diff options
| author | Ciunas Bennett <ciunas.bennett@intel.com> | 2023-10-20 15:49:30 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-10-27 18:04:28 +0800 |
| commit | dbc8876dd873a6ac5e3191b419d2de5ca613165f (patch) | |
| tree | 4f23189bcb7203d1eaa23ef6ffdfd8e899df76b6 /Documentation/ABI | |
| parent | db74e16258198094701f18ab4da3410c44ffdb2e (diff) | |
| download | linux-dbc8876dd873a6ac5e3191b419d2de5ca613165f.tar.gz | |
crypto: qat - add rp2svc sysfs attribute
Add the attribute `rp2svc` to the `qat` attribute group. This provides a
way for a user to query a specific ring pair for the type of service
that is currently configured for.
When read, the service will be returned for the defined ring pair.
When written to this value will be stored as the ring pair to return
the service of.
Signed-off-by: Ciunas Bennett <ciunas.bennett@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Damian Muszynski <damian.muszynski@intel.com>
Reviewed-by: Tero Kristo <tero.kristo@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 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-qat b/Documentation/ABI/testing/sysfs-driver-qat index 96834d103a09e2..f24a5ddca94bfe 100644 --- a/Documentation/ABI/testing/sysfs-driver-qat +++ b/Documentation/ABI/testing/sysfs-driver-qat @@ -95,3 +95,35 @@ Description: (RW) This configuration option provides a way to force the device i 0 This attribute is only available for qat_4xxx devices. + +What: /sys/bus/pci/devices/<BDF>/qat/rp2srv +Date: January 2024 +KernelVersion: 6.7 +Contact: qat-linux@intel.com +Description: + (RW) This attribute provides a way for a user to query a + specific ring pair for the type of service that it is currently + configured for. + + When written to, the value is cached and used to perform the + read operation. Allowed values are in the range 0 to N-1, where + N is the max number of ring pairs supported by a device. This + can be queried using the attribute qat/num_rps. + + A read returns the service associated to the ring pair queried. + + The values are: + + * dc: the ring pair is configured for running compression services + * sym: the ring pair is configured for running symmetric crypto + services + * asym: the ring pair is configured for running asymmetric crypto + services + + Example usage:: + + # echo 1 > /sys/bus/pci/devices/<BDF>/qat/rp2srv + # cat /sys/bus/pci/devices/<BDF>/qat/rp2srv + sym + + This attribute is only available for qat_4xxx devices. |