From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2E6D5C2BA4C for ; Wed, 26 Jan 2022 06:55:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237178AbiAZGzf (ORCPT ); Wed, 26 Jan 2022 01:55:35 -0500 Received: from mail-co1nam11on2114.outbound.protection.outlook.com ([40.107.220.114]:37120 "EHLO NAM11-CO1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S237107AbiAZGze (ORCPT ); Wed, 26 Jan 2022 01:55:34 -0500 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=eOr/XbByYppN5Qgk+y5931i602vqU8e9NlkRTjYjHab08I64nf/TlQ4q0BxBuCxZ9HxwwVXknY1yBN1S3zyoxXX9JXPSs1JwzmJFC7NUhy9AXV/dqkLtmfZli/4CVMYo0boPVtIofg4yw/j0fgVl1EbqmtbfB9D2hwNctGF9BLj0FH1P32ZOrPLfL0AhnpuFQS/HoEu9Ftb32B1ahA8pCz0GSefc9Ruv1Gn05ZNp2G3P2kT7KDxWvPdKZT/MFIl3TCwGVNFPPs9bEkOKtKUyrVjw8wyFfc/DqhHFoKEQ7KVp36LO1UvA6m+9M407JNyM8A2X71NnZRYQSIOIlv5U6w== 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=FuIWGCbUyiphrpR+Iu9cnF+EcKkpm6Rp9ql2L8cAN3E=; b=d6nuiwkPrutki1uOFQniUCzI0HXQpUqQjtd37XskXmwKM3gR954S1yF9CjjbWSWTcftvvx21tpOWVzlqeUuJJ/Aq8OxVMiHc6yI9CqYz5Euyx5Bj/HYhZmmS6XvUq4NNcuuO/bYjf3BOf2HYFjS5fiCoAi7yo+I8c8Q3j2zSLJpXAfe9NK4rFkM4/SBfFHEib/qbsHzR4a9SWZUNTKnqDfUrAQLdkjvdkwBQ47MaowOYzKfQD5St+K5LNSiBPmYgcTcPTaIcNehmu8qKVUu543EkBfDOywZRmLYIupvyAKWVtpLzIrOhjdgvvgXm9f8NTm5n4/8KdhkvY6/o5GLk+Q== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=corigine.onmicrosoft.com; s=selector2-corigine-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=FuIWGCbUyiphrpR+Iu9cnF+EcKkpm6Rp9ql2L8cAN3E=; b=U1eAuR0wHMtTpKP/lScrPqHJke16+b6xDNAfE17iAmb53svlWbtakt77H8Bao8Pf1rh2sdpfCK7SQEEd9cHbuVa74T2n4WfiAi12LCJTKvVPNZnGShe+A6E3dOEpjmVnLwAwQ65rJJjDnRIG47GV4GCpIUhceCkMSMOP8+z+J8E= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=corigine.com; Received: from CY4PR1301MB2167.namprd13.prod.outlook.com (2603:10b6:910:43::20) by BN6PR13MB1105.namprd13.prod.outlook.com (2603:10b6:404:73::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4930.15; Wed, 26 Jan 2022 06:55:31 +0000 Received: from CY4PR1301MB2167.namprd13.prod.outlook.com ([fe80::c9cc:2e41:f4dc:bcb7]) by CY4PR1301MB2167.namprd13.prod.outlook.com ([fe80::c9cc:2e41:f4dc:bcb7%6]) with mapi id 15.20.4930.015; Wed, 26 Jan 2022 06:55:31 +0000 From: Baowen Zheng To: David Ahern Cc: netdev@vger.kernel.org, oss-drivers@corigine.com, jhs@mojatatu.com, Victor Nogueira , baowen zheng , Simon Horman Subject: [PATCH iproute2-next v2] tc: add skip_hw and skip_sw to control action offload Date: Wed, 26 Jan 2022 14:54:39 +0800 Message-Id: <1643180079-17097-1-git-send-email-baowen.zheng@corigine.com> X-Mailer: git-send-email 1.8.3.1 Content-Type: text/plain X-ClientProxiedBy: HK2PR04CA0085.apcprd04.prod.outlook.com (2603:1096:202:15::29) To CY4PR1301MB2167.namprd13.prod.outlook.com (2603:10b6:910:43::20) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 6f586023-291f-4230-f5a0-08d9e098d7cd X-MS-TrafficTypeDiagnostic: BN6PR13MB1105:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6430; 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:CY4PR1301MB2167.namprd13.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(136003)(346002)(376002)(366004)(39830400003)(396003)(2616005)(107886003)(26005)(186003)(83380400001)(6512007)(4326008)(66476007)(38100700002)(36756003)(8936002)(66556008)(38350700002)(8676002)(66946007)(44832011)(86362001)(6506007)(6486002)(54906003)(5660300002)(6916009)(316002)(2906002)(508600001)(52116002)(20210929001);DIR:OUT;SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?AZQu9XKVB5v8xsOvuFOBI64QMw0xI/G4p+I5WsE/8nZDPgLghKrxDxzHTk63?= =?us-ascii?Q?FDym7gK8mUvdm98SKNXOgAx6MvM35DXwB21Mpy5MnoOYLHBx0rINwOseU4bu?= =?us-ascii?Q?xbt811WCYaIJUvjVzEJePI1wouNuSJRg2zc+v/yqqBCZfEATLX9rODABKTNq?= =?us-ascii?Q?zVAjlUeZtwhZ1yy3c9BWxzB+txR5Zi0VjMLOQsFUjaJdm10PtQoEVrRdu6Gz?= =?us-ascii?Q?g/4MsmHpDuDIBmTK9AJZdcHq2FAIrJ05c4g5axdNP9YOGqZPYyPgdyxKSqlZ?= =?us-ascii?Q?XrHIsgqm4tO8A3S/RV+cdu09D66240iwFxZw9oDV+vcxV2Qrgg3ZkQ9KeQHR?= =?us-ascii?Q?h5l/37Z9ofpCb8nW2T5pZS5u6z5irscLBHnZpMb1dH5eLCaTHNQWcsv/n+jD?= =?us-ascii?Q?aC9Tl3tblXyvs3l8pKPp4fKWUiO21aLU/eQSN1EMsf4NkhmIZ2PHHXnrRL8r?= =?us-ascii?Q?fpnwF6e9Pdc/n4gfr9Bpm/+GIpXeW0XLCBU33m92jFuDlPBtOkD8evVKsAw1?= =?us-ascii?Q?hIGKbbsp2bbcHPlHnbAzVmAleMVr6y1gPrroBzE/wh9mg+K32J8ILI1p8lPA?= =?us-ascii?Q?B8ZfatTh6KOUCidFKtYxOjzTzsOp/udn1Zc3VrsfEEYZIszXK5HwmSljsNGx?= =?us-ascii?Q?bzkqHB50PmC4NFzApdxkyxerv64cpz7RoFRnNfwPK2JRVMwFPGjIG63C4HUr?= =?us-ascii?Q?RR1dhFq9K9bsleDjw1WOajCmHXh+x4CSQ4wV2Wyt/3WRmIzUr0fE+MQpXD6G?= =?us-ascii?Q?JeEYgDpEw1wvso/rStk5y5DswkZ1mimOSMWBs86s0zybxi3i47kv4cZtPjw6?= =?us-ascii?Q?NhMXiVKK9/4uCNjTndPWcMGFBLM7hR+YQFJSFgEDdnaNRZ+xBMS7C+mMX6T0?= =?us-ascii?Q?oYUdOmplaOkSwQJ4erBAehIQw93HnogujFNNYizhoBQz1uv6D7FDYE+SVi/x?= =?us-ascii?Q?JfEZk4X6KepFRWLYlHcKfAKMVTc2FH+nNmoilHERKJ1AaX05+56P7dyRJxBk?= =?us-ascii?Q?ZsosgEf9vlFXTB1VxSI/8gQEKtsoOxxbJ4j1EWlCRM6LXgjr3Ib7l76DIuOZ?= =?us-ascii?Q?gFRX+V1O+IIj9G0WVBVQjXPgPH7cARwNKsNeMEL+1L3cXN5hCAaGIZWB0cF+?= =?us-ascii?Q?+89Y+9h6jIkF9qQ42bLkt5FpfUTXdPQa/lAf8vkzBS0FFz5uHcABs/zQiD6v?= =?us-ascii?Q?Mfmb0FT/JX8JZWWLT0cB5YmYIet1SFQbRB4IxyasfURfu7Jz80s8lHMubs9d?= =?us-ascii?Q?G3JF+X5PVBZAuQarO4D7zTxe4EIN83/TmKrmV5pUTSOGVMu212wQZEMb9ZEA?= =?us-ascii?Q?raHp3CtG2psCPMafCeazt0g2wkPFXkTxKh9lPDgE1+T3jpORU+Wa47BAXtqA?= =?us-ascii?Q?nMnGSMLArgfU6dWkhPeeMT1pO1+XyTv6SLBXJZOUUq0xokqGPl9Sc9JqB03w?= =?us-ascii?Q?CJIMoPKwolpf90HOi3GObLzvgprFlfOmdpXusdLWeSv6rhNqWhpCQxw4wgIL?= =?us-ascii?Q?bkCZ1O5XtRaIJOtrNEhWcj6tvPkHjz21FDbJ12/t7d0eHcLjSPjAQF8JhdaC?= =?us-ascii?Q?f6k5KbhLP0GGFmFUplxcM9WCiz+ctXryWg2PEDCs1FoSx9yyKi/7zikmywCk?= =?us-ascii?Q?GAmJ0GFTpQgYjtqoo3PrhAtCjk2vL69beFJhE3Tu9x4hrWUeBK1hHTp5Cxzg?= =?us-ascii?Q?n1QBtLKHiVulJU9ojFO82+TlRtc=3D?= X-OriginatorOrg: corigine.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6f586023-291f-4230-f5a0-08d9e098d7cd X-MS-Exchange-CrossTenant-AuthSource: CY4PR1301MB2167.namprd13.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jan 2022 06:55:31.1760 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: fe128f2c-073b-4c20-818e-7246a585940c X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 3Z0Y9sHQUSul9GoFUA+dWKVGi6qTiMXLfk+edPNGzzYFzkY+0p1LvzKZdLZQkr9P8kN9xiJA3LbxOyNa77+RGQpx9lM8HiwEhcWPzXSf4WU= X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR13MB1105 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add skip_hw and skip_sw flags for user to control whether offload action to hardware. Also we add hw_count to show how many hardwares accept to offload the action. Change man page to describe the usage of skip_sw and skip_hw flag. An example to add and query action as below. $ tc actions add action police rate 1mbit burst 100k index 100 skip_sw $ tc -s -d actions list action police total acts 1 action order 0: police 0x64 rate 1Mbit burst 100Kb mtu 2Kb action reclassify overhead 0b linklayer ethernet ref 1 bind 0 installed 2 sec used 2 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 skip_sw in_hw in_hw_count 1 used_hw_stats delayed Signed-off-by: baowen zheng Signed-off-by: Simon Horman --- man/man8/tc-actions.8 | 24 ++++++++++++++++++++ tc/m_action.c | 63 +++++++++++++++++++++++++++++++++++++++++++-------- 2 files changed, 77 insertions(+), 10 deletions(-) diff --git a/man/man8/tc-actions.8 b/man/man8/tc-actions.8 index 6f1c201..5c399cd 100644 --- a/man/man8/tc-actions.8 +++ b/man/man8/tc-actions.8 @@ -52,6 +52,8 @@ actions \- independently defined actions in tc .I HWSTATSSPEC ] [ .I CONTROL +] [ +.I SKIPSPEC ] .I ACTISPEC @@ -99,6 +101,11 @@ Time since last update. .IR reclassify " | " pipe " | " drop " | " continue " | " ok } +.I SKIPSPEC +:= { +.IR skip_sw " | " skip_hw +} + .I TC_OPTIONS These are the options that are specific to .B tc @@ -270,6 +277,23 @@ Return to the calling qdisc for packet processing, and end classification of this packet. .RE +.TP +.I SKIPSPEC +The +.I SKIPSPEC +indicates how +.B tc +should proceed when executing the action. Any of the following are valid: +.RS +.TP +.B skip_sw +Do not process action by software. If hardware has no offload support for this +action, operation will fail. +.TP +.B skip_hw +Do not process action by hardware. +.RE + .SH SEE ALSO .BR tc (8), .BR tc-bpf (8), diff --git a/tc/m_action.c b/tc/m_action.c index b16882a..b4cf94f 100644 --- a/tc/m_action.c +++ b/tc/m_action.c @@ -51,9 +51,10 @@ static void act_usage(void) " FL := ls | list | flush | \n" " ACTNAMESPEC := action \n" " ACTISPEC := \n" - " ACTSPEC := action [INDEXSPEC] [HWSTATSSPEC]\n" + " ACTSPEC := action [INDEXSPEC] [HWSTATSSPEC] [SKIPSPEC]\n" " INDEXSPEC := index <32 bit indexvalue>\n" " HWSTATSSPEC := hw_stats [ immediate | delayed | disabled ]\n" + " SKIPSPEC := [ skip_sw | skip_hw ]\n" " ACTDETAIL := \n" " Example ACTNAME is gact, mirred, bpf, etc\n" " Each action has its own parameters (ACTPARAMS)\n" @@ -245,6 +246,8 @@ int parse_action(int *argc_p, char ***argv_p, int tca_id, struct nlmsghdr *n) goto done0; } else { struct action_util *a = NULL; + int skip_loop = 2; + __u32 flag = 0; if (!action_a2n(*argv, NULL, false)) strncpy(k, "gact", sizeof(k) - 1); @@ -314,13 +317,27 @@ done0: } if (*argv && strcmp(*argv, "no_percpu") == 0) { + flag |= TCA_ACT_FLAGS_NO_PERCPU_STATS; + NEXT_ARG_FWD(); + } + + /* we need to parse twice to fix skip flag out of order */ + while (skip_loop--) { + if (*argv && strcmp(*argv, "skip_sw") == 0) { + flag |= TCA_ACT_FLAGS_SKIP_SW; + NEXT_ARG_FWD(); + } else if (*argv && strcmp(*argv, "skip_hw") == 0) { + flag |= TCA_ACT_FLAGS_SKIP_HW; + NEXT_ARG_FWD(); + } + } + + if (flag) { struct nla_bitfield32 flags = - { TCA_ACT_FLAGS_NO_PERCPU_STATS, - TCA_ACT_FLAGS_NO_PERCPU_STATS }; + { flag, flag }; addattr_l(n, MAX_MSG, TCA_ACT_FLAGS, &flags, sizeof(struct nla_bitfield32)); - NEXT_ARG_FWD(); } addattr_nest_end(n, tail); @@ -396,13 +413,39 @@ static int tc_print_one_action(FILE *f, struct rtattr *arg) strsz, b1, sizeof(b1))); print_nl(); } - if (tb[TCA_ACT_FLAGS]) { - struct nla_bitfield32 *flags = RTA_DATA(tb[TCA_ACT_FLAGS]); + if (tb[TCA_ACT_FLAGS] || tb[TCA_ACT_IN_HW_COUNT]) { + bool skip_hw = false; + if (tb[TCA_ACT_FLAGS]) { + struct nla_bitfield32 *flags = RTA_DATA(tb[TCA_ACT_FLAGS]); + + if (flags->selector & TCA_ACT_FLAGS_NO_PERCPU_STATS) + print_bool(PRINT_ANY, "no_percpu", "\tno_percpu", + flags->value & + TCA_ACT_FLAGS_NO_PERCPU_STATS); + if (flags->selector & TCA_ACT_FLAGS_SKIP_HW) { + print_bool(PRINT_ANY, "skip_hw", "\tskip_hw", + flags->value & + TCA_ACT_FLAGS_SKIP_HW); + skip_hw = !!(flags->value & TCA_ACT_FLAGS_SKIP_HW); + } + if (flags->selector & TCA_ACT_FLAGS_SKIP_SW) + print_bool(PRINT_ANY, "skip_sw", "\tskip_sw", + flags->value & + TCA_ACT_FLAGS_SKIP_SW); + } + if (tb[TCA_ACT_IN_HW_COUNT] && !skip_hw) { + __u32 count = rta_getattr_u32(tb[TCA_ACT_IN_HW_COUNT]); + if (count) { + print_bool(PRINT_ANY, "in_hw", "\tin_hw", + true); + print_uint(PRINT_ANY, "in_hw_count", + " in_hw_count %u", count); + } else { + print_bool(PRINT_ANY, "not_in_hw", + "\tnot_in_hw", true); + } + } - if (flags->selector & TCA_ACT_FLAGS_NO_PERCPU_STATS) - print_bool(PRINT_ANY, "no_percpu", "\tno_percpu", - flags->value & - TCA_ACT_FLAGS_NO_PERCPU_STATS); print_nl(); } if (tb[TCA_ACT_HW_STATS]) -- 1.8.3.1