pktcdvd: remove driver.
Way back in 2016 in commit 5a8b187c61 ("pktcdvd: mark as unmaintained
and deprecated") this driver was marked as "will be removed soon". 5
years seems long enough to have it stick around after that, so finally
remove the thing now.
Reported-by: Christoph Hellwig <hch@infradead.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Thomas Maier <balagi@justmail.de>
Cc: Peter Osterlund <petero2@telia.com>
Cc: linux-block@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221202182758.1339039-1-gregkh@linuxfoundation.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Greg Kroah-Hartman
Jens Axboe
parent
1d6df9d352
commit
f40eb99897
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@ -1,18 +0,0 @@
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What: /sys/kernel/debug/pktcdvd/pktcdvd[0-7]
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Date: Oct. 2006
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KernelVersion: 2.6.20
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Contact: Thomas Maier <balagi@justmail.de>
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Description:
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The pktcdvd module (packet writing driver) creates
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these files in debugfs:
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/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/
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==== ====== ====================================
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info 0444 Lots of driver statistics and infos.
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==== ====== ====================================
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Example::
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cat /sys/kernel/debug/pktcdvd/pktcdvd0/info
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@ -1,97 +0,0 @@
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sysfs interface
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---------------
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The pktcdvd module (packet writing driver) creates the following files in the
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sysfs: (<devid> is in the format major:minor)
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What: /sys/class/pktcdvd/add
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What: /sys/class/pktcdvd/remove
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What: /sys/class/pktcdvd/device_map
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Date: Oct. 2006
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KernelVersion: 2.6.20
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Contact: Thomas Maier <balagi@justmail.de>
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Description:
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========== ==============================================
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add (WO) Write a block device id (major:minor) to
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create a new pktcdvd device and map it to the
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block device.
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remove (WO) Write the pktcdvd device id (major:minor)
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to remove the pktcdvd device.
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device_map (RO) Shows the device mapping in format:
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pktcdvd[0-7] <pktdevid> <blkdevid>
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========== ==============================================
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What: /sys/class/pktcdvd/pktcdvd[0-7]/dev
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What: /sys/class/pktcdvd/pktcdvd[0-7]/uevent
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Date: Oct. 2006
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KernelVersion: 2.6.20
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Contact: Thomas Maier <balagi@justmail.de>
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Description:
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dev: (RO) Device id
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uevent: (WO) To send a uevent
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What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_started
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What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_finished
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What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_written
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What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read
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What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read_gather
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What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/reset
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Date: Oct. 2006
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KernelVersion: 2.6.20
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Contact: Thomas Maier <balagi@justmail.de>
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Description:
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packets_started: (RO) Number of started packets.
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packets_finished: (RO) Number of finished packets.
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kb_written: (RO) kBytes written.
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kb_read: (RO) kBytes read.
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kb_read_gather: (RO) kBytes read to fill write packets.
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reset: (WO) Write any value to it to reset
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pktcdvd device statistic values, like
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bytes read/written.
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What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/size
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What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_off
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What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_on
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Date: Oct. 2006
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KernelVersion: 2.6.20
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Contact: Thomas Maier <balagi@justmail.de>
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Description:
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============== ================================================
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size (RO) Contains the size of the bio write queue.
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congestion_off (RW) If bio write queue size is below this mark,
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accept new bio requests from the block layer.
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congestion_on (RW) If bio write queue size is higher as this
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mark, do no longer accept bio write requests
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from the block layer and wait till the pktcdvd
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device has processed enough bio's so that bio
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write queue size is below congestion off mark.
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A value of <= 0 disables congestion control.
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============== ================================================
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Example:
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--------
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To use the pktcdvd sysfs interface directly, you can do::
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# create a new pktcdvd device mapped to /dev/hdc
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echo "22:0" >/sys/class/pktcdvd/add
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cat /sys/class/pktcdvd/device_map
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# assuming device pktcdvd0 was created, look at stat's
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cat /sys/class/pktcdvd/pktcdvd0/stat/kb_written
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# print the device id of the mapped block device
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fgrep pktcdvd0 /sys/class/pktcdvd/device_map
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# remove device, using pktcdvd0 device id 253:0
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echo "253:0" >/sys/class/pktcdvd/remove
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@ -16367,13 +16367,6 @@ S: Supported
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F: Documentation/devicetree/bindings/input/pine64,pinephone-keyboard.yaml
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F: drivers/input/keyboard/pinephone-keyboard.c
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PKTCDVD DRIVER
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M: linux-block@vger.kernel.org
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S: Orphan
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F: drivers/block/pktcdvd.c
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F: include/linux/pktcdvd.h
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F: include/uapi/linux/pktcdvd.h
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PLANTOWER PMS7003 AIR POLLUTION SENSOR DRIVER
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M: Tomasz Duszynski <tduszyns@gmail.com>
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S: Maintained
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@ -285,49 +285,6 @@ config BLK_DEV_RAM_SIZE
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The default value is 4096 kilobytes. Only change this if you know
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what you are doing.
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config CDROM_PKTCDVD
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tristate "Packet writing on CD/DVD media (DEPRECATED)"
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depends on !UML
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depends on SCSI
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select CDROM
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help
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Note: This driver is deprecated and will be removed from the
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kernel in the near future!
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If you have a CDROM/DVD drive that supports packet writing, say
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Y to include support. It should work with any MMC/Mt Fuji
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compliant ATAPI or SCSI drive, which is just about any newer
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DVD/CD writer.
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Currently only writing to CD-RW, DVD-RW, DVD+RW and DVDRAM discs
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is possible.
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DVD-RW disks must be in restricted overwrite mode.
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See the file <file:Documentation/cdrom/packet-writing.rst>
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for further information on the use of this driver.
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To compile this driver as a module, choose M here: the
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module will be called pktcdvd.
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config CDROM_PKTCDVD_BUFFERS
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int "Free buffers for data gathering"
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depends on CDROM_PKTCDVD
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default "8"
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help
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This controls the maximum number of active concurrent packets. More
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concurrent packets can increase write performance, but also require
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more memory. Each concurrent packet will require approximately 64Kb
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of non-swappable kernel memory, memory which will be allocated when
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a disc is opened for writing.
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config CDROM_PKTCDVD_WCACHE
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bool "Enable write caching"
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depends on CDROM_PKTCDVD
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help
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If enabled, write caching will be set for the CD-R/W device. For now
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this option is dangerous unless the CD-RW media is known good, as we
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don't do deferred write error handling yet.
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config ATA_OVER_ETH
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tristate "ATA over Ethernet support"
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depends on NET
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@ -20,7 +20,6 @@ obj-$(CONFIG_AMIGA_Z2RAM) += z2ram.o
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obj-$(CONFIG_N64CART) += n64cart.o
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obj-$(CONFIG_BLK_DEV_RAM) += brd.o
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obj-$(CONFIG_BLK_DEV_LOOP) += loop.o
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obj-$(CONFIG_CDROM_PKTCDVD) += pktcdvd.o
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obj-$(CONFIG_SUNVDC) += sunvdc.o
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obj-$(CONFIG_BLK_DEV_NBD) += nbd.o
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File diff suppressed because it is too large
Load Diff
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@ -1,197 +0,0 @@
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/*
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* Copyright (C) 2000 Jens Axboe <axboe@suse.de>
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* Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* Packet writing layer for ATAPI and SCSI CD-R, CD-RW, DVD-R, and
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* DVD-RW devices.
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*
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*/
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#ifndef __PKTCDVD_H
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#define __PKTCDVD_H
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#include <linux/blkdev.h>
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#include <linux/completion.h>
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#include <linux/cdrom.h>
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#include <linux/kobject.h>
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#include <linux/sysfs.h>
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#include <linux/mempool.h>
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#include <uapi/linux/pktcdvd.h>
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/* default bio write queue congestion marks */
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#define PKT_WRITE_CONGESTION_ON 10000
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#define PKT_WRITE_CONGESTION_OFF 9000
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struct packet_settings
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{
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__u32 size; /* packet size in (512 byte) sectors */
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__u8 fp; /* fixed packets */
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__u8 link_loss; /* the rest is specified
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* as per Mt Fuji */
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__u8 write_type;
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__u8 track_mode;
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__u8 block_mode;
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};
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/*
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* Very crude stats for now
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*/
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struct packet_stats
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{
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unsigned long pkt_started;
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unsigned long pkt_ended;
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unsigned long secs_w;
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unsigned long secs_rg;
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unsigned long secs_r;
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};
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struct packet_cdrw
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{
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struct list_head pkt_free_list;
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struct list_head pkt_active_list;
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spinlock_t active_list_lock; /* Serialize access to pkt_active_list */
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struct task_struct *thread;
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atomic_t pending_bios;
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};
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/*
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* Switch to high speed reading after reading this many kilobytes
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* with no interspersed writes.
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*/
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#define HI_SPEED_SWITCH 512
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struct packet_iosched
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{
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atomic_t attention; /* Set to non-zero when queue processing is needed */
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int writing; /* Non-zero when writing, zero when reading */
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spinlock_t lock; /* Protecting read/write queue manipulations */
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struct bio_list read_queue;
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struct bio_list write_queue;
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sector_t last_write; /* The sector where the last write ended */
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int successive_reads;
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};
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/*
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* 32 buffers of 2048 bytes
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*/
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#if (PAGE_SIZE % CD_FRAMESIZE) != 0
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#error "PAGE_SIZE must be a multiple of CD_FRAMESIZE"
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#endif
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#define PACKET_MAX_SIZE 128
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#define FRAMES_PER_PAGE (PAGE_SIZE / CD_FRAMESIZE)
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#define PACKET_MAX_SECTORS (PACKET_MAX_SIZE * CD_FRAMESIZE >> 9)
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enum packet_data_state {
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PACKET_IDLE_STATE, /* Not used at the moment */
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PACKET_WAITING_STATE, /* Waiting for more bios to arrive, so */
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/* we don't have to do as much */
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/* data gathering */
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PACKET_READ_WAIT_STATE, /* Waiting for reads to fill in holes */
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PACKET_WRITE_WAIT_STATE, /* Waiting for the write to complete */
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PACKET_RECOVERY_STATE, /* Recover after read/write errors */
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PACKET_FINISHED_STATE, /* After write has finished */
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PACKET_NUM_STATES /* Number of possible states */
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};
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/*
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* Information needed for writing a single packet
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*/
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struct pktcdvd_device;
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struct packet_data
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{
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struct list_head list;
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spinlock_t lock; /* Lock protecting state transitions and */
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/* orig_bios list */
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struct bio_list orig_bios; /* Original bios passed to pkt_make_request */
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/* that will be handled by this packet */
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int write_size; /* Total size of all bios in the orig_bios */
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/* list, measured in number of frames */
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struct bio *w_bio; /* The bio we will send to the real CD */
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/* device once we have all data for the */
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/* packet we are going to write */
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sector_t sector; /* First sector in this packet */
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int frames; /* Number of frames in this packet */
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enum packet_data_state state; /* Current state */
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atomic_t run_sm; /* Incremented whenever the state */
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/* machine needs to be run */
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long sleep_time; /* Set this to non-zero to make the state */
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/* machine run after this many jiffies. */
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atomic_t io_wait; /* Number of pending IO operations */
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atomic_t io_errors; /* Number of read/write errors during IO */
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struct bio *r_bios[PACKET_MAX_SIZE]; /* bios to use during data gathering */
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struct page *pages[PACKET_MAX_SIZE / FRAMES_PER_PAGE];
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int cache_valid; /* If non-zero, the data for the zone defined */
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/* by the sector variable is completely cached */
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/* in the pages[] vector. */
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int id; /* ID number for debugging */
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struct pktcdvd_device *pd;
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};
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struct pkt_rb_node {
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struct rb_node rb_node;
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struct bio *bio;
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};
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struct packet_stacked_data
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{
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struct bio *bio; /* Original read request bio */
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struct pktcdvd_device *pd;
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};
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#define PSD_POOL_SIZE 64
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struct pktcdvd_device
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{
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struct block_device *bdev; /* dev attached */
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dev_t pkt_dev; /* our dev */
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char name[20];
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struct packet_settings settings;
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struct packet_stats stats;
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int refcnt; /* Open count */
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int write_speed; /* current write speed, kB/s */
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int read_speed; /* current read speed, kB/s */
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unsigned long offset; /* start offset */
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__u8 mode_offset; /* 0 / 8 */
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__u8 type;
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unsigned long flags;
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__u16 mmc3_profile;
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__u32 nwa; /* next writable address */
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__u32 lra; /* last recorded address */
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struct packet_cdrw cdrw;
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wait_queue_head_t wqueue;
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spinlock_t lock; /* Serialize access to bio_queue */
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struct rb_root bio_queue; /* Work queue of bios we need to handle */
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int bio_queue_size; /* Number of nodes in bio_queue */
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bool congested; /* Someone is waiting for bio_queue_size
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* to drop. */
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sector_t current_sector; /* Keep track of where the elevator is */
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atomic_t scan_queue; /* Set to non-zero when pkt_handle_queue */
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/* needs to be run. */
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mempool_t rb_pool; /* mempool for pkt_rb_node allocations */
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struct packet_iosched iosched;
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struct gendisk *disk;
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int write_congestion_off;
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int write_congestion_on;
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struct device *dev; /* sysfs pktcdvd[0-7] dev */
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struct dentry *dfs_d_root; /* debugfs: devname directory */
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struct dentry *dfs_f_info; /* debugfs: info file */
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};
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#endif /* __PKTCDVD_H */
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@ -1,112 +0,0 @@
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright (C) 2000 Jens Axboe <axboe@suse.de>
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* Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>
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*
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* May be copied or modified under the terms of the GNU General Public
|
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* License. See linux/COPYING for more information.
|
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*
|
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* Packet writing layer for ATAPI and SCSI CD-R, CD-RW, DVD-R, and
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* DVD-RW devices.
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*
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*/
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#ifndef _UAPI__PKTCDVD_H
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#define _UAPI__PKTCDVD_H
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#include <linux/types.h>
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/*
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* 1 for normal debug messages, 2 is very verbose. 0 to turn it off.
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*/
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#define PACKET_DEBUG 1
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#define MAX_WRITERS 8
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#define PKT_RB_POOL_SIZE 512
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/*
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* How long we should hold a non-full packet before starting data gathering.
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*/
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#define PACKET_WAIT_TIME (HZ * 5 / 1000)
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/*
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* use drive write caching -- we need deferred error handling to be
|
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* able to successfully recover with this option (drive will return good
|
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* status as soon as the cdb is validated).
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*/
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#if defined(CONFIG_CDROM_PKTCDVD_WCACHE)
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#define USE_WCACHING 1
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#else
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#define USE_WCACHING 0
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#endif
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/*
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* No user-servicable parts beyond this point ->
|
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*/
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/*
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* device types
|
||||
*/
|
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#define PACKET_CDR 1
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#define PACKET_CDRW 2
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#define PACKET_DVDR 3
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#define PACKET_DVDRW 4
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|
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/*
|
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* flags
|
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*/
|
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#define PACKET_WRITABLE 1 /* pd is writable */
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#define PACKET_NWA_VALID 2 /* next writable address valid */
|
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#define PACKET_LRA_VALID 3 /* last recorded address valid */
|
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#define PACKET_MERGE_SEGS 4 /* perform segment merging to keep */
|
||||
/* underlying cdrom device happy */
|
||||
|
||||
/*
|
||||
* Disc status -- from READ_DISC_INFO
|
||||
*/
|
||||
#define PACKET_DISC_EMPTY 0
|
||||
#define PACKET_DISC_INCOMPLETE 1
|
||||
#define PACKET_DISC_COMPLETE 2
|
||||
#define PACKET_DISC_OTHER 3
|
||||
|
||||
/*
|
||||
* write type, and corresponding data block type
|
||||
*/
|
||||
#define PACKET_MODE1 1
|
||||
#define PACKET_MODE2 2
|
||||
#define PACKET_BLOCK_MODE1 8
|
||||
#define PACKET_BLOCK_MODE2 10
|
||||
|
||||
/*
|
||||
* Last session/border status
|
||||
*/
|
||||
#define PACKET_SESSION_EMPTY 0
|
||||
#define PACKET_SESSION_INCOMPLETE 1
|
||||
#define PACKET_SESSION_RESERVED 2
|
||||
#define PACKET_SESSION_COMPLETE 3
|
||||
|
||||
#define PACKET_MCN "4a656e734178626f65323030300000"
|
||||
|
||||
#undef PACKET_USE_LS
|
||||
|
||||
#define PKT_CTRL_CMD_SETUP 0
|
||||
#define PKT_CTRL_CMD_TEARDOWN 1
|
||||
#define PKT_CTRL_CMD_STATUS 2
|
||||
|
||||
struct pkt_ctrl_command {
|
||||
__u32 command; /* in: Setup, teardown, status */
|
||||
__u32 dev_index; /* in/out: Device index */
|
||||
__u32 dev; /* in/out: Device nr for cdrw device */
|
||||
__u32 pkt_dev; /* in/out: Device nr for packet device */
|
||||
__u32 num_devices; /* out: Largest device index + 1 */
|
||||
__u32 padding; /* Not used */
|
||||
};
|
||||
|
||||
/*
|
||||
* packet ioctls
|
||||
*/
|
||||
#define PACKET_IOCTL_MAGIC ('X')
|
||||
#define PACKET_CTRL_CMD _IOWR(PACKET_IOCTL_MAGIC, 1, struct pkt_ctrl_command)
|
||||
|
||||
|
||||
#endif /* _UAPI__PKTCDVD_H */
|
||||
Loading…
Reference in New Issue