en Copyright 2015 Java http://172.16.0.5:8080/history/linux-6.15/Documentation/ABI/testing/sysfs-driver-qat_rl#db74e162 crypto: qat - add rate limiting sysfs interfaceAdd an interface for the rate limiting feature which allows to add,remove and modify a QAT SLA (Service Level Agreement).This adds a new sysfs attribute group, `qat_rl`, which can be accessedfrom /sys/bus/pci/devices/<BUS:DEV:FUNCTION> with the followinghierarchy: |-+ qat_rl |---- id (RW) # SLA identifier |---- cir (RW) # Committed Information Rate |---- pir (RW) # Peak Information Rate |---- srv (RW) # Service to be rate limited |---- rp (RW) (HEX) # Ring pairs to be rate limited |---- cap_rem (RW) # Remaining capability for a service |---- sla_op (WO) # Allows to perform an operation on an SLAThe API works by setting the appropriate RW attributes and thenissuing a command through the `sla_op`. For example, to create an SLA, auser needs to input the necessary data into the attributes cir, pir, srvand rp and then write into `sla_op` the command `add` to execute theoperation.The API also provides `cap_rem` attribute to get information aboutthe remaining device capability within a certain service which isrequired when setting an SLA.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> List of files: /linux-6.15/Documentation/ABI/testing/sysfs-driver-qat_rl Fri, 20 Oct 2023 13:49:29 +0000 Ciunas Bennett <ciunas.bennett@intel.com>