From patchwork Fri Feb 3 05:02:03 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Si-Wei Liu X-Patchwork-Id: 52308 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp649342wrn; Thu, 2 Feb 2023 21:05:48 -0800 (PST) X-Google-Smtp-Source: AK7set/rvuf/0i3NNV8qzVnrU6xaK7WueDOppPxRmkUXu4e8mIy5i3fKwUr77UV15ZLU6tppuMfV X-Received: by 2002:a05:6402:144:b0:4a0:e10d:fc0b with SMTP id s4-20020a056402014400b004a0e10dfc0bmr8444775edu.35.1675400747909; Thu, 02 Feb 2023 21:05:47 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1675400747; cv=none; d=google.com; s=arc-20160816; b=zGtscLHOpSUDyaNwxmln62emiSKvoZMMSqmEp+4tRFgS0WzqT4+2Lq+yodhGBDqbo/ NGvBl5nucYVr0wtS1QIoUb0zyV651NuJwRWH1NJIuxNWa1KgHz40HwYeZQ4uXPyil9Qe ObYfJE+D8JJWJ4kMW/c0OyMQ5uIjUTNQBFPar6yQxKTAWFgNSrxYWYqMlki80RR3mqYE /H7IPCa7TaZyJSeE+Eq8FXjuAtLWZXum51adJoN7XjJVIxomX3b5edHsJtsGncZcv6e2 I6BJcghiDv1XWDEhCzmmBiFoerlv3BwBroFjFNRHveegKzW68s/uzrAteNqpjtmyqflc dtnw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:references:in-reply-to:message-id:date:subject :cc:to:from:dkim-signature; bh=bzsrikSqzLTTwIke+OEYxq9wDoMZGz3PJ1oVwfZNlY8=; b=cw9TslTYROQwbTRDfDhDKK7vpeprubnYj2HaadfGCvH8k06q9GdZSZsYYr/OgHp4ZV LBi7o9DdkrBvrzwImzhzi3yigwWo1PIEdL6VxGGbprP7zf59ohOqXL0Thp0ftHQH59EL QPjA1FQo2yV2ra2DzPFXdXNy8S76ChshgSG7GTbqlV0vNR+z+HM7TcJ3LtqD/tGKj77s qSPqIbXp7w9BgnPgoikdy/FS+0G+71U9bY7cAAhI/mM0p6Tc6F+NFk8N0V+nCHXmdH+u pvn6H2DYqnWfGg4tpqSTO1KVgdnVEYH8RUBBWQkkuksxsiivBS2zr407lVtYRlxjl4j2 iv4A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2022-7-12 header.b=mrQPzX4C; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id i40-20020a0564020f2800b004a2758d0cc5si1815176eda.226.2023.02.02.21.05.24; Thu, 02 Feb 2023 21:05:47 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2022-7-12 header.b=mrQPzX4C; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231778AbjBCFDE (ORCPT + 99 others); Fri, 3 Feb 2023 00:03:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230233AbjBCFCg (ORCPT ); Fri, 3 Feb 2023 00:02:36 -0500 Received: from mx0b-00069f02.pphosted.com (mx0b-00069f02.pphosted.com [205.220.177.32]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1975975198 for ; Thu, 2 Feb 2023 21:02:32 -0800 (PST) Received: from pps.filterd (m0246632.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3130NouX028457; Fri, 3 Feb 2023 05:02:28 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2022-7-12; bh=bzsrikSqzLTTwIke+OEYxq9wDoMZGz3PJ1oVwfZNlY8=; b=mrQPzX4C57ipC/iqNHmn+oxbYELZO+vw/8K7RVN/Sit/vFJdMMW+RzPKXWJDOELQVz2Q perC+istTVuAy87UGlPqskEs6KfsO/me7etUTi1Cg/raEN4mYHom1fcwY+HrSSgEBvwn n/vYCajpbOTxxXsThC1Pk4njzvb/6DbqbtVU1a4JP1mfaMytQB/Eny21V9VGawCU3BW6 qbiX0RGRwdSC3yyxPgtIEnGAvYOvBYNJYZPF/KNozZ5qWYCWyz0BKgwnLGhgN2W9YJYw DXCOt1PI2yGd9Qrt8YjXpKMftoHyRiZsAYIR3RZd7TK+/XFC75cRiy1bUh1irvi2vEhc nQ== Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.appoci.oracle.com [147.154.114.232]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 3nfn9ymrqv-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 03 Feb 2023 05:02:28 +0000 Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.17.1.5/8.17.1.5) with ESMTP id 31340RuS006053; Fri, 3 Feb 2023 05:02:27 GMT Received: from ban25x6uut24.us.oracle.com (ban25x6uut24.us.oracle.com [10.153.73.24]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTP id 3nct5a2tm8-7; Fri, 03 Feb 2023 05:02:27 +0000 From: Si-Wei Liu To: mst@redhat.com, jasowang@redhat.com, parav@nvidia.com, elic@nvidia.com Cc: virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 6/6] vdpa/mlx5: support device features provisioning Date: Thu, 2 Feb 2023 21:02:03 -0800 Message-Id: <1675400523-12519-7-git-send-email-si-wei.liu@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1675400523-12519-1-git-send-email-si-wei.liu@oracle.com> References: <1675400523-12519-1-git-send-email-si-wei.liu@oracle.com> X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.122.1 definitions=2023-02-03_02,2023-02-02_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 mlxlogscore=999 adultscore=0 suspectscore=0 mlxscore=0 spamscore=0 phishscore=0 bulkscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302030044 X-Proofpoint-ORIG-GUID: yu7w6tjNpRwxa1xpimgSykgZOpVcw94Q X-Proofpoint-GUID: yu7w6tjNpRwxa1xpimgSykgZOpVcw94Q X-Spam-Status: No, score=-2.8 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1756785014529679847?= X-GMAIL-MSGID: =?utf-8?q?1756785014529679847?= This patch implements features provisioning for mlx5_vdpa. 1) Validate the provisioned features are a subset of the parent features. 2) Clearing features that are not wanted by userspace. For example: # vdpa mgmtdev show pci/0000:41:04.2: supported_classes net max_supported_vqs 65 dev_features CSUM GUEST_CSUM MTU MAC HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ CTRL_VLAN MQ CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM 1) Provision vDPA device with all features derived from the parent # vdpa dev add name vdpa1 mgmtdev pci/0000:41:04.2 # vdpa dev config show vdpa1: mac e4:11:c6:d3:45:f0 link up link_announce false max_vq_pairs 1 mtu 1500 negotiated_features CSUM GUEST_CSUM MTU HOST_TSO4 HOST_TSO6 STATUS CTRL_VQ CTRL_VLAN MQ CTRL_MAC_ADDR VERSION_1 ACCESS_PLATFORM 2) Provision vDPA device with a subset of parent features # vdpa dev add name vdpa1 mgmtdev pci/0000:41:04.2 device_features 0x300020000 # vdpa dev config show vdpa1: negotiated_features CTRL_VQ VERSION_1 ACCESS_PLATFORM Signed-off-by: Si-Wei Liu Reviewed-by: Eli Cohen --- drivers/vdpa/mlx5/net/mlx5_vnet.c | 53 +++++++++++++++++++++++++++++++++------ 1 file changed, 45 insertions(+), 8 deletions(-) diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 867ac18..b40dd1a 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2183,6 +2183,7 @@ static u64 get_supported_features(struct mlx5_core_dev *mdev) mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_STATUS); mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_MTU); mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_CTRL_VLAN); + mlx_vdpa_features |= BIT_ULL(VIRTIO_NET_F_MAC); return mlx_vdpa_features; } @@ -3062,6 +3063,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, struct mlx5_vdpa_dev *mvdev; struct mlx5_vdpa_net *ndev; struct mlx5_core_dev *mdev; + u64 device_features; u32 max_vqs; u16 mtu; int err; @@ -3070,6 +3072,24 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, return -ENOSPC; mdev = mgtdev->madev->mdev; + device_features = mgtdev->mgtdev.supported_features; + if (add_config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) { + if (add_config->device_features & ~device_features) { + dev_warn(mdev->device, + "The provisioned features 0x%llx are not supported by this device with features 0x%llx\n", + add_config->device_features, device_features); + return -EINVAL; + } + device_features &= add_config->device_features; + } + if (!(device_features & BIT_ULL(VIRTIO_F_VERSION_1) && + device_features & BIT_ULL(VIRTIO_F_ACCESS_PLATFORM))) { + dev_warn(mdev->device, + "Must provision minimum features 0x%llx for this device", + BIT_ULL(VIRTIO_F_VERSION_1) | BIT_ULL(VIRTIO_F_ACCESS_PLATFORM)); + return -EOPNOTSUPP; + } + if (!(MLX5_CAP_DEV_VDPA_EMULATION(mdev, virtio_queue_type) & MLX5_VIRTIO_EMULATION_CAP_VIRTIO_QUEUE_TYPE_SPLIT)) { dev_warn(mdev->device, "missing support for split virtqueues\n"); @@ -3098,7 +3118,6 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, if (IS_ERR(ndev)) return PTR_ERR(ndev); - ndev->mvdev.mlx_features = mgtdev->mgtdev.supported_features; ndev->mvdev.max_vqs = max_vqs; mvdev = &ndev->mvdev; mvdev->mdev = mdev; @@ -3120,7 +3139,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, goto err_alloc; } - if (ndev->mvdev.mlx_features & BIT_ULL(VIRTIO_NET_F_MTU)) { + if (device_features & BIT_ULL(VIRTIO_NET_F_MTU)) { err = query_mtu(mdev, &mtu); if (err) goto err_alloc; @@ -3128,7 +3147,7 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, ndev->config.mtu = cpu_to_mlx5vdpa16(mvdev, mtu); } - if (ndev->mvdev.mlx_features & BIT_ULL(VIRTIO_NET_F_STATUS)) { + if (device_features & BIT_ULL(VIRTIO_NET_F_STATUS)) { if (get_link_state(mvdev)) ndev->config.status |= cpu_to_mlx5vdpa16(mvdev, VIRTIO_NET_S_LINK_UP); else @@ -3137,7 +3156,9 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, if (add_config->mask & (1 << VDPA_ATTR_DEV_NET_CFG_MACADDR)) { memcpy(ndev->config.mac, add_config->net.mac, ETH_ALEN); - } else { + /* No bother setting mac address in config if not going to provision _F_MAC */ + } else if ((add_config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) == 0 || + device_features & BIT_ULL(VIRTIO_NET_F_MAC)) { err = mlx5_query_nic_vport_mac_address(mdev, 0, 0, config->mac); if (err) goto err_alloc; @@ -3148,11 +3169,26 @@ static int mlx5_vdpa_dev_add(struct vdpa_mgmt_dev *v_mdev, const char *name, err = mlx5_mpfs_add_mac(pfmdev, config->mac); if (err) goto err_alloc; - - ndev->mvdev.mlx_features |= BIT_ULL(VIRTIO_NET_F_MAC); + } else if ((add_config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) == 0) { + /* + * We used to clear _F_MAC feature bit if seeing + * zero mac address when device features are not + * specifically provisioned. Keep the behaviour + * so old scripts do not break. + */ + device_features &= ~BIT_ULL(VIRTIO_NET_F_MAC); + } else if (device_features & BIT_ULL(VIRTIO_NET_F_MAC)) { + /* Don't provision zero mac address for _F_MAC */ + mlx5_vdpa_warn(&ndev->mvdev, + "No mac address provisioned?\n"); + err = -EINVAL; + goto err_alloc; } - config->max_virtqueue_pairs = cpu_to_mlx5vdpa16(mvdev, max_vqs / 2); + if (device_features & BIT_ULL(VIRTIO_NET_F_MQ)) + config->max_virtqueue_pairs = cpu_to_mlx5vdpa16(mvdev, max_vqs / 2); + + ndev->mvdev.mlx_features = device_features; mvdev->vdev.dma_dev = &mdev->pdev->dev; err = mlx5_vdpa_alloc_resources(&ndev->mvdev); if (err) @@ -3249,7 +3285,8 @@ static int mlx5v_probe(struct auxiliary_device *adev, mgtdev->mgtdev.id_table = id_table; mgtdev->mgtdev.config_attr_mask = BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MACADDR) | BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MAX_VQP) | - BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MTU); + BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MTU) | + BIT_ULL(VDPA_ATTR_DEV_FEATURES); mgtdev->mgtdev.max_supported_vqs = MLX5_CAP_DEV_VDPA_EMULATION(mdev, max_num_virtio_queues) + 1; mgtdev->mgtdev.supported_features = get_supported_features(mdev);