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From e892a0cc154fecadbd209c4cac1ebcc9208173d9 Mon Sep 17 00:00:00 2001
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From: Amos Kong <akong@redhat.com>
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Date: Mon, 4 Aug 2014 04:12:07 +0200
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Subject: [PATCH 1/4] virtio-net: Do not filter VLANs without F_CTRL_VLAN
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Message-id: <1407125528-27862-2-git-send-email-akong@redhat.com>
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Patchwork-id: 60415
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O-Subject: [RHEL-7.1/7.0.z qemu-kvm PATCH 1/2] virtio-net: Do not filter VLANs without F_CTRL_VLAN
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Bugzilla: 1065724
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RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
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RH-Acked-by: Xiao Wang <jasowang@redhat.com>
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RH-Acked-by: Vlad Yasevich <vyasevic@redhat.com>
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From: Stefan Fritsch <sf@sfritsch.de>
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If VIRTIO_NET_F_CTRL_VLAN is not negotiated, do not filter out all
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VLAN-tagged packets but send them to the guest.
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This fixes VLANs with OpenBSD guests (and probably NetBSD, too, because
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the OpenBSD driver started as a port from NetBSD).
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Signed-off-by: Stefan Fritsch <sf@sfritsch.de>
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Signed-off-by: Amos Kong <akong@redhat.com>
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Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit 0b1eaa8803e680de9a05727355dfe3d306b81e17)
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---
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hw/net/virtio-net.c | 6 ++++++
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1 files changed, 6 insertions(+), 0 deletions(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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hw/net/virtio-net.c | 6 ++++++
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1 files changed, 6 insertions(+), 0 deletions(-)
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diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
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index f72be9f..8e58139 100644
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--- a/hw/net/virtio-net.c
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+++ b/hw/net/virtio-net.c
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@@ -490,6 +490,12 @@ static void virtio_net_set_features(VirtIODevice *vdev, uint32_t features)
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}
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vhost_net_ack_features(tap_get_vhost_net(nc->peer), features);
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}
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+
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+ if ((1 << VIRTIO_NET_F_CTRL_VLAN) & features) {
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+ memset(n->vlans, 0, MAX_VLAN >> 3);
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+ } else {
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+ memset(n->vlans, 0xff, MAX_VLAN >> 3);
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+ }
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}
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static int virtio_net_handle_rx_mode(VirtIONet *n, uint8_t cmd,
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--
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1.7.1
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