From patchwork Tue Aug 16 12:15:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Westphal X-Patchwork-Id: 12944799 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 03CA0C32789 for ; Tue, 16 Aug 2022 12:18:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235122AbiHPMSW (ORCPT ); Tue, 16 Aug 2022 08:18:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235518AbiHPMSE (ORCPT ); Tue, 16 Aug 2022 08:18:04 -0400 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [IPv6:2a0a:51c0:0:12e:520::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 463BA95A2; Tue, 16 Aug 2022 05:15:33 -0700 (PDT) Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1oNvTm-0000oK-FB; Tue, 16 Aug 2022 14:15:30 +0200 From: Florian Westphal To: Cc: shuah@kernel.org, linux-kselftest@vger.kernel.org, Florian Westphal Subject: [PATCH nf 0/2] testing: selftests: nft_flowtable.sh: unbreak test script Date: Tue, 16 Aug 2022 14:15:20 +0200 Message-Id: <20220816121522.14278-1-fw@strlen.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org nft_flowtable.sh fails most of the time since 2738d9d963bd1f0 ("netfilter: flowtable: move dst_check to packet path"). Arguably the test scripts way of detecting 'offloaded' vs 'offload failed' was always flaky/broken. These patches fix this up: 1. first patch moves to random netns names so we don't trip over existing 'ns1' name (too generic...). 2. second patch reworks the 'offload appears to be non-working' by means of packet counters. Because counters are only incremented when a packet is handled by the classic forward path, check that the counter is lower than a given threshold (25% of file size). Florian Westphal (2): testing: selftests: nft_flowtable.sh: use random netns names testing: selftests: nft_flowtable.sh: rework test to detect offload failure .../selftests/netfilter/nft_flowtable.sh | 377 ++++++++++-------- 1 file changed, 207 insertions(+), 170 deletions(-)