From patchwork Tue Jun 11 05:32:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cindy Lu X-Patchwork-Id: 13693133 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (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 BF98A171083 for ; Tue, 11 Jun 2024 05:32:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718083976; cv=none; b=e7KdndVRVqOLZ1GdYKfsPw6Jx0mPYtFEvRU3PAQMK4D2OUnY3r0KQAJ0qesPV1W02yDifyDciC/7gxIW/LUGeniD/MAUY0Nw4U6hexdvz1dE0Z9sT/99m+DjqkhhTOf0kOKJnMQBJ86lMQr5fDTU6e8wNBFBU7MyEJtu2ReN9Vg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718083976; c=relaxed/simple; bh=RxfXH2ZFb7Id4zlG5fVIVyfD9EzHBt+idquBieWGYcw=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=MY8z1Lsce0iXlalGPc9IVup+AsQo11ql/SmKV0pMtTDycF7flWyxkjDfK9DUnQJytR85IyM8MD2TMTcMEGA+ghGCjt/iLI1lh1LPcgTN1+sHO9soqlhlijusluEP8WC34Nl6Z8j4G+oPK3PHsBm6OChE0o7FnDXODwuYAINZVBU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=b3NbzL7z; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="b3NbzL7z" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1718083973; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=rjMLPcN4lf4hILs75qKFb2X8tj4fMICRG7d9Mi8k40Q=; b=b3NbzL7zyEWC28fAQjEA1wnAZKX+AwcCcWSaBOrpUrTXOU+NQcJ9gpYLHqLvVQcgWGy4kC OqK6y44uZh/h7PzmRiX8wAaCrbcwVqhs4hbd4bkQHWFoXIFrAzfuwn+8yjkBFuiH5Ck3MS UFVml2I059cfcibEoT9JodiQr6p91vA= Received: from mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-111-_V8BYhHVPAey9ah6ri3acA-1; Tue, 11 Jun 2024 01:32:50 -0400 X-MC-Unique: _V8BYhHVPAey9ah6ri3acA-1 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 199A719560BD; Tue, 11 Jun 2024 05:32:49 +0000 (UTC) Received: from server.redhat.com (unknown [10.72.112.77]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 7CAC11956048; Tue, 11 Jun 2024 05:32:42 +0000 (UTC) From: Cindy Lu To: lulu@redhat.com, dtatulea@nvidia.com, mst@redhat.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 1/2] vdpa: support set mac address from vdpa tool Date: Tue, 11 Jun 2024 13:32:32 +0800 Message-ID: <20240611053239.516996-1-lulu@redhat.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Add new UAPI to support the mac address from vdpa tool Function vdpa_nl_cmd_dev_config_set_doit() will get the MAC address from the vdpa tool and then set it to the device. The usage is: vdpa dev set name vdpa_name mac **:**:**:**:**:** Here is sample: root@L1# vdpa -jp dev config show vdpa0 { "config": { "vdpa0": { "mac": "82:4d:e9:5d:d7:e6", "link ": "up", "link_announce ": false, "mtu": 1500 } } } root@L1# vdpa dev set name vdpa0 mac 00:11:22:33:44:55 root@L1# vdpa -jp dev config show vdpa0 { "config": { "vdpa0": { "mac": "00:11:22:33:44:55", "link ": "up", "link_announce ": false, "mtu": 1500 } } } Signed-off-by: Cindy Lu --- drivers/vdpa/vdpa.c | 71 +++++++++++++++++++++++++++++++++++++++ include/linux/vdpa.h | 2 ++ include/uapi/linux/vdpa.h | 1 + 3 files changed, 74 insertions(+) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index a7612e0783b3..347ae6e7749d 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -1149,6 +1149,72 @@ static int vdpa_nl_cmd_dev_config_get_doit(struct sk_buff *skb, struct genl_info return err; } +static int vdpa_nl_cmd_dev_config_set_doit(struct sk_buff *skb, + struct genl_info *info) +{ + struct vdpa_dev_set_config set_config = {}; + struct nlattr **nl_attrs = info->attrs; + struct vdpa_mgmt_dev *mdev; + const u8 *macaddr; + const char *name; + int err = 0; + struct device *dev; + struct vdpa_device *vdev; + + if (!info->attrs[VDPA_ATTR_DEV_NAME]) + return -EINVAL; + + name = nla_data(info->attrs[VDPA_ATTR_DEV_NAME]); + + down_write(&vdpa_dev_lock); + dev = bus_find_device(&vdpa_bus, NULL, name, 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, + "Fail to find the specified management device"); + err = -EINVAL; + goto mdev_err; + } + mdev = vdev->mdev; + if (nl_attrs[VDPA_ATTR_DEV_NET_CFG_MACADDR]) { + if (!(mdev->supported_features & BIT_ULL(VIRTIO_NET_F_MAC))) { + NL_SET_ERR_MSG_FMT_MOD( + info->extack, + "Missing features 0x%llx for provided attributes", + BIT_ULL(VIRTIO_NET_F_MAC)); + err = -EINVAL; + goto mdev_err; + } + macaddr = nla_data(nl_attrs[VDPA_ATTR_DEV_NET_CFG_MACADDR]); + memcpy(set_config.net.mac, macaddr, ETH_ALEN); + set_config.mask |= BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MACADDR); + if (mdev->ops->set_mac) { + err = mdev->ops->set_mac(mdev, vdev, &set_config); + } else { + NL_SET_ERR_MSG_FMT_MOD( + info->extack, + "%s device not support set mac address ", name); + } + + } else { + NL_SET_ERR_MSG_FMT_MOD(info->extack, + "%s device not support this config ", + name); + } + +mdev_err: + put_device(dev); +dev_err: + up_write(&vdpa_dev_lock); + return err; +} + static int vdpa_dev_config_dump(struct device *dev, void *data) { struct vdpa_device *vdev = container_of(dev, struct vdpa_device, dev); @@ -1285,6 +1351,11 @@ static const struct genl_ops vdpa_nl_ops[] = { .doit = vdpa_nl_cmd_dev_stats_get_doit, .flags = GENL_ADMIN_PERM, }, + { + .cmd = VDPA_CMD_DEV_CONFIG_SET, + .doit = vdpa_nl_cmd_dev_config_set_doit, + .flags = GENL_ADMIN_PERM, + }, }; static struct genl_family vdpa_nl_family __ro_after_init = { diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index db15ac07f8a6..c97f4f1da753 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -581,6 +581,8 @@ struct vdpa_mgmtdev_ops { int (*dev_add)(struct vdpa_mgmt_dev *mdev, const char *name, const struct vdpa_dev_set_config *config); void (*dev_del)(struct vdpa_mgmt_dev *mdev, struct vdpa_device *dev); + int (*set_mac)(struct vdpa_mgmt_dev *mdev, struct vdpa_device *dev, + const struct vdpa_dev_set_config *config); }; /** diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 54b649ab0f22..53f249fb26bc 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -19,6 +19,7 @@ enum vdpa_command { VDPA_CMD_DEV_GET, /* can dump */ VDPA_CMD_DEV_CONFIG_GET, /* can dump */ VDPA_CMD_DEV_VSTATS_GET, + VDPA_CMD_DEV_CONFIG_SET, }; enum vdpa_attr {