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linux-next/drivers/scsi/scsi_devinfo.c
Mike Christie 5f619c5ba5 [SCSI] scsi_devinfo: add Tornado 
This is from RHEL4. I do not have any info from our bugzilla. All
I could find was something like this thread
http://lkml.org/lkml/2005/1/7/346

Report lun for linux does not work. It may be our lun format code or
it may be the device. It is probably not worth it to add anything
special for this device, so the patch just adds BLIST_NOREPORTLUN.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-10-01 15:07:57 -05:00

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#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 <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];
unsigned flags;
unsigned compatible; /* for use with scsi_static_device_list entries */
};
static const char spaces[] = " "; /* 16 of them */
static unsigned 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 */
unsigned 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", "", BLIST_NOLUN}, /* scanjet iip */
{"HP", "C2500A", "", 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},
{"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},
{"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
{"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"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}, /* Dell PV 650F, storage on LUN 0 */
{"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, no storage on LUN 0 */
{"EMC", "Invista", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
{"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
{"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
{"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN | BLIST_INQUIRY_36},
{"HITACHI", "DF400", "*", BLIST_SPARSELUN},
{"HITACHI", "DF500", "*", BLIST_SPARSELUN},
{"HITACHI", "DF600", "*", BLIST_SPARSELUN},
{"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
{"HITACHI", "OPEN-E", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
{"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
{"HP", "OPEN-", "*", BLIST_REPORTLUN2}, /* 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},
{"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", "Io20S *F", NULL, BLIST_KEY},
{"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
{"INSITE", "I325VM", NULL, BLIST_KEY},
{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
{"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},
{"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},
{"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},
{"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},
{"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},
{"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},
{"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
{"Tornado-", "F4", "*", BLIST_NOREPORTLUN},
{"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
{"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
{"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 },
};
/*
* 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);
strncpy(to, from, min(to_length, from_length));
if (from_length < to_length) {
if (compatible) {
/*
* NUL terminate the string if it is short.
*/
to[from_length] = '\0';
} else {
/*
* space pad the string if it is short.
*/
strncpy(&to[from_length], spaces,
to_length - from_length);
}
}
if (from_length > to_length)
printk(KERN_WARNING "%s: %s string '%s' is too long\n",
__FUNCTION__, name, from);
}
/**
* scsi_dev_info_list_add: add one dev_info list entry.
* @vendor: vendor string
* @model: model (product) string
* @strflags: integer string
* @flag: 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, int flags)
{
struct scsi_dev_info_list *devinfo;
devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
if (!devinfo) {
printk(KERN_ERR "%s: no memory\n", __FUNCTION__);
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)
devinfo->flags = simple_strtoul(strflags, NULL, 0);
else
devinfo->flags = flags;
devinfo->compatible = compatible;
if (compatible)
list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
else
list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
return 0;
}
/**
* 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", __FUNCTION__, vendor, model,
strflags);
res = -EINVAL;
} else
res = scsi_dev_info_list_add(0 /* compatible */, vendor,
model, strflags, 0);
}
return res;
}
/**
* get_device_flags - get device specific flags from the dynamic device
* list. Called during scan time.
* @vendor: vendor name
* @model: model name
*
* Description:
* Search the scsi_dev_info_list for an entry matching @vendor and
* @model, if found, return the matching flags value, else return
* the host or global default settings.
**/
int scsi_get_device_flags(struct scsi_device *sdev,
const unsigned char *vendor,
const unsigned char *model)
{
struct scsi_dev_info_list *devinfo;
unsigned int bflags;
bflags = sdev->sdev_bflags;
if (!bflags)
bflags = scsi_default_dev_flags;
list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
if (devinfo->compatible) {
/*
* Behave like the older version of get_device_flags.
*/
size_t max;
/*
* 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.
*/
max = 8; /* max length of vendor */
while ((max > 0) && *vendor == ' ') {
max--;
vendor++;
}
/*
* XXX removing the following strlen() would be
* good, using it means that for a an entry not in
* the list, we scan every byte of every vendor
* listed in scsi_static_device_list[], and never match
* a single one (and still have to compare at
* least the first byte of each vendor).
*/
if (memcmp(devinfo->vendor, vendor,
min(max, strlen(devinfo->vendor))))
continue;
/*
* Skip spaces again.
*/
max = 16; /* max length of model */
while ((max > 0) && *model == ' ') {
max--;
model++;
}
if (memcmp(devinfo->model, model,
min(max, strlen(devinfo->model))))
continue;
return devinfo->flags;
} else {
if (!memcmp(devinfo->vendor, vendor,
sizeof(devinfo->vendor)) &&
!memcmp(devinfo->model, model,
sizeof(devinfo->model)))
return devinfo->flags;
}
}
return bflags;
}
#ifdef CONFIG_SCSI_PROC_FS
/*
* proc_scsi_dev_info_read: dump the scsi_dev_info_list via
* /proc/scsi/device_info
*/
static int proc_scsi_devinfo_read(char *buffer, char **start,
off_t offset, int length)
{
struct scsi_dev_info_list *devinfo;
int size, len = 0;
off_t begin = 0;
off_t pos = 0;
list_for_each_entry(devinfo, &scsi_dev_info_list, dev_info_list) {
size = sprintf(buffer + len, "'%.8s' '%.16s' 0x%x\n",
devinfo->vendor, devinfo->model, devinfo->flags);
len += size;
pos = begin + len;
if (pos < offset) {
len = 0;
begin = pos;
}
if (pos > offset + length)
goto stop_output;
}
stop_output:
*start = buffer + (offset - begin); /* Start of wanted data */
len -= (offset - begin); /* Start slop */
if (len > length)
len = length; /* Ending slop */
return (len);
}
/*
* proc_scsi_dev_info_write: allow additions to the scsi_dev_info_list via
* /proc.
*
* Use: echo "vendor:model:flag" > /proc/scsi/device_info
*
* To add a black/white list entry for vendor and model with an integer
* value of flag to the scsi device info list.
*/
static int proc_scsi_devinfo_write(struct file *file, const char __user *buf,
unsigned long length, void *data)
{
char *buffer;
int 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;
}
#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, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(default_dev_flags,
"scsi default device flag integer value");
/**
* scsi_dev_info_list_delete: called from scsi.c:exit_scsi to remove
* the scsi_dev_info_list.
**/
void scsi_exit_devinfo(void)
{
struct list_head *lh, *lh_next;
struct scsi_dev_info_list *devinfo;
#ifdef CONFIG_SCSI_PROC_FS
remove_proc_entry("scsi/device_info", NULL);
#endif
list_for_each_safe(lh, lh_next, &scsi_dev_info_list) {
devinfo = list_entry(lh, struct scsi_dev_info_list,
dev_info_list);
kfree(devinfo);
}
}
/**
* scsi_dev_list_init: set up the dynamic device list.
* @dev_list: string of device flags to add
*
* Description:
* Add command line @dev_list entries, 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_list_add_str(scsi_dev_flags);
if (error)
return error;
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 = create_proc_entry("scsi/device_info", 0, NULL);
if (!p) {
error = -ENOMEM;
goto out;
}
p->owner = THIS_MODULE;
p->get_info = proc_scsi_devinfo_read;
p->write_proc = proc_scsi_devinfo_write;
#endif /* CONFIG_SCSI_PROC_FS */
out:
if (error)
scsi_exit_devinfo();
return error;
}
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