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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6209C7619A for ; Mon, 27 Mar 2023 09:05:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232537AbjC0JFO (ORCPT ); Mon, 27 Mar 2023 05:05:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232660AbjC0JEj (ORCPT ); Mon, 27 Mar 2023 05:04:39 -0400 Received: from mail-wr1-x42f.google.com (mail-wr1-x42f.google.com [IPv6:2a00:1450:4864:20::42f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B5FFD90; Mon, 27 Mar 2023 02:04:05 -0700 (PDT) Received: by mail-wr1-x42f.google.com with SMTP id v1so7894938wrv.1; Mon, 27 Mar 2023 02:04:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; t=1679907844; h=content-transfer-encoding:in-reply-to:organization:references:cc:to :content-language:subject:reply-to:user-agent:mime-version:date :message-id:from:from:to:cc:subject:date:message-id:reply-to; bh=PXHUgllCiE+YVplh4F0vC+TIMQgHYLAcdKhqqMncm+M=; b=UjgOhIU/pavH2tlMiWKycQqAigQYIjgXPIu4oocRPGzCa6LiVMGOvqObrg/PRgkmVu 9Xnhg4WGVJjU3lOJoCVQ3UYykePZC+rJIGQhsMn5smPo/OHUQWgnk0LqVyle5s5lsPX9 ToiZQ+OZguuNokmfrIAl2lS9WK4Q4SvyYi+2GIqflDRN3t4HaR+m2AfzLnCmhcdjb9vl p5o8JEG89pLh5h9zUx7yYvO8WMqBtMnjVx7B6Bhhv0/XcI8FcsMimYzxslgt9LrfgO6H KJEquB69ob74KiHksS94yNZveY1kMYPS4TsXHra/0UD5uSQkXuOjOOe2Vh/wn+YamevJ t5jQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679907844; h=content-transfer-encoding:in-reply-to:organization:references:cc:to :content-language:subject:reply-to:user-agent:mime-version:date :message-id:from:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=PXHUgllCiE+YVplh4F0vC+TIMQgHYLAcdKhqqMncm+M=; b=PsZq4NB9F1NcAtwodSoEAUIEO1XKL5Seg8oPIkCU3J6AYjyUz01lXHmOgUBXbtB99K GHCcU2XxMxl8e28FYrIp/K1jxcw15hcVx+EjyupCDGgQfPcWDK5VW/XQZ/g4D2mi4mnr fxnsK0CXE7MomOkLtGP6srbWFOFRxMBcpMKh1CRAluxQ1XPWCDF6MSENU+Uy0UlPODnc vyCISz2Pi7eWAncdYmuj0JiqJDTMflLpTOEgawOZMJlcoYf6eLbL5cBMIFlJAQ+Pam9V f5P1AnXTid1voqmhYPeT+GGeOhWfAPup70Bf2Nfs8Bcr0TtJZ9hB4Ddjfuy1DxdyPDvE Ay+g== X-Gm-Message-State: AAQBX9da2c+j4h4NTyOK5jpZyWQ/fCDsR/7OJf3pgwkNPpGFIPTdMtse hBMGtrBJmLX60ZA/MVIicDDNh8wmCo+otQ== X-Google-Smtp-Source: AKy350ZCDxEOhvB06k/8nFr/OHWO5YAaSfzuL2Y8qzIAkmCg7c3/PINVfRoQvVapYrT+OqZlGSCrbw== X-Received: by 2002:a5d:63cb:0:b0:2d5:2436:b584 with SMTP id c11-20020a5d63cb000000b002d52436b584mr8944362wrw.42.1679907844064; Mon, 27 Mar 2023 02:04:04 -0700 (PDT) Received: from [192.168.26.216] (54-240-197-238.amazon.com. [54.240.197.238]) by smtp.gmail.com with ESMTPSA id u13-20020adfdb8d000000b002d2b117a6a6sm24567852wri.41.2023.03.27.02.04.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 27 Mar 2023 02:04:03 -0700 (PDT) From: Paul Durrant X-Google-Original-From: Paul Durrant Message-ID: <04f7b88c-a7dd-6d63-4938-06e71a194aa3@xen.org> Date: Mon, 27 Mar 2023 10:04:02 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0 Reply-To: paul@xen.org Subject: Re: [PATCH 1/2] xen/netback: don't do grant copy across page boundary Content-Language: en-US To: Juergen Gross , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: Wei Liu , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , xen-devel@lists.xenproject.org, stable@vger.kernel.org References: <20230327083646.18690-1-jgross@suse.com> <20230327083646.18690-2-jgross@suse.com> Organization: Xen Project In-Reply-To: <20230327083646.18690-2-jgross@suse.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 27/03/2023 09:36, Juergen Gross wrote: > Fix xenvif_get_requests() not to do grant copy operations across local > page boundaries. This requires to double the maximum number of copy > operations per queue, as each copy could now be split into 2. > > Make sure that struct xenvif_tx_cb doesn't grow too large. > > Cc: stable@vger.kernel.org > Fixes: ad7f402ae4f4 ("xen/netback: Ensure protocol headers don't fall in the non-linear area") > Signed-off-by: Juergen Gross > --- > drivers/net/xen-netback/common.h | 2 +- > drivers/net/xen-netback/netback.c | 25 +++++++++++++++++++++++-- > 2 files changed, 24 insertions(+), 3 deletions(-) > Reviewed-by: Paul Durrant