[dpdk-dev] [PATCH v3 1/4] mbuf:add three TX offload flags and change three fields
konstantin.ananyev at intel.com
Fri Nov 28 16:46:49 CET 2014
> -----Original Message-----
> From: Olivier MATZ [mailto:olivier.matz at 6wind.com]
> Sent: Friday, November 28, 2014 11:19 AM
> To: Ananyev, Konstantin; Liu, Jijiang; dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v3 1/4] mbuf:add three TX offload flags and change three fields
> Hi Konstantin,
> On 11/28/2014 12:13 PM, Ananyev, Konstantin wrote:
> >>> For the upper layer, I think there would be no big difference, what ways we will choose.
> >> I think the 2 informations are transversal, and that's why I would
> >> prefer 2 flags. Also, having 2 separate flags would also help to keep
> >> backward compatibility with previous versions.
> > Hmm, not sure how we will break compatibility in that case?
> > If we'll make TX_IP_CKSUM to be 1 bit value (1 << X) then for current drivers nothing should change, no?
> Yes, you're right, sorry.
Actually, you right - squeezing these 3 flags into 2 bits would break backward compatibility.
Sorry, didn't think properly.
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