From patchwork Sun Apr 23 19:26:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 13221451 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 24BF4C77B7E for ; Sun, 23 Apr 2023 19:31:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230197AbjDWTbi (ORCPT ); Sun, 23 Apr 2023 15:31:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56280 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230020AbjDWTb3 (ORCPT ); Sun, 23 Apr 2023 15:31:29 -0400 Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1E98E68; Sun, 23 Apr 2023 12:31:27 -0700 (PDT) Received: from s-lin-edge02.sberdevices.ru (localhost [127.0.0.1]) by mx.sberdevices.ru (Postfix) with ESMTP id 13D5A5FD15; Sun, 23 Apr 2023 22:31:24 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1682278284; bh=+AZ60y8UsiiQtGZ1nWzLqmHATqRhZ0dBt3UOXPrC2rk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=d/VPhNtAMtBpRA5MucHR3KjV+GUgJtfr0fqhy6CWt6Dk7XdFQs/G4sYxX0BCr1gTn hfxr6H53MR/toifCGYbnDaaWJPBtEk0QQENh1AIoHHY/PfIw93//F3/cTrVb7OywEd F98c+EduzDEKhUj97YHSauFsP9xKHZa/LgvH0auExDoiPLZ8sOuCQqVkKfXjl5aZhi 8wvYA9Ss0uHNzv+d0pI1f0Nu7B+wRQ41lQ1HBCwfs7X2oHYxG2rUdozDG23kE6lw4y IPdu7gqwQpXXMl8oJTalIAzOnaxttJK431jOEjEG9VebsbiCkGaosoCts+7XTcn+Kq YT1/Iy2FQLNbQ== Received: from S-MS-EXCH01.sberdevices.ru (S-MS-EXCH01.sberdevices.ru [172.16.1.4]) by mx.sberdevices.ru (Postfix) with ESMTP; Sun, 23 Apr 2023 22:31:24 +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 v2 10/15] vsock/virtio: support MSG_ZEROCOPY for transport Date: Sun, 23 Apr 2023 22:26:38 +0300 Message-ID: <20230423192643.1537470-11-AVKrasnov@sberdevices.ru> X-Mailer: git-send-email 2.35.0 In-Reply-To: <20230423192643.1537470-1-AVKrasnov@sberdevices.ru> References: <20230423192643.1537470-1-AVKrasnov@sberdevices.ru> MIME-Version: 1.0 X-Originating-IP: [172.16.1.6] X-ClientProxiedBy: S-MS-EXCH01.sberdevices.ru (172.16.1.4) 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: 2023/04/23 16:01:00 #21150277 X-KSMG-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Add 'msgzerocopy_allow()' callback for virtio transport. Signed-off-by: Arseniy Krasnov --- net/vmw_vsock/virtio_transport.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 1c269c3f010d..ca12db84e053 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -433,6 +433,11 @@ static void virtio_vsock_rx_done(struct virtqueue *vq) queue_work(virtio_vsock_workqueue, &vsock->rx_work); } +static bool virtio_transport_msgzerocopy_allow(void) +{ + return true; +} + static bool virtio_transport_seqpacket_allow(u32 remote_cid); static struct virtio_transport virtio_transport = { @@ -479,6 +484,8 @@ static struct virtio_transport virtio_transport = { .notify_buffer_size = virtio_transport_notify_buffer_size, .read_skb = virtio_transport_read_skb, + + .msgzerocopy_allow = virtio_transport_msgzerocopy_allow, }, .send_pkt = virtio_transport_send_pkt,