*/
#include <vnet/vnet.h>
-#include <palacios/vm_guest_mem.h>
-#include <palacios/vmm_lock.h>
-#include <palacios/vmm_queue.h>
-#include <palacios/vmm_sprintf.h>
-#include <palacios/vmm_ethernet.h>
+#include <vnet/vnet_hashtable.h>
+#include <vnet/vnet_host.h>
+#include <vnet/vnet_vmm.h>
#ifndef V3_CONFIG_DEBUG_VNET
-#undef PrintDebug
-#define PrintDebug(fmt, args...)
+#undef Vnet_Debug
+#define Vnet_Debug(fmt, args...)
#endif
-int v3_net_debug = 0;
+int net_debug = 0;
struct eth_hdr {
uint8_t dst_mac[ETH_ALEN];
struct vnet_dev * dst_dev;
struct vnet_dev * src_dev;
+ uint32_t idx;
+
struct list_head node;
struct list_head match_node; // used for route matching
};
#define VNET_QUEUE_SIZE 1024
struct vnet_queue {
- struct queue_entry buf[VNET_QUEUE_SIZE];
- int head, tail;
- int count;
- v3_lock_t lock;
+ struct queue_entry buf[VNET_QUEUE_SIZE];
+ int head, tail;
+ int count;
+ vnet_lock_t lock;
};
static struct {
struct list_head routes;
struct list_head devs;
-
- int num_routes;
- int num_devs;
+
+ uint8_t status;
+
+ uint32_t num_routes;
+ uint32_t route_idx;
+ uint32_t num_devs;
+ uint32_t dev_idx;
struct vnet_brg_dev * bridge;
- v3_lock_t lock;
+ vnet_lock_t lock;
struct vnet_stat stats;
- void * pkt_flush_thread;
+ struct vnet_thread * pkt_flush_thread;
struct vnet_queue pkt_q;
#ifdef V3_CONFIG_DEBUG_VNET
-static inline void mac_to_string(uint8_t * mac, char * buf) {
+static inline void mac2str(uint8_t * mac, char * buf) {
snprintf(buf, 100, "%2x:%2x:%2x:%2x:%2x:%2x",
mac[0], mac[1], mac[2],
mac[3], mac[4], mac[5]);
static void print_route(struct v3_vnet_route * route){
char str[50];
- mac_to_string(route->src_mac, str);
- PrintDebug("Src Mac (%s), src_qual (%d)\n",
+ mac2str(route->src_mac, str);
+ Vnet_Debug("Src Mac (%s), src_qual (%d)\n",
str, route->src_mac_qual);
- mac_to_string(route->dst_mac, str);
- PrintDebug("Dst Mac (%s), dst_qual (%d)\n",
+ mac2str(route->dst_mac, str);
+ Vnet_Debug("Dst Mac (%s), dst_qual (%d)\n",
str, route->dst_mac_qual);
- PrintDebug("Src dev id (%d), src type (%d)",
+ Vnet_Debug("Src dev id (%d), src type (%d)",
route->src_id,
route->src_type);
- PrintDebug("Dst dev id (%d), dst type (%d)\n",
+ Vnet_Debug("Dst dev id (%d), dst type (%d)\n",
route->dst_id,
route->dst_type);
}
static void dump_routes(){
struct vnet_route_info *route;
- int i = 0;
- PrintDebug("\n========Dump routes starts ============\n");
+ Vnet_Debug("\n========Dump routes starts ============\n");
list_for_each_entry(route, &(vnet_state.routes), node) {
- PrintDebug("\nroute %d:\n", i++);
+ Vnet_Debug("\nroute %d:\n", route->idx);
print_route(&(route->route_def));
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",
+ Vnet_Debug("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),
}
}
- PrintDebug("\n========Dump routes end ============\n");
+ Vnet_Debug("\n========Dump routes end ============\n");
}
#endif
static inline uint_t hash_fn(addr_t hdr_ptr) {
uint8_t * hdr_buf = (uint8_t *)hdr_ptr;
- return v3_hash_buffer(hdr_buf, VNET_HASH_SIZE);
+ return vnet_hash_buffer(hdr_buf, VNET_HASH_SIZE);
}
static inline int hash_eq(addr_t key1, addr_t key2) {
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) {
+ if (vnet_htable_insert(vnet_state.route_cache, (addr_t)routes->hash_buf, (addr_t)routes) == 0) {
PrintError("VNET/P Core: Failed to insert new route entry to the cache\n");
return -1;
}
}
static int clear_hash_cache() {
- v3_free_htable(vnet_state.route_cache, 1, 1);
- vnet_state.route_cache = v3_create_htable(0, &hash_fn, &hash_eq);
+ vnet_free_htable(vnet_state.route_cache, 1, 1);
+ vnet_state.route_cache = vnet_create_htable(0, &hash_fn, &hash_eq);
return 0;
}
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->hash_buf));
+ *routes = (struct route_list *)vnet_htable_search(vnet_state.route_cache, (addr_t)(pkt->hash_buf));
return 0;
}
struct vnet_route_info * new_route = NULL;
unsigned long flags;
- new_route = (struct vnet_route_info *)V3_Malloc(sizeof(struct vnet_route_info));
+ new_route = (struct vnet_route_info *)Vnet_Malloc(sizeof(struct vnet_route_info));
memset(new_route, 0, sizeof(struct vnet_route_info));
#ifdef V3_CONFIG_DEBUG_VNET
- PrintDebug("VNET/P Core: add_route_entry:\n");
+ Vnet_Debug("VNET/P Core: add_route_entry:\n");
print_route(&route);
#endif
}
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
list_add(&(new_route->node), &(vnet_state.routes));
- clear_hash_cache();
+ new_route->idx = ++ vnet_state.route_idx;
+ vnet_state.num_routes ++;
+
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
- v3_unlock_irqrestore(vnet_state.lock, flags);
-
+ clear_hash_cache();
#ifdef V3_CONFIG_DEBUG_VNET
dump_routes();
#endif
- return 0;
+ return new_route->idx;
+}
+
+
+void v3_vnet_del_route(uint32_t route_idx){
+ struct vnet_route_info * route = NULL;
+ unsigned long flags;
+
+ flags = vnet_lock_irqsave(vnet_state.lock);
+
+ list_for_each_entry(route, &(vnet_state.routes), node) {
+ V3_Print("v3_vnet_del_route, route idx: %d\n", route->idx);
+ if(route->idx == route_idx){
+ list_del(&(route->node));
+ Vnet_Free(route);
+ break;
+ }
+ }
+
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
+ clear_hash_cache();
+
+#ifdef V3_CONFIG_DEBUG_VNET
+ dump_routes();
+#endif
}
struct vnet_route_info * route = NULL;
unsigned long flags;
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
list_for_each_entry(route, &(vnet_state.routes), node) {
if((route->route_def.dst_type == LINK_INTERFACE &&
list_del(&(route->node));
list_del(&(route->match_node));
- V3_Free(route);
+ Vnet_Free(route);
}
}
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
}
/* At the end allocate a route_list
int max_rank = 0;
struct list_head match_list;
struct eth_hdr * hdr = (struct eth_hdr *)(pkt->data);
- // uint8_t src_type = pkt->src_type;
+ // uint8_t src_type = pkt->src_type;
// uint32_t src_link = pkt->src_id;
#ifdef V3_CONFIG_DEBUG_VNET
char dst_str[100];
char src_str[100];
- mac_to_string(hdr->src_mac, src_str);
- mac_to_string(hdr->dst_mac, dst_str);
- PrintDebug("VNET/P Core: match_route. pkt: SRC(%s), DEST(%s)\n", src_str, dst_str);
+ mac2str(hdr->src_mac, src_str);
+ mac2str(hdr->dst_mac, dst_str);
+ Vnet_Debug("VNET/P Core: match_route. pkt: SRC(%s), DEST(%s)\n", src_str, dst_str);
}
#endif
}
}
- PrintDebug("VNET/P Core: match_route: Matches=%d\n", num_matches);
+ Vnet_Debug("VNET/P Core: match_route: Matches=%d\n", num_matches);
if (num_matches == 0) {
return NULL;
}
- matches = (struct route_list *)V3_Malloc(sizeof(struct route_list) +
- (sizeof(struct vnet_route_info *) * num_matches));
+ matches = (struct route_list *)Vnet_Malloc(sizeof(struct route_list) +
+ (sizeof(struct vnet_route_info *) * num_matches));
matches->num_routes = num_matches;
int i;
int cpu = V3_Get_CPU();
- V3_Net_Print(2, "VNET/P Core: cpu %d: pkt (size %d, src_id:%d, src_type: %d, dst_id: %d, dst_type: %d)\n",
+ Vnet_Print(2, "VNET/P Core: cpu %d: pkt (size %d, src_id:%d, src_type: %d, dst_id: %d, dst_type: %d)\n",
cpu, pkt->size, pkt->src_id,
pkt->src_type, pkt->dst_id, pkt->dst_type);
- if(v3_net_debug >= 4){
+ if(net_debug >= 4){
v3_hexdump(pkt->data, pkt->size, NULL, 0);
}
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
vnet_state.stats.rx_bytes += pkt->size;
vnet_state.stats.rx_pkts++;
look_into_cache(pkt, &matched_routes);
if (matched_routes == NULL) {
- PrintDebug("VNET/P Core: send pkt Looking into routing table\n");
+ Vnet_Debug("VNET/P Core: send pkt Looking into routing table\n");
matched_routes = match_route(pkt);
if (matched_routes) {
add_route_to_cache(pkt, matched_routes);
} else {
- PrintDebug("VNET/P Core: Could not find route for packet... discards packet\n");
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ Vnet_Debug("VNET/P Core: Could not find route for packet... discards packet\n");
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
return 0; /* do we return -1 here?*/
}
}
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
- PrintDebug("VNET/P Core: send pkt route matches %d\n", matched_routes->num_routes);
+ Vnet_Debug("VNET/P Core: 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];
pkt->dst_id = route->route_def.dst_id;
if (bridge == NULL) {
- V3_Net_Print(2, "VNET/P Core: No active bridge to sent data to\n");
- continue;
+ Vnet_Print(2, "VNET/P Core: No active bridge to sent data to\n");
+ continue;
}
if(bridge->brg_ops.input(bridge->vm, pkt, bridge->private_data) < 0){
- V3_Net_Print(2, "VNET/P Core: Packet not sent properly to bridge\n");
+ Vnet_Print(2, "VNET/P Core: Packet not sent properly to bridge\n");
continue;
}
vnet_state.stats.tx_bytes += pkt->size;
vnet_state.stats.tx_pkts ++;
} else if (route->route_def.dst_type == LINK_INTERFACE) {
if (route->dst_dev == NULL){
- V3_Net_Print(2, "VNET/P Core: No active device to sent data to\n");
+ Vnet_Print(2, "VNET/P Core: No active device to sent data to\n");
continue;
}
if(route->dst_dev->dev_ops.input(route->dst_dev->vm, pkt, route->dst_dev->private_data) < 0) {
- V3_Net_Print(2, "VNET/P Core: Packet not sent properly\n");
+ Vnet_Print(2, "VNET/P Core: Packet not sent properly\n");
continue;
}
vnet_state.stats.tx_bytes += pkt->size;
vnet_state.stats.tx_pkts ++;
} else {
- PrintError("VNET/P Core: Wrong dst type\n");
+ Vnet_Print(0, "VNET/P Core: Wrong dst type\n");
}
}
struct vnet_queue * q = &(vnet_state.pkt_q);
uint16_t num_pages;
- flags = v3_lock_irqsave(q->lock);
+ flags = vnet_lock_irqsave(q->lock);
if (q->count >= VNET_QUEUE_SIZE){
- V3_Net_Print(1, "VNET Queue overflow!\n");
- v3_unlock_irqrestore(q->lock, flags);
+ Vnet_Print(1, "VNET Queue overflow!\n");
+ vnet_unlock_irqrestore(q->lock, flags);
return -1;
}
entry = &(q->buf[q->tail++]);
q->tail %= VNET_QUEUE_SIZE;
- v3_unlock_irqrestore(q->lock, flags);
+ vnet_unlock_irqrestore(q->lock, flags);
/* this is ugly, but should happen very unlikely */
while(entry->use);
if(entry->size_alloc < pkt->size){
if(entry->data != NULL){
- V3_FreePages(V3_PAddr(entry->data), (entry->size_alloc / PAGE_SIZE));
+ Vnet_FreePages(Vnet_PAddr(entry->data), (entry->size_alloc / PAGE_SIZE));
entry->data = NULL;
}
num_pages = 1 + (pkt->size / PAGE_SIZE);
- entry->data = V3_VAddr(V3_AllocPages(num_pages));
+ entry->data = Vnet_VAddr(Vnet_AllocPages(num_pages));
if(entry->data == NULL){
return -1;
}
vnet_tx_one_pkt(pkt, NULL);
}else {
vnet_pkt_enqueue(pkt);
- V3_Net_Print(2, "VNET/P Core: Put pkt into Queue: pkt size %d\n", pkt->size);
+ Vnet_Print(2, "VNET/P Core: Put pkt into Queue: pkt size %d\n", pkt->size);
}
return 0;
struct vnet_dev * new_dev = NULL;
unsigned long flags;
- new_dev = (struct vnet_dev *)V3_Malloc(sizeof(struct vnet_dev));
+ new_dev = (struct vnet_dev *)Vnet_Malloc(sizeof(struct vnet_dev));
if (new_dev == NULL) {
- PrintError("Malloc fails\n");
+ Vnet_Print(0, "Malloc fails\n");
return -1;
}
new_dev->vm = vm;
new_dev->dev_id = 0;
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
if (dev_by_mac(mac) == NULL) {
list_add(&(new_dev->node), &(vnet_state.devs));
- new_dev->dev_id = ++vnet_state.num_devs;
+ new_dev->dev_id = ++ vnet_state.dev_idx;
+ vnet_state.num_devs ++;
}
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
/* if the device was found previosly the id should still be 0 */
if (new_dev->dev_id == 0) {
- PrintError("VNET/P Core: Device Already exists\n");
+ Vnet_Print(0, "VNET/P Core: Device Already exists\n");
return -1;
}
- PrintDebug("VNET/P Core: Add Device: dev_id %d\n", new_dev->dev_id);
+ Vnet_Debug("VNET/P Core: Add Device: dev_id %d\n", new_dev->dev_id);
return new_dev->dev_id;
}
struct vnet_dev * dev = NULL;
unsigned long flags;
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
dev = dev_by_id(dev_id);
if (dev != NULL){
list_del(&(dev->node));
- del_routes_by_dev(dev_id);
+ //del_routes_by_dev(dev_id);
+ vnet_state.num_devs --;
}
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
- V3_Free(dev);
+ Vnet_Free(dev);
- PrintDebug("VNET/P Core: Remove Device: dev_id %d\n", dev_id);
+ Vnet_Debug("VNET/P Core: Remove Device: dev_id %d\n", dev_id);
return 0;
}
int v3_vnet_stat(struct vnet_stat * stats){
-
stats->rx_bytes = vnet_state.stats.rx_bytes;
stats->rx_pkts = vnet_state.stats.rx_pkts;
stats->tx_bytes = vnet_state.stats.tx_bytes;
return 0;
}
-static void free_devices(){
+static void deinit_devices_list(){
struct vnet_dev * dev = NULL;
list_for_each_entry(dev, &(vnet_state.devs), node) {
list_del(&(dev->node));
- V3_Free(dev);
+ Vnet_Free(dev);
}
}
-static void free_routes(){
+static void deinit_routes_list(){
struct vnet_route_info * route = NULL;
list_for_each_entry(route, &(vnet_state.routes), node) {
list_del(&(route->node));
list_del(&(route->match_node));
- V3_Free(route);
+ Vnet_Free(route);
}
}
int bridge_free = 0;
struct vnet_brg_dev * tmp_bridge = NULL;
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
if (vnet_state.bridge == NULL) {
bridge_free = 1;
vnet_state.bridge = (void *)1;
}
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
if (bridge_free == 0) {
PrintError("VNET/P Core: Bridge already set\n");
return -1;
}
- tmp_bridge = (struct vnet_brg_dev *)V3_Malloc(sizeof(struct vnet_brg_dev));
+ tmp_bridge = (struct vnet_brg_dev *)Vnet_Malloc(sizeof(struct vnet_brg_dev));
if (tmp_bridge == NULL) {
PrintError("Malloc Fails\n");
tmp_bridge->type = type;
/* make this atomic to avoid possible race conditions */
- flags = v3_lock_irqsave(vnet_state.lock);
+ flags = vnet_lock_irqsave(vnet_state.lock);
vnet_state.bridge = tmp_bridge;
- v3_unlock_irqrestore(vnet_state.lock, flags);
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
return 0;
}
-#if 0
+
+void v3_vnet_del_bridge(uint8_t type) {
+ unsigned long flags;
+ struct vnet_brg_dev * tmp_bridge = NULL;
+
+ flags = vnet_lock_irqsave(vnet_state.lock);
+
+ if (vnet_state.bridge != NULL && vnet_state.bridge->type == type) {
+ tmp_bridge = vnet_state.bridge;
+ vnet_state.bridge = NULL;
+ }
+
+ vnet_unlock_irqrestore(vnet_state.lock, flags);
+
+ if (tmp_bridge) {
+ Vnet_Free(tmp_bridge);
+ }
+}
+
+
static int vnet_tx_flush(void *args){
unsigned long flags;
struct queue_entry * entry;
struct vnet_queue * q = &(vnet_state.pkt_q);
- V3_Print("VNET/P Handing Pkt Thread Starting ....\n");
+ Vnet_Print(0, "VNET/P Handing Pkt Thread Starting ....\n");
- //V3_THREAD_SLEEP();
/* we need thread sleep/wakeup in Palacios */
- while(1){
- flags = v3_lock_irqsave(q->lock);
+ while(!vnet_thread_should_stop()){
+ flags = vnet_lock_irqsave(q->lock);
if (q->count <= 0){
- v3_unlock_irqrestore(q->lock, flags);
- v3_yield(NULL);
- //V3_THREAD_SLEEP();
+ vnet_unlock_irqrestore(q->lock, flags);
+ Vnet_Yield();
}else {
q->count --;
entry = &(q->buf[q->head++]);
q->head %= VNET_QUEUE_SIZE;
- v3_unlock_irqrestore(q->lock, flags);
+ vnet_unlock_irqrestore(q->lock, flags);
/* this is ugly, but should happen very unlikely */
while(!entry->use);
/* asynchronizely release allocated memory for buffer entry here */
entry->use = 0;
- V3_Net_Print(2, "vnet_tx_flush: pkt (size %d)\n", entry->pkt.size);
+ Vnet_Print(2, "vnet_tx_flush: pkt (size %d)\n", entry->pkt.size);
}
}
+
+ return 0;
}
-#endif
int v3_init_vnet() {
memset(&vnet_state, 0, sizeof(vnet_state));
vnet_state.num_devs = 0;
vnet_state.num_routes = 0;
- if (v3_lock_init(&(vnet_state.lock)) == -1){
+ if (vnet_lock_init(&(vnet_state.lock)) == -1){
PrintError("VNET/P Core: Fails to initiate lock\n");
}
- vnet_state.route_cache = v3_create_htable(0, &hash_fn, &hash_eq);
+ vnet_state.route_cache = vnet_create_htable(0, &hash_fn, &hash_eq);
if (vnet_state.route_cache == NULL) {
PrintError("VNET/P Core: Fails to initiate route cache\n");
return -1;
}
- v3_lock_init(&(vnet_state.pkt_q.lock));
+ vnet_lock_init(&(vnet_state.pkt_q.lock));
- //vnet_state.pkt_flush_thread = V3_CREATE_THREAD(vnet_tx_flush, NULL, "VNET_Pkts");
+ vnet_state.pkt_flush_thread = vnet_start_thread(vnet_tx_flush, NULL, "VNET_Pkts");
- PrintDebug("VNET/P Core is initiated\n");
+ Vnet_Debug("VNET/P Core is initiated\n");
return 0;
}
void v3_deinit_vnet(){
- v3_lock_deinit(&(vnet_state.lock));
+ vnet_lock_deinit(&(vnet_state.lock));
- free_devices();
- free_routes();
+ deinit_devices_list();
+ deinit_routes_list();
- v3_free_htable(vnet_state.route_cache, 1, 1);
- V3_Free(vnet_state.bridge);
+ vnet_free_htable(vnet_state.route_cache, 1, 1);
+ Vnet_Free(vnet_state.bridge);
}