From 83f63753b0652a0059f1158e2d2f31fa80b4cc84 Mon Sep 17 00:00:00 2001 From: Mark McLoughlin Date: Wed, 29 Apr 2009 13:40:02 +0100 Subject: [PATCH] virtio-net: implement rx packet queueing If we don't have room to receive a packet, we return zero from virtio_net_receive() and call qemu_flush_queued_packets() as soon as space becomes available. Signed-off-by: Mark McLoughlin --- hw/virtio-net.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/hw/virtio-net.c b/hw/virtio-net.c index 6b34c5a..a3ba890 100644 --- a/hw/virtio-net.c +++ b/hw/virtio-net.c @@ -269,6 +269,9 @@ static void virtio_net_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq) static void virtio_net_handle_rx(VirtIODevice *vdev, VirtQueue *vq) { + VirtIONet *n = to_virtio_net(vdev); + + qemu_flush_queued_packets(n->vc); } static int do_virtio_net_can_receive(VirtIONet *n, int bufsize) @@ -368,7 +371,7 @@ static ssize_t virtio_net_receive(VLANClientState *vc, const uint8_t *buf, size_ size_t hdr_len, offset, i; if (!do_virtio_net_can_receive(n, size)) - return -1; + return 0; if (!receive_filter(n, buf, size)) return size; -- 2.7.4