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GET /api/patches/19500/?format=api
{ "id": 19500, "url": "http://patches.dpdk.org/api/patches/19500/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/1484637244-7548-2-git-send-email-jerin.jacob@caviumnetworks.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": "<1484637244-7548-2-git-send-email-jerin.jacob@caviumnetworks.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1484637244-7548-2-git-send-email-jerin.jacob@caviumnetworks.com", "date": "2017-01-17T07:13:36", "name": "[dpdk-dev,v4,01/29] eal: introduce I/O device memory barriers", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "96a85467676742f300b5d028fde6fe9a7a5a919a", "submitter": { "id": 305, "url": "http://patches.dpdk.org/api/people/305/?format=api", "name": "Jerin Jacob", "email": "jerin.jacob@caviumnetworks.com" }, "delegate": null, "mbox": "http://patches.dpdk.org/project/dpdk/patch/1484637244-7548-2-git-send-email-jerin.jacob@caviumnetworks.com/mbox/", "series": [], "comments": "http://patches.dpdk.org/api/patches/19500/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/19500/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 [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 965C72C4D;\n\tTue, 17 Jan 2017 08:14:53 +0100 (CET)", "from NAM03-BY2-obe.outbound.protection.outlook.com\n\t(mail-by2nam03on0052.outbound.protection.outlook.com [104.47.42.52])\n\tby dpdk.org (Postfix) with ESMTP id 3FD76108F\n\tfor <dev@dpdk.org>; Tue, 17 Jan 2017 08:14:46 +0100 (CET)", "from localhost.caveonetworks.com (111.93.218.67) by\n\tBY1PR0701MB1724.namprd07.prod.outlook.com (10.162.111.143) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.845.12;\n\tTue, 17 Jan 2017 07:14:42 +0000" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=CAVIUMNETWORKS.onmicrosoft.com; s=selector1-cavium-com;\n\th=From:Date:Subject:Message-ID:Content-Type:MIME-Version;\n\tbh=ZsPqXTxXcBUTcYc7dWL4kUyTgstyR0AP8FXpApLsOds=;\n\tb=KXhhbS2VFiegcxOx13BeqyPzM7NpN7SAqsbTmW629KEoJgEXkMaeB0Xwn5gz3iCrHLQmEIvgyUw9/DUW4phQhbXUpIOjRyOfz1v8/o7EbpgafEHWrPmoUVGSmcD4Ybm+n68I+dPEJfoBXiYLq+55dqmrVwWyO2DN5Wg2yufix/s=", "Authentication-Results": "spf=none (sender IP is )\n\tsmtp.mailfrom=Jerin.Jacob@cavium.com; ", "From": "Jerin Jacob <jerin.jacob@caviumnetworks.com>", "To": "<dev@dpdk.org>", "CC": "<konstantin.ananyev@intel.com>, <thomas.monjalon@6wind.com>,\n\t<bruce.richardson@intel.com>, <jianbo.liu@linaro.org>,\n\t<viktorin@rehivetech.com>, <santosh.shukla@caviumnetworks.com>,\n\tJerin Jacob <jerin.jacob@caviumnetworks.com>", "Date": "Tue, 17 Jan 2017 12:43:36 +0530", "Message-ID": "<1484637244-7548-2-git-send-email-jerin.jacob@caviumnetworks.com>", "X-Mailer": "git-send-email 2.5.5", "In-Reply-To": "<1484637244-7548-1-git-send-email-jerin.jacob@caviumnetworks.com>", "References": "<1484212646-10338-1-git-send-email-jerin.jacob@caviumnetworks.com>\n\t<1484637244-7548-1-git-send-email-jerin.jacob@caviumnetworks.com>", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-Originating-IP": "[111.93.218.67]", "X-ClientProxiedBy": "PN1PR01CA0030.INDPRD01.PROD.OUTLOOK.COM (10.164.137.37) To\n\tBY1PR0701MB1724.namprd07.prod.outlook.com (10.162.111.143)", "X-MS-Office365-Filtering-Correlation-Id": "f69a9689-1f6a-4d9b-34c7-08d43ea883a0", "X-Microsoft-Antispam": "UriScan:; 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PTR:InfoNoRecords; A:1; MX:1; LANG:en; ", "Received-SPF": "None (protection.outlook.com: cavium.com does not designate\n\tpermitted sender hosts)", "SpamDiagnosticOutput": "1:99", "SpamDiagnosticMetadata": "NSPM", "X-OriginatorOrg": "caviumnetworks.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "17 Jan 2017 07:14:42.1171\n\t(UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "BY1PR0701MB1724", "Subject": "[dpdk-dev] [PATCH v4 01/29] eal: introduce I/O device memory\n\tbarriers", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "This commit introduce rte_io_mb(), rte_io_wmb() and rte_io_rmb(), in\norder to enable memory barriers between I/O device and CPU.\n\nSigned-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>\n---\n lib/librte_eal/common/include/generic/rte_atomic.h | 27 ++++++++++++++++++++++\n 1 file changed, 27 insertions(+)", "diff": "diff --git a/lib/librte_eal/common/include/generic/rte_atomic.h b/lib/librte_eal/common/include/generic/rte_atomic.h\nindex 43a704e..7b81705 100644\n--- a/lib/librte_eal/common/include/generic/rte_atomic.h\n+++ b/lib/librte_eal/common/include/generic/rte_atomic.h\n@@ -100,6 +100,33 @@ static inline void rte_smp_wmb(void);\n */\n static inline void rte_smp_rmb(void);\n \n+/**\n+ * General memory barrier for I/O device\n+ *\n+ * Guarantees that the LOAD and STORE operations that precede the\n+ * rte_io_mb() call are visible to I/O device or CPU before the\n+ * LOAD and STORE operations that follow it.\n+ */\n+static inline void rte_io_mb(void);\n+\n+/**\n+ * Write memory barrier for I/O device\n+ *\n+ * Guarantees that the STORE operations that precede the\n+ * rte_io_wmb() call are visible to I/O device before the STORE\n+ * operations that follow it.\n+ */\n+static inline void rte_io_wmb(void);\n+\n+/**\n+ * Read memory barrier for IO device\n+ *\n+ * Guarantees that the LOAD operations on I/O device that precede the\n+ * rte_io_rmb() call are visible to CPU before the LOAD\n+ * operations that follow it.\n+ */\n+static inline void rte_io_rmb(void);\n+\n #endif /* __DOXYGEN__ */\n \n /**\n", "prefixes": [ "dpdk-dev", "v4", "01/29" ] }