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GET /api/patches/139676/?format=api
{ "id": 139676, "url": "http://patchwork.dpdk.org/api/patches/139676/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20240425085853.97888-2-mattias.ronnblom@ericsson.com/", "project": { "id": 1, "url": "http://patchwork.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": "<20240425085853.97888-2-mattias.ronnblom@ericsson.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20240425085853.97888-2-mattias.ronnblom@ericsson.com", "date": "2024-04-25T08:58:48", "name": "[RFC,v2,1/6] eal: extend bit manipulation functionality", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "e9e99efbe66b38c70582f367466bd5cae885b3d1", "submitter": { "id": 1077, "url": "http://patchwork.dpdk.org/api/people/1077/?format=api", "name": "Mattias Rönnblom", "email": "mattias.ronnblom@ericsson.com" }, "delegate": { "id": 1, "url": "http://patchwork.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20240425085853.97888-2-mattias.ronnblom@ericsson.com/mbox/", "series": [ { "id": 31818, "url": "http://patchwork.dpdk.org/api/series/31818/?format=api", "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=31818", "date": "2024-04-25T08:58:47", "name": "Improve EAL bit operations API", "version": 2, "mbox": "http://patchwork.dpdk.org/series/31818/mbox/" } ], "comments": "http://patchwork.dpdk.org/api/patches/139676/comments/", "check": "pending", "checks": "http://patchwork.dpdk.org/api/patches/139676/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 3A98843F04;\n\tThu, 25 Apr 2024 11:10:29 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id C951E436D7;\n\tThu, 25 Apr 2024 11:10:06 +0200 (CEST)", "from EUR01-VE1-obe.outbound.protection.outlook.com\n (mail-ve1eur01on2053.outbound.protection.outlook.com [40.107.14.53])\n by mails.dpdk.org (Postfix) with ESMTP id 14E2B436CA\n for <dev@dpdk.org>; Thu, 25 Apr 2024 11:10:02 +0200 (CEST)", "from AM7PR02CA0011.eurprd02.prod.outlook.com (2603:10a6:20b:100::21)\n by AM8PR07MB8041.eurprd07.prod.outlook.com (2603:10a6:20b:3d8::19)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7519.22; Thu, 25 Apr\n 2024 09:09:57 +0000", "from AM3PEPF0000A793.eurprd04.prod.outlook.com\n (2603:10a6:20b:100:cafe::26) by AM7PR02CA0011.outlook.office365.com\n (2603:10a6:20b:100::21) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7452.29 via Frontend\n Transport; Thu, 25 Apr 2024 09:09:57 +0000", "from oa.msg.ericsson.com (192.176.1.74) by\n AM3PEPF0000A793.mail.protection.outlook.com (10.167.16.122) with Microsoft\n SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.20.7519.19 via Frontend Transport; Thu, 25 Apr 2024 09:09:57 +0000", "from seliicinfr00050.seli.gic.ericsson.se (153.88.142.248) by\n smtp-central.internal.ericsson.com (100.87.178.61) with Microsoft SMTP Server\n id 15.2.1258.12; Thu, 25 Apr 2024 11:09:55 +0200", "from breslau.. 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helo=oa.msg.ericsson.com; pr=C", "From": "=?utf-8?q?Mattias_R=C3=B6nnblom?= <mattias.ronnblom@ericsson.com>", "To": "<dev@dpdk.org>", "CC": "<hofors@lysator.liu.se>, Heng Wang <heng.wang@ericsson.com>,\n \"Stephen Hemminger\" <stephen@networkplumber.org>,\n Tyler Retzlaff <roretzla@linux.microsoft.com>, =?utf-8?q?Mattias_R=C3=B6nnb?=\n\t=?utf-8?q?lom?= <mattias.ronnblom@ericsson.com>", "Subject": "[RFC v2 1/6] eal: extend bit manipulation functionality", "Date": "Thu, 25 Apr 2024 10:58:48 +0200", "Message-ID": "<20240425085853.97888-2-mattias.ronnblom@ericsson.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20240425085853.97888-1-mattias.ronnblom@ericsson.com>", "References": "<20240302135328.531940-2-mattias.ronnblom@ericsson.com>\n <20240425085853.97888-1-mattias.ronnblom@ericsson.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"UTF-8\"", "Content-Transfer-Encoding": "8bit", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "AM3PEPF0000A793:EE_|AM8PR07MB8041:EE_", "X-MS-Office365-Filtering-Correlation-Id": "748ad0e0-6a8f-4c10-8c36-08dc65077a8c", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230031|376005|36860700004|1800799015|82310400014;", "X-Microsoft-Antispam-Message-Info": "=?utf-8?q?PfLu+INMSSy8XL5V4LOxvz9uLVhtMrc?=\n\t=?utf-8?q?dDREtVGeTit2FJa7VmMvCSybj4aJDOWni7Jh1uDZYYwGP5MoQxAuRdTwjasQVdSpD?=\n\t=?utf-8?q?Kzyn/h8TH+HCiFCd6a7seTPBVz/l8zP96UsPGIoi5E/2Dp25lgtAHnCR9mZ9uxTmd?=\n\t=?utf-8?q?A09TrzbXCLkgDCPJGLrl3ljRMYb7AR4fS+vxNUYLctZmoiYMMsrVUnFdp4rsX3h0v?=\n\t=?utf-8?q?4y4f/epoNLk8QoKyLEsschaYTVVKS5Rz6mVokiWU96GHKBCFjgoYsoRnQisaCOFXA?=\n\t=?utf-8?q?UoAck8sQn8yfwqIgudsbjlxlNRVWym692tWVOgC/WJlaVlDzjymE1EC3+A8i7Awf8?=\n\t=?utf-8?q?yUDnCvNNMLctBHZtuW9bxiuJSGt8JRHI7pLSC+JyvuQFWlht7DUFo4+FZwjH1a6CV?=\n\t=?utf-8?q?nnpzI7mITDfkjROZCQyc6ZTu/4lcnpHELVqsz+3ROj2KCtFbqDL9tROoclZdbyHhz?=\n\t=?utf-8?q?bJFbLqYiMs2omWR3tPkUF0iknwKnvVrY2S327jvqkbTzcFacfONxAtThVlCBb4iKz?=\n\t=?utf-8?q?xcCXCSRm73PezugTjETqmqfub6nwSX9qm2DXmTYXvpryXmCdQ6dDrpiTFbWtb7Q+a?=\n\t=?utf-8?q?+vHRR60TmwhN9ZVQtOUXanPgaks+hnqDy+bZ/hUwNtPiGgcxIEPl84c0IioKiyfm0?=\n\t=?utf-8?q?IpstNXwaAuE+ZBWXcw1gv52LjM9Z9XeTsIOzUycl6ci+oimN09wA6zFhFUS31tQ2/?=\n\t=?utf-8?q?0mj2qW5JARHQlqR9do/z0Q0Xb0l2g4vHJDQckHfh6H0QQAR/DAIF2IQCwrWsGx5wJ?=\n\t=?utf-8?q?kbZgD/6CrUyTKfEQG83tdfcFUb35pTPYDtZ2mMO2m/RvBqbvgG5hRBqUgtIGWl4l8?=\n\t=?utf-8?q?YHVONEF8/KTzBuyJ/horuYEG/k16xSoCxod1YZdPmeVh/1nluqdWU+gT8IgRSPfF9?=\n\t=?utf-8?q?IzJHRqshaM4uKOCCyO6Ee5xDBhtfwXGUI1yUMaLkBAyWboVx9G9bvx8pkeBIXW3HH?=\n\t=?utf-8?q?p/M4iBILJXrmbSpVUPNOluFByf0yLDJv0JrH6PLHk9lCrD7P2QjgpaAIUkd9K/OHS?=\n\t=?utf-8?q?4wG97H4HPbBW+qovc5G8OBGQxXBEEpATPnknRAJKhni9ZjHLS8v/6rg7e+BllshSK?=\n\t=?utf-8?q?y0z0ZTewnOKERCSHn0ktTZ+esDDbYQlmkqZnh3PDQQT9oOIRdxJ+pYOaGsFmMPtUW?=\n\t=?utf-8?q?dygRsD6n94m+DHWQs0blJ0N318XAHTXQUQkduOWH0f1KBtjtNnLdxDtqM/D1n7Du8?=\n\t=?utf-8?q?cP23SOPwKKdZWWND+Ib2WN/1HDOSvdJklDyRtqiDjeCkY0Y/No2xaP5NKwJNg6ia7?=\n\t=?utf-8?q?ngq+R09Zhukr2vRqoEjY95k3AB/qUYaR5sSp1Lapsb+lQ08nJkE+yJE2lIfX+qK9i?=\n\t=?utf-8?q?LscufQS4EaGD?=", "X-Forefront-Antispam-Report": "CIP:192.176.1.74; CTRY:SE; LANG:en; SCL:1; SRV:;\n IPV:NLI; SFV:NSPM; H:oa.msg.ericsson.com; PTR:office365.se.ericsson.net;\n CAT:NONE; SFS:(13230031)(376005)(36860700004)(1800799015)(82310400014);\n DIR:OUT; SFP:1101;", "X-OriginatorOrg": "ericsson.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "25 Apr 2024 09:09:57.4350 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 748ad0e0-6a8f-4c10-8c36-08dc65077a8c", "X-MS-Exchange-CrossTenant-Id": "92e84ceb-fbfd-47ab-be52-080c6b87953f", "X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp": "\n TenantId=92e84ceb-fbfd-47ab-be52-080c6b87953f; Ip=[192.176.1.74];\n Helo=[oa.msg.ericsson.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n AM3PEPF0000A793.eurprd04.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "AM8PR07MB8041", "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" }, "content": "Add functionality to test, set, clear, and assign the value to\nindividual bits in 32-bit or 64-bit words.\n\nThese functions have no implications on memory ordering, atomicity and\ndoes not use volatile and thus does not prevent any compiler\noptimizations.\n\nSigned-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>\n---\n lib/eal/include/rte_bitops.h | 158 ++++++++++++++++++++++++++++++++++-\n 1 file changed, 156 insertions(+), 2 deletions(-)", "diff": "diff --git a/lib/eal/include/rte_bitops.h b/lib/eal/include/rte_bitops.h\nindex 449565eeae..75a29fdfe0 100644\n--- a/lib/eal/include/rte_bitops.h\n+++ b/lib/eal/include/rte_bitops.h\n@@ -2,6 +2,7 @@\n * Copyright(c) 2020 Arm Limited\n * Copyright(c) 2010-2019 Intel Corporation\n * Copyright(c) 2023 Microsoft Corporation\n+ * Copyright(c) 2024 Ericsson AB\n */\n \n #ifndef _RTE_BITOPS_H_\n@@ -11,12 +12,14 @@\n * @file\n * Bit Operations\n *\n- * This file defines a family of APIs for bit operations\n- * without enforcing memory ordering.\n+ * This file provides functionality for low-level, single-word\n+ * arithmetic and bit-level operations, such as counting or\n+ * setting individual bits.\n */\n \n #include <stdint.h>\n \n+#include <rte_compat.h>\n #include <rte_debug.h>\n \n #ifdef __cplusplus\n@@ -105,6 +108,157 @@ extern \"C\" {\n #define RTE_FIELD_GET64(mask, reg) \\\n \t\t((typeof(mask))(((reg) & (mask)) >> rte_ctz64(mask)))\n \n+/**\n+ * @warning\n+ * @b EXPERIMENTAL: this API may change without prior notice.\n+ *\n+ * Test bit in word.\n+ *\n+ * Generic selection macro to test the value of a bit in a 32-bit or\n+ * 64-bit word. The type of operation depends on the type of the @c\n+ * addr parameter.\n+ *\n+ * This macro does not give any guarantees in regards to memory\n+ * ordering or atomicity.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ */\n+#define rte_bit_test(addr, nr)\t\t\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\\\n+\t\t uint32_t *: __rte_bit_test32,\t\t\t\\\n+\t\t uint64_t *: __rte_bit_test64)(addr, nr)\n+\n+/**\n+ * @warning\n+ * @b EXPERIMENTAL: this API may change without prior notice.\n+ *\n+ * Set bit in word.\n+ *\n+ * Generic selection macro to set a bit in a 32-bit or 64-bit\n+ * word. The type of operation depends on the type of the @c addr\n+ * parameter.\n+ *\n+ * This macro does not give any guarantees in regards to memory\n+ * ordering or atomicity.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ */\n+#define rte_bit_set(addr, nr)\t\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\\\n+\t\t uint32_t *: __rte_bit_set32,\t\t\\\n+\t\t uint64_t *: __rte_bit_set64)(addr, nr)\n+\n+/**\n+ * @warning\n+ * @b EXPERIMENTAL: this API may change without prior notice.\n+ *\n+ * Clear bit in word.\n+ *\n+ * Generic selection macro to clear a bit in a 32-bit or 64-bit\n+ * word. The type of operation depends on the type of the @c addr\n+ * parameter.\n+ *\n+ * This macro does not give any guarantees in regards to memory\n+ * ordering or atomicity.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ */\n+#define rte_bit_clear(addr, nr)\t\t\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\\\n+\t\t uint32_t *: __rte_bit_clear32,\t\t\t\\\n+\t\t uint64_t *: __rte_bit_clear64)(addr, nr)\n+\n+/**\n+ * @warning\n+ * @b EXPERIMENTAL: this API may change without prior notice.\n+ *\n+ * Assign a value to a bit in word.\n+ *\n+ * Generic selection macro to assign a value to a bit in a 32-bit or 64-bit\n+ * word. The type of operation depends on the type of the @c addr parameter.\n+ *\n+ * This macro does not give any guarantees in regards to memory\n+ * ordering or atomicity.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ * @param value\n+ * The new value of the bit - true for '1', or false for '0'.\n+ */\n+#define rte_bit_assign(addr, nr, value)\t\t\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: __rte_bit_assign32,\t\t\t\\\n+\t\t uint64_t *: __rte_bit_assign64)(addr, nr, value)\n+\n+#define __RTE_GEN_BIT_TEST(name, size, qualifier)\t\t\t\\\n+\tstatic inline bool\t\t\t\t\t\t\\\n+\tname(const qualifier uint ## size ## _t *addr, unsigned int nr)\t\\\n+\t{\t\t\t\t\t\t\t\t\\\n+\t\tRTE_ASSERT(nr < size);\t\t\t\t\t\\\n+\t\t\t\t\t\t\t\t\t\\\n+\t\tuint ## size ## _t mask = (uint ## size ## _t)1 << nr;\t\\\n+\t\treturn *addr & mask;\t\t\t\t\t\\\n+\t}\n+\n+#define __RTE_GEN_BIT_SET(name, size, qualifier)\t\t\t\\\n+\tstatic inline void\t\t\t\t\t\t\\\n+\tname(qualifier uint ## size ## _t *addr, unsigned int nr)\t\\\n+\t{\t\t\t\t\t\t\t\t\\\n+\t\tRTE_ASSERT(nr < size);\t\t\t\t\t\\\n+\t\t\t\t\t\t\t\t\t\\\n+\t\tuint ## size ## _t mask = (uint ## size ## _t)1 << nr;\t\\\n+\t\t*addr |= mask;\t\t\t\t\t\t\\\n+\t}\t\t\t\t\t\t\t\t\\\n+\n+#define __RTE_GEN_BIT_CLEAR(name, size, qualifier)\t\t\t\\\n+\tstatic inline void\t\t\t\t\t\t\\\n+\tname(qualifier uint ## size ## _t *addr, unsigned int nr)\t\\\n+\t{\t\t\t\t\t\t\t\t\\\n+\t\tRTE_ASSERT(nr < size);\t\t\t\t\t\\\n+\t\t\t\t\t\t\t\t\t\\\n+\t\tuint ## size ## _t mask = ~((uint ## size ## _t)1 << nr); \\\n+\t\t(*addr) &= mask;\t\t\t\t\t\\\n+\t}\t\t\t\t\t\t\t\t\\\n+\n+__RTE_GEN_BIT_TEST(__rte_bit_test32, 32,)\n+__RTE_GEN_BIT_SET(__rte_bit_set32, 32,)\n+__RTE_GEN_BIT_CLEAR(__rte_bit_clear32, 32,)\n+\n+__RTE_GEN_BIT_TEST(__rte_bit_test64, 64,)\n+__RTE_GEN_BIT_SET(__rte_bit_set64, 64,)\n+__RTE_GEN_BIT_CLEAR(__rte_bit_clear64, 64,)\n+\n+__rte_experimental\n+static inline void\n+__rte_bit_assign32(uint32_t *addr, unsigned int nr, bool value)\n+{\n+\tif (value)\n+\t\t__rte_bit_set32(addr, nr);\n+\telse\n+\t\t__rte_bit_clear32(addr, nr);\n+}\n+\n+__rte_experimental\n+static inline void\n+__rte_bit_assign64(uint64_t *addr, unsigned int nr, bool value)\n+{\n+\tif (value)\n+\t\t__rte_bit_set64(addr, nr);\n+\telse\n+\t\t__rte_bit_clear64(addr, nr);\n+}\n+\n /*------------------------ 32-bit relaxed operations ------------------------*/\n \n /**\n", "prefixes": [ "RFC", "v2", "1/6" ] }