From nobody Mon Feb 9 19:38:05 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 93772C77B73 for ; Mon, 22 May 2023 07:45:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232658AbjEVHpA (ORCPT ); Mon, 22 May 2023 03:45:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34242 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232679AbjEVHo4 (ORCPT ); Mon, 22 May 2023 03:44:56 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3A1E6AC; Mon, 22 May 2023 00:44:55 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id 710585FD54; Mon, 22 May 2023 10:44:51 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1684741491; bh=qcm1rcspds6nBbsYu4uQ/1LCrKuUtxLK5dK/r7j7bP0=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=hNi+O0YpqXs+X+aAEOSxILxwbo20X1nPmnjySCh14oMTUDskE7sEmWLTIpzG7OnGD Q/NLNSehgteTrylb4hZb8gwDF2RwFR8aW3dhkYTcUWHcdiD55WGcPUTOJi0qeiLTfK brvTnlG7qfwQGdZyqDPn3uY/uTNQO0XlY7Owj06EK7kT4eyPv0zr/dwPns7Hl6dZMR yYHyq7eNDc3cTaWPRZpIq3plZtJMzi86RU5Fy8LxmnU6DDR/+YmZpj0lH1RaY+Timc Tsr820Z+37jj3MiCjtgsVPAMprF+EUUZgV5PpAAlT8NBK/ud6DNUCluV+9goe+9Uoo 1509GwAtG4jSQ== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Mon, 22 May 2023 10:44:51 +0300 (MSK) From: Arseniy Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Michael S. Tsirkin" , Jason Wang , Bobby Eshleman CC: , , , , , , , Arseniy Krasnov Subject: [RFC PATCH v3 10/17] vhost/vsock: support MSG_ZEROCOPY for transport Date: Mon, 22 May 2023 10:39:43 +0300 Message-ID: <20230522073950.3574171-11-AVKrasnov@sberdevices.ru> X-Mailer: git-send-email 2.35.0 In-Reply-To: <20230522073950.3574171-1-AVKrasnov@sberdevices.ru> References: <20230522073950.3574171-1-AVKrasnov@sberdevices.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH02.sberdevices.ru (172.16.1.5) To S-MS-EXCH01.sberdevices.ru (172.16.1.4) X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2023/05/22 04:49:00 #21364689 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add 'msgzerocopy_allow()' callback for vhost transport. Signed-off-by: Arseniy Krasnov --- drivers/vhost/vsock.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index b254aa4b756a..318866713ef7 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -396,6 +396,11 @@ static bool vhost_vsock_more_replies(struct vhost_vsoc= k *vsock) return val < vq->num; } =20 +static bool vhost_transport_msgzerocopy_allow(void) +{ + return true; +} + static bool vhost_transport_seqpacket_allow(u32 remote_cid); =20 static struct virtio_transport vhost_transport =3D { @@ -442,6 +447,7 @@ static struct virtio_transport vhost_transport =3D { .notify_buffer_size =3D virtio_transport_notify_buffer_size, =20 .read_skb =3D virtio_transport_read_skb, + .msgzerocopy_allow =3D vhost_transport_msgzerocopy_allow, }, =20 .send_pkt =3D vhost_transport_send_pkt, --=20 2.25.1