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 smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F246DECAAD8 for ; Thu, 22 Sep 2022 02:43:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 7266E40509; Thu, 22 Sep 2022 02:43:35 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 7266E40509 Authentication-Results: smtp4.osuosl.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=AEzRNdrp X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id eapaqRmTbGKE; Thu, 22 Sep 2022 02:43:34 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [IPv6:2605:bc80:3010:104::8cd3:938]) by smtp4.osuosl.org (Postfix) with ESMTPS id 964DB404A5; Thu, 22 Sep 2022 02:43:33 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 964DB404A5 Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 70A83C0032; Thu, 22 Sep 2022 02:43:33 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id C99B3C002D for ; Thu, 22 Sep 2022 02:43:32 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id A432F8124B for ; Thu, 22 Sep 2022 02:43:32 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org A432F8124B Authentication-Results: smtp1.osuosl.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=AEzRNdrp X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id WGxGbND6EyTA for ; Thu, 22 Sep 2022 02:43:32 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org C86C780E07 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by smtp1.osuosl.org (Postfix) with ESMTPS id C86C780E07 for ; Thu, 22 Sep 2022 02:43:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1663814610; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=voAQSkJZsqEcFHoE05kFOKlNJJihIbhmQEwAm2HrkYI=; b=AEzRNdrpJjGSXJ7D3Pn9a+DbRazCuJLUZtxmKnLQ3A6FMrZdO546MF7ip69lEqqZ1A/vZb D13C1DAOuA5F0B6BUgCBQw7zD62mgFgLIsoFspVCzLNdIZHyA8C+QLYk/fX4PUf5H7cQlz I12WpBjHwUBCPySBYLmbYPJEK6bCaa8= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-351-vpxGZcnCPNGHGUaF0l8ATQ-1; Wed, 21 Sep 2022 22:43:29 -0400 X-MC-Unique: vpxGZcnCPNGHGUaF0l8ATQ-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 950CD1C05AA7; Thu, 22 Sep 2022 02:43:28 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-82.pek2.redhat.com [10.72.13.82]) by smtp.corp.redhat.com (Postfix) with ESMTP id A43E4140EBF3; Thu, 22 Sep 2022 02:43:22 +0000 (UTC) From: Jason Wang To: mst@redhat.com, jasowang@redhat.com Subject: [PATCH V2 1/3] vdpa: device feature provisioning Date: Thu, 22 Sep 2022 10:43:03 +0800 Message-Id: <20220922024305.1718-2-jasowang@redhat.com> In-Reply-To: <20220922024305.1718-1-jasowang@redhat.com> References: <20220922024305.1718-1-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Cc: lulu@redhat.com, xieyongji@bytedance.com, linux-kernel@vger.kernel.org, gdawar@xilinx.com, virtualization@lists.linux-foundation.org, eperezma@redhat.com, wuzongyong@linux.alibaba.com, elic@nvidia.com, lingshan.zhu@intel.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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" This patch allows the device features to be provisioned through netlink. A new attribute is introduced to allow the userspace to pass a 64bit device features during device adding. This provides several advantages: - Allow to provision a subset of the features to ease the cross vendor live migration. - Better debug-ability for vDPA framework and parent. Reviewed-by: Eli Cohen Signed-off-by: Jason Wang --- drivers/vdpa/vdpa.c | 5 +++++ include/linux/vdpa.h | 1 + include/uapi/linux/vdpa.h | 2 ++ 3 files changed, 8 insertions(+) diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index c06c02704461..278e26bfa492 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -600,6 +600,11 @@ static int vdpa_nl_cmd_dev_add_set_doit(struct sk_buff *skb, struct genl_info *i } config.mask |= BIT_ULL(VDPA_ATTR_DEV_NET_CFG_MAX_VQP); } + if (nl_attrs[VDPA_ATTR_DEV_FEATURES]) { + config.device_features = + nla_get_u64(nl_attrs[VDPA_ATTR_DEV_FEATURES]); + config.mask |= BIT_ULL(VDPA_ATTR_DEV_FEATURES); + } /* Skip checking capability if user didn't prefer to configure any * device networking attributes. It is likely that user might have used diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index d282f464d2f1..6d0f5e4e82c2 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -104,6 +104,7 @@ struct vdpa_iova_range { }; struct vdpa_dev_set_config { + u64 device_features; struct { u8 mac[ETH_ALEN]; u16 mtu; diff --git a/include/uapi/linux/vdpa.h b/include/uapi/linux/vdpa.h index 25c55cab3d7c..9dc855f37c59 100644 --- a/include/uapi/linux/vdpa.h +++ b/include/uapi/linux/vdpa.h @@ -52,6 +52,8 @@ enum vdpa_attr { VDPA_ATTR_DEV_VENDOR_ATTR_NAME, /* string */ VDPA_ATTR_DEV_VENDOR_ATTR_VALUE, /* u64 */ + VDPA_ATTR_DEV_FEATURES, /* u64 */ + /* new attributes must be added above here */ VDPA_ATTR_MAX, }; -- 2.25.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization