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linux/Documentation/ABI/testing/sysfs-driver-genwqe

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GenWQE Sysfs interfaces Sysfs interfaces for the GenWQE card. There are attributes to query the version of the bitstream as well as some for the driver. For debugging, please also see the debugfs interfaces of this driver. Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Co-authors: Joerg-Stephan Vogt <jsvogt@de.ibm.com>, Michael Jung <MIJUNG@de.ibm.com>, Michael Ruettger <michael@ibmra.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-09 20:30:43 +08:00
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.
GenWQE: Add sysfs interface for bitstream reload This patch adds an interface on sysfs for userspace to request a card bitstream reload. It sets the appropriate register and try to perform a fundamental reset on the PCIe slot for the card to reload the bitstream from the chosen partition. Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com> Acked-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-04 21:57:50 +08:00
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'.
GenWQE Sysfs interfaces Sysfs interfaces for the GenWQE card. There are attributes to query the version of the bitstream as well as some for the driver. For debugging, please also see the debugfs interfaces of this driver. Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Co-authors: Joerg-Stephan Vogt <jsvogt@de.ibm.com>, Michael Jung <MIJUNG@de.ibm.com>, Michael Ruettger <michael@ibmra.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-12-09 20:30:43 +08:00
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.