip */
99 {"HP", "C2500A", "", BLIST_NOLUN}, /* scanjet iicx */
100 {"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN}, /* locks up */
101 {"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN}, /* responds to all lun */
102 {"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN}, /* locks up */
103 {"NEC", "D3856", "0009", BLIST_NOLUN},
104 {"QUANTUM", "LPS525S", "3110", BLIST_NOLUN}, /* locks up */
105 {"QUANTUM", "PD1225S", "3110", BLIST_NOLUN}, /* locks up */
106 {"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN}, /* locks up */
107 {"RELISYS", "Scorpio", NULL, BLIST_NOLUN}, /* responds to all lun */
108 {"SANKYO", "CP525", "6.64", BLIST_NOLUN}, /* causes failed REQ SENSE, extra reset */
109 {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
110 {"YAMAHA", "CDR100", "1.00", BLIST_NOLUN}, /* locks up */
111 {"YAMAHA", "CDR102", "1.00", BLIST_NOLUN}, /* locks up */
112 {"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN}, /* locks up */
113 {"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN}, /* locks up */
116 * Other types of devices that have special flags.
118 {"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
119 {"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
120 {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_SPARSELUN},
121 {"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
122 {"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */
123 {"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */
124 {"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */
125 {"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN},
126 {"COMPAQ", "CR3500", NULL, BLIST_FORCELUN},
127 {"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
128 {"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
129 {"COMPAQ", "HSV110", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
130 {"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN},
131 {"DEC", "HSG80", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
132 {"DELL", "PV660F", NULL, BLIST_SPARSELUN},
133 {"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN},
134 {"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */
135 {"DELL", "PV530F", NULL, BLIST_SPARSELUN},
136 {"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
137 {"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, storage on LUN 0 */
138 {"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, no storage on LUN 0 */
139 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
140 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
141 {"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
142 {"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN},
143 {"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN},
144 {"HITACHI", "DF400", "*", BLIST_SPARSELUN},
145 {"HITACHI", "DF500", "*", BLIST_SPARSELUN},
146 {"HITACHI", "DF600", "*", BLIST_SPARSELUN},
147 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
148 {"HP", "OPEN-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP XP Arrays */
149 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
150 {"HP", "HSV100", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
151 {"HP", "C1557A", NULL, BLIST_FORCELUN},
152 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
153 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
154 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
155 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
156 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
157 {"INSITE", "I325VM", NULL, BLIST_KEY},
158 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
159 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
160 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
161 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
162 {"MICROP", "4110", NULL, BLIST_NOTQ},
163 {"MYLEX", "DACARMRB", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
164 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
165 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
166 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
167 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
168 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
169 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
170 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
171 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
172 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
173 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
174 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
175 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
176 {"SGI", "TP9100", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
177 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN},
178 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
179 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
180 {"SUN", "T300", "*", BLIST_SPARSELUN},
181 {"SUN", "T4", "*", BLIST_SPARSELUN},
182 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
183 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
184 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
185 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
186 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
187 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
188 { NULL, NULL, NULL, 0 },
192 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
193 * devinfo vendor and model strings.
195 static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
196 char *from, int compatible)
200 from_length = strlen(from);
201 strncpy(to, from, min(to_length, from_length));
202 if (from_length < to_length) {
205 * NUL terminate the string if it is short.
207 to[from_length] = '\0';
210 * space pad the string if it is short.
212 strncpy(&to[from_length], spaces,
213 to_length - from_length);
216 if (from_length > to_length)
217 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
218 __FUNCTION__, name, from);
222 * scsi_dev_info_list_add: add one dev_info list entry.
223 * @vendor: vendor string
224 * @model: model (product) string
225 * @strflags: integer string
226 * @flag: if strflags NULL, use this flag value
229 * Create and add one dev_info entry for @vendor, @model, @strflags or
230 * @flag. If @compatible, add to the tail of the list, do not space
231 * pad, and set devinfo->compatible. The scsi_static_device_list entries
232 * are added with @compatible 1 and @clfags NULL.
234 * Returns: 0 OK, -error on failure.
236 static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
237 char *strflags, int flags)
239 struct scsi_dev_info_list *devinfo;
241 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
243 printk(KERN_ERR "%s: no memory\n", __FUNCTION__);
247 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
249 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
253 devinfo->flags = simple_strtoul(strflags, NULL, 0);
255 devinfo->flags = flags;
257 devinfo->compatible = compatible;
260 list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
262 list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
268 * scsi_dev_info_list_add_str: parse dev_list and add to the
269 * scsi_dev_info_list.
270 * @dev_list: string of device flags to add
273 * Parse dev_list, and add entries to the scsi_dev_info_list.
274 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
275 * dev_list is modified via strsep. Can be called for command line
276 * addition, for proc or mabye a sysfs interface.
278 * Returns: 0 if OK, -error on failure.
280 static int scsi_dev_info_list_add_str(char *dev_list)
282 char *vendor, *model, *strflags, *next;
287 if (next && next[0] == '"') {
289 * Ignore both the leading and trailing quote.
298 * For the leading and trailing '"' case, the for loop comes
299 * through the last time with vendor[0] == '\0'.
301 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
302 && (res == 0); vendor = strsep(&next, ":")) {
304 model = strsep(&next, ":");
306 strflags = strsep(&next, next_check);
307 if (!model || !strflags) {
308 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
309 " '%s'\n", __FUNCTION__, vendor, model,
313 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
320 * get_device_flags - get device specific flags from the dynamic device
321 * list. Called during scan time.
322 * @vendor: vendor name
326 * Search the scsi_dev_info_list for an entry matching @vendor and
327 * @model, if found, return the matching flags value, else return
328 * the host or global default settings.
330 int scsi_get_device_flags(struct scsi_device *sdev, unsigned char *vendor,
331 unsigned char *model)
333 struct scsi_dev_info_list *devinfo;
336 bflags = sdev->sdev_bflags;
338 bflags = scsi_default_dev_flags;
340 list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
341 if (devinfo->compatible) {
343 * Behave like the older version of get_device_flags.
347 * XXX why skip leading spaces? If an odd INQUIRY
348 * value, that should have been part of the
349 * scsi_static_device_list[] entry, such as " FOO"
350 * rather than "FOO". Since this code is already
351 * here, and we don't know what device it is
352 * trying to work with, leave it as-is.
354 max = 8; /* max length of vendor */
355 while ((max > 0) && *vendor == ' ') {
360 * XXX removing the following strlen() would be
361 * good, using it means that for a an entry not in
362 * the list, we scan every byte of every vendor
363 * listed in scsi_static_device_list[], and never match
364 * a single one (and still have to compare at
365 * least the first byte of each vendor).
367 if (memcmp(devinfo->vendor, vendor,
368 min(max, strlen(devinfo->vendor))))
373 max = 16; /* max length of model */
374 while ((max > 0) && *model == ' ') {
378 if (memcmp(devinfo->model, model,
379 min(max, strlen(devinfo->model))))
381 return devinfo->flags;
383 if (!memcmp(devinfo->vendor, vendor,
384 sizeof(devinfo->vendor)) &&
385 !memcmp(devinfo->model, model,
386 sizeof(devinfo->model)))
387 return devinfo->flags;
393 #ifdef CONFIG_SCSI_PROC_FS
395 * proc_scsi_dev_info_read: dump the scsi_dev_info_list via
396 * /proc/scsi/device_info
398 static int proc_scsi_devinfo_read(char *buffer, char **start,
399 off_t offset, int length)
401 struct scsi_dev_info_list *devinfo;
406 list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
407 size = sprintf(buffer + len, "'%.8s' '%.16s' 0x%x\n",
408 devinfo->vendor, devinfo->model, devinfo->flags);
415 if (pos > offset + length)
420 *start = buffer + (offset - begin); /* Start of wanted data */
421 len -= (offset - begin); /* Start slop */
423 len = length; /* Ending slop */
428 * proc_scsi_dev_info_write: allow additions to the scsi_dev_info_list via
431 * Use: echo "vendor:model:flag" > /proc/scsi/device_info
433 * To add a black/white list entry for vendor and model with an integer
434 * value of flag to the scsi device info list.
436 static int proc_scsi_devinfo_write(struct file *file, const char __user *buf,
437 unsigned long length, void *data)
442 if (!buf || length>PAGE_SIZE)
444 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
446 if (copy_from_user(buffer, buf, length)) {
451 if (length < PAGE_SIZE)
452 buffer[length] = '\0';
453 else if (buffer[PAGE_SIZE-1]) {
458 scsi_dev_info_list_add_str(buffer);
461 free_page((unsigned long)buffer);
464 #endif /* CONFIG_SCSI_PROC_FS */
466 module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
467 MODULE_PARM_DESC(dev_flags,
468 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
469 " list entries for vendor and model with an integer value of flags"
470 " to the scsi device info list");
472 module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
473 MODULE_PARM_DESC(default_dev_flags,
474 "scsi default device flag integer value");
477 * scsi_dev_info_list_delete: called from scsi.c:exit_scsi to remove
478 * the scsi_dev_info_list.
480 void scsi_exit_devinfo(void)
482 struct list_head *lh, *lh_next;
483 struct scsi_dev_info_list *devinfo;
485 #ifdef CONFIG_SCSI_PROC_FS
486 remove_proc_entry("scsi/device_info", 0);
489 list_for_each_safe(lh, lh_next, &scsi_dev_info_list) {
490 devinfo = list_entry(lh, struct scsi_dev_info_list,
497 * scsi_dev_list_init: set up the dynamic device list.
498 * @dev_list: string of device flags to add
501 * Add command line @dev_list entries, then add
502 * scsi_static_device_list entries to the scsi device info list.
504 int scsi_init_devinfo(void)
506 #ifdef CONFIG_SCSI_PROC_FS
507 struct proc_dir_entry *p;
511 error = scsi_dev_info_list_add_str(scsi_dev_flags);
515 for (i = 0; scsi_static_device_list[i].vendor; i++) {
516 error = scsi_dev_info_list_add(1 /* compatibile */,
517 scsi_static_device_list[i].vendor,
518 scsi_static_device_list[i].model,
520 scsi_static_device_list[i].flags);
525 #ifdef CONFIG_SCSI_PROC_FS
526 p = create_proc_entry("scsi/device_info", 0, NULL);
532 p->owner = THIS_MODULE;
533 p->get_info = proc_scsi_devinfo_read;
534 p->write_proc = proc_scsi_devinfo_write;
535 #endif /* CONFIG_SCSI_PROC_FS */