[dpdk-dev] [PATCH v3 00/13] eal: replace calls to rte_panic and refrain from new instances
Burakov, Anatoly
anatoly.burakov at intel.com
Mon Apr 16 13:22:56 CEST 2018
On 13-Apr-18 7:30 PM, Arnon Warshavsky wrote:
> The purpose of this patch series is to cleanup the library code
> from paths that end up aborting the process,
> and move to checking error values, in order to allow the running process
> perform an orderly teardown or other mitigation of the event.
>
> This patch modifies the majority of rte_panic calls
> under lib and drivers, and replaces them with a log message
> and an error return code according to context,
> that can be propagated up the call stack.
>
> - Focus was given to the dpdk initialization path
> - Some of the panic calls within drivers were left in place where
> the call is from within an interrupt or calls that are
> on the data path,where there is no simple applicative
> route to propagate the error to temination.
> These should be handled by the driver maintainers.
> - In order to avoid breaking ABI where panic was called from public
> void functions, a panic state variable was introduced so that
> it can be queried after calling these void functions.
> This tool place for a single function call.
> - local void functions with no api were changed to retrun a value
> where needed
> - No change took place in example and test files
> - No change took place for debug assertions calling panic
> - A new function was added to devtools/checkpatches.sh
> in order to prevent new additions of calls to rte_panic
> under lib and drivers.
>
> Keep calm and don't panic
>
> ---
>
> v2:
> - reformat error messages so that literal string are in the same line
> - fix typo in commit message
> - add new return code to doxigen of rte_memzone_free()
>
> v3:
> - submit all 13 patches changed and unchanged in the same patchset
>
This patchset needs to be rebased. There were a few changes that make
some of the patches unnecessary.
Changes in patch 7 and 9 were addressed in earlier memory hotplug
patchset, and are no longer applicable. Some things may have changed for
patch 12 as well.
--
Thanks,
Anatoly
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