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GET /api/patches/93681/?format=api
{ "id": 93681, "url": "https://patches.dpdk.org/api/patches/93681/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20210601030644.3318-5-chenbo.xia@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20210601030644.3318-5-chenbo.xia@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20210601030644.3318-5-chenbo.xia@intel.com", "date": "2021-06-01T03:06:42", "name": "[RFC,v3,4/6] eal: add a helper for reading string from sysfs", "commit_ref": null, "pull_url": null, "state": "changes-requested", "archived": true, "hash": "445fb0cc82bc8dee4691366f8ef015b000cd0910", "submitter": { "id": 1276, "url": "https://patches.dpdk.org/api/people/1276/?format=api", "name": "Chenbo Xia", "email": "chenbo.xia@intel.com" }, "delegate": { "id": 24651, "url": "https://patches.dpdk.org/api/users/24651/?format=api", "username": "dmarchand", "first_name": "David", "last_name": "Marchand", "email": "david.marchand@redhat.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20210601030644.3318-5-chenbo.xia@intel.com/mbox/", "series": [ { "id": 17176, "url": "https://patches.dpdk.org/api/series/17176/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=17176", "date": "2021-06-01T03:06:38", "name": "Add mdev (Mediated device) support in DPDK", "version": 3, "mbox": "https://patches.dpdk.org/series/17176/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/93681/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/93681/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id F27DBA0524;\n\tTue, 1 Jun 2021 05:18:01 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id E02F640E64;\n\tTue, 1 Jun 2021 05:18:01 +0200 (CEST)", "from mga05.intel.com (mga05.intel.com [192.55.52.43])\n by mails.dpdk.org (Postfix) with ESMTP id B7F6040041\n for <dev@dpdk.org>; Tue, 1 Jun 2021 05:18:00 +0200 (CEST)", "from fmsmga002.fm.intel.com ([10.253.24.26])\n by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 31 May 2021 20:17:59 -0700", "from npg-dpdk-virtio-xiachenbo-nw.sh.intel.com ([10.67.118.250])\n by fmsmga002.fm.intel.com with ESMTP; 31 May 2021 20:17:53 -0700" ], "IronPort-SDR": [ "\n FWJdBM8wRcovLnTcMC7atDNZk+3TXagjFzUX1ZNfO5wLbFlCcljwaXUfk1pC9G6gqH8QJlvbVN\n nqadjeur+NUA==", "\n +MJuUDgC2I4+WO0/p93GNXzhreq3LyP0hRGRJ9KI9UMA/kdFTlcb6oNHBKZ6Z896cOITJDZAcP\n Lb2VsDl0viOA==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6200,9189,10001\"; a=\"289079337\"", "E=Sophos;i=\"5.83,239,1616482800\"; d=\"scan'208\";a=\"289079337\"", "E=Sophos;i=\"5.83,239,1616482800\"; d=\"scan'208\";a=\"482315466\"" ], "X-ExtLoop1": "1", "From": "Chenbo Xia <chenbo.xia@intel.com>", "To": "dev@dpdk.org, thomas@monjalon.net, cunming.liang@intel.com,\n jingjing.wu@intel.com", "Cc": "anatoly.burakov@intel.com, ferruh.yigit@intel.com, mdr@ashroe.eu,\n nhorman@tuxdriver.com, bruce.richardson@intel.com,\n david.marchand@redhat.com, stephen@networkplumber.org,\n konstantin.ananyev@intel.com, Tiwei Bie <tiwei.bie@intel.com>", "Date": "Tue, 1 Jun 2021 11:06:42 +0800", "Message-Id": "<20210601030644.3318-5-chenbo.xia@intel.com>", "X-Mailer": "git-send-email 2.17.1", "In-Reply-To": "<20210601030644.3318-1-chenbo.xia@intel.com>", "References": "<20190715075214.16616-6-tiwei.bie@intel.com>\n <20210601030644.3318-1-chenbo.xia@intel.com>", "Subject": "[dpdk-dev] [RFC v3 4/6] eal: add a helper for reading string from\n sysfs", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <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>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "From: Tiwei Bie <tiwei.bie@intel.com>\n\nThis patch adds a helper for reading string from sysfs.\n\nSigned-off-by: Cunming Liang <cunming.liang@intel.com>\nSigned-off-by: Tiwei Bie <tiwei.bie@intel.com>\n---\n lib/eal/common/eal_filesystem.h | 10 ++++++++++\n lib/eal/freebsd/eal.c | 22 ++++++++++++++++++++++\n lib/eal/linux/eal.c | 22 ++++++++++++++++++++++\n lib/eal/version.map | 3 +++\n 4 files changed, 57 insertions(+)", "diff": "diff --git a/lib/eal/common/eal_filesystem.h b/lib/eal/common/eal_filesystem.h\nindex 5d21f07c20..be4c51ebb2 100644\n--- a/lib/eal/common/eal_filesystem.h\n+++ b/lib/eal/common/eal_filesystem.h\n@@ -104,4 +104,14 @@ eal_get_hugefile_path(char *buffer, size_t buflen, const char *hugedir, int f_id\n * Used to read information from files on /sys */\n int eal_parse_sysfs_value(const char *filename, unsigned long *val);\n \n+/**\n+ * @warning\n+ * @b EXPERIMENTAL: this API may change without prior notice\n+ *\n+ * Function to read a line from a file on the filesystem.\n+ * Used to read information from files on /sys\n+ */\n+__rte_experimental\n+int rte_eal_parse_sysfs_str(const char *filename, char *buf, unsigned long sz);\n+\n #endif /* EAL_FILESYSTEM_H */\ndiff --git a/lib/eal/freebsd/eal.c b/lib/eal/freebsd/eal.c\nindex f4d1676754..002f07f4da 100644\n--- a/lib/eal/freebsd/eal.c\n+++ b/lib/eal/freebsd/eal.c\n@@ -169,6 +169,28 @@ eal_parse_sysfs_value(const char *filename, unsigned long *val)\n \treturn 0;\n }\n \n+int\n+rte_eal_parse_sysfs_str(const char *filename, char *buf, unsigned long sz)\n+{\n+\tFILE *f;\n+\n+\tf = fopen(filename, \"r\");\n+\tif (f == NULL) {\n+\t\tRTE_LOG(ERR, EAL, \"%s(): cannot open sysfs file %s\\n\",\n+\t\t\t__func__, filename);\n+\t\treturn -1;\n+\t}\n+\n+\tif (fgets(buf, sz, f) == NULL) {\n+\t\tRTE_LOG(ERR, EAL, \"%s(): cannot read sysfs file %s\\n\",\n+\t\t\t__func__, filename);\n+\t\tfclose(f);\n+\t\treturn -1;\n+\t}\n+\n+\tfclose(f);\n+\treturn 0;\n+}\n \n /* create memory configuration in shared/mmap memory. Take out\n * a write lock on the memsegs, so we can auto-detect primary/secondary.\ndiff --git a/lib/eal/linux/eal.c b/lib/eal/linux/eal.c\nindex ba19fc6347..d5917a48ca 100644\n--- a/lib/eal/linux/eal.c\n+++ b/lib/eal/linux/eal.c\n@@ -260,6 +260,28 @@ eal_parse_sysfs_value(const char *filename, unsigned long *val)\n \treturn 0;\n }\n \n+int\n+rte_eal_parse_sysfs_str(const char *filename, char *buf, unsigned long sz)\n+{\n+\tFILE *f;\n+\n+\tf = fopen(filename, \"r\");\n+\tif (f == NULL) {\n+\t\tRTE_LOG(ERR, EAL, \"%s(): cannot open sysfs file %s\\n\",\n+\t\t\t__func__, filename);\n+\t\treturn -1;\n+\t}\n+\n+\tif (fgets(buf, sz, f) == NULL) {\n+\t\tRTE_LOG(ERR, EAL, \"%s(): cannot read sysfs file %s\\n\",\n+\t\t\t__func__, filename);\n+\t\tfclose(f);\n+\t\treturn -1;\n+\t}\n+\n+\tfclose(f);\n+\treturn 0;\n+}\n \n /* create memory configuration in shared/mmap memory. Take out\n * a write lock on the memsegs, so we can auto-detect primary/secondary.\ndiff --git a/lib/eal/version.map b/lib/eal/version.map\nindex fe5c3dac98..3d7fce26a4 100644\n--- a/lib/eal/version.map\n+++ b/lib/eal/version.map\n@@ -423,6 +423,9 @@ EXPERIMENTAL {\n \trte_version_release; # WINDOWS_NO_EXPORT\n \trte_version_suffix; # WINDOWS_NO_EXPORT\n \trte_version_year; # WINDOWS_NO_EXPORT\n+\n+\t# added in 21.08\n+\trte_eal_parse_sysfs_str; # WINDOWS_NO_EXPORT\n };\n \n INTERNAL {\n", "prefixes": [ "RFC", "v3", "4/6" ] }