/* Add a NetIO descriptor to a virtual ethernet switch */
int ethsw_add_netio(ethsw_table_t *t,char *nio_name)
{
netio_desc_t *nio;
int i;
ETHSW_LOCK(t);
/* Try to find a free slot in the NIO array */
for(i=0;i<ETHSW_MAX_NIO;i++)
if (t->nio[i] == NULL)
break;
/* No free slot found ... */
if (i == ETHSW_MAX_NIO)
goto error;
/* Acquire the NIO descriptor and increment its reference count */
if (!(nio = netio_acquire(nio_name)))
goto error;
/* By default, the port is an access port in VLAN 1 */
set_access_port(nio,1);
t->nio[i] = nio;
netio_rxl_add(nio,(netio_rx_handler_t)ethsw_recv_pkt,t,NULL);
ETHSW_UNLOCK(t);
return(0);
error:
ETHSW_UNLOCK(t);
return(-1);
}
/* Configure an ATM bridge */
int atm_bridge_configure(atm_bridge_t *t,char *eth_nio,
char *atm_nio,u_int vpi,u_int vci)
{
netio_desc_t *e_nio,*a_nio;
ATM_BRIDGE_LOCK(t);
if (t->eth_nio || t->atm_nio)
goto error;
e_nio = netio_acquire(eth_nio);
a_nio = netio_acquire(atm_nio);
if (!e_nio || !a_nio)
goto error;
t->eth_nio = e_nio;
t->atm_nio = a_nio;
t->vpi = vpi;
t->vci = vci;
/* Add ATM RX listener */
if (netio_rxl_add(t->atm_nio,(netio_rx_handler_t)atm_bridge_recv_cell,
t,NULL) == -1)
goto error;
/* Add Ethernet RX listener */
if (netio_rxl_add(t->eth_nio,(netio_rx_handler_t)atm_bridge_recv_pkt,
t,NULL) == -1)
goto error;
ATM_BRIDGE_UNLOCK(t);
return(0);
error:
ATM_BRIDGE_UNLOCK(t);
return(-1);
}
/* Add a network IO binding */
int vm_slot_add_nio_binding(vm_instance_t *vm,u_int slot_id,u_int port_id,
char *nio_name)
{
struct cisco_nio_binding *nb;
struct cisco_card *card,*rc;
u_int real_port_id;
netio_desc_t *nio;
if (!(card = vm_slot_get_card_ptr(vm,slot_id)))
return(-1);
/* Get the real card (in case this is a sub-slot) */
real_port_id = vm_slot_translate_port_id(vm,slot_id,port_id,&rc);
if (rc == NULL)
return(-1);
/* check that a NIO is not already bound to this port */
if (cisco_card_find_nio_binding(rc,real_port_id) != NULL) {
vm_error(vm,"a NIO already exists for interface %u/%u.\n",
slot_id,port_id);
return(-1);
}
/* acquire a reference on the NIO object */
if (!(nio = netio_acquire(nio_name))) {
vm_error(vm,"unable to find NIO '%s'.\n",nio_name);
return(-1);
}
/* create a new binding */
if (!(nb = malloc(sizeof(*nb)))) {
vm_error(vm,"unable to create NIO binding for interface %u/%u.\n",
slot_id,port_id);
netio_release(nio_name);
return(-1);
}
memset(nb,0,sizeof(*nb));
nb->nio = nio;
nb->port_id = real_port_id;
nb->orig_port_id = port_id;
nb->next = rc->nio_list;
if (nb->next) nb->next->prev = nb;
rc->nio_list = nb;
return(0);
}
