From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
Subject: Re: [PATCH v2 1/4] ethdev: add Rx offload outer UDP
 checksum	definition
Date: Wed, 3 Oct 2018 09:17:18 +0000
Message-ID: <2601191342CEEE43887BDE71AB9772580102FE152A@IRSMSX106.ger.corp.intel.com>
References: <20180913134707.23698-1-jerin.jacob@caviumnetworks.com>
 <20181002192451.19119-1-jerin.jacob@caviumnetworks.com>
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 <20181003085909.GA9894@jerin>
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Cc: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>, "Wu, Jingjing"
 <jingjing.wu@intel.com>, "Iremonger, Bernard" <bernard.iremonger@intel.com>,
 "Mcnamara, John" <john.mcnamara@intel.com>, "Kovacevic, Marko"
 <marko.kovacevic@intel.com>, Thomas Monjalon <thomas@monjalon.net>, "Yigit,
 Ferruh" <ferruh.yigit@intel.com>, Andrew Rybchenko
 <arybchenko@solarflare.com>, Olivier Matz <olivier.matz@6wind.com>,
 "dev@dpdk.org" <dev@dpdk.org>, "shahafs@mellanox.com" <shahafs@mellanox.com>
To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
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> -----Original Message-----
> From: Jerin Jacob [mailto:jerin.jacob@caviumnetworks.com]
> Sent: Wednesday, October 3, 2018 9:59 AM
> To: Ananyev, Konstantin <konstantin.ananyev@intel.com>
> Cc: Lu, Wenzhuo <wenzhuo.lu@intel.com>; Wu, Jingjing <jingjing.wu@intel.c=
om>; Iremonger, Bernard <bernard.iremonger@intel.com>;
> Mcnamara, John <john.mcnamara@intel.com>; Kovacevic, Marko <marko.kovacev=
ic@intel.com>; Thomas Monjalon
> <thomas@monjalon.net>; Yigit, Ferruh <ferruh.yigit@intel.com>; Andrew Ryb=
chenko <arybchenko@solarflare.com>; Olivier Matz
> <olivier.matz@6wind.com>; dev@dpdk.org; shahafs@mellanox.com
> Subject: Re: [dpdk-dev] [PATCH v2 1/4] ethdev: add Rx offload outer UDP c=
hecksum definition
>=20
> -----Original Message-----
> > Date: Wed, 3 Oct 2018 08:53:22 +0000
> > From: "Ananyev, Konstantin" <konstantin.ananyev@intel.com>
> > To: Jerin Jacob <jerin.jacob@caviumnetworks.com>, "Lu, Wenzhuo"
> >  <wenzhuo.lu@intel.com>, "Wu, Jingjing" <jingjing.wu@intel.com>,
> >  "Iremonger, Bernard" <bernard.iremonger@intel.com>, "Mcnamara, John"
> >  <john.mcnamara@intel.com>, "Kovacevic, Marko" <marko.kovacevic@intel.c=
om>,
> >  Thomas Monjalon <thomas@monjalon.net>, "Yigit, Ferruh"
> >  <ferruh.yigit@intel.com>, Andrew Rybchenko <arybchenko@solarflare.com>=
,
> >  Olivier Matz <olivier.matz@6wind.com>
> > CC: "dev@dpdk.org" <dev@dpdk.org>, "shahafs@mellanox.com"
> >  <shahafs@mellanox.com>
> > Subject: RE: [dpdk-dev] [PATCH v2 1/4] ethdev: add Rx offload outer UDP
> >  checksum	definition
> >
> >
> > Hi Jerin,
>=20
> Hi Konstantin,
>=20
> >
> > >
> > > Introduced DEV_RX_OFFLOAD_OUTER_UDP_CKSUM Rx offload flag and
> > > PKT_RX_EL4_CKSUM_BAD mbuf ol_flags to detect outer UDP checksum
> > > failure.
> > >
> > > - To use hardware Rx outer UDP checksum offload, the user needs to
> > > configure DEV_RX_OFFLOAD_OUTER_UDP_CKSUM offload flags in slowpath.
> > >
> > > - Driver updates the PKT_RX_EL4_CKSUM_BAD mbuf ol_flag on checksum fa=
ilure
> > > similar to the outer L3 PKT_RX_EIP_CKSUM_BAD flag.
> > >
> > > Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
> >
> > Looks ok to me in general.
> > Just wonder is there any PMD that supports all these new features?
>=20
> octeontx2 PMD has this feature. I am planning to push the PMD for v19.02.
> Before that I adding all the common code change to avoid the dependency.

Ok, but why then ethdev/mbuf changes has to go into 18.11?
Do you plan your new PMD backward compatible with 18.11 LTS?
Konstantin