struct vnet_nic_state {
char mac[6];
- struct guest_info * core;
+ struct v3_vm_info * vm;
struct v3_dev_net_ops net_ops;
+ int vnet_dev_id;
};
-//used when virtio_nic get a packet from guest and send it to the backend
-static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device *dest_dev){
- struct v3_vnet_pkt * pkt = NULL;
- PrintDebug("Virtio VNET-NIC: send pkt size: %d\n", len);
-#ifdef CONFIG_DEBUG_VNET_NIC
- v3_hexdump(buf, len, NULL, 0);
-#endif
+static int vnet_send(uint8_t * buf, uint32_t len, void * private_data, struct vm_device * dest_dev){
+ struct vnet_nic_state * vnetnic = (struct vnet_nic_state *)private_data;
+ struct v3_vnet_pkt pkt;
- pkt = (struct v3_vnet_pkt *)V3_Malloc(sizeof(struct v3_vnet_pkt));
+ pkt.size = len;
+ pkt.src_type = LINK_INTERFACE;
+ pkt.src_id = vnetnic->vnet_dev_id;
+ memcpy(pkt.header, buf, ETHERNET_HEADER_LEN);
+ pkt.data = buf;
- if(pkt == NULL){
- PrintError("Malloc() fails");
- return -1;
+#ifdef CONFIG_DEBUG_VNET_NIC
+ {
+ PrintDebug("Virtio VNET-NIC: send pkt size: %d, pkt src_id: %d\n",
+ len, vnetnic->vnet_dev_id);
+ v3_hexdump(buf, len, NULL, 0);
}
+#endif
+/*
+ v3_vnet_rx(buf, len, vnetnic->vnet_dev_id, LINK_INTERFACE);
+
+ //if on the dom0 core, interrupt the domU core to poll pkts
+ //otherwise, call the polling directly
+ int cpu = V3_Get_CPU();
+ cpu = (cpu == 0)?1:0;
+ v3_interrupt_cpu(vnetnic->vm, cpu, V3_VNET_POLLING_VECTOR);
+ */
+
+ v3_vnet_send_pkt(&pkt, NULL);
- pkt->size = len;
- memcpy(pkt->data, buf, pkt->size);
-
- v3_vnet_send_pkt(pkt);
-
- V3_Free(pkt);
return 0;
}
-
-// We need to make this dynamically allocated
-//static struct v3_dev_net_ops net_ops = {
-// .send = vnet_send,
-//};
-
static int virtio_input(struct v3_vm_info *info, struct v3_vnet_pkt * pkt, void * private_data){
struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
return vnetnic->net_ops.recv(pkt->data, pkt->size, vnetnic->net_ops.frontend_data);
}
-#if 0
-static int sendto_buf(struct vnet_nic_dev_state *vnetnic_dev, uchar_t * buf, uint_t size) {
- struct eth_pkt *pkt;
-
- pkt = (struct eth_pkt *)V3_Malloc(sizeof(struct eth_pkt));
- if(pkt == NULL){
- PrintError("Vnet NIC: Memory allocate fails\n");
- return -1;
- }
-
- pkt->size = size;
- memcpy(pkt->data, buf, size);
- v3_enqueue(vnetnic_dev->inpkt_q, (addr_t)pkt);
-
- PrintDebug("Vnet NIC: sendto_buf: packet: (size:%d)\n", (int)pkt->size);
-
- return pkt->size;
-}
-
-/*
- *called in svm/vmx handler
- *iteative handled the unsent packet in incoming packet queues for
- *all virtio nic devices in this guest
- */
-int v3_virtionic_pktprocess(struct guest_info * info)
-{
- struct eth_pkt *pkt = NULL;
- struct virtio_net_state *net_state;
- int i;
-
- //PrintDebug("Virtio NIC: processing guest %p\n", info);
- for (i = 0; i < net_idx; i++) {
- while (1) {
- net_state = temp_net_states[i];
- if(net_state->dev->vm != info)
- break;
-
- pkt = (struct eth_pkt *)v3_dequeue(net_state->inpkt_q);
- if(pkt == NULL)
- break;
-
- if (send_pkt_to_guest(net_state, pkt->data, pkt->size, 1, NULL)) {
- PrintDebug("Virtio NIC: %p In pkt_handle: send one packet! pt length %d\n",
- net_state, (int)pkt->size);
- } else {
- PrintDebug("Virtio NIC: %p In pkt_handle: Fail to send one packet, pt length %d, discard it!\n",
- net_state, (int)pkt->size);
- }
-
- V3_Free(pkt);
- }
- }
+static int register_to_vnet(struct v3_vm_info * vm,
+ struct vnet_nic_state * vnet_nic,
+ char * dev_name,
+ uint8_t mac[6]) {
- return 0;
-}
-
-
-/*
- *called in svm/vmx handler
- *iteative handled the unsent packet in incoming packet queues for
- *all virtio nic devices in this guest
- */
-int v3_vnetnic_pktprocess(struct guest_info * info)
-{
-
- return 0;
-}
-
-#endif
-
-//register a virtio device to the vnet as backend
-int register_to_vnet(struct v3_vm_info * vm,
- struct vnet_nic_state *vnet_nic,
- char *dev_name,
- uchar_t mac[6]) {
-
PrintDebug("Vnet-nic: register Vnet-nic device %s, state %p to VNET\n", dev_name, vnet_nic);
- v3_vnet_add_dev(vm, mac, virtio_input, (void *)vnet_nic);
-
- return 0;
+ return v3_vnet_add_dev(vm, mac, virtio_input, (void *)vnet_nic);
}
static int vnet_nic_free(struct vm_device * dev) {
.stop = NULL,
};
+
+static int str2mac(char * macstr, uint8_t mac[6]){
+ uint8_t hex[2];
+ int i = 0;
+ char * s = macstr;
+
+ while (s) {
+ memcpy(hex, s, 2);
+ mac[i++] = (char)atox(hex);
+
+ if (i == 6) {
+ return 0;
+ }
+
+ s = strchr(s, ':');
+
+ if (s) {
+ s++;
+ }
+ }
+
+ return -1;
+}
+
static int vnet_nic_init(struct v3_vm_info * vm, v3_cfg_tree_t * cfg) {
struct vnet_nic_state * vnetnic = NULL;
- char * name = v3_cfg_val(cfg, "name");
-
+ char * dev_id = v3_cfg_val(cfg, "ID");
+ char * macstr = NULL;
+ int vnet_dev_id = 0;
v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
+ macstr = v3_cfg_val(frontend_cfg, "mac");
+
+ if (macstr == NULL) {
+ PrintDebug("Vnet-nic configuration error: No Mac specified\n");
+ return -1;
+ }
+
vnetnic = (struct vnet_nic_state *)V3_Malloc(sizeof(struct vnet_nic_state));
memset(vnetnic, 0, sizeof(struct vnet_nic_state));
- struct vm_device * dev = v3_allocate_device(name, &dev_ops, vnetnic);
+ struct vm_device * dev = v3_allocate_device(dev_id, &dev_ops, vnetnic);
if (v3_attach_device(vm, dev) == -1) {
- PrintError("Could not attach device %s\n", name);
+ PrintError("Could not attach device %s\n", dev_id);
return -1;
}
+
+
vnetnic->net_ops.send = vnet_send;
+ str2mac(macstr, vnetnic->mac);
+ vnetnic->vm = vm;
+
if (v3_dev_connect_net(vm, v3_cfg_val(frontend_cfg, "tag"),
&(vnetnic->net_ops), frontend_cfg, vnetnic) == -1) {
PrintError("Could not connect %s to frontend %s\n",
- name, v3_cfg_val(frontend_cfg, "tag"));
+ dev_id, v3_cfg_val(frontend_cfg, "tag"));
return -1;
}
- if (register_to_vnet(vm, vnetnic, name, vnetnic->mac) == -1) {
+ PrintDebug("Vnet-nic: Connect %s to frontend %s\n",
+ dev_id, v3_cfg_val(frontend_cfg, "tag"));
+
+ if ((vnet_dev_id = register_to_vnet(vm, vnetnic, dev_id, vnetnic->mac)) == -1) {
+ PrintError("Vnet-nic device %s (mac: %s) fails to registered to VNET\n", dev_id, macstr);
return -1;
}
- PrintDebug("Vnet-nic device %s initialized\n", name);
+ vnetnic->vnet_dev_id = vnet_dev_id;
+
+ PrintDebug("Vnet-nic device %s (mac: %s, %ld) registered to VNET\n", dev_id, macstr, *((uint32_t *)vnetnic->mac));
+
return 0;
}
