From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52772) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gX6N9-0001NL-Jj for qemu-devel@nongnu.org; Wed, 12 Dec 2018 10:24:29 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gX6N6-0000h9-CX for qemu-devel@nongnu.org; Wed, 12 Dec 2018 10:24:27 -0500 Received: from mail-wm1-x336.google.com ([2a00:1450:4864:20::336]:40851) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gX6N5-0000Yq-Vk for qemu-devel@nongnu.org; Wed, 12 Dec 2018 10:24:24 -0500 Received: by mail-wm1-x336.google.com with SMTP id q26so6346596wmf.5 for ; Wed, 12 Dec 2018 07:24:11 -0800 (PST) Received: from 640k.lan ([93.56.166.5]) by smtp.gmail.com with ESMTPSA id u10sm15878859wrr.33.2018.12.12.07.24.09 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 12 Dec 2018 07:24:09 -0800 (PST) Sender: Paolo Bonzini From: Paolo Bonzini Date: Wed, 12 Dec 2018 16:23:09 +0100 Message-Id: <1544628195-37728-49-git-send-email-pbonzini@redhat.com> In-Reply-To: <1544628195-37728-1-git-send-email-pbonzini@redhat.com> References: <1544628195-37728-1-git-send-email-pbonzini@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [Qemu-devel] [PULL 48/54] vhost-user: support cross-endian vnet headers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org vhost-user already has a way to communicate the endianness of the guest via the vring endianness messages. The vring endianness always matches the vnet header endianness so there is no need to do anything else in the backend. Reviewed-by: Marc-André Lureau Signed-off-by: Paolo Bonzini Message-Id: <1543851204-41186-9-git-send-email-pbonzini@redhat.com> --- net/vhost-user.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/net/vhost-user.c b/net/vhost-user.c index a39f9c9..cd9659d 100644 --- a/net/vhost-user.c +++ b/net/vhost-user.c @@ -172,6 +172,17 @@ static void net_vhost_user_cleanup(NetClientState *nc) qemu_purge_queued_packets(nc); } +static int vhost_user_set_vnet_endianness(NetClientState *nc, + bool enable) +{ + /* Nothing to do. If the server supports + * VHOST_USER_PROTOCOL_F_CROSS_ENDIAN, it will get the + * vnet header endianness from there. If it doesn't, negotiation + * fails. + */ + return 0; +} + static bool vhost_user_has_vnet_hdr(NetClientState *nc) { assert(nc->info->type == NET_CLIENT_DRIVER_VHOST_USER); @@ -193,6 +204,8 @@ static NetClientInfo net_vhost_user_info = { .cleanup = net_vhost_user_cleanup, .has_vnet_hdr = vhost_user_has_vnet_hdr, .has_ufo = vhost_user_has_ufo, + .set_vnet_be = vhost_user_set_vnet_endianness, + .set_vnet_le = vhost_user_set_vnet_endianness, }; static gboolean net_vhost_user_watch(GIOChannel *chan, GIOCondition cond, -- 1.8.3.1