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authorFrank Haverkamp <haver@linux.vnet.ibm.com>2013-12-09 16:30:42 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-19 04:51:15 +0400
commitc59330cd7c15d550c4edbb8cd49d48e6d65ed47f (patch)
treee7447d7a2b6434f647ccc8c2b5429640463a49b3 /Documentation/ABI
parent67f4addbb8fe68b9de8e8042c5367bd17db36520 (diff)
downloadlinux-c59330cd7c15d550c4edbb8cd49d48e6d65ed47f.tar.xz
GenWQE Debugfs interfaces
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>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/debugfs-driver-genwqe91
1 files changed, 91 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-driver-genwqe b/Documentation/ABI/testing/debugfs-driver-genwqe
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+What: /sys/kernel/debug/genwqe/genwqe<n>_card/ddcb_info
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: DDCB queue dump used for debugging queueing problems.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_regs
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Dump of the current error registers.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid0
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Internal chip state of UID0 (unit id 0).
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid1
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Internal chip state of UID1.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/curr_dbg_uid2
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Internal chip state of UID2.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_regs
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Dump of the error registers before the last reset of
+ the card occured.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid0
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Internal chip state of UID0 before card was reset.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid1
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Internal chip state of UID1 before card was reset.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/prev_dbg_uid2
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Internal chip state of UID2 before card was reset.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/info
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Comprehensive summary of bitstream version and software
+ version. Used bitstream and bitstream clocking information.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/err_inject
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Possibility to inject error cases to ensure that the drivers
+ error handling code works well.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/vf<0..14>_jobtimeout_msec
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Default VF timeout 250ms. Testing might require 1000ms.
+ Using 0 will use the cards default value (whatever that is).
+
+ The timeout depends on the max number of available cards
+ in the system and the maximum allowed queue size.
+
+ The driver ensures that the settings are done just before
+ the VFs get enabled. Changing the timeouts in flight is not
+ possible.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/jobtimer
+Date: Oct 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Dump job timeout register values for PF and VFs.
+ Only available for PF.
+
+What: /sys/kernel/debug/genwqe/genwqe<n>_card/queue_working_time
+Date: Dec 2013
+Contact: haver@linux.vnet.ibm.com
+Description: Dump queue working time register values for PF and VFs.
+ Only available for PF.