* and the University of New Mexico. You can find out more at
* http://www.v3vee.org
*
- * Copyright (c) 2008, Lei Xia <lxia@northwestern.edu>
- * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org>
+ * Copyright (c) 2010, Lei Xia <lxia@northwestern.edu>
+ * Copyright (c) 2010, The V3VEE Project <http://www.v3vee.org>
* All rights reserved.
*
* Author: Lei Xia <lxia@northwestern.edu>
int vnet_dev_id;
};
+/* called by frontend device,
+ * tell the VNET can start sending pkt to it */
+static void start_rx(void *private_data){
+ struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
-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;
+ v3_vnet_enable_device(vnetnic->vnet_dev_id);
+}
+
+/* called by frontend device,
+ * tell the VNET stop sending pkt to it */
+static void stop_rx(void *private_data){
+ struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
+
+ v3_vnet_disable_device(vnetnic->vnet_dev_id);
+}
+
+/* called by frontend, send pkt to VNET */
+static int vnet_nic_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.size = len;
pkt.src_type = LINK_INTERFACE;
pkt.src_id = 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);
- return 0;
+ return v3_vnet_send_pkt(&pkt, NULL);;
}
+
+/* called by VNET,
+ * send pkt to frontend device */
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;
- PrintDebug("Vnet-nic: In input: vnet_nic state %p\n", vnetnic);
+ return vnetnic->net_ops.recv(pkt->data,
+ pkt->size,
+ vnetnic->net_ops.frontend_data);
+}
+
+/* called by VNET,
+ * tell frontend device to poll data from guest */
+static void virtio_poll(struct v3_vm_info *info, 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);
+ vnetnic->net_ops.poll(info, vnetnic->net_ops.frontend_data);
}
-static int register_to_vnet(struct v3_vm_info * vm,
- struct vnet_nic_state * vnet_nic,
- char * dev_name,
- uint8_t mac[6]) {
-
- PrintDebug("Vnet-nic: register Vnet-nic device %s, state %p to VNET\n", dev_name, vnet_nic);
-
- return v3_vnet_add_dev(vm, mac, virtio_input, (void *)vnet_nic);
+/* called by VNET, from different processor */
+static void virtio_poll_xcall(void *data){
+ struct v3_vnet_dev_xcall_args *args = (struct v3_vnet_dev_xcall_args *)data;
+ struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)args->private_data;
+
+ if(args->vm == vnetnic->vm) /*only do polling on the same Virtual Machine */
+ virtio_poll(args->vm, args->private_data);
+}
+
+/* called by VNET,
+ * tell the frontend to start sending pkt to VNET*/
+static void start_tx(void *private_data){
+ struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
+
+ vnetnic->net_ops.start_tx(vnetnic->net_ops.frontend_data);
}
+/* called by VNET
+ * tell the frontend device to stop sending pkt to VNET*/
+static void stop_tx(void *private_data){
+ struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_data;
+
+ vnetnic->net_ops.stop_tx(vnetnic->net_ops.frontend_data);
+}
+
+
static int vnet_nic_free(struct vm_device * dev) {
return 0;
}
.stop = NULL,
};
+static struct v3_vnet_dev_ops vnet_dev_ops = {
+ .input = virtio_input,
+ .poll = virtio_poll,
+ .poll_xcall = virtio_poll_xcall,
+ .start_tx = start_tx,
+ .stop_tx = stop_tx,
+};
-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);
+static 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);
+
+ return v3_vnet_add_dev(vm, mac, &vnet_dev_ops, (void *)vnet_nic);
+}
- if (i == 6) {
- return 0;
- }
- s = strchr(s, ':');
+static int str2mac(char *macstr, char mac[6]){
+ char hex[2], *s = macstr;
+ int i = 0;
- if (s) {
- s++;
- }
+ 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 * dev_id = v3_cfg_val(cfg, "ID");
+ char * name = v3_cfg_val(cfg, "name");
char * macstr = NULL;
- int vnet_dev_id = 0;
- v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
+ char mac[6];
+ int vnet_dev_id;
+ 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;
+ PrintDebug("Vnet-nic: No Mac specified\n");
+ } else {
+ str2mac(macstr, mac);
}
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(dev_id, &dev_ops, vnetnic);
+ struct vm_device * dev = v3_allocate_device(name, &dev_ops, vnetnic);
if (v3_attach_device(vm, dev) == -1) {
- PrintError("Could not attach device %s\n", dev_id);
+ PrintError("Could not attach device %s\n", name);
return -1;
}
-
-
- vnetnic->net_ops.send = vnet_send;
- str2mac(macstr, vnetnic->mac);
+ vnetnic->net_ops.send = vnet_nic_send;
+ vnetnic->net_ops.start_rx = start_rx;
+ vnetnic->net_ops.stop_rx = stop_rx;
+ memcpy(vnetnic->mac, mac, 6);
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",
- dev_id, v3_cfg_val(frontend_cfg, "tag"));
+ name, v3_cfg_val(frontend_cfg, "tag"));
return -1;
}
PrintDebug("Vnet-nic: Connect %s to frontend %s\n",
- dev_id, v3_cfg_val(frontend_cfg, "tag"));
+ name, 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;
+ if ((vnet_dev_id = register_to_vnet(vm, vnetnic, name, vnetnic->mac)) == -1) {
+ PrintError("Vnet-nic device %s (mac: %s) fails to registered to VNET\n", name, macstr);
}
-
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));
+ PrintDebug("Vnet-nic device %s (mac: %s, %ld) registered to VNET\n",
+ name, macstr, *((ulong_t *)vnetnic->mac));
+
+
+//for temporary hack for vnet bridge test
+#if 0
+ {
+ uchar_t zeromac[6] = {0,0,0,0,0,0};
+
+ if(!strcmp(name, "vnet_nic")){
+ struct v3_vnet_route route;
+
+ route.dst_id = vnet_dev_id;
+ route.dst_type = LINK_INTERFACE;
+ route.src_id = 0;
+ route.src_type = LINK_EDGE;
+ memcpy(route.dst_mac, zeromac, 6);
+ route.dst_mac_qual = MAC_ANY;
+ memcpy(route.src_mac, zeromac, 6);
+ route.src_mac_qual = MAC_ANY;
+ v3_vnet_add_route(route);
+
+
+ route.dst_id = 0;
+ route.dst_type = LINK_EDGE;
+ route.src_id = vnet_dev_id;
+ route.src_type = LINK_INTERFACE;
+ memcpy(route.dst_mac, zeromac, 6);
+ route.dst_mac_qual = MAC_ANY;
+ memcpy(route.src_mac, zeromac, 6);
+ route.src_mac_qual = MAC_ANY;
+
+ v3_vnet_add_route(route);
+ }
+ }
+#endif
+
+//for temporary hack for Linux bridge (w/o encapuslation) test
+#if 1
+ {
+ static int vnet_nic_guestid = -1;
+ static int vnet_nic_dom0 = -1;
+ uchar_t zeromac[6] = {0,0,0,0,0,0};
+
+ if(!strcmp(name, "vnet_nic")){ //domu
+ vnet_nic_guestid = vnet_dev_id;
+ }
+ if (!strcmp(name, "vnet_nic_dom0")){
+ vnet_nic_dom0 = vnet_dev_id;
+ }
+ if(vnet_nic_guestid != -1 && vnet_nic_dom0 !=-1){
+ struct v3_vnet_route route;
+
+ route.src_id = vnet_nic_guestid;
+ route.src_type = LINK_INTERFACE;
+ route.dst_id = vnet_nic_dom0;
+ route.dst_type = LINK_INTERFACE;
+ memcpy(route.dst_mac, zeromac, 6);
+ route.dst_mac_qual = MAC_ANY;
+ memcpy(route.src_mac, zeromac, 6);
+ route.src_mac_qual = MAC_ANY;
+ v3_vnet_add_route(route);
+
+
+ route.src_id = vnet_nic_dom0;
+ route.src_type = LINK_INTERFACE;
+ route.dst_id = vnet_nic_guestid;
+ route.dst_type = LINK_INTERFACE;
+ memcpy(route.dst_mac, zeromac, 6);
+ route.dst_mac_qual = MAC_ANY;
+ memcpy(route.src_mac, zeromac, 6);
+ route.src_mac_qual = MAC_ANY;
+
+ v3_vnet_add_route(route);
+ }
+ }
+#endif
return 0;
}
