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Message-ID: <MW4PR11MB577639450F79C109465BC48CFD759@MW4PR11MB5776.namprd11.prod.outlook.com>
Date: Fri, 26 Aug 2022 11:52:06 +0000
From: "Drewek, Wojciech" <wojciech.drewek@...el.com>
To: Jiri Pirko <jiri@...nulli.us>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
"Lobakin, Alexandr" <alexandr.lobakin@...el.com>,
"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
"Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
"davem@...emloft.net" <davem@...emloft.net>,
"edumazet@...gle.com" <edumazet@...gle.com>,
"kuba@...nel.org" <kuba@...nel.org>,
"pabeni@...hat.com" <pabeni@...hat.com>,
"jhs@...atatu.com" <jhs@...atatu.com>,
"xiyou.wangcong@...il.com" <xiyou.wangcong@...il.com>,
"marcin.szycik@...ux.intel.com" <marcin.szycik@...ux.intel.com>,
"michal.swiatkowski@...ux.intel.com"
<michal.swiatkowski@...ux.intel.com>,
"kurt@...utronix.de" <kurt@...utronix.de>,
"boris.sukholitko@...adcom.com" <boris.sukholitko@...adcom.com>,
"vladbu@...dia.com" <vladbu@...dia.com>,
"komachi.yoshiki@...il.com" <komachi.yoshiki@...il.com>,
"paulb@...dia.com" <paulb@...dia.com>,
"baowen.zheng@...igine.com" <baowen.zheng@...igine.com>,
"louis.peens@...igine.com" <louis.peens@...igine.com>,
"simon.horman@...igine.com" <simon.horman@...igine.com>,
"pablo@...filter.org" <pablo@...filter.org>,
"maksym.glubokiy@...ision.eu" <maksym.glubokiy@...ision.eu>,
"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
"jchapman@...alix.com" <jchapman@...alix.com>,
"gnault@...hat.com" <gnault@...hat.com>
Subject: RE: [RFC PATCH net-next 0/5] ice: L2TPv3 offload support
> -----Original Message-----
> From: Drewek, Wojciech
> Sent: piątek, 26 sierpnia 2022 13:37
> To: Jiri Pirko <jiri@...nulli.us>
> Cc: netdev@...r.kernel.org; Lobakin, Alexandr <alexandr.lobakin@...el.com>; Brandeburg, Jesse <jesse.brandeburg@...el.com>;
> Nguyen, Anthony L <anthony.l.nguyen@...el.com>; davem@...emloft.net; edumazet@...gle.com; kuba@...nel.org;
> pabeni@...hat.com; jhs@...atatu.com; xiyou.wangcong@...il.com; marcin.szycik@...ux.intel.com;
> michal.swiatkowski@...ux.intel.com; kurt@...utronix.de; boris.sukholitko@...adcom.com; vladbu@...dia.com;
> komachi.yoshiki@...il.com; paulb@...dia.com; baowen.zheng@...igine.com; louis.peens@...igine.com;
> simon.horman@...igine.com; pablo@...filter.org; maksym.glubokiy@...ision.eu; intel-wired-lan@...ts.osuosl.org;
> jchapman@...alix.com; gnault@...hat.com
> Subject: RE: [RFC PATCH net-next 0/5] ice: L2TPv3 offload support
>
>
>
> > -----Original Message-----
> > From: Jiri Pirko <jiri@...nulli.us>
> > Sent: piątek, 26 sierpnia 2022 13:16
> > To: Drewek, Wojciech <wojciech.drewek@...el.com>
> > Cc: netdev@...r.kernel.org; Lobakin, Alexandr <alexandr.lobakin@...el.com>; Brandeburg, Jesse <jesse.brandeburg@...el.com>;
> > Nguyen, Anthony L <anthony.l.nguyen@...el.com>; davem@...emloft.net; edumazet@...gle.com; kuba@...nel.org;
> > pabeni@...hat.com; jhs@...atatu.com; xiyou.wangcong@...il.com; marcin.szycik@...ux.intel.com;
> > michal.swiatkowski@...ux.intel.com; kurt@...utronix.de; boris.sukholitko@...adcom.com; vladbu@...dia.com;
> > komachi.yoshiki@...il.com; paulb@...dia.com; baowen.zheng@...igine.com; louis.peens@...igine.com;
> > simon.horman@...igine.com; pablo@...filter.org; maksym.glubokiy@...ision.eu; intel-wired-lan@...ts.osuosl.org;
> > jchapman@...alix.com; gnault@...hat.com
> > Subject: Re: [RFC PATCH net-next 0/5] ice: L2TPv3 offload support
> >
> > Fri, Aug 26, 2022 at 01:00:54PM CEST, wojciech.drewek@...el.com wrote:
> > >Add support for dissecting L2TPv3 session id in flow dissector. Add support
> > >for this field in tc-flower and support offloading L2TPv3. Finally, add
> > >support for hardware offload of L2TPv3 packets based on session id in
> > >switchdev mode in ice driver.
> > >
> > >Example filter:
> > > # tc filter add dev $PF1 ingress prio 1 protocol ip \
> > > flower \
> > > ip_proto l2tp \
> > > l2tpv3_sid 1234 \
> > > skip_sw \
> > > action mirred egress redirect dev $VF1_PR
> > >
> > >Changes in iproute2 are required to use the new fields.
> > >
> > >ICE COMMS DDP package is required to create a filter in ice.
> >
> > I don't understand what do you mean by this. Could you please explain
> > what this mysterious "ICE COMMS DDP package" is? Do I understand it
> > correctly that without it, the solution would not work?
>
> Sorry, I'll include more precise description in the next version.
> DDP (Dynamic Device Personalization) is a firmware package that contains definitions
> protocol's headers and packets. It allows you to add support for the new protocol to the
> NIC card without rebooting. If the DDP package does not support L2TPv3 then hw offload
> will not work, however sw offload will still work.
>
> More info on DDP:
> https://www.intel.com/content/www/us/en/architecture-and-technology/ethernet/dynamic-device-personalization-brief.html
To be more precise we need COMMS DDP package that supports more protocols (L2TPv3 included):
https://www.intel.com/content/www/us/en/download/19660/intel-ethernet-800-series-telecommunication-comms-dynamic-device-personalization-ddp-package.html
>
> >
> > >
> > >Marcin Szycik (1):
> > > ice: Add L2TPv3 hardware offload support
> > >
> > >Wojciech Drewek (4):
> > > uapi: move IPPROTO_L2TP to in.h
> > > flow_dissector: Add L2TPv3 dissectors
> > > net/sched: flower: Add L2TPv3 filter
> > > flow_offload: Introduce flow_match_l2tpv3
> > >
> > > .../ethernet/intel/ice/ice_protocol_type.h | 8 +++
> > > drivers/net/ethernet/intel/ice/ice_switch.c | 70 ++++++++++++++++++-
> > > drivers/net/ethernet/intel/ice/ice_tc_lib.c | 27 ++++++-
> > > drivers/net/ethernet/intel/ice/ice_tc_lib.h | 6 ++
> > > include/net/flow_dissector.h | 9 +++
> > > include/net/flow_offload.h | 6 ++
> > > include/uapi/linux/in.h | 2 +
> > > include/uapi/linux/l2tp.h | 2 -
> > > include/uapi/linux/pkt_cls.h | 2 +
> > > net/core/flow_dissector.c | 28 ++++++++
> > > net/core/flow_offload.c | 7 ++
> > > net/sched/cls_flower.c | 16 +++++
> > > 12 files changed, 179 insertions(+), 4 deletions(-)
> > >
> > >--
> > >2.31.1
> > >
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