diff options
Diffstat (limited to 'include/linux/virtio_net.h')
-rw-r--r-- | include/linux/virtio_net.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 3efa86c3ecb3..242348bb3766 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h | |||
@@ -22,11 +22,19 @@ | |||
22 | #define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */ | 22 | #define VIRTIO_NET_F_HOST_ECN 13 /* Host can handle TSO[6] w/ ECN in. */ |
23 | #define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */ | 23 | #define VIRTIO_NET_F_HOST_UFO 14 /* Host can handle UFO in. */ |
24 | #define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */ | 24 | #define VIRTIO_NET_F_MRG_RXBUF 15 /* Host can merge receive buffers. */ |
25 | #define VIRTIO_NET_F_STATUS 16 /* virtio_net_config.status available */ | ||
26 | #define VIRTIO_NET_F_CTRL_VQ 17 /* Control channel available */ | ||
27 | #define VIRTIO_NET_F_CTRL_RX 18 /* Control channel RX mode support */ | ||
28 | #define VIRTIO_NET_F_CTRL_VLAN 19 /* Control channel VLAN filtering */ | ||
29 | |||
30 | #define VIRTIO_NET_S_LINK_UP 1 /* Link is up */ | ||
25 | 31 | ||
26 | struct virtio_net_config | 32 | struct virtio_net_config |
27 | { | 33 | { |
28 | /* The config defining mac address (if VIRTIO_NET_F_MAC) */ | 34 | /* The config defining mac address (if VIRTIO_NET_F_MAC) */ |
29 | __u8 mac[6]; | 35 | __u8 mac[6]; |
36 | /* See VIRTIO_NET_F_STATUS and VIRTIO_NET_S_* above */ | ||
37 | __u16 status; | ||
30 | } __attribute__((packed)); | 38 | } __attribute__((packed)); |
31 | 39 | ||
32 | /* This is the first element of the scatter-gather list. If you don't | 40 | /* This is the first element of the scatter-gather list. If you don't |
@@ -54,4 +62,67 @@ struct virtio_net_hdr_mrg_rxbuf { | |||
54 | __u16 num_buffers; /* Number of merged rx buffers */ | 62 | __u16 num_buffers; /* Number of merged rx buffers */ |
55 | }; | 63 | }; |
56 | 64 | ||
65 | /* | ||
66 | * Control virtqueue data structures | ||
67 | * | ||
68 | * The control virtqueue expects a header in the first sg entry | ||
69 | * and an ack/status response in the last entry. Data for the | ||
70 | * command goes in between. | ||
71 | */ | ||
72 | struct virtio_net_ctrl_hdr { | ||
73 | __u8 class; | ||
74 | __u8 cmd; | ||
75 | } __attribute__((packed)); | ||
76 | |||
77 | typedef __u8 virtio_net_ctrl_ack; | ||
78 | |||
79 | #define VIRTIO_NET_OK 0 | ||
80 | #define VIRTIO_NET_ERR 1 | ||
81 | |||
82 | /* | ||
83 | * Control the RX mode, ie. promisucous and allmulti. PROMISC and | ||
84 | * ALLMULTI commands require an "out" sg entry containing a 1 byte | ||
85 | * state value, zero = disable, non-zero = enable. These commands | ||
86 | * are supported with the VIRTIO_NET_F_CTRL_RX feature. | ||
87 | */ | ||
88 | #define VIRTIO_NET_CTRL_RX 0 | ||
89 | #define VIRTIO_NET_CTRL_RX_PROMISC 0 | ||
90 | #define VIRTIO_NET_CTRL_RX_ALLMULTI 1 | ||
91 | |||
92 | /* | ||
93 | * Control the MAC filter table. | ||
94 | * | ||
95 | * The MAC filter table is managed by the hypervisor, the guest should | ||
96 | * assume the size is infinite. Filtering should be considered | ||
97 | * non-perfect, ie. based on hypervisor resources, the guest may | ||
98 | * received packets from sources not specified in the filter list. | ||
99 | * | ||
100 | * In addition to the class/cmd header, the TABLE_SET command requires | ||
101 | * two out scatterlists. Each contains a 4 byte count of entries followed | ||
102 | * by a concatenated byte stream of the ETH_ALEN MAC addresses. The | ||
103 | * first sg list contains unicast addresses, the second is for multicast. | ||
104 | * This functionality is present if the VIRTIO_NET_F_CTRL_RX feature | ||
105 | * is available. | ||
106 | */ | ||
107 | struct virtio_net_ctrl_mac { | ||
108 | __u32 entries; | ||
109 | __u8 macs[][ETH_ALEN]; | ||
110 | } __attribute__((packed)); | ||
111 | |||
112 | #define VIRTIO_NET_CTRL_MAC 1 | ||
113 | #define VIRTIO_NET_CTRL_MAC_TABLE_SET 0 | ||
114 | |||
115 | /* | ||
116 | * Control VLAN filtering | ||
117 | * | ||
118 | * The VLAN filter table is controlled via a simple ADD/DEL interface. | ||
119 | * VLAN IDs not added may be filterd by the hypervisor. Del is the | ||
120 | * opposite of add. Both commands expect an out entry containing a 2 | ||
121 | * byte VLAN ID. VLAN filterting is available with the | ||
122 | * VIRTIO_NET_F_CTRL_VLAN feature bit. | ||
123 | */ | ||
124 | #define VIRTIO_NET_CTRL_VLAN 2 | ||
125 | #define VIRTIO_NET_CTRL_VLAN_ADD 0 | ||
126 | #define VIRTIO_NET_CTRL_VLAN_DEL 1 | ||
127 | |||
57 | #endif /* _LINUX_VIRTIO_NET_H */ | 128 | #endif /* _LINUX_VIRTIO_NET_H */ |