summaryrefslogtreecommitdiff
path: root/Documentation
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-12-02 21:27:58 +0300
committerJens Axboe <axboe@kernel.dk>2022-12-02 22:35:30 +0300
commitf40eb99897af665f11858dd7b56edcb62c3f3c67 (patch)
tree22c77633f71b40fcef7edd19ddda8152f6ac7621 /Documentation
parent1d6df9d352bb2a3c2ddb32851dfcafb417c47762 (diff)
downloadlinux-f40eb99897af665f11858dd7b56edcb62c3f3c67.tar.xz
pktcdvd: remove driver.
Way back in 2016 in commit 5a8b187c61e9 ("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>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/ABI/testing/debugfs-pktcdvd18
-rw-r--r--Documentation/ABI/testing/sysfs-class-pktcdvd97
2 files changed, 0 insertions, 115 deletions
diff --git a/Documentation/ABI/testing/debugfs-pktcdvd b/Documentation/ABI/testing/debugfs-pktcdvd
deleted file mode 100644
index f6f65a4faea0..000000000000
--- a/Documentation/ABI/testing/debugfs-pktcdvd
+++ /dev/null
@@ -1,18 +0,0 @@
-What: /sys/kernel/debug/pktcdvd/pktcdvd[0-7]
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
-
-The pktcdvd module (packet writing driver) creates
-these files in debugfs:
-
-/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/
-
- ==== ====== ====================================
- info 0444 Lots of driver statistics and infos.
- ==== ====== ====================================
-
-Example::
-
- cat /sys/kernel/debug/pktcdvd/pktcdvd0/info
diff --git a/Documentation/ABI/testing/sysfs-class-pktcdvd b/Documentation/ABI/testing/sysfs-class-pktcdvd
deleted file mode 100644
index ba1ce626591d..000000000000
--- a/Documentation/ABI/testing/sysfs-class-pktcdvd
+++ /dev/null
@@ -1,97 +0,0 @@
-sysfs interface
----------------
-The pktcdvd module (packet writing driver) creates the following files in the
-sysfs: (<devid> is in the format major:minor)
-
-What: /sys/class/pktcdvd/add
-What: /sys/class/pktcdvd/remove
-What: /sys/class/pktcdvd/device_map
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
-
- ========== ==============================================
- add (WO) Write a block device id (major:minor) to
- create a new pktcdvd device and map it to the
- block device.
-
- remove (WO) Write the pktcdvd device id (major:minor)
- to remove the pktcdvd device.
-
- device_map (RO) Shows the device mapping in format:
- pktcdvd[0-7] <pktdevid> <blkdevid>
- ========== ==============================================
-
-
-What: /sys/class/pktcdvd/pktcdvd[0-7]/dev
-What: /sys/class/pktcdvd/pktcdvd[0-7]/uevent
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
- dev: (RO) Device id
-
- uevent: (WO) To send a uevent
-
-
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_started
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/packets_finished
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_written
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/kb_read_gather
-What: /sys/class/pktcdvd/pktcdvd[0-7]/stat/reset
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
- packets_started: (RO) Number of started packets.
-
- packets_finished: (RO) Number of finished packets.
-
- kb_written: (RO) kBytes written.
-
- kb_read: (RO) kBytes read.
-
- kb_read_gather: (RO) kBytes read to fill write packets.
-
- reset: (WO) Write any value to it to reset
- pktcdvd device statistic values, like
- bytes read/written.
-
-
-What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/size
-What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_off
-What: /sys/class/pktcdvd/pktcdvd[0-7]/write_queue/congestion_on
-Date: Oct. 2006
-KernelVersion: 2.6.20
-Contact: Thomas Maier <balagi@justmail.de>
-Description:
- ============== ================================================
- size (RO) Contains the size of the bio write queue.
-
- congestion_off (RW) If bio write queue size is below this mark,
- accept new bio requests from the block layer.
-
- congestion_on (RW) If bio write queue size is higher as this
- mark, do no longer accept bio write requests
- from the block layer and wait till the pktcdvd
- device has processed enough bio's so that bio
- write queue size is below congestion off mark.
- A value of <= 0 disables congestion control.
- ============== ================================================
-
-
-Example:
---------
-To use the pktcdvd sysfs interface directly, you can do::
-
- # create a new pktcdvd device mapped to /dev/hdc
- echo "22:0" >/sys/class/pktcdvd/add
- cat /sys/class/pktcdvd/device_map
- # assuming device pktcdvd0 was created, look at stat's
- cat /sys/class/pktcdvd/pktcdvd0/stat/kb_written
- # print the device id of the mapped block device
- fgrep pktcdvd0 /sys/class/pktcdvd/device_map
- # remove device, using pktcdvd0 device id 253:0
- echo "253:0" >/sys/class/pktcdvd/remove