[dpdk-dev] [PATCHv7 5/6] pmdinfo.py: Add tool to query binaries for hw and other support information

Panu Matilainen pmatilai at redhat.com
Thu Jun 16 14:32:27 CEST 2016

On 06/09/2016 08:47 PM, Neil Horman wrote:
> This tool searches for the primer sting PMD_DRIVER_INFO= in any ELF binary,
> and, if found parses the remainder of the string as a json encoded string,
> outputting the results in either a human readable or raw, script parseable
> format
> Note that, in the case of dynamically linked applications, pmdinfo.py will
> scan for implicitly linked PMDs by searching the specified binaries
> .dynamic section for DT_NEEDED entries that contain the substring
> librte_pmd.  The DT_RUNPATH, LD_LIBRARY_PATH, /usr/lib and /lib are
> searched for these libraries, in that order
> If a file is specified with no path, it is assumed to be a PMD DSO, and the
> LD_LIBRARY_PATH, /usr/lib[64]/ and /lib[64] is searched for it
> Currently the tool can output data in 3 formats:
> a) raw, suitable for scripting, where the raw JSON strings are dumped out
> b) table format (default) where hex pci ids are dumped in a table format
> c) pretty, where a user supplied pci.ids file is used to print out vendor
> and device strings
> Signed-off-by: Neil Horman <nhorman at tuxdriver.com>
> CC: Bruce Richardson <bruce.richardson at intel.com>
> CC: Thomas Monjalon <thomas.monjalon at 6wind.com>
> CC: Stephen Hemminger <stephen at networkplumber.org>
> CC: Panu Matilainen <pmatilai at redhat.com>
> ---
>  mk/rte.sdkinstall.mk |   2 +
>  tools/pmdinfo.py     | 629 +++++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 631 insertions(+)
>  create mode 100755 tools/pmdinfo.py
> diff --git a/mk/rte.sdkinstall.mk b/mk/rte.sdkinstall.mk
> index 68e56b6..dc36df5 100644
> --- a/mk/rte.sdkinstall.mk
> +++ b/mk/rte.sdkinstall.mk
> @@ -126,6 +126,8 @@ install-runtime:
>  	$(Q)$(call rte_mkdir,      $(DESTDIR)$(sbindir))
>  	$(Q)$(call rte_symlink,    $(DESTDIR)$(datadir)/tools/dpdk_nic_bind.py, \
>  	                           $(DESTDIR)$(sbindir)/dpdk_nic_bind)
> +	$(Q)$(call rte_symlink,    $(DESTDIR)$(datadir)/tools/pmdinfo.py, \
> +				   $(DESTDIR)$(bindir)/dpdk-pmdinfo)

The symlink should be with underscore instead of dash for consistency 
with all the other tools, ie dpdk_pmdinfo.

Neil, I already gave you an ack on the series as per the functionality, 
feel free to include that in any future versions of the patch series. 
Minor nits like these are ... well, minor nits from my POV at least.

	- Panu -

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