mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 09:46:41 +07:00
578 lines
20 KiB
C
578 lines
20 KiB
C
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#include <linux/blkdev.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <scsi/scsi_device.h>
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#include <scsi/scsi_devinfo.h>
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#include "scsi_priv.h"
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/*
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* scsi_dev_info_list: structure to hold black/white listed devices.
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*/
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struct scsi_dev_info_list {
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struct list_head dev_info_list;
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char vendor[8];
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char model[16];
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unsigned flags;
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unsigned compatible; /* for use with scsi_static_device_list entries */
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};
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static const char spaces[] = " "; /* 16 of them */
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static unsigned scsi_default_dev_flags;
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static LIST_HEAD(scsi_dev_info_list);
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static char scsi_dev_flags[256];
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/*
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* scsi_static_device_list: deprecated list of devices that require
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* settings that differ from the default, includes black-listed (broken)
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* devices. The entries here are added to the tail of scsi_dev_info_list
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* via scsi_dev_info_list_init.
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*
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* Do not add to this list, use the command line or proc interface to add
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* to the scsi_dev_info_list. This table will eventually go away.
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*/
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static struct {
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char *vendor;
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char *model;
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char *revision; /* revision known to be bad, unused */
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unsigned flags;
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} scsi_static_device_list[] __initdata = {
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/*
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* The following devices are known not to tolerate a lun != 0 scan
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* for one reason or another. Some will respond to all luns,
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* others will lock up.
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*/
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{"Aashima", "IMAGERY 2400SP", "1.03", BLIST_NOLUN}, /* locks up */
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{"CHINON", "CD-ROM CDS-431", "H42", BLIST_NOLUN}, /* locks up */
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{"CHINON", "CD-ROM CDS-535", "Q14", BLIST_NOLUN}, /* locks up */
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{"DENON", "DRD-25X", "V", BLIST_NOLUN}, /* locks up */
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{"HITACHI", "DK312C", "CM81", BLIST_NOLUN}, /* responds to all lun */
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{"HITACHI", "DK314C", "CR21", BLIST_NOLUN}, /* responds to all lun */
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{"IBM", "2104-DU3", NULL, BLIST_NOLUN}, /* locks up */
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{"IBM", "2104-TU3", NULL, BLIST_NOLUN}, /* locks up */
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{"IMS", "CDD521/10", "2.06", BLIST_NOLUN}, /* locks up */
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{"MAXTOR", "XT-3280", "PR02", BLIST_NOLUN}, /* locks up */
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{"MAXTOR", "XT-4380S", "B3C", BLIST_NOLUN}, /* locks up */
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{"MAXTOR", "MXT-1240S", "I1.2", BLIST_NOLUN}, /* locks up */
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{"MAXTOR", "XT-4170S", "B5A", BLIST_NOLUN}, /* locks up */
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{"MAXTOR", "XT-8760S", "B7B", BLIST_NOLUN}, /* locks up */
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{"MEDIAVIS", "RENO CD-ROMX2A", "2.03", BLIST_NOLUN}, /* responds to all lun */
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{"MICROTEK", "ScanMakerIII", "2.30", BLIST_NOLUN}, /* responds to all lun */
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{"NEC", "CD-ROM DRIVE:841", "1.0", BLIST_NOLUN},/* locks up */
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{"PHILIPS", "PCA80SC", "V4-2", BLIST_NOLUN}, /* responds to all lun */
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{"RODIME", "RO3000S", "2.33", BLIST_NOLUN}, /* locks up */
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{"SUN", "SENA", NULL, BLIST_NOLUN}, /* responds to all luns */
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/*
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* The following causes a failed REQUEST SENSE on lun 1 for
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* aha152x controller, which causes SCSI code to reset bus.
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*/
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{"SANYO", "CRD-250S", "1.20", BLIST_NOLUN},
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/*
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* The following causes a failed REQUEST SENSE on lun 1 for
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* aha152x controller, which causes SCSI code to reset bus.
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*/
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{"SEAGATE", "ST157N", "\004|j", BLIST_NOLUN},
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{"SEAGATE", "ST296", "921", BLIST_NOLUN}, /* responds to all lun */
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{"SEAGATE", "ST1581", "6538", BLIST_NOLUN}, /* responds to all lun */
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{"SONY", "CD-ROM CDU-541", "4.3d", BLIST_NOLUN},
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{"SONY", "CD-ROM CDU-55S", "1.0i", BLIST_NOLUN},
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{"SONY", "CD-ROM CDU-561", "1.7x", BLIST_NOLUN},
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{"SONY", "CD-ROM CDU-8012", NULL, BLIST_NOLUN},
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{"SONY", "SDT-5000", "3.17", BLIST_SELECT_NO_ATN},
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{"TANDBERG", "TDC 3600", "U07", BLIST_NOLUN}, /* locks up */
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{"TEAC", "CD-R55S", "1.0H", BLIST_NOLUN}, /* locks up */
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/*
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* The following causes a failed REQUEST SENSE on lun 1 for
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* seagate controller, which causes SCSI code to reset bus.
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*/
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{"TEAC", "CD-ROM", "1.06", BLIST_NOLUN},
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{"TEAC", "MT-2ST/45S2-27", "RV M", BLIST_NOLUN}, /* responds to all lun */
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/*
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* The following causes a failed REQUEST SENSE on lun 1 for
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* seagate controller, which causes SCSI code to reset bus.
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*/
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{"HP", "C1750A", "3226", BLIST_NOLUN}, /* scanjet iic */
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{"HP", "C1790A", "", BLIST_NOLUN}, /* scanjet iip */
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{"HP", "C2500A", "", BLIST_NOLUN}, /* scanjet iicx */
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{"MEDIAVIS", "CDR-H93MV", "1.31", BLIST_NOLUN}, /* locks up */
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{"MICROTEK", "ScanMaker II", "5.61", BLIST_NOLUN}, /* responds to all lun */
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{"MITSUMI", "CD-R CR-2201CS", "6119", BLIST_NOLUN}, /* locks up */
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{"NEC", "D3856", "0009", BLIST_NOLUN},
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{"QUANTUM", "LPS525S", "3110", BLIST_NOLUN}, /* locks up */
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{"QUANTUM", "PD1225S", "3110", BLIST_NOLUN}, /* locks up */
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{"QUANTUM", "FIREBALL ST4.3S", "0F0C", BLIST_NOLUN}, /* locks up */
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{"RELISYS", "Scorpio", NULL, BLIST_NOLUN}, /* responds to all lun */
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{"SANKYO", "CP525", "6.64", BLIST_NOLUN}, /* causes failed REQ SENSE, extra reset */
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{"TEXEL", "CD-ROM", "1.06", BLIST_NOLUN},
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{"transtec", "T5008", "0001", BLIST_NOREPORTLUN },
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{"YAMAHA", "CDR100", "1.00", BLIST_NOLUN}, /* locks up */
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{"YAMAHA", "CDR102", "1.00", BLIST_NOLUN}, /* locks up */
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{"YAMAHA", "CRW8424S", "1.0", BLIST_NOLUN}, /* locks up */
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{"YAMAHA", "CRW6416S", "1.0c", BLIST_NOLUN}, /* locks up */
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{"", "Scanner", "1.80", BLIST_NOLUN}, /* responds to all lun */
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/*
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* Other types of devices that have special flags.
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* Note that all USB devices should have the BLIST_INQUIRY_36 flag.
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*/
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{"3PARdata", "VV", NULL, BLIST_REPORTLUN2},
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{"ADAPTEC", "AACRAID", NULL, BLIST_FORCELUN},
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{"ADAPTEC", "Adaptec 5400S", NULL, BLIST_FORCELUN},
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{"AFT PRO", "-IX CF", "0.0>", BLIST_FORCELUN},
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{"BELKIN", "USB 2 HS-CF", "1.95", BLIST_FORCELUN | BLIST_INQUIRY_36},
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{"BROWNIE", "1600U3P", NULL, BLIST_NOREPORTLUN},
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{"CANON", "IPUBJD", NULL, BLIST_SPARSELUN},
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{"CBOX3", "USB Storage-SMC", "300A", BLIST_FORCELUN | BLIST_INQUIRY_36},
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{"CMD", "CRA-7280", NULL, BLIST_SPARSELUN}, /* CMD RAID Controller */
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{"CNSI", "G7324", NULL, BLIST_SPARSELUN}, /* Chaparral G7324 RAID */
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{"CNSi", "G8324", NULL, BLIST_SPARSELUN}, /* Chaparral G8324 RAID */
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{"COMPAQ", "ARRAY CONTROLLER", NULL, BLIST_SPARSELUN | BLIST_LARGELUN |
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BLIST_MAX_512 | BLIST_REPORTLUN2}, /* Compaq RA4x00 */
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{"COMPAQ", "LOGICAL VOLUME", NULL, BLIST_FORCELUN | BLIST_MAX_512}, /* Compaq RA4x00 */
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{"COMPAQ", "CR3500", NULL, BLIST_FORCELUN},
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{"COMPAQ", "MSA1000", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
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{"COMPAQ", "MSA1000 VOLUME", NULL, BLIST_SPARSELUN | BLIST_NOSTARTONADD},
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{"COMPAQ", "HSV110", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
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{"DDN", "SAN DataDirector", "*", BLIST_SPARSELUN},
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{"DEC", "HSG80", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
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{"DELL", "PV660F", NULL, BLIST_SPARSELUN},
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{"DELL", "PV660F PSEUDO", NULL, BLIST_SPARSELUN},
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{"DELL", "PSEUDO DEVICE .", NULL, BLIST_SPARSELUN}, /* Dell PV 530F */
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{"DELL", "PV530F", NULL, BLIST_SPARSELUN},
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{"DELL", "PERCRAID", NULL, BLIST_FORCELUN},
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{"DGC", "RAID", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, storage on LUN 0 */
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{"DGC", "DISK", NULL, BLIST_SPARSELUN}, /* Dell PV 650F, no storage on LUN 0 */
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{"EMC", "SYMMETRIX", NULL, BLIST_SPARSELUN | BLIST_LARGELUN | BLIST_FORCELUN},
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{"EMULEX", "MD21/S2 ESDI", NULL, BLIST_SINGLELUN},
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{"FSC", "CentricStor", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
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{"Generic", "USB SD Reader", "1.00", BLIST_FORCELUN | BLIST_INQUIRY_36},
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{"Generic", "USB Storage-SMC", "0180", BLIST_FORCELUN | BLIST_INQUIRY_36},
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{"Generic", "USB Storage-SMC", "0207", BLIST_FORCELUN | BLIST_INQUIRY_36},
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{"HITACHI", "DF400", "*", BLIST_SPARSELUN},
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{"HITACHI", "DF500", "*", BLIST_SPARSELUN},
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{"HITACHI", "DF600", "*", BLIST_SPARSELUN},
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{"HITACHI", "DISK-SUBSYSTEM", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
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{"HITACHI", "OPEN-E", "*", BLIST_ATTACH_PQ3 | BLIST_SPARSELUN | BLIST_LARGELUN},
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{"HP", "A6189A", NULL, BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP VA7400 */
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{"HP", "OPEN-", "*", BLIST_SPARSELUN | BLIST_LARGELUN}, /* HP XP Arrays */
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{"HP", "NetRAID-4M", NULL, BLIST_FORCELUN},
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{"HP", "HSV100", NULL, BLIST_REPORTLUN2 | BLIST_NOSTARTONADD},
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{"HP", "C1557A", NULL, BLIST_FORCELUN},
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{"HP", "C3323-300", "4269", BLIST_NOTQ},
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{"HP", "C5713A", NULL, BLIST_NOREPORTLUN},
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{"IBM", "AuSaV1S2", NULL, BLIST_FORCELUN},
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{"IBM", "ProFibre 4000R", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
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{"IBM", "2105", NULL, BLIST_RETRY_HWERROR},
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{"iomega", "jaz 1GB", "J.86", BLIST_NOTQ | BLIST_NOLUN},
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{"IOMEGA", "Io20S *F", NULL, BLIST_KEY},
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{"INSITE", "Floptical F*8I", NULL, BLIST_KEY},
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{"INSITE", "I325VM", NULL, BLIST_KEY},
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{"iRiver", "iFP Mass Driver", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
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{"LASOUND", "CDX7405", "3.10", BLIST_MAX5LUN | BLIST_SINGLELUN},
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{"MATSHITA", "PD-1", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"MATSHITA", "DMC-LC5", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
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{"MATSHITA", "DMC-LC40", NULL, BLIST_NOT_LOCKABLE | BLIST_INQUIRY_36},
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{"Medion", "Flash XL MMC/SD", "2.6D", BLIST_FORCELUN},
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{"MegaRAID", "LD", NULL, BLIST_FORCELUN},
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{"MICROP", "4110", NULL, BLIST_NOTQ},
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{"MYLEX", "DACARMRB", "*", BLIST_REPORTLUN2},
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{"nCipher", "Fastness Crypto", NULL, BLIST_FORCELUN},
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{"NAKAMICH", "MJ-4.8S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"NAKAMICH", "MJ-5.16S", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"NEC", "PD-1 ODX654P", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"NRC", "MBR-7", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"NRC", "MBR-7.4", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"PIONEER", "CD-ROM DRM-600", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"PIONEER", "CD-ROM DRM-602X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"PIONEER", "CD-ROM DRM-604X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"PIONEER", "CD-ROM DRM-624X", NULL, BLIST_FORCELUN | BLIST_SINGLELUN},
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{"REGAL", "CDC-4X", NULL, BLIST_MAX5LUN | BLIST_SINGLELUN},
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{"SanDisk", "ImageMate CF-SD1", NULL, BLIST_FORCELUN},
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{"SEAGATE", "ST34555N", "0930", BLIST_NOTQ}, /* Chokes on tagged INQUIRY */
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{"SEAGATE", "ST3390N", "9546", BLIST_NOTQ},
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{"SGI", "RAID3", "*", BLIST_SPARSELUN},
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{"SGI", "RAID5", "*", BLIST_SPARSELUN},
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{"SGI", "TP9100", "*", BLIST_REPORTLUN2},
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{"SGI", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
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{"IBM", "Universal Xport", "*", BLIST_NO_ULD_ATTACH},
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{"SMSC", "USB 2 HS-CF", NULL, BLIST_SPARSELUN | BLIST_INQUIRY_36},
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{"SONY", "CD-ROM CDU-8001", NULL, BLIST_BORKEN},
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{"SONY", "TSL", NULL, BLIST_FORCELUN}, /* DDS3 & DDS4 autoloaders */
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{"ST650211", "CF", NULL, BLIST_RETRY_HWERROR},
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{"SUN", "T300", "*", BLIST_SPARSELUN},
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{"SUN", "T4", "*", BLIST_SPARSELUN},
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{"TEXEL", "CD-ROM", "1.06", BLIST_BORKEN},
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{"TOSHIBA", "CDROM", NULL, BLIST_ISROM},
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{"TOSHIBA", "CD-ROM", NULL, BLIST_ISROM},
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{"USB2.0", "SMARTMEDIA/XD", NULL, BLIST_FORCELUN | BLIST_INQUIRY_36},
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{"WangDAT", "Model 2600", "01.7", BLIST_SELECT_NO_ATN},
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{"WangDAT", "Model 3200", "02.2", BLIST_SELECT_NO_ATN},
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{"WangDAT", "Model 1300", "02.4", BLIST_SELECT_NO_ATN},
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{"WDC WD25", "00JB-00FUA0", NULL, BLIST_NOREPORTLUN},
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{"XYRATEX", "RS", "*", BLIST_SPARSELUN | BLIST_LARGELUN},
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{"Zzyzx", "RocketStor 500S", NULL, BLIST_SPARSELUN},
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{"Zzyzx", "RocketStor 2000", NULL, BLIST_SPARSELUN},
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{ NULL, NULL, NULL, 0 },
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};
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/*
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* scsi_strcpy_devinfo: called from scsi_dev_info_list_add to copy into
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* devinfo vendor and model strings.
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*/
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static void scsi_strcpy_devinfo(char *name, char *to, size_t to_length,
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char *from, int compatible)
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{
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size_t from_length;
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from_length = strlen(from);
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strncpy(to, from, min(to_length, from_length));
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if (from_length < to_length) {
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if (compatible) {
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/*
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* NUL terminate the string if it is short.
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*/
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to[from_length] = '\0';
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} else {
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/*
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* space pad the string if it is short.
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*/
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strncpy(&to[from_length], spaces,
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to_length - from_length);
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}
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}
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if (from_length > to_length)
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printk(KERN_WARNING "%s: %s string '%s' is too long\n",
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__FUNCTION__, name, from);
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}
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/**
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* scsi_dev_info_list_add: add one dev_info list entry.
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* @vendor: vendor string
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* @model: model (product) string
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* @strflags: integer string
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* @flag: if strflags NULL, use this flag value
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*
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* Description:
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* Create and add one dev_info entry for @vendor, @model, @strflags or
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* @flag. If @compatible, add to the tail of the list, do not space
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* pad, and set devinfo->compatible. The scsi_static_device_list entries
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* are added with @compatible 1 and @clfags NULL.
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*
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* Returns: 0 OK, -error on failure.
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**/
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static int scsi_dev_info_list_add(int compatible, char *vendor, char *model,
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char *strflags, int flags)
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{
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struct scsi_dev_info_list *devinfo;
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devinfo = kmalloc(sizeof(*devinfo), GFP_KERNEL);
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if (!devinfo) {
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printk(KERN_ERR "%s: no memory\n", __FUNCTION__);
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return -ENOMEM;
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}
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scsi_strcpy_devinfo("vendor", devinfo->vendor, sizeof(devinfo->vendor),
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vendor, compatible);
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scsi_strcpy_devinfo("model", devinfo->model, sizeof(devinfo->model),
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model, compatible);
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if (strflags)
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devinfo->flags = simple_strtoul(strflags, NULL, 0);
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else
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devinfo->flags = flags;
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devinfo->compatible = compatible;
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if (compatible)
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list_add_tail(&devinfo->dev_info_list, &scsi_dev_info_list);
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else
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list_add(&devinfo->dev_info_list, &scsi_dev_info_list);
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return 0;
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}
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/**
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* scsi_dev_info_list_add_str: parse dev_list and add to the
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* scsi_dev_info_list.
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* @dev_list: string of device flags to add
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*
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* Description:
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* Parse dev_list, and add entries to the scsi_dev_info_list.
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* dev_list is of the form "vendor:product:flag,vendor:product:flag".
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* dev_list is modified via strsep. Can be called for command line
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* addition, for proc or mabye a sysfs interface.
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*
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* Returns: 0 if OK, -error on failure.
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**/
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static int scsi_dev_info_list_add_str(char *dev_list)
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{
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char *vendor, *model, *strflags, *next;
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char *next_check;
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int res = 0;
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next = dev_list;
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if (next && next[0] == '"') {
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/*
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* Ignore both the leading and trailing quote.
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*/
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next++;
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next_check = ",\"";
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} else {
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next_check = ",";
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}
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/*
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* For the leading and trailing '"' case, the for loop comes
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* through the last time with vendor[0] == '\0'.
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*/
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for (vendor = strsep(&next, ":"); vendor && (vendor[0] != '\0')
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&& (res == 0); vendor = strsep(&next, ":")) {
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strflags = NULL;
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model = strsep(&next, ":");
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if (model)
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strflags = strsep(&next, next_check);
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if (!model || !strflags) {
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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;
|
|
}
|