XDP hardware hints discussion mail archive
 help / color / mirror / Atom feed
From: "Song, Yoong Siang" <yoong.siang.song@intel.com>
To: Stanislav Fomichev <sdf@google.com>,
	Jesper Dangaard Brouer <hawk@kernel.org>
Cc: "t, Thomas" <arthomas@redhat.com>,
	"Abdul Rahim, Faizal" <faizal.abdul.rahim@intel.com>,
	"Dupont, Fabien" <fdupont@redhat.com>,
	"Chavez, Robert" <robert.chavez@intel.com>,
	"Zaremba, Larysa" <larysa.zaremba@intel.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <borkmann@iogearbox.net>,
	"Gament, Costin" <cgament@redhat.com>,
	Jakub Kicinski <kuba@kernel.org>,
	Daniel Bristot de Oliveira <bristot@redhat.com>,
	"Karlsson, Magnus" <magnus.karlsson@intel.com>,
	"Fijalkowski, Maciej" <maciej.fijalkowski@intel.com>,
	Felix Maurer <fmaurer@redhat.com>,
	"Desouza, Ederson" <ederson.desouza@intel.com>,
	"Maloor, Kishen" <kishen.maloor@intel.com>,
	"xdp-hints@xdp-project.net" <xdp-hints@xdp-project.net>
Subject: [xdp-hints] Re: Interest in TX-side XDP metadata hints from Intel (+ Red Hat)
Date: Thu, 14 Sep 2023 01:22:16 +0000	[thread overview]
Message-ID: <PH0PR11MB5830C5833A2234C0070E3121D8F7A@PH0PR11MB5830.namprd11.prod.outlook.com> (raw)
In-Reply-To: <CAKH8qBuaHxByfCQMZtkS07SJZRiBNQa9Kso3Kr4QRsKEa6N9=A@mail.gmail.com>

On Saturday, September 9, 2023 12:38 AM Stanislav Fomichev <sdf@google.com> wrote:
>On Fri, Sep 8, 2023 at 7:18 AM Jesper Dangaard Brouer <hawk@kernel.org>
>wrote:
>>
>> Hi Stanislav,
>>
>> Sharing that Intel (+Red Hat) have an interest in getting XDP metadata
>> hints working on smaller devices used for "Edge Controls for Industrial"
>> (ECI)[1].
>>
>> What are your plans for your patchset[2] ?
>
>Sorry, I was OOO for two weeks and then got distracted by some internal work :-
>( I'll probably post another respin next week. I think I've addressed most of the
>Maciej's feedback, but the only thing that we need to move this forward is to
>support another device besides mlx5. Maciej was suggesting ice, but I don't have
>the hw :-( I have some idfp-capable devices, so I'll probably try to play with it
>instead (but the idpf driver is still not pulled).
>
>So if you want to help speed it up, we should probably focus first on getting some
>of the intel nics support tx metadata.
>To proceed, maybe I should post my next iteration and we can collaborate on the
>ice driver changes?
>Who should I CC explicitly?
>
Hi Stanislav,

I can help to speed it up. I don't have ice HW on my hand as well, so maybe we can start 
with igc drivers, followed by stmmac drivers.

Please post your next iteration, then we can collaborate based on that.

Thanks & Regards
Siang

>> My suggestion (to Intel) is that we implement the TX-timestamp (plus
>> LaunchTime) on top of Stanslav's patches[2].  For drivers
>> igc+igb+stmmac which I think will cover the tests[3] need by
>> Arun/Costin (?). And then post it upstream for review.
>>
>> The Intel test tool[3] isn't open, but it is an AF_XDP based Real-Time
>> Compute Performance (RTCP) application that show-case a real-time
>> control loop application.  The current code uses out-of-tree[4] "TXTIME"
>> LaunchTime feature, that want not upstreamed.
>>
>> Lets us instead implement a proper TX LaunchTime feature on top of [2].
>>
>> --Jesper
>> cc. XDP-hints ML as anyone is free to code this up, code help here[5]
>>
>>
>> [1] https://eci.intel.com/
>> [2]
>> https://lore.kernel.org/all/20230809165418.2831456-1-sdf@google.com/
>> [3] https://github.com/OTCShare2/rtcp-xdp
>> [4] https://lore.kernel.org/all/20210621230635.3a83851c@carbon/
>> [5]
>> https://github.com/xdp-project/xdp-project/blob/master/areas/tsn/code0
>> 1_follow_qdisc_TSN_offload.org#tx-time-to-hardware-driver-igc

  reply	other threads:[~2023-09-14  1:22 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-08 14:18 [xdp-hints] " Jesper Dangaard Brouer
2023-09-08 16:37 ` [xdp-hints] " Stanislav Fomichev
2023-09-14  1:22   ` Song, Yoong Siang [this message]
2023-09-14 21:05     ` Stanislav Fomichev
2023-09-21  2:10       ` Song, Yoong Siang
2023-09-21  4:35         ` Stanislav Fomichev
2023-09-21  8:17           ` Song, Yoong Siang
2023-09-21 16:24             ` Stanislav Fomichev
2023-09-22  0:16               ` Song, Yoong Siang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://lists.xdp-project.net/postorius/lists/xdp-hints.xdp-project.net/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=PH0PR11MB5830C5833A2234C0070E3121D8F7A@PH0PR11MB5830.namprd11.prod.outlook.com \
    --to=yoong.siang.song@intel.com \
    --cc=arthomas@redhat.com \
    --cc=ast@kernel.org \
    --cc=borkmann@iogearbox.net \
    --cc=bristot@redhat.com \
    --cc=cgament@redhat.com \
    --cc=ederson.desouza@intel.com \
    --cc=faizal.abdul.rahim@intel.com \
    --cc=fdupont@redhat.com \
    --cc=fmaurer@redhat.com \
    --cc=hawk@kernel.org \
    --cc=kishen.maloor@intel.com \
    --cc=kuba@kernel.org \
    --cc=larysa.zaremba@intel.com \
    --cc=maciej.fijalkowski@intel.com \
    --cc=magnus.karlsson@intel.com \
    --cc=robert.chavez@intel.com \
    --cc=sdf@google.com \
    --cc=xdp-hints@xdp-project.net \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox