c1f732ad76
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>
72 lines
2.9 KiB
Plaintext
72 lines
2.9 KiB
Plaintext
What: /sys/class/genwqe/genwqe<n>_card/version
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Unique bitstream identification e.g.
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'0000000330336283.00000000475a4950'.
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What: /sys/class/genwqe/genwqe<n>_card/appid
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Identifies the currently active card application e.g. 'GZIP'
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for compression/decompression.
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What: /sys/class/genwqe/genwqe<n>_card/type
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Type of the card e.g. 'GenWQE5-A7'.
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What: /sys/class/genwqe/genwqe<n>_card/curr_bitstream
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Currently active bitstream. 1 is default, 0 is backup.
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What: /sys/class/genwqe/genwqe<n>_card/next_bitstream
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Interface to set the next bitstream to be used.
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What: /sys/class/genwqe/genwqe<n>_card/reload_bitstream
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Date: May 2014
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Contact: klebers@linux.vnet.ibm.com
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Description: Interface to trigger a PCIe card reset to reload the bitstream.
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sudo sh -c 'echo 1 > \
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/sys/class/genwqe/genwqe0_card/reload_bitstream'
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If successfully, the card will come back with the bitstream set
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on 'next_bitstream'.
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What: /sys/class/genwqe/genwqe<n>_card/tempsens
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Interface to read the cards temperature sense register.
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What: /sys/class/genwqe/genwqe<n>_card/freerunning_timer
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Interface to read the cards free running timer.
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Used for performance and utilization measurements.
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What: /sys/class/genwqe/genwqe<n>_card/queue_working_time
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Interface to read queue working time.
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Used for performance and utilization measurements.
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What: /sys/class/genwqe/genwqe<n>_card/state
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: State of the card: "unused", "used", "error".
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What: /sys/class/genwqe/genwqe<n>_card/base_clock
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Base clock frequency of the card.
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What: /sys/class/genwqe/genwqe<n>_card/device/sriov_numvfs
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Enable VFs (1..15):
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sudo sh -c 'echo 15 > \
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/sys/bus/pci/devices/0000\:1b\:00.0/sriov_numvfs'
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Disable VFs:
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Write a 0 into the same sysfs entry.
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