* and the University of New Mexico. You can find out more at
* http://www.v3vee.org
*
- * Copyright (c) 2009, Lei Xia <lxia@northwestern.edu>
+ * Copyright (c) 2010, Lei Xia <lxia@northwestern.edu>
* Copyright (c) 2009, Yuan Tang <ytang@northwestern.edu>
* Copyright (c) 2009, The V3VEE Project <http://www.v3vee.org>
* All rights reserved.
#include <palacios/vm_guest_mem.h>
#include <palacios/vmm_lock.h>
#include <palacios/vmm_queue.h>
+#include <palacios/vmm_sprintf.h>
#ifndef CONFIG_DEBUG_VNET
#undef PrintDebug
#endif
+/* for UDP encapuslation */
+struct eth_header {
+ uchar_t dest[6];
+ uchar_t src[6];
+ uint16_t type;
+}__attribute__((packed));
+
+struct ip_header {
+ uint8_t version: 4;
+ uint8_t hdr_len: 4;
+ uchar_t tos;
+ uint16_t total_len;
+ uint16_t id;
+ uint8_t flags: 3;
+ uint16_t offset: 13;
+ uchar_t ttl;
+ uchar_t proto;
+ uint16_t cksum;
+ uint32_t src_addr;
+ uint32_t dst_addr;
+}__attribute__((packed));
+
+struct udp_header {
+ uint16_t src_port;
+ uint16_t dst_port;
+ uint16_t len;
+ uint16_t csum;//set to zero, disable the xsum
+}__attribute__((packed));
+
+struct udp_link_header {
+ struct eth_header eth_hdr;
+ struct ip_header ip_hdr;
+ struct udp_header udp_hdr;
+}__attribute__((packed));
+/* end with UDP encapuslation structures */
+
+
+
struct eth_hdr {
uint8_t dst_mac[6];
uint8_t src_mac[6];
- uint16_t type; // indicates layer 3 protocol type
+ uint16_t type; /* indicates layer 3 protocol type */
} __attribute__((packed));
-
-
-
struct vnet_dev {
-
+ int dev_id;
uint8_t mac_addr[6];
struct v3_vm_info * vm;
-
- int (*input)(struct v3_vm_info * vm, struct v3_vnet_pkt * pkt, void * private_data);
+ struct v3_vnet_dev_ops dev_ops;
void * private_data;
+
+ int rx_disabled;
- int dev_id;
struct list_head node;
} __attribute__((packed));
+struct vnet_brg_dev {
+ struct v3_vm_info * vm;
+ struct v3_vnet_bridge_ops brg_ops;
+
+ int disabled;
+ void * private_data;
+} __attribute__((packed));
};
-
-
struct route_list {
uint8_t hash_buf[VNET_HASH_SIZE];
} __attribute__((packed));
+#define BUF_SIZE 4096
+struct pkts_buf {
+ int start, end;
+ int num;
+ v3_lock_t lock;
+ struct v3_vnet_pkt pkts[BUF_SIZE];
+};
+
static struct {
struct list_head routes;
struct list_head devs;
-
+
int num_routes;
int num_devs;
+ struct vnet_brg_dev *bridge;
+
v3_lock_t lock;
- struct gen_queue * inpkt_q;
- struct hashtable * route_cache;
+ uint8_t sidecores; /* 0 -vnet not running on sidecore, > 0, number of extra cores that can be used by VNET */
+ uint64_t cores_map; /* bitmaps for which cores can be used by VNET for sidecore, maxium 64 */
+ struct hashtable * route_cache;
} vnet_state;
+#ifdef CONFIG_DEBUG_VNET
+static inline void mac_to_string(char mac[6], char * buf) {
+ snprintf(buf, 100, "%d:%d:%d:%d:%d:%d",
+ mac[0], mac[1], mac[2],
+ mac[3], mac[4], mac[5]);
+}
+
+static void print_route(struct vnet_route_info *route){
+ char str[50];
+
+ mac_to_string(route->route_def.src_mac, str);
+ PrintDebug("Src Mac (%s), src_qual (%d)\n",
+ str, route->route_def.src_mac_qual);
+ mac_to_string(route->route_def.dst_mac, str);
+ PrintDebug("Dst Mac (%s), dst_qual (%d)\n",
+ str, route->route_def.dst_mac_qual);
+ PrintDebug("Src dev id (%d), src type (%d)",
+ route->route_def.src_id,
+ route->route_def.src_type);
+ PrintDebug("Dst dev id (%d), dst type (%d)\n",
+ route->route_def.dst_id,
+ route->route_def.dst_type);
+ if (route->route_def.dst_type == LINK_INTERFACE) {
+ PrintDebug("dst_dev (%p), dst_dev_id (%d), dst_dev_ops(%p), dst_dev_data (%p)\n",
+ route->dst_dev,
+ route->dst_dev->dev_id,
+ (void *)&(route->dst_dev->dev_ops),
+ route->dst_dev->private_data);
+ }
+}
+
+static void dump_routes(){
+ struct vnet_route_info *route;
+
+ int i = 0;
+ PrintDebug("\n========Dump routes starts ============\n");
+ list_for_each_entry(route, &(vnet_state.routes), node) {
+ PrintDebug("\nroute %d:\n", ++i);
+
+ print_route(route);
+ }
+ PrintDebug("\n========Dump routes end ============\n");
+}
+
+#endif
+
+
/*
* A VNET packet is a packed struct with the hashed fields grouped together.
* This means we can generate the hash from an offset into the pkt struct
*/
static inline uint_t hash_fn(addr_t hdr_ptr) {
- uint8_t * hdr_buf = (uint8_t *)&(hdr_ptr);
-
+ uint8_t * hdr_buf = (uint8_t *)hdr_ptr;
+
return v3_hash_buffer(hdr_buf, VNET_HASH_SIZE);
}
-static inline int hash_eq(addr_t key1, addr_t key2) {
+static inline int hash_eq(addr_t key1, addr_t key2) {
return (memcmp((uint8_t *)key1, (uint8_t *)key2, VNET_HASH_SIZE) == 0);
}
-
-static int add_route_to_cache(struct v3_vnet_pkt * pkt, struct route_list * routes) {
+static int add_route_to_cache(const struct v3_vnet_pkt * pkt, struct route_list * routes) {
memcpy(routes->hash_buf, pkt->hash_buf, VNET_HASH_SIZE);
if (v3_htable_insert(vnet_state.route_cache, (addr_t)routes->hash_buf, (addr_t)routes) == 0) {
static int clear_hash_cache() {
- /* USE the hash table iterators.
- * See v3_swap_flush(struct v3_vm_info * vm) in vmm_shdw_pg_swapbypass.c
- */
-
- // MAKE SURE YOU DELETE the route_list entries
+ v3_free_htable(vnet_state.route_cache, 1, 1);
+ vnet_state.route_cache = v3_create_htable(0, &hash_fn, &hash_eq);
return 0;
}
-static int look_into_cache(struct v3_vnet_pkt * pkt, struct route_list ** routes) {
+static int look_into_cache(const struct v3_vnet_pkt * pkt, struct route_list ** routes) {
- *routes = (struct route_list *)v3_htable_search(vnet_state.route_cache, (addr_t)pkt);
+ *routes = (struct route_list *)v3_htable_search(vnet_state.route_cache, (addr_t)(pkt->hash_buf));
return 0;
}
+static struct vnet_dev * find_dev_by_id(int idx) {
+ struct vnet_dev * dev = NULL;
+
+ list_for_each_entry(dev, &(vnet_state.devs), node) {
+ int dev_id = dev->dev_id;
+ if (dev_id == idx)
+ return dev;
+ }
+ return NULL;
+}
+
+static struct vnet_dev * find_dev_by_mac(char mac[6]) {
+ struct vnet_dev * dev = NULL;
+
+ list_for_each_entry(dev, &(vnet_state.devs), node) {
+ if (!memcmp(dev->mac_addr, mac, 6))
+ return dev;
+ }
+
+ return NULL;
+}
+
+int v3_vnet_id_by_mac(char mac[6]){
+
+ struct vnet_dev *dev = find_dev_by_mac(mac);
+
+ if (dev == NULL)
+ return -1;
+
+ return dev->dev_id;
+}
int v3_vnet_add_route(struct v3_vnet_route route) {
new_route = (struct vnet_route_info *)V3_Malloc(sizeof(struct vnet_route_info));
memset(new_route, 0, sizeof(struct vnet_route_info));
- PrintDebug("Vnet: vnet_add_route_entry\n");
+ PrintDebug("Vnet: vnet_add_route_entry: dst_id: %d, dst_type: %d\n",
+ route.dst_id, route.dst_type);
- new_route->route_def = route;
+ memcpy(new_route->route_def.src_mac, route.src_mac, 6);
+ memcpy(new_route->route_def.dst_mac, route.dst_mac, 6);
+ new_route->route_def.src_mac_qual = route.src_mac_qual;
+ new_route->route_def.dst_mac_qual = route.dst_mac_qual;
+ new_route->route_def.dst_id = route.dst_id;
+ new_route->route_def.dst_type = route.dst_type;
+ new_route->route_def.src_id = route.src_id;
+ new_route->route_def.src_type = route.src_type;
- /* TODO: Find devices */
if (new_route->route_def.dst_type == LINK_INTERFACE) {
- // new_route->dst_dev = FIND_DEV();
+ new_route->dst_dev = find_dev_by_id(new_route->route_def.dst_id);
}
if (new_route->route_def.src_type == LINK_INTERFACE) {
- // new_route->src_dev = FIND_DEV()
+ new_route->src_dev = find_dev_by_id(new_route->route_def.src_id);
}
flags = v3_lock_irqsave(vnet_state.lock);
+
list_add(&(new_route->node), &(vnet_state.routes));
+ clear_hash_cache();
+
v3_unlock_irqrestore(vnet_state.lock, flags);
- clear_hash_cache();
+
+#ifdef CONFIG_DEBUG_VNET
+ dump_routes();
+#endif
return 0;
}
-// At the end allocate a route_list
-// This list will be inserted into the cache so we don't need to free it
-static struct route_list * match_route(struct v3_vnet_pkt * pkt) {
+/* At the end allocate a route_list
+ * This list will be inserted into the cache so we don't need to free it
+ */
+static struct route_list * match_route(const struct v3_vnet_pkt * pkt) {
struct vnet_route_info * route = NULL;
struct route_list * matches = NULL;
int num_matches = 0;
#ifdef CONFIG_DEBUG_VNET
{
- char dst_str[18];
- char src_str[18];
+ char dst_str[100];
+ char src_str[100];
mac_to_string(hdr->src_mac, src_str);
- mac_to_string(hdr->dst_mac, dest_str);
- PrintDebug("Vnet: match_route. pkt: SRC(%s), DEST(%s)\n", src_str, dest_str);
+ mac_to_string(hdr->dst_mac, dst_str);
+ PrintDebug("Vnet: match_route. pkt: SRC(%s), DEST(%s)\n", src_str, dst_str);
}
#endif
} while (0)
-
list_for_each_entry(route, &(vnet_state.routes), node) {
struct v3_vnet_route * route_def = &(route->route_def);
}
// Default route
- if ( (memcmp(route_def->src_mac, hdr->src_mac, 6) == 0) &
+ if ( (memcmp(route_def->src_mac, hdr->src_mac, 6) == 0) &&
(route_def->dst_mac_qual == MAC_NONE)) {
UPDATE_MATCHES(4);
}
return NULL;
}
- matches = V3_Malloc(sizeof(struct route_list) +
- (sizeof(struct vnet_route_info *) * num_matches));
+ matches = (struct route_list *)V3_Malloc(sizeof(struct route_list) +
+ (sizeof(struct vnet_route_info *) * num_matches));
matches->num_routes = num_matches;
{
int i = 0;
- list_for_each_entry(route, &match_list, node) {
+ list_for_each_entry(route, &match_list, match_node) {
matches->routes[i++] = route;
}
}
return matches;
}
-static int handle_one_pkt(struct v3_vnet_pkt * pkt) {
+static int send_to_bridge(struct v3_vnet_pkt * pkt){
+ struct vnet_brg_dev *bridge = vnet_state.bridge;
+
+ if (bridge == NULL) {
+ PrintError("VNET: No bridge to sent data to links\n");
+ return -1;
+ }
+
+ return bridge->brg_ops.input(bridge->vm, pkt, bridge->private_data);
+}
+
+
+/* enable a vnet device, notify VNET it can send pkts to it */
+int v3_vnet_enable_device(int dev_id){
+ struct vnet_dev *dev = find_dev_by_id(dev_id);
+ unsigned long flags;
+
+ if(!dev)
+ return -1;
+
+ if(!dev->rx_disabled)
+ return 0;
+
+ flags = v3_lock_irqsave(vnet_state.lock);
+ dev->rx_disabled = 0;
+ v3_unlock_irqrestore(vnet_state.lock, flags);
+
+ /* TODO: Wake up all other guests who are trying to send pkts */
+ dev = NULL;
+ list_for_each_entry(dev, &(vnet_state.devs), node) {
+ if (dev->dev_id != dev_id)
+ dev->dev_ops.start_tx(dev->private_data);
+ }
+
+ return 0;
+}
+
+/* Notify VNET to stop sending pkts to it */
+int v3_vnet_disable_device(int dev_id){
+ struct vnet_dev *dev = find_dev_by_id(dev_id);
+ unsigned long flags;
+
+ if(!dev)
+ return -1;
+
+ flags = v3_lock_irqsave(vnet_state.lock);
+ dev->rx_disabled = 1;
+ v3_unlock_irqrestore(vnet_state.lock, flags);
+
+
+ /* TODO: Notify all other guests to stop send pkts */
+ dev = NULL;
+ list_for_each_entry(dev, &(vnet_state.devs), node) {
+ if (dev->dev_id != dev_id)
+ dev->dev_ops.stop_tx(dev->private_data);
+ }
+
+ return 0;
+}
+
+int v3_vnet_send_pkt(struct v3_vnet_pkt * pkt, void * private_data) {
struct route_list * matched_routes = NULL;
+ unsigned long flags;
int i;
-
#ifdef CONFIG_DEBUG_VNET
- char dest_str[18];
- char src_str[18];
+ {
+ struct eth_hdr * hdr = (struct eth_hdr *)(pkt->header);
+ char dest_str[100];
+ char src_str[100];
- mac_to_string(hdr->src, src_str);
- mac_to_string(hdr->dst, dest_str);
- PrintDebug("Vnet: HandleDataOverLink. SRC(%s), DEST(%s)\n", src_str, dest_str);
+ mac_to_string(hdr->src_mac, src_str);
+ mac_to_string(hdr->dst_mac, dest_str);
+ int cpu = V3_Get_CPU();
+ PrintDebug("Vnet: on cpu %d, HandleDataOverLink. SRC(%s), DEST(%s), pkt size: %d\n", cpu, src_str, dest_str, pkt->size);
+ }
#endif
+ flags = v3_lock_irqsave(vnet_state.lock);
+
look_into_cache(pkt, &matched_routes);
-
+
if (matched_routes == NULL) {
- matched_routes = match_route(pkt);
-
- if (matched_routes) {
- add_route_to_cache(pkt, matched_routes);
+ PrintError("Vnet: send pkt Looking into routing table\n");
+
+ matched_routes = match_route(pkt);
+
+ if (matched_routes) {
+ add_route_to_cache(pkt, matched_routes);
} else {
- PrintError("Could not find route for packet...\n");
- return -1;
+ PrintDebug("Could not find route for packet... discards packet\n");
+ v3_unlock_irqrestore(vnet_state.lock, flags);
+ return 0; /* do we return -1 here?*/
}
}
-
-
- for (i = 0; i < matched_routes->num_routes; i++) {
- struct vnet_route_info * route = matched_routes->routes[i];
- if (route->route_def.dst_type == LINK_EDGE) {
+ v3_unlock_irqrestore(vnet_state.lock, flags);
- } else if (route->route_def.dst_type == LINK_INTERFACE) {
- if (route->dst_dev->input(route->dst_dev->vm, pkt, route->dst_dev->private_data) == -1) {
- PrintDebug("VNET: Packet not sent properly\n");
+ PrintDebug("Vnet: send pkt route matches %d\n", matched_routes->num_routes);
+
+ for (i = 0; i < matched_routes->num_routes; i++) {
+ struct vnet_route_info * route = matched_routes->routes[i];
+
+ if (route->route_def.dst_type == LINK_EDGE) {
+ pkt->dst_type = LINK_EDGE;
+ pkt->dst_id = route->route_def.dst_id;
+
+ if (send_to_bridge(pkt) == -1) {
+ PrintDebug("VNET: Packet not sent properly to bridge\n");
continue;
+ }
+ } else if (route->route_def.dst_type == LINK_INTERFACE) {
+ if (!route->dst_dev->rx_disabled){
+ if(route->dst_dev->dev_ops.input(route->dst_dev->vm, pkt, route->dst_dev->private_data) == -1) {
+ PrintDebug("VNET: Packet not sent properly\n");
+ continue;
+ }
}
} else {
- PrintDebug("Vnet: Wrong Edge type\n");
- continue;
+ PrintError("VNET: Wrong Edge type\n");
}
- PrintDebug("Vnet: HandleDataOverLink: Forward packet according to Route\n");
+ PrintDebug("VNET: Forward one packet according to Route %d\n", i);
}
return 0;
}
-int v3_vnet_send_pkt(struct v3_vnet_pkt * pkt) {
- // find the destination and call the send packet function, passing pkt *
-
-#ifdef CONFIG_DEBUG_VNET
- PrintDebug("VNET: send_pkt: transmitting packet: (size:%d)\n", (int)pkt->size);
- print_packet(pkt);
-#endif
-
- return 0;
-}
-
-
-/*
-static struct vnet_dev * find_dev_by_id(int idx) {
-
-
- // scan device list
- return NULL;
-}
-*/
-
-static struct vnet_dev * find_dev_by_mac(char * name) {
-
- return NULL;
-}
-
-int v3_vnet_add_dev(struct v3_vm_info *vm,uint8_t mac[6],
- int (*netif_input)(struct v3_vm_info * vm, struct v3_vnet_pkt * pkt, void * private_data),
+int v3_vnet_add_dev(struct v3_vm_info *vm, uint8_t mac[6],
+ struct v3_vnet_dev_ops *ops,
void * priv_data){
struct vnet_dev * new_dev = NULL;
+ unsigned long flags;
- new_dev = find_dev_by_mac(mac);
-
- if (new_dev) {
- PrintDebug("VNET: register device: Already has device with the name %s\n", dev_name);
- return -1;
- }
-
new_dev = (struct vnet_dev *)V3_Malloc(sizeof(struct vnet_dev));
if (new_dev == NULL) {
PrintError("VNET: Malloc fails\n");
return -1;
}
-
+
memcpy(new_dev->mac_addr, mac, 6);
- new_dev->input = netif_input;
+ new_dev->dev_ops.input = ops->input;
+ new_dev->dev_ops.poll = ops->poll;
new_dev->private_data = priv_data;
new_dev->vm = vm;
+ new_dev->dev_id = 0;
- // ADD TO dev list
- // increment dev count
+ flags = v3_lock_irqsave(vnet_state.lock);
- return 0;
-}
+ if (!find_dev_by_mac(mac)) {
+ list_add(&(new_dev->node), &(vnet_state.devs));
+ new_dev->dev_id = ++vnet_state.num_devs;
+ }
-int v3_vnet_pkt_process() {
- struct v3_vnet_pkt * pkt = NULL;
+ v3_unlock_irqrestore(vnet_state.lock, flags);
- while ((pkt = (struct v3_vnet_pkt *)v3_dequeue(vnet_state.inpkt_q)) != NULL) {
- if (handle_one_pkt(pkt) != -1) {
- PrintDebug("VNET: vnet_check: handle one packet! pt length %d, pt type %d\n", (int)pkt->size, (int)pkt->type);
- } else {
- PrintDebug("VNET: vnet_check: Fail to forward one packet, discard it!\n");
- }
-
- V3_Free(pkt); // be careful here
+ /* if the device was found previosly the id should still be 0 */
+ if (new_dev->dev_id == 0) {
+ PrintError("Device Alrady exists\n");
+ return -1;
}
-
- return 0;
-}
+ PrintDebug("Vnet: Add Device: dev_id %d\n", new_dev->dev_id);
-int V3_init_vnet() {
+ return new_dev->dev_id;
+}
- PrintDebug("VNET: Links table initiated\n");
- INIT_LIST_HEAD(&(vnet_state.routes));
- INIT_LIST_HEAD(&(vnet_state.devs));
+/* TODO: Still need to figure out how to handle this multicore part --Lei
+ */
+void v3_vnet_poll(struct v3_vm_info *vm){
+ struct vnet_dev * dev = NULL;
+
+ switch (vnet_state.sidecores) {
+ case 0:
+ list_for_each_entry(dev, &(vnet_state.devs), node) {
+ if(dev->vm == vm){
+ dev->dev_ops.poll(vm, dev->private_data);
+ }
+ }
+ break;
+ case 1:
+ break;
+ case 2:
+ list_for_each_entry(dev, &(vnet_state.devs), node) {
+ int cpu_id = vm->cores[0].cpu_id + 2; /* temporary here, should use vnet_state.cores_map */
+ struct v3_vnet_dev_xcall_args dev_args; /* could cause problem here -LX */
+ dev_args.vm = vm;
+ dev_args.private_data = dev->private_data;
+ V3_Call_On_CPU(cpu_id, dev->dev_ops.poll_xcall, (void *)&dev_args);
+ }
+ break;
+ default:
+ break;
+ }
+}
- if (v3_lock_init(&(vnet_state.lock)) == -1){
- PrintError("VNET: Failure to init lock for routes table\n");
+int v3_vnet_add_bridge(struct v3_vm_info * vm,
+ struct v3_vnet_bridge_ops *ops,
+ void * priv_data) {
+ unsigned long flags;
+ int bridge_free = 0;
+ struct vnet_brg_dev * tmp_bridge = NULL;
+
+ flags = v3_lock_irqsave(vnet_state.lock);
+
+ if (vnet_state.bridge == NULL) {
+ bridge_free = 1;
+ vnet_state.bridge = (void *)1;
}
- PrintDebug("VNET: Routes table initiated\n");
+ v3_unlock_irqrestore(vnet_state.lock, flags);
- /*initial pkt receiving queue */
- vnet_state.inpkt_q = v3_create_queue();
- v3_init_queue(vnet_state.inpkt_q);
- PrintDebug("VNET: Receiving queue initiated\n");
+ if (bridge_free == 0) {
+ PrintError("Bridge already set\n");
+ return -1;
+ }
- vnet_state.route_cache = v3_create_htable(0, &hash_fn, &hash_eq);
+ tmp_bridge = (struct vnet_brg_dev *)V3_Malloc(sizeof(struct vnet_brg_dev));
- if (vnet_state.route_cache == NULL) {
- PrintError("Vnet: Route Cache Init Fails\n");
- return -1;
+ if (tmp_bridge == NULL) {
+ PrintError("Malloc Fails\n");
+ vnet_state.bridge = NULL;
+ return -1;
}
+
+ tmp_bridge->vm = vm;
+ tmp_bridge->brg_ops.input = ops->input;
+ tmp_bridge->brg_ops.xcall_input = ops->xcall_input;
+ tmp_bridge->brg_ops.polling_pkt = ops->polling_pkt;
+ tmp_bridge->private_data = priv_data;
+ tmp_bridge->disabled = 0;
+
+ /* make this atomic to avoid possible race conditions */
+ flags = v3_lock_irqsave(vnet_state.lock);
+ vnet_state.bridge = tmp_bridge;
+ v3_unlock_irqrestore(vnet_state.lock, flags);
return 0;
}
+#if 0
+int v3_vnet_disable_bridge() {
+ unsigned long flags;
+
+ flags = v3_lock_irqsave(vnet_state.lock);
-#ifdef CONFIG_DEBUG_VNET
-
-static void print_packet(struct v3_vnet_pkt * pkt) {
- PrintDebug("Vnet: data_packet: size: %d\n", pkt->size);
- v3_hexdump(pkt->data, pkt->size, NULL, 0);
-}
+ if (vnet_state.bridge != NULL) {
+ vnet_state.bridge->disabled = 1;
+ }
+ v3_unlock_irqrestore(vnet_state.lock, flags);
-static inline void mac_to_string(char mac[6], char * buf) {
- snprintf(buf, 20, "%02x:%02x:%02x:%02x:%02x:%02x",
- mac[0], mac[1], mac[2],
- mac[3], mac[4], mac[5]);
+ return 0;
}
-static void print_route(struct routing_entry *route){
- char dest_str[18];
- char src_str[18];
+int v3_vnet_enable_bridge() {
+ unsigned long flags;
+
+ flags = v3_lock_irqsave(vnet_state.lock);
- mac_to_string(route->src_mac, src_str);
- mac_to_string(route->dest_mac, dest_str);
+ if (vnet_state.bridge != NULL) {
+ vnet_state.bridge->disabled = 0;
+ }
- PrintDebug("SRC(%s), DEST(%s), src_mac_qual(%d), dst_mac_qual(%d)\n",
- src_str,
- dest_str,
- route->src_mac_qual,
- route->dest_mac_qual);
- PrintDebug("Src_Link(%d), src_type(%d), dst_link(%d), dst_type(%d)\n\n",
- route->src_id,
- route->src_type,
- route->dst_id,
- route->dst_type);
+ v3_unlock_irqrestore(vnet_state.lock, flags);
+
+ return 0;
}
+#endif
+
+int v3_init_vnet() {
+ memset(&vnet_state, 0, sizeof(vnet_state));
+ INIT_LIST_HEAD(&(vnet_state.routes));
+ INIT_LIST_HEAD(&(vnet_state.devs));
-static void dump_routes(struct routing_entry **route_tables) {
- int i;
+ vnet_state.num_devs = 0;
+ vnet_state.num_routes = 0;
- PrintDebug("\nVnet: route table dump start =====\n");
+ PrintDebug("VNET: Links and Routes tables initiated\n");
- for(i = 0; i < MAX_ROUTES; i++) {
- if (route_tables[i] != NULL){
- print_route(route_tables[i]);
- }
+ if (v3_lock_init(&(vnet_state.lock)) == -1){
+ PrintError("VNET: Failure to init lock for routes table\n");
}
+ PrintDebug("VNET: Locks initiated\n");
- PrintDebug("\nVnet: route table dump end =====\n");
-}
+ vnet_state.route_cache = v3_create_htable(0, &hash_fn, &hash_eq);
-#endif
+ if (vnet_state.route_cache == NULL) {
+ PrintError("Vnet: Route Cache Init Fails\n");
+ return -1;
+ }
+
+ vnet_state.sidecores = 0;
+ vnet_state.cores_map = 0;
+
+ PrintDebug("VNET: initiated\n");
+
+ return 0;
+}
