From patchwork Wed Apr 29 00:29:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Liu X-Patchwork-Id: 220361 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=-9.9 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 4CAD1C83007 for ; Wed, 29 Apr 2020 00:29:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2BD9A20731 for ; Wed, 29 Apr 2020 00:29:47 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="MONl9hlN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726599AbgD2A3q (ORCPT ); Tue, 28 Apr 2020 20:29:46 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:46894 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726577AbgD2A3q (ORCPT ); Tue, 28 Apr 2020 20:29:46 -0400 Received: from pps.filterd (m0044010.ppops.net [127.0.0.1]) by mx0a-00082601.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 03T0GrYZ027706 for ; Tue, 28 Apr 2020 17:29:45 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding : content-type; s=facebook; bh=7R7IsYDhdkU5c5IAf0mtqOlnMrTZmkufYpvln0m5DNA=; b=MONl9hlNXwdRSNZ2xv19zEBw6O1j+AlxWq0VoKi0dRhDu+A6V7YWyE9LSH+jBROuszfb CnYzjAYbfRQU4DAb1td9Tdn7v8qS0FO56bjtkbgINtpXZSJy9PJ0OIjyxeuCTNBrhPsr WEvcUf9nxyE2kAiprrPUFN3ZMwEVbE+DsUE= Received: from maileast.thefacebook.com ([163.114.130.16]) by mx0a-00082601.pphosted.com with ESMTP id 30n57qb3fh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Tue, 28 Apr 2020 17:29:45 -0700 Received: from intmgw001.08.frc2.facebook.com (2620:10d:c0a8:1b::d) by mail.thefacebook.com (2620:10d:c0a8:83::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1847.3; Tue, 28 Apr 2020 17:29:44 -0700 Received: by devbig006.ftw2.facebook.com (Postfix, from userid 4523) id 77DB962E4BF9; Tue, 28 Apr 2020 17:29:39 -0700 (PDT) Smtp-Origin-Hostprefix: devbig From: Song Liu Smtp-Origin-Hostname: devbig006.ftw2.facebook.com To: , CC: , , , Song Liu Smtp-Origin-Cluster: ftw2c04 Subject: [PATCH v6 bpf-next 2/3] libbpf: add support for command BPF_ENABLE_STATS Date: Tue, 28 Apr 2020 17:29:21 -0700 Message-ID: <20200429002922.3064669-3-songliubraving@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200429002922.3064669-1-songliubraving@fb.com> References: <20200429002922.3064669-1-songliubraving@fb.com> MIME-Version: 1.0 X-FB-Internal: Safe X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.676 definitions=2020-04-28_15:2020-04-28,2020-04-28 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 suspectscore=8 lowpriorityscore=0 mlxscore=0 spamscore=0 phishscore=0 adultscore=0 clxscore=1015 impostorscore=0 malwarescore=0 mlxlogscore=836 priorityscore=1501 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004290000 X-FB-Internal: deliver Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org bpf_enable_stats() is added to enable given stats. Signed-off-by: Song Liu --- tools/lib/bpf/bpf.c | 10 ++++++++++ tools/lib/bpf/bpf.h | 1 + tools/lib/bpf/libbpf.map | 5 +++++ 3 files changed, 16 insertions(+) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 5cc1b0785d18..17bb4ad06c0e 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -826,3 +826,13 @@ int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len, return err; } + +int bpf_enable_stats(enum bpf_stats_type type) +{ + union bpf_attr attr; + + memset(&attr, 0, sizeof(attr)); + attr.enable_stats.type = type; + + return sys_bpf(BPF_ENABLE_STATS, &attr, sizeof(attr)); +} diff --git a/tools/lib/bpf/bpf.h b/tools/lib/bpf/bpf.h index 46d47afdd887..5996e64d324c 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -229,6 +229,7 @@ LIBBPF_API int bpf_load_btf(void *btf, __u32 btf_size, char *log_buf, LIBBPF_API int bpf_task_fd_query(int pid, int fd, __u32 flags, char *buf, __u32 *buf_len, __u32 *prog_id, __u32 *fd_type, __u64 *probe_offset, __u64 *probe_addr); +LIBBPF_API int bpf_enable_stats(enum bpf_stats_type type); #ifdef __cplusplus } /* extern "C" */ diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index bb8831605b25..ebd946faada5 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -254,3 +254,8 @@ LIBBPF_0.0.8 { bpf_program__set_lsm; bpf_set_link_xdp_fd_opts; } LIBBPF_0.0.7; + +LIBBPF_0.0.9 { + global: + bpf_enable_stats; +} LIBBPF_0.0.8; \ No newline at end of file