[dpdk-dev] [PATCH 04/17] ixgbe: support of unified packet type

Bruce Richardson bruce.richardson at intel.com
Fri Jan 30 04:39:34 CET 2015


On Thu, Jan 29, 2015 at 11:52:03PM +0000, Liang, Cunming wrote:
> 
> 
> > -----Original Message-----
> > From: Richardson, Bruce
> > Sent: Thursday, January 29, 2015 4:30 PM
> > To: Zhang, Helin
> > Cc: dev at dpdk.org; Cao, Waterman; Liang, Cunming; Liu, Jijiang; Ananyev,
> > Konstantin
> > Subject: Re: [PATCH 04/17] ixgbe: support of unified packet type
> > 
> > On Thu, Jan 29, 2015 at 11:15:52AM +0800, Helin Zhang wrote:
> > > To unify packet types among all PMDs, bit masks of packet type for
> > > ol_flags are replaced by unified packet type for Vector PMD.
> > >
> > 
> > Two suggestions on the commit log:
> > 1. Can you add scalar and vector into the titles to make it clear how this
> > patch and the previous ones differ
> > 2. Can you add a note calling out performance impacts for this patch. If no
> > performance impacts, then please note that for reviewers.
> [Liang, Cunming] Accept, will update it in v2.
> For performance, lose 1 cycle per packet during 4x10GE io fwd loopback unit test.
> 
Good to know, thanks.

/Bruce


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