virtio_net: v1.0 endianness

Based on patches by Rusty Russell, Cornelia Huck.
Note: more code changes are needed for 1.0 support
(due to different header size).
So we don't advertize support for 1.0 yet.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 8 insertions, 7 deletions

diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h
index 172a7f00780c..b5f1677b291c 100644
--- a/include/uapi/linux/virtio_net.h
+++ b/include/uapi/linux/virtio_net.h
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
+#include <linux/virtio_types.h>
 #include <linux/if_ether.h>
 
 /* The feature bitmap for virtio net */
@@ -84,17 +85,17 @@ struct virtio_net_hdr {
 #define VIRTIO_NET_HDR_GSO_TCPV6        4       // GSO frame, IPv6 TCP
 #define VIRTIO_NET_HDR_GSO_ECN          0x80    // TCP has ECN set
         __u8 gso_type;
-        __u16 hdr_len;          /* Ethernet + IP + tcp/udp hdrs */
-        __u16 gso_size;         /* Bytes to append to hdr_len per frame */
-        __u16 csum_start;       /* Position to start checksumming from */
-        __u16 csum_offset;      /* Offset after that to place checksum */
+        __virtio16 hdr_len;             /* Ethernet + IP + tcp/udp hdrs */
+        __virtio16 gso_size;            /* Bytes to append to hdr_len per frame */
+        __virtio16 csum_start;  /* Position to start checksumming from */
+        __virtio16 csum_offset; /* Offset after that to place checksum */
 };
 
 /* This is the version of the header to use when the MRG_RXBUF
  * feature has been negotiated. */
 struct virtio_net_hdr_mrg_rxbuf {
         struct virtio_net_hdr hdr;
-        __u16 num_buffers;      /* Number of merged rx buffers */
+        __virtio16 num_buffers; /* Number of merged rx buffers */
 };
 
 /*
@@ -149,7 +150,7 @@ typedef __u8 virtio_net_ctrl_ack;
  * VIRTIO_NET_F_CTRL_MAC_ADDR feature is available.
  */
 struct virtio_net_ctrl_mac {
-        __u32 entries;
+        __virtio32 entries;
         __u8 macs[][ETH_ALEN];
 } __attribute__((packed));
 
@@ -193,7 +194,7 @@ struct virtio_net_ctrl_mac {
  * specified.
  */
 struct virtio_net_ctrl_mq {
-        __u16 virtqueue_pairs;
+        __virtio16 virtqueue_pairs;
 };
 
 #define VIRTIO_NET_CTRL_MQ   4