From nobody Tue Feb 10 15:44:55 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 D8730C77B73 for ; Sat, 3 Jun 2023 20:55:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233709AbjFCUz3 (ORCPT ); Sat, 3 Jun 2023 16:55:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232743AbjFCUzF (ORCPT ); Sat, 3 Jun 2023 16:55:05 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 52D381B1; Sat, 3 Jun 2023 13:54:56 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id 309645FD3C; Sat, 3 Jun 2023 23:54:49 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1685825689; bh=26CL2gVE0g6kFd3ZFQdsGyNdyslfGmT/ZpPrRg3+nfI=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=BKAbES7BoLlidpvw0rMtqdqB7xEXtgBURTVI82QeFolK4flgEV0OAt8pV9oMaKNMz G2bAelQ+UFia3yG6r0Sgbkso9tH0EJvEOrv3Oqdx9kU4YNtOAm5Qv66PI7Y61b5YqN FY07PX5itx9jBaOa4ekgBC+omDbdDXZCX8vRWlzXg23Rc/+/CRhW/rFg/fnVXbdFtt bRQiCz6elxUCfTWOcpa39yp30jI35ajzDyh8eIKXNbWtMyVhGPgM13+JcmFKbFaq9g oX0O+zH0GKH9U2Q/HqFll/NFiyHFYNCXjtZ0FvniLjLiViWUDJUkINLGTs4qMD5Pho aNOsouh71frMA== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Sat, 3 Jun 2023 23:54:49 +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 v4 12/17] vsock/loopback: support MSG_ZEROCOPY for transport Date: Sat, 3 Jun 2023 23:49:34 +0300 Message-ID: <20230603204939.1598818-13-AVKrasnov@sberdevices.ru> X-Mailer: git-send-email 2.35.0 In-Reply-To: <20230603204939.1598818-1-AVKrasnov@sberdevices.ru> References: <20230603204939.1598818-1-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: 2023/06/03 16:55:00 #21417531 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