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=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 4F2BAC56201 for ; Wed, 11 Nov 2020 08:40:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC16420756 for ; Wed, 11 Nov 2020 08:40:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CZlYOvDw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726038AbgKKIkR (ORCPT ); Wed, 11 Nov 2020 03:40:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725929AbgKKIkQ (ORCPT ); Wed, 11 Nov 2020 03:40:16 -0500 Received: from mail-oi1-x242.google.com (mail-oi1-x242.google.com [IPv6:2607:f8b0:4864:20::242]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D830EC0613D1; Wed, 11 Nov 2020 00:40:14 -0800 (PST) Received: by mail-oi1-x242.google.com with SMTP id q206so1307546oif.13; Wed, 11 Nov 2020 00:40:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:message-id:in-reply-to:references:subject :mime-version:content-transfer-encoding; bh=44+l5aH+9tVUZ2uSZHD5ETua+qWC6tG/was2zpKBcAY=; b=CZlYOvDwdBXLugtOnEGkc0r2Mw2vFrAkImfrL4Ftc+F1q83YQTUDMH+hIPrdRP7CUX ozpwUxv9zojM3yIfQBN15Uc0nK6cvkOu8Alb5uzDlIsexTtzyra3OqPOsGZvPuLzP3E/ ix7AmpctBTQ74/YPCzoqaeN28JRYcdpqHhUGtSXaH+puCBvSAJAr+GowyThQWrgfWUc1 7ovr1CyEvFGyHKs+zFwkriR8bGIStvkg1oREyrEcE6QIA5+JWmtK2oD4noA2xEqKovtL d56QDA/3XMxVHtyR7Slx0+/rUwz9B8oYD1LhFgWQ/G1U2AN40s2hr9tjP0l6s7WetSwx w1SA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:message-id:in-reply-to :references:subject:mime-version:content-transfer-encoding; bh=44+l5aH+9tVUZ2uSZHD5ETua+qWC6tG/was2zpKBcAY=; b=ONt9RAuJ7n8e3gv1y49y2752HjfKPd5x5bHuCqOd1RmsVxIdmXkUAtM+zwOyM9QmHG TDaFMH3adLeRdtKxnWqiR/GptNfmeCn8CuCiyv3UW0B2XGGD7qh0zNLHFJmVAW6nPP4U +82QRpT6imknrxt8SbPMneU1A+nEto7I9RH5Iv+L3sOWIqYyOAfHAxmnYrsOf0PMTER2 85D6MSQeEO0RqJkMwaoAuoQ72Z6D4wz9CpJV3c8D2xuj7SgM5Zeq4PQ552Fyq54oSaz8 cNSDfSH2/ComKnkrY5QdoQwqNiI8yfOpFcHlu28Ioz67Elv2TM6/pWyFrAQ4o3NtESlA gbdA== X-Gm-Message-State: AOAM5320oC0/FJ361wX7IjvK+eVIUnfaAoDcqTfR/WG1ldepqLRceMjf G540PGs8KPGDnad5Qp5Uwns= X-Google-Smtp-Source: ABdhPJxQmRJobqIm7fJPGQtqA72GX/qgCiD0urPbX7FCQozly0HJeS+eH9G0IclPEqi49ZJfzKZPaQ== X-Received: by 2002:aca:eb06:: with SMTP id j6mr1417623oih.144.1605084014346; Wed, 11 Nov 2020 00:40:14 -0800 (PST) Received: from localhost ([184.63.162.180]) by smtp.gmail.com with ESMTPSA id h8sm380926otm.72.2020.11.11.00.40.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Nov 2020 00:40:13 -0800 (PST) Date: Wed, 11 Nov 2020 00:40:06 -0800 From: John Fastabend To: Magnus Karlsson , magnus.karlsson@intel.com, bjorn.topel@intel.com, ast@kernel.org, daniel@iogearbox.net, netdev@vger.kernel.org, jonathan.lemon@gmail.com, kuba@kernel.org, john.fastabend@gmail.com Cc: bpf@vger.kernel.org, jeffrey.t.kirsher@intel.com, anthony.l.nguyen@intel.com, maciej.fijalkowski@intel.com, maciejromanfijalkowski@gmail.com, intel-wired-lan@lists.osuosl.org Message-ID: <5faba36671508_bb26020850@john-XPS-13-9370.notmuch> In-Reply-To: <1605006094-31097-5-git-send-email-magnus.karlsson@gmail.com> References: <1605006094-31097-1-git-send-email-magnus.karlsson@gmail.com> <1605006094-31097-5-git-send-email-magnus.karlsson@gmail.com> Subject: RE: [PATCH bpf-next v2 4/5] xsk: introduce batched Tx descriptor interfaces Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Magnus Karlsson wrote: > From: Magnus Karlsson > > Introduce batched descriptor interfaces in the xsk core code for the > Tx path to be used in the driver to write a code path with higher > performance. This interface will be used by the i40e driver in the > next patch. Though other drivers would likely benefit from this new > interface too. > > Note that batching is only implemented for the common case when > there is only one socket bound to the same device and queue id. When > this is not the case, we fall back to the old non-batched version of > the function. > > Signed-off-by: Magnus Karlsson > --- Acked-by: John Fastabend