From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB934C38A2A for ; Fri, 8 May 2020 11:10:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C56FD21473 for ; Fri, 8 May 2020 11:10:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="AZotah2Q" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727926AbgEHLKl (ORCPT ); Fri, 8 May 2020 07:10:41 -0400 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:53598 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727917AbgEHLKj (ORCPT ); Fri, 8 May 2020 07:10:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1588936238; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wnGtQ8BrPvREsgrPw3LT2UIoKWkjXjqbLQOtszSlK+k=; b=AZotah2Q4KeqpGbM2v5MJpOi2JfxVHdy3CajZXlrxWko7YPzgl90Brv2mGR/xJSQtXFUfo w0Ner8c6qG4pm+0pgJqW0qXRun2NrOFHxMFRUYbgBrGZpF1SNCVYu69BYWkKvwt4EjN8Gd 2lyDH3AW4f0pFLMPCFPHGbGdMyFbGvA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-44-oE7G7v2SMZmk6e1RzcTDWA-1; Fri, 08 May 2020 07:10:36 -0400 X-MC-Unique: oE7G7v2SMZmk6e1RzcTDWA-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 954EB107ACCD; Fri, 8 May 2020 11:10:34 +0000 (UTC) Received: from firesoul.localdomain (unknown [10.40.208.11]) by smtp.corp.redhat.com (Postfix) with ESMTP id BFF6A2E045; Fri, 8 May 2020 11:10:28 +0000 (UTC) Received: from [192.168.42.3] (localhost [IPv6:::1]) by firesoul.localdomain (Postfix) with ESMTP id 9E835300020FB; Fri, 8 May 2020 13:10:27 +0200 (CEST) Subject: [PATCH net-next v3 20/33] vhost_net: also populate XDP frame size From: Jesper Dangaard Brouer To: sameehj@amazon.com Cc: Jesper Dangaard Brouer , netdev@vger.kernel.org, bpf@vger.kernel.org, =?utf-8?q?Toke_H=C3=B8iland-J=C3=B8rgensen?= , Daniel Borkmann , Alexei Starovoitov , "David S. Miller" , John Fastabend , Alexander Duyck , Jeff Kirsher , David Ahern , Ilias Apalodimas , Lorenzo Bianconi , Saeed Mahameed , Tariq Toukan Date: Fri, 08 May 2020 13:10:27 +0200 Message-ID: <158893622757.2321140.18299712455321031398.stgit@firesoul> In-Reply-To: <158893607924.2321140.16117992313983615627.stgit@firesoul> References: <158893607924.2321140.16117992313983615627.stgit@firesoul> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org In vhost_net_build_xdp() the 'buf' that gets queued via an xdp_buff have embedded a struct tun_xdp_hdr (located at xdp->data_hard_start) which contains the buffer length 'buflen' (with tailroom for skb_shared_info). Also storing this buflen in xdp->frame_sz, does not obsolete struct tun_xdp_hdr, as it also contains a struct virtio_net_hdr with other information. Cc: Jason Wang Signed-off-by: Jesper Dangaard Brouer Acked-by: Michael S. Tsirkin Acked-by: Jason Wang --- drivers/vhost/net.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 2927f02cc7e1..516519dcc8ff 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -747,6 +747,7 @@ static int vhost_net_build_xdp(struct vhost_net_virtqueue *nvq, xdp->data = buf + pad; xdp->data_end = xdp->data + len; hdr->buflen = buflen; + xdp->frame_sz = buflen; --net->refcnt_bias; alloc_frag->offset += buflen;