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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 02:48:55 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-22 02:48:55 +0300
commit616355cc818c6ddadc393fdfd4491f94458cb715 (patch)
treea96907b179ccbeb84cd1df5515cd10c90eb5bd59 /Documentation/ABI
parentb080cee72ef355669cbc52ff55dc513d37433600 (diff)
parent8f9e7b65f833cb9a4b2e2f54a049d74df394d906 (diff)
downloadlinux-616355cc818c6ddadc393fdfd4491f94458cb715.tar.xz
Merge tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block
Pull block updates from Jens Axboe: - BFQ cleanups and fixes (Yu, Zhang, Yahu, Paolo) - blk-rq-qos completion fix (Tejun) - blk-cgroup merge fix (Tejun) - Add offline error return value to distinguish it from an IO error on the device (Song) - IO stats fixes (Zhang, Christoph) - blkcg refcount fixes (Ming, Yu) - Fix for indefinite dispatch loop softlockup (Shin'ichiro) - blk-mq hardware queue management improvements (Ming) - sbitmap dead code removal (Ming, John) - Plugging merge improvements (me) - Show blk-crypto capabilities in sysfs (Eric) - Multiple delayed queue run improvement (David) - Block throttling fixes (Ming) - Start deprecating auto module loading based on dev_t (Christoph) - bio allocation improvements (Christoph, Chaitanya) - Get rid of bio_devname (Christoph) - bio clone improvements (Christoph) - Block plugging improvements (Christoph) - Get rid of genhd.h header (Christoph) - Ensure drivers use appropriate flush helpers (Christoph) - Refcounting improvements (Christoph) - Queue initialization and teardown improvements (Ming, Christoph) - Misc fixes/improvements (Barry, Chaitanya, Colin, Dan, Jiapeng, Lukas, Nian, Yang, Eric, Chengming) * tag 'for-5.18/block-2022-03-18' of git://git.kernel.dk/linux-block: (127 commits) block: cancel all throttled bios in del_gendisk() block: let blkcg_gq grab request queue's refcnt block: avoid use-after-free on throttle data block: limit request dispatch loop duration block/bfq-iosched: Fix spelling mistake "tenative" -> "tentative" sr: simplify the local variable initialization in sr_block_open() block: don't merge across cgroup boundaries if blkcg is enabled block: fix rq-qos breakage from skipping rq_qos_done_bio() block: flush plug based on hardware and software queue order block: ensure plug merging checks the correct queue at least once block: move rq_qos_exit() into disk_release() block: do more work in elevator_exit block: move blk_exit_queue into disk_release block: move q_usage_counter release into blk_queue_release block: don't remove hctx debugfs dir from blk_mq_exit_queue block: move blkcg initialization/destroy into disk allocation/release handler sr: implement ->free_disk to simplify refcounting sd: implement ->free_disk to simplify refcounting sd: delay calling free_opal_dev sd: call sd_zbc_release_disk before releasing the scsi_device reference ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/stable/sysfs-block49
1 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index 8dd3e84a8aad..e8797cd09aff 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -155,6 +155,55 @@ Description:
last zone of the device which may be smaller.
+What: /sys/block/<disk>/queue/crypto/
+Date: February 2022
+Contact: linux-block@vger.kernel.org
+Description:
+ The presence of this subdirectory of /sys/block/<disk>/queue/
+ indicates that the device supports inline encryption. This
+ subdirectory contains files which describe the inline encryption
+ capabilities of the device. For more information about inline
+ encryption, refer to Documentation/block/inline-encryption.rst.
+
+
+What: /sys/block/<disk>/queue/crypto/max_dun_bits
+Date: February 2022
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] This file shows the maximum length, in bits, of data unit
+ numbers accepted by the device in inline encryption requests.
+
+
+What: /sys/block/<disk>/queue/crypto/modes/<mode>
+Date: February 2022
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] For each crypto mode (i.e., encryption/decryption
+ algorithm) the device supports with inline encryption, a file
+ will exist at this location. It will contain a hexadecimal
+ number that is a bitmask of the supported data unit sizes, in
+ bytes, for that crypto mode.
+
+ Currently, the crypto modes that may be supported are:
+
+ * AES-256-XTS
+ * AES-128-CBC-ESSIV
+ * Adiantum
+
+ For example, if a device supports AES-256-XTS inline encryption
+ with data unit sizes of 512 and 4096 bytes, the file
+ /sys/block/<disk>/queue/crypto/modes/AES-256-XTS will exist and
+ will contain "0x1200".
+
+
+What: /sys/block/<disk>/queue/crypto/num_keyslots
+Date: February 2022
+Contact: linux-block@vger.kernel.org
+Description:
+ [RO] This file shows the number of keyslots the device has for
+ use with inline encryption.
+
+
What: /sys/block/<disk>/queue/dax
Date: June 2016
Contact: linux-block@vger.kernel.org