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[Qemu-devel] [PATCH RFC v4 15/16] virtio-net: support longer header
From: |
Cornelia Huck |
Subject: |
[Qemu-devel] [PATCH RFC v4 15/16] virtio-net: support longer header |
Date: |
Thu, 27 Nov 2014 16:16:48 +0100 |
virtio-1 devices always use num_buffers in the header, even if
mergeable rx buffers have not been negotiated.
Signed-off-by: Cornelia Huck <address@hidden>
---
hw/net/virtio-net.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index ad477bf..b31b3a4 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -380,8 +380,13 @@ static void virtio_net_set_mrg_rx_bufs(VirtIONet *n, int
mergeable_rx_bufs)
n->mergeable_rx_bufs = mergeable_rx_bufs;
- n->guest_hdr_len = n->mergeable_rx_bufs ?
- sizeof(struct virtio_net_hdr_mrg_rxbuf) : sizeof(struct
virtio_net_hdr);
+ if (n->parent_obj.guest_features[1] >> (VIRTIO_F_VERSION_1 - 32) & 1) {
+ n->guest_hdr_len = sizeof(struct virtio_net_hdr_mrg_rxbuf);
+ } else {
+ n->guest_hdr_len = n->mergeable_rx_bufs ?
+ sizeof(struct virtio_net_hdr_mrg_rxbuf) :
+ sizeof(struct virtio_net_hdr);
+ }
for (i = 0; i < n->max_queues; i++) {
nc = qemu_get_subqueue(n->nic, i);
--
1.7.9.5
- [Qemu-devel] [PATCH RFC v4 06/16] virtio: allow virtio-1 queue layout, (continued)
- [Qemu-devel] [PATCH RFC v4 06/16] virtio: allow virtio-1 queue layout, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 07/16] dataplane: allow virtio-1 devices, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 08/16] s390x/css: Add a callback for when subchannel gets disabled, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 09/16] s390x/virtio-ccw: add virtio set-revision call, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 10/16] s390x/virtio-ccw: support virtio-1 set_vq format, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 11/16] virtio: disallow late feature changes for virtio-1, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 12/16] virtio: allow to fail setting status, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 13/16] s390x/virtio-ccw: enable virtio 1.0, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 14/16] virtio-net: no writeable mac for virtio-1, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 16/16] virtio-net: enable virtio 1.0, Cornelia Huck, 2014/11/27
- [Qemu-devel] [PATCH RFC v4 15/16] virtio-net: support longer header,
Cornelia Huck <=
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Michael S. Tsirkin, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Cornelia Huck, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Michael S. Tsirkin, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Cornelia Huck, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Michael S. Tsirkin, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Cornelia Huck, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Michael S. Tsirkin, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Cornelia Huck, 2014/11/28
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Michael S. Tsirkin, 2014/11/27
- Re: [Qemu-devel] [PATCH RFC v4 00/16] qemu: towards virtio-1 host support, Cornelia Huck, 2014/11/28