From mboxrd@z Thu Jan 1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from dpdk.org (dpdk.org [92.243.14.124])
by inbox.dpdk.org (Postfix) with ESMTP id C812EA0562;
Sun, 29 Mar 2020 16:47:13 +0200 (CEST)
Received: from [92.243.14.124] (localhost [127.0.0.1])
by dpdk.org (Postfix) with ESMTP id 0F74E2E8F;
Sun, 29 Mar 2020 16:44:22 +0200 (CEST)
Received: from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com
[67.231.156.173]) by dpdk.org (Postfix) with ESMTP id 510A72E8F
for <dev@dpdk.org>; Sun, 29 Mar 2020 16:44:20 +0200 (CEST)
Received: from pps.filterd (m0045851.ppops.net [127.0.0.1])
by mx0b-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id
02TEeRWs013022; Sun, 29 Mar 2020 07:44:19 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com;
h=from : to : cc :
subject : date : message-id : in-reply-to : references : mime-version :
content-transfer-encoding : content-type; s=pfpt0818;
bh=/EGDJ9G6suW9XlXoBytH9zFNRbMkHJBC/aHTZtgQSTA=;
b=lc0cMfRguPh+AotTdwjbXVdKiod1VaKK8n3gNcP9TJIRSxBumouukjx39plbb/o21QTu
wazChWPOz6hzJASoS+GXGb3j9nAQSHDB/ytfNsp/CnN10S5COiQe/r4Cr/s11otyZOq+
VYMtaR05VUhQTXsqnKmtzFXuQQIoUt7vFSVGSXF72dW/nFsQ24EauBuhg6YFyR+HiNH1
CgO8Uk5UudkSHrJlK9CDYEK6qMd2xvPVftrVDKpC46Mcox73iAdRQIZT97cm0NmzYmIZ
GYf8BH3gIxIjkZ3H406FPLrgVrXZC/WsNB9jhx9g+ZPcgmdgrAsf2jAtbki5e4mX+d8c Zw==
Received: from sc-exch02.marvell.com ([199.233.58.182])
by mx0b-0016f401.pphosted.com with ESMTP id 30263kb5j3-1
(version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT);
Sun, 29 Mar 2020 07:44:19 -0700
Received: from DC5-EXCH01.marvell.com (10.69.176.38) by SC-EXCH02.marvell.com
(10.93.176.82) with Microsoft SMTP Server (TLS) id 15.0.1497.2;
Sun, 29 Mar 2020 07:44:17 -0700
Received: from SC-EXCH03.marvell.com (10.93.176.83) by DC5-EXCH01.marvell.com
(10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.2;
Sun, 29 Mar 2020 07:44:16 -0700
Received: from maili.marvell.com (10.93.176.43) by SC-EXCH03.marvell.com
(10.93.176.83) with Microsoft SMTP Server id 15.0.1497.2 via Frontend
Transport; Sun, 29 Mar 2020 07:44:16 -0700
Received: from jerin-lab.marvell.com (jerin-lab.marvell.com [10.28.34.14])
by maili.marvell.com (Postfix) with ESMTP id 6A7393F7044;
Sun, 29 Mar 2020 07:44:14 -0700 (PDT)
From: <jerinj@marvell.com>
To: Jerin Jacob <jerinj@marvell.com>, Sunil Kumar Kori <skori@marvell.com>
CC: <dev@dpdk.org>, <thomas@monjalon.net>, <bruce.richardson@intel.com>,
<david.marchand@redhat.com>, <mattias.ronnblom@ericsson.com>
Date: Sun, 29 Mar 2020 20:13:21 +0530
Message-ID: <20200329144342.1543749-13-jerinj@marvell.com>
X-Mailer: git-send-email 2.25.1
In-Reply-To: <20200329144342.1543749-1-jerinj@marvell.com>
References: <20200325211603.240288-1-jerinj@marvell.com>
<20200329144342.1543749-1-jerinj@marvell.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain
X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.645
definitions=2020-03-29_05:2020-03-27,
2020-03-29 signatures=0
Subject: [dpdk-dev] [PATCH v3 12/33] eal/trace: implement trace save
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
<mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
<mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>
From: Jerin Jacob <jerinj@marvell.com>
Implement rte_trace_save(), which will save the metadata
file and trace memory snapshot to the trace directory.
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
---
.../common/eal_common_trace_utils.c | 80 +++++++++++++++++++
lib/librte_eal/rte_eal_version.map | 1 +
2 files changed, 81 insertions(+)
diff --git a/lib/librte_eal/common/eal_common_trace_utils.c b/lib/librte_eal/common/eal_common_trace_utils.c
index b288a72f0..64e7a7cfa 100644
--- a/lib/librte_eal/common/eal_common_trace_utils.c
+++ b/lib/librte_eal/common/eal_common_trace_utils.c
@@ -213,3 +213,83 @@ trace_mkdir(void)
return 0;
}
+static int
+trace_meta_save(struct trace *trace)
+{
+ char file_name[PATH_MAX];
+ FILE *f;
+ int rc;
+
+ rc = snprintf(file_name, PATH_MAX, "%s/metadata", trace->dir);
+ if (rc < 0)
+ return rc;
+
+ f = fopen(file_name, "w");
+ if (f == NULL)
+ return -errno;
+
+ rc = rte_trace_metadata_dump(f);
+
+ if (fclose(f))
+ rc = -errno;
+
+ return rc;
+}
+
+
+static inline int
+trace_file_sz(struct __rte_trace_header *hdr)
+{
+ return sizeof(struct __rte_trace_stream_header) + hdr->offset;
+}
+
+static int
+trace_mem_save(struct trace *trace, struct __rte_trace_header *hdr,
+ uint32_t cnt)
+{
+ char file_name[PATH_MAX];
+ FILE *f;
+ int rc;
+
+ rc = snprintf(file_name, PATH_MAX, "%s/channel0_%d", trace->dir, cnt);
+ if (rc < 0)
+ return rc;
+
+ f = fopen(file_name, "w");
+ if (f == NULL)
+ return -errno;
+
+ rc = fwrite(&hdr->stream_header, trace_file_sz(hdr), 1, f);
+ rc = (rc == 1) ? 0 : -EACCES;
+
+ if (fclose(f))
+ rc = -errno;
+
+ return rc;
+}
+
+int
+rte_trace_save(void)
+{
+ struct trace *trace = trace_obj_get();
+ struct __rte_trace_header *header;
+ uint32_t count;
+ int rc = 0;
+
+ if (trace->nb_trace_mem_list == 0)
+ return rc;
+
+ rc = trace_meta_save(trace);
+ if (rc)
+ return rc;
+
+ rte_spinlock_lock(&trace->lock);
+ for (count = 0; count < trace->nb_trace_mem_list; count++) {
+ header = trace->lcore_meta[count].mem;
+ rc = trace_mem_save(trace, header, count);
+ if (rc)
+ break;
+ }
+ rte_spinlock_unlock(&trace->lock);
+ return rc;
+}
diff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map
index 82f4461e2..f841cc7d6 100644
--- a/lib/librte_eal/rte_eal_version.map
+++ b/lib/librte_eal/rte_eal_version.map
@@ -360,6 +360,7 @@ EXPERIMENTAL {
rte_trace_pattern;
rte_trace_regexp;
rte_trace_by_name;
+ rte_trace_save;
rte_trace_metadata_dump;
rte_trace_dump;
};
--
2.25.1