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=-8.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_IN_DEF_DKIM_WL autolearn=no 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 798BCC76190 for ; Tue, 23 Jul 2019 06:30:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 457D42239F for ; Tue, 23 Jul 2019 06:30:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="pKypYORE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730554AbfGWGa6 (ORCPT ); Tue, 23 Jul 2019 02:30:58 -0400 Received: from mail-yb1-f170.google.com ([209.85.219.170]:44731 "EHLO mail-yb1-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729892AbfGWGa6 (ORCPT ); Tue, 23 Jul 2019 02:30:58 -0400 Received: by mail-yb1-f170.google.com with SMTP id a14so15794148ybm.11 for ; Mon, 22 Jul 2019 23:30:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=yDAh35R/1EFfcE063Gumv97CFVxysUw6D4aMrC2pGTo=; b=pKypYOREmjsYFPbfPwAEdwGs++ErdgjvHv730JmLx1bx0BwOfvkoktkuCdtKsq0JPj p+Sizs6C4gGqa/1okBmPC/5Lby0MY7d/p5aNyJpwi3sRESww1RShSIq+GbM3prNGRtiz tsJEMJrePO5pUKjTaxiezJGLGUBAPzCi31gaL8zhp8v3mbS9CjMDfjXuupGSB4sm8zmk tBw7gtogPFDvL1mxrcptVqRC2EljG5W4O1nRo9hFajjLfhuxrXUYILdylr5srOfv69Mg hzYvoQHJxPc5D8bZhR+U0ILUinv/SohJfBROAVf5TPak2JzpGUylzn0Nph8w9nuYQoYu X13A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=yDAh35R/1EFfcE063Gumv97CFVxysUw6D4aMrC2pGTo=; b=ZNQyAEE861YU8T9KwhYZPVkFsRx1vtbVZra89qvih4Fo74kh6eeGH06yKyt5sRHKvO eVfVMPRPPXN095b6UBwuQmyuupgZ8vhV0xvyzjOYxFc2qgMctVQdLM515+3sp/DePzlr DanepEOf5bx7/f2yLaI5ja07FGnwEwa2m4I9GhEIQjKMWKTy/9p0pvT/vL/ThykalHYs jD2A0wiz065uodiF4zrv3YiSo+vDwAvd6kkWwQt1WZsNXLlOQScnVO/edMb6cwH8Pz0v xd2XBIwK1YafJvyOtLp1qZHFhjtQwe0549R84al0F1AQsmLuDvgje+SexgyIffCnh/2e zYIw== X-Gm-Message-State: APjAAAVMF7jvHcketIPibYcKcFrPzBLtKXjPmOp5udy6y6v/3UNu/dLU M0I9288itxfb27dY1BoZdZqpyljyrszRRC+NVc/syw== X-Google-Smtp-Source: APXvYqyV5x17BGj0fV3pIvig/mLJEt7D58ahKIsWD8nZUHYf5Vj/TD43DYV4oiD4rwDPhH/r+kQK84vvkZWnIiR+tsw= X-Received: by 2002:a25:37d7:: with SMTP id e206mr25861813yba.518.1563863456770; Mon, 22 Jul 2019 23:30:56 -0700 (PDT) MIME-Version: 1.0 References: <20190723002042.105927-1-ppenkov.kernel@gmail.com> In-Reply-To: <20190723002042.105927-1-ppenkov.kernel@gmail.com> From: Eric Dumazet Date: Tue, 23 Jul 2019 08:30:45 +0200 Message-ID: Subject: Re: [bpf-next 0/6] Introduce a BPF helper to generate SYN cookies To: Petar Penkov Cc: netdev , bpf , David Miller , Alexei Starovoitov , Daniel Borkmann , lmb@cloudflare.com, Stanislav Fomichev , Petar Penkov Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, Jul 23, 2019 at 2:20 AM Petar Penkov wrote: > > From: Petar Penkov > > This patch series introduces a BPF helper function that allows generating SYN > cookies from BPF. Currently, this helper is enabled at both the TC hook and the > XDP hook. Please provide performance numbers ? We want to know if we increase performance under synflood, or if it does not change, or even decrease ;) Thanks.