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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E531C433F5 for ; Mon, 25 Oct 2021 12:53:43 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C9A8960F9B for ; Mon, 25 Oct 2021 12:53:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C9A8960F9B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lists.linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id A54B440383; Mon, 25 Oct 2021 12:53:42 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id lPikDObEzGE9; Mon, 25 Oct 2021 12:53:41 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id 9518140388; Mon, 25 Oct 2021 12:53:40 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id A5DE5C0039; Mon, 25 Oct 2021 12:53:39 +0000 (UTC) Received: from smtp3.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 4D55EC000E for ; Mon, 25 Oct 2021 12:53:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 3BF8C6086B for ; Mon, 25 Oct 2021 12:53:38 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp3.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=nvidia.com Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id x_Z0PkPRpSh5 for ; Mon, 25 Oct 2021 12:53:37 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.8.0 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2064.outbound.protection.outlook.com [40.107.237.64]) by smtp3.osuosl.org (Postfix) with ESMTPS id 1D58E60766 for ; Mon, 25 Oct 2021 12:53:36 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=k6+ZHMPAQmBENA3XflRizCwhMBg3S4iY9LNehuCcfiQ0z5/8/hm20JQyyqysBHARRlvRt4vqHO82NiotBI7QNZQ4Vz4wiasH/6Zj+4qVISQBy2JhtOmJGH6MJyaeqsH6qa7RrMLyKGlcDyF1dePqQ457lhsVABJT2jhj6FvLZTF3hheUD+R0Nsly+ppFy4UzlPoGrHHT8c4MqVdvpc/80I0BMo4gtzhGyrA7srJSQvhW4rsOmfJIQpbF0c39QYtUQTRaPRm8J8SjjpZ7oNurRR+jfSGDKPjO1Q82qcmyITv8C2q0SxevCwBsolN+HTrO6CjTwsKwHK93Bf0bMaG6FA== 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=bbs0AITJACML/Zic4OE7XNsyVIbutdQ10Vidrzs4OTw=; b=G1X8zBl2SRFYTJ66mCQzkMLsx80VtLLBuwLpfK84U+jdPv1wl/CHq/aNxgtko0AkJw7eChNO5ofmAwIytfiJYxKius7qguB1bEV/XGmh//Hf8ZIx4eWCbcVE8mhSKGZKtAlTvb7dLRvbY2119MdxCSOK65QgsdylrqmKmR7wFyku/JuEomopZtBkiQiNS7QJVxEi5AfvxJ0OCo/026+SSfo90V0xg+7rxHFjmqQKJC6iU9gjMl4xZAEubvlG2ePfXVhP5jTd9rTviMOS6suXv/lVeUOLTgSKEukW8VJYxy/GkmOoquwth68As8XX6J9irsCHLSRk39LxIIc4r94Rlw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 216.228.112.34) smtp.rcpttodomain=redhat.com smtp.mailfrom=nvidia.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); 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=bbs0AITJACML/Zic4OE7XNsyVIbutdQ10Vidrzs4OTw=; b=Rujk55ivpW0rHfvPk6IvxeYMRjKYAh5O1iVaI1Piq96RCnEkRxs6WmYoKlcwFkpCZMRUzGduBJuSAd4qOmzV9YO/T7wKGple0zGvbWzfGXMYRhThz12YdZ+IcMcIYznCQmGKab4N4Ayv2uX1qvPu4HVnbdX1FtZfzGHsTFejVqGuacVPDRvnLdzerXnWHwFb0QPietgCdwM+bew8hBiy6twt7tfCsCB0DO2npiMk2fAuKttGt7AvlQU/AzIW1nNa/UYsZ+diO0E1oFUR5goEF6V+g/RS3YTMMkGf9Ju9gRChDkco5DepAzhDqvdK6abaLYHi5lY50fcrQTTRNn/KoA== Received: from MWHPR1701CA0012.namprd17.prod.outlook.com (2603:10b6:301:14::22) by DM6PR12MB3691.namprd12.prod.outlook.com (2603:10b6:5:1c5::30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4628.18; Mon, 25 Oct 2021 12:53:33 +0000 Received: from CO1NAM11FT043.eop-nam11.prod.protection.outlook.com (2603:10b6:301:14:cafe::49) by MWHPR1701CA0012.outlook.office365.com (2603:10b6:301:14::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4628.16 via Frontend Transport; Mon, 25 Oct 2021 12:53:33 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 216.228.112.34) smtp.mailfrom=nvidia.com; redhat.com; dkim=none (message not signed) header.d=none;redhat.com; dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 216.228.112.34 as permitted sender) receiver=protection.outlook.com; client-ip=216.228.112.34; helo=mail.nvidia.com; Received: from mail.nvidia.com (216.228.112.34) by CO1NAM11FT043.mail.protection.outlook.com (10.13.174.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.4628.16 via Frontend Transport; Mon, 25 Oct 2021 12:53:32 +0000 Received: from sw-mtx-036.mtx.labs.mlnx (172.20.187.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Mon, 25 Oct 2021 12:53:31 +0000 To: Subject: [PATCH linux-next v5 2/8] vdpa: Introduce query of device config layout Date: Mon, 25 Oct 2021 15:53:10 +0300 Message-ID: <20211025125316.67664-3-parav@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20211025125316.67664-1-parav@nvidia.com> References: <20211025125316.67664-1-parav@nvidia.com> MIME-Version: 1.0 X-Originating-IP: [172.20.187.5] X-ClientProxiedBy: HQMAIL107.nvidia.com (172.20.187.13) To HQMAIL107.nvidia.com (172.20.187.13) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 399ae671-3233-4f00-fe19-08d997b673bb X-MS-TrafficTypeDiagnostic: DM6PR12MB3691: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:1186; 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:216.228.112.34; CTRY:US; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:mail.nvidia.com; PTR:schybrid03.nvidia.com; CAT:NONE; SFS:(4636009)(36840700001)(46966006)(336012)(36860700001)(316002)(426003)(4326008)(83380400001)(54906003)(107886003)(82310400003)(86362001)(5660300002)(70206006)(70586007)(508600001)(8936002)(356005)(2616005)(26005)(47076005)(8676002)(6916009)(36756003)(186003)(16526019)(1076003)(2906002)(6666004)(7636003); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Oct 2021 12:53:32.9498 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 399ae671-3233-4f00-fe19-08d997b673bb X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT043.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3691 Cc: elic@nvidia.com, mst@redhat.com X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Parav Pandit via Virtualization Reply-To: Parav Pandit Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" Introduce a command to query a device config layout. An example query of network vdpa device: $ vdpa dev add name bar mgmtdev vdpasim_net $ vdpa dev config show bar: mac 00:35:09:19:48:05 link up link_announce false mtu 1500 $ vdpa dev config show -jp { "config": { "bar": { "mac": "00:35:09:19:48:05", "link ": "up", "link_announce ": false, "mtu": 1500, } } } Signed-off-by: Parav Pandit Signed-off-by: Eli Cohen --- changelog: v3->v4: - removed config space fields reporting which are not used by mlx5 and sim drivers --- drivers/vdpa/vdpa.c | 176 ++++++++++++++++++++++++++++++++++++++ include/linux/vdpa.h | 2 + include/uapi/linux/vdpa.h | 6 ++ 3 files changed, 184 insertions(+) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index d42697699366..973c56fb60b9 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include static LIST_HEAD(mdev_head); /* A global mutex that protects vdpa management device and device level operations. */ @@ -66,6 +68,7 @@ static void vdpa_release_dev(struct device *d) ops->free(vdev); ida_simple_remove(&vdpa_index_ida, vdev->index); + mutex_destroy(&vdev->cf_mutex); kfree(vdev); } @@ -127,6 +130,7 @@ struct vdpa_device *__vdpa_alloc_device(struct device *parent, if (err) goto err_name; + mutex_init(&vdev->cf_mutex); device_initialize(&vdev->dev); return vdev; @@ -309,6 +313,7 @@ void vdpa_get_config(struct vdpa_device *vdev, unsigned int offset, { const struct vdpa_config_ops *ops = vdev->config; + mutex_lock(&vdev->cf_mutex); /* * Config accesses aren't supposed to trigger before features are set. * If it does happen we assume a legacy guest. @@ -316,6 +321,7 @@ void vdpa_get_config(struct vdpa_device *vdev, unsigned int offset, if (!vdev->features_valid) vdpa_set_features(vdev, 0); ops->get_config(vdev, offset, buf, len); + mutex_unlock(&vdev->cf_mutex); } EXPORT_SYMBOL_GPL(vdpa_get_config); @@ -329,7 +335,9 @@ EXPORT_SYMBOL_GPL(vdpa_get_config); void vdpa_set_config(struct vdpa_device *vdev, unsigned int offset, const void *buf, unsigned int length) { + mutex_lock(&vdev->cf_mutex); vdev->config->set_config(vdev, offset, buf, length); + mutex_unlock(&vdev->cf_mutex); } EXPORT_SYMBOL_GPL(vdpa_set_config); @@ -661,6 +669,168 @@ static int vdpa_nl_cmd_dev_get_dumpit(struct sk_buff *msg, struct netlink_callba return msg->len; } +static int vdpa_dev_net_mq_config_fill(struct vdpa_device *vdev, + struct sk_buff *msg, u64 features, + const struct virtio_net_config *config) +{ + u16 val_u16; + + if ((features & (1ULL << VIRTIO_NET_F_MQ)) == 0) + return 0; + + val_u16 = le16_to_cpu(config->max_virtqueue_pairs); + return nla_put_u16(msg, VDPA_ATTR_DEV_NET_CFG_MAX_VQP, val_u16); +} + +static int vdpa_dev_net_config_fill(struct vdpa_device *vdev, struct sk_buff *msg) +{ + struct virtio_net_config config = {}; + u64 features; + u16 val_u16; + + vdpa_get_config(vdev, 0, &config, sizeof(config)); + + if (nla_put(msg, VDPA_ATTR_DEV_NET_CFG_MACADDR, sizeof(config.mac), + config.mac)) + return -EMSGSIZE; + + val_u16 = le16_to_cpu(config.status); + if (nla_put_u16(msg, VDPA_ATTR_DEV_NET_STATUS, val_u16)) + return -EMSGSIZE; + + val_u16 = le16_to_cpu(config.mtu); + if (nla_put_u16(msg, VDPA_ATTR_DEV_NET_CFG_MTU, val_u16)) + return -EMSGSIZE; + + features = vdev->config->get_features(vdev); + + return vdpa_dev_net_mq_config_fill(vdev, msg, features, &config); +} + +static int +vdpa_dev_config_fill(struct vdpa_device *vdev, struct sk_buff *msg, u32 portid, u32 seq, + int flags, struct netlink_ext_ack *extack) +{ + u32 device_id; + void *hdr; + int err; + + hdr = genlmsg_put(msg, portid, seq, &vdpa_nl_family, flags, + VDPA_CMD_DEV_CONFIG_GET); + if (!hdr) + return -EMSGSIZE; + + if (nla_put_string(msg, VDPA_ATTR_DEV_NAME, dev_name(&vdev->dev))) { + err = -EMSGSIZE; + goto msg_err; + } + + device_id = vdev->config->get_device_id(vdev); + if (nla_put_u32(msg, VDPA_ATTR_DEV_ID, device_id)) { + err = -EMSGSIZE; + goto msg_err; + } + + switch (device_id) { + case VIRTIO_ID_NET: + err = vdpa_dev_net_config_fill(vdev, msg); + break; + default: + err = -EOPNOTSUPP; + break; + } + if (err) + goto msg_err; + + genlmsg_end(msg, hdr); + return 0; + +msg_err: + genlmsg_cancel(msg, hdr); + return err; +} + +static int vdpa_nl_cmd_dev_config_get_doit(struct sk_buff *skb, struct genl_info *info) +{ + struct vdpa_device *vdev; + struct sk_buff *msg; + const char *devname; + struct device *dev; + int err; + + if (!info->attrs[VDPA_ATTR_DEV_NAME]) + return -EINVAL; + devname = nla_data(info->attrs[VDPA_ATTR_DEV_NAME]); + msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + mutex_lock(&vdpa_dev_mutex); + dev = bus_find_device(&vdpa_bus, NULL, devname, vdpa_name_match); + if (!dev) { + NL_SET_ERR_MSG_MOD(info->extack, "device not found"); + err = -ENODEV; + goto dev_err; + } + vdev = container_of(dev, struct vdpa_device, dev); + if (!vdev->mdev) { + NL_SET_ERR_MSG_MOD(info->extack, "unmanaged vdpa device"); + err = -EINVAL; + goto mdev_err; + } + err = vdpa_dev_config_fill(vdev, msg, info->snd_portid, info->snd_seq, + 0, info->extack); + if (!err) + err = genlmsg_reply(msg, info); + +mdev_err: + put_device(dev); +dev_err: + mutex_unlock(&vdpa_dev_mutex); + if (err) + nlmsg_free(msg); + return err; +} + +static int vdpa_dev_config_dump(struct device *dev, void *data) +{ + struct vdpa_device *vdev = container_of(dev, struct vdpa_device, dev); + struct vdpa_dev_dump_info *info = data; + int err; + + if (!vdev->mdev) + return 0; + if (info->idx < info->start_idx) { + info->idx++; + return 0; + } + err = vdpa_dev_config_fill(vdev, info->msg, NETLINK_CB(info->cb->skb).portid, + info->cb->nlh->nlmsg_seq, NLM_F_MULTI, + info->cb->extack); + if (err) + return err; + + info->idx++; + return 0; +} + +static int +vdpa_nl_cmd_dev_config_get_dumpit(struct sk_buff *msg, struct netlink_callback *cb) +{ + struct vdpa_dev_dump_info info; + + info.msg = msg; + info.cb = cb; + info.start_idx = cb->args[0]; + info.idx = 0; + + mutex_lock(&vdpa_dev_mutex); + bus_for_each_dev(&vdpa_bus, NULL, &info, vdpa_dev_config_dump); + mutex_unlock(&vdpa_dev_mutex); + cb->args[0] = info.idx; + return msg->len; +} + static const struct nla_policy vdpa_nl_policy[VDPA_ATTR_MAX + 1] = { [VDPA_ATTR_MGMTDEV_BUS_NAME] = { .type = NLA_NUL_STRING }, [VDPA_ATTR_MGMTDEV_DEV_NAME] = { .type = NLA_STRING }, @@ -692,6 +862,12 @@ static const struct genl_ops vdpa_nl_ops[] = { .doit = vdpa_nl_cmd_dev_get_doit, .dumpit = vdpa_nl_cmd_dev_get_dumpit, }, + { + .cmd = VDPA_CMD_DEV_CONFIG_GET, + .validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP, + .doit = vdpa_nl_cmd_dev_config_get_doit, + .dumpit = vdpa_nl_cmd_dev_config_get_dumpit, + }, }; static struct genl_family vdpa_nl_family __ro_after_init = { diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 267236aab34c..5cc5e501397f 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -63,6 +63,7 @@ struct vdpa_mgmt_dev; * @dev: underlying device * @dma_dev: the actual device that is performing DMA * @config: the configuration ops for this device. + * @cf_mutex: Protects get and set access to configuration layout. * @index: device index * @features_valid: were features initialized? for legacy guests * @use_va: indicate whether virtual address must be used by this device @@ -74,6 +75,7 @@ struct vdpa_device { struct device dev; struct device *dma_dev; const struct vdpa_config_ops *config; + struct mutex cf_mutex; /* Protects get/set config */ unsigned int index; bool features_valid; bool use_va; diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index e3b87879514c..a252f06f9dfd 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -17,6 +17,7 @@ enum vdpa_command { VDPA_CMD_DEV_NEW, VDPA_CMD_DEV_DEL, VDPA_CMD_DEV_GET, /* can dump */ + VDPA_CMD_DEV_CONFIG_GET, /* can dump */ }; enum vdpa_attr { @@ -34,6 +35,11 @@ enum vdpa_attr { VDPA_ATTR_DEV_MAX_VQ_SIZE, /* u16 */ VDPA_ATTR_DEV_MIN_VQ_SIZE, /* u16 */ + VDPA_ATTR_DEV_NET_CFG_MACADDR, /* binary */ + VDPA_ATTR_DEV_NET_STATUS, /* u8 */ + VDPA_ATTR_DEV_NET_CFG_MAX_VQP, /* u16 */ + VDPA_ATTR_DEV_NET_CFG_MTU, /* u16 */ + /* new attributes must be added above here */ VDPA_ATTR_MAX, }; -- 2.25.4 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization