* 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>
#include <devices/lnx_virtio_pci.h>
#include <palacios/vm_guest_mem.h>
#include <devices/pci.h>
-
+#include <palacios/vmm_sprintf.h>
#ifndef CONFIG_DEBUG_VNET_NIC
#undef PrintDebug
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){
- PrintDebug("Virito NIC: In vnet_send: guest net state %p\n", private_data);
- struct v3_vnet_pkt * pkt = NULL;
+/* 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;
- // fill in packet
- pkt = (struct v3_vnet_pkt *)V3_Malloc(sizeof(struct v3_vnet_pkt));
+ //v3_vnet_enable_device(vnetnic->vnet_dev_id);
+}
- if(pkt == NULL){
- PrintError("Malloc() fails");
- return -1;
- }
+/* 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;
- pkt->size = len;
- memcpy(pkt->data, buf, pkt->size);
+ //v3_vnet_disable_device(vnetnic->vnet_dev_id);
+}
- //TODO:
+/* called by frontend, send pkt to VNET */
+static int vnet_nic_send(uint8_t * buf, uint32_t len,
+ void * private_data) {
+ 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;
+ memcpy(pkt.header, buf, ETHERNET_HEADER_LEN);
+ pkt.data = buf;
+
+#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_send_pkt(pkt);
- return 0;
+ return v3_vnet_send_pkt(&pkt, NULL);;
}
-// 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){
+/* 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);
+}
- return vnetnic->net_ops.recv(pkt->data, pkt->size, vnetnic->net_ops.frontend_data);
+/* 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;
+
+ vnetnic->net_ops.poll(info, 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);
+/* 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;
- return pkt->size;
+ vnetnic->net_ops.start_tx(vnetnic->net_ops.frontend_data);
}
-/*
- *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);
- }
- }
-
- return 0;
+/* 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);
}
-/*
- *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)
-{
-
+static int vnet_nic_free(struct vm_device * dev) {
return 0;
}
-#endif
+static struct v3_device_ops dev_ops = {
+ .free = vnet_nic_free,
+
+};
+
+static struct v3_vnet_dev_ops vnet_dev_ops = {
+ .input = virtio_input,
+ .poll = virtio_poll,
+ .start_tx = start_tx,
+ .stop_tx = stop_tx,
+};
+
-//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]) {
+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);
- v3_vnet_add_dev(vm, mac, virtio_input, (void *)vnet_nic);
-
- return 0;
+ return v3_vnet_add_dev(vm, mac, &vnet_dev_ops, (void *)vnet_nic);
}
-static int vnet_nic_free(struct vm_device * dev) {
- return 0;
-}
-static struct v3_device_ops dev_ops = {
- .free = vnet_nic_free,
- .reset = NULL,
- .start = NULL,
- .stop = NULL,
-};
+static int str2mac(char * macstr, char mac[6]){
+ char hex[2], *s = macstr;
+ int i = 0;
+
+ 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;
+ 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: 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(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;
+ 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",
- 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) {
- return -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);
+ }
+ vnetnic->vnet_dev_id = vnet_dev_id;
+
+ PrintDebug("Vnet-nic device %s (mac: %s, %ld) registered to VNET\n",
+ dev_id, 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(dev_id, "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
- PrintDebug("Vnet-nic device %s initialized\n", name);
+//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(dev_id, "vnet_nic")){ //domu
+ vnet_nic_guestid = vnet_dev_id;
+ }
+ if (!strcmp(dev_id, "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;
}
