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 6A22CC4361B for ; Tue, 15 Dec 2020 14:45:20 +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 07C5D223D6 for ; Tue, 15 Dec 2020 14:45:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 07C5D223D6 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 B778E86E3E; Tue, 15 Dec 2020 14:45:19 +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 FT2KRZr4V9B6; Tue, 15 Dec 2020 14:45:19 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 5844386E19; Tue, 15 Dec 2020 14:45:19 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 507CAC0893; Tue, 15 Dec 2020 14:45:19 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) by lists.linuxfoundation.org (Postfix) with ESMTP id 185B1C013B for ; Tue, 15 Dec 2020 14:45:18 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by silver.osuosl.org (Postfix) with ESMTP id EEF322150A for ; Tue, 15 Dec 2020 14:45:17 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 8jK9JyefWL9H for ; Tue, 15 Dec 2020 14:45:17 +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 [63.128.21.124]) by silver.osuosl.org (Postfix) with ESMTPS id 0C367207B0 for ; Tue, 15 Dec 2020 14:45:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1608043516; 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=9F5ax3wxxKnYiaE8zVcc5355IGbGaIsPxUJUJWPdgeU=; b=jEHMQdNxByhe0NuCbtBzEZHtWo1LVlya/A9W3WRxhzSMvlM6WMFFo+cO91HaKEp24EQzog V5S0ZtcrelF6NW6bX6fVmJzsj0I4LEKU2T3IpdCd5srkFdiMI8vfkmhShZYsZIKZ77s0cr 2N3w9doOBLqjUfPzYgUO4K50L8+Xih4= 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-52-vTW-QsZwNDiQt6mv3qkHiA-1; Tue, 15 Dec 2020 09:45:14 -0500 X-MC-Unique: vTW-QsZwNDiQt6mv3qkHiA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 1C1D6801AC1; Tue, 15 Dec 2020 14:45:13 +0000 (UTC) Received: from steredhat.redhat.com (ovpn-115-49.ams2.redhat.com [10.36.115.49]) by smtp.corp.redhat.com (Postfix) with ESMTP id E426B60C0F; Tue, 15 Dec 2020 14:45:08 +0000 (UTC) From: Stefano Garzarella To: virtualization@lists.linux-foundation.org Subject: [PATCH v4 13/18] vdpa_sim: add set_config callback in vdpasim_dev_attr Date: Tue, 15 Dec 2020 15:42:51 +0100 Message-Id: <20201215144256.155342-14-sgarzare@redhat.com> In-Reply-To: <20201215144256.155342-1-sgarzare@redhat.com> References: <20201215144256.155342-1-sgarzare@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Cc: Laurent Vivier , Max Gurtovoy , "Michael S. Tsirkin" , Randy Dunlap , linux-kernel@vger.kernel.org, Shahaf Shuler , Stefan Hajnoczi , Eli Cohen , Oren Duer 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" The set_config callback can be used by the device to parse the config structure modified by the driver. The callback will be invoked, if set, in vdpasim_set_config() after copying bytes from caller buffer into vdpasim->config buffer. Acked-by: Jason Wang Signed-off-by: Stefano Garzarella --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index 5eadcd19ab6f..e219aa852ef8 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -78,6 +78,7 @@ struct vdpasim_dev_attr { work_func_t work_fn; void (*get_config)(struct vdpasim *vdpasim, void *config); + void (*set_config)(struct vdpasim *vdpasim, const void *config); }; /* State of each vdpasim device */ @@ -606,7 +607,15 @@ static void vdpasim_get_config(struct vdpa_device *vdpa, unsigned int offset, static void vdpasim_set_config(struct vdpa_device *vdpa, unsigned int offset, const void *buf, unsigned int len) { - /* No writable config supportted by vdpasim */ + struct vdpasim *vdpasim = vdpa_to_sim(vdpa); + + if (offset + len > vdpasim->dev_attr.config_size) + return; + + memcpy(vdpasim->config + offset, buf, len); + + if (vdpasim->dev_attr.set_config) + vdpasim->dev_attr.set_config(vdpasim, vdpasim->config); } static u32 vdpasim_get_generation(struct vdpa_device *vdpa) -- 2.26.2 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization