leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

scsi: osst: kill obsolete driver

Browse Source 
The osst driver is becoming obsolete, as the manufacturer went out of
business ages ago, and the maintainer has no means of testing any
improvements anymore.  Plus these days flash drives are cheaper and offer a
higher capacity.  So drop it completely.

Cc: Willem Riede <osst@riede.org>
Signed-off-by: Hannes Reinece <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Hannes Reinecke 2019-05-06 08:19:15 +02:00 committed by Martin K. Petersen
parent 82a54da641
commit 4e3ea141b5
9 changed files with 3 additions and 7126 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

218
Documentation/scsi/osst.txt
View File

@ -1,218 +0,0 @@
README file for the osst driver
===============================
(w) Kurt Garloff <garloff@suse.de> 12/2000
This file describes the osst driver as of version 0.8.x/0.9.x, the released
version of the osst driver.
It is intended to help advanced users to understand the role of osst and to
get them started using (and maybe debugging) it.
It won't address issues like "How do I compile a kernel?" or "How do I load
a module?", as these are too basic.
Once the OnStream got merged into the official kernel, the distro makers
will provide the OnStream support for those who are not familiar with
hacking their kernels.
Purpose
-------
The osst driver was developed, because the standard SCSI tape driver in
Linux, st, does not support the OnStream SC-x0 SCSI tape. The st is not to
blame for that, as the OnStream tape drives do not support the standard SCSI
command set for Serial Access Storage Devices (SASDs), which basically
corresponds to the QIC-157 spec.
Nevertheless, the OnStream tapes are nice pieces of hardware and therefore
the osst driver has been written to make these tape devs supported by Linux.
The driver is free software. It's released under the GNU GPL and planned to
be integrated into the mainstream kernel.
Implementation
--------------
The osst is a new high-level SCSI driver, just like st, sr, sd and sg. It
can be compiled into the kernel or loaded as a module.
As it represents a new device, it got assigned a new device node: /dev/osstX
are character devices with major no 206 and minor numbers like the /dev/stX
devices. If those are not present, you may create them by calling
Makedevs.sh as root (see below).
The driver started being a copy of st and as such, the osst devices'
behavior looks very much the same as st to the userspace applications.
History
-------
In the first place, osst shared its identity very much with st. That meant
that it used the same kernel structures and the same device node as st.
So you could only have either of them being present in the kernel. This has
been fixed by registering an own device, now.
st and osst can coexist, each only accessing the devices it can support by
themselves.
Installation
------------
osst got integrated into the linux kernel. Select it during kernel
configuration as module or compile statically into the kernel.
Compile your kernel and install the modules.
Now, your osst driver is inside the kernel or available as a module,
depending on your choice during kernel config. You may still need to create
the device nodes by calling the Makedevs.sh script (see below) manually.
To load your module, you may use the command
modprobe osst
as root. dmesg should show you, whether your OnStream tapes have been
recognized.
If you want to have the module autoloaded on access to /dev/osst, you may
add something like
alias char-major-206 osst
to a file under /etc/modprobe.d/ directory.
You may find it convenient to create a symbolic link
ln -s nosst0 /dev/tape
to make programs assuming a default name of /dev/tape more convenient to
use.
The device nodes for osst have to be created. Use the Makedevs.sh script
attached to this file.
Using it
--------
You may use the OnStream tape driver with your standard backup software,
which may be tar, cpio, amanda, arkeia, BRU, Lone Tar, ...
by specifying /dev/(n)osst0 as the tape device to use or using the above
symlink trick. The IOCTLs to control tape operation are also mostly
supported and you may try the mt (or mt_st) program to jump between
filemarks, eject the tape, ...
There's one limitation: You need to use a block size of 32kB.
(This limitation is worked on and will be fixed in version 0.8.8 of
this driver.)
If you just want to get started with standard software, here is an example
for creating and restoring a full backup:
# Backup
tar cvf - / --exclude /proc | buffer -s 32k -m 24M -B -t -o /dev/nosst0
# Restore
buffer -s 32k -m 8M -B -t -i /dev/osst0 | tar xvf - -C /
The buffer command has been used to buffer the data before it goes to the
tape (or the file system) in order to smooth out the data stream and prevent
the tape from needing to stop and rewind. The OnStream does have an internal
buffer and a variable speed which help this, but especially on writing, the
buffering still proves useful in most cases. It also pads the data to
guarantees the block size of 32k. (Otherwise you may pass the -b64 option to
tar.)
Expect something like 1.8MB/s for the SC-x0 drives and 0.9MB/s for the DI-30.
The USB drive will give you about 0.7MB/s.
On a fast machine, you may profit from software data compression (z flag for
tar).
USB and IDE
-----------
Via the SCSI emulation layers usb-storage and ide-scsi, you can also use the
osst driver to drive the USB-30 and the DI-30 drives. (Unfortunately, there
is no such layer for the parallel port, otherwise the DP-30 would work as
well.) For the USB support, you need the latest 2.4.0-test kernels and the
latest usb-storage driver from
http://www.linux-usb.org/
http://sourceforge.net/cvs/?group_id=3581
Note that the ide-tape driver as of 1.16f uses a slightly outdated on-tape
format and therefore is not completely interoperable with osst tapes.
The ADR-x0 line is fully SCSI-2 compliant and is supported by st, not osst.
The on-tape format is supposed to be compatible with the one used by osst.
Feedback and updates
--------------------
The driver development is coordinated through a mailing list
<osst@linux1.onstream.nl>
a CVS repository and some web pages.
The tester's pages which contain recent news and updated drivers to download
can be found on
http://sourceforge.net/projects/osst/
If you find any problems, please have a look at the tester's page in order
to see whether the problem is already known and solved. Otherwise, please
report it to the mailing list. Your feedback is welcome. (This holds also
for reports of successful usage, of course.)
In case of trouble, please do always provide the following info:
* driver and kernel version used (see syslog)
* driver messages (syslog)
* SCSI config and OnStream Firmware (/proc/scsi/scsi)
* description of error. Is it reproducible?
* software and commands used
You may subscribe to the mailing list, BTW, it's a majordomo list.
Status
------
0.8.0 was the first widespread BETA release. Since then a lot of reports
have been sent, but mostly reported success or only minor trouble.
All the issues have been addressed.
Check the web pages for more info about the current developments.
0.9.x is the tree for the 2.3/2.4 kernel.
Acknowledgments
----------------
The driver has been started by making a copy of Kai Makisara's st driver.
Most of the development has been done by Willem Riede. The presence of the
userspace program osg (onstreamsg) from Terry Hardie has been rather
helpful. The same holds for Gadi Oxman's ide-tape support for the DI-30.
I did add some patches to those drivers as well and coordinated things a
little bit.
Note that most of them did mostly spend their spare time for the creation of
this driver.
The people from OnStream, especially Jack Bombeeck did support this project
and always tried to answer HW or FW related questions. Furthermore, he
pushed the FW developers to do the right things.
SuSE did support this project by allowing me to work on it during my working
time for them and by integrating the driver into their distro.
More people did help by sending useful comments. Sorry to those who have
been forgotten. Thanks to all the GNU/FSF and Linux developers who made this
platform such an interesting, nice and stable platform.
Thanks go to those who tested the drivers and did send useful reports. Your
help is needed!
Makedevs.sh
-----------
#!/bin/sh
# Script to create OnStream SC-x0 device nodes (major 206)
# Usage: Makedevs.sh [nos [path to dev]]
# $Id: README.osst.kernel,v 1.4 2000/12/20 14:13:15 garloff Exp $
major=206
nrs=4
dir=/dev
test -z "$1" || nrs=$1
test -z "$2" || dir=$2
declare -i nr
nr=0
test -d $dir || mkdir -p $dir
while test $nr -lt $nrs; do
mknod $dir/osst$nr c $major $nr
chown 0.disk $dir/osst$nr; chmod 660 $dir/osst$nr;
mknod $dir/nosst$nr c $major $[nr+128]
chown 0.disk $dir/nosst$nr; chmod 660 $dir/nosst$nr;
mknod $dir/osst${nr}l c $major $[nr+32]
chown 0.disk $dir/osst${nr}l; chmod 660 $dir/osst${nr}l;
mknod $dir/nosst${nr}l c $major $[nr+160]
chown 0.disk $dir/nosst${nr}l; chmod 660 $dir/nosst${nr}l;
mknod $dir/osst${nr}m c $major $[nr+64]
chown 0.disk $dir/osst${nr}m; chmod 660 $dir/osst${nr}m;
mknod $dir/nosst${nr}m c $major $[nr+192]
chown 0.disk $dir/nosst${nr}m; chmod 660 $dir/nosst${nr}m;
mknod $dir/osst${nr}a c $major $[nr+96]
chown 0.disk $dir/osst${nr}a; chmod 660 $dir/osst${nr}a;
mknod $dir/nosst${nr}a c $major $[nr+224]
chown 0.disk $dir/nosst${nr}a; chmod 660 $dir/nosst${nr}a;
let nr+=1
done

10
MAINTAINERS
View File

@ -11662,16 +11662,6 @@ S: Maintained
F: drivers/mtd/nand/onenand/
F: include/linux/mtd/onenand*.h
ONSTREAM SCSI TAPE DRIVER
M: Willem Riede <osst@riede.org>
L: osst-users@lists.sourceforge.net
L: linux-scsi@vger.kernel.org
S: Maintained
F: Documentation/scsi/osst.txt
F: drivers/scsi/osst.*
F: drivers/scsi/osst_*.h
F: drivers/scsi/st.h
OP-TEE DRIVER
M: Jens Wiklander <jens.wiklander@linaro.org>
S: Maintained

22
drivers/scsi/Kconfig
View File

@ -98,28 +98,6 @@ config CHR_DEV_ST
To compile this driver as a module, choose M here and read
<file:Documentation/scsi/scsi.txt>. The module will be called st.
config CHR_DEV_OSST
tristate "SCSI OnStream SC-x0 tape support"
depends on SCSI
---help---
The OnStream SC-x0 SCSI tape drives cannot be driven by the
standard st driver, but instead need this special osst driver and
use the /dev/osstX char device nodes (major 206). Via usb-storage,
you may be able to drive the USB-x0 and DI-x0 drives as well.
Note that there is also a second generation of OnStream
tape drives (ADR-x0) that supports the standard SCSI-2 commands for
tapes (QIC-157) and can be driven by the standard driver st.
For more information, you may have a look at the SCSI-HOWTO
<http://www.tldp.org/docs.html#howto> and
<file:Documentation/scsi/osst.txt> in the kernel source.
More info on the OnStream driver may be found on
<http://sourceforge.net/projects/osst/>
Please also have a look at the standard st docu, as most of it
applies to osst as well.
To compile this driver as a module, choose M here and read
<file:Documentation/scsi/scsi.txt>. The module will be called osst.
config BLK_DEV_SR
tristate "SCSI CDROM support"
depends on SCSI && BLK_DEV

1
drivers/scsi/Makefile
View File

@ -143,7 +143,6 @@ obj-$(CONFIG_SCSI_WD719X) += wd719x.o
obj-$(CONFIG_ARM) += arm/
obj-$(CONFIG_CHR_DEV_ST) += st.o
obj-$(CONFIG_CHR_DEV_OSST) += osst.o
obj-$(CONFIG_BLK_DEV_SD) += sd_mod.o
obj-$(CONFIG_BLK_DEV_SR) += sr_mod.o
obj-$(CONFIG_CHR_DEV_SG) += sg.o

6107
drivers/scsi/osst.c
View File

File diff suppressed because it is too large Load Diff

651
drivers/scsi/osst.h
View File

@ -1,651 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* $Header: /cvsroot/osst/Driver/osst.h,v 1.16 2005/01/01 21:13:35 wriede Exp $
*/
#include <asm/byteorder.h>
#include <linux/completion.h>
#include <linux/mutex.h>
/* FIXME - rename and use the following two types or delete them!
* and the types really should go to st.h anyway...
* INQUIRY packet command - Data Format (From Table 6-8 of QIC-157C)
*/
typedef struct {
unsigned device_type :5; /* Peripheral Device Type */
unsigned reserved0_765 :3; /* Peripheral Qualifier - Reserved */
unsigned reserved1_6t0 :7; /* Reserved */
unsigned rmb :1; /* Removable Medium Bit */
unsigned ansi_version :3; /* ANSI Version */
unsigned ecma_version :3; /* ECMA Version */
unsigned iso_version :2; /* ISO Version */
unsigned response_format :4; /* Response Data Format */
unsigned reserved3_45 :2; /* Reserved */
unsigned reserved3_6 :1; /* TrmIOP - Reserved */
unsigned reserved3_7 :1; /* AENC - Reserved */
u8 additional_length; /* Additional Length (total_length-4) */
u8 rsv5, rsv6, rsv7; /* Reserved */
u8 vendor_id[8]; /* Vendor Identification */
u8 product_id[16]; /* Product Identification */
u8 revision_level[4]; /* Revision Level */
u8 vendor_specific[20]; /* Vendor Specific - Optional */
u8 reserved56t95[40]; /* Reserved - Optional */
/* Additional information may be returned */
} idetape_inquiry_result_t;
/*
* READ POSITION packet command - Data Format (From Table 6-57)
*/
typedef struct {
unsigned reserved0_10 :2; /* Reserved */
unsigned bpu :1; /* Block Position Unknown */
unsigned reserved0_543 :3; /* Reserved */
unsigned eop :1; /* End Of Partition */
unsigned bop :1; /* Beginning Of Partition */
u8 partition; /* Partition Number */
u8 reserved2, reserved3; /* Reserved */
u32 first_block; /* First Block Location */
u32 last_block; /* Last Block Location (Optional) */
u8 reserved12; /* Reserved */
u8 blocks_in_buffer[3]; /* Blocks In Buffer - (Optional) */
u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */
} idetape_read_position_result_t;
/*
* Follows structures which are related to the SELECT SENSE / MODE SENSE
* packet commands.
*/
#define COMPRESSION_PAGE 0x0f
#define COMPRESSION_PAGE_LENGTH 16
#define CAPABILITIES_PAGE 0x2a
#define CAPABILITIES_PAGE_LENGTH 20
#define TAPE_PARAMTR_PAGE 0x2b
#define TAPE_PARAMTR_PAGE_LENGTH 16
#define NUMBER_RETRIES_PAGE 0x2f
#define NUMBER_RETRIES_PAGE_LENGTH 4
#define BLOCK_SIZE_PAGE 0x30
#define BLOCK_SIZE_PAGE_LENGTH 4
#define BUFFER_FILLING_PAGE 0x33
#define BUFFER_FILLING_PAGE_LENGTH 4
#define VENDOR_IDENT_PAGE 0x36
#define VENDOR_IDENT_PAGE_LENGTH 8
#define LOCATE_STATUS_PAGE 0x37
#define LOCATE_STATUS_PAGE_LENGTH 0
#define MODE_HEADER_LENGTH 4
/*
* REQUEST SENSE packet command result - Data Format.
*/
typedef struct {
unsigned error_code :7; /* Current of deferred errors */
unsigned valid :1; /* The information field conforms to QIC-157C */
u8 reserved1 :8; /* Segment Number - Reserved */
unsigned sense_key :4; /* Sense Key */
unsigned reserved2_4 :1; /* Reserved */
unsigned ili :1; /* Incorrect Length Indicator */
unsigned eom :1; /* End Of Medium */
unsigned filemark :1; /* Filemark */
u32 information __attribute__ ((packed));
u8 asl; /* Additional sense length (n-7) */
u32 command_specific; /* Additional command specific information */
u8 asc; /* Additional Sense Code */
u8 ascq; /* Additional Sense Code Qualifier */
u8 replaceable_unit_code; /* Field Replaceable Unit Code */
unsigned sk_specific1 :7; /* Sense Key Specific */
unsigned sksv :1; /* Sense Key Specific information is valid */
u8 sk_specific2; /* Sense Key Specific */
u8 sk_specific3; /* Sense Key Specific */
u8 pad[2]; /* Padding to 20 bytes */
} idetape_request_sense_result_t;
/*
* Mode Parameter Header for the MODE SENSE packet command
*/
typedef struct {
u8 mode_data_length; /* Length of the following data transfer */
u8 medium_type; /* Medium Type */
u8 dsp; /* Device Specific Parameter */
u8 bdl; /* Block Descriptor Length */
} osst_mode_parameter_header_t;
/*
* Mode Parameter Block Descriptor the MODE SENSE packet command
*
* Support for block descriptors is optional.
*/
typedef struct {
u8 density_code; /* Medium density code */
u8 blocks[3]; /* Number of blocks */
u8 reserved4; /* Reserved */
u8 length[3]; /* Block Length */
} osst_parameter_block_descriptor_t;
/*
* The Data Compression Page, as returned by the MODE SENSE packet command.
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned ps :1;
unsigned reserved0 :1; /* Reserved */
unsigned page_code :6; /* Page Code - Should be 0xf */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page Code - Should be 0xf */
unsigned reserved0 :1; /* Reserved */
unsigned ps :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 14 */
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned dce :1; /* Data Compression Enable */
unsigned dcc :1; /* Data Compression Capable */
unsigned reserved2 :6; /* Reserved */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved2 :6; /* Reserved */
unsigned dcc :1; /* Data Compression Capable */
unsigned dce :1; /* Data Compression Enable */
#else
#error "Please fix <asm/byteorder.h>"
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned dde :1; /* Data Decompression Enable */
unsigned red :2; /* Report Exception on Decompression */
unsigned reserved3 :5; /* Reserved */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved3 :5; /* Reserved */
unsigned red :2; /* Report Exception on Decompression */
unsigned dde :1; /* Data Decompression Enable */
#else
#error "Please fix <asm/byteorder.h>"
#endif
u32 ca; /* Compression Algorithm */
u32 da; /* Decompression Algorithm */
u8 reserved[4]; /* Reserved */
} osst_data_compression_page_t;
/*
* The Medium Partition Page, as returned by the MODE SENSE packet command.
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned ps :1;
unsigned reserved1_6 :1; /* Reserved */
unsigned page_code :6; /* Page Code - Should be 0x11 */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page Code - Should be 0x11 */
unsigned reserved1_6 :1; /* Reserved */
unsigned ps :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 6 */
u8 map; /* Maximum Additional Partitions - Should be 0 */
u8 apd; /* Additional Partitions Defined - Should be 0 */
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned fdp :1; /* Fixed Data Partitions */
unsigned sdp :1; /* Should be 0 */
unsigned idp :1; /* Should be 0 */
unsigned psum :2; /* Should be 0 */
unsigned reserved4_012 :3; /* Reserved */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved4_012 :3; /* Reserved */
unsigned psum :2; /* Should be 0 */
unsigned idp :1; /* Should be 0 */
unsigned sdp :1; /* Should be 0 */
unsigned fdp :1; /* Fixed Data Partitions */
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 mfr; /* Medium Format Recognition */
u8 reserved[2]; /* Reserved */
} osst_medium_partition_page_t;
/*
* Capabilities and Mechanical Status Page
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned reserved1_67 :2;
unsigned page_code :6; /* Page code - Should be 0x2a */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page code - Should be 0x2a */
unsigned reserved1_67 :2;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 0x12 */
u8 reserved2, reserved3;
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned reserved4_67 :2;
unsigned sprev :1; /* Supports SPACE in the reverse direction */
unsigned reserved4_1234 :4;
unsigned ro :1; /* Read Only Mode */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned ro :1; /* Read Only Mode */
unsigned reserved4_1234 :4;
unsigned sprev :1; /* Supports SPACE in the reverse direction */
unsigned reserved4_67 :2;
#else
#error "Please fix <asm/byteorder.h>"
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned reserved5_67 :2;
unsigned qfa :1; /* Supports the QFA two partition formats */
unsigned reserved5_4 :1;
unsigned efmt :1; /* Supports ERASE command initiated formatting */
unsigned reserved5_012 :3;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved5_012 :3;
unsigned efmt :1; /* Supports ERASE command initiated formatting */
unsigned reserved5_4 :1;
unsigned qfa :1; /* Supports the QFA two partition formats */
unsigned reserved5_67 :2;
#else
#error "Please fix <asm/byteorder.h>"
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned cmprs :1; /* Supports data compression */
unsigned ecc :1; /* Supports error correction */
unsigned reserved6_45 :2; /* Reserved */
unsigned eject :1; /* The device can eject the volume */
unsigned prevent :1; /* The device defaults in the prevent state after power up */
unsigned locked :1; /* The volume is locked */
unsigned lock :1; /* Supports locking the volume */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned lock :1; /* Supports locking the volume */
unsigned locked :1; /* The volume is locked */
unsigned prevent :1; /* The device defaults in the prevent state after power up */
unsigned eject :1; /* The device can eject the volume */
unsigned reserved6_45 :2; /* Reserved */
unsigned ecc :1; /* Supports error correction */
unsigned cmprs :1; /* Supports data compression */
#else
#error "Please fix <asm/byteorder.h>"
#endif
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */
/* transfers for slow buffer memory ??? */
/* Also 32768 block size in some cases */
unsigned reserved7_3_6 :4;
unsigned blk1024 :1; /* Supports 1024 bytes block size */
unsigned blk512 :1; /* Supports 512 bytes block size */
unsigned reserved7_0 :1;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned reserved7_0 :1;
unsigned blk512 :1; /* Supports 512 bytes block size */
unsigned blk1024 :1; /* Supports 1024 bytes block size */
unsigned reserved7_3_6 :4;
unsigned blk32768 :1; /* slowb - the device restricts the byte count for PIO */
/* transfers for slow buffer memory ??? */
/* Also 32768 block size in some cases */
#else
#error "Please fix <asm/byteorder.h>"
#endif
__be16 max_speed; /* Maximum speed supported in KBps */
u8 reserved10, reserved11;
__be16 ctl; /* Continuous Transfer Limit in blocks */
__be16 speed; /* Current Speed, in KBps */
__be16 buffer_size; /* Buffer Size, in 512 bytes */
u8 reserved18, reserved19;
} osst_capabilities_page_t;
/*
* Block Size Page
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned ps :1;
unsigned reserved1_6 :1;
unsigned page_code :6; /* Page code - Should be 0x30 */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page code - Should be 0x30 */
unsigned reserved1_6 :1;
unsigned ps :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 page_length; /* Page Length - Should be 2 */
u8 reserved2;
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned one :1;
unsigned reserved2_6 :1;
unsigned record32_5 :1;
unsigned record32 :1;
unsigned reserved2_23 :2;
unsigned play32_5 :1;
unsigned play32 :1;
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned play32 :1;
unsigned play32_5 :1;
unsigned reserved2_23 :2;
unsigned record32 :1;
unsigned record32_5 :1;
unsigned reserved2_6 :1;
unsigned one :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
} osst_block_size_page_t;
/*
* Tape Parameters Page
*/
typedef struct {
#if defined(__BIG_ENDIAN_BITFIELD)
unsigned ps :1;
unsigned reserved1_6 :1;
unsigned page_code :6; /* Page code - Should be 0x2b */
#elif defined(__LITTLE_ENDIAN_BITFIELD)
unsigned page_code :6; /* Page code - Should be 0x2b */
unsigned reserved1_6 :1;
unsigned ps :1;
#else
#error "Please fix <asm/byteorder.h>"
#endif
u8 reserved2;
u8 density;
u8 reserved3,reserved4;
__be16 segtrk;
__be16 trks;
u8 reserved5,reserved6,reserved7,reserved8,reserved9,reserved10;
} osst_tape_paramtr_page_t;
/* OnStream definitions */
#define OS_CONFIG_PARTITION (0xff)
#define OS_DATA_PARTITION (0)
#define OS_PARTITION_VERSION (1)
/*
* partition
*/
typedef struct os_partition_s {
__u8 partition_num;
__u8 par_desc_ver;
__be16 wrt_pass_cntr;
__be32 first_frame_ppos;
__be32 last_frame_ppos;
__be32 eod_frame_ppos;
} os_partition_t;
/*
* DAT entry
*/
typedef struct os_dat_entry_s {
__be32 blk_sz;
__be16 blk_cnt;
__u8 flags;
__u8 reserved;
} os_dat_entry_t;
/*
* DAT
*/
#define OS_DAT_FLAGS_DATA (0xc)
#define OS_DAT_FLAGS_MARK (0x1)
typedef struct os_dat_s {
__u8 dat_sz;
__u8 reserved1;
__u8 entry_cnt;
__u8 reserved3;
os_dat_entry_t dat_list[16];
} os_dat_t;
/*
* Frame types
*/
#define OS_FRAME_TYPE_FILL (0)
#define OS_FRAME_TYPE_EOD (1 << 0)
#define OS_FRAME_TYPE_MARKER (1 << 1)
#define OS_FRAME_TYPE_HEADER (1 << 3)
#define OS_FRAME_TYPE_DATA (1 << 7)
/*
* AUX
*/
typedef struct os_aux_s {
__be32 format_id; /* hardware compatibility AUX is based on */
char application_sig[4]; /* driver used to write this media */
__be32 hdwr; /* reserved */
__be32 update_frame_cntr; /* for configuration frame */
__u8 frame_type;
__u8 frame_type_reserved;
__u8 reserved_18_19[2];
os_partition_t partition;
__u8 reserved_36_43[8];
__be32 frame_seq_num;
__be32 logical_blk_num_high;
__be32 logical_blk_num;
os_dat_t dat;
__u8 reserved188_191[4];
__be32 filemark_cnt;
__be32 phys_fm;
__be32 last_mark_ppos;
__u8 reserved204_223[20];
/*
* __u8 app_specific[32];
*
* Linux specific fields:
*/
__be32 next_mark_ppos; /* when known, points to next marker */
__be32 last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */
__u8 linux_specific[24];
__u8 reserved_256_511[256];
} os_aux_t;
#define OS_FM_TAB_MAX 1024
typedef struct os_fm_tab_s {
__u8 fm_part_num;
__u8 reserved_1;
__u8 fm_tab_ent_sz;
__u8 reserved_3;
__be16 fm_tab_ent_cnt;
__u8 reserved6_15[10];
__be32 fm_tab_ent[OS_FM_TAB_MAX];
} os_fm_tab_t;
typedef struct os_ext_trk_ey_s {
__u8 et_part_num;
__u8 fmt;
__be16 fm_tab_off;
__u8 reserved4_7[4];
__be32 last_hlb_hi;
__be32 last_hlb;
__be32 last_pp;
__u8 reserved20_31[12];
} os_ext_trk_ey_t;
typedef struct os_ext_trk_tb_s {
__u8 nr_stream_part;
__u8 reserved_1;
__u8 et_ent_sz;
__u8 reserved3_15[13];
os_ext_trk_ey_t dat_ext_trk_ey;
os_ext_trk_ey_t qfa_ext_trk_ey;
} os_ext_trk_tb_t;
typedef struct os_header_s {
char ident_str[8];
__u8 major_rev;
__u8 minor_rev;
__be16 ext_trk_tb_off;
__u8 reserved12_15[4];
__u8 pt_par_num;
__u8 pt_reserved1_3[3];
os_partition_t partition[16];
__be32 cfg_col_width;
__be32 dat_col_width;
__be32 qfa_col_width;
__u8 cartridge[16];
__u8 reserved304_511[208];
__be32 old_filemark_list[16680/4]; /* in ADR 1.4 __u8 track_table[16680] */
os_ext_trk_tb_t ext_track_tb;
__u8 reserved17272_17735[464];
os_fm_tab_t dat_fm_tab;
os_fm_tab_t qfa_fm_tab;
__u8 reserved25960_32767[6808];
} os_header_t;
/*
* OnStream ADRL frame
*/
#define OS_FRAME_SIZE (32 * 1024 + 512)
#define OS_DATA_SIZE (32 * 1024)
#define OS_AUX_SIZE (512)
//#define OSST_MAX_SG 2
/* The OnStream tape buffer descriptor. */
struct osst_buffer {
unsigned char in_use;
unsigned char dma; /* DMA-able buffer */
int buffer_size;
int buffer_blocks;
int buffer_bytes;
int read_pointer;
int writing;
int midlevel_result;
int syscall_result;
struct osst_request *last_SRpnt;
struct st_cmdstatus cmdstat;
struct rq_map_data map_data;
unsigned char *b_data;
os_aux_t *aux; /* onstream AUX structure at end of each block */
unsigned short use_sg; /* zero or number of s/g segments for this adapter */
unsigned short sg_segs; /* number of segments in s/g list */
unsigned short orig_sg_segs; /* number of segments allocated at first try */
struct scatterlist sg[1]; /* MUST BE last item */
} ;
/* The OnStream tape drive descriptor */
struct osst_tape {
struct scsi_driver *driver;
unsigned capacity;
struct scsi_device *device;
struct mutex lock; /* for serialization */
struct completion wait; /* for SCSI commands */
struct osst_buffer * buffer;
/* Drive characteristics */
unsigned char omit_blklims;
unsigned char do_auto_lock;
unsigned char can_bsr;
unsigned char can_partitions;
unsigned char two_fm;
unsigned char fast_mteom;
unsigned char restr_dma;
unsigned char scsi2_logical;
unsigned char default_drvbuffer; /* 0xff = don't touch, value 3 bits */
unsigned char pos_unknown; /* after reset position unknown */
int write_threshold;
int timeout; /* timeout for normal commands */
int long_timeout; /* timeout for commands known to take long time*/
/* Mode characteristics */
struct st_modedef modes[ST_NBR_MODES];
int current_mode;
/* Status variables */
int partition;
int new_partition;
int nbr_partitions; /* zero until partition support enabled */
struct st_partstat ps[ST_NBR_PARTITIONS];
unsigned char dirty;
unsigned char ready;
unsigned char write_prot;
unsigned char drv_write_prot;
unsigned char in_use;
unsigned char blksize_changed;
unsigned char density_changed;
unsigned char compression_changed;
unsigned char drv_buffer;
unsigned char density;
unsigned char door_locked;
unsigned char rew_at_close;
unsigned char inited;
int block_size;
int min_block;
int max_block;
int recover_count; /* from tape opening */
int abort_count;
int write_count;
int read_count;
int recover_erreg; /* from last status call */
/*
* OnStream specific data
*/
int os_fw_rev; /* the firmware revision * 10000 */
unsigned char raw; /* flag OnStream raw access (32.5KB block size) */
unsigned char poll; /* flag that this drive needs polling (IDE|firmware) */
unsigned char frame_in_buffer; /* flag that the frame as per frame_seq_number
* has been read into STp->buffer and is valid */
int frame_seq_number; /* logical frame number */
int logical_blk_num; /* logical block number */
unsigned first_frame_position; /* physical frame to be transferred to/from host */
unsigned last_frame_position; /* physical frame to be transferd to/from tape */
int cur_frames; /* current number of frames in internal buffer */
int max_frames; /* max number of frames in internal buffer */
char application_sig[5]; /* application signature */
unsigned char fast_open; /* flag that reminds us we didn't check headers at open */
unsigned short wrt_pass_cntr; /* write pass counter */
int update_frame_cntr; /* update frame counter */
int onstream_write_error; /* write error recovery active */
int header_ok; /* header frame verified ok */
int linux_media; /* reading linux-specifc media */
int linux_media_version;
os_header_t * header_cache; /* cache is kept for filemark positions */
int filemark_cnt;
int first_mark_ppos;
int last_mark_ppos;
int last_mark_lbn; /* storing log_blk_num of last mark is extends ADR spec */
int first_data_ppos;
int eod_frame_ppos;
int eod_frame_lfa;
int write_type; /* used in write error recovery */
int read_error_frame; /* used in read error recovery */
unsigned long cmd_start_time;
unsigned long max_cmd_time;
#if DEBUG
unsigned char write_pending;
int nbr_finished;
int nbr_waits;
unsigned char last_cmnd[6];
unsigned char last_sense[16];
#endif
struct gendisk *drive;
} ;
/* scsi tape command */
struct osst_request {
unsigned char cmd[MAX_COMMAND_SIZE];
unsigned char sense[SCSI_SENSE_BUFFERSIZE];
int result;
struct osst_tape *stp;
struct completion *waiting;
struct bio *bio;
};
/* Values of write_type */
#define OS_WRITE_DATA 0
#define OS_WRITE_EOD 1
#define OS_WRITE_NEW_MARK 2
#define OS_WRITE_LAST_MARK 3
#define OS_WRITE_HEADER 4
#define OS_WRITE_FILLER 5
/* Additional rw state */
#define OS_WRITING_COMPLETE 3

7
drivers/scsi/osst_detect.h
View File

@ -1,7 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#define SIGS_FROM_OSST \
{"OnStream", "SC-", "", "osst"}, \
{"OnStream", "DI-", "", "osst"}, \
{"OnStream", "DP-", "", "osst"}, \
{"OnStream", "FW-", "", "osst"}, \
{"OnStream", "USB", "", "osst"}

107
drivers/scsi/osst_options.h
View File

@ -1,107 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
The compile-time configurable defaults for the Linux SCSI tape driver.
Copyright 1995 Kai Makisara.
Last modified: Wed Sep 2 21:24:07 1998 by root@home
Changed (and renamed) for OnStream SCSI drives garloff@suse.de
2000-06-21
$Header: /cvsroot/osst/Driver/osst_options.h,v 1.6 2003/12/23 14:22:12 wriede Exp $
*/
#ifndef _OSST_OPTIONS_H
#define _OSST_OPTIONS_H
/* The minimum limit for the number of SCSI tape devices is determined by
OSST_MAX_TAPES. If the number of tape devices and the "slack" defined by
OSST_EXTRA_DEVS exceeds OSST_MAX_TAPES, the large number is used. */
#define OSST_MAX_TAPES 4
/* If OSST_IN_FILE_POS is nonzero, the driver positions the tape after the
record been read by the user program even if the tape has moved further
because of buffered reads. Should be set to zero to support also drives
that can't space backwards over records. NOTE: The tape will be
spaced backwards over an "accidentally" crossed filemark in any case. */
#define OSST_IN_FILE_POS 1
/* The tape driver buffer size in kilobytes. */
/* Don't change, as this is the HW blocksize */
#define OSST_BUFFER_BLOCKS 32
/* The number of kilobytes of data in the buffer that triggers an
asynchronous write in fixed block mode. See also OSST_ASYNC_WRITES
below. */
#define OSST_WRITE_THRESHOLD_BLOCKS 32
/* OSST_EOM_RESERVE defines the number of frames are kept in reserve for
* * write error recovery when writing near end of medium. ENOSPC is returned
* * when write() is called and the tape write position is within this number
* * of blocks from the tape capacity. */
#define OSST_EOM_RESERVE 300
/* The maximum number of tape buffers the driver allocates. The number
is also constrained by the number of drives detected. Determines the
maximum number of concurrently active tape drives. */
#define OSST_MAX_BUFFERS OSST_MAX_TAPES
/* Maximum number of scatter/gather segments */
/* Fit one buffer in pages and add one for the AUX header */
#define OSST_MAX_SG (((OSST_BUFFER_BLOCKS*1024) / PAGE_SIZE) + 1)
/* The number of scatter/gather segments to allocate at first try (must be
smaller or equal to the maximum). */
#define OSST_FIRST_SG ((OSST_BUFFER_BLOCKS*1024) / PAGE_SIZE)
/* The size of the first scatter/gather segments (determines the maximum block
size for SCSI adapters not supporting scatter/gather). The default is set
to try to allocate the buffer as one chunk. */
#define OSST_FIRST_ORDER (15-PAGE_SHIFT)
/* The following lines define defaults for properties that can be set
separately for each drive using the MTSTOPTIONS ioctl. */
/* If OSST_TWO_FM is non-zero, the driver writes two filemarks after a
file being written. Some drives can't handle two filemarks at the
end of data. */
#define OSST_TWO_FM 0
/* If OSST_BUFFER_WRITES is non-zero, writes in fixed block mode are
buffered until the driver buffer is full or asynchronous write is
triggered. */
#define OSST_BUFFER_WRITES 1
/* If OSST_ASYNC_WRITES is non-zero, the SCSI write command may be started
without waiting for it to finish. May cause problems in multiple
tape backups. */
#define OSST_ASYNC_WRITES 1
/* If OSST_READ_AHEAD is non-zero, blocks are read ahead in fixed block
mode. */
#define OSST_READ_AHEAD 1
/* If OSST_AUTO_LOCK is non-zero, the drive door is locked at the first
read or write command after the device is opened. The door is opened
when the device is closed. */
#define OSST_AUTO_LOCK 0
/* If OSST_FAST_MTEOM is non-zero, the MTEOM ioctl is done using the
direct SCSI command. The file number status is lost but this method
is fast with some drives. Otherwise MTEOM is done by spacing over
files and the file number status is retained. */
#define OSST_FAST_MTEOM 0
/* If OSST_SCSI2LOGICAL is nonzero, the logical block addresses are used for
MTIOCPOS and MTSEEK by default. Vendor addresses are used if OSST_SCSI2LOGICAL
is zero. */
#define OSST_SCSI2LOGICAL 0
/* If OSST_SYSV is non-zero, the tape behaves according to the SYS V semantics.
The default is BSD semantics. */
#define OSST_SYSV 0
#endif

6
drivers/scsi/st.c
View File

@ -228,7 +228,6 @@ static DEFINE_IDR(st_index_idr);
#include "osst_detect.h"
#ifndef SIGS_FROM_OSST
#define SIGS_FROM_OSST \
{"OnStream", "SC-", "", "osst"}, \
@ -4267,9 +4266,10 @@ static int st_probe(struct device *dev)
if (SDp->type != TYPE_TAPE)
return -ENODEV;
if ((stp = st_incompatible(SDp))) {
sdev_printk(KERN_INFO, SDp, "Found incompatible tape\n");
sdev_printk(KERN_INFO, SDp,
"st: The suggested driver is %s.\n", stp);
"OnStream tapes are no longer supported;\n");
sdev_printk(KERN_INFO, SDp,
"please mail to linux-scsi@vger.kernel.org.\n");
return -ENODEV;
}