[dpdk-dev] [PATCH v2 19/20] doc: add ICE description and update release note

Lu, Wenzhuo wenzhuo.lu at intel.com
Thu Dec 6 07:35:30 CET 2018


Hi Vipin,


> -----Original Message-----
> From: Varghese, Vipin
> Sent: Thursday, December 6, 2018 2:26 PM
> To: Lu, Wenzhuo <wenzhuo.lu at intel.com>; dev at dpdk.org
> Subject: RE: [dpdk-dev] [PATCH v2 19/20] doc: add ICE description and
> update release note
> 
> snipped
> > > > > Thanks Wenzhuo
> > > > >
> > > > > snipped
> > > > > > >
> > > > > > > Do we support Traffic Manager and Inline Crypto? If not, can
> > > > > > > we add this also to limitations?
> > > > > > The style is only listed supported features here. I don't
> > > > > > think we'll list everything not supported as limitation.
> > > > > Thanks for the correction in format, hence the suggested action
> > > > > item is update limitation section to state what is not supported.
> > > > >
> > > > > > The same below.
> > > > > >
> > > > > > >
> > > > > > > > +FW version           = Y
> > > > > > > > +Module EEPROM dump   = Y
> > > > > > > > +Multiprocess aware   = Y
> > > > > > > > +BSD nic_uio          = Y
> > > > > > > > +Linux UIO            = Y
> > > > > > > > +Linux VFIO           = Y
> > > > > > > > +x86-32               = Y
> > > > > > > > +x86-64               = Y
> > > > > > >
> > > > > > > Is cross compile for ARM and PPC disabled since it uses
> > > > > > > Intel specific
> > > ISA?
> > > > > > > Should this be added to limitations?
> > > > > Is powerpc and arm cross build with non avx and sse ISA supported?
> > > > > If no, will default '.config' has 'ICE_PMD=n'?
> > > > Yes, it should be. Currently at least all the Intel NICs set 'y' here.
> > > > If any problem, we should handle it as bug.
> > > So my understanding from 'yes' is ICE_DSI PMD is having minimum
> > > scalar functions which is cross build successful for ARM and
> > > powerpc. Hence you are leaving it as '=y' like other NIC.
> > >
> > > If above is true, why is arm and PowerPC not added to your
> documentation?
> > It's a good question. If you check the history, you'll find the arm
> > and powerpc support is updated by the arm and powerpc maintainers. It
> > means ideally we believe it supports these platforms, but we don't
> > have any of these platform to confirm that.
> Perfect, please add the right team members in 'to' so they can update the
> same.
Good suggestion. I'll cc them when sending the new version. But we cannot expect there's a quick update because ice is a new device.

> 
> >
> > >
> > > >
> > > > >
> > > > > > >
> > > > > > >
> > > > > > > Snipped
> > > > > > >
> > > > > > > > +
> > > > > > > > +Config File Options
> > > > > > > > +~~~~~~~~~~~~~~~~~~~
> > > > > > > > +
> > > > > > > > +The following options can be modified in the ``config`` file.
> > > > > > > > +Please note that enabling debugging options may affect
> > > > > > > > +system
> > > > > > > performance.
> > > > > > >
> > > > > > > Do we see real performance variance? If yes, can we
> > > > > > > highlight this in info section?
> > > > > > IMH, we could get different numbers because of different scenarios.
> > > > > > It's only a reminder to not enable debug.
> > > > > Thanks, but then wording should 'Note: enabling debug option for
> > > > > ICE will have difference in performance. Hence recommendation is
> > > > > not to enable unless for debugging the ICE PMD.'
> > > > > >
> > > > > > >
> > > > > > > snipped



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