X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fpalacios%2Fvmm_vnet.c;h=e26373536a87c9c0b1371f470778411782e54bc0;hb=39b4fae9c539fbd848edd786500e60aae17b84a0;hp=bf3b2c6785ad857a7f32d348993b43fb7a5a2864;hpb=30409ee6691f594c5d8b0a2be0769d163d4c7c1a;p=palacios-OLD.git diff --git a/palacios/src/palacios/vmm_vnet.c b/palacios/src/palacios/vmm_vnet.c index bf3b2c6..e263735 100644 --- a/palacios/src/palacios/vmm_vnet.c +++ b/palacios/src/palacios/vmm_vnet.c @@ -7,25 +7,23 @@ * and the University of New Mexico. You can find out more at * http://www.v3vee.org * - * Copyright (c) 2009, Lei Xia - * Copyright (c) 2009, Yuan Tang - * Copyright (c) 2009, Jack Lange - * Copyright (c) 2009, Peter Dinda + * Copyright (c) 2010, Lei Xia + * Copyright (c) 2009, Yuan Tang * Copyright (c) 2009, The V3VEE Project * All rights reserved. * * Author: Lei Xia * Yuan Tang - * Jack Lange - * Peter Dinda -#include #include +#include +#include +#include #ifndef CONFIG_DEBUG_VNET #undef PrintDebug @@ -33,982 +31,718 @@ #endif -struct ethernet_pkt { - uint32_t size; //size of data +/* for UDP encapuslation */ +struct eth_header { + uchar_t dest[6]; + uchar_t src[6]; uint16_t type; - struct udp_link_header ext_hdr; //possible externel header to applied to data before sent - char data[ETHERNET_PACKET_LEN]; -}; +}__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)); -// 14 (ethernet frame) + 20 bytes -struct in_pkt_header { - char ethernetdest[6]; - char ethernetsrc[6]; - unsigned char ethernettype[2]; //layer 3 protocol type - char ip[20]; -}; +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)); -#define VNET_INITAB_HCALL 0xca00 // inital hypercall id +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 */ -#define MAX_LINKS 10 -#define MAX_ROUTES 10 -#define HASH_KEY_LEN 16 -#define MIN_CACHE_SIZE 100 -static const uint_t hash_key_size = 16; -struct link_table { - struct link_entry * links[MAX_LINKS]; - uint16_t size; -}; -struct routing_table { - struct routing_entry * routes[MAX_ROUTES]; - uint16_t size; -}; -static struct link_table g_links; -static struct routing_table g_routes; -static struct gen_queue * g_inpkt_q; +struct eth_hdr { + uint8_t dst_mac[6]; + uint8_t src_mac[6]; + uint16_t type; /* indicates layer 3 protocol type */ +} __attribute__((packed)); -/* Hash key format: - * 0-5: src_eth_addr - * 6-11: dest_eth_addr - * 12: src type - * 13-16: src index - */ -typedef char * route_hashkey_t; -// This is the hash value, Format: 0: num_matched_routes, 1...n: matches[] -- TY -struct route_cache_entry { - int num_matched_routes; - int * matches; +struct vnet_dev { + int dev_id; + uint8_t mac_addr[6]; + struct v3_vm_info * vm; + struct v3_vnet_dev_ops dev_ops; + void * private_data; + + int rx_disabled; + + 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 vnet_route_info { + struct v3_vnet_route route_def; + + struct vnet_dev * dst_dev; + struct vnet_dev * src_dev; + + struct list_head node; + struct list_head match_node; // used for route matching }; -// the route cache -static struct hashtable * g_route_cache; +struct route_list { + uint8_t hash_buf[VNET_HASH_SIZE]; -static void print_packet(uchar_t *pkt, int size) { - PrintDebug("Vnet: print_data_packet: size: %d\n", size); - v3_hexdump(pkt, size, NULL, 0); -} + uint32_t num_routes; + struct vnet_route_info * routes[0]; +} __attribute__((packed)); -#if 0 -static void print_packet_addr(char * pkt) { - PrintDebug("Vnet: print_packet_destination_addr: "); - v3_hexdump(pkt + 8, 6, NULL, 0); - - PrintDebug("Vnet: print_packet_source_addr: "); - v3_hexdump(pkt + 14, 6, NULL, 0); -} -static void print_device_addr(char * ethaddr) { - PrintDebug("Vnet: print_device_addr: "); - v3_hexdump(ethaddr, 6, NULL, 0); -} -#endif +#define BUF_SIZE 4096 +struct pkts_buf { + int start, end; + int num; + v3_lock_t lock; + struct v3_vnet_pkt pkts[BUF_SIZE]; +}; -static uint16_t ip_xsum(struct ip_header *ip_hdr, int hdr_len){ - long sum = 0; - uint16_t *p = (uint16_t*) ip_hdr; - while(hdr_len > 1){ - sum += *(p++); - if(sum & 0x80000000) - sum = (sum & 0xFFFF) + (sum >> 16); - hdr_len -= 2; - } - - if(hdr_len) - sum += (uint16_t) *(uchar_t *)p; - - while(sum>>16) - sum = (sum & 0xFFFF) + (sum >> 16); +static struct { + struct list_head routes; + struct list_head devs; + + int num_routes; + int num_devs; - return (uint16_t)~sum; -} + struct vnet_brg_dev *bridge; -static inline void ethernet_packet_init(struct ethernet_pkt *pt, uchar_t *data, const size_t size) { - pt->size = size; - memcpy(pt->data, data, size); -} + v3_lock_t lock; -static uint_t hash_from_key_fn(addr_t hashkey) { - uint8_t * key = (uint8_t *)hashkey; - return v3_hash_buffer(key, HASH_KEY_LEN); -} + 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 */ -static int hash_key_equal(addr_t key1, addr_t key2) { - uint8_t * buf1 = (uint8_t *)key1; - uint8_t * buf2 = (uint8_t *)key2; - return (memcmp(buf1, buf2, HASH_KEY_LEN) == 0); -} + struct hashtable * route_cache; +} vnet_state; -static int init_route_cache() { - g_route_cache = v3_create_htable(MIN_CACHE_SIZE, &hash_from_key_fn, &hash_key_equal); - if (g_route_cache == NULL) { - PrintError("Vnet: Route Cache Initiate Failurely\n"); - return -1; - } - return 0; + +#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 make_hash_key(route_hashkey_t hashkey, - char src_addr[6], - char dest_addr[6], - char src_type, - int src_index) { - int j; +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 - for (j = 0; j < 6; j++) { - hashkey[j] = src_addr[j]; - hashkey[j + 6] = dest_addr[j] + 1; - } - hashkey[12] = src_type; +/* + * 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; - *(int *)(hashkey + 12) = src_index; + return v3_hash_buffer(hdr_buf, VNET_HASH_SIZE); } -static int add_route_to_cache(route_hashkey_t hashkey, int num_matched_r, int * matches) { - struct route_cache_entry * new_entry = NULL; - int i; - - new_entry = (struct route_cache_entry *)V3_Malloc(sizeof(struct route_cache_entry)); - if (new_entry == NULL) { - PrintError("Vnet: Malloc fails\n"); - return -1; - } - - new_entry->num_matched_routes = num_matched_r; +static inline int hash_eq(addr_t key1, addr_t key2) { + return (memcmp((uint8_t *)key1, (uint8_t *)key2, VNET_HASH_SIZE) == 0); +} - new_entry->matches = (int *)V3_Malloc(num_matched_r * sizeof(int)); - - if (new_entry->matches == NULL) { - PrintError("Vnet: Malloc fails\n"); +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) { + PrintError("Vnet: Failed to insert new route entry to the cache\n"); return -1; } - for (i = 0; i < num_matched_r; i++) { - new_entry->matches[i] = matches[i]; - } - - // here, when v3_htable_insert return 0, it means insert fails - if (v3_htable_insert(g_route_cache, (addr_t)hashkey, (addr_t)new_entry) == 0) { - PrintError("Vnet: Insert new route entry to cache failed\n"); - V3_Free(new_entry->matches); - V3_Free(new_entry); - } - return 0; } static int clear_hash_cache() { - v3_free_htable(g_route_cache, 1, 1); - - g_route_cache = v3_create_htable(MIN_CACHE_SIZE, hash_from_key_fn, hash_key_equal); - - if (g_route_cache == NULL) { - PrintError("Vnet: Route Cache Create Failurely\n"); - return -1; - } + + 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(route_hashkey_t hashkey, int * matches) { - struct route_cache_entry * found = NULL; - int n_matches = -1; - int i = 0; +static int look_into_cache(const struct v3_vnet_pkt * pkt, struct route_list ** routes) { - found = (struct route_cache_entry *)v3_htable_search(g_route_cache, (addr_t)hashkey); + *routes = (struct route_list *)v3_htable_search(vnet_state.route_cache, (addr_t)(pkt->hash_buf)); - if (found != NULL) { - n_matches = found->num_matched_routes; - - for (i = 0; i < n_matches; i++) { - matches[i] = found->matches[i]; - } - } - - return n_matches; + return 0; } -#ifdef CONFIG_DEBUG_VNET -static inline uint8_t hex_nybble_to_nybble(const uint8_t hexnybble) { - uint8_t x = toupper(hexnybble); - if (isdigit(x)) { - return x - '0'; - } else { - return 10 + (x - 'A'); - } -} - -static inline uint8_t hex_byte_to_byte(const uint8_t hexbyte[2]) { - return ((hex_nybble_to_nybble(hexbyte[0]) << 4) + - (hex_nybble_to_nybble(hexbyte[1]) & 0xf)); -} +static struct vnet_dev * find_dev_by_id(int idx) { + struct vnet_dev * dev = NULL; -static inline void string_to_mac(const char *str, uint8_t mac[6]) { - int k; + list_for_each_entry(dev, &(vnet_state.devs), node) { + int dev_id = dev->dev_id; - for (k = 0; k < 6; k++) { - mac[k] = hex_byte_to_byte(&(str[(2 * k) + k])); + if (dev_id == idx) + return dev; } -} -static inline void mac_to_string(char mac[6], char * buf) { - snprintf(buf, 20, "%x:%x:%x:%x:%x:%x", - mac[0], mac[1], mac[2], - mac[3], mac[4], mac[5]); + return NULL; } -#endif -static int __add_link_entry(struct link_entry * link) { - int idx; +static struct vnet_dev * find_dev_by_mac(char mac[6]) { + struct vnet_dev * dev = NULL; - for (idx = 0; idx < MAX_LINKS; idx++) { - if (g_links.links[idx] == NULL) { - g_links.links[idx] = link; - g_links.size++; - - return idx; - } - } - - PrintError("No available Link entry\n"); - return -1; -} - -static int __add_route_entry(struct routing_entry * route) { - int idx; - - for (idx = 0; idx < MAX_ROUTES; idx++) { - if (g_routes.routes[idx] == NULL) { - g_routes.routes[idx] = route; - g_routes.size++; - - return idx; - } + list_for_each_entry(dev, &(vnet_state.devs), node) { + if (!memcmp(dev->mac_addr, mac, 6)) + return dev; } - PrintError("No available route entry\n"); - return -1; + return NULL; } +int v3_vnet_id_by_mac(char mac[6]){ -static int vnet_add_route_entry(char src_mac[6], - char dest_mac[6], - int src_mac_qual, - int dest_mac_qual, - int link_idx, - link_type_t link_type, - int src, - link_type_t src_type) { - struct routing_entry * new_route = (struct routing_entry *)V3_Malloc(sizeof(struct routing_entry)); - int idx = -1; + struct vnet_dev *dev = find_dev_by_mac(mac); - memset(new_route, 0, sizeof(struct routing_entry)); + if (dev == NULL) + return -1; - if ((src_mac_qual != MAC_ANY) && (src_mac_qual != MAC_NONE)) { - memcpy(new_route->src_mac, src_mac, 6); - } - - if ((dest_mac_qual != MAC_ANY) && (dest_mac_qual != MAC_NONE)) { - memcpy(new_route->dest_mac, dest_mac, 6); - } - - new_route->src_mac_qual = src_mac_qual; - new_route->dest_mac_qual = dest_mac_qual; - new_route->link_idx= link_idx; - new_route->link_type = link_type; - new_route->src_link_idx = src; - new_route->src_type = src_type; - - if ((idx = __add_route_entry(new_route)) == -1) { - PrintError("Could not add route entry\n"); - return -1; - } - - clear_hash_cache(); - - return idx; + return dev->dev_id; } -static void * __delete_link_entry(int index) { - struct link_entry * link = NULL; - void * ret = NULL; - link_type_t type; - - if ((index >= MAX_LINKS) || (g_links.links[index] == NULL)) { - return NULL; - } - - link = g_links.links[index]; - type = g_links.links[index]->type; - if (type == LINK_INTERFACE) { - ret = (void *)g_links.links[index]->dst_dev; - } else if (type == LINK_EDGE) { - ret = (void *)g_links.links[index]->dst_link; - } +int v3_vnet_add_route(struct v3_vnet_route route) { + struct vnet_route_info * new_route = NULL; + unsigned long flags; - g_links.links[index] = NULL; - g_links.size--; - - V3_Free(link); - - return ret; -} + new_route = (struct vnet_route_info *)V3_Malloc(sizeof(struct vnet_route_info)); + memset(new_route, 0, sizeof(struct vnet_route_info)); -static int find_route_entry(char src_mac[6], - char dest_mac[6], - int src_mac_qual, - int dest_mac_qual, - int link_idx, - link_type_t link_type, - int src, - link_type_t src_type) { - int i; - char temp_src_mac[6]; - char temp_dest_mac[6]; - - if ((src_mac_qual != MAC_ANY) && (src_mac_qual != MAC_NONE)) { - memcpy(temp_src_mac, src_mac, 6); - } else { - memset(temp_src_mac, 0, 6); - } - - if ((dest_mac_qual != MAC_ANY) && (dest_mac_qual != MAC_NONE)) { - memcpy(temp_dest_mac, dest_mac, 6); - } else { - memset(temp_dest_mac, 0, 6); - } + PrintDebug("Vnet: vnet_add_route_entry: dst_id: %d, dst_type: %d\n", + route.dst_id, route.dst_type); - for (i = 0; i < MAX_ROUTES; i++) { - if (g_routes.routes[i] != NULL) { - if ((memcmp(temp_src_mac, g_routes.routes[i]->src_mac, 6) == 0) && - (memcmp(temp_dest_mac, g_routes.routes[i]->dest_mac, 6) == 0) && - (g_routes.routes[i]->src_mac_qual == src_mac_qual) && - (g_routes.routes[i]->dest_mac_qual == dest_mac_qual) && - ( (link_type == LINK_ANY) || - ((link_type == g_routes.routes[i]->link_type) && (g_routes.routes[i]->link_idx == link_idx))) && - ( (src_type == LINK_ANY) || - ((src_type == g_routes.routes[i]->src_type) && (g_routes.routes[i]->src_link_idx == src)))) { - return i; - } - } - } - - return -1; -} + 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; -static int __delete_route_entry(int index) { - struct routing_entry * route; - - if ((index >= MAX_ROUTES) || (g_routes.routes[index] == NULL)) { - PrintDebug("VNET: wrong index in delete route entry %d\n", index); - return -1; + if (new_route->route_def.dst_type == LINK_INTERFACE) { + new_route->dst_dev = find_dev_by_id(new_route->route_def.dst_id); } - route = g_routes.routes[index]; - g_routes.routes[index] = NULL; - g_routes.size--; + if (new_route->route_def.src_type == LINK_INTERFACE) { + new_route->src_dev = find_dev_by_id(new_route->route_def.src_id); + } - V3_Free(route); + flags = v3_lock_irqsave(vnet_state.lock); + list_add(&(new_route->node), &(vnet_state.routes)); clear_hash_cache(); - - return 0; -} -static int vnet_delete_route_entry_by_addr(char src_mac[6], - char dest_mac[6], - int src_mac_qual, - int dest_mac_qual, - int link_idx, - link_type_t type, - int src, - link_type_t src_type) { - int index = find_route_entry(src_mac, dest_mac, src_mac_qual, - dest_mac_qual, link_idx, type, src, src_type); - - if (index == -1) { - PrintDebug("VNET: wrong in delete route entry %d\n", index); - return -1; - } - - return __delete_route_entry(index); -} + v3_unlock_irqrestore(vnet_state.lock, flags); + -static int match_route(uint8_t * src_mac, - uint8_t * dst_mac, - link_type_t src_type, - int src_index, - int * matches) { - int values[MAX_ROUTES]; - int matched_routes[MAX_ROUTES]; - - int num_matches = 0; - int i; - int max = 0; - int no = 0; - int exact_match = 0; - - for(i = 0; i < MAX_ROUTES; i++) { - if (g_routes.routes[i] != NULL){ - if ( (g_routes.routes[i]->src_type != LINK_ANY) && - ( (g_routes.routes[i]->src_type != src_type) || - ( (g_routes.routes[i]->src_link_idx != src_index) && - (g_routes.routes[i]->src_link_idx != -1)))) { - PrintDebug("Vnet: MatchRoute: Source route is on and does not match\n"); - continue; - } - - if ( (g_routes.routes[i]->dest_mac_qual == MAC_ANY) && - (g_routes.routes[i]->src_mac_qual == MAC_ANY)) { +#ifdef CONFIG_DEBUG_VNET + dump_routes(); +#endif - matched_routes[num_matches] = i; - values[num_matches] = 3; - num_matches++; - } - - if (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) { - if (g_routes.routes[i]->src_mac_qual != MAC_NOT) { - if (g_routes.routes[i]->dest_mac_qual == MAC_ANY) { - matched_routes[num_matches] = i; - values[num_matches] = 6; - - num_matches++; - } else if (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) == 0) { - if (g_routes.routes[i]->dest_mac_qual != MAC_NOT) { - matched_routes[num_matches] = i; - values[num_matches] = 8; - exact_match = 1; - num_matches++; - } - } - } - } - - if (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) == 0) { - if (g_routes.routes[i]->dest_mac_qual != MAC_NOT) { - if (g_routes.routes[i]->src_mac_qual == MAC_ANY) { - matched_routes[num_matches] = i; - values[num_matches] = 6; - - num_matches++; - } else if (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) { - if (g_routes.routes[i]->src_mac_qual != MAC_NOT) { - if (exact_match == 0) { - matched_routes[num_matches] = i; - values[num_matches] = 8; - num_matches++; - } - } - } - } - } - - if ( (g_routes.routes[i]->dest_mac_qual == MAC_NOT) && - (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) != 0)) { - if (g_routes.routes[i]->src_mac_qual == MAC_ANY) { - matched_routes[num_matches] = i; - values[num_matches] = 5; - num_matches++; - } else if (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) { - if (g_routes.routes[i]->src_mac_qual != MAC_NOT) { - matched_routes[num_matches] = i; - values[num_matches] = 7; - num_matches++; - } - } - } - - if ( (g_routes.routes[i]->src_mac_qual == MAC_NOT) && - (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) != 0)) { - if (g_routes.routes[i]->dest_mac_qual == MAC_ANY) { - matched_routes[num_matches] = i; - values[num_matches] = 5; - num_matches++; - } else if (memcmp((void *)&g_routes.routes[i]->dest_mac, (void *)dst_mac, 6) == 0) { - if (g_routes.routes[i]->dest_mac_qual != MAC_NOT) { - matched_routes[num_matches] = i; - values[num_matches] = 7; - num_matches++; - } - } - } - } - } // end for - - for (i = 0; i < MAX_ROUTES; i++) { - if ( (memcmp((void *)&g_routes.routes[i]->src_mac, (void *)src_mac, 6) == 0) && - (g_routes.routes[i]->dest_mac_qual == MAC_NONE) && - ( (g_routes.routes[i]->src_type == LINK_ANY) || - ( (g_routes.routes[i]->src_type == src_type) && - ( (g_routes.routes[i]->src_link_idx == src_index) || - (g_routes.routes[i]->src_link_idx == -1))))) { - matched_routes[num_matches] = i; - values[num_matches] = 4; - PrintDebug("Vnet: MatchRoute: We matched a default route (%d)\n", i); - num_matches++; - } - } - - //If many rules have been matched, we choose one which has the highest value rating - if (num_matches == 0) { - return 0; - } - - for (i = 0; i < num_matches; i++) { - if (values[i] > max) { - no = 0; - max = values[i]; - matches[no] = matched_routes[i]; - no++; - } else if (values[i] == max) { - matches[no] = matched_routes[i]; - no++; - } - } - - return no; + return 0; } -static int handle_one_pkt(struct ethernet_pkt *pkt) { - int src_link_index = -1; //the value of src_link_index of udp always is 0 - int i; - char src_mac[6]; - char dst_mac[6]; - - int matches[MAX_ROUTES]; - int num_matched_routes = 0; - struct in_pkt_header header; - char hash_key[hash_key_size]; - - // get the ethernet and ip headers from the packet - memcpy((void *)&header, (void *)pkt->data, sizeof(header)); - memcpy(src_mac, header.ethernetsrc, 6); - memcpy(dst_mac, header.ethernetdest, 6); +/* 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; + 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; + uint32_t src_link = pkt->src_id; #ifdef CONFIG_DEBUG_VNET - char dest_str[18]; - char src_str[18]; - - mac_to_string(src_mac, src_str); - mac_to_string(dst_mac, dest_str); - - PrintDebug("Vnet: HandleDataOverLink. SRC(%s), DEST(%s)\n", src_str, dest_str); -#endif + { + char dst_str[100]; + char src_str[100]; - // link_edge -> pt->type??? - make_hash_key(hash_key, src_mac, dst_mac, LINK_EDGE, src_link_index); - - num_matched_routes = look_into_cache((route_hashkey_t)hash_key, matches); - - if (num_matched_routes == -1) { - // no match in the cache - num_matched_routes = match_route(src_mac, dst_mac, LINK_ANY, src_link_index, matches); - - if (num_matched_routes > 0) { - add_route_to_cache(hash_key, num_matched_routes,matches); - } + mac_to_string(hdr->src_mac, src_str); + mac_to_string(hdr->dst_mac, dst_str); + PrintDebug("Vnet: match_route. pkt: SRC(%s), DEST(%s)\n", src_str, dst_str); } - - PrintDebug("Vnet: HandleDataOverLink: Matches=%d\n", num_matched_routes); - - for (i = 0; i < num_matched_routes; i++) {//send packet to all destinations - int route_index = -1; - int link_index = -1; - int pkt_len = 0; - struct link_entry * link = NULL; +#endif + + INIT_LIST_HEAD(&match_list); + +#define UPDATE_MATCHES(rank) do { \ + if (max_rank < (rank)) { \ + max_rank = (rank); \ + INIT_LIST_HEAD(&match_list); \ + \ + list_add(&(route->match_node), &match_list); \ + num_matches = 1; \ + } else if (max_rank == (rank)) { \ + list_add(&(route->match_node), &match_list); \ + num_matches++; \ + } \ + } while (0) + + + list_for_each_entry(route, &(vnet_state.routes), node) { + struct v3_vnet_route * route_def = &(route->route_def); + + // CHECK SOURCE TYPE HERE + if ( (route_def->src_type != LINK_ANY) && + ( (route_def->src_type != src_type) || + ( (route_def->src_id != src_link) && + (route_def->src_id != (uint32_t)-1)))) { + continue; + } + - route_index = matches[i]; + if ((route_def->dst_mac_qual == MAC_ANY) && + (route_def->src_mac_qual == MAC_ANY)) { + UPDATE_MATCHES(3); + } - PrintDebug("Vnet: HandleDataOverLink: Forward packet from link according to Route entry %d\n", route_index); + if (memcmp(route_def->src_mac, hdr->src_mac, 6) == 0) { + if (route_def->src_mac_qual != MAC_NOT) { + if (route_def->dst_mac_qual == MAC_ANY) { + UPDATE_MATCHES(6); + } else if (route_def->dst_mac_qual != MAC_NOT && + memcmp(route_def->dst_mac, hdr->dst_mac, 6) == 0) { + UPDATE_MATCHES(8); + } + } + } + + if (memcmp(route_def->dst_mac, hdr->dst_mac, 6) == 0) { + if (route_def->dst_mac_qual != MAC_NOT) { + if (route_def->src_mac_qual == MAC_ANY) { + UPDATE_MATCHES(6); + } else if ((route_def->src_mac_qual != MAC_NOT) && + (memcmp(route_def->src_mac, hdr->src_mac, 6) == 0)) { + UPDATE_MATCHES(8); + } + } + } + + if ((route_def->dst_mac_qual == MAC_NOT) && + (memcmp(route_def->dst_mac, hdr->dst_mac, 6) != 0)) { + if (route_def->src_mac_qual == MAC_ANY) { + UPDATE_MATCHES(5); + } else if ((route_def->src_mac_qual != MAC_NOT) && + (memcmp(route_def->src_mac, hdr->src_mac, 6) == 0)) { + UPDATE_MATCHES(7); + } + } - link_index = g_routes.routes[route_index]->link_idx; - - if ((link_index < 0) || - (link_index > MAX_LINKS) || - (g_links.links[link_index] == NULL)) { - continue; - } + if ((route_def->src_mac_qual == MAC_NOT) && + (memcmp(route_def->src_mac, hdr->src_mac, 6) != 0)) { + if (route_def->dst_mac_qual == MAC_ANY) { + UPDATE_MATCHES(5); + } else if ((route_def->dst_mac_qual != MAC_NOT) && + (memcmp(route_def->dst_mac, hdr->dst_mac, 6) == 0)) { + UPDATE_MATCHES(7); + } + } - link = g_links.links[link_index]; - pkt_len = pkt->size; - if (g_routes.routes[route_index]->link_type == LINK_EDGE) { - - //apply the header in the beginning of the packet to be sent - if (link->dst_link->pro_type == UDP_TYPE) { - struct udp_link_header *hdr = &(link->dst_link->vnet_header); - struct ip_header *ip = &hdr->ip_hdr; - struct udp_header *udp = &hdr->udp_hdr; - udp->len = pkt_len + sizeof(struct udp_header); - ip->total_len = pkt_len + sizeof(struct udp_header) + sizeof(struct ip_header); - ip->cksum = ip_xsum(ip, sizeof(struct ip_header)); - - int hdr_size = sizeof(struct udp_link_header); - memcpy(&pkt->ext_hdr, hdr, hdr_size); - - pkt_len += hdr_size; - if ((link->dst_link->input((uchar_t *)&pkt->ext_hdr, pkt_len, link->dst_link->private_data)) != pkt_len) { - PrintDebug("VNET: Packet not sent properly\n"); - return -1; - } - }else { - PrintDebug("VNET: Link protocol type not support\n"); - return -1; - } - } else if (g_routes.routes[route_index]->link_type == LINK_INTERFACE) { - if ((link->dst_dev->input(pkt->data, pkt_len, link->dst_dev->private_data)) != pkt_len) { - PrintDebug("VNET: Packet not sent properly\n"); - return -1; - } - } else { - PrintDebug("Vnet: Wrong Edge type\n"); - return -1; - } + // Default route + if ( (memcmp(route_def->src_mac, hdr->src_mac, 6) == 0) && + (route_def->dst_mac_qual == MAC_NONE)) { + UPDATE_MATCHES(4); + } } - - return 0; -} -static int send_ethernet_pkt(uchar_t *data, int len) { - struct ethernet_pkt *pkt; + PrintDebug("Vnet: match_route: Matches=%d\n", num_matches); - pkt = (struct ethernet_pkt *)V3_Malloc(sizeof(struct ethernet_pkt)); - memset(pkt, 0, sizeof(struct ethernet_pkt)); - - if(pkt == NULL){ - PrintError("VNET: Memory allocate fails\n"); - return -1; + if (num_matches == 0) { + return NULL; } - - ethernet_packet_init(pkt, data, len); //====here we copy sending data once - - PrintDebug("VNET: vm_send_pkt: transmitting packet: (size:%d)\n", (int)pkt->size); - print_packet((char *)data, len); - - v3_enqueue(g_inpkt_q, (addr_t)pkt); - return 0; -} + matches = (struct route_list *)V3_Malloc(sizeof(struct route_list) + + (sizeof(struct vnet_route_info *) * num_matches)); -//send raw ethernet packet -int v3_vnet_send_rawpkt(uchar_t * buf, int len, void *private_data) { - PrintDebug("VNET: In V3_Send_pkt: pkt length %d\n", len); - - return send_ethernet_pkt(buf, len); -} + matches->num_routes = num_matches; -//sending the packet from Dom0, should remove the link header -int v3_vnet_send_udppkt(uchar_t * buf, int len, void *private_data) { - PrintDebug("VNET: In V3_Send_pkt: pkt length %d\n", len); + { + int i = 0; + list_for_each_entry(route, &match_list, match_node) { + matches->routes[i++] = route; + } + } - uint_t hdr_len = sizeof(struct udp_link_header); - - return send_ethernet_pkt((uchar_t *)(buf+hdr_len), len - hdr_len); + return matches; } -static int search_device(char * device_name) { - int i; +static int send_to_bridge(struct v3_vnet_pkt * pkt){ + struct vnet_brg_dev *bridge = vnet_state.bridge; - for (i = 0; i < MAX_LINKS; i++) { - if ((g_links.links[i] != NULL) && (g_links.links[i]->type == LINK_INTERFACE)) { - if (strcmp(device_name, g_links.links[i]->dst_dev->name) == 0) { - return i; - } - } + if (bridge == NULL) { + PrintError("VNET: No bridge to sent data to links\n"); + return -1; } - return -1; + return bridge->brg_ops.input(bridge->vm, pkt, bridge->private_data); } -int vnet_register_device(struct vm_device * vdev, - char * dev_name, - uchar_t mac[6], - int (*netif_input)(uchar_t * pkt, uint_t size, void * private_data), - void * data) { - struct vnet_if_device * if_dev; - int idx = search_device(dev_name); +/* 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 (idx != -1) { - PrintDebug("VNET: register device: Already has device with the name %s\n", dev_name); - return -1; - } - - if_dev = (struct vnet_if_device *)(sizeof(struct vnet_if_device)); - - if (if_dev == NULL) { - PrintError("VNET: Malloc fails\n"); + if(!dev) return -1; - } - - strcpy(if_dev->name, dev_name); - strncpy(if_dev->mac_addr, mac, 6); - if_dev->dev = vdev; - if_dev->input = netif_input; - if_dev->private_data = data; - struct link_entry * link = (struct link_entry *)(sizeof(struct link_entry)); + if(!dev->rx_disabled) + return 0; - link->type = LINK_INTERFACE; - link->dst_dev = if_dev; + flags = v3_lock_irqsave(vnet_state.lock); + dev->rx_disabled = 0; + v3_unlock_irqrestore(vnet_state.lock, flags); - idx = __add_link_entry(link); + /* 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); + } - PrintDebug("VNET: Add device %s to link table, idx %d", dev_name, idx); - - return idx; + return 0; } -#if 0 -static int vnet_unregister_device(char * dev_name) { - int idx; +/* 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; - idx = search_device(dev_name); - - if (idx == -1) { - PrintDebug("VNET: No device with name %s found\n", dev_name); - return -1; - } - - struct vnet_if_device * device = (struct vnet_if_device *)__delete_link_entry(idx); - if (device == NULL) { - PrintError("VNET: Device %s not in the link table %d, something may be wrong in link table\n", dev_name, idx); + if(!dev) return -1; - } - V3_Free(device); + flags = v3_lock_irqsave(vnet_state.lock); + dev->rx_disabled = 1; + v3_unlock_irqrestore(vnet_state.lock, flags); - return idx; + + /* 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 + { + struct eth_hdr * hdr = (struct eth_hdr *)(pkt->header); + char dest_str[100]; + char src_str[100]; + + 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 -int v3_vnet_pkt_process() { - struct ethernet_pkt * pkt; + flags = v3_lock_irqsave(vnet_state.lock); - PrintDebug("VNET: In vnet_check\n"); + look_into_cache(pkt, &matched_routes); - while ((pkt = (struct ethernet_pkt *)v3_dequeue(g_inpkt_q)) != NULL) { - PrintDebug("VNET: In vnet_check: pt length %d, pt type %d\n", (int)pkt->size, (int)pkt->type); - v3_hexdump(pkt->data, pkt->size, NULL, 0); + if (matched_routes == NULL) { + PrintError("Vnet: send pkt Looking into routing table\n"); - if (handle_one_pkt(pkt)) { - PrintDebug("VNET: vnet_check: handle one packet!\n"); + matched_routes = match_route(pkt); + + if (matched_routes) { + add_route_to_cache(pkt, matched_routes); } else { - PrintError("VNET: vnet_check: fail to forward one packet, discard it!\n"); + PrintDebug("Could not find route for packet... discards packet\n"); + v3_unlock_irqrestore(vnet_state.lock, flags); + return 0; /* do we return -1 here?*/ } + } + + v3_unlock_irqrestore(vnet_state.lock, flags); + + 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]; - V3_Free(pkt); // be careful here + 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 { + PrintError("VNET: Wrong Edge type\n"); + } + + PrintDebug("VNET: Forward one packet according to Route %d\n", i); } return 0; } +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; -static void init_empty_link_table() { - int i; + new_dev = (struct vnet_dev *)V3_Malloc(sizeof(struct vnet_dev)); - for (i = 0; i < MAX_LINKS; i++) { - g_links.links[i] = NULL; + if (new_dev == NULL) { + PrintError("VNET: Malloc fails\n"); + return -1; } + + memcpy(new_dev->mac_addr, mac, 6); + 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; - g_links.size = 0; -} + flags = v3_lock_irqsave(vnet_state.lock); -static void init_empty_route_table() { - int i; + if (!find_dev_by_mac(mac)) { + list_add(&(new_dev->node), &(vnet_state.devs)); + new_dev->dev_id = ++vnet_state.num_devs; + } - for (i = 0; i < MAX_ROUTES; i++) { - g_routes.routes[i] = NULL; + v3_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("Device Alrady exists\n"); + return -1; } - g_links.size = 0; -} + PrintDebug("Vnet: Add Device: dev_id %d\n", new_dev->dev_id); -static void init_tables() { - init_empty_link_table(); - init_empty_route_table(); - init_route_cache(); + return new_dev->dev_id; } -static void init_pkt_queue() { - PrintDebug("VNET Init package receiving queue\n"); - g_inpkt_q = v3_create_queue(); - v3_init_queue(g_inpkt_q); -} +/* 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; -static void free_link_mem(struct link_entry *link){ - V3_Free(link->dst_dev); - V3_Free(link); + 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; + } } -// TODO: -static int addto_routing_link_tables(struct routing_entry *route_tab, - uint16_t num_routes, - struct link_entry *link_tab, - uint16_t num_links){ - struct routing_entry *route, *new_route; - struct link_entry *link, *new_link; - int new_idx; - int i; - int link_idxs[MAX_LINKS]; +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); - //add all of the links first, record their new indexs - for (i = 0; i < num_links; i++) { - link_idxs[i] = -1; - link = &link_tab[i]; - new_link = (struct link_entry *)V3_Malloc(sizeof(struct link_entry)); + if (vnet_state.bridge == NULL) { + bridge_free = 1; + vnet_state.bridge = (void *)1; + } - if (new_link == NULL){ - PrintError("VNET: Memory allocate error\n"); - return -1; - } + v3_unlock_irqrestore(vnet_state.lock, flags); + + if (bridge_free == 0) { + PrintError("Bridge already set\n"); + return -1; + } + + tmp_bridge = (struct vnet_brg_dev *)V3_Malloc(sizeof(struct vnet_brg_dev)); - new_link->type = link->type; + 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; - //TODO: how to set the input parameters here - if (link->type == LINK_EDGE){ - struct vnet_if_device *ifdev = (struct vnet_if_device *)V3_Malloc(sizeof(struct vnet_if_device)); + /* 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); - if (ifdev == NULL){ - PrintError("VNET: Memory allocate fails\n"); - return -1; - } - - memcpy(ifdev->name, link->dst_dev->name, DEVICE_NAME_LEN); + return 0; +} - // TODO: - //ifdev->mac_addr - //ifdev->input - //ifdev->private_data - new_link->dst_dev = ifdev; - }else if (link->type == LINK_INTERFACE){ - struct vnet_if_link *iflink = (struct vnet_if_link *)V3_Malloc(sizeof(struct vnet_if_link)); +#if 0 +int v3_vnet_disable_bridge() { + unsigned long flags; + + flags = v3_lock_irqsave(vnet_state.lock); - if (iflink == NULL){ - PrintError("VNET: Memory allocate fails\n"); - return -1; - } - iflink->pro_type = link->dst_link->pro_type; - iflink->dest_ip = link->dst_link->dest_ip; - iflink->dest_port = link->dst_link->dest_port; - memcpy(&iflink->vnet_header, &link->dst_link->vnet_header, sizeof(struct udp_link_header)); - - // TODO: - //iflink->input = - //iflink->private_data = - - new_link->dst_link = iflink; - }else{ - PrintDebug("VNET: invalid link type\n"); - V3_Free(new_link); - continue; - } - - new_idx = __add_link_entry(new_link); - if (new_idx < 0) { - PrintError("VNET: Adding link fails\n"); - free_link_mem(new_link); - continue; - } - link_idxs[i] = new_idx; + if (vnet_state.bridge != NULL) { + vnet_state.bridge->disabled = 1; } - //add all of routes, replace with new link indexs - for (i = 0; i < num_routes; i++) { - route = &route_tab[i]; - if (route->link_idx < 0 || route->link_idx >= num_links || - ((route->src_link_idx != -1) && - (route->src_link_idx < 0 || route->src_link_idx >= num_links))){ - PrintError("VNET: There is error in the intial tables data from guest\n"); - continue; - } + v3_unlock_irqrestore(vnet_state.lock, flags); - new_route = (struct routing_entry *)V3_Malloc(sizeof(struct routing_entry)); + return 0; +} - if (new_route == NULL){ - PrintError("VNET: Memory allocate fails\n"); - return -1; - } - memcpy(new_route, route, sizeof(struct routing_entry)); - - new_route->link_idx = link_idxs[new_route->link_idx]; - - if (route->src_link_idx != -1) - new_route->src_link_idx = link_idxs[new_route->src_link_idx]; - if((__add_route_entry(new_route)) == -1){ - PrintDebug("VNET: Adding route fails"); - V3_Free(new_route); - } - new_route = NULL; +int v3_vnet_enable_bridge() { + unsigned long flags; + + flags = v3_lock_irqsave(vnet_state.lock); + + if (vnet_state.bridge != NULL) { + vnet_state.bridge->disabled = 0; } + v3_unlock_irqrestore(vnet_state.lock, flags); return 0; } +#endif -struct table_init_info { - addr_t routing_table_start; - uint16_t routing_table_size; - addr_t link_table_start; - uint16_t link_table_size; -}; - -//add the guest specified routes and links to the tables -static int handle_init_tables_hcall(struct guest_info * info, uint_t hcall_id, void * priv_data) { - addr_t guest_addr = (addr_t)info->vm_regs.rcx; - addr_t info_addr, route_addr, link_addr; - struct table_init_info *init_info; - struct link_entry *link_array; - struct routing_entry *route_array; +int v3_init_vnet() { + memset(&vnet_state, 0, sizeof(vnet_state)); + + INIT_LIST_HEAD(&(vnet_state.routes)); + INIT_LIST_HEAD(&(vnet_state.devs)); - if (guest_va_to_host_va(info, guest_addr, &info_addr) == -1) { - PrintError("VNET: Could not translate guest address\n"); - return -1; - } + vnet_state.num_devs = 0; + vnet_state.num_routes = 0; - init_info = (struct table_init_info *)info_addr; + PrintDebug("VNET: Links and Routes tables initiated\n"); - if (guest_va_to_host_va(info, init_info->routing_table_start, &route_addr) == -1) { - PrintError("VNET: Could not translate guest address\n"); - return -1; + if (v3_lock_init(&(vnet_state.lock)) == -1){ + PrintError("VNET: Failure to init lock for routes table\n"); } - route_array = (struct routing_entry *)route_addr; + PrintDebug("VNET: Locks initiated\n"); - if (guest_va_to_host_va(info, init_info->link_table_start, &link_addr) == -1) { - PrintError("VNET: Could not translate guest address\n"); - return -1; - } - link_array = (struct link_entry *)link_addr; + vnet_state.route_cache = v3_create_htable(0, &hash_fn, &hash_eq); - addto_routing_link_tables(route_array, init_info->routing_table_size, link_array, init_info->link_table_size); - - return 0; -} + if (vnet_state.route_cache == NULL) { + PrintError("Vnet: Route Cache Init Fails\n"); + return -1; + } + vnet_state.sidecores = 0; + vnet_state.cores_map = 0; -void v3_vnet_init(struct guest_info * vm) { - init_tables(); - init_pkt_queue(); - - v3_register_hypercall(vm, VNET_INITAB_HCALL, handle_init_tables_hcall, NULL); + PrintDebug("VNET: initiated\n"); - PrintDebug("VNET Initialized\n"); + return 0; } - -