void system_initial(void)
{
mem_init();
sys_thread_init();
psp_init();
}
void* sr_init_low_level_subystem(int argc, char **argv)
{
/* -- VNS default parameters -- */
char *host = "vrhost";
char *rtable = "rtable";
char *server = "171.67.71.18";
char *cpuhw = CPU_HW_FILENAME;
uint16_t port = 12345;
uint16_t topo = 0;
char *client = 0;
char *logfile = 0;
char *interface = "nf2c0"; /* Default NetFPGA interface for card 0 */
/* -- singleton instance of router, passed to sr_get_global_instance
to become globally accessible -- */
static struct sr_instance* sr = 0;
int c;
if ( sr )
{
fprintf(stderr, "Warning: because of limitations in lwip, ");
fprintf(stderr, " sr supports 1 router instance per process. \n ");
return 0;
}
sr = (struct sr_instance*) malloc(sizeof(struct sr_instance));
while ((c = getopt(argc, argv, "hs:v:p:c:t:r:l:i:m:")) != EOF)
{
switch (c)
{
case 'h':
usage(argv[0]);
exit(0);
break;
case 'p':
port = atoi((char *) optarg);
break;
case 't':
topo = atoi((char *) optarg);
break;
case 'v':
host = optarg;
break;
case 'r':
rtable = optarg;
break;
case 'c':
client = optarg;
break;
case 's':
server = optarg;
break;
case 'l':
logfile = optarg;
break;
case 'm':
cpuhw = optarg;
break;
case 'i':
interface = optarg;
if (strncmp(interface, "nf2c", 4) != 0) {
usage(argv[0]);
exit(1);
}
break;
} /* switch */
} /* -- while -- */
/* Set the NetFPGA interface name */
strncpy(sr->interface, interface, 31);
sr->interface[31] = '\0';
#ifdef _CPUMODE_
Debug(" \n ");
Debug(" < -- Starting sr in cpu mode -- >\n");
Debug(" \n ");
#else
Debug(" < -- Starting sr in router mode -- >\n");
Debug(" \n ");
#endif /* _CPUMODE_ */
/* -- required by lwip, must be called from the main thread -- */
sys_thread_init();
/* -- zero out sr instance and set default configurations -- */
sr_init_instance(sr);
#ifdef _CPUMODE_
sr->topo_id = 0;
strncpy(sr->vhost, "cpu", SR_NAMELEN);
strncpy(sr->rtable, rtable, SR_NAMELEN);
if ( sr_cpu_init_hardware(sr, cpuhw) )
{ exit(1); }
sr_integ_hw_setup(sr);
#else
sr->topo_id = topo;
strncpy(sr->vhost, host, SR_NAMELEN);
strncpy(sr->rtable, rtable, SR_NAMELEN);
#endif /* _CPUMODE_ */
if(! client )
{ sr_set_user(sr); }
else
{ strncpy(sr->user, client, SR_NAMELEN); }
if ( gethostname(sr->lhost, SR_NAMELEN) == -1 )
{
perror("gethostname(..)");
return 0;
}
/* -- log all packets sent/received to logfile (if non-null) -- */
sr_vns_init_log(sr, logfile);
sr_lwip_transport_startup();
#ifndef _CPUMODE_
Debug("Client %s connecting to Server %s:%d\n",
sr->user, server, port);
Debug("Requesting topology %d\n", topo);
/* -- connect to VNS and reserve host -- */
if(sr_vns_connect_to_server(sr,port,server) == -1)
{ return 0; }
/* read from server until the hardware is setup */
while (! sr->hw_init )
{
if(sr_vns_read_from_server(sr) == -1 )
{
fprintf(stderr, "Error: could not get hardware information ");
fprintf(stderr, "from the server");
sr_destroy_instance(sr);
return 0;
}
}
#endif
/* -- start low-level network thread, dissown sr -- */
sys_thread_new(sr_low_level_network_subsystem, (void*)sr /* dissown */);
return sr->interface_subsystem;
}/* -- main -- */