xref: /kernel/linux/linux-6.6/Documentation/ABI/testing/sysfs-driver-genwqe (revision 62306a36)

What:           /sys/class/genwqe/genwqe<n>_card/version
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Unique bitstream identification e.g.
                '0000000330336283.00000000475a4950'.

What:           /sys/class/genwqe/genwqe<n>_card/appid
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Identifies the currently active card application e.g. 'GZIP'
                for compression/decompression.

What:           /sys/class/genwqe/genwqe<n>_card/type
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Type of the card e.g. 'GenWQE5-A7'.

What:           /sys/class/genwqe/genwqe<n>_card/curr_bitstream
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Currently active bitstream. 1 is default, 0 is backup.

What:           /sys/class/genwqe/genwqe<n>_card/next_bitstream
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Interface to set the next bitstream to be used.

What:           /sys/class/genwqe/genwqe<n>_card/reload_bitstream
Date:           May 2014
Contact:        klebers@linux.vnet.ibm.com
Description:    Interface to trigger a PCIe card reset to reload the bitstream.

		::

                  sudo sh -c 'echo 1 > \
                    /sys/class/genwqe/genwqe0_card/reload_bitstream'

                If successfully, the card will come back with the bitstream set
                on 'next_bitstream'.

What:           /sys/class/genwqe/genwqe<n>_card/tempsens
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Interface to read the cards temperature sense register.

What:           /sys/class/genwqe/genwqe<n>_card/freerunning_timer
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Interface to read the cards free running timer.
                Used for performance and utilization measurements.

What:           /sys/class/genwqe/genwqe<n>_card/queue_working_time
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Interface to read queue working time.
                Used for performance and utilization measurements.

What:           /sys/class/genwqe/genwqe<n>_card/state
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    State of the card: "unused", "used", "error".

What:           /sys/class/genwqe/genwqe<n>_card/base_clock
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Base clock frequency of the card.

What:           /sys/class/genwqe/genwqe<n>_card/device/sriov_numvfs
Date:           Oct 2013
Contact:        haver@linux.vnet.ibm.com
Description:    Enable VFs (1..15)::

                  sudo sh -c 'echo 15 > \
                    /sys/bus/pci/devices/0000\:1b\:00.0/sriov_numvfs'

                Disable VFs::

                  Write a 0 into the same sysfs entry.