From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from BN1PR04CU002.outbound.protection.outlook.com (mail-eastus2azon11010005.outbound.protection.outlook.com [52.101.56.5]) (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 DABC041D11A for ; Mon, 3 Aug 2026 14:08:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=52.101.56.5 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785766086; cv=fail; b=G0s0RGVrrf4V3Pihr16voHZUPfmbXEgYIyhESIPN4qATTMglg/hFoBBmwZwnOhnaviFwURccVDldgrLs7P+t8bBa2z/Dc253WjqEDLJ3uvrmBNC3mdW5HVUwGNxdDwKywn5mmhVp8siuv4zI5Cvx+gXrwzlUThG+D6Aetwfe9do= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785766086; c=relaxed/simple; bh=w+sbI0ie4crsT2fa6BopzF06W6eSjjJs42PTLC+u3mc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=mnrnbX8yYw/dR+dyVLiaikteOyRxdMPgV1o8MwrWR0lZu/ayVjBXtUSCS04BcXNqPMncQpGXCy/w9rj1j5S8pRPa1a5iesoJ4BjWoxve4u/rhyk5NKP7oSANyo8YNjMLZM811KYWRdgHtOkmN5szCpzZ2NqvRJHirBdP906yfWI= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com; spf=fail smtp.mailfrom=nvidia.com; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b=eOjk9dDs; arc=fail smtp.client-ip=52.101.56.5 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=nvidia.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=nvidia.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=Nvidia.com header.i=@Nvidia.com header.b="eOjk9dDs" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=Ko0m+KBRqGat36WH3TrxbQH2SWcVmaR5+B8TY2EigcU5T9+O4OQzUycbZMkdC2mML/m9/pPBkaf/BCr7tIVhKRjvOVbG4DLdYBpViHkYRqzKSfZwbveGvAG6PnoJNUBJP3x5OWW1UkzVo5eLypkW/JcRY03RYtecDTnWA33tNeWMGF23Kql+sc57U/htQi8dCpIlb1QYTr/RGNts8kHPM1Ypx2tdZw4dSjChpYyIonp8mN7NAdJ2MCK+dgM8bwGNFMcjGlsCdczKm3izFaT3g+Ud2pZ8MHFgXWuam6BS+IE7jlSacf6/MVux1RU6vxyMRQ3iy1sZTVlq6D3o4woU6g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; 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=G2WJoznzGB072gkkI9WIdCGNHg02c1t948HaW6N5Z94=; b=fM3n4/7HqXFzOwYogjUKPoS2/BkZTwF8rDWvUMnxQYuPxt7YydsbnqqVFn4Yew8u9qDux+PVExLsZYOWixda8uT1yUCSHztWmRInbQpI8vmqwPgEQAiRf9L4M2uejjZ77uYd2Yara6cBmABOb0NUmyipM6zyhlCkzzYKzxLeJpdlxkPWk/ACZuYweTPnqd0IUrjTodi7iL3B+gPlv9vqX/7yi3s4jC396uRPRFoKbDy3Ei45MbwbXXo/UTIwPNxarLnPyBQnunGCYgkU1GNX92SqJCZd/MQbAWMPSCCkQcucM9vDuqF/4vQccG3QZpw5hUSU3BMC4vVXtk4hErARtg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=G2WJoznzGB072gkkI9WIdCGNHg02c1t948HaW6N5Z94=; b=eOjk9dDsVifOZkorjru7ro70K1K5JbIR8Aj4ISTRSHG6iMeL0VZ6iYgXsEXaXE35A/xj1x78i1gjRBDNN5D46aplLxH4H3ltyEgPO3eHGEMYZZ+o51Eux1C8l/KR9s/ZwjC1AkbAsv45V7rKXlAVtw1XC9CkhB7qOCzBBGlzIF1nPL9aAGkLeJluRjluAeK3rwE3vKUDR6TOHl5LuwcvzRlm/poVg4iIUkGBFHoFbhQt06++k9o8IHF7MGajUTcosn6NnC4EgDixN0d7WWcuCvhd2qEKYlVoraucmZ6EfLpprVUmlk1sSMDqn4F2hJU4FrTznXi6BMdVM4gSHbtLfA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from BL0PR12MB5505.namprd12.prod.outlook.com (2603:10b6:208:1ce::7) by SJ0PR12MB7459.namprd12.prod.outlook.com (2603:10b6:a03:48d::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.270.18; Mon, 3 Aug 2026 14:08:01 +0000 Received: from BL0PR12MB5505.namprd12.prod.outlook.com ([fe80::9329:96cf:507a:eb21]) by BL0PR12MB5505.namprd12.prod.outlook.com ([fe80::9329:96cf:507a:eb21%3]) with mapi id 15.21.0270.017; Mon, 3 Aug 2026 14:08:00 +0000 From: Shahar Shitrit To: netdev@vger.kernel.org, mst@redhat.com, jasowang@redhat.com, pabeni@redhat.com Cc: virtualization@lists.linux.dev, parav@nvidia.com, shshitrit@nvidia.com, yohadt@nvidia.com, xuanzhuo@linux.alibaba.com, eperezma@redhat.com, jgg@ziepe.ca, kevin.tian@intel.com, kuba@kernel.org, andrew+netdev@lunn.ch, edumazet@google.com, danielj@nvidia.com Subject: [PATCH net-next v21 13/13] virtio_net: Add get ethtool flow rules ops Date: Mon, 3 Aug 2026 17:07:21 +0300 Message-ID: <20260803140721.1871678-14-shshitrit@nvidia.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20260803140721.1871678-1-shshitrit@nvidia.com> References: <20260803140721.1871678-1-shshitrit@nvidia.com> Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ClientProxiedBy: TLZP290CA0001.ISRP290.PROD.OUTLOOK.COM (2603:1096:950:9::14) To BL0PR12MB5505.namprd12.prod.outlook.com (2603:10b6:208:1ce::7) Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL0PR12MB5505:EE_|SJ0PR12MB7459:EE_ X-MS-Office365-Filtering-Correlation-Id: ef115e30-c1ee-42bb-9a56-08def168a078 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|23010399003|376014|7416014|366016|21046099003|11063799006|56012099006|10067099003|18002099003|22082099003; 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:BL0PR12MB5505.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(23010399003)(376014)(7416014)(366016)(21046099003)(11063799006)(56012099006)(10067099003)(18002099003)(22082099003);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?sn7sO0A/+EkN6KuQDLZ9kUhiOFyFSl3tH26KFZUDHOpOf6oYa9AYfIyyAq/X?= =?us-ascii?Q?VC/V5KJcJeq7rj68ZRZfRCv9BSnpskv87NS+8fWDQND8/P6E/RWEC+OF7kS2?= =?us-ascii?Q?7gnh1bZpkN342FpzgJhK1Wxs0YwRFWQLET/if1Zs1OcEIv6gJXeAXIpNmUNU?= =?us-ascii?Q?ABxbfhAzgxyelktiL/ORCDq/llsjx8lMODj/HN8OsYYsdRmKNJuw9KntE58i?= =?us-ascii?Q?qNY2bxRT3tbuECCCQ0z5JBdpXXjmP5qeV4Bd2D2IDKDnYvj9OPFMb8kVrhtO?= =?us-ascii?Q?3AWuBtSnbQXbS4n20GFSKI6aREsMYAdb4RzZalFyTgGSFC6B+/UN7NmeLSUz?= =?us-ascii?Q?qzH94hUwv7ia5y61Xm/YUVhYIjjSWPfS9YxZWjNb1nPbpS+8b3Grl2ZiqH9E?= =?us-ascii?Q?MblKCVOQdFHVo7J3H0nW+Z2VjBV5VIvygXer+d/RdAOTS/CtdEo0RD33E7eJ?= =?us-ascii?Q?X8xuNUKh/fOWFeyb0nlXeJQrriBAs4fGxcHLLOx6lQDvsG5SLn1k0hstVQnI?= =?us-ascii?Q?awoUwk4mKiNn+vY3qH9ozYz20QAT6EP0JdpzTxM7MbHhKByIDvpvdRO76Li/?= =?us-ascii?Q?GlIHRrXb1ksMh2n4Z0HghltaII5QAGDZcnFILGHG9vMMKbHdTIaBqAHWuGv4?= =?us-ascii?Q?c2Hl3CwN2Rv/cUtXA/I3IdsQTw2oX4+RPc4PmL99uOGXFNQBv8bNef/GYhUJ?= =?us-ascii?Q?UQo2Mg2UYKgtYD4oqndLg25MahJUgYEzx8/KBGekeKDvwuAjWreT50TEC26v?= =?us-ascii?Q?Sq51YQasDYPbpX6MSc8IWCzso1r5ys7AX33sEm52TcSPpicJjH3EvGwIHYRL?= =?us-ascii?Q?06pjldXAfp2tWRr6QHPaiKAVfxUPy3eSsEp5cjneUZtfFUWV2y1pz/+wq/0A?= =?us-ascii?Q?q+Dl1CqGIrZJoz4NePKJORgEoaSeuvxy112uOqmHwjARmUhKSuSH7ZBwapYU?= =?us-ascii?Q?K+QkMpbmiWrGeTV/8IC71dgLGsWfjrVqOSuoikSSyZ5D9Mt6hKf9vviQd6C9?= =?us-ascii?Q?sIO0z0gIsuk4v6fNzRyfFCtyeBYPuX7zGRqXImmYWrZfGCIMAi1yjSitDeEE?= =?us-ascii?Q?i6idOsBKcjEsvskVRUXk5fWufqxo9KU0HFgV2/aSXWt/hmQulXqSvfyDbhv9?= =?us-ascii?Q?zOMb3fDc8KgnoTNidGAwTGb+Cx8OwY+cSctPs3WfJYBxunZpS4Os0DyehPyI?= =?us-ascii?Q?ibDIxAyIudriiu0RBgd5TjSePJ8kfDFezLOrl0/TcNI4PK8IxuQ/eu3wN0yZ?= =?us-ascii?Q?6kdb8XE2anFIDlpkdtxNXDtd9Gg+2D6sW4HsuvJBD9crleNa+CBUtl0fj66m?= =?us-ascii?Q?whX7pv6HbuoIPgxnstWoBuwU6tQOoFhPNBuyRFw4qpE6OYGKutPO08DPYtGx?= =?us-ascii?Q?lRGK0BXyw/Z2M3krsWjHZtKzgCxXuxmvt9gHdOVg3HOA+e6btXzFXgpCC/+i?= =?us-ascii?Q?Avi8xUOUslMoGjxc/rR3VndyXxXWsbBYYwOUCJxfJKJrXPAHQiaL/txHA6Zb?= =?us-ascii?Q?MwAAW4EhCMI2ldU1p9coTaTROeXHNN9Zb5TcjXMJPOEouNY1wo+X3VMx59jV?= =?us-ascii?Q?C6Vm3JQgRRVn3mrhCvGsKr933rk5doRt2pxkEbB5WR9pjQnD0GnLPv1oWIVV?= =?us-ascii?Q?ygBZphKBqAhVnudMog6O0X66KOVT985qTA2zU/raEQxlI1MSUaCTsxBtjolr?= =?us-ascii?Q?4Tch5JkysNosjgHLic3y6fhqcSdFHzdefqHAnQVddU39fv4iJfWWepEICbcD?= =?us-ascii?Q?wbwMMhPUVQ=3D=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: ef115e30-c1ee-42bb-9a56-08def168a078 X-MS-Exchange-CrossTenant-AuthSource: BL0PR12MB5505.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 03 Aug 2026 14:08:00.6211 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: YeG+33NiJjrVD0TuM3l3dzYc+falA3mLFmsTLSFZnB33PvLUl4nyAmi2g6hLUi5YXpWAtDj4F9VIrsBjTnDm7A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ0PR12MB7459 From: Daniel Jurgens - Get total number of rules. There's no user interface for this. It is used to allocate an appropriately sized buffer for getting all the rules. - Get specific rule $ ethtool -u ens9 rule 0 Filter: 0 Rule Type: UDP over IPv4 Src IP addr: 0.0.0.0 mask: 255.255.255.255 Dest IP addr: 192.168.5.2 mask: 0.0.0.0 TOS: 0x0 mask: 0xff Src port: 0 mask: 0xffff Dest port: 4321 mask: 0x0 Action: Direct to queue 16 - Get all rules: $ ethtool -u ens9 31 RX rings available Total 2 rules Filter: 0 Rule Type: UDP over IPv4 Src IP addr: 0.0.0.0 mask: 255.255.255.255 Dest IP addr: 192.168.5.2 mask: 0.0.0.0 ... Filter: 1 Flow Type: Raw Ethernet Src MAC addr: 00:00:00:00:00:00 mask: FF:FF:FF:FF:FF:FF Dest MAC addr: 08:11:22:33:44:54 mask: 00:00:00:00:00:00 Signed-off-by: Daniel Jurgens Reviewed-by: Parav Pandit Reviewed-by: Xuan Zhuo Signed-off-by: Shahar Shitrit --- drivers/net/virtio_net.c | 75 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 236887c7976d..3d5eb716361a 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -6552,6 +6552,58 @@ static int virtnet_ethtool_flow_remove(struct virtnet_ff *ff, int location) return err; } +static int virtnet_ethtool_get_flow_count(struct virtnet_ff *ff, + struct ethtool_rxnfc *info) +{ + if (!ff->ff_supported) + return -EOPNOTSUPP; + + info->rule_cnt = ff->ethtool.num_rules; + info->data = le32_to_cpu(ff->ff_caps->rules_limit) | RX_CLS_LOC_SPECIAL; + + return 0; +} + +static int virtnet_ethtool_get_flow(struct virtnet_ff *ff, + struct ethtool_rxnfc *info) +{ + struct virtnet_ethtool_rule *eth_rule; + + if (!ff->ff_supported) + return -EOPNOTSUPP; + + eth_rule = xa_load(&ff->ethtool.rules, info->fs.location); + if (!eth_rule) + return -ENOENT; + + info->fs = eth_rule->flow_spec; + + return 0; +} + +static int +virtnet_ethtool_get_all_flows(struct virtnet_ff *ff, + struct ethtool_rxnfc *info, u32 *rule_locs) +{ + struct virtnet_ethtool_rule *eth_rule; + unsigned long i = 0; + int idx = 0; + + if (!ff->ff_supported) + return -EOPNOTSUPP; + + xa_for_each(&ff->ethtool.rules, i, eth_rule) { + if (idx == info->rule_cnt) + return -EMSGSIZE; + rule_locs[idx++] = i; + } + + info->data = le32_to_cpu(ff->ff_caps->rules_limit); + info->rule_cnt = idx; + + return 0; +} + static size_t get_mask_size(u16 type) { switch (type) { @@ -6570,6 +6622,28 @@ static size_t get_mask_size(u16 type) return 0; } +static int virtnet_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info, u32 *rule_locs) +{ + struct virtnet_info *vi = netdev_priv(dev); + int rc; + + switch (info->cmd) { + case ETHTOOL_GRXCLSRLCNT: + rc = virtnet_ethtool_get_flow_count(&vi->ff, info); + break; + case ETHTOOL_GRXCLSRULE: + rc = virtnet_ethtool_get_flow(&vi->ff, info); + break; + case ETHTOOL_GRXCLSRLALL: + rc = virtnet_ethtool_get_all_flows(&vi->ff, info, rule_locs); + break; + default: + rc = -EOPNOTSUPP; + } + + return rc; +} + static int virtnet_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *info) { struct virtnet_info *vi = netdev_priv(dev); @@ -6611,6 +6685,7 @@ static const struct ethtool_ops virtnet_ethtool_ops = { .get_rxfh_fields = virtnet_get_hashflow, .set_rxfh_fields = virtnet_set_hashflow, .get_rx_ring_count = virtnet_get_rx_ring_count, + .get_rxnfc = virtnet_get_rxnfc, .set_rxnfc = virtnet_set_rxnfc, }; -- 2.49.0