From nobody Mon Feb 9 01:06:27 2026 Delivered-To: wpasupplicant.patchew@gmail.com Received: by 2002:a05:6a06:1788:b0:4ac:5e5b:1ad1 with SMTP id y8csp764597piq; Tue, 29 Mar 2022 00:10:25 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwz+kwaX/rNL8u/zpzpnQ3c8gWZvjfOEqixzF4G8vGo8tmdggfzY4nbzYabBtaa7ozJxYWw X-Received: by 2002:a05:6a00:849:b0:4fb:1112:c19f with SMTP id q9-20020a056a00084900b004fb1112c19fmr19894993pfk.74.1648537825397; Tue, 29 Mar 2022 00:10:25 -0700 (PDT) Return-Path: Received: from sjc.edge.kernel.org (sjc.edge.kernel.org. [2604:1380:1000:8100::1]) by mx.google.com with ESMTPS id u2-20020a632342000000b003863116c04csi16143623pgm.192.2022.03.29.00.10.25 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 29 Mar 2022 00:10:25 -0700 (PDT) Received-SPF: pass (google.com: domain of mptcp+bounces-4517-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1000:8100::1 as permitted sender) client-ip=2604:1380:1000:8100::1; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.com header.s=mimecast20200619 header.b="M4Y/zMpY"; arc=fail (body hash mismatch); spf=pass (google.com: domain of mptcp+bounces-4517-wpasupplicant.patchew=gmail.com@lists.linux.dev designates 2604:1380:1000:8100::1 as permitted sender) smtp.mailfrom="mptcp+bounces-4517-wpasupplicant.patchew=gmail.com@lists.linux.dev"; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=suse.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sjc.edge.kernel.org (Postfix) with ESMTPS id 0E4953E0EA1 for ; Tue, 29 Mar 2022 07:10:25 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 2BBC02103; Tue, 29 Mar 2022 07:10:24 +0000 (UTC) X-Original-To: mptcp@lists.linux.dev Received: from de-smtp-delivery-102.mimecast.com (de-smtp-delivery-102.mimecast.com [194.104.109.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 435F420FF for ; Tue, 29 Mar 2022 07:10:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=mimecast20200619; t=1648537820; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DwQo84Ioi3cWP7i56o3JEn1BeyJtDLKugLYuEqOUkFQ=; b=M4Y/zMpYEVQsLiq4/eDxEvYaUs3b+gysH2E4uQOVJ8Ye8MQYswXCzHergNhwIjzFi9XupD P5ADJOALMjneyWzWvH4MlAA4vapd578eHJMWKEx2KKgm+r/hRvPPitUSCDWQlDaUkrHMsc 5Q5y5MIzV6PRjC2TD65sHNl5lOVM8k0= Received: from EUR05-VI1-obe.outbound.protection.outlook.com (mail-vi1eur05lp2177.outbound.protection.outlook.com [104.47.17.177]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id de-mta-23-XaucOW8cMdCCGGgXQeJG0Q-1; Tue, 29 Mar 2022 09:10:19 +0200 X-MC-Unique: XaucOW8cMdCCGGgXQeJG0Q-1 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=RdoXi5Up9C+PXi/0z/is7hn2AfdYVJhRHukYv22vin3er4UxXzaaJmk3aDfXkAThzZOqCN23VXl+92pnWuwV7CntSG3vctcd6GZyUlLV4aVh00QQmuSdpUJVOMfCXlmARvx1ddOGoP3gmQ0UCm8HkcGhF08zci3OoZ5Xkto5YsbIdWCdTks0QLnqTafdR+vkLTFL2VGFXyE5tWbNEEQISlfb7CNxZePoKHhIkDEigsZMrfRDOlxQZI638YPa1QJ0YuARN61ijMeJ+d4GebamWPilIVMSPSV0bjU0BCYCGtMEpIZpEPs01eLGU5aN9rfeQ9/sPS5H0oXydqH0L0lzLg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=N4KNt07m/ibxXdhnDHr1bnpr/qhcffA4QQpMG1/5N6s=; b=VM4O2DVDaPle2C4P/+nKo7FG5ql6B+4ODwMrF98BVa8/OFfCUjtnJIh8/KzlCW9mJWmBma8kJkd2NvXNNAdEUWrnc3XtqL7auBipWLxFpRtlpMQx3lKJ0EivRfmkyR8PCWY6o+4dF4zt+ZCZUWgnm5b+n3oUS4ZTdcfRBpb8GFWRlN2dlV2IPo1ZK7JfXlpPJgWlyxwcqlAFWCM8syVJ04s4vkv1xfAfLwN+AZ30QS8EMQkY7hFtEek/VMDASUpslQAp315WzX2kLLMrT1eVrQfjDgOeCzfDbr3XVz1GaMdrHq3fqD392Q+N6fWjjLkn0ZRoFMZiAb4bJwTiYO3Vkw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=suse.com; dmarc=pass action=none header.from=suse.com; dkim=pass header.d=suse.com; arc=none Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=suse.com; Received: from HE1PR0402MB3497.eurprd04.prod.outlook.com (2603:10a6:7:83::14) by VE1PR04MB6735.eurprd04.prod.outlook.com (2603:10a6:803:124::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5102.22; Tue, 29 Mar 2022 07:10:18 +0000 Received: from HE1PR0402MB3497.eurprd04.prod.outlook.com ([fe80::b110:cb51:e09f:bb05]) by HE1PR0402MB3497.eurprd04.prod.outlook.com ([fe80::b110:cb51:e09f:bb05%6]) with mapi id 15.20.5102.023; Tue, 29 Mar 2022 07:10:18 +0000 From: Geliang Tang To: mptcp@lists.linux.dev CC: fw@strlen.de, Geliang Tang Subject: [PATCH mptcp-next v8 7/8] selftests: bpf: add bpf_first scheduler Date: Tue, 29 Mar 2022 15:09:26 +0800 Message-ID: <7643e229a68ece9ec5928fb1ab3c50e33e10d6a6.1648537203.git.geliang.tang@suse.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: HK0PR03CA0102.apcprd03.prod.outlook.com (2603:1096:203:b0::18) To HE1PR0402MB3497.eurprd04.prod.outlook.com (2603:10a6:7:83::14) Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 69e4c19a-ad96-49c5-2c24-08da11532e00 X-MS-TrafficTypeDiagnostic: VE1PR04MB6735:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:HE1PR0402MB3497.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(366004)(6506007)(6666004)(6916009)(86362001)(8936002)(8676002)(4326008)(36756003)(2906002)(6486002)(508600001)(316002)(2616005)(66556008)(6512007)(66946007)(66476007)(44832011)(107886003)(26005)(5660300002)(186003)(38100700002)(13296009);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?hojpgWGux7YVBbMwN155OYKS/k+Ql2CNFbXIX6JDq1jI85f9+r8Wri+xe53c?= =?us-ascii?Q?Jn3TxL5ihOHRcwZHYb244fgHaGFKdG3tkUhAkNicV8iKz3pfbmkBgeDEJZy3?= =?us-ascii?Q?utQRwkEagmahf5LbBasItBBDyqirbKKHPrveO8urEPQz1+VZ54EA0G9esg9f?= =?us-ascii?Q?7hMGQyuZeCqLVlkiLOjZM9P9Z1ZKNeWDp2DJtp+wxzYNli+3vYkXFd2NCfYl?= =?us-ascii?Q?DB8CFGebgInE7cPCbS/AbR8IXGIu/v/isHGE7uiQd32q6yELVnsI9F5gEiJK?= =?us-ascii?Q?S2egwEsktNY/6tCFoLTlZAEyfLOySeqm9UDvGPMPfsGt+/rNeYb8hcd6ICxO?= =?us-ascii?Q?BvZY6CSRuq7vv1lgbbeCL8AN9RNlqjDoD3WOuVtqTKPl7372N5+Akq6xLhlA?= =?us-ascii?Q?7qCOlSUkcCkO7YwAijixd9eoi0gSqGr81ZyH9dmvotuzbqJorZW7jj/ycHCw?= =?us-ascii?Q?vowmcU7PFvbt1P1rp3Eey8O5JzxRSjUMRjFprq9ZURDzqxYhlqPo5l/sKghr?= =?us-ascii?Q?t/BCP1I7++1vSQvBNwVTGD/MkMzQ7aif63CaiCkznO9RtdcQrQD/qHYFfJlD?= =?us-ascii?Q?uoApRWvBSk1yhsfhA58SuUosmuN6nz+BiAiadd2ikZEjGV2Nh/EW75FjH7QC?= =?us-ascii?Q?daKR+vVMSxqrbU2YbCeY6r5ESxx/jxxSjwXrL2F/dIfJdv8zzgnPGeLmrxPO?= =?us-ascii?Q?OeY2zC4sMGgpe01ry1vOnUDjwkK+EykieSgSPrVnZ6UTblo4kYDgcseR+pge?= =?us-ascii?Q?XYzNMOX/9ifzyM25YsBoK56u2sTTfcsXbh8CYTpr5JjfP0Rt8TUvBPoNer38?= =?us-ascii?Q?RQ4VAfq7xq3UfFCcFrVZKQoWWJy7Lm2B6YhBxSMbr06kbfblnsa2POrDXoid?= =?us-ascii?Q?XOIxPOMP3Htxa5z49uHc9RSGW5lwAJluHAhlj5PZAbXmRu6/r779cGrtKy0D?= =?us-ascii?Q?lL/xFxCrgLcU0r1LDW1UCitdX6oThit2dQ2Wo8Qp87jbfvyR3xqb86AM6ozg?= =?us-ascii?Q?IUbFAIwEypAf1yqaNTgyi5f8EFsfB7iGPnw4g6OUYVUH+yti0ZyqFPlMfquS?= =?us-ascii?Q?0EmcsWSjQf32LXnz4UsX6A4RgMrb4T+//ocpBXikvw9EXjtha85w8W28k20b?= =?us-ascii?Q?ce+Wb9/gIfuR76ks5+vGVhr35p2Ea0ja4RoRpqer7wxKOMvPK5QYgi83ONbU?= =?us-ascii?Q?3FS3DnznifLUAxp5Cv+RzMIRtml/cV7IBWgnNm17c28rAz3aUtdtHGCutjSr?= =?us-ascii?Q?JDCvx97bXKHgY5NSf8NA0ugUP8j7mBdCUP8o1ITuWe0zCHkUOPzzdISOpUGP?= =?us-ascii?Q?9rTpYH8NvSe1wVHwMtNYmVQ4xcPU5ip8/QZfJgFa4wP+6dnJJ2RY31MddkIG?= =?us-ascii?Q?jTLe130ohAqDAm2ctPpSOPRzo+LX3usfnllH8k162yr4WrGS/b21A0PoqKSF?= =?us-ascii?Q?4UXugjhPNuTUi93RZcKh1V0uTxuwZTjHfWx9K0O4Dl6/23bFfJflv7NapKy6?= =?us-ascii?Q?Ruo8q8IEx0BLHWOYYY9iWwl5BQ3N4zrx0joZXPUCHhocfsDpLs8IhRpoAyJw?= =?us-ascii?Q?Gqyv2OmJdhVTnjIb+k8sMbTHjxwp6Bpn2ZWwOFh4SF6RRRIDbhw/bLMc7QxO?= =?us-ascii?Q?jeCjCLdeHP2y3LyFg1VEn+RHQDBTOWN5gpGC9PRZG1JkpYjX9rDmhxMUf8Vx?= =?us-ascii?Q?0ZdzXybi/qiCpdzJnLcpNG2t1Jx0nJCaeZDTdpQf3MvLbS62jjoNYMqzkHo0?= =?us-ascii?Q?m93k4YDkfbvUxFRB1FwiMO0P1ZLUExE=3D?= X-OriginatorOrg: suse.com X-MS-Exchange-CrossTenant-Network-Message-Id: 69e4c19a-ad96-49c5-2c24-08da11532e00 X-MS-Exchange-CrossTenant-AuthSource: HE1PR0402MB3497.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 29 Mar 2022 07:10:18.1036 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: f7a17af6-1c5c-4a36-aa8b-f5be247aa4ba X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: nTTFGNRc07MHsuc8fKoYu9IMLOJvDm/qR81GrSeYFomB17bg9LZfJMnjo5P7tVQaI5FFD2TQ/KEvuONnhwehpw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6735 Content-Type: text/plain; charset="utf-8" This patch implements the simplest MPTCP scheduler, named bpf_first, which always picks the first subflow to send data. It's a sample of MPTCP BPF scheduler implementations. Signed-off-by: Geliang Tang --- tools/testing/selftests/bpf/bpf_tcp_helpers.h | 12 ++++++++ .../selftests/bpf/progs/mptcp_bpf_first.c | 30 +++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 tools/testing/selftests/bpf/progs/mptcp_bpf_first.c diff --git a/tools/testing/selftests/bpf/bpf_tcp_helpers.h b/tools/testing/= selftests/bpf/bpf_tcp_helpers.h index f92357597e63..5bb21b24231f 100644 --- a/tools/testing/selftests/bpf/bpf_tcp_helpers.h +++ b/tools/testing/selftests/bpf/bpf_tcp_helpers.h @@ -197,6 +197,18 @@ struct tcp_congestion_ops { void *owner; }; =20 +#define MPTCP_SCHED_NAME_MAX 16 + +struct mptcp_sched_ops { + char name[MPTCP_SCHED_NAME_MAX]; + + void (*init)(struct mptcp_sock *msk); + void (*release)(struct mptcp_sock *msk); + + struct sock * (*get_subflow)(struct mptcp_sock *msk); + void *owner; +}; + #define min(a, b) ((a) < (b) ? (a) : (b)) #define max(a, b) ((a) > (b) ? (a) : (b)) #define min_not_zero(x, y) ({ \ diff --git a/tools/testing/selftests/bpf/progs/mptcp_bpf_first.c b/tools/te= sting/selftests/bpf/progs/mptcp_bpf_first.c new file mode 100644 index 000000000000..3ae5c1eab5f5 --- /dev/null +++ b/tools/testing/selftests/bpf/progs/mptcp_bpf_first.c @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2022, SUSE. */ + +#include +#include "bpf_tcp_helpers.h" + +char _license[] SEC("license") =3D "GPL"; + +SEC("struct_ops/mptcp_sched_first_init") +void BPF_PROG(mptcp_sched_first_init, struct mptcp_sock *msk) +{ +} + +SEC("struct_ops/mptcp_sched_first_release") +void BPF_PROG(mptcp_sched_first_release, struct mptcp_sock *msk) +{ +} + +struct sock *BPF_STRUCT_OPS(bpf_first_get_subflow, struct mptcp_sock *msk) +{ + return msk->first; +} + +SEC(".struct_ops") +struct mptcp_sched_ops first =3D { + .init =3D (void *)mptcp_sched_first_init, + .release =3D (void *)mptcp_sched_first_release, + .get_subflow =3D (void *)bpf_first_get_subflow, + .name =3D "bpf_first", +}; --=20 2.34.1