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GET /api/patches/46922/?format=api
{ "id": 46922, "url": "http://patches.dpdk.org/api/patches/46922/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20181017010412.23141-2-dg@adax.com/", "project": { "id": 1, "url": "http://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": "<20181017010412.23141-2-dg@adax.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20181017010412.23141-2-dg@adax.com", "date": "2018-10-17T01:04:08", "name": "[v4,1/6] kni: add API to set link status on kernel interface", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "b57bae14e5f3e78a9363394e29ab6087d4de8224", "submitter": { "id": 1040, "url": "http://patches.dpdk.org/api/people/1040/?format=api", "name": "Dan Gora", "email": "dg@adax.com" }, "delegate": { "id": 1, "url": "http://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20181017010412.23141-2-dg@adax.com/mbox/", "series": [ { "id": 1934, "url": "http://patches.dpdk.org/api/series/1934/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=1934", "date": "2018-10-17T01:04:08", "name": "[v4,1/6] kni: add API to set link status on kernel interface", "version": 4, "mbox": "http://patches.dpdk.org/series/1934/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/46922/comments/", "check": "warning", "checks": "http://patches.dpdk.org/api/patches/46922/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 948C65398;\n\tWed, 17 Oct 2018 03:04:40 +0200 (CEST)", "from mail-qk1-f195.google.com (mail-qk1-f195.google.com\n\t[209.85.222.195]) by dpdk.org (Postfix) with ESMTP id 041794CA2\n\tfor <dev@dpdk.org>; Wed, 17 Oct 2018 03:04:38 +0200 (CEST)", "by mail-qk1-f195.google.com with SMTP id m8-v6so15432357qka.12\n\tfor <dev@dpdk.org>; Tue, 16 Oct 2018 18:04:38 -0700 (PDT)", "from snappy.local.lan ([187.74.142.5])\n\tby smtp.gmail.com with ESMTPSA id\n\tv54-v6sm19547508qtc.81.2018.10.16.18.04.35\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128);\n\tTue, 16 Oct 2018 18:04:37 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;\n\th=sender:from:to:cc:subject:date:message-id:in-reply-to:references\n\t:mime-version:content-transfer-encoding;\n\tbh=kajm2DsQimx0cTUYq2+GByK6yINDQv2WFTOI11ERKtk=;\n\tb=eZsASNI8wpBsntWnZmZ5QDB8a5lFZjbhnhr1MqJBjrCzV6kyUGNPYE/jng6nGatkRU\n\tNolFVfCmxsnIFliY/LLTjvWj1PuFUsvPn2XbJZAGOKH578yQg2O1mmKgcQAZjD0Rg8GV\n\tqwVtvE4tcXak0XMkLbuJ6upaUjMbEt1eUh0TLAFDOeq7DOa+1z2BZfw7qKyHmPiX9HxN\n\t2YXUGWHhIFaYPKUsZbXwhyU0uBmYvHoFkHlz0c4Nnggru3AFx1PeVBM6NpUn7gmdMcVh\n\ttr4xDf1sj3RiJKlQFojPfBY97l6RwRLzWIw0egWP8TeOfIiRAEsiHhtJqlaNLJ4BssOv\n\tUa7Q==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:sender:from:to:cc:subject:date:message-id\n\t:in-reply-to:references:mime-version:content-transfer-encoding;\n\tbh=kajm2DsQimx0cTUYq2+GByK6yINDQv2WFTOI11ERKtk=;\n\tb=sAjJ2VBL+gcgfG3x4Da8A+507Ka+fsLhDo+riQk2bW+V4baI/ZqjJ1KQb1qGMetuly\n\t5JXC9/a5ERaAWpRKQUD00vj1AP9O6ilcfuKld21yPiUFe1Ya2PBFUHKmrRzeNoQL6/C8\n\tn3t7j5q9QgMl/tDSV7QohEDyjKaFtoxCSESJEanQJg1YmkRNVFe9DcF2CN5WGt2dznPA\n\teLeuQSWJShtREJ2Kqz7FR7dZkZRsxiqA+Et28b5VEMCnmTUZRGLDzZFRX5tWrqZ5zyOA\n\ttOfV3ZB8qUtdDmIW04Y5/w91G6G8rJFVqybxO7cAan493YOEwqjHLo2MrQBiGfhlUQ3z\n\tVDUA==", "X-Gm-Message-State": "ABuFfogFNpumBrmOHMWjEl/mCUjatOxnTu+TJoAw3SwGAliu0pNGnYdN\n\tgquMzaVY9goMT3UhBfyfzljB2U8m8qA=", "X-Google-Smtp-Source": "ACcGV63zTxkUIW91RAjWwnFMTcOmwvex/xCxkUDcxNR0Cjn4tOdU1P1F77xzxhqHT74wWT/23KtpUQ==", "X-Received": "by 2002:a37:3245:: with SMTP id\n\ty66-v6mr22208117qky.205.1539738277897; \n\tTue, 16 Oct 2018 18:04:37 -0700 (PDT)", "From": "Dan Gora <dg@adax.com>", "To": "dev@dpdk.org", "Cc": "Igor Ryzhov <iryzhov@nfware.com>,\n\tStephen Hemminger <stephen@networkplumber.org>,\n\tFerruh Yigit <ferruh.yigit@intel.com>, Dan Gora <dg@adax.com>", "Date": "Tue, 16 Oct 2018 22:04:08 -0300", "Message-Id": "<20181017010412.23141-2-dg@adax.com>", "X-Mailer": "git-send-email 2.19.0", "In-Reply-To": "<20180911232906.18352-1-dg@adax.com>", "References": "<20180911232906.18352-1-dg@adax.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[dpdk-dev] [PATCH v4 1/6] kni: add API to set link status on kernel\n\tinterface", "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>,\n\t<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\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "Add a new API function to KNI, rte_kni_update_link() to allow DPDK\napplications to update the link status for KNI network interfaces in\nthe linux kernel.\n\nSigned-off-by: Dan Gora <dg@adax.com>\n---\n lib/librte_kni/rte_kni.c | 41 ++++++++++++++++++++++++++++++\n lib/librte_kni/rte_kni.h | 20 +++++++++++++++\n lib/librte_kni/rte_kni_version.map | 6 +++++\n 3 files changed, 67 insertions(+)", "diff": "diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c\nindex b8edd40f4..c9726d4f8 100644\n--- a/lib/librte_kni/rte_kni.c\n+++ b/lib/librte_kni/rte_kni.c\n@@ -717,6 +717,47 @@ rte_kni_unregister_handlers(struct rte_kni *kni)\n \n \treturn 0;\n }\n+\n+int __rte_experimental\n+rte_kni_update_link(struct rte_kni *kni, unsigned int linkup)\n+{\n+\tchar path[64];\n+\tchar old_carrier[2];\n+\tconst char *new_carrier;\n+\tint old_linkup;\n+\tint fd, ret;\n+\n+\tif (kni == NULL)\n+\t\treturn -1;\n+\n+\tsnprintf(path, sizeof(path), \"/sys/devices/virtual/net/%s/carrier\",\n+\t\tkni->name);\n+\n+\tfd = open(path, O_RDWR);\n+\tif (fd == -1) {\n+\t\tRTE_LOG(ERR, KNI, \"Failed to open file: %s.\\n\", path);\n+\t\treturn -1;\n+\t}\n+\n+\tret = read(fd, old_carrier, 2);\n+\tif (ret < 1) {\n+\t\tclose(fd);\n+\t\treturn -1;\n+\t}\n+\told_linkup = (old_carrier[0] == '1');\n+\n+\tnew_carrier = linkup ? \"1\" : \"0\";\n+\tret = write(fd, new_carrier, 1);\n+\tif (ret < 1) {\n+\t\tRTE_LOG(ERR, KNI, \"Failed to write file: %s.\\n\", path);\n+\t\tclose(fd);\n+\t\treturn -1;\n+\t}\n+\n+\tclose(fd);\n+\treturn old_linkup;\n+}\n+\n void\n rte_kni_close(void)\n {\ndiff --git a/lib/librte_kni/rte_kni.h b/lib/librte_kni/rte_kni.h\nindex 601abdfc6..02ca43b4b 100644\n--- a/lib/librte_kni/rte_kni.h\n+++ b/lib/librte_kni/rte_kni.h\n@@ -232,6 +232,26 @@ int rte_kni_register_handlers(struct rte_kni *kni, struct rte_kni_ops *ops);\n */\n int rte_kni_unregister_handlers(struct rte_kni *kni);\n \n+/**\n+ * Update link carrier state for KNI port.\n+ *\n+ * Update the linkup/linkdown state of a KNI interface in the kernel.\n+ *\n+ * @param kni\n+ * pointer to struct rte_kni.\n+ * @param linkup\n+ * New link state:\n+ * 0 for linkdown.\n+ * > 0 for linkup.\n+ *\n+ * @return\n+ * On failure: -1\n+ * Previous link state == linkdown: 0\n+ * Previous link state == linkup: 1\n+ */\n+int __rte_experimental\n+rte_kni_update_link(struct rte_kni *kni, unsigned int linkup);\n+\n /**\n * Close KNI device.\n */\ndiff --git a/lib/librte_kni/rte_kni_version.map b/lib/librte_kni/rte_kni_version.map\nindex acd515eb0..c877dc6aa 100644\n--- a/lib/librte_kni/rte_kni_version.map\n+++ b/lib/librte_kni/rte_kni_version.map\n@@ -15,3 +15,9 @@ DPDK_2.0 {\n \n \tlocal: *;\n };\n+\n+EXPERIMENTAL {\n+\tglobal:\n+\n+\trte_kni_update_link;\n+};\n", "prefixes": [ "v4", "1/6" ] }