blob: 099b5455bbce287f60ef888566913616f13e9908 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001
2#include <linux/blkdev.h>
3#include <linux/init.h>
4#include <linux/kernel.h>
5#include <linux/module.h>
6#include <linux/moduleparam.h>
7#include <linux/proc_fs.h>
8#include <linux/seq_file.h>
9
10#include <scsi/scsi_device.h>
11#include <scsi/scsi_devinfo.h>
12
13#include "scsi_priv.h"
14
15
16/*
17 * scsi_dev_info_list: structure to hold black/white listed devices.
18 */
19struct scsi_dev_info_list {
20 struct list_head dev_info_list;
21 char vendor[8];
22 char model[16];
23 unsigned flags;
24 unsigned compatible; /* for use with scsi_static_device_list entries */
25};
26
27
28static const char spaces[] = " "; /* 16 of them */
29static unsigned scsi_default_dev_flags;
30static LIST_HEAD(scsi_dev_info_list);
31static char scsi_dev_flags[256];
32
33/*
34 * scsi_static_device_list: deprecated list of devices that require
35 * settings that differ from the default, includes black-listed (broken)
36 * devices. The entries here are added to the tail of scsi_dev_info_list
37 * via scsi_dev_info_list_init.
38 *
39 * Do not add to this list, use the command line or proc interface to add
40 * to the scsi_dev_info_list. This table will eventually go away.
41 */
42static struct {
43 char *vendor;
44 char *model;
45 char *revision; /* revision known to be bad, unused */
46 unsigned flags;
47} scsi_static_device_list[] __initdata = {
48 /*
49 * The following devices are known not to tolerate a lun != 0 scan
50 * for one reason or another. Some will respond to all luns,
51 * others will lock up.
52 */
53 {"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */
54 {"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */
55 {"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */
56 {"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */
57 {"HITACHI", "DK312C", "CM81", BLIST_NOLUN}, /* responds to all lun */
58 {"HITACHI", "DK314C", "CR21", BLIST_NOLUN}, /* responds to all lun */
Brian Kingf2536cb2006-04-26 13:48:11 -050059 {"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */
60 {"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */
Linus Torvalds1da177e2005-04-16 15:20:36 -070061 {"IMS", "CDD521/10", "2.06", BLIST_NOLUN}, /* locks up */
62 {"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN}, /* locks up */
63 {"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN}, /* locks up */
64 {"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN}, /* locks up */
65 {"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN}, /* locks up */
66 {"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN}, /* locks up */
67 {"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN}, /* responds to all lun */
68 {"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN}, /* responds to all lun */
69 {"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */
70 {"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN}, /* responds to all lun */
71 {"RODIME", "RO3000S", "2.33", BLIST_NOLUN}, /* locks up */
72 {"SUN", "SENA", NULL, BLIST_NOLUN}, /* responds to all luns */
73 /*
74 * The following causes a failed REQUEST SENSE on lun 1 for
75 * aha152x controller, which causes SCSI code to reset bus.
76 */
77 {"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
78 /*
79 * The following causes a failed REQUEST SENSE on lun 1 for
80 * aha152x controller, which causes SCSI code to reset bus.
81 */
82 {"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
83 {"SEAGATE", "ST296", "921", BLIST_NOLUN}, /* responds to all lun */
84 {"SEAGATE", "ST1581", "6538", BLIST_NOLUN}, /* responds to all lun */
85 {"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN},
86 {"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN},
87 {"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN},
88 {"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN},
89 {"SONY", "SDT-5000", "3.17", BLIST_SELECT_NO_ATN},
90 {"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN}, /* locks up */
91 {"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN}, /* locks up */
92 /*
93 * The following causes a failed REQUEST SENSE on lun 1 for
94 * seagate controller, which causes SCSI code to reset bus.
95 */
96 {"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
97 {"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */
98 /*
99 * The following causes a failed REQUEST SENSE on lun 1 for
100 * seagate controller, which causes SCSI code to reset bus.
101 */
102 {"HP", "C1750A", "3226", BLIST_NOLUN}, /* scanjet iic */
103 {"HP", "C1790A", "", BLIST_NOLUN}, /* scanjet iip */
104 {"HP", "C2500A", "", BLIST_NOLUN}, /* scanjet iicx */
105 {"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN}, /* locks up */
106 {"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN}, /* responds to all lun */
107 {"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN}, /* locks up */
108 {"NEC", "D3856", "0009", BLIST_NOLUN},
109 {"QUANTUM", "LPS525S", "3110", BLIST_NOLUN}, /* locks up */
110 {"QUANTUM", "PD1225S", "3110", BLIST_NOLUN}, /* locks up */
111 {"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN}, /* locks up */
112 {"RELISYS", "Scorpio", NULL, BLIST_NOLUN}, /* responds to all lun */
113 {"SANKYO", "CP525", "6.64", BLIST_NOLUN}, /* causes failed REQ SENSE, extra reset */
114 {"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
James Bottomley1c536312005-09-12 09:15:14 -0500115 {"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 {"YAMAHA", "CDR100", "1.00", BLIST_NOLUN}, /* locks up */
117 {"YAMAHA", "CDR102", "1.00", BLIST_NOLUN}, /* locks up */
118 {"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN}, /* locks up */
119 {"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN}, /* locks up */
Dave Jones0d7323c2005-08-08 19:01:43 -0400120 {"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
122 /*
123 * Other types of devices that have special flags.
124 * Note that all USB devices should have the BLIST_INQUIRY_36 flag.
125 */
126 {"3PARdata", "VV", NULL, BLIST_REPORTLUN2},
127 {"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
128 {"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
129 {"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
130 {"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36},
Matthew Wilcox80dc3e02007-07-05 08:57:50 -0600131 {"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN},
Matthew Wilcox98acfc72006-03-01 12:04:46 -0700132 {"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 {"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
134 {"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36},
135 {"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */
136 {"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */
137 {"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */
James Bottomley4d7db042006-03-31 20:07:45 -0600138 {"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN |
139 BLIST_MAX_512 | BLIST_REPORTLUN2}, /* Compaq RA4x00 */
140 {"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512}, /* Compaq RA4x00 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 {"COMPAQ", "CR3500", NULL, BLIST_FORCELUN},
142 {"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
143 {"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
144 {"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
145 {"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN},
James Bottomley507caac2005-08-09 12:57:11 -0500146 {"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147 {"DELL", "PV660F", NULL, BLIST_SPARSELUN},
148 {"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN},
149 {"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */
150 {"DELL", "PV530F", NULL, BLIST_SPARSELUN},
151 {"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
152 {"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, storage on LUN 0 */
153 {"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, no storage on LUN 0 */
Mike Christie3441afc2006-09-30 20:42:28 -0400154 {"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 {"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
156 {"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
akpm@linux-foundation.org80b1c7bd2007-07-27 13:30:02 -0700157 {"easyRAID", "16P", NULL, BLIST_NOREPORTLUN},
158 {"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN},
159 {"easyRAID", "F8", NULL, BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 {"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
161 {"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
162 {"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN | BLIST_INQUIRY_36},
163 {"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN | BLIST_INQUIRY_36},
164 {"HITACHI", "DF400", "*", BLIST_SPARSELUN},
165 {"HITACHI", "DF500", "*", BLIST_SPARSELUN},
166 {"HITACHI", "DF600", "*", BLIST_SPARSELUN},
Kurt Garloff13f7e5a2006-04-03 15:20:08 +0200167 {"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
168 {"HITACHI", "OPEN-E", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
Mike Christief70cfa92006-09-30 20:42:31 -0400169 {"HITACHI", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
170 {"HITACHI", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
171 {"HITACHI", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
172 {"HITACHI", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
173 {"HITACHI", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 {"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
Hannes Reinecke9ba08832006-06-22 09:19:51 +0200175 {"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* HP XP Arrays */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700176 {"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
177 {"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
178 {"HP", "C1557A", NULL, BLIST_FORCELUN},
179 {"HP", "C3323-300", "4269", BLIST_NOTQ},
Thomas Bogendoerferc3d83362006-05-16 06:38:29 +0200180 {"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
Mike Christief70cfa92006-09-30 20:42:31 -0400181 {"HP", "DF400", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
182 {"HP", "DF500", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
183 {"HP", "DF600", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
184 {"HP", "OP-C-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
185 {"HP", "3380-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
186 {"HP", "3390-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
187 {"HP", "6586-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
188 {"HP", "6588-", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 {"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
190 {"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
191 {"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
192 {"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
193 {"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
194 {"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
195 {"INSITE", "I325VM", NULL, BLIST_KEY},
196 {"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
197 {"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
198 {"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
199 {"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
200 {"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
201 {"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
202 {"MegaRAID", "LD", NULL, BLIST_FORCELUN},
203 {"MICROP", "4110", NULL, BLIST_NOTQ},
204 {"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
205 {"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
206 {"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
207 {"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
208 {"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Mike Christie12427d92006-09-30 20:42:30 -0400209 {"NEC", "iStorage", NULL, BLIST_REPORTLUN2},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700210 {"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
211 {"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
212 {"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
213 {"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
214 {"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Karl Magnus Kolstoef4fd20b2005-10-17 10:05:42 +0200215 {"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
Ed Line0b2e592007-05-09 20:50:33 -0800216 {"Promise", "", NULL, BLIST_SPARSELUN},
Matthew Wilcox2ffb45c2007-07-26 11:39:46 -0400217 {"QUANTUM", "XP34301", "1071", BLIST_NOTQ},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700218 {"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
219 {"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
220 {"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
221 {"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
222 {"SGI", "RAID3", "*", BLIST_SPARSELUN},
223 {"SGI", "RAID5", "*", BLIST_SPARSELUN},
224 {"SGI", "TP9100", "*", BLIST_REPORTLUN2},
225 {"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Anton Blanchard48690402005-09-06 18:08:14 +1000226 {"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
ILLES, Martondebf4772009-01-12 15:45:52 +0100227 {"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 {"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
229 {"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
230 {"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
231 {"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
232 {"SUN", "T300", "*", BLIST_SPARSELUN},
233 {"SUN", "T4", "*", BLIST_SPARSELUN},
234 {"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
Mike Christie5f619c52006-09-30 20:42:29 -0400235 {"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
Linus Torvalds1da177e2005-04-16 15:20:36 -0700236 {"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
237 {"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
238 {"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
239 {"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
240 {"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
241 {"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
242 {"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
243 {"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
244 {"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
245 {"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
246 { NULL, NULL, NULL, 0 },
247};
248
249/*
250 * scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
251 * devinfo vendor and model strings.
252 */
253static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
254 char *from, int compatible)
255{
256 size_t from_length;
257
258 from_length = strlen(from);
259 strncpy(to, from, min(to_length, from_length));
260 if (from_length < to_length) {
261 if (compatible) {
262 /*
263 * NUL terminate the string if it is short.
264 */
265 to[from_length] = '\0';
266 } else {
267 /*
268 * space pad the string if it is short.
269 */
270 strncpy(&to[from_length], spaces,
271 to_length - from_length);
272 }
273 }
274 if (from_length > to_length)
275 printk(KERN_WARNING "%s: %s string '%s' is too long\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700276 __func__, name, from);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277}
278
279/**
Rob Landleyeb448202007-11-03 13:30:39 -0500280 * scsi_dev_info_list_add - add one dev_info list entry.
281 * @compatible: if true, null terminate short strings. Otherwise space pad.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 * @vendor: vendor string
283 * @model: model (product) string
284 * @strflags: integer string
Rob Landleyeb448202007-11-03 13:30:39 -0500285 * @flags: if strflags NULL, use this flag value
Linus Torvalds1da177e2005-04-16 15:20:36 -0700286 *
287 * Description:
288 * Create and add one dev_info entry for @vendor, @model, @strflags or
289 * @flag. If @compatible, add to the tail of the list, do not space
290 * pad, and set devinfo->compatible. The scsi_static_device_list entries
291 * are added with @compatible 1 and @clfags NULL.
292 *
293 * Returns: 0 OK, -error on failure.
294 **/
295static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
296 char *strflags, int flags)
297{
298 struct scsi_dev_info_list *devinfo;
299
300 devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
301 if (!devinfo) {
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700302 printk(KERN_ERR "%s: no memory\n", __func__);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303 return -ENOMEM;
304 }
305
306 scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
307 vendor, compatible);
308 scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
309 model, compatible);
310
311 if (strflags)
312 devinfo->flags = simple_strtoul(strflags, NULL, 0);
313 else
314 devinfo->flags = flags;
315
316 devinfo->compatible = compatible;
317
318 if (compatible)
319 list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
320 else
321 list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
322
323 return 0;
324}
325
326/**
Rob Landleyeb448202007-11-03 13:30:39 -0500327 * scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700328 * @dev_list: string of device flags to add
329 *
330 * Description:
331 * Parse dev_list, and add entries to the scsi_dev_info_list.
332 * dev_list is of the form "vendor:product:flag,vendor:product:flag".
333 * dev_list is modified via strsep. Can be called for command line
334 * addition, for proc or mabye a sysfs interface.
335 *
336 * Returns: 0 if OK, -error on failure.
337 **/
338static int scsi_dev_info_list_add_str(char *dev_list)
339{
340 char *vendor, *model, *strflags, *next;
341 char *next_check;
342 int res = 0;
343
344 next = dev_list;
345 if (next && next[0] == '"') {
346 /*
347 * Ignore both the leading and trailing quote.
348 */
349 next++;
350 next_check = ",\"";
351 } else {
352 next_check = ",";
353 }
354
355 /*
356 * For the leading and trailing '"' case, the for loop comes
357 * through the last time with vendor[0] == '\0'.
358 */
359 for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
360 && (res == 0); vendor = strsep(&next, ":")) {
361 strflags = NULL;
362 model = strsep(&next, ":");
363 if (model)
364 strflags = strsep(&next, next_check);
365 if (!model || !strflags) {
366 printk(KERN_ERR "%s: bad dev info string '%s' '%s'"
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700367 " '%s'\n", __func__, vendor, model,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368 strflags);
369 res = -EINVAL;
370 } else
371 res = scsi_dev_info_list_add(0 /* compatible */, vendor,
372 model, strflags, 0);
373 }
374 return res;
375}
376
377/**
Rob Landleyeb448202007-11-03 13:30:39 -0500378 * get_device_flags - get device specific flags from the dynamic device list.
379 * @sdev: &scsi_device to get flags for
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 * @vendor: vendor name
381 * @model: model name
382 *
383 * Description:
384 * Search the scsi_dev_info_list for an entry matching @vendor and
385 * @model, if found, return the matching flags value, else return
Rob Landleyeb448202007-11-03 13:30:39 -0500386 * the host or global default settings. Called during scan time.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387 **/
James Bottomley7f23e142005-12-01 12:50:13 -0600388int scsi_get_device_flags(struct scsi_device *sdev,
389 const unsigned char *vendor,
390 const unsigned char *model)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700391{
392 struct scsi_dev_info_list *devinfo;
393 unsigned int bflags;
394
395 bflags = sdev->sdev_bflags;
396 if (!bflags)
397 bflags = scsi_default_dev_flags;
398
399 list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
400 if (devinfo->compatible) {
401 /*
402 * Behave like the older version of get_device_flags.
403 */
404 size_t max;
405 /*
406 * XXX why skip leading spaces? If an odd INQUIRY
407 * value, that should have been part of the
408 * scsi_static_device_list[] entry, such as " FOO"
409 * rather than "FOO". Since this code is already
410 * here, and we don't know what device it is
411 * trying to work with, leave it as-is.
412 */
413 max = 8; /* max length of vendor */
414 while ((max > 0) && *vendor == ' ') {
415 max--;
416 vendor++;
417 }
418 /*
419 * XXX removing the following strlen() would be
420 * good, using it means that for a an entry not in
421 * the list, we scan every byte of every vendor
422 * listed in scsi_static_device_list[], and never match
423 * a single one (and still have to compare at
424 * least the first byte of each vendor).
425 */
426 if (memcmp(devinfo->vendor, vendor,
427 min(max, strlen(devinfo->vendor))))
428 continue;
429 /*
430 * Skip spaces again.
431 */
432 max = 16; /* max length of model */
433 while ((max > 0) && *model == ' ') {
434 max--;
435 model++;
436 }
437 if (memcmp(devinfo->model, model,
438 min(max, strlen(devinfo->model))))
439 continue;
440 return devinfo->flags;
441 } else {
442 if (!memcmp(devinfo->vendor, vendor,
443 sizeof(devinfo->vendor)) &&
444 !memcmp(devinfo->model, model,
445 sizeof(devinfo->model)))
446 return devinfo->flags;
447 }
448 }
449 return bflags;
450}
451
452#ifdef CONFIG_SCSI_PROC_FS
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700453static int devinfo_seq_show(struct seq_file *m, void *v)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454{
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700455 struct scsi_dev_info_list *devinfo =
456 list_entry(v, struct scsi_dev_info_list, dev_info_list);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700457
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700458 seq_printf(m, "'%.8s' '%.16s' 0x%x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700459 devinfo->vendor, devinfo->model, devinfo->flags);
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700460 return 0;
461}
Linus Torvalds1da177e2005-04-16 15:20:36 -0700462
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700463static void * devinfo_seq_start(struct seq_file *m, loff_t *pos)
464{
465 return seq_list_start(&scsi_dev_info_list, *pos);
466}
467
468static void * devinfo_seq_next(struct seq_file *m, void *v, loff_t *pos)
469{
470 return seq_list_next(v, &scsi_dev_info_list, pos);
471}
472
473static void devinfo_seq_stop(struct seq_file *m, void *v)
474{
475}
476
477static const struct seq_operations scsi_devinfo_seq_ops = {
478 .start = devinfo_seq_start,
479 .next = devinfo_seq_next,
480 .stop = devinfo_seq_stop,
481 .show = devinfo_seq_show,
482};
483
484static int proc_scsi_devinfo_open(struct inode *inode, struct file *file)
485{
486 return seq_open(file, &scsi_devinfo_seq_ops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700487}
488
489/*
Rob Landleyeb448202007-11-03 13:30:39 -0500490 * proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 *
Rob Landleyeb448202007-11-03 13:30:39 -0500492 * Description: Adds a black/white list entry for vendor and model with an
493 * integer value of flag to the scsi device info list.
494 * To use, echo "vendor:model:flag" > /proc/scsi/device_info
Linus Torvalds1da177e2005-04-16 15:20:36 -0700495 */
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700496static ssize_t proc_scsi_devinfo_write(struct file *file,
497 const char __user *buf,
498 size_t length, loff_t *ppos)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499{
500 char *buffer;
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700501 ssize_t err = length;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502
503 if (!buf || length>PAGE_SIZE)
504 return -EINVAL;
505 if (!(buffer = (char *) __get_free_page(GFP_KERNEL)))
506 return -ENOMEM;
507 if (copy_from_user(buffer, buf, length)) {
508 err =-EFAULT;
509 goto out;
510 }
511
512 if (length < PAGE_SIZE)
513 buffer[length] = '\0';
514 else if (buffer[PAGE_SIZE-1]) {
515 err = -EINVAL;
516 goto out;
517 }
518
519 scsi_dev_info_list_add_str(buffer);
520
521out:
522 free_page((unsigned long)buffer);
523 return err;
524}
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700525
526static const struct file_operations scsi_devinfo_proc_fops = {
527 .owner = THIS_MODULE,
528 .open = proc_scsi_devinfo_open,
529 .read = seq_read,
530 .write = proc_scsi_devinfo_write,
531 .llseek = seq_lseek,
532 .release = seq_release,
533};
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534#endif /* CONFIG_SCSI_PROC_FS */
535
536module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0);
537MODULE_PARM_DESC(dev_flags,
538 "Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white"
539 " list entries for vendor and model with an integer value of flags"
540 " to the scsi device info list");
541
542module_param_named(default_dev_flags, scsi_default_dev_flags, int, S_IRUGO|S_IWUSR);
543MODULE_PARM_DESC(default_dev_flags,
544 "scsi default device flag integer value");
545
546/**
Rob Landleyeb448202007-11-03 13:30:39 -0500547 * scsi_dev_info_list_delete - called from scsi.c:exit_scsi to remove the scsi_dev_info_list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 **/
549void scsi_exit_devinfo(void)
550{
551 struct list_head *lh, *lh_next;
552 struct scsi_dev_info_list *devinfo;
553
554#ifdef CONFIG_SCSI_PROC_FS
555 remove_proc_entry("scsi/device_info", NULL);
556#endif
557
558 list_for_each_safe(lh, lh_next, &scsi_dev_info_list) {
559 devinfo = list_entry(lh, struct scsi_dev_info_list,
560 dev_info_list);
561 kfree(devinfo);
562 }
563}
564
565/**
Randy Dunlapc93ff972007-11-15 17:07:28 -0800566 * scsi_init_devinfo - set up the dynamic device list.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700567 *
568 * Description:
Rob Landleyeb448202007-11-03 13:30:39 -0500569 * Add command line entries from scsi_dev_flags, then add
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 * scsi_static_device_list entries to the scsi device info list.
Rob Landleyeb448202007-11-03 13:30:39 -0500571 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572int __init scsi_init_devinfo(void)
573{
574#ifdef CONFIG_SCSI_PROC_FS
575 struct proc_dir_entry *p;
576#endif
577 int error, i;
578
579 error = scsi_dev_info_list_add_str(scsi_dev_flags);
580 if (error)
581 return error;
582
583 for (i = 0; scsi_static_device_list[i].vendor; i++) {
584 error = scsi_dev_info_list_add(1 /* compatibile */,
585 scsi_static_device_list[i].vendor,
586 scsi_static_device_list[i].model,
587 NULL,
588 scsi_static_device_list[i].flags);
589 if (error)
590 goto out;
591 }
592
593#ifdef CONFIG_SCSI_PROC_FS
Alexey Dobriyan352ced82008-04-29 01:01:55 -0700594 p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_fops);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700595 if (!p) {
596 error = -ENOMEM;
597 goto out;
598 }
599
600 p->owner = THIS_MODULE;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700601#endif /* CONFIG_SCSI_PROC_FS */
602
603 out:
604 if (error)
605 scsi_exit_devinfo();
606 return error;
607}