From nobody Tue Feb 10 12:40:46 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 3A855C77B73 for ; Mon, 22 May 2023 07:46:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232701AbjEVHqB (ORCPT ); Mon, 22 May 2023 03:46:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34268 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231222AbjEVHo6 (ORCPT ); Mon, 22 May 2023 03:44:58 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E07E4AC; Mon, 22 May 2023 00:44:56 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id DEC455FD56; Mon, 22 May 2023 10:44:54 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1684741494; bh=26CL2gVE0g6kFd3ZFQdsGyNdyslfGmT/ZpPrRg3+nfI=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=FLz9U0xFG1yg33DEPX8QATfMVKIv+eXi/BP2X1RDoT4U2/0oDAcN9Vh6Nu6zxD0co zWMRbtT6Q+5gLnSt2xjK5y8EbCfMStT2XTSw95tzELfgIzKnNKCvmXDQR+l8UurAvj qT1il6NcQl46+LYAM5sXLQf1xn4C/KZY+/0PoMgcTbv2x2x70bSKzS13adOhrVzimY I3HfaSQIoidKxfUgdx7byM1/s4THYkAUuLJfiXPaOo/SGtJNufMkUCT2D3bgWumaSf 2Z6nPO9V9pXKHujqhlknh+rZTNUoZD9hseUYBCHl0W2/RdjFBxLq2N5ct+US75Lrxc +cUxOzUGPMhcw== 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 10:44:54 +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 12/17] vsock/loopback: support MSG_ZEROCOPY for transport Date: Mon, 22 May 2023 10:39:45 +0300 Message-ID: <20230522073950.3574171-13-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 loopback transport. Signed-off-by: Arseniy Krasnov --- net/vmw_vsock/vsock_loopback.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/net/vmw_vsock/vsock_loopback.c b/net/vmw_vsock/vsock_loopback.c index 5c6360df1f31..a2e4aeda2d92 100644 --- a/net/vmw_vsock/vsock_loopback.c +++ b/net/vmw_vsock/vsock_loopback.c @@ -47,6 +47,7 @@ static int vsock_loopback_cancel_pkt(struct vsock_sock *v= sk) } =20 static bool vsock_loopback_seqpacket_allow(u32 remote_cid); +static bool vsock_loopback_msgzerocopy_allow(void); =20 static struct virtio_transport loopback_transport =3D { .transport =3D { @@ -92,11 +93,18 @@ static struct virtio_transport loopback_transport =3D { .notify_buffer_size =3D virtio_transport_notify_buffer_size, =20 .read_skb =3D virtio_transport_read_skb, + + .msgzerocopy_allow =3D vsock_loopback_msgzerocopy_allow, }, =20 .send_pkt =3D vsock_loopback_send_pkt, }; =20 +static bool vsock_loopback_msgzerocopy_allow(void) +{ + return true; +} + static bool vsock_loopback_seqpacket_allow(u32 remote_cid) { return true; --=20 2.25.1