/*
* Initialize all I/O devices. Starting closest to nodes, probe and
* initialize outward.
*/
void
init_all_devices(void)
{
/* Governor on init threads..bump up when safe
* (beware many devfs races)
*/
cnodeid_t cnodeid, active;
active = 0;
for (cnodeid = 0; cnodeid < numnodes; cnodeid++) {
DBG("init_all_devices: Calling io_init_node() for cnode %d\n", cnodeid);
io_init_node(cnodeid);
DBG("init_all_devices: Done io_init_node() for cnode %d\n", cnodeid);
}
for (cnodeid = 0; cnodeid < numnodes; cnodeid++)
/*
* Update information generated by IO init.
*/
update_node_information(cnodeid);
#if HWG_PRINT
hwgraph_print();
#endif
}
/*
* Initialize all I/O devices. Starting closest to nodes, probe and
* initialize outward.
*/
void
init_all_devices(void)
{
/* Governor on init threads..bump up when safe
* (beware many devfs races)
*/
#ifdef LATER
int io_init_node_threads = 2;
#endif
cnodeid_t cnodeid, active;
#ifdef LINUX_KERNEL_THREADS
sema_init(&io_init_sema, 0);
#endif
active = 0;
for (cnodeid = 0; cnodeid < numnodes; cnodeid++) {
#ifdef LINUX_KERNEL_THREADS
char thread_name[16];
extern int io_init_pri;
/*
* Spawn a service thread for each node to initialize all
* I/O on that node. Each thread attempts to bind itself
* to the node whose I/O it's initializing.
*/
sprintf(thread_name, "IO_init[%d]", cnodeid);
(void)sthread_create(thread_name, 0, IOINIT_STKSZ, 0,
io_init_pri, KT_PS, (st_func_t *)io_init_node,
(void *)(long)cnodeid, 0, 0, 0);
#else
DBG("init_all_devices: Calling io_init_node() for cnode %d\n", cnodeid);
io_init_node(cnodeid);
DBG("init_all_devices: Done io_init_node() for cnode %d\n", cnodeid);
#endif /* LINUX_KERNEL_THREADS */
#ifdef LINUX_KERNEL_THREADS
/* Limit how many nodes go at once, to not overload hwgraph */
/* TBD: Should timeout */
DBG("started thread for cnode %d\n", cnodeid);
active++;
if (io_init_node_threads &&
active >= io_init_node_threads) {
down(&io_init_sema);
active--;
}
#endif /* LINUX_KERNEL_THREADS */
}
#ifdef LINUX_KERNEL_THREADS
/* Wait until all IO_init threads are done */
while (active > 0) {
#ifdef AA_DEBUG
DBG("waiting, %d still active\n", active);
#endif
down(&io_init_sema);
active--;
}
#endif /* LINUX_KERNEL_THREADS */
for (cnodeid = 0; cnodeid < numnodes; cnodeid++)
/*
* Update information generated by IO init.
*/
update_node_information(cnodeid);
baseio_ctlr_num_set();
/* Setup the system critical graph (which is a subgraph of the
* main hwgraph). This information is useful during io error
* handling.
*/
sys_critical_graph_init();
#if HWG_PRINT
hwgraph_print();
#endif
}
