From patchwork Wed Dec 9 11:18:38 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= X-Patchwork-Id: 340862 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=-10.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED autolearn=unavailable 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 C2BD3C4167B for ; Wed, 9 Dec 2020 11:22:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 823D023609 for ; Wed, 9 Dec 2020 11:22:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730699AbgLILWB (ORCPT ); Wed, 9 Dec 2020 06:22:01 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:59690 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729130AbgLILUK (ORCPT ); Wed, 9 Dec 2020 06:20:10 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1607512723; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=xSOTlsGZZ/ADfKcdaJ8Ay5xDLSKq4CczFccCePJHcIk=; b=IT7tOjNU/v/A2MwUc+8BWQBfrwgDfAHQrhYC1xLjhp46/eIDZwiyfTixumlD7ymS/9u2Mi 0JfrZpfIs1tsFNwGn/QfEK7QM2B0e4X+i0dJe5IKmrOjIxU3WhvpL6ihLtylMTsFBJPPvO fE/y52MCUp+NlvBQ3/cKrbGFLhFiomw= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-372-BKdZmGRnNliJHQPX288lfQ-1; Wed, 09 Dec 2020 06:18:41 -0500 X-MC-Unique: BKdZmGRnNliJHQPX288lfQ-1 Received: by mail-wr1-f71.google.com with SMTP id b5so539608wrp.3 for ; Wed, 09 Dec 2020 03:18:41 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:date:message-id:user-agent :mime-version:content-transfer-encoding; bh=xSOTlsGZZ/ADfKcdaJ8Ay5xDLSKq4CczFccCePJHcIk=; b=uVPGP2kBpY12GVTxy+cNzqaJbON6ZForDnCv+bOeQFdamo9AUVftm3oDRX9S7OQaQQ 61Ycxy2Nw3GmnygcA9fbym0FrPA3sZIT568eofTHGS82Irtaj+GQ2bPqSmXPxdA+FTr8 CJMene9Fxzx+3xG/qH+fQjDZhxA3ytNS2ukbj7fuRkYrxZLrrJDtApfUdsRi7pdMQYGd FNcb4Wv2cGzc7VpnaVENdBSHBHmB6tD2GbO7Nb7EMNl9mUEsoBUFhb9Onh5LxmWTjj30 f5mP64Tpb0QI2Or8cjT3lmgHsqIqWbjGeDx+0l3j0A/EK330l7Ng+osUp0nqb2mdaV90 BMMQ== X-Gm-Message-State: AOAM530d2591VZ1TJssGarhfimf2z2EJkDcziLsrGSNm+AQdNbQyiSmF zscljoV58CHrjDM/XkvOm8LXM6uMikqv0srhmdNheQgjK14+HKT70gMI72rWcFU454DM3IYo+l3 ivH93Wh9nDEkqPZNl X-Received: by 2002:a5d:4209:: with SMTP id n9mr2104997wrq.128.1607512720465; Wed, 09 Dec 2020 03:18:40 -0800 (PST) X-Google-Smtp-Source: ABdhPJzm5RxsK1e736lOeUy/K4LoocHFwg4m6StAtUALim1kfo/PoU+Wv+tRPAcTaMmDK/AR8J9m6Q== X-Received: by 2002:a5d:4209:: with SMTP id n9mr2104984wrq.128.1607512720296; Wed, 09 Dec 2020 03:18:40 -0800 (PST) Received: from alrua-x1.borgediget.toke.dk ([45.145.92.2]) by smtp.gmail.com with ESMTPSA id m81sm2860764wmf.29.2020.12.09.03.18.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Dec 2020 03:18:39 -0800 (PST) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 1576A180003; Wed, 9 Dec 2020 12:18:38 +0100 (CET) Subject: [PATCH bpf v3 0/7] selftests/bpf: Restore test_offload.py to working order From: =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= To: Jakub Kicinski Cc: "David S. Miller" , Daniel Borkmann , Alexei Starovoitov , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Jesper Dangaard Brouer , "Michael S. Tsirkin" , Romain Perier , Allen Pais , Grygorii Strashko , Simon Horman , "Gustavo A. R. Silva" , Lorenzo Bianconi , Wei Yongjun , Jiri Benc , oss-drivers@netronome.com, linux-omap@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org Date: Wed, 09 Dec 2020 12:18:38 +0100 Message-ID: <160751271801.104774.5575431902172553440.stgit@toke.dk> User-Agent: StGit/0.23 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This series restores the test_offload.py selftest to working order. It seems a number of subtle behavioural changes have crept into various subsystems which broke test_offload.py in a number of ways. Most of these are fairly benign changes where small adjustments to the test script seems to be the best fix, but one is an actual kernel bug that I've observed in the wild caused by a bad interaction between xdp_attachment_flags_ok() and the rework of XDP program handling in the core netdev code. Patch 1 fixes the bug by removing xdp_attachment_flags_ok(), and the reminder of the patches are adjustments to test_offload.py, including a new feature for netdevsim to force a BPF verification fail. Please see the individual patches for details. Changelog: v3: - Add Fixes: tags v2: - Replace xdp_attachment_flags_ok() with a check in dev_xdp_attach() - Better packing of struct nsim_dev --- Toke Høiland-Jørgensen (7): xdp: remove the xdp_attachment_flags_ok() callback selftests/bpf/test_offload.py: Remove check for program load flags match netdevsim: Add debugfs toggle to reject BPF programs in verifier selftests/bpf/test_offload.py: only check verifier log on verification fails selftests/bpf/test_offload.py: fix expected case of extack messages selftests/bpf/test_offload.py: reset ethtool features after failed setting selftests/bpf/test_offload.py: filter bpftool internal map when counting maps drivers/net/netdevsim/bpf.c | 12 ++++- drivers/net/netdevsim/netdevsim.h | 1 + tools/testing/selftests/bpf/test_offload.py | 53 +++++++++++---------- 3 files changed, 40 insertions(+), 26 deletions(-)