From patchwork Mon May 22 07:39:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 13249954 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B12B5AD50 for ; Mon, 22 May 2023 07:44:58 +0000 (UTC) Received: from mx.sberdevices.ru (mx.sberdevices.ru [45.89.227.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 97D80B7; 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 9F6975FD55; Mon, 22 May 2023 10:44:53 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sberdevices.ru; s=mail; t=1684741493; bh=+AZ60y8UsiiQtGZ1nWzLqmHATqRhZ0dBt3UOXPrC2rk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=rEKmGgdqwb4Z1ueHvcBIXZde6vnGrvWQ3pLlxizSLsSVsmNw2P9hqpPblTugkGqwx eoROpeo384Fwmb4/K/WO/Z2sQcmDbjr3cnZQ1M/rXVzfXxdvobmzVrWTI2muyd8ayb EzuUZJ8Bp41DatiR3NQItkAj1gq4d1rImVPz0ZimPhhJSKxPKxio2BTjHlRsvdEtgu 7KBpExh2CTVh2gxjAJXG6KN65kHo1khbgXmR1djf+E/VpZlvU8xjtOzQbZIxlmXHdW YjWzplymI4krnztzgkZ1nUpLfRYQzs6vrK+n+NZehv//SNgt9q5Sz23HtipzCmnl9U k4Fpl0W69fi+Q== 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 10:44:53 +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 11/17] vsock/virtio: support MSG_ZEROCOPY for transport Date: Mon, 22 May 2023 10:39:44 +0300 Message-ID: <20230522073950.3574171-12-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> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC 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,