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GET /api/patches/41571/?format=api
{ "id": 41571, "url": "https://patches.dpdk.org/api/patches/41571/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20180626123925.37439-6-yskoh@mellanox.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": "<20180626123925.37439-6-yskoh@mellanox.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20180626123925.37439-6-yskoh@mellanox.com", "date": "2018-06-26T12:39:25", "name": "[v2,5/5] net/mlx5: increase number of strides", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "0741e4120a376bdf497396457af5d72781718455", "submitter": { "id": 636, "url": "https://patches.dpdk.org/api/people/636/?format=api", "name": "Yongseok Koh", "email": "yskoh@mellanox.com" }, "delegate": { "id": 6624, "url": "https://patches.dpdk.org/api/users/6624/?format=api", "username": "shahafs", "first_name": "Shahaf", "last_name": "Shuler", "email": "shahafs@mellanox.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20180626123925.37439-6-yskoh@mellanox.com/mbox/", "series": [ { "id": 242, "url": "https://patches.dpdk.org/api/series/242/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=242", "date": "2018-06-26T12:39:20", "name": "net/mlx5: support new completion field for Multi-Packet RQ", "version": 2, "mbox": "https://patches.dpdk.org/series/242/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/41571/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/41571/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 075C81B5A9;\n\tTue, 26 Jun 2018 14:40:13 +0200 (CEST)", "from EUR04-HE1-obe.outbound.protection.outlook.com\n\t(mail-eopbgr70057.outbound.protection.outlook.com [40.107.7.57])\n\tby dpdk.org (Postfix) with ESMTP id 2E25C1B583\n\tfor <dev@dpdk.org>; Tue, 26 Jun 2018 14:40:04 +0200 (CEST)", "from mellanox.com (209.116.155.178) by\n\tHE1PR0501MB2043.eurprd05.prod.outlook.com (2603:10a6:3:35::21) with\n\tMicrosoft SMTP Server (version=TLS1_2,\n\tcipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n\t15.20.884.23; Tue, 26 Jun 2018 12:40:00 +0000" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com;\n\ts=selector1;\n\th=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n\tbh=xm07UqVgNkU45SrT92AfkJvKxiwArv8X4DYHHsUj364=;\n\tb=aJ/qvWEoC0BWxcVEIRUwaQAyh0HyAsQSvRfs+6HTKbWprB07SYtAwy0JGcmAtdHDpUP94sRz2dMG5mnO74aOUW0kAnlqGTNce0lZtg8HUFIh9/4Ft6srcT7h6f+iWzjKUPhnkFO5t/m1RbIEx181D2ue2VSew3pC5MiRCJ3dFZo=", "Authentication-Results": "spf=none (sender IP is )\n\tsmtp.mailfrom=yskoh@mellanox.com; ", "From": "Yongseok Koh <yskoh@mellanox.com>", "To": "adrien.mazarguil@6wind.com,\n\tnelio.laranjeiro@6wind.com", "Cc": "dev@dpdk.org,\n\tshahafs@mellanox.com,\n\tYongseok Koh <yskoh@mellanox.com>", "Date": "Tue, 26 Jun 2018 05:39:25 -0700", "Message-Id": "<20180626123925.37439-6-yskoh@mellanox.com>", "X-Mailer": "git-send-email 2.11.0", "In-Reply-To": "<20180626123925.37439-1-yskoh@mellanox.com>", "References": "<20180626123925.37439-1-yskoh@mellanox.com>", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-Originating-IP": "[209.116.155.178]", "X-ClientProxiedBy": "CO1PR15CA0100.namprd15.prod.outlook.com\n\t(2603:10b6:101:21::20) To HE1PR0501MB2043.eurprd05.prod.outlook.com\n\t(2603:10a6:3:35::21)", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "018abe8e-a05e-43cc-65db-08d5db61efb6", "X-MS-Office365-Filtering-HT": "Tenant", "X-Microsoft-Antispam": "UriScan:; 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SFP:1101; SCL:1; SRVR:HE1PR0501MB2043; H:mellanox.com; FPR:;\n\tSPF:None; \n\tLANG:en; PTR:InfoNoRecords; MX:1; A:1; ", "Received-SPF": "None (protection.outlook.com: mellanox.com does not designate\n\tpermitted sender hosts)", "X-Microsoft-Antispam-Message-Info": "AtqaX+7+8FsZqJMuiH0cr0uFXOkiHKGsEzAgE86uz4uQsxWF1gx9l24tgzpZJebvx7b/yccczMRETMebfnBKRkKV+6hp0yHGDkbadYQK7sACQZrvNcv87bEwKpVPoqi9mrZggFAjdkUkDyvbqUZWLZraRoY4luvN+HQQTapMCDobp9eIBTyhyHQwDlPkLWAQcj4QvJYEak23MnC4+JMQb3uvLsYZZyYHhfUkCte9r+vXFupCIvmQgCQnOXdeEpQlxy39KwJVkA7JtR7fIltp7NQbVvBSqGpgdnW/GaoKxxWd3yXm+3Zt/GbDIQAmBSZuJskiowhTHjfyqMEU12O3jWqGlEZ0PvCDlTlOFiNXl3A=", "SpamDiagnosticOutput": "1:99", "SpamDiagnosticMetadata": "NSPM", "X-OriginatorOrg": "Mellanox.com", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "26 Jun 2018 12:40:00.8748\n\t(UTC)", "X-MS-Exchange-CrossTenant-Network-Message-Id": "018abe8e-a05e-43cc-65db-08d5db61efb6", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "a652971c-7d2e-4d9b-a6a4-d149256f461b", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "HE1PR0501MB2043", "Subject": "[dpdk-dev] [PATCH v2 5/5] net/mlx5: increase number of strides", "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": "If WQE ID is used in CQE for Multi-Packet RQ, the ratio of CQE compression\ndrops a little bit. In order to reach to 100Gbps with 64B traffic, it is\nneeded to further save PCIe bandwidth by increasing the number of strides\nin a WQE. It is now 64 by default but adjustable by a PMD parameter -\nmprq_log_stride_num.\n\nSigned-off-by: Yongseok Koh <yskoh@mellanox.com>\nAcked-by: Shahaf Shuler <shahafs@mellanox.com>\n---\n drivers/net/mlx5/mlx5_defs.h | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)", "diff": "diff --git a/drivers/net/mlx5/mlx5_defs.h b/drivers/net/mlx5/mlx5_defs.h\nindex 51124cdcc..79bb23d2a 100644\n--- a/drivers/net/mlx5/mlx5_defs.h\n+++ b/drivers/net/mlx5/mlx5_defs.h\n@@ -96,7 +96,7 @@\n #define MLX5_UAR_OFFSET (1ULL << 32)\n \n /* Log 2 of the default number of strides per WQE for Multi-Packet RQ. */\n-#define MLX5_MPRQ_STRIDE_NUM_N 4U\n+#define MLX5_MPRQ_STRIDE_NUM_N 6U\n \n /* Two-byte shift is disabled for Multi-Packet RQ. */\n #define MLX5_MPRQ_TWO_BYTE_SHIFT 0\n", "prefixes": [ "v2", "5/5" ] }