{"id":808827,"url":"http://patchwork.ozlabs.org/api/1.0/patches/808827/?format=json","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/1.0/projects/7/?format=json","name":"Linux network development","link_name":"netdev","list_id":"netdev.vger.kernel.org","list_email":"netdev@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null},"msgid":"<20170901165357.465121-5-yhs@fb.com>","date":"2017-09-01T16:53:57","name":"[net-next,4/4] bpf: add a test case for helper bpf_perf_prog_read_time","commit_ref":null,"pull_url":null,"state":"changes-requested","archived":true,"hash":"33342da549447ce02fa375bdad42a8b1b9a12a72","submitter":{"id":71628,"url":"http://patchwork.ozlabs.org/api/1.0/people/71628/?format=json","name":"Yonghong Song","email":"yhs@fb.com"},"delegate":{"id":34,"url":"http://patchwork.ozlabs.org/api/1.0/users/34/?format=json","username":"davem","first_name":"David","last_name":"Miller","email":"davem@davemloft.net"},"mbox":"http://patchwork.ozlabs.org/project/netdev/patch/20170901165357.465121-5-yhs@fb.com/mbox/","series":[{"id":1077,"url":"http://patchwork.ozlabs.org/api/1.0/series/1077/?format=json","date":"2017-09-01T16:53:53","name":"bpf: add two helpers to read perf event enabled/running time","version":1,"mbox":"http://patchwork.ozlabs.org/series/1077/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/808827/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"patchwork-incoming@ozlabs.org","Delivered-To":"patchwork-incoming@ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=fb.com header.i=@fb.com header.b=\"nCx80SoR\";\n\tdkim-atps=neutral"],"Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xkQLz2Dtdz9t2x\n\tfor ;\n\tSat, 2 Sep 2017 02:54:19 +1000 (AEST)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752392AbdIAQyQ (ORCPT );\n\tFri, 1 Sep 2017 12:54:16 -0400","from mx0b-00082601.pphosted.com ([67.231.153.30]:53989 \"EHLO\n\tmx0a-00082601.pphosted.com\" rhost-flags-OK-OK-OK-FAIL)\n\tby vger.kernel.org with ESMTP id S1752292AbdIAQx7 (ORCPT\n\t); Fri, 1 Sep 2017 12:53:59 -0400","from pps.filterd (m0001255.ppops.net [127.0.0.1])\n\tby mx0b-00082601.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv81GpjL2020992\n\tfor ; Fri, 1 Sep 2017 09:53:59 -0700","from mail.thefacebook.com ([199.201.64.23])\n\tby mx0b-00082601.pphosted.com with ESMTP id 2cq176jkjq-1\n\t(version=TLSv1 cipher=ECDHE-RSA-AES256-SHA bits=256 verify=NOT)\n\tfor ; Fri, 01 Sep 2017 09:53:59 -0700","from mx-out.facebook.com (192.168.52.123) by\n\tPRN-CHUB05.TheFacebook.com (192.168.16.15) with Microsoft SMTP Server\n\tid 14.3.319.2; Fri, 1 Sep 2017 09:53:58 -0700","by devbig474.prn1.facebook.com (Postfix, from userid 128203) id\n\tEDFD646E03FC; Fri, 1 Sep 2017 09:53:57 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=fb.com;\n\th=from : to : cc : subject\n\t: date : message-id : in-reply-to : references : mime-version :\n\tcontent-type; s=facebook;\n\tbh=heBT0ukdQnndVX6e6IXqvB6vjhEo+qnoBej1PsPw5po=; \n\tb=nCx80SoRPdaxsN3FPPFX9Mpb2cvd4PL89gAcEKCO4Afl/GW1/J/xBNu0wFeNrLSfcLEo\n\tqLeAXZJLhXCe048be0+7CmNHGQJGc91DQ78DXtV5zFp3t0Mqp0QLGiMTbPHbTsWNzfEM\n\tugfbYagzyrsyh7xmXwVcxwD/kHCPmHh0lb4= ","X-ThriftRelayHost":"devbig474.prn1.facebook.com","Smtp-Origin-Hostprefix":"devbig","From":"Yonghong Song ","Smtp-Origin-Hostname":"devbig474.prn1.facebook.com","To":", , ,\n\t, ","CC":"","Smtp-Origin-Cluster":"prn1c29","Subject":"[PATCH net-next 4/4] bpf: add a test case for helper\n\tbpf_perf_prog_read_time","Date":"Fri, 1 Sep 2017 09:53:57 -0700","Message-ID":"<20170901165357.465121-5-yhs@fb.com>","X-Mailer":"git-send-email 2.9.5","In-Reply-To":"<20170901165357.465121-1-yhs@fb.com>","References":"<20170901165357.465121-1-yhs@fb.com>","X-FB-Internal":["Safe","Safe"],"MIME-Version":"1.0","Content-Type":"text/plain","X-Proofpoint-Spam-Reason":"safe","X-Proofpoint-Virus-Version":"vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-01_04:, , signatures=0","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netdev@vger.kernel.org"},"content":"The bpf sample program trace_event is enhanced to use the new\nhelper to print out enabled/running time.\n\nSigned-off-by: Yonghong Song \n---\n samples/bpf/trace_event_kern.c | 5 +++++\n tools/testing/selftests/bpf/bpf_helpers.h | 3 +++\n 2 files changed, 8 insertions(+)","diff":"diff --git a/samples/bpf/trace_event_kern.c b/samples/bpf/trace_event_kern.c\nindex 41b6115..f372660 100644\n--- a/samples/bpf/trace_event_kern.c\n+++ b/samples/bpf/trace_event_kern.c\n@@ -37,8 +37,10 @@ struct bpf_map_def SEC(\"maps\") stackmap = {\n SEC(\"perf_event\")\n int bpf_prog1(struct bpf_perf_event_data *ctx)\n {\n+\tchar time_fmt[] = \"Time Enabled: %lld, Time Running: %lld\";\n \tchar fmt[] = \"CPU-%d period %lld ip %llx\";\n \tu32 cpu = bpf_get_smp_processor_id();\n+\tstruct bpf_perf_time time_buf;\n \tstruct key_t key;\n \tu64 *val, one = 1;\n \n@@ -54,6 +56,9 @@ int bpf_prog1(struct bpf_perf_event_data *ctx)\n \t\treturn 0;\n \t}\n \n+\tbpf_perf_prog_read_time(ctx, (void *)&time_buf, sizeof(struct bpf_perf_time));\n+\tbpf_trace_printk(time_fmt, sizeof(time_fmt), time_buf.enabled, time_buf.running);\n+\n \tval = bpf_map_lookup_elem(&counts, &key);\n \tif (val)\n \t\t(*val)++;\ndiff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h\nindex fe41852..ddad690 100644\n--- a/tools/testing/selftests/bpf/bpf_helpers.h\n+++ b/tools/testing/selftests/bpf/bpf_helpers.h\n@@ -74,6 +74,9 @@ static int (*bpf_perf_read_counter_time)(void *map, unsigned long long flags,\n \t\t\t\t void *counter_time_buf,\n \t\t\t\t unsigned int buf_size) =\n \t(void *) BPF_FUNC_perf_read_counter_time;\n+static int (*bpf_perf_prog_read_time)(void *ctx, void *time_buf,\n+\t\t\t\t unsigned int size) =\n+\t(void *) BPF_FUNC_perf_prog_read_time;\n \n \n /* llvm builtin functions that eBPF C program may use to\n","prefixes":["net-next","4/4"]}