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=-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,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 5D9FAC83001 for ; Thu, 30 Apr 2020 07:15:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3F26F20784 for ; Thu, 30 Apr 2020 07:15:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=fb.com header.i=@fb.com header.b="VA0N9sbn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726549AbgD3HPY (ORCPT ); Thu, 30 Apr 2020 03:15:24 -0400 Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:1346 "EHLO mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726427AbgD3HPX (ORCPT ); Thu, 30 Apr 2020 03:15:23 -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 03U7B05W012200 for ; Thu, 30 Apr 2020 00:15:23 -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=oZEpp5dTUNXoDUGJqwDCPbgZ4r4OQQTpbp66PAlL5BY=; b=VA0N9sbnbG+Kdhctz1OOC2UEK/Kua6tInVyI1kHtfYrVHwCVjIhrijTOkShMPbW/amo2 nVBybBrUC5M/IDrnaJ+IGenlcLWRYI5paehRns1EIcwny+m5wBT6FWr6Os4pDsvqye40 BvxwjfOcduPsJ1LM0vsGFM4JdPMFDT33TcM= Received: from mail.thefacebook.com ([163.114.132.120]) by mx0a-00082601.pphosted.com with ESMTP id 30qf81b8sr-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Thu, 30 Apr 2020 00:15:23 -0700 Received: from intmgw004.03.ash8.facebook.com (2620:10d:c085:208::f) by mail.thefacebook.com (2620:10d:c085:11d::4) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1847.3; Thu, 30 Apr 2020 00:15:22 -0700 Received: by devbig006.ftw2.facebook.com (Postfix, from userid 4523) id C417462E4E4F; Thu, 30 Apr 2020 00:15:19 -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 v9 bpf-next 2/3] libbpf: add support for command BPF_ENABLE_STATS Date: Thu, 30 Apr 2020 00:15:05 -0700 Message-ID: <20200430071506.1408910-3-songliubraving@fb.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200430071506.1408910-1-songliubraving@fb.com> References: <20200430071506.1408910-1-songliubraving@fb.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-FB-Internal: Safe Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.676 definitions=2020-04-30_02:2020-04-30,2020-04-30 signatures=0 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 lowpriorityscore=0 malwarescore=0 spamscore=0 bulkscore=0 adultscore=0 clxscore=1015 suspectscore=8 mlxscore=0 impostorscore=0 mlxlogscore=883 phishscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2004300058 X-FB-Internal: deliver Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@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 | 1 + 3 files changed, 12 insertions(+) diff --git a/tools/lib/bpf/bpf.c b/tools/lib/bpf/bpf.c index 8f2f0958d446..43322f0d6c7f 100644 --- a/tools/lib/bpf/bpf.c +++ b/tools/lib/bpf/bpf.c @@ -841,3 +841,13 @@ int bpf_task_fd_query(int pid, int fd, __u32 flags, = char *buf, __u32 *buf_len, =20 return err; } + +int bpf_enable_stats(enum bpf_stats_type type) +{ + union bpf_attr attr; + + memset(&attr, 0, sizeof(attr)); + attr.enable_stats.type =3D 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 335b457b3a25..1901b2777854 100644 --- a/tools/lib/bpf/bpf.h +++ b/tools/lib/bpf/bpf.h @@ -231,6 +231,7 @@ 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); =20 #ifdef __cplusplus } /* extern "C" */ diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map index 7cd49aa38005..e03bd4db827e 100644 --- a/tools/lib/bpf/libbpf.map +++ b/tools/lib/bpf/libbpf.map @@ -257,6 +257,7 @@ LIBBPF_0.0.8 { =20 LIBBPF_0.0.9 { global: + bpf_enable_stats; bpf_link_get_fd_by_id; bpf_link_get_next_id; } LIBBPF_0.0.8; --=20 2.24.1