mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
883 lines
29 KiB
883 lines
29 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
|
|
#include <linux/blkdev.h> |
|
#include <linux/init.h> |
|
#include <linux/kernel.h> |
|
#include <linux/module.h> |
|
#include <linux/moduleparam.h> |
|
#include <linux/proc_fs.h> |
|
#include <linux/seq_file.h> |
|
#include <linux/slab.h> |
|
|
|
#include <scsi/scsi_device.h> |
|
#include <scsi/scsi_devinfo.h> |
|
|
|
#include "scsi_priv.h" |
|
|
|
|
|
/* |
|
* scsi_dev_info_list: structure to hold black/white listed devices. |
|
*/ |
|
struct scsi_dev_info_list { |
|
struct list_head dev_info_list; |
|
char vendor[8]; |
|
char model[16]; |
|
blist_flags_t flags; |
|
unsigned compatible; /* for use with scsi_static_device_list entries */ |
|
}; |
|
|
|
struct scsi_dev_info_list_table { |
|
struct list_head node; /* our node for being on the master list */ |
|
struct list_head scsi_dev_info_list; /* head of dev info list */ |
|
const char *name; /* name of list for /proc (NULL for global) */ |
|
int key; /* unique numeric identifier */ |
|
}; |
|
|
|
|
|
static blist_flags_t scsi_default_dev_flags; |
|
static LIST_HEAD(scsi_dev_info_list); |
|
static char scsi_dev_flags[256]; |
|
|
|
/* |
|
* scsi_static_device_list: deprecated list of devices that require |
|
* settings that differ from the default, includes black-listed (broken) |
|
* devices. The entries here are added to the tail of scsi_dev_info_list |
|
* via scsi_dev_info_list_init. |
|
* |
|
* Do not add to this list, use the command line or proc interface to add |
|
* to the scsi_dev_info_list. This table will eventually go away. |
|
*/ |
|
static struct { |
|
char *vendor; |
|
char *model; |
|
char *revision; /* revision known to be bad, unused */ |
|
blist_flags_t flags; |
|
} scsi_static_device_list[] __initdata = { |
|
/* |
|
* The following devices are known not to tolerate a lun != 0 scan |
|
* for one reason or another. Some will respond to all luns, |
|
* others will lock up. |
|
*/ |
|
{"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */ |
|
{"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */ |
|
{"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */ |
|
{"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */ |
|
{"HITACHI", "DK312C", "CM81", BLIST_NOLUN}, /* responds to all lun */ |
|
{"HITACHI", "DK314C", "CR21", BLIST_NOLUN}, /* responds to all lun */ |
|
{"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */ |
|
{"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */ |
|
{"IMS", "CDD521/10", "2.06", BLIST_NOLUN}, /* locks up */ |
|
{"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN}, /* locks up */ |
|
{"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN}, /* locks up */ |
|
{"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN}, /* locks up */ |
|
{"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN}, /* locks up */ |
|
{"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN}, /* locks up */ |
|
{"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN}, /* responds to all lun */ |
|
{"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN}, /* responds to all lun */ |
|
{"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */ |
|
{"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN}, /* responds to all lun */ |
|
{"RODIME", "RO3000S", "2.33", BLIST_NOLUN}, /* locks up */ |
|
{"SUN", "SENA", NULL, BLIST_NOLUN}, /* responds to all luns */ |
|
/* |
|
* The following causes a failed REQUEST SENSE on lun 1 for |
|
* aha152x controller, which causes SCSI code to reset bus. |
|
*/ |
|
{"SANYO", "CRD-250S", "1.20", BLIST_NOLUN}, |
|
/* |
|
* The following causes a failed REQUEST SENSE on lun 1 for |
|
* aha152x controller, which causes SCSI code to reset bus. |
|
*/ |
|
{"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN}, |
|
{"SEAGATE", "ST296", "921", BLIST_NOLUN}, /* responds to all lun */ |
|
{"SEAGATE", "ST1581", "6538", BLIST_NOLUN}, /* responds to all lun */ |
|
{"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN}, |
|
{"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN}, |
|
{"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN}, |
|
{"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN}, |
|
{"SONY", "SDT-5000", "3.17", BLIST_SELECT_NO_ATN}, |
|
{"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN}, /* locks up */ |
|
{"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN}, /* locks up */ |
|
/* |
|
* The following causes a failed REQUEST SENSE on lun 1 for |
|
* seagate controller, which causes SCSI code to reset bus. |
|
*/ |
|
{"TEAC", "CD-ROM", "1.06", BLIST_NOLUN}, |
|
{"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */ |
|
/* |
|
* The following causes a failed REQUEST SENSE on lun 1 for |
|
* seagate controller, which causes SCSI code to reset bus. |
|
*/ |
|
{"HP", "C1750A", "3226", BLIST_NOLUN}, /* scanjet iic */ |
|
{"HP", "C1790A", NULL, BLIST_NOLUN}, /* scanjet iip */ |
|
{"HP", "C2500A", NULL, BLIST_NOLUN}, /* scanjet iicx */ |
|
{"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN}, /* locks up */ |
|
{"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN}, /* responds to all lun */ |
|
{"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN}, /* locks up */ |
|
{"NEC", "D3856", "0009", BLIST_NOLUN}, |
|
{"QUANTUM", "LPS525S", "3110", BLIST_NOLUN}, /* locks up */ |
|
{"QUANTUM", "PD1225S", "3110", BLIST_NOLUN}, /* locks up */ |
|
{"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN}, /* locks up */ |
|
{"RELISYS", "Scorpio", NULL, BLIST_NOLUN}, /* responds to all lun */ |
|
{"SANKYO", "CP525", "6.64", BLIST_NOLUN}, /* causes failed REQ SENSE, extra reset */ |
|
{"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN | BLIST_BORKEN}, |
|
{"transtec", "T5008", "0001", BLIST_NOREPORTLUN }, |
|
{"YAMAHA", "CDR100", "1.00", BLIST_NOLUN}, /* locks up */ |
|
{"YAMAHA", "CDR102", "1.00", BLIST_NOLUN}, /* locks up */ |
|
{"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN}, /* locks up */ |
|
{"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN}, /* locks up */ |
|
{"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */ |
|
|
|
/* |
|
* Other types of devices that have special flags. |
|
* Note that all USB devices should have the BLIST_INQUIRY_36 flag. |
|
*/ |
|
{"3PARdata", "VV", NULL, BLIST_REPORTLUN2}, |
|
{"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN}, |
|
{"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN}, |
|
{"AIX", "VDASD", NULL, BLIST_TRY_VPD_PAGES}, |
|
{"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN}, |
|
{"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36}, |
|
{"BROWNIE", "1200U3P", NULL, BLIST_NOREPORTLUN}, |
|
{"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN}, |
|
{"CANON", "IPUBJD", NULL, BLIST_SPARSELUN}, |
|
{"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36}, |
|
{"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */ |
|
{"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */ |
|
{"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */ |
|
{"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | |
|
BLIST_MAX_512 | BLIST_REPORTLUN2}, /* Compaq RA4x00 */ |
|
{"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512}, /* Compaq RA4x00 */ |
|
{"COMPAQ", "CR3500", NULL, BLIST_FORCELUN}, |
|
{"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD}, |
|
{"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD}, |
|
{"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, |
|
{"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN}, |
|
{"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, |
|
{"DELL", "PV660F", NULL, BLIST_SPARSELUN}, |
|
{"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN}, |
|
{"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */ |
|
{"DELL", "PV530F", NULL, BLIST_SPARSELUN}, |
|
{"DELL", "PERCRAID", NULL, BLIST_FORCELUN}, |
|
{"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* EMC CLARiiON, storage on LUN 0 */ |
|
{"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* EMC CLARiiON, no storage on LUN 0 */ |
|
{"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
|
{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | |
|
BLIST_REPORTLUN2 | BLIST_RETRY_ITF}, |
|
{"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN}, |
|
{"easyRAID", "16P", NULL, BLIST_NOREPORTLUN}, |
|
{"easyRAID", "X6P", NULL, BLIST_NOREPORTLUN}, |
|
{"easyRAID", "F8", NULL, BLIST_NOREPORTLUN}, |
|
{"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
|
{"FUJITSU", "ETERNUS_DXM", "*", BLIST_RETRY_ASC_C1}, |
|
{"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36}, |
|
{"Generic", "USB Storage-SMC", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36}, /* FW: 0180 and 0207 */ |
|
{"HITACHI", "DF400", "*", BLIST_REPORTLUN2}, |
|
{"HITACHI", "DF500", "*", BLIST_REPORTLUN2}, |
|
{"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2}, |
|
{"HITACHI", "HUS1530", "*", BLIST_NO_DIF}, |
|
{"HITACHI", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, |
|
{"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */ |
|
{"HP", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, /* HP XP Arrays */ |
|
{"HP", "NetRAID-4M", NULL, BLIST_FORCELUN}, |
|
{"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD}, |
|
{"HP", "C1557A", NULL, BLIST_FORCELUN}, |
|
{"HP", "C3323-300", "4269", BLIST_NOTQ}, |
|
{"HP", "C5713A", NULL, BLIST_NOREPORTLUN}, |
|
{"HP", "DISK-SUBSYSTEM", "*", BLIST_REPORTLUN2}, |
|
{"HPE", "OPEN-", "*", BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES}, |
|
{"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN}, |
|
{"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
|
{"IBM", "2105", NULL, BLIST_RETRY_HWERROR}, |
|
{"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN}, |
|
{"IOMEGA", "ZIP", NULL, BLIST_NOTQ | BLIST_NOLUN}, |
|
{"IOMEGA", "Io20S *F", NULL, BLIST_KEY}, |
|
{"INSITE", "Floptical F*8I", NULL, BLIST_KEY}, |
|
{"INSITE", "I325VM", NULL, BLIST_KEY}, |
|
{"Intel", "Multi-Flex", NULL, BLIST_NO_RSOC}, |
|
{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, |
|
{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN}, |
|
{"Marvell", "Console", NULL, BLIST_SKIP_VPD_PAGES}, |
|
{"Marvell", "91xx Config", "1.01", BLIST_SKIP_VPD_PAGES}, |
|
{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, |
|
{"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36}, |
|
{"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN}, |
|
{"MegaRAID", "LD", NULL, BLIST_FORCELUN}, |
|
{"MICROP", "4110", NULL, BLIST_NOTQ}, |
|
{"MSFT", "Virtual HD", NULL, BLIST_MAX_1024 | BLIST_NO_RSOC}, |
|
{"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2}, |
|
{"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN}, |
|
{"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"NEC", "iStorage", NULL, BLIST_REPORTLUN2}, |
|
{"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN}, |
|
{"Promise", "VTrak E610f", NULL, BLIST_SPARSELUN | BLIST_NO_RSOC}, |
|
{"Promise", "", NULL, BLIST_SPARSELUN}, |
|
{"QEMU", "QEMU CD-ROM", NULL, BLIST_SKIP_VPD_PAGES}, |
|
{"QNAP", "iSCSI Storage", NULL, BLIST_MAX_1024}, |
|
{"SYNOLOGY", "iSCSI Storage", NULL, BLIST_MAX_1024}, |
|
{"QUANTUM", "XP34301", "1071", BLIST_NOTQ}, |
|
{"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN}, |
|
{"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN}, |
|
{"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */ |
|
{"SEAGATE", "ST3390N", "9546", BLIST_NOTQ}, |
|
{"SEAGATE", "ST900MM0006", NULL, BLIST_SKIP_VPD_PAGES}, |
|
{"SGI", "RAID3", "*", BLIST_SPARSELUN}, |
|
{"SGI", "RAID5", "*", BLIST_SPARSELUN}, |
|
{"SGI", "TP9100", "*", BLIST_REPORTLUN2}, |
|
{"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"SUN", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"DELL", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"STK", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"NETAPP", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"LSI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"ENGENIO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"LENOVO", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"FUJITSU", "Universal Xport", "*", BLIST_NO_ULD_ATTACH}, |
|
{"SanDisk", "Cruzer Blade", NULL, BLIST_TRY_VPD_PAGES | |
|
BLIST_INQUIRY_36}, |
|
{"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36}, |
|
{"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN}, |
|
{"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */ |
|
{"ST650211", "CF", NULL, BLIST_RETRY_HWERROR}, |
|
{"SUN", "T300", "*", BLIST_SPARSELUN}, |
|
{"SUN", "T4", "*", BLIST_SPARSELUN}, |
|
{"Tornado-", "F4", "*", BLIST_NOREPORTLUN}, |
|
{"TOSHIBA", "CDROM", NULL, BLIST_ISROM}, |
|
{"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM}, |
|
{"Traxdata", "CDR4120", NULL, BLIST_NOLUN}, /* locks up */ |
|
{"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36}, |
|
{"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN}, |
|
{"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN}, |
|
{"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN}, |
|
{"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN}, |
|
{"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, |
|
{"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN}, |
|
{"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN}, |
|
{ NULL, NULL, NULL, 0 }, |
|
}; |
|
|
|
static struct scsi_dev_info_list_table *scsi_devinfo_lookup_by_key(int key) |
|
{ |
|
struct scsi_dev_info_list_table *devinfo_table; |
|
int found = 0; |
|
|
|
list_for_each_entry(devinfo_table, &scsi_dev_info_list, node) |
|
if (devinfo_table->key == key) { |
|
found = 1; |
|
break; |
|
} |
|
if (!found) |
|
return ERR_PTR(-EINVAL); |
|
|
|
return devinfo_table; |
|
} |
|
|
|
/* |
|
* scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into |
|
* devinfo vendor and model strings. |
|
*/ |
|
static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length, |
|
char *from, int compatible) |
|
{ |
|
size_t from_length; |
|
|
|
from_length = strlen(from); |
|
/* This zero-pads the destination */ |
|
strncpy(to, from, to_length); |
|
if (from_length < to_length && !compatible) { |
|
/* |
|
* space pad the string if it is short. |
|
*/ |
|
memset(&to[from_length], ' ', to_length - from_length); |
|
} |
|
if (from_length > to_length) |
|
printk(KERN_WARNING "%s: %s string '%s' is too long\n", |
|
__func__, name, from); |
|
} |
|
|
|
/** |
|
* scsi_dev_info_list_add - add one dev_info list entry. |
|
* @compatible: if true, null terminate short strings. Otherwise space pad. |
|
* @vendor: vendor string |
|
* @model: model (product) string |
|
* @strflags: integer string |
|
* @flags: if strflags NULL, use this flag value |
|
* |
|
* Description: |
|
* Create and add one dev_info entry for @vendor, @model, @strflags or |
|
* @flag. If @compatible, add to the tail of the list, do not space |
|
* pad, and set devinfo->compatible. The scsi_static_device_list entries |
|
* are added with @compatible 1 and @clfags NULL. |
|
* |
|
* Returns: 0 OK, -error on failure. |
|
**/ |
|
static int scsi_dev_info_list_add(int compatible, char *vendor, char *model, |
|
char *strflags, blist_flags_t flags) |
|
{ |
|
return scsi_dev_info_list_add_keyed(compatible, vendor, model, |
|
strflags, flags, |
|
SCSI_DEVINFO_GLOBAL); |
|
} |
|
|
|
/** |
|
* scsi_dev_info_list_add_keyed - add one dev_info list entry. |
|
* @compatible: if true, null terminate short strings. Otherwise space pad. |
|
* @vendor: vendor string |
|
* @model: model (product) string |
|
* @strflags: integer string |
|
* @flags: if strflags NULL, use this flag value |
|
* @key: specify list to use |
|
* |
|
* Description: |
|
* Create and add one dev_info entry for @vendor, @model, |
|
* @strflags or @flag in list specified by @key. If @compatible, |
|
* add to the tail of the list, do not space pad, and set |
|
* devinfo->compatible. The scsi_static_device_list entries are |
|
* added with @compatible 1 and @clfags NULL. |
|
* |
|
* Returns: 0 OK, -error on failure. |
|
**/ |
|
int scsi_dev_info_list_add_keyed(int compatible, char *vendor, char *model, |
|
char *strflags, blist_flags_t flags, |
|
enum scsi_devinfo_key key) |
|
{ |
|
struct scsi_dev_info_list *devinfo; |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
scsi_devinfo_lookup_by_key(key); |
|
|
|
if (IS_ERR(devinfo_table)) |
|
return PTR_ERR(devinfo_table); |
|
|
|
devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL); |
|
if (!devinfo) { |
|
printk(KERN_ERR "%s: no memory\n", __func__); |
|
return -ENOMEM; |
|
} |
|
|
|
scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor), |
|
vendor, compatible); |
|
scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model), |
|
model, compatible); |
|
|
|
if (strflags) { |
|
unsigned long long val; |
|
int ret = kstrtoull(strflags, 0, &val); |
|
|
|
if (ret != 0) { |
|
kfree(devinfo); |
|
return ret; |
|
} |
|
flags = (__force blist_flags_t)val; |
|
} |
|
if (flags & __BLIST_UNUSED_MASK) { |
|
pr_err("scsi_devinfo (%s:%s): unsupported flags 0x%llx", |
|
vendor, model, flags & __BLIST_UNUSED_MASK); |
|
kfree(devinfo); |
|
return -EINVAL; |
|
} |
|
devinfo->flags = flags; |
|
devinfo->compatible = compatible; |
|
|
|
if (compatible) |
|
list_add_tail(&devinfo->dev_info_list, |
|
&devinfo_table->scsi_dev_info_list); |
|
else |
|
list_add(&devinfo->dev_info_list, |
|
&devinfo_table->scsi_dev_info_list); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL(scsi_dev_info_list_add_keyed); |
|
|
|
/** |
|
* scsi_dev_info_list_find - find a matching dev_info list entry. |
|
* @vendor: full vendor string |
|
* @model: full model (product) string |
|
* @key: specify list to use |
|
* |
|
* Description: |
|
* Finds the first dev_info entry matching @vendor, @model |
|
* in list specified by @key. |
|
* |
|
* Returns: pointer to matching entry, or ERR_PTR on failure. |
|
**/ |
|
static struct scsi_dev_info_list *scsi_dev_info_list_find(const char *vendor, |
|
const char *model, enum scsi_devinfo_key key) |
|
{ |
|
struct scsi_dev_info_list *devinfo; |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
scsi_devinfo_lookup_by_key(key); |
|
size_t vmax, mmax, mlen; |
|
const char *vskip, *mskip; |
|
|
|
if (IS_ERR(devinfo_table)) |
|
return (struct scsi_dev_info_list *) devinfo_table; |
|
|
|
/* Prepare for "compatible" matches */ |
|
|
|
/* |
|
* XXX why skip leading spaces? If an odd INQUIRY |
|
* value, that should have been part of the |
|
* scsi_static_device_list[] entry, such as " FOO" |
|
* rather than "FOO". Since this code is already |
|
* here, and we don't know what device it is |
|
* trying to work with, leave it as-is. |
|
*/ |
|
vmax = sizeof(devinfo->vendor); |
|
vskip = vendor; |
|
while (vmax > 0 && *vskip == ' ') { |
|
vmax--; |
|
vskip++; |
|
} |
|
/* Also skip trailing spaces */ |
|
while (vmax > 0 && vskip[vmax - 1] == ' ') |
|
--vmax; |
|
|
|
mmax = sizeof(devinfo->model); |
|
mskip = model; |
|
while (mmax > 0 && *mskip == ' ') { |
|
mmax--; |
|
mskip++; |
|
} |
|
while (mmax > 0 && mskip[mmax - 1] == ' ') |
|
--mmax; |
|
|
|
list_for_each_entry(devinfo, &devinfo_table->scsi_dev_info_list, |
|
dev_info_list) { |
|
if (devinfo->compatible) { |
|
/* |
|
* vendor strings must be an exact match |
|
*/ |
|
if (vmax != strnlen(devinfo->vendor, |
|
sizeof(devinfo->vendor)) || |
|
memcmp(devinfo->vendor, vskip, vmax)) |
|
continue; |
|
|
|
/* |
|
* @model specifies the full string, and |
|
* must be larger or equal to devinfo->model |
|
*/ |
|
mlen = strnlen(devinfo->model, sizeof(devinfo->model)); |
|
if (mmax < mlen || memcmp(devinfo->model, mskip, mlen)) |
|
continue; |
|
return devinfo; |
|
} else { |
|
if (!memcmp(devinfo->vendor, vendor, |
|
sizeof(devinfo->vendor)) && |
|
!memcmp(devinfo->model, model, |
|
sizeof(devinfo->model))) |
|
return devinfo; |
|
} |
|
} |
|
|
|
return ERR_PTR(-ENOENT); |
|
} |
|
|
|
/** |
|
* scsi_dev_info_list_del_keyed - remove one dev_info list entry. |
|
* @vendor: vendor string |
|
* @model: model (product) string |
|
* @key: specify list to use |
|
* |
|
* Description: |
|
* Remove and destroy one dev_info entry for @vendor, @model |
|
* in list specified by @key. |
|
* |
|
* Returns: 0 OK, -error on failure. |
|
**/ |
|
int scsi_dev_info_list_del_keyed(char *vendor, char *model, |
|
enum scsi_devinfo_key key) |
|
{ |
|
struct scsi_dev_info_list *found; |
|
|
|
found = scsi_dev_info_list_find(vendor, model, key); |
|
if (IS_ERR(found)) |
|
return PTR_ERR(found); |
|
|
|
list_del(&found->dev_info_list); |
|
kfree(found); |
|
return 0; |
|
} |
|
EXPORT_SYMBOL(scsi_dev_info_list_del_keyed); |
|
|
|
/** |
|
* scsi_dev_info_list_add_str - parse dev_list and add to the scsi_dev_info_list. |
|
* @dev_list: string of device flags to add |
|
* |
|
* Description: |
|
* Parse dev_list, and add entries to the scsi_dev_info_list. |
|
* dev_list is of the form "vendor:product:flag,vendor:product:flag". |
|
* dev_list is modified via strsep. Can be called for command line |
|
* addition, for proc or mabye a sysfs interface. |
|
* |
|
* Returns: 0 if OK, -error on failure. |
|
**/ |
|
static int scsi_dev_info_list_add_str(char *dev_list) |
|
{ |
|
char *vendor, *model, *strflags, *next; |
|
char *next_check; |
|
int res = 0; |
|
|
|
next = dev_list; |
|
if (next && next[0] == '"') { |
|
/* |
|
* Ignore both the leading and trailing quote. |
|
*/ |
|
next++; |
|
next_check = ",\""; |
|
} else { |
|
next_check = ","; |
|
} |
|
|
|
/* |
|
* For the leading and trailing '"' case, the for loop comes |
|
* through the last time with vendor[0] == '\0'. |
|
*/ |
|
for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0') |
|
&& (res == 0); vendor = strsep(&next, ":")) { |
|
strflags = NULL; |
|
model = strsep(&next, ":"); |
|
if (model) |
|
strflags = strsep(&next, next_check); |
|
if (!model || !strflags) { |
|
printk(KERN_ERR "%s: bad dev info string '%s' '%s'" |
|
" '%s'\n", __func__, vendor, model, |
|
strflags); |
|
res = -EINVAL; |
|
} else |
|
res = scsi_dev_info_list_add(0 /* compatible */, vendor, |
|
model, strflags, 0); |
|
} |
|
return res; |
|
} |
|
|
|
/** |
|
* scsi_get_device_flags - get device specific flags from the dynamic |
|
* device list. |
|
* @sdev: &scsi_device to get flags for |
|
* @vendor: vendor name |
|
* @model: model name |
|
* |
|
* Description: |
|
* Search the global scsi_dev_info_list (specified by list zero) |
|
* for an entry matching @vendor and @model, if found, return the |
|
* matching flags value, else return the host or global default |
|
* settings. Called during scan time. |
|
**/ |
|
blist_flags_t scsi_get_device_flags(struct scsi_device *sdev, |
|
const unsigned char *vendor, |
|
const unsigned char *model) |
|
{ |
|
return scsi_get_device_flags_keyed(sdev, vendor, model, |
|
SCSI_DEVINFO_GLOBAL); |
|
} |
|
|
|
|
|
/** |
|
* scsi_get_device_flags_keyed - get device specific flags from the dynamic device list |
|
* @sdev: &scsi_device to get flags for |
|
* @vendor: vendor name |
|
* @model: model name |
|
* @key: list to look up |
|
* |
|
* Description: |
|
* Search the scsi_dev_info_list specified by @key for an entry |
|
* matching @vendor and @model, if found, return the matching |
|
* flags value, else return the host or global default settings. |
|
* Called during scan time. |
|
**/ |
|
blist_flags_t scsi_get_device_flags_keyed(struct scsi_device *sdev, |
|
const unsigned char *vendor, |
|
const unsigned char *model, |
|
enum scsi_devinfo_key key) |
|
{ |
|
struct scsi_dev_info_list *devinfo; |
|
|
|
devinfo = scsi_dev_info_list_find(vendor, model, key); |
|
if (!IS_ERR(devinfo)) |
|
return devinfo->flags; |
|
|
|
/* key or device not found: return nothing */ |
|
if (key != SCSI_DEVINFO_GLOBAL) |
|
return 0; |
|
|
|
/* except for the global list, where we have an exception */ |
|
if (sdev->sdev_bflags) |
|
return sdev->sdev_bflags; |
|
|
|
return scsi_default_dev_flags; |
|
} |
|
EXPORT_SYMBOL(scsi_get_device_flags_keyed); |
|
|
|
#ifdef CONFIG_SCSI_PROC_FS |
|
struct double_list { |
|
struct list_head *top; |
|
struct list_head *bottom; |
|
}; |
|
|
|
static int devinfo_seq_show(struct seq_file *m, void *v) |
|
{ |
|
struct double_list *dl = v; |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
list_entry(dl->top, struct scsi_dev_info_list_table, node); |
|
struct scsi_dev_info_list *devinfo = |
|
list_entry(dl->bottom, struct scsi_dev_info_list, |
|
dev_info_list); |
|
|
|
if (devinfo_table->scsi_dev_info_list.next == dl->bottom && |
|
devinfo_table->name) |
|
seq_printf(m, "[%s]:\n", devinfo_table->name); |
|
|
|
seq_printf(m, "'%.8s' '%.16s' 0x%llx\n", |
|
devinfo->vendor, devinfo->model, devinfo->flags); |
|
return 0; |
|
} |
|
|
|
static void *devinfo_seq_start(struct seq_file *m, loff_t *ppos) |
|
{ |
|
struct double_list *dl = kmalloc(sizeof(*dl), GFP_KERNEL); |
|
loff_t pos = *ppos; |
|
|
|
if (!dl) |
|
return NULL; |
|
|
|
list_for_each(dl->top, &scsi_dev_info_list) { |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
list_entry(dl->top, struct scsi_dev_info_list_table, |
|
node); |
|
list_for_each(dl->bottom, &devinfo_table->scsi_dev_info_list) |
|
if (pos-- == 0) |
|
return dl; |
|
} |
|
|
|
kfree(dl); |
|
return NULL; |
|
} |
|
|
|
static void *devinfo_seq_next(struct seq_file *m, void *v, loff_t *ppos) |
|
{ |
|
struct double_list *dl = v; |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
list_entry(dl->top, struct scsi_dev_info_list_table, node); |
|
|
|
++*ppos; |
|
dl->bottom = dl->bottom->next; |
|
while (&devinfo_table->scsi_dev_info_list == dl->bottom) { |
|
dl->top = dl->top->next; |
|
if (dl->top == &scsi_dev_info_list) { |
|
kfree(dl); |
|
return NULL; |
|
} |
|
devinfo_table = list_entry(dl->top, |
|
struct scsi_dev_info_list_table, |
|
node); |
|
dl->bottom = devinfo_table->scsi_dev_info_list.next; |
|
} |
|
|
|
return dl; |
|
} |
|
|
|
static void devinfo_seq_stop(struct seq_file *m, void *v) |
|
{ |
|
kfree(v); |
|
} |
|
|
|
static const struct seq_operations scsi_devinfo_seq_ops = { |
|
.start = devinfo_seq_start, |
|
.next = devinfo_seq_next, |
|
.stop = devinfo_seq_stop, |
|
.show = devinfo_seq_show, |
|
}; |
|
|
|
static int proc_scsi_devinfo_open(struct inode *inode, struct file *file) |
|
{ |
|
return seq_open(file, &scsi_devinfo_seq_ops); |
|
} |
|
|
|
/* |
|
* proc_scsi_dev_info_write - allow additions to scsi_dev_info_list via /proc. |
|
* |
|
* Description: Adds a black/white list entry for vendor and model with an |
|
* integer value of flag to the scsi device info list. |
|
* To use, echo "vendor:model:flag" > /proc/scsi/device_info |
|
*/ |
|
static ssize_t proc_scsi_devinfo_write(struct file *file, |
|
const char __user *buf, |
|
size_t length, loff_t *ppos) |
|
{ |
|
char *buffer; |
|
ssize_t err = length; |
|
|
|
if (!buf || length>PAGE_SIZE) |
|
return -EINVAL; |
|
if (!(buffer = (char *) __get_free_page(GFP_KERNEL))) |
|
return -ENOMEM; |
|
if (copy_from_user(buffer, buf, length)) { |
|
err =-EFAULT; |
|
goto out; |
|
} |
|
|
|
if (length < PAGE_SIZE) |
|
buffer[length] = '\0'; |
|
else if (buffer[PAGE_SIZE-1]) { |
|
err = -EINVAL; |
|
goto out; |
|
} |
|
|
|
scsi_dev_info_list_add_str(buffer); |
|
|
|
out: |
|
free_page((unsigned long)buffer); |
|
return err; |
|
} |
|
|
|
static const struct proc_ops scsi_devinfo_proc_ops = { |
|
.proc_open = proc_scsi_devinfo_open, |
|
.proc_read = seq_read, |
|
.proc_write = proc_scsi_devinfo_write, |
|
.proc_lseek = seq_lseek, |
|
.proc_release = seq_release, |
|
}; |
|
#endif /* CONFIG_SCSI_PROC_FS */ |
|
|
|
module_param_string(dev_flags, scsi_dev_flags, sizeof(scsi_dev_flags), 0); |
|
MODULE_PARM_DESC(dev_flags, |
|
"Given scsi_dev_flags=vendor:model:flags[,v:m:f] add black/white" |
|
" list entries for vendor and model with an integer value of flags" |
|
" to the scsi device info list"); |
|
|
|
module_param_named(default_dev_flags, scsi_default_dev_flags, ullong, 0644); |
|
MODULE_PARM_DESC(default_dev_flags, |
|
"scsi default device flag uint64_t value"); |
|
|
|
/** |
|
* scsi_exit_devinfo - remove /proc/scsi/device_info & the scsi_dev_info_list |
|
**/ |
|
void scsi_exit_devinfo(void) |
|
{ |
|
#ifdef CONFIG_SCSI_PROC_FS |
|
remove_proc_entry("scsi/device_info", NULL); |
|
#endif |
|
|
|
scsi_dev_info_remove_list(SCSI_DEVINFO_GLOBAL); |
|
} |
|
|
|
/** |
|
* scsi_dev_info_add_list - add a new devinfo list |
|
* @key: key of the list to add |
|
* @name: Name of the list to add (for /proc/scsi/device_info) |
|
* |
|
* Adds the requested list, returns zero on success, -EEXIST if the |
|
* key is already registered to a list, or other error on failure. |
|
*/ |
|
int scsi_dev_info_add_list(enum scsi_devinfo_key key, const char *name) |
|
{ |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
scsi_devinfo_lookup_by_key(key); |
|
|
|
if (!IS_ERR(devinfo_table)) |
|
/* list already exists */ |
|
return -EEXIST; |
|
|
|
devinfo_table = kmalloc(sizeof(*devinfo_table), GFP_KERNEL); |
|
|
|
if (!devinfo_table) |
|
return -ENOMEM; |
|
|
|
INIT_LIST_HEAD(&devinfo_table->node); |
|
INIT_LIST_HEAD(&devinfo_table->scsi_dev_info_list); |
|
devinfo_table->name = name; |
|
devinfo_table->key = key; |
|
list_add_tail(&devinfo_table->node, &scsi_dev_info_list); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL(scsi_dev_info_add_list); |
|
|
|
/** |
|
* scsi_dev_info_remove_list - destroy an added devinfo list |
|
* @key: key of the list to destroy |
|
* |
|
* Iterates over the entire list first, freeing all the values, then |
|
* frees the list itself. Returns 0 on success or -EINVAL if the key |
|
* can't be found. |
|
*/ |
|
int scsi_dev_info_remove_list(enum scsi_devinfo_key key) |
|
{ |
|
struct list_head *lh, *lh_next; |
|
struct scsi_dev_info_list_table *devinfo_table = |
|
scsi_devinfo_lookup_by_key(key); |
|
|
|
if (IS_ERR(devinfo_table)) |
|
/* no such list */ |
|
return -EINVAL; |
|
|
|
/* remove from the master list */ |
|
list_del(&devinfo_table->node); |
|
|
|
list_for_each_safe(lh, lh_next, &devinfo_table->scsi_dev_info_list) { |
|
struct scsi_dev_info_list *devinfo; |
|
|
|
devinfo = list_entry(lh, struct scsi_dev_info_list, |
|
dev_info_list); |
|
kfree(devinfo); |
|
} |
|
kfree(devinfo_table); |
|
|
|
return 0; |
|
} |
|
EXPORT_SYMBOL(scsi_dev_info_remove_list); |
|
|
|
/** |
|
* scsi_init_devinfo - set up the dynamic device list. |
|
* |
|
* Description: |
|
* Add command line entries from scsi_dev_flags, then add |
|
* scsi_static_device_list entries to the scsi device info list. |
|
*/ |
|
int __init scsi_init_devinfo(void) |
|
{ |
|
#ifdef CONFIG_SCSI_PROC_FS |
|
struct proc_dir_entry *p; |
|
#endif |
|
int error, i; |
|
|
|
error = scsi_dev_info_add_list(SCSI_DEVINFO_GLOBAL, NULL); |
|
if (error) |
|
return error; |
|
|
|
error = scsi_dev_info_list_add_str(scsi_dev_flags); |
|
if (error) |
|
goto out; |
|
|
|
for (i = 0; scsi_static_device_list[i].vendor; i++) { |
|
error = scsi_dev_info_list_add(1 /* compatibile */, |
|
scsi_static_device_list[i].vendor, |
|
scsi_static_device_list[i].model, |
|
NULL, |
|
scsi_static_device_list[i].flags); |
|
if (error) |
|
goto out; |
|
} |
|
|
|
#ifdef CONFIG_SCSI_PROC_FS |
|
p = proc_create("scsi/device_info", 0, NULL, &scsi_devinfo_proc_ops); |
|
if (!p) { |
|
error = -ENOMEM; |
|
goto out; |
|
} |
|
#endif /* CONFIG_SCSI_PROC_FS */ |
|
|
|
out: |
|
if (error) |
|
scsi_exit_devinfo(); |
|
return error; |
|
}
|
|
|