Changes in sysfs-block-device

1b22cfb1 - scsi: core: Allow enabling and disabling command duration limits

Thu, 11 May 2023 01:13:42 +0000

scsi: core: Allow enabling and disabling command duration limitsAdd the sysfs scsi_device attribute cdl_enable to allow a user to enable ordisable a device command duration limits feature. CDL is disabled bydefault. This feature must be explicitly enabled by a user by setting thecdl_enable attribute to 1.The new function scsi_cdl_enable() does not do anything beside setting thecdl_enable field of struct scsi_device in the case of a (real) SCSI device(e.g. a SAS HDD). For ATA devices, the command duration limits featureneeds to be enabled/disabled using the ATA feature sub-page of the controlmode page. To do so, the scsi_cdl_enable() function checks if this modepage is supported using scsi_mode_sense(). If it is, scsi_mode_select() isused to enable and disable CDL.Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Co-developed-by: Niklas Cassel Signed-off-by: Niklas Cassel Link: https://lore.kernel.org/r/20230511011356.227789-10-nks@flawful.orgSigned-off-by: Martin K. Petersen List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

62488520 - scsi: core: Detect support for command duration limits

Thu, 11 May 2023 01:13:41 +0000

scsi: core: Detect support for command duration limitsIntroduce the function scsi_cdl_check() to detect if a device supportscommand duration limits (CDL). Support for the READ 16, WRITE 16, READ 32and WRITE 32 commands are checked using the function scsi_report_opcode()to probe the rwcdlp and cdlp bits as they indicate the mode page definingthe command duration limits descriptors that apply to the command beingtested.If any of these commands support CDL, the field cdl_supported of structscsi_device is set to 1 to indicate that the device supports CDL.Support for CDL for a device is advertizes through sysfs using the newcdl_supported device attribute. This attribute value is 1 for a devicesupporting CDL and 0 otherwise.Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Co-developed-by: Niklas Cassel Signed-off-by: Niklas Cassel Link: https://lore.kernel.org/r/20230511011356.227789-9-nks@flawful.orgSigned-off-by: Martin K. Petersen List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

f5975d18 - docs: sysfs-block-device: document ncq_prio_supported

Mon, 16 Aug 2021 01:44:56 +0000

docs: sysfs-block-device: document ncq_prio_supportedAdd documentation for the new device attribute file ncq_prio_supported,and its SAS HBA equivalent sas_ncq_prio_supported.Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Link: https://lore.kernel.org/r/20210816014456.2191776-12-damien.lemoal@wdc.comSigned-off-by: Jens Axboe List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

5b8a2345 - docs: sysfs-block-device: improve ncq_prio_enable documentation

Mon, 16 Aug 2021 01:44:55 +0000

docs: sysfs-block-device: improve ncq_prio_enable documentationNCQ priority is an optional feature of the NCQ feature set and shouldnot be confused with the NCQ feature set itself. Clarify thedescription of the ncq_prio_enable attribute to avoid this confusion.Also add the missing documentation for the equivalentsas_ncq_prio_enable attribute.Signed-off-by: Niklas Cassel Signed-off-by: Damien Le Moal Reviewed-by: Hannes Reinecke Link: https://lore.kernel.org/r/20210816014456.2191776-11-damien.lemoal@wdc.comSigned-off-by: Jens Axboe List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

34433332 - docs: ABI: testing: make the files compatible with ReST output

Fri, 30 Oct 2020 07:40:39 +0000

docs: ABI: testing: make the files compatible with ReST outputSome files over there won't parse well by Sphinx.Fix them.Acked-by: Jonathan Cameron # for IIOAcked-by: Fabrice Gasnier Acked-by: Jonathan Corbet Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/58cf3c2d611e0197fb215652719ebd82ca2658db.1604042072.git.mchehab+huawei@kernel.orgSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

9e1cbede - docs: admin-guide: add laptops documentation

Thu, 13 Jun 2019 18:07:43 +0000

docs: admin-guide: add laptops documentationThe docs under Documentation/laptops contain users specificinformation.Signed-off-by: Mauro Carvalho Chehab Acked-by: Andy Shevchenko List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

b02f1651 - docs: laptops: convert to ReST

Thu, 18 Apr 2019 14:12:57 +0000

docs: laptops: convert to ReSTRename the laptops documentation files to ReST, add anindex for them and adjust in order to produce a nice htmloutput via the Sphinx build system.At its new index.rst, let's add a :orphan: while this is not linked tothe main index.rst file, in order to avoid build warnings.Signed-off-by: Mauro Carvalho Chehab Acked-by: Andy Shevchenko List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device

0a65e125 - libata: update documentation for sysfs interfaces

Tue, 13 Feb 2018 08:18:16 +0000

libata: update documentation for sysfs interfacesDcoumentation has been added by parsing through git commit history andreading code. This might be useful for scripting and tracking changes inthe ABI.I do not have complete descriptions for the following 3 attributes; theyhave been annotated with the comment [to be documented] - /sys/class/scsi_host/hostX/ahci_port_cmd /sys/class/scsi_host/hostX/ahci_host_caps /sys/class/scsi_host/hostX/ahci_host_cap2Signed-off-by: Aishwarya Pant Signed-off-by: Tejun Heo List of files: /linux-6.15/Documentation/ABI/testing/sysfs-block-device