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-rw-r--r--include/standard-headers/linux/virtio_net.h54
1 files changed, 25 insertions, 29 deletions
diff --git a/include/standard-headers/linux/virtio_net.h b/include/standard-headers/linux/virtio_net.h
index 95faf67b48..3209c90219 100644
--- a/include/standard-headers/linux/virtio_net.h
+++ b/include/standard-headers/linux/virtio_net.h
@@ -74,39 +74,12 @@ struct virtio_net_config {
uint16_t max_virtqueue_pairs;
} QEMU_PACKED;
-#ifndef VIRTIO_NET_NO_LEGACY
-/* This header comes first in the scatter-gather list.
- * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
- * be the first element of the scatter-gather list. If you don't
- * specify GSO or CSUM features, you can simply ignore the header. */
-struct virtio_net_hdr {
-#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 // Use csum_start, csum_offset
-#define VIRTIO_NET_HDR_F_DATA_VALID 2 // Csum is valid
- uint8_t flags;
-#define VIRTIO_NET_HDR_GSO_NONE 0 // Not a GSO frame
-#define VIRTIO_NET_HDR_GSO_TCPV4 1 // GSO frame, IPv4 TCP (TSO)
-#define VIRTIO_NET_HDR_GSO_UDP 3 // GSO frame, IPv4 UDP (UFO)
-#define VIRTIO_NET_HDR_GSO_TCPV6 4 // GSO frame, IPv6 TCP
-#define VIRTIO_NET_HDR_GSO_ECN 0x80 // TCP has ECN set
- uint8_t gso_type;
- __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;
- __virtio16 num_buffers; /* Number of merged rx buffers */
-};
-#else /* ... VIRTIO_NET_NO_LEGACY */
/*
* This header comes first in the scatter-gather list. If you don't
* specify GSO or CSUM features, you can simply ignore the header.
*
- * This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf.
+ * This is bitwise-equivalent to the legacy struct virtio_net_hdr_mrg_rxbuf,
+ * only flattened.
*/
struct virtio_net_hdr_v1 {
#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 /* Use csum_start, csum_offset */
@@ -124,6 +97,29 @@ struct virtio_net_hdr_v1 {
__virtio16 csum_offset; /* Offset after that to place checksum */
__virtio16 num_buffers; /* Number of merged rx buffers */
};
+
+#ifndef VIRTIO_NET_NO_LEGACY
+/* This header comes first in the scatter-gather list.
+ * For legacy virtio, if VIRTIO_F_ANY_LAYOUT is not negotiated, it must
+ * be the first element of the scatter-gather list. If you don't
+ * specify GSO or CSUM features, you can simply ignore the header. */
+struct virtio_net_hdr {
+ /* See VIRTIO_NET_HDR_F_* */
+ uint8_t flags;
+ /* See VIRTIO_NET_HDR_GSO_* */
+ uint8_t gso_type;
+ __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;
+ __virtio16 num_buffers; /* Number of merged rx buffers */
+};
#endif /* ...VIRTIO_NET_NO_LEGACY */
/*