[dpdk-dev] [PATCH 3/4] ethdev: add Rx offload outer L4 checksum definitions

[Jerin Jacob]

-----Original Message-----
> Date: Thu, 13 Sep 2018 17:24:26 +0000
> From: Shahaf Shuler <shahafs at mellanox.com>
> To: Jerin Jacob <jerin.jacob at caviumnetworks.com>, 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>,
>  Thomas Monjalon <thomas at monjalon.net>, Ferruh Yigit
>  <ferruh.yigit at intel.com>, Andrew Rybchenko <arybchenko at solarflare.com>,
>  Olivier Matz <olivier.matz at 6wind.com>
> CC: "dev at dpdk.org" <dev at dpdk.org>
> Subject: RE: [dpdk-dev] [PATCH 3/4] ethdev: add Rx offload outer L4
>  checksum definitions
> 
> 
> Thursday, September 13, 2018 4:47 PM, Jerin Jacob:
> > Subject: [dpdk-dev] [PATCH 3/4] ethdev: add Rx offload outer L4 checksum
> > definitions
> >
> > Introduced DEV_RX_OFFLOAD_OUTER_UDP_CKSUM,
> > DEV_RX_OFFLOAD_OUTER_TCP_CKSUM and
> > DEV_RX_OFFLOAD_OUTER_SCTP_CKSUM offload flags and
> 
> Out of curiosity, which TCP based tunnels you target with this current patchset?

I am not aware of any _popular_/_non proprietary_  protocols except SSTP for VPN.


> 
> >
> > PKT_RX_EL4_CKSUM_BAD mbuf ol_flags to enable outer Rx L4 checksum
> > offload.
> >
> > # To use hardware Rx outer L4 checksum offload, the user needs to
> > configure DEV_RX_OFFLOAD_OUTER_* offload flags in slowpath.
> >
> > # Driver updates the PKT_RX_EL4_CKSUM_BAD mbuf ol_flag on checksum
> > failure similar to the outer L3 PKT_RX_EIP_CKSUM_BAD flag.
> >
> > Signed-off-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>