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GET /api/patches/137806/?format=api
{ "id": 137806, "url": "http://patches.dpdk.org/api/patches/137806/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20240302135328.531940-7-mattias.ronnblom@ericsson.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": "<20240302135328.531940-7-mattias.ronnblom@ericsson.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20240302135328.531940-7-mattias.ronnblom@ericsson.com", "date": "2024-03-02T13:53:27", "name": "[RFC,6/7] eal: add generic atomic bit operations", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "d12cf630491879f848585dffdb7b941cc8d19baf", "submitter": { "id": 1077, "url": "http://patches.dpdk.org/api/people/1077/?format=api", "name": "Mattias Rönnblom", "email": "mattias.ronnblom@ericsson.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/20240302135328.531940-7-mattias.ronnblom@ericsson.com/mbox/", "series": [ { "id": 31345, "url": "http://patches.dpdk.org/api/series/31345/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=31345", "date": "2024-03-02T13:53:21", "name": "Improve EAL bit operations API", "version": 1, "mbox": "http://patches.dpdk.org/series/31345/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/137806/comments/", "check": "warning", "checks": "http://patches.dpdk.org/api/patches/137806/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 9E8E243C3A;\n\tSat, 2 Mar 2024 15:03:03 +0100 (CET)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 3A34442DD0;\n\tSat, 2 Mar 2024 15:02:25 +0100 (CET)", "from EUR03-DBA-obe.outbound.protection.outlook.com\n (mail-dbaeur03on2050.outbound.protection.outlook.com [40.107.104.50])\n by mails.dpdk.org (Postfix) with ESMTP id 3233442DB1\n for <dev@dpdk.org>; Sat, 2 Mar 2024 15:02:20 +0100 (CET)", "from DU2PR04CA0299.eurprd04.prod.outlook.com (2603:10a6:10:28c::34)\n by PAXPR07MB8354.eurprd07.prod.outlook.com (2603:10a6:102:231::18)\n with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7316.39; Sat, 2 Mar\n 2024 14:02:18 +0000", "from DB1PEPF000509E9.eurprd03.prod.outlook.com\n (2603:10a6:10:28c:cafe::b6) by DU2PR04CA0299.outlook.office365.com\n (2603:10a6:10:28c::34) with Microsoft SMTP Server (version=TLS1_2,\n cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7339.36 via Frontend\n Transport; Sat, 2 Mar 2024 14:02:18 +0000", "from oa.msg.ericsson.com (192.176.1.74) by\n DB1PEPF000509E9.mail.protection.outlook.com (10.167.242.59) with Microsoft\n SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n 15.20.7292.25 via Frontend Transport; Sat, 2 Mar 2024 14:02:18 +0000", "from seliicinfr00050.seli.gic.ericsson.se (153.88.142.248) by\n smtp-central.internal.ericsson.com (100.87.178.67) with Microsoft SMTP Server\n id 15.2.1258.12; Sat, 2 Mar 2024 15:02:17 +0100", "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>, =?utf-8?q?M?=\n\t=?utf-8?q?attias_R=C3=B6nnblom?= <mattias.ronnblom@ericsson.com>", "Subject": "[RFC 6/7] eal: add generic atomic bit operations", "Date": "Sat, 2 Mar 2024 14:53:27 +0100", "Message-ID": "<20240302135328.531940-7-mattias.ronnblom@ericsson.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20240302135328.531940-1-mattias.ronnblom@ericsson.com>", "References": "<20240302135328.531940-1-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": "DB1PEPF000509E9:EE_|PAXPR07MB8354:EE_", "X-MS-Office365-Filtering-Correlation-Id": "813b511e-e7aa-419a-447d-08dc3ac15f73", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "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)(82310400014); DIR:OUT;\n SFP:1101;", "X-OriginatorOrg": "ericsson.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "02 Mar 2024 14:02:18.3475 (UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 813b511e-e7aa-419a-447d-08dc3ac15f73", "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 DB1PEPF000509E9.eurprd03.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "PAXPR07MB8354", "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 atomic bit-level test/set/clear/assign macros operating on both\n32-bit and 64-bit words by means of C11 generic selection.\n\nSigned-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>\n---\n lib/eal/include/rte_bitops.h | 125 +++++++++++++++++++++++++++++++++++\n 1 file changed, 125 insertions(+)", "diff": "diff --git a/lib/eal/include/rte_bitops.h b/lib/eal/include/rte_bitops.h\nindex 7eb08bc768..b5a9df5930 100644\n--- a/lib/eal/include/rte_bitops.h\n+++ b/lib/eal/include/rte_bitops.h\n@@ -290,6 +290,131 @@ extern \"C\" {\n \t\t uint32_t *: rte_bit_once_assign32,\t\t\t\\\n \t\t uint64_t *: rte_bit_once_assign64)(addr, nr, value)\n \n+/**\n+ * Test if a particular bit in a word is set with a particular memory\n+ * order.\n+ *\n+ * Test a bit with the resulting memory load ordered as per the\n+ * specified memory order.\n+ *\n+ * @param addr\n+ * A pointer to the word to query.\n+ * @param nr\n+ * The index of the bit.\n+ * @param memory_order\n+ * The memory order to use. See <rte_stdatomics.h> for details.\n+ * @return\n+ * Returns true if the bit is set, and false otherwise.\n+ */\n+#define rte_bit_atomic_test(addr, nr, memory_order)\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: rte_bit_atomic_test32,\t\t\t\\\n+\t\t uint64_t *: rte_bit_atomic_test64)(addr, nr, memory_order)\n+\n+/**\n+ * Atomically set bit in word.\n+ *\n+ * Atomically set bit specified by @c nr in the word pointed to by @c\n+ * addr to '1', with the memory ordering as specified by @c\n+ * memory_order.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ * @param memory_order\n+ * The memory order to use. See <rte_stdatomics.h> for details.\n+ */\n+#define rte_bit_atomic_set(addr, nr, memory_order)\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: rte_bit_atomic_set32,\t\t\t\\\n+\t\t uint64_t *: rte_bit_atomic_set64)(addr, nr, memory_order)\n+\n+/**\n+ * Atomically clear bit in word.\n+ *\n+ * Atomically set bit specified by @c nr in the word pointed to by @c\n+ * addr to '0', with the memory ordering as specified by @c\n+ * memory_order.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ * @param memory_order\n+ * The memory order to use. See <rte_stdatomics.h> for details.\n+ */\n+#define rte_bit_atomic_clear(addr, nr, memory_order)\t\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: rte_bit_atomic_clear32,\t\t\t\\\n+\t\t uint64_t *: rte_bit_atomic_clear64)(addr, nr, memory_order)\n+\n+/**\n+ * Atomically assign a value to bit in word.\n+ *\n+ * Atomically set bit specified by @c nr in the word pointed to by @c\n+ * addr to the value indicated by @c value, with the memory ordering\n+ * as specified with @c memory_order.\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+ * @param memory_order\n+ * The memory order to use. See <rte_stdatomics.h> for details.\n+ */\n+#define rte_bit_atomic_assign(addr, nr, value, memory_order)\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: rte_bit_atomic_assign32,\t\t\t\\\n+\t\t uint64_t *: rte_bit_atomic_assign64)(addr, nr, value,\t\\\n+\t\t\t\t\t\t memory_order)\n+\n+/**\n+ * Atomically test and set a bit in word.\n+ *\n+ * Atomically test and set bit specified by @c nr in the word pointed\n+ * to by @c addr to '1', with the memory ordering as specified with @c\n+ * memory_order.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ * @param memory_order\n+ * The memory order to use. See <rte_stdatomics.h> for details.\n+ * @return\n+ * Returns true if the bit was set, and false otherwise.\n+ */\n+#define rte_bit_atomic_test_and_set(addr, nr, memory_order)\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: rte_bit_atomic_test_and_set32,\t\t\\\n+\t\t uint64_t *: rte_bit_atomic_test_and_set64)(addr, nr,\t\\\n+\t\t\t\t\t\t\t memory_order))\n+\n+/**\n+ * Atomically test and clear a bit in word.\n+ *\n+ * Atomically test and clear bit specified by @c nr in the word\n+ * pointed to by @c addr to '0', with the memory ordering as specified\n+ * with @c memory_order.\n+ *\n+ * @param addr\n+ * A pointer to the word to modify.\n+ * @param nr\n+ * The index of the bit.\n+ * @param memory_order\n+ * The memory order to use. See <rte_stdatomics.h> for details.\n+ * @return\n+ * Returns true if the bit was set, and false otherwise.\n+ */\n+#define rte_bit_atomic_test_and_clear(addr, nr, memory_order)\t\t\\\n+\t_Generic((addr),\t\t\t\t\t\t\\\n+\t\t uint32_t *: rte_bit_atomic_test_and_clear32,\t\t\\\n+\t\t uint64_t *: rte_bit_atomic_test_and_clear64)(addr, nr, \\\n+\t\t\t\t\t\t\t memory_order))\n+\n /**\n * Test if a particular bit in a 32-bit word is set.\n *\n", "prefixes": [ "RFC", "6/7" ] }