* 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
-
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;
- struct guest_info *core = (struct guest_info *)private_data;
-
- PrintDebug("Virtio VNET-NIC: send pkt size: %d\n", len);
-#ifdef CONFIG_DEBUG_VNET_NIC
- v3_hexdump(buf, len, NULL, 0);
-#endif
-
-#ifdef CONFIG_VNET_PROFILE
- uint64_t start, end;
- rdtscll(start);
-#endif
- pkt = (struct v3_vnet_pkt *)V3_Malloc(sizeof(struct v3_vnet_pkt));
-
- if(pkt == NULL){
- PrintError("Malloc() fails");
- return -1;
- }
-
-#ifdef CONFIG_VNET_PROFILE
- {
- rdtscll(end);
- core->vnet_times.time_mallocfree = end - start;
- }
-#endif
-
-
- pkt->size = len;
- memcpy(pkt->data, buf, pkt->size);
-
-#ifdef CONFIG_VNET_PROFILE
- {
- rdtscll(start);
- core->vnet_times.time_copy_from_guest = start - end;
- }
-#endif
-
- v3_vnet_send_pkt(pkt, (void *)core);
-
-#ifdef CONFIG_VNET_PROFILE
- {
- rdtscll(end);
- core->vnet_times.vnet_handle_time = end - start;
- }
-#endif
+/* called by frontend, send pkt to VNET */
+static int vnet_nic_send(uint8_t * buf, uint32_t len,
+ int synchronize, void * private_data) {
+ struct vnet_nic_state * vnetnic = (struct vnet_nic_state *)private_data;
- V3_Free(pkt);
+ 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_VNET_PROFILE
- {
- rdtscll(start);
- core->vnet_times.time_mallocfree += start - end;
+ 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(vnet_debug >= 4){
+ v3_hexdump(buf, len, NULL, 0);
}
-#endif
- return 0;
+ return v3_vnet_send_pkt(&pkt, NULL, synchronize);
}
-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);
-}
-
-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_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);
- return v3_vnet_add_dev(vm, mac, virtio_input, (void *)vnet_nic);
+ return vnetnic->net_ops.recv(pkt->data, pkt->size,
+ vnetnic->net_ops.frontend_data);
}
-static int vnet_nic_free(struct vm_device * dev) {
+
+static int vnet_nic_free(struct vnet_nic_state * vnetnic) {
+
+ v3_vnet_del_dev(vnetnic->vnet_dev_id);
+ V3_Free(vnetnic);
+
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 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++;
- }
+static struct v3_vnet_dev_ops vnet_dev_ops = {
+ .input = virtio_input,
+};
- 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 * macstr;
- char mac[6];
+ char * dev_id = v3_cfg_val(cfg, "ID");
int vnet_dev_id;
v3_cfg_tree_t * frontend_cfg = v3_cfg_subtree(cfg, "frontend");
- macstr = v3_cfg_val(frontend_cfg, "mac");
- 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);
-
- 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_send;
- memcpy(vnetnic->mac, mac, 6);
+ vnetnic->net_ops.send = vnet_nic_send;
+ 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"));
+ v3_remove_device(dev);
return -1;
}
PrintDebug("Vnet-nic: Connect %s to frontend %s\n",
- name, v3_cfg_val(frontend_cfg, "tag"));
-
- if ((vnet_dev_id = register_to_vnet(vm, vnetnic, name, vnetnic->mac)) == -1) {
- return -1;
- }
+ dev_id, v3_cfg_val(frontend_cfg, "tag"));
- PrintDebug("Vnet-nic device %s (mac: %s, %ld) initialized\n", name, macstr, *((ulong_t *)vnetnic->mac));
-
-
-//for temporary hack
-#if 1
- {
- //uchar_t tapmac[6] = {0x00,0x02,0x55,0x67,0x42,0x39}; //for Intel-VT test HW
- uchar_t tapmac[6] = {0x6e,0xa8,0x75,0xf4,0x82,0x95};
- uchar_t dstmac[6] = {0xff,0xff,0xff,0xff,0xff,0xff};
- uchar_t zeromac[6] = {0,0,0,0,0,0};
-
- struct v3_vnet_route route;
- route.dst_id = vnet_dev_id;
- route.dst_type = LINK_INTERFACE;
- route.src_id = -1;
- route.src_type = LINK_ANY;
-
- if(!strcmp(name, "vnet_nicdom0")){
- memcpy(route.dst_mac, tapmac, 6);
- route.dst_mac_qual = MAC_NONE;
- memcpy(route.src_mac, zeromac, 6);
- route.src_mac_qual = MAC_ANY;
-
- v3_vnet_add_route(route);
-
- memcpy(route.dst_mac, dstmac, 6);
- route.dst_mac_qual = MAC_NONE;
- memcpy(route.src_mac, tapmac, 6);
- route.src_mac_qual = MAC_NOT;
-
- v3_vnet_add_route(route);
- }
-
- if (!strcmp(name, "vnet_nic0")){
- memcpy(route.dst_mac, zeromac, 6);
- route.dst_mac_qual = MAC_ANY;
- memcpy(route.src_mac, tapmac, 6);
- route.src_mac_qual = MAC_NONE;
-
- v3_vnet_add_route(route);
- }
+ if ((vnet_dev_id = v3_vnet_add_dev(vm, vnetnic->net_ops.fnt_mac, &vnet_dev_ops, (void *)vnetnic)) == -1) {
+ PrintError("Vnet-nic device %s fails to registered to VNET\n", dev_id);
+
+ v3_remove_device(dev);
+ return 0;
}
-
-#endif
+ vnetnic->vnet_dev_id = vnet_dev_id;
return 0;
}
