From patchwork Fri Apr 23 10:04:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Magnus Karlsson X-Patchwork-Id: 12220051 X-Patchwork-Delegate: kuba@kernel.org 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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 65CE4C433B4 for ; Fri, 23 Apr 2021 10:05:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32C90608FE for ; Fri, 23 Apr 2021 10:05:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242034AbhDWKFv (ORCPT ); Fri, 23 Apr 2021 06:05:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241997AbhDWKFr (ORCPT ); Fri, 23 Apr 2021 06:05:47 -0400 Received: from mail-wr1-x434.google.com (mail-wr1-x434.google.com [IPv6:2a00:1450:4864:20::434]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2AD8C061756 for ; Fri, 23 Apr 2021 03:05:09 -0700 (PDT) Received: by mail-wr1-x434.google.com with SMTP id a4so47788803wrr.2 for ; Fri, 23 Apr 2021 03:05:09 -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:in-reply-to:references :mime-version:content-transfer-encoding; bh=WOEa3H9ikuixMJBnj2BWjU2Lt8l1O0JIiIqWbM9kpD8=; b=pizEhOxllejzw/8cviEnPDfzzWXgysABi96iBqVvHDG1iXJK/pYLRhoNySP4d9eP9q PKW1r2ou2j1/7Ceb/oT7pI763fbyqD7s5xEn85KWeF0IJuRUY12G9/rMJCwl99+qNPeJ zXepmL5egnTXebZVP7TqRZfuMdMDITBqflQCMA/7cCgbPEuj5dEb08M8Hd/jlpVn2QvU 7NSjQ+BwO7QADLzz0kiD+dQHjKDRAGZapHbWzZhFqzZf8BVN8OJ6UxmAFoAKlTQB12y+ 2+8GCPhrqvp7YFme5icmLl9NbvPW7n+qOvn6s+VY4RG8obwz+WHRDG2vfSsHO8z+6K/U FJjw== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=WOEa3H9ikuixMJBnj2BWjU2Lt8l1O0JIiIqWbM9kpD8=; b=Dk3VLgVpVC9fwfKVBOIHVTvtz22UXBuD+96m1NaBAp3IwOAvsUwra5OLd4NcvOEY3H Xg31BOfB1fmlL9U6/gXNMlMIz88BJkI6+dhln6VEXu0F9RLYl412ShU5Gm9uSWyofYSr DL9ZKj+s873t/UGoDpqftVQGkyzsrFl7sP6ALEjXkyZxnpmIPdNybTfKEAGms61cotvB 2Hc1frrpNzR+4Vvyy9gcoO58mdkb9F/I0DY0GZLJNUtT0DLlGaGHtiItDGCqcxOVnqsj +X/jfHMjxrBTsRjG2u2k8MaBYHtXCQJunz0R2jhR3zsHN3DRyEFwiojO6CXBG8DdOUEc jqWA== X-Gm-Message-State: AOAM532xNscTNpWdxtc/7XWB2h2/vYpwll1rUCJpzMEoQiiZeNQR1Wwg KjT/dL5x1SR7uJpQZdwmhNY= X-Google-Smtp-Source: ABdhPJwsnMZlDbqV2YXuKVj/0Ix/n/fmzLvCeqQlH158jIuHWh0Betz0dYC2WcyeJPHt2CvixCpEiA== X-Received: by 2002:a5d:69d0:: with SMTP id s16mr3705364wrw.102.1619172308621; Fri, 23 Apr 2021 03:05:08 -0700 (PDT) Received: from localhost.localdomain ([188.149.128.194]) by smtp.gmail.com with ESMTPSA id t12sm8599481wrs.42.2021.04.23.03.05.07 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 23 Apr 2021 03:05:08 -0700 (PDT) From: Magnus Karlsson To: magnus.karlsson@intel.com, intel-wired-lan@lists.osuosl.org, anthony.l.nguyen@intel.com, maciej.fijalkowski@intel.com Cc: netdev@vger.kernel.org, brouer@redhat.com Subject: [PATCH intel-net 4/5] igb add correct exception tracing for XDP Date: Fri, 23 Apr 2021 12:04:45 +0200 Message-Id: <20210423100446.15412-5-magnus.karlsson@gmail.com> X-Mailer: git-send-email 2.29.0 In-Reply-To: <20210423100446.15412-1-magnus.karlsson@gmail.com> References: <20210423100446.15412-1-magnus.karlsson@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Magnus Karlsson Add missing exception tracing to XDP when a number of different errors can occur. The support was only partial. Several errors where not logged which would confuse the user quite a lot not knowing where and why the packets disappeared. Fixes: 9cbc948b5a20 ("igb: add XDP support") Reported-by: Jesper Dangaard Brouer Signed-off-by: Magnus Karlsson --- drivers/net/ethernet/intel/igb/igb_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index a45cd2b416c8..45fcfc536b38 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -8402,18 +8402,20 @@ static struct sk_buff *igb_run_xdp(struct igb_adapter *adapter, break; case XDP_TX: result = igb_xdp_xmit_back(adapter, xdp); + if (result == IGB_XDP_CONSUMED) + goto out_failure; break; case XDP_REDIRECT: err = xdp_do_redirect(adapter->netdev, xdp, xdp_prog); - if (!err) - result = IGB_XDP_REDIR; - else - result = IGB_XDP_CONSUMED; + if (err) + goto out_failure; + result = IGB_XDP_REDIR; break; default: bpf_warn_invalid_xdp_action(act); fallthrough; case XDP_ABORTED: +out_failure: trace_xdp_exception(rx_ring->netdev, xdp_prog, act); fallthrough; case XDP_DROP: