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| author | Adam Guerin <adam.guerin@intel.com> | 2023-06-09 17:38:22 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-06-16 20:30:35 +0800 |
| commit | 5005327514064840c6713b793cd80c5b98afba3d (patch) | |
| tree | de6b87c64eefa95b14f10563176e019291fbec63 /Documentation/ABI | |
| parent | 10484c647af6b1952d1675e83be9cc976cdb6a96 (diff) | |
| download | lwn-5005327514064840c6713b793cd80c5b98afba3d.tar.gz lwn-5005327514064840c6713b793cd80c5b98afba3d.zip | |
crypto: qat - extend configuration for 4xxx
A QAT GEN4 device can be currently configured for crypto (sym;asym) or
compression (dc).
This patch extends the configuration to support more variations of these
services, download the correct FW images on the device and report the
correct capabilities on the device based on the configured service.
The device can now be configured with the following services:
"sym", "asym", "dc", "sym;asym", "asym;sym", "sym;dc", "dc;sym",
"asym;dc", "dc;asym".
With this change, the configuration "sym", "asym", "sym;dc", "dc;sym",
"asym;dc", "dc;asym" will be accessible only via userspace, i.e. the driver
for those configurations will not register into the crypto framework.
Support for such configurations in kernel will be enabled in a later
patch.
The pairs "sym;asym" and "asym;sym" result in identical device config.
As do "sym;dc", "dc;sym", and "asym;dc", "dc;asym".
Signed-off-by: Adam Guerin <adam.guerin@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-driver-qat | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat index 087842b1969e..e6d427c41bee 100644 --- a/Documentation/ABI/testing/sysfs-driver-qat +++ b/Documentation/ABI/testing/sysfs-driver-qat @@ -27,7 +27,18 @@ Description: (RW) Reports the current configuration of the QAT device. * sym;asym: the device is configured for running crypto services + * asym;sym: identical to sym;asym * dc: the device is configured for running compression services + * sym: the device is configured for running symmetric crypto + services + * asym: the device is configured for running asymmetric crypto + services + * asym;dc: the device is configured for running asymmetric + crypto services and compression services + * dc;asym: identical to asym;dc + * sym;dc: the device is configured for running symmetric crypto + services and compression services + * dc;sym: identical to sym;dc It is possible to set the configuration only if the device is in the `down` state (see /sys/bus/pci/devices/<BDF>/qat/state) |