From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0ED13C433ED for ; Tue, 13 Apr 2021 19:41:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA4E8613C8 for ; Tue, 13 Apr 2021 19:41:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237381AbhDMTmL (ORCPT ); Tue, 13 Apr 2021 15:42:11 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:38891 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231747AbhDMTmL (ORCPT ); Tue, 13 Apr 2021 15:42:11 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1618342910; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=l3Xd6e7Tcsaita/bxhL5mEvFZaDd27wDdsSc3xDLpDY=; b=Aa6gDRSKhUshAR6qSEXtbpEG4TdGFHzZvJJy4NrdZlSfn/z63bz8ODUl4hz1l2tnCoigzl DcjU1NRDrpEQvs7J5aQdymiL48vMikWOWHw2/QoeUQFTCA9Iw92Mco2Fh6bMYAEnj1WzE9 6zHMeG/oPZjOcrKyahpUTn++Z7Je3Ds= Received: from mail-ed1-f71.google.com (mail-ed1-f71.google.com [209.85.208.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-364-swGJErCpNe6kdlOVJ9i3Ng-1; Tue, 13 Apr 2021 15:41:49 -0400 X-MC-Unique: swGJErCpNe6kdlOVJ9i3Ng-1 Received: by mail-ed1-f71.google.com with SMTP id w15-20020a056402268fb02903828f878ec5so1825457edd.5 for ; Tue, 13 Apr 2021 12:41:49 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version:content-transfer-encoding; bh=l3Xd6e7Tcsaita/bxhL5mEvFZaDd27wDdsSc3xDLpDY=; b=O2d5onzlt5UYuL8pYMTYuhBlZCqTNJzwXJQRUZZgii4y4MWJkbb6/NnzArbPdcM7Fq w9eHdn6IEXN0q8TuSpTtGzCnvZSR5rbt5fuFCm+Fy7TIv7GZhSNu4E/rG10Oia0ufWzJ R8QrVEtsHaSxVleowRV799k+z4qQZtLA78orr8PepOoPbqGGwtXBYP2CJpvk8ejbl16H THTTWzqnpnK361Bc4kcf1Vm+OxPVNTbxytT2X1Tq6a+dWHxJe3SHo6ouLpdAUsYc1YcP /Q0TG4LkR5jR9rMtRWUwyXgbxx3K2NWvGCbJIQEywKWbUgP4O/qprL/Z0x5+CiPYuWR6 fqqA== X-Gm-Message-State: AOAM533zHd2MukY0INePjZ5CRguEUxU9zdSJjZxtxsS514o1hL22FyZY zt+ou70EkZW+Tdr3uRCrt57FTz/k/nFDyvgx9RudDCHJkVTM8a/f1nmMpxBHMOSUnSnm+CaLSJT Ij5c1j04QvPTj X-Received: by 2002:a50:ee17:: with SMTP id g23mr23348811eds.45.1618342907855; Tue, 13 Apr 2021 12:41:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyvpdeF9svdWjMVbV2DfqtSl2u4QrSYZVmGOD039HoFJzj67/OERJjVYP3+RQd1Uuii9f5eAg== X-Received: by 2002:a50:ee17:: with SMTP id g23mr23348779eds.45.1618342907425; Tue, 13 Apr 2021 12:41:47 -0700 (PDT) Received: from alrua-x1.borgediget.toke.dk ([2a0c:4d80:42:443::2]) by smtp.gmail.com with ESMTPSA id s11sm10026689edt.27.2021.04.13.12.41.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 13 Apr 2021 12:41:47 -0700 (PDT) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 443771804E8; Tue, 13 Apr 2021 21:41:46 +0200 (CEST) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: Lorenzo Bianconi , bpf@vger.kernel.org Cc: netdev@vger.kernel.org, lorenzo.bianconi@redhat.com, davem@davemloft.net, kuba@kernel.org, ast@kernel.org, daniel@iogearbox.net, brouer@redhat.com, song@kernel.org Subject: Re: [PATCH v2 bpf-next] cpumap: bulk skb using netif_receive_skb_list In-Reply-To: References: X-Clacks-Overhead: GNU Terry Pratchett Date: Tue, 13 Apr 2021 21:41:46 +0200 Message-ID: <87lf9mm0p1.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Lorenzo Bianconi writes: > Rely on netif_receive_skb_list routine to send skbs converted from > xdp_frames in cpu_map_kthread_run in order to improve i-cache usage. > The proposed patch has been tested running xdp_redirect_cpu bpf sample > available in the kernel tree that is used to redirect UDP frames from > ixgbe driver to a cpumap entry and then to the networking stack. > UDP frames are generated using pkt_gen. > > $xdp_redirect_cpu --cpu --progname xdp_cpu_map0 --dev > > bpf-next: ~2.2Mpps > bpf-next + cpumap skb-list: ~3.15Mpps Nice! :) Acked-by: Toke H=C3=B8iland-J=C3=B8rgensen