On Thu, Jul 29, 2021 at 10:31:45AM +, Gregory Etelson wrote:
> Hello Olivier,
>
> [:snip:]
> > >
> > > Correct. Inner checksum is offloaded and outer computed in software.
> >
> > I think this approach is not sane: the value of the outer checksum depends
> > on
> > the inner checksum, so it
Hello Olivier,
[:snip:]
> >
> > Correct. Inner checksum is offloaded and outer computed in software.
>
> I think this approach is not sane: the value of the outer checksum depends on
> the inner checksum, so it has to be calculated after. There is a comment in
> the
> code about this:
>
>
On Wed, Jul 28, 2021 at 04:07:51PM +, Gregory Etelson wrote:
> Hello Oliver,
>
> Please see my comments below
>
> > On Tue, Jul 27, 2021 at 04:07:57PM +0300, Gregory Etelson wrote:
> > > TX checksum of a tunnelled packet can be calculated for outer headers
> > > only or for both outer and inn
Hello Oliver,
Please see my comments below
> On Tue, Jul 27, 2021 at 04:07:57PM +0300, Gregory Etelson wrote:
> > TX checksum of a tunnelled packet can be calculated for outer headers
> > only or for both outer and inner parts. The calculation method is
> > determined by application.
> > If TX ch
Hi Gregory,
Few comments below.
On Tue, Jul 27, 2021 at 04:07:57PM +0300, Gregory Etelson wrote:
> TX checksum of a tunnelled packet can be calculated for outer headers
> only or for both outer and inner parts. The calculation method is
> determined by application.
> If TX checksum calculation ca
On Tue, Jul 27, 2021 at 6:08 AM Gregory Etelson wrote:
>
> TX checksum of a tunnelled packet can be calculated for outer headers
> only or for both outer and inner parts. The calculation method is
> determined by application.
> If TX checksum calculation can be offloaded, hardware ignores
> existi
Hello,
Please see below.
Regards,
Gregory
> > Subject: [PATCH v2] app/testpmd: fix TX checksum calculation for
> > tunnel
> >
> > TX checksum of a tunnelled packet can be calculated for outer headers
> > only or for both outer and inner parts. The calculation method is
> > determined by applicat
> -Original Message-
> From: Gregory Etelson
> Sent: Tuesday, July 27, 2021 21:08
> To: dev@dpdk.org
> Cc: getel...@nvidia.com; Ajit Khaparde ;
> Olivier Matz ; Andrew Rybchenko
> ; Yigit, Ferruh ;
> Thomas Monjalon ; sta...@dpdk.org; Li, Xiaoyun
>
> Subject: [PATCH v2] app/testpmd: fix T
Hi
> -Original Message-
> From: Gregory Etelson
> Sent: Tuesday, July 27, 2021 21:08
> To: dev@dpdk.org
> Cc: getel...@nvidia.com; Ajit Khaparde ;
> Olivier Matz ; Andrew Rybchenko
> ; Yigit, Ferruh ;
> Thomas Monjalon ; sta...@dpdk.org; Li, Xiaoyun
>
> Subject: [PATCH v2] app/testpmd: f
TX checksum of a tunnelled packet can be calculated for outer headers
only or for both outer and inner parts. The calculation method is
determined by application.
If TX checksum calculation can be offloaded, hardware ignores
existing checksum value and replaces it with an updated result.
If TX chec
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