From patchwork Mon Jan 25 18:01:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vivek Goyal X-Patchwork-Id: 12043911 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 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 3136FC433E6 for ; Mon, 25 Jan 2021 18:04:57 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 8BB9D2251F for ; Mon, 25 Jan 2021 18:04:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BB9D2251F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42424 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l46ER-0003JT-Ed for qemu-devel@archiver.kernel.org; Mon, 25 Jan 2021 13:04:55 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:45222) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l46Bd-0001Q0-2H for qemu-devel@nongnu.org; Mon, 25 Jan 2021 13:02:02 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:33897) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l46BY-0006kv-Uq for qemu-devel@nongnu.org; Mon, 25 Jan 2021 13:02:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611597715; 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=IfhOBGn+oEwzTYx5DwqV0KlLI7vT/PBfxDmUKVwxCSE=; b=DnIHMxyWg3/h3zJv3epp1XbdfPv16k1SlCdSAhrW/rxjglK6446k++9RmznPxk6vfaXNhE ysAuGZi1iOo3jLbq77Pr/n7Kj4FU4+0B4zLlXtR//SZf2KCPUgrOiNhMipbn6AufcF9gkh 1+frV2dbfqTAbVaqEVP8+ZgX2QhA/oA= 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-538-UBocEi2CNGy3K7NhZKAU0A-1; Mon, 25 Jan 2021 13:01:53 -0500 X-MC-Unique: UBocEi2CNGy3K7NhZKAU0A-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5AA6C8144F3 for ; Mon, 25 Jan 2021 18:01:52 +0000 (UTC) Received: from horse.redhat.com (ovpn-116-119.rdu2.redhat.com [10.10.116.119]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2F40F6FEED; Mon, 25 Jan 2021 18:01:52 +0000 (UTC) Received: by horse.redhat.com (Postfix, from userid 10451) id 4D7CF225FD0; Mon, 25 Jan 2021 13:01:38 -0500 (EST) From: Vivek Goyal To: qemu-devel@nongnu.org, virtio-fs@redhat.com Subject: [PATCH 6/6] virtiofsd: Opt in for slave start/stop/shutdown functionality Date: Mon, 25 Jan 2021 13:01:15 -0500 Message-Id: <20210125180115.22936-7-vgoyal@redhat.com> In-Reply-To: <20210125180115.22936-1-vgoyal@redhat.com> References: <20210125180115.22936-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=vgoyal@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=vgoyal@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.255, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: marcandre.lureau@redhat.com, stefanha@redhat.com, dgilbert@redhat.com, vgoyal@redhat.com, mst@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is an opt-in feature not enabled by default. Enable it in protocol features by setting VHOST_USER_PROTOCOL_F_SLAVE_CH_START_STOP. Signed-off-by: Vivek Goyal --- tools/virtiofsd/fuse_virtio.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c index 6805d8ba01..9328c8fac6 100644 --- a/tools/virtiofsd/fuse_virtio.c +++ b/tools/virtiofsd/fuse_virtio.c @@ -103,6 +103,11 @@ static void fv_set_features(VuDev *dev, uint64_t features) { } +static uint64_t fv_get_protocol_features(VuDev *dev) +{ + return 1ULL << VHOST_USER_PROTOCOL_F_SLAVE_CH_START_STOP; +} + /* * Callback from libvhost-user if there's a new fd we're supposed to listen * to, typically a queue kick? @@ -902,6 +907,7 @@ static const VuDevIface fv_iface = { .get_features = fv_get_features, .set_features = fv_set_features, + .get_protocol_features = fv_get_protocol_features, /* Don't need process message, we've not got any at vhost-user level */ .queue_set_started = fv_queue_set_started,