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-rw-r--r--include/hw/i386/pc.h4
-rw-r--r--include/hw/virtio/virtio-net.h13
2 files changed, 17 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 2bd7090248..93d8357cec 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -217,6 +217,10 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t);
.property = "vectors",\
/* DEV_NVECTORS_UNSPECIFIED as a uint32_t string */\
.value = stringify(0xFFFFFFFF),\
+ },{ \
+ .driver = "virtio-net-pci", \
+ .property = "ctrl_guest_offloads", \
+ .value = "off", \
},{\
.driver = "e1000",\
.property = "romfile",\
diff --git a/include/hw/virtio/virtio-net.h b/include/hw/virtio/virtio-net.h
index beeead7a1a..b315ac91a4 100644
--- a/include/hw/virtio/virtio-net.h
+++ b/include/hw/virtio/virtio-net.h
@@ -31,6 +31,8 @@
/* The feature bitmap for virtio net */
#define VIRTIO_NET_F_CSUM 0 /* Host handles pkts w/ partial csum */
#define VIRTIO_NET_F_GUEST_CSUM 1 /* Guest handles pkts w/ partial csum */
+#define VIRTIO_NET_F_CTRL_GUEST_OFFLOADS 2 /* Control channel offload
+ * configuration support */
#define VIRTIO_NET_F_MAC 5 /* Host has given MAC address. */
#define VIRTIO_NET_F_GSO 6 /* Host handles pkts w/ any GSO type */
#define VIRTIO_NET_F_GUEST_TSO4 7 /* Guest can handle TSOv4 in. */
@@ -190,6 +192,7 @@ typedef struct VirtIONet {
size_t config_size;
char *netclient_name;
char *netclient_type;
+ uint64_t curr_guest_offloads;
} VirtIONet;
#define VIRTIO_NET_CTRL_MAC 1
@@ -229,6 +232,15 @@ struct virtio_net_ctrl_mq {
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN 1
#define VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MAX 0x8000
+/*
+ * Control network offloads
+ *
+ * Dynamic offloads are available with the
+ * VIRTIO_NET_F_CTRL_GUEST_OFFLOADS feature bit.
+ */
+#define VIRTIO_NET_CTRL_GUEST_OFFLOADS 5
+ #define VIRTIO_NET_CTRL_GUEST_OFFLOADS_SET 0
+
#define DEFINE_VIRTIO_NET_FEATURES(_state, _field) \
DEFINE_VIRTIO_COMMON_FEATURES(_state, _field), \
DEFINE_PROP_BIT("csum", _state, _field, VIRTIO_NET_F_CSUM, true), \
@@ -249,6 +261,7 @@ struct virtio_net_ctrl_mq {
DEFINE_PROP_BIT("ctrl_vlan", _state, _field, VIRTIO_NET_F_CTRL_VLAN, true), \
DEFINE_PROP_BIT("ctrl_rx_extra", _state, _field, VIRTIO_NET_F_CTRL_RX_EXTRA, true), \
DEFINE_PROP_BIT("ctrl_mac_addr", _state, _field, VIRTIO_NET_F_CTRL_MAC_ADDR, true), \
+ DEFINE_PROP_BIT("ctrl_guest_offloads", _state, _field, VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, true), \
DEFINE_PROP_BIT("mq", _state, _field, VIRTIO_NET_F_MQ, false)
#define DEFINE_VIRTIO_NET_PROPERTIES(_state, _field) \