* 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>
*/
//backend device for Virtio NIC
-#include <palacios/vmm_vnet.h>
+#include <vnet/vnet.h>
#include <palacios/vmm.h>
#include <palacios/vmm_dev_mgr.h>
#include <devices/lnx_virtio_pci.h>
#include <palacios/vm_guest_mem.h>
#include <devices/pci.h>
+#include <palacios/vmm_sprintf.h>
+#include <palacios/vmm_ethernet.h>
-
-#ifndef CONFIG_DEBUG_VNET_NIC
+#ifndef V3_CONFIG_DEBUG_VNET_NIC
#undef PrintDebug
#define PrintDebug(fmt, args...)
#endif
-#define ETHERNET_PACKET_LEN 1514
-struct eth_pkt {
- uint32_t size; //size of data
- char data[ETHERNET_PACKET_LEN];
-}__attribute__((packed));
-
struct vnet_nic_state {
- char mac[6];
- struct guest_info *core;
- struct gen_queue * inpkt_q;
-
- void *frontend_data;
- int (*frontend_input)(struct v3_vm_info *info,
- uchar_t * buf,
- uint32_t size,
- void *private_data);
+ 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);
- v3_vnet_send_rawpkt(buf, len, private_data);
- return 0;
-}
+/* 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;
-static int register_frontend_input(void *backend_data,
- int (*frontend_input)(struct v3_vm_info *info,
- uchar_t * buf,
- uint32_t size,
- void *private_data),
- void *front_data){
- struct vnet_nic_state *dev = (struct vnet_nic_state *)backend_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;
- dev->frontend_data = front_data;
- dev->frontend_input = frontend_input;
+ V3_Net_Print(2, "VNET-NIC: send pkt (size: %d, src_id: %d, src_type: %d)\n",
+ pkt.size, pkt.src_id, pkt.src_type);
+ if(net_debug >= 4){
+ v3_hexdump(buf, len, NULL, 0);
+ }
- return 0;
+ return v3_vnet_send_pkt(&pkt, NULL);
}
-static struct v3_dev_net_ops net_ops = {
- .send = vnet_send,
- .register_input = register_frontend_input,
-};
-
-static int virtio_input(struct v3_vm_info *info, uchar_t * buf, uint32_t len, void * private_data){
+/* send pkt to frontend device */
+static int fnt_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->frontend_input(info, buf, len, vnetnic->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);
+ V3_Net_Print(2, "VNET-NIC: receive pkt (size %d, src_id:%d, src_type: %d, dst_id: %d, dst_type: %d)\n",
+ pkt->size, pkt->src_id, pkt->src_type, pkt->dst_id, pkt->dst_type);
- PrintDebug("Vnet NIC: sendto_buf: packet: (size:%d)\n", (int)pkt->size);
-
- return pkt->size;
+ return vnetnic->net_ops.recv(pkt->data, pkt->size,
+ vnetnic->net_ops.config.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;
-}
+/* poll pkt from frontend device */
+static int fnt_poll(struct v3_vm_info * info,
+ int quote, void * private_data){
+ struct vnet_nic_state *vnetnic = (struct vnet_nic_state *)private_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)
-{
-
- return 0;
+ return vnetnic->net_ops.poll(quote, vnetnic->net_ops.config.frontend_data);
}
-#endif
-//register a virtio device to the vnet as backend
-int register_to_vnet(struct v3_vm_info *info,
- struct vnet_nic_state *vnet_nic,
- char *dev_name,
- uchar_t mac[6]){
- uchar_t brdmac[6] = {0xff,0xff,0xff,0xff,0xff,0xff};
- uchar_t zeromac[6] = {0,0,0,0,0,0};
- struct v3_vnet_route route;
+static int vnet_nic_free(struct vnet_nic_state * vnetnic) {
- PrintDebug("Vnet-nic: register Vnet-nic device %s, state %p to VNET\n", dev_name, vnet_nic);
+ v3_vnet_del_dev(vnetnic->vnet_dev_id);
+ V3_Free(vnetnic);
- int idx = v3_vnet_add_node(info, dev_name, mac, virtio_input, (void *)vnet_nic);
-
- if (idx < 0) return -1;
-
- //add default routes for each link edge device
- memcpy(&route.src_mac, zeromac, 6);
- memcpy(&route.dest_mac, mac, 6);
- route.src_mac_qual = MAC_ANY;
- route.dest_mac_qual = MAC_NONE;
- route.link_idx = idx;
- route.link_type = LINK_EDGE;
- route.src_link_idx = -1;
- route.src_type = LINK_ANY;
- v3_vnet_add_route(&route);
-
- memcpy(&route.dest_mac, brdmac, 6);
- memcpy(&route.src_mac, mac, 6);
- route.src_mac_qual = MAC_NOT;
- route.dest_mac_qual = MAC_NONE;
- route.link_idx = idx;
- route.link_type = LINK_EDGE;
- route.src_link_idx = -1;
- route.src_type = LINK_ANY;
- v3_vnet_add_route(&route);
-
- return 0;
-}
-
-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,
+ .free = (int (*)(void *))vnet_nic_free,
+
};
+static struct v3_vnet_dev_ops vnet_dev_ops = {
+ .input = fnt_input,
+ .poll = fnt_poll,
+};
+
+
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");
+ int vnet_dev_id;
v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
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);
-
- if (v3_attach_device(vm, dev) == -1) {
- PrintError("Could not attach device %s\n", name);
+ struct vm_device * dev = v3_add_device(vm, dev_id, &dev_ops, vnetnic);
+ if (dev == NULL) {
+ PrintError("Could not attach device %s\n", dev_id);
+ V3_Free(vnetnic);
return -1;
}
+ vnetnic->net_ops.send = vnet_nic_send;
+ vnetnic->vm = vm;
+
if (v3_dev_connect_net(vm, v3_cfg_val(frontend_cfg, "tag"),
- &net_ops, frontend_cfg, vnetnic) == -1) {
+ &(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"));
+ v3_remove_device(dev);
return -1;
}
- vnetnic->inpkt_q = v3_create_queue();
-
- 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"));
- PrintDebug("Vnet-nic device %s initialized\n", name);
+ if ((vnet_dev_id = v3_vnet_add_dev(vm, vnetnic->net_ops.config.fnt_mac,
+ &vnet_dev_ops, vnetnic->net_ops.config.quote,
+ vnetnic->net_ops.config.poll, (void *)vnetnic)) == -1) {
+ PrintError("Vnet-nic device %s fails to registered to VNET\n", dev_id);
+
+ v3_remove_device(dev);
+ return 0;
+ }
+ vnetnic->vnet_dev_id = vnet_dev_id;
return 0;
}
