On Mon, Jun 27, 2022 at 09:36:48AM +0100, Giovanni Cabiddu wrote: > qat_4xxx devices can be configured to allow either crypto or compression > operations. By default, devices are configured statically according > to following rule: > - odd numbered devices assigned to compression services > - even numbered devices assigned to crypto services > > This set exposes two attributes in sysfs that allow to report and change > the state and the configuration of a QAT 4xxx device. > The first, /sys/bus/pci/devices/<BDF>/qat/state, allows to bring a > device down in order to change the configuration, and bring it up again. > The second, /sys/bus/pci/devices/<BDF>/qat/cfg_services, allows to > inspect the current configuration of a device (i.e. crypto or > compression) and change it. > > # 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/state > dc > > Changes from v1: > - Updated target kernel version in documentation (from 5.19 to 5.20). > - Fixed commit message in patch #1 and updated documentation in patch > #4 after review from Vladis Dronov. > > Giovanni Cabiddu (4): > crypto: qat - expose device state through sysfs for 4xxx > crypto: qat - change behaviour of adf_cfg_add_key_value_param() > crypto: qat - relocate and rename adf_sriov_prepare_restart() > crypto: qat - expose device config through sysfs for 4xxx > > Documentation/ABI/testing/sysfs-driver-qat | 61 ++++++ > .../crypto/qat/qat_4xxx/adf_4xxx_hw_data.c | 1 + > .../crypto/qat/qat_4xxx/adf_4xxx_hw_data.h | 1 + > drivers/crypto/qat/qat_4xxx/adf_drv.c | 6 +- > drivers/crypto/qat/qat_common/Makefile | 1 + > .../crypto/qat/qat_common/adf_accel_devices.h | 1 + > drivers/crypto/qat/qat_common/adf_cfg.c | 41 +++- > .../crypto/qat/qat_common/adf_common_drv.h | 3 + > drivers/crypto/qat/qat_common/adf_init.c | 26 +++ > drivers/crypto/qat/qat_common/adf_sriov.c | 28 +-- > drivers/crypto/qat/qat_common/adf_sysfs.c | 191 ++++++++++++++++++ > 11 files changed, 331 insertions(+), 29 deletions(-) > create mode 100644 Documentation/ABI/testing/sysfs-driver-qat > create mode 100644 drivers/crypto/qat/qat_common/adf_sysfs.c All applied. Thanks. -- Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
