klgraph.c

linux-2.4.29操作系统的源码

	klhub_t *hub;
	vertex_hdl_t node_vertex = NULL;
	char path_buffer[100];
	int rv;
	char *s;
	int board_disabled = 0;
	klcpu_t *cpu;

	nasid = COMPACT_TO_NASID_NODEID(cnode);
	brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_SNIA);
	ASSERT(brd);

	do {
		vertex_hdl_t cpu_dir;

		/* Generate a hardware graph path for this board. */
		board_to_path(brd, path_buffer);
		rv = hwgraph_path_add(hwgraph_root, path_buffer, &node_vertex);
		if (rv != GRAPH_SUCCESS)
			panic("Node vertex creation failed.  Path == %s", path_buffer);

		HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, node_vertex, NULL, "Created path for SHUB node.\n"));
		hub = (klhub_t *)find_first_component(brd, KLSTRUCT_HUB);
		ASSERT(hub);
		if(hub->hub_info.flags & KLINFO_ENABLE)
			board_disabled = 0;
		else
			board_disabled = 1;
		
		if(!board_disabled) {
			mark_nodevertex_as_node(node_vertex,
					    cnode + board_disabled * numnodes);

			s = dev_to_name(node_vertex, path_buffer, sizeof(path_buffer));
			NODEPDA(cnode)->hwg_node_name =
						kmalloc(strlen(s) + 1,
						GFP_KERNEL);
			ASSERT_ALWAYS(NODEPDA(cnode)->hwg_node_name != NULL);
			strcpy(NODEPDA(cnode)->hwg_node_name, s);

			hubinfo_set(node_vertex, NODEPDA(cnode)->pdinfo);

			/* Set up node board's slot */
			NODEPDA(cnode)->slotdesc = brd->brd_slot;

			/* Set up the module we're in */
			NODEPDA(cnode)->geoid = brd->brd_geoid;
			NODEPDA(cnode)->module = module_lookup(geo_module(brd->brd_geoid));
		}

		/* Get the first CPU structure */
		cpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU);

		/*
		* If there's at least 1 CPU, add a "cpu" directory to represent
		* the collection of all CPUs attached to this node.
		*/
		if (cpu) {
			graph_error_t rv;

			rv = hwgraph_path_add(node_vertex, EDGE_LBL_CPU, &cpu_dir);
			if (rv != GRAPH_SUCCESS)
				panic("klhwg_add_node: Cannot create CPU directory\n");
			HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, cpu_dir, NULL, "Created cpu directiry on SHUB node.\n"));

		}

		/* Add each CPU */
		while (cpu) {
			cpuid_t cpu_id;
			cpu_id = nasid_slice_to_cpuid(nasid,cpu->cpu_info.physid);
			if (cpu_online(cpu_id))
				klhwg_add_cpu(node_vertex, cnode, cpu);
			else
				klhwg_add_disabled_cpu(node_vertex, cnode, cpu, brd->brd_slot);

			cpu = (klcpu_t *)
				find_component(brd, (klinfo_t *)cpu, KLSTRUCT_CPU);
		} /* while */

		if(!board_disabled)
			klhwg_add_hub(node_vertex, hub, cnode);
		
		brd = KLCF_NEXT(brd);
		if (brd)
			brd = find_lboard(brd, KLTYPE_SNIA);
		else
			break;
	} while(brd);
}


/* ARGSUSED */
void
klhwg_add_all_routers(vertex_hdl_t hwgraph_root)
{
	nasid_t nasid;
	cnodeid_t cnode;
	lboard_t *brd;
	vertex_hdl_t node_vertex;
	char path_buffer[100];
	int rv;

	for (cnode = 0; cnode < numnodes; cnode++) {
		nasid = COMPACT_TO_NASID_NODEID(cnode);
		brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid),
				KLTYPE_ROUTER);
		if (!brd)
			/* No routers stored in this node's memory */
			continue;

		do {
			ASSERT(brd);

			/* Don't add duplicate boards. */
			if (brd->brd_flags & DUPLICATE_BOARD)
				continue;

			/* Generate a hardware graph path for this board. */
			board_to_path(brd, path_buffer);

			/* Add the router */
			rv = hwgraph_path_add(hwgraph_root, path_buffer, &node_vertex);
			if (rv != GRAPH_SUCCESS)
				panic("Router vertex creation "
						  "failed.  Path == %s",
					path_buffer);

			HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, node_vertex, NULL, "Created router path.\n"));

		/* Find the rest of the routers stored on this node. */
		} while ( (brd = find_lboard_class(KLCF_NEXT(brd),
			 KLTYPE_ROUTER)) );
	}

}

/* ARGSUSED */
void
klhwg_connect_one_router(vertex_hdl_t hwgraph_root, lboard_t *brd,
			 cnodeid_t cnode, nasid_t nasid)
{
	klrou_t *router;
	char path_buffer[50];
	char dest_path[50];
	vertex_hdl_t router_hndl;
	vertex_hdl_t dest_hndl;
	int rc;
	int port;
	lboard_t *dest_brd;

	/* Don't add duplicate boards. */
	if (brd->brd_flags & DUPLICATE_BOARD) {
		return;
	}

	/* Generate a hardware graph path for this board. */
	board_to_path(brd, path_buffer);

	rc = hwgraph_traverse(hwgraph_root, path_buffer, &router_hndl);

	if (rc != GRAPH_SUCCESS && is_specified(arg_maxnodes))
			return;

	if (rc != GRAPH_SUCCESS)
		printk(KERN_WARNING  "Can't find router: %s", path_buffer);

	/* We don't know what to do with multiple router components */
	if (brd->brd_numcompts != 1) {
		panic("klhwg_connect_one_router: %d cmpts on router\n",
			brd->brd_numcompts);
		return;
	}


	/* Convert component 0 to klrou_t ptr */
	router = (klrou_t *)NODE_OFFSET_TO_K0(NASID_GET(brd),
					      brd->brd_compts[0]);

	for (port = 1; port <= MAX_ROUTER_PORTS; port++) {
		/* See if the port's active */
		if (router->rou_port[port].port_nasid == INVALID_NASID) {
			GRPRINTF(("klhwg_connect_one_router: port %d inactive.\n",
				 port));
			continue;
		}
		if (is_specified(arg_maxnodes) && NASID_TO_COMPACT_NODEID(router->rou_port[port].port_nasid) 
		    == INVALID_CNODEID) {
			continue;
		}

		dest_brd = (lboard_t *)NODE_OFFSET_TO_K0(
				router->rou_port[port].port_nasid,
				router->rou_port[port].port_offset);

		/* Generate a hardware graph path for this board. */
		board_to_path(dest_brd, dest_path);

		rc = hwgraph_traverse(hwgraph_root, dest_path, &dest_hndl);

		if (rc != GRAPH_SUCCESS) {
			if (is_specified(arg_maxnodes) && KL_CONFIG_DUPLICATE_BOARD(dest_brd))
				continue;
			panic("Can't find router: %s", dest_path);
		}

		sprintf(dest_path, "%d", port);

		rc = hwgraph_edge_add(router_hndl, dest_hndl, dest_path);
		if (rc == GRAPH_DUP) {
			GRPRINTF(("Skipping port %d. nasid %d %s/%s\n",
				  port, router->rou_port[port].port_nasid,
				  path_buffer, dest_path));
			continue;
		}

		if (rc != GRAPH_SUCCESS && !is_specified(arg_maxnodes))
			panic("Can't create edge: %s/%s to vertex 0x%p error 0x%x\n",
				path_buffer, dest_path, (void *)dest_hndl, rc);

		HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, router_hndl, dest_hndl, "Created edge %s from vhdl1 to vhdl2.\n", dest_path));
		
	}
}


void
klhwg_connect_routers(vertex_hdl_t hwgraph_root)
{
	nasid_t nasid;
	cnodeid_t cnode;
	lboard_t *brd;

	for (cnode = 0; cnode < numnodes; cnode++) {
		nasid = COMPACT_TO_NASID_NODEID(cnode);

		GRPRINTF(("klhwg_connect_routers: Connecting routers on cnode %d\n",
			cnode));

		brd = find_lboard_class((lboard_t *)KL_CONFIG_INFO(nasid),
				KLTYPE_ROUTER);

		if (!brd)
			continue;

		do {

			nasid = COMPACT_TO_NASID_NODEID(cnode);

			klhwg_connect_one_router(hwgraph_root, brd,
						 cnode, nasid);

		/* Find the rest of the routers stored on this node. */
		} while ( (brd = find_lboard_class(KLCF_NEXT(brd), KLTYPE_ROUTER)) );
	}
}



void
klhwg_connect_hubs(vertex_hdl_t hwgraph_root)
{
	nasid_t nasid;
	cnodeid_t cnode;
	lboard_t *brd;
	klhub_t *hub;
	lboard_t *dest_brd;
	vertex_hdl_t hub_hndl;
	vertex_hdl_t dest_hndl;
	char path_buffer[50];
	char dest_path[50];
	graph_error_t rc;
	int port;

	for (cnode = 0; cnode < numionodes; cnode++) {
		nasid = COMPACT_TO_NASID_NODEID(cnode);

		if (!(nasid & 1)) {
			brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_SNIA);
			ASSERT(brd);
		} else {
			brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_TIO);
			ASSERT(brd);
		}

		hub = (klhub_t *)find_first_component(brd, KLSTRUCT_HUB);
		ASSERT(hub);

		for (port = 1; port <= MAX_NI_PORTS; port++) {
			/* See if the port's active */
			if (hub->hub_port[port].port_nasid == INVALID_NASID) {
				GRPRINTF(("klhwg_connect_hubs: port inactive.\n"));
				continue;
			}

			if (is_specified(arg_maxnodes) && NASID_TO_COMPACT_NODEID(hub->hub_port[port].port_nasid) == INVALID_CNODEID)
				continue;

			/* Generate a hardware graph path for this board. */
			board_to_path(brd, path_buffer);
			rc = hwgraph_traverse(hwgraph_root, path_buffer, &hub_hndl);
			if (rc != GRAPH_SUCCESS)
				printk(KERN_WARNING  "Can't find hub: %s", path_buffer);

			dest_brd = (lboard_t *)NODE_OFFSET_TO_K0(
					hub->hub_port[port].port_nasid,
					hub->hub_port[port].port_offset);

			/* Generate a hardware graph path for this board. */
			board_to_path(dest_brd, dest_path);

			rc = hwgraph_traverse(hwgraph_root, dest_path, &dest_hndl);

			if (rc != GRAPH_SUCCESS) {
				if (is_specified(arg_maxnodes) && KL_CONFIG_DUPLICATE_BOARD(dest_brd))
					continue;
				panic("Can't find board: %s", dest_path);
			} else {
				char buf[1024];
		

				GRPRINTF(("klhwg_connect_hubs: Link from %s to %s.\n",
			  	path_buffer, dest_path));

				rc = hwgraph_path_add(hub_hndl, EDGE_LBL_INTERCONNECT, &hub_hndl);

				HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, hub_hndl, NULL, "Created link path.\n"));

				sprintf(buf,"%s/%s",path_buffer,EDGE_LBL_INTERCONNECT);
				rc = hwgraph_traverse(hwgraph_root, buf, &hub_hndl);
				sprintf(buf,"%d",port);
				rc = hwgraph_edge_add(hub_hndl, dest_hndl, buf);

				HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, hub_hndl, dest_hndl, "Created edge %s from vhdl1 to vhdl2.\n", buf));

				if (rc != GRAPH_SUCCESS)
					panic("Can't create edge: %s/%s to vertex 0x%p, error 0x%x\n",
					path_buffer, dest_path, (void *)dest_hndl, rc);

			}
		}
	}
}

/* Store the pci/vme disabled board information as extended administrative
 * hints which can later be used by the drivers using the device/driver
 * admin interface. 
 */
void
klhwg_device_disable_hints_add(void)
{
	cnodeid_t	cnode; 		/* node we are looking at */
	nasid_t		nasid;		/* nasid of the node */
	lboard_t	*board;		/* board we are looking at */
	int		comp_index;	/* component index */
	klinfo_t	*component;	/* component in the board we are
					 * looking at 
					 */
	char		device_name[MAXDEVNAME];
	
	for(cnode = 0; cnode < numnodes; cnode++) {
		nasid = COMPACT_TO_NASID_NODEID(cnode);
		board = (lboard_t *)KL_CONFIG_INFO(nasid);
		/* Check out all the board info stored  on a node */
		while(board) {
			/* No need to look at duplicate boards or non-io 
			 * boards
			 */
			if (KL_CONFIG_DUPLICATE_BOARD(board) ||
			    KLCLASS(board->brd_type) != KLCLASS_IO) {
				board = KLCF_NEXT(board);
				continue;
			}
			/* Check out all the components of a board */
			for (comp_index = 0; 
			     comp_index < KLCF_NUM_COMPS(board);
			     comp_index++) {
				component = KLCF_COMP(board,comp_index);
				/* If the component is enabled move on to
				 * the next component
				 */
				if (KLCONFIG_INFO_ENABLED(component))
					continue;
				/* NOTE : Since the prom only supports
				 * the disabling of pci devices the following
				 * piece of code makes sense. 
				 * Make sure that this assumption is valid
				 */
				/* This component is disabled. Store this
				 * hint in the extended device admin table
				 */
				/* Get the canonical name of the pci device */
				device_component_canonical_name_get(board,
							    component,
							    device_name);
#ifdef DEBUG
				printf("%s DISABLED\n",device_name);
#endif				
			}
			/* go to the next board info stored on this 
			 * node 
			 */
			board = KLCF_NEXT(board);
		}
	}
}

void
klhwg_add_all_modules(vertex_hdl_t hwgraph_root)
{
	cmoduleid_t	cm;
	char		name[128];
	vertex_hdl_t	vhdl;
	vertex_hdl_t  module_vhdl;
	int		rc;
	char		buffer[16];

	/* Add devices under each module */

	for (cm = 0; cm < nummodules; cm++) {
		/* Use module as module vertex fastinfo */

		memset(buffer, 0, 16);
		format_module_id(buffer, modules[cm]->id, MODULE_FORMAT_BRIEF);
		sprintf(name, EDGE_LBL_MODULE "/%s", buffer);

		rc = hwgraph_path_add(hwgraph_root, name, &module_vhdl);
		ASSERT(rc == GRAPH_SUCCESS);
		rc = rc; /* Shut the compiler up */
		HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, module_vhdl, NULL, "Created module path.\n"));

		hwgraph_fastinfo_set(module_vhdl, (arbitrary_info_t) modules[cm]);

		/* Add system controller */
		sprintf(name,
			EDGE_LBL_MODULE "/%s/" EDGE_LBL_L1,
			buffer);

		rc = hwgraph_path_add(hwgraph_root, name, &vhdl);
		ASSERT_ALWAYS(rc == GRAPH_SUCCESS);
		rc = rc; /* Shut the compiler up */
		HWGRAPH_DEBUG((__FILE__, __FUNCTION__, __LINE__, vhdl, NULL, "Created L1 path.\n"));

		hwgraph_info_add_LBL(vhdl,
				     INFO_LBL_ELSC,
				     (arbitrary_info_t) (int64_t) 1);

	}
}

void
klhwg_add_all_nodes(vertex_hdl_t hwgraph_root)
{
	cnodeid_t	cnode;

	for (cnode = 0; cnode < numnodes; cnode++) {
		klhwg_add_node(hwgraph_root, cnode);
	}

	for (cnode = numnodes; cnode < numionodes; cnode++) {
		klhwg_add_tionode(hwgraph_root, cnode);
	}

	for (cnode = 0; cnode < numnodes; cnode++) {
		klhwg_add_xbow(cnode, cnodeid_to_nasid(cnode));
	}

	for (cnode = numnodes; cnode < numionodes; cnode++) {
		klhwg_add_coretalk(cnode, cnodeid_to_nasid(cnode));
	}

	/*
	 * As for router hardware inventory information, we set this
	 * up in router.c. 
	 */
	
	klhwg_add_all_routers(hwgraph_root);
	klhwg_connect_routers(hwgraph_root);
	klhwg_connect_hubs(hwgraph_root);

	/* Go through the entire system's klconfig
	 * to figure out which pci components have been disabled
	 */
	klhwg_device_disable_hints_add();

}