[dpdk-dev] [PATCH v2 1/4] ethdev: add Rx offload outer UDP checksum definition

Jerin Jacob jerin.jacob at caviumnetworks.com
Sat Oct 6 10:15:38 CEST 2018


-----Original Message-----
> Date: Sat, 06 Oct 2018 00:44:52 +0200
> From: Thomas Monjalon <thomas at monjalon.net>
> To: Ferruh Yigit <ferruh.yigit at intel.com>, Jerin Jacob
>  <jerin.jacob at caviumnetworks.com>, Andrew Rybchenko
>  <arybchenko at solarflare.com>
> Cc: Wenzhuo Lu <wenzhuo.lu at intel.com>, Jingjing Wu <jingjing.wu at intel.com>,
>  Bernard Iremonger <bernard.iremonger at intel.com>, John McNamara
>  <john.mcnamara at intel.com>, Marko Kovacevic <marko.kovacevic at intel.com>,
>  Olivier Matz <olivier.matz at 6wind.com>, dev at dpdk.org, shahafs at mellanox.com,
>  "Ananyev, Konstantin" <konstantin.ananyev at intel.com>,
>  didier.pallard at 6wind.com
> Subject: Re: [dpdk-dev] [PATCH v2 1/4] ethdev: add Rx offload outer UDP
>  checksum definition
> 
> 
> 05/10/2018 22:04, Ferruh Yigit:
> > On 10/4/2018 6:59 AM, Jerin Jacob wrote:
> > > From: Andrew Rybchenko <arybchenko at solarflare.com>
> > >> On 03.10.2018 21:14, Jerin Jacob wrote:
> > >>> From: Andrew Rybchenko <arybchenko at solarflare.com>
> > >>>> On 03.10.2018 20:12, Jerin Jacob wrote:
> > >>>>> From: Jerin Jacob <jerin.jacob at caviumnetworks.com>
> > >>>>>> From: Andrew Rybchenko <arybchenko at solarflare.com>
> > >>>>>>> 3. PKT_RX_L4_CKSUM_MASK description says nothing if it is inner or outer.
> > >>>>>>>      May be it is not directly related to changeset, but I think it would be really
> > >>>>>>>      useful to clarify it.
> > >>>>>> I will update the comment.
> > >>>>> Hi Andrew,
> > >>>>>
> 
> However, we should re-visit the flag PKT_RX_EIP_CKSUM_BAD.

Do we need to block this patch due to the exiting PKT_RX_EIP_CKSUM_BAD
definition?

I already added the author of the PKT_RX_EIP_CKSUM_BAD flag and ethdev and mbuf
maintainers in this list. So what else I need make forward progress
on this patch?

I think, the definition of PKT_RX_EIP_CKSUM_BAD based on HW capability. It
is safe to assume that ALL HW can support CKSUM BAD if the feature is
available and hence it is more portable.

> 
> 


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