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Merge branch 'nfp-enhanced-debug-dump-via-ethtool'

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Simon Horman says:

====================
nfp: enhanced debug dump via ethtool

Add debug dump implementation to the NFP driver. This makes use of
existing ethtool infrastructure.  ethtool -W is used to select the dump
level and ethtool -w is used to dump NFP state.

The existing behaviour of dump level 0, dumping the arm.diag resource, is
preserved. Dump levels greater than 0 are implemented by this patchset and
optionally supported by firmware providing a _abi_dump_spec rtsym. This
rtsym provides a specification, in TLV format, of the information to be
dumped from the NFP at each supported dump level.

Dumps are also structured using a TLVs. They consist a prolog and the data
described int he corresponding dump.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-12-05 15:01:03 -05:00
commit 045203e90e
8 changed files with 892 additions and 8 deletions
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