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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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c59330cd7c
Debugfs interfaces for the GenWQE card. Help to debug potential
problems. Dump internal chip state for debugging and failure
determination.
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>
92 lines
3.7 KiB
Plaintext
92 lines
3.7 KiB
Plaintext
What: /sys/kernel/debug/genwqe/genwqe<n>_card/ddcb_info
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: DDCB queue dump used for debugging queueing problems.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_regs
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Dump of the current error registers.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid0
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Internal chip state of UID0 (unit id 0).
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid1
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Internal chip state of UID1.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid2
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Internal chip state of UID2.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_regs
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Dump of the error registers before the last reset of
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the card occured.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid0
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Internal chip state of UID0 before card was reset.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid1
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Internal chip state of UID1 before card was reset.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid2
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Internal chip state of UID2 before card was reset.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/info
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Comprehensive summary of bitstream version and software
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version. Used bitstream and bitstream clocking information.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/err_inject
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Possibility to inject error cases to ensure that the drivers
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error handling code works well.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/vf<0..14>_jobtimeout_msec
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Default VF timeout 250ms. Testing might require 1000ms.
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Using 0 will use the cards default value (whatever that is).
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The timeout depends on the max number of available cards
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in the system and the maximum allowed queue size.
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The driver ensures that the settings are done just before
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the VFs get enabled. Changing the timeouts in flight is not
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possible.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/jobtimer
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Date: Oct 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Dump job timeout register values for PF and VFs.
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Only available for PF.
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What: /sys/kernel/debug/genwqe/genwqe<n>_card/queue_working_time
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Date: Dec 2013
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Contact: haver@linux.vnet.ibm.com
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Description: Dump queue working time register values for PF and VFs.
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Only available for PF.
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