diff options
Diffstat (limited to 'Documentation/ABI/testing/sysfs-block')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-block | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block index dea212db9df3..dfad7427817c 100644 --- a/Documentation/ABI/testing/sysfs-block +++ b/Documentation/ABI/testing/sysfs-block @@ -244,7 +244,7 @@ Description: What: /sys/block/<disk>/queue/zoned Date: September 2016 -Contact: Damien Le Moal <damien.lemoal@hgst.com> +Contact: Damien Le Moal <damien.lemoal@wdc.com> Description: zoned indicates if the device is a zoned block device and the zone model of the device if it is indeed zoned. @@ -259,6 +259,14 @@ Description: zone commands, they will be treated as regular block devices and zoned will report "none". +What: /sys/block/<disk>/queue/nr_zones +Date: November 2018 +Contact: Damien Le Moal <damien.lemoal@wdc.com> +Description: + nr_zones indicates the total number of zones of a zoned block + device ("host-aware" or "host-managed" zone model). For regular + block devices, the value is always 0. + What: /sys/block/<disk>/queue/chunk_sectors Date: September 2016 Contact: Hannes Reinecke <hare@suse.com> @@ -268,6 +276,15 @@ Description: indicates the size in 512B sectors of the RAID volume stripe segment. For a zoned block device, either host-aware or host-managed, chunk_sectors indicates the - size of 512B sectors of the zones of the device, with + size in 512B sectors of the zones of the device, with the eventual exception of the last zone of the device which may be smaller. + +What: /sys/block/<disk>/queue/io_timeout +Date: November 2018 +Contact: Weiping Zhang <zhangweiping@didiglobal.com> +Description: + io_timeout is the request timeout in milliseconds. If a request + does not complete in this time then the block driver timeout + handler is invoked. That timeout handler can decide to retry + the request, to fail it or to start a device recovery strategy. |