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=-3.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 0605DC4360C for ; Sun, 6 Oct 2019 18:45:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D362820835 for ; Sun, 6 Oct 2019 18:45:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="MONqvAWV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726227AbfJFSpW (ORCPT ); Sun, 6 Oct 2019 14:45:22 -0400 Received: from mail-qt1-f195.google.com ([209.85.160.195]:39025 "EHLO mail-qt1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725905AbfJFSpW (ORCPT ); Sun, 6 Oct 2019 14:45:22 -0400 Received: by mail-qt1-f195.google.com with SMTP id n7so16132183qtb.6; Sun, 06 Oct 2019 11:45:21 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=FDtNMGd4vIkTEBG4VnbaIfDNYKUEZ4dNcxWAbUNY7uo=; b=MONqvAWV2NArFHCXriHQxTaQbsAXGUnRmgCUu0KX2YD7MqciBZlmnJpiG7T3dpIScw Mn6BbVydeTbNOp/4ICc1FILS5izg1W0wvsNf3f9QaRECvWj/fDOjTK6XhWWKutlZp8fv w84reqYic+PpIpn6EC7Y2/DufCRjpztwJYeXsy3baD78Jjs+3DfZu7CbAxeTlbG9SuZf hz/v2WFpSBkLGavhfZofgYx3ogLuymC43+RKur87RkrIs7QsxFlgSTdCEeRm2FVjkNOp Jn9AQDtAA/5QiE8cLZ1cVAlwuu01nU2cmG02pEPNkbxHPAt/sUvbZhDZ0wISfzHNMojq Xt1Q== 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:date:message-id:mime-version :content-transfer-encoding; bh=FDtNMGd4vIkTEBG4VnbaIfDNYKUEZ4dNcxWAbUNY7uo=; b=fu9nHp2cwObLMpbdWjLpuu6geSEIW4SALWx4DwTF/X8PnsV4MbGUO46ax/AgtzOe0r JB2oNXB1WMQULsF8GLbkuWik2cEinsD0/CNSNJJV9ffFFxXi8UJV3X88TWIJ2eYBo72U CBNhiuI3g5qRa1ZGBBRTcsBGEHQn5cddMxqZgbdfOXZZvfGpuDgoY6cOGGr8vqvPwF3g w+rDLAlFrzKuK3L3UjObETnWlwbNrQuzVWNSprtqhyceL710c/ztvbN0dtNp4MrWYUr0 CTgvRtGFbmRsYXijddtwhW0vpZlXtoxGuVhKwvVXxWIUIsEOxqMgEpDLHT7U2deN4a6y j0CA== X-Gm-Message-State: APjAAAWuivZKwh+5PWNMpG9/skgYkp4vRjOeCV2GDJ5f+2lQzGCo01Po e1VGa0xtWZsgkOX0vVVWYRQm1FM/ X-Google-Smtp-Source: APXvYqzTgC0tNHX/1kg7nS97bMQhXuCqAxgVHWRofRl0lCE9xwQis8uTGV52SavGw0YEnwQZvl4PPQ== X-Received: by 2002:ac8:5243:: with SMTP id y3mr26218021qtn.51.1570387520605; Sun, 06 Oct 2019 11:45:20 -0700 (PDT) Received: from localhost.localdomain ([2804:431:c7cb:21c2:d505:73c7:4df5:8eac]) by smtp.gmail.com with ESMTPSA id l23sm11275578qta.53.2019.10.06.11.45.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 06 Oct 2019 11:45:19 -0700 (PDT) From: jcfaracco@gmail.com To: netdev@vger.kernel.org Cc: mst@redhat.com, jasowang@redhat.com, davem@davemloft.net, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, dnmendes76@gmail.com Subject: [PATCH RFC net-next 0/2] drivers: net: virtio_net: Implement Date: Sun, 6 Oct 2019 15:45:13 -0300 Message-Id: <20191006184515.23048-1-jcfaracco@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Julio Faracco Driver virtio_net is not handling error events for TX provided by dev_watchdog. This event is reached when transmission queue is having problems to transmit packets. To enable it, driver should have .ndo_tx_timeout implemented. This serie has two commits: In the past, we implemented a function to recover driver state when this kind of event happens, but the structure was to complex for virtio_net that moment. Alternativelly, this skeleton should be enough for now. For further details, see thread: https://lkml.org/lkml/2015/6/23/691 Patch 1/2: Add statistic field for TX timeout events. Patch 2/2: Implement a skeleton function to debug TX timeout events. Julio Faracco (2): drivers: net: virtio_net: Add tx_timeout stats field drivers: net: virtio_net: Add tx_timeout function drivers/net/virtio_net.c | 33 ++++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) -- 2.21.0