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=-8.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 ABF97C4363D for ; Thu, 24 Sep 2020 23:02:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5ADD02396F for ; Thu, 24 Sep 2020 23:02:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="Xi8u0BH6" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726667AbgIXXCZ (ORCPT ); Thu, 24 Sep 2020 19:02:25 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:38236 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726205AbgIXXCZ (ORCPT ); Thu, 24 Sep 2020 19:02:25 -0400 Received: from pps.filterd (m0109334.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 08OMxP6R005513 for ; Thu, 24 Sep 2020 16:02:25 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : mime-version : content-transfer-encoding : content-type; s=facebook; bh=nTyej35x+vQc0suiILaFyXO+N4NlgC9CbfcA7q2vywA=; b=Xi8u0BH6vBmD3l0o73VoBFBY14sjlNdJS2IZnBtWYoKDSPmdSrNwZxY2xfPGBomRsZ00 uZv/9npzYi/FamTCUIhJZr6cP606cP/cZWWwJu5VQEZhk6AxgXNmC6l6DtuYxuYH0Owo bb5eI1AN4JgPZ9+d9cfJV2h7uoWCyrKGTMU= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 33qsp54k4w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Thu, 24 Sep 2020 16:02:25 -0700 Received: from intmgw001.08.frc2.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:21d::5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Thu, 24 Sep 2020 16:02:24 -0700 Received: by devbig006.ftw2.facebook.com (Postfix, from userid 4523) id 4FBFD62E542E; Thu, 24 Sep 2020 16:02:12 -0700 (PDT) From: Song Liu To: , CC: , , , , , Song Liu Subject: [PATCH v5 bpf-next 0/3] enable BPF_PROG_TEST_RUN for raw_tp Date: Thu, 24 Sep 2020 16:02:06 -0700 Message-ID: <20200924230209.2561658-1-songliubraving@fb.com> X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.235,18.0.687 definitions=2020-09-24_18:2020-09-24,2020-09-24 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 mlxscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 adultscore=0 malwarescore=0 spamscore=0 mlxlogscore=672 suspectscore=0 bulkscore=0 clxscore=1015 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2006250000 definitions=main-2009240166 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org This set enables BPF_PROG_TEST_RUN for raw_tracepoint type programs. This set also enables running the raw_tp program on a specific CPU. This featu= re can be used by user space to trigger programs that access percpu resource= s, e.g. perf_event, percpu variables. Changes v4 =3D> v5: 1.Fail test_run with non-zero test.cpu but no BPF_F_TEST_RUN_ON_CPU. (Andrii) 2. Add extra check for invalid test.cpu value. (Andrii) 3. Shuffle bpf_test_run_opts to remove holes. (Andrii) 4. Fixes in selftests. (Andrii) Changes v3 =3D> v4: 1. Use cpu+flags instead of cpu_plus. (Andrii) 2. Rework libbpf support. (Andrii) Changes v2 =3D> v3: 1. Fix memory leak in the selftest. (Andrii) 2. Use __u64 instead of unsigned long long. (Andrii) Changes v1 =3D> v2: 1. More checks for retval in the selftest. (John) 2. Remove unnecessary goto in bpf_prog_test_run_raw_tp. (John) Song Liu (3): bpf: enable BPF_PROG_TEST_RUN for raw_tracepoint libbpf: support test run of raw tracepoint programs selftests/bpf: add raw_tp_test_run include/linux/bpf.h | 3 + include/uapi/linux/bpf.h | 7 ++ kernel/bpf/syscall.c | 2 +- kernel/trace/bpf_trace.c | 1 + net/bpf/test_run.c | 91 +++++++++++++++++ tools/include/uapi/linux/bpf.h | 7 ++ tools/lib/bpf/bpf.c | 31 ++++++ tools/lib/bpf/bpf.h | 26 +++++ tools/lib/bpf/libbpf.map | 1 + tools/lib/bpf/libbpf_internal.h | 5 + .../bpf/prog_tests/raw_tp_test_run.c | 98 +++++++++++++++++++ .../bpf/progs/test_raw_tp_test_run.c | 24 +++++ 12 files changed, 295 insertions(+), 1 deletion(-) create mode 100644 tools/testing/selftests/bpf/prog_tests/raw_tp_test_ru= n.c create mode 100644 tools/testing/selftests/bpf/progs/test_raw_tp_test_ru= n.c -- 2.24.1