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19cdbdb7cd
kernel test robot and Stephen Rothwell reported htmldocs warning:
Documentation/ABI/testing/sysfs-driver-qat:24: WARNING: Unexpected indentation.
The warning isn't caused by Date: field pointed by the warning, but rather
by sysfs example that isn't in literal code block.
Add the code block marker.
Link: https://lore.kernel.org/linux-next/20220711204932.333379b4@canb.auug.org.au/
Link: https://lore.kernel.org/linux-doc/202207090803.TEGI95qw-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes: d4cfb144f6 ("crypto: qat - expose device config through sysfs for 4xxx")
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Cc: Wojciech Ziemba <wojciech.ziemba@intel.com>
Cc: Adam Guerin <adam.guerin@intel.com>
Cc: Fiona Trahe <fiona.trahe@intel.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Vladis Dronov <vdronov@redhat.com>
Cc: Tomasz Kowallik <tomaszx.kowalik@intel.com>
Cc: linux-crypto@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: Vladis Dronov <vdronov@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
61 lines
1.8 KiB
Text
61 lines
1.8 KiB
Text
What: /sys/bus/pci/devices/<BDF>/qat/state
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Date: June 2022
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KernelVersion: 5.20
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Contact: qat-linux@intel.com
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Description: Reports the current state of the QAT device and allows to
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change it.
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This attribute is RW.
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Returned values:
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up: the device is up and running
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down: the device is down
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Allowed values:
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up: initialize and start the device
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down: stop the device and bring it down
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It is possible to transition the device from up to down only
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if the device is up and vice versa.
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This attribute is only available for qat_4xxx devices.
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What: /sys/bus/pci/devices/<BDF>/qat/cfg_services
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Date: June 2022
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KernelVersion: 5.20
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Contact: qat-linux@intel.com
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Description: Reports the current configuration of the QAT device and allows
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to change it.
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This attribute is RW.
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Returned values:
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sym;asym: the device is configured for running
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crypto services
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dc: the device is configured for running
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compression services
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Allowed values:
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sym;asym: configure the device for running
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crypto services
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dc: configure the device for running
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compression services
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It is possible to set the configuration only if the device
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is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state)
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The following example shows how to change the configuration of
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a device configured for running crypto services in order to
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run data compression::
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# cat /sys/bus/pci/devices/<BDF>/qat/state
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up
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# cat /sys/bus/pci/devices/<BDF>/qat/cfg_services
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sym;asym
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# echo down > /sys/bus/pci/devices/<BDF>/qat/state
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# echo dc > /sys/bus/pci/devices/<BDF>/qat/cfg_services
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# echo up > /sys/bus/pci/devices/<BDF>/qat/state
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# cat /sys/bus/pci/devices/<BDF>/qat/cfg_services
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dc
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This attribute is only available for qat_4xxx devices.
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