コード例 #1
0
/*
 * 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

}
コード例 #2
0
/*
 * Initialize all I/O devices.  Starting closest to nodes, probe and
 * initialize outward.
 */
void
init_all_devices(void)
{
	cnodeid_t cnodeid, active;

	active = 0;
	for (cnodeid = 0; cnodeid < numionodes; 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);
	}
}
コード例 #3
0
ファイル: ml_iograph.c プロジェクト: ya-mouse/cnu-680pro
/*
 * 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

}