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 X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0579EC433DB for ; Tue, 16 Feb 2021 09:45:18 +0000 (UTC) Received: from fraxinus.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 mail.kernel.org (Postfix) with ESMTPS id 964DC64DCF for ; Tue, 16 Feb 2021 09:45:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 964DC64DCF Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 50D0F8495A; Tue, 16 Feb 2021 09:45:17 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ay382LWZi9wM; Tue, 16 Feb 2021 09:45:16 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id E247884837; Tue, 16 Feb 2021 09:45:16 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id CC54EC0893; Tue, 16 Feb 2021 09:45:16 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 55FDAC013A for ; Tue, 16 Feb 2021 09:45:15 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 456EC84917 for ; Tue, 16 Feb 2021 09:45:15 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id UTBp1CFSIBRO for ; Tue, 16 Feb 2021 09:45:14 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by fraxinus.osuosl.org (Postfix) with ESMTPS id 72CF184947 for ; Tue, 16 Feb 2021 09:45:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613468713; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=zgJXmECmOauhfYDJPw4bn7OxQRQZ97Yc1PJaarzr/ps=; b=hoDqqolm4UfyS3nv8CooXswFswMsOF159g5b0hlFHIVXAiJE1vaf3Q+Tv8JxGhJ0dQAtiv 6sDMdUGFEKKyM/yXoiJIbYpibTksZxyyIDnv1N/PAb02J+RKhrw449PyiPGDwlcDW7+8RV DlGtuEryGZen25NdIZFbyFbw5A82OuA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-87-VmUvdcoDMjK1N8CpeqbGyA-1; Tue, 16 Feb 2021 04:45:11 -0500 X-MC-Unique: VmUvdcoDMjK1N8CpeqbGyA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EF698100AA21; Tue, 16 Feb 2021 09:45:09 +0000 (UTC) Received: from steredhat.redhat.com (ovpn-113-212.ams2.redhat.com [10.36.113.212]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9B2F35D9C0; Tue, 16 Feb 2021 09:45:08 +0000 (UTC) From: Stefano Garzarella To: virtualization@lists.linux-foundation.org Subject: [RFC PATCH 03/10] vdpa: add vdpa_set_config() helper Date: Tue, 16 Feb 2021 10:44:47 +0100 Message-Id: <20210216094454.82106-4-sgarzare@redhat.com> In-Reply-To: <20210216094454.82106-1-sgarzare@redhat.com> References: <20210216094454.82106-1-sgarzare@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, "Michael S. Tsirkin" 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" Let's add a function similar to vpda_get_config() to check the 'offset' and 'len' parameters, call the set_config() device callback, and return the amount of bytes written. Signed-off-by: Stefano Garzarella --- include/linux/vdpa.h | 2 ++ drivers/vdpa/vdpa.c | 16 ++++++++++++++++ 2 files changed, 18 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 8a679c98f8b1..562fcd14f4b5 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -334,6 +334,8 @@ static inline int vdpa_set_features(struct vdpa_device *vdev, u64 features) int vdpa_get_config(struct vdpa_device *vdev, unsigned int offset, void *buf, unsigned int len); +int vdpa_set_config(struct vdpa_device *vdev, unsigned int offset, + const void *buf, unsigned int len); /** * vdpa_mgmtdev_ops - vdpa device ops diff --git a/drivers/vdpa/vdpa.c b/drivers/vdpa/vdpa.c index 9ed6c779c63c..825afc690a7e 100644 --- a/drivers/vdpa/vdpa.c +++ b/drivers/vdpa/vdpa.c @@ -86,6 +86,22 @@ int vdpa_get_config(struct vdpa_device *vdev, unsigned int offset, } EXPORT_SYMBOL_GPL(vdpa_get_config); +int vdpa_set_config(struct vdpa_device *vdev, unsigned int offset, + const void *buf, unsigned int len) +{ + const struct vdpa_config_ops *ops = vdev->config; + int bytes_set; + + bytes_set = vdpa_config_size_wrap(vdev, offset, len); + if (bytes_set <= 0) + return bytes_set; + + ops->set_config(vdev, offset, buf, bytes_set); + + return bytes_set; +} +EXPORT_SYMBOL_GPL(vdpa_set_config); + static void vdpa_release_dev(struct device *d) { struct vdpa_device *vdev = dev_to_vdpa(d); -- 2.29.2 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization