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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/ABI/testing/sysfs-driver-qat | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-qat')
-rw-r--r-- | Documentation/ABI/testing/sysfs-driver-qat | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat new file mode 100644 index 000000000..185f81a2a --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-qat @@ -0,0 +1,49 @@ +What: /sys/bus/pci/devices/<BDF>/qat/state +Date: June 2022 +KernelVersion: 5.20 +Contact: qat-linux@intel.com +Description: (RW) Reports the current state of the QAT device. Write to + the file to start or stop the device. + + The values are: + + * up: the device is up and running + * down: the device is down + + + It is possible to transition the device from up to down only + if the device is up and vice versa. + + This attribute is only available for qat_4xxx devices. + +What: /sys/bus/pci/devices/<BDF>/qat/cfg_services +Date: June 2022 +KernelVersion: 5.20 +Contact: qat-linux@intel.com +Description: (RW) Reports the current configuration of the QAT device. + Write to the file to change the configured services. + + The values are: + + * sym;asym: the device is configured for running crypto + services + * dc: the device is configured for running compression services + + It is possible to set the configuration only if the device + is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state) + + The following example shows how to change the configuration of + a device configured for running crypto services in order to + run data compression:: + + # cat /sys/bus/pci/devices/<BDF>/qat/state + up + # cat /sys/bus/pci/devices/<BDF>/qat/cfg_services + sym;asym + # echo down > /sys/bus/pci/devices/<BDF>/qat/state + # echo dc > /sys/bus/pci/devices/<BDF>/qat/cfg_services + # echo up > /sys/bus/pci/devices/<BDF>/qat/state + # cat /sys/bus/pci/devices/<BDF>/qat/cfg_services + dc + + This attribute is only available for qat_4xxx devices. |