klconflib.c

嵌入式系统设计与实验教材二源码linux内核移植与编译

/* $Id$
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1992 - 1997, 2000 Silicon Graphics, Inc.
 * Copyright (C) 2000 by Colin Ngam
 */


#include <linux/types.h>
#include <linux/config.h>
#include <linux/ctype.h>
#include <asm/sn/sgi.h>
#include <asm/sn/iograph.h>
#include <asm/sn/invent.h>
#include <asm/sn/hcl.h>
#include <asm/sn/labelcl.h>

#include <asm/sn/agent.h>
#include <asm/sn/klconfig.h>
#include <asm/sn/nodepda.h>
#include <asm/sn/module.h>
#include <asm/sn/router.h>
#include <asm/sn/xtalk/xbow.h>

#define printf printk
int hasmetarouter;

#define LDEBUG 0
#define NIC_UNKNOWN ((nic_t) -1)

#undef DEBUG_KLGRAPH
#ifdef DEBUG_KLGRAPH
#define DBG(x...) printk(x)
#else
#define DBG(x...)
#endif /* DEBUG_KLGRAPH */

static void sort_nic_names(lboard_t *) ;

lboard_t *
find_lboard(lboard_t *start, unsigned char brd_type)
{
	/* Search all boards stored on this node. */
	while (start) {
		if (start->brd_type == brd_type)
			return start;
		start = KLCF_NEXT(start);
	}

	/* Didn't find it. */
	return (lboard_t *)NULL;
}

lboard_t *
find_lboard_class(lboard_t *start, unsigned char brd_type)
{
	/* Search all boards stored on this node. */
	while (start) {
		if (KLCLASS(start->brd_type) == KLCLASS(brd_type))
			return start;
		start = KLCF_NEXT(start);
	}

	/* Didn't find it. */
	return (lboard_t *)NULL;
}

klinfo_t *
find_component(lboard_t *brd, klinfo_t *kli, unsigned char struct_type)
{
	int index, j;

	if (kli == (klinfo_t *)NULL) {
		index = 0;
	} else {
		for (j = 0; j < KLCF_NUM_COMPS(brd); j++) {
			if (kli == KLCF_COMP(brd, j))
				break;
		}
		index = j;
		if (index == KLCF_NUM_COMPS(brd)) {
			DBG("find_component: Bad pointer: 0x%p\n", kli);
			return (klinfo_t *)NULL;
		}
		index++;	/* next component */
	}
	
	for (; index < KLCF_NUM_COMPS(brd); index++) {		
		kli = KLCF_COMP(brd, index);
		DBG("find_component: brd %p kli %p  request type = 0x%x kli type 0x%x\n", brd, kli, kli->struct_type, KLCF_COMP_TYPE(kli));
		if (KLCF_COMP_TYPE(kli) == struct_type)
			return kli;
	}

	/* Didn't find it. */
	return (klinfo_t *)NULL;
}

klinfo_t *
find_first_component(lboard_t *brd, unsigned char struct_type)
{
	return find_component(brd, (klinfo_t *)NULL, struct_type);
}

lboard_t *
find_lboard_modslot(lboard_t *start, moduleid_t mod, slotid_t slot)
{
	/* Search all boards stored on this node. */
	while (start) {
		if (MODULE_MATCH(start->brd_module, mod) &&
		    (start->brd_slot == slot))
			return start;
		start = KLCF_NEXT(start);
	}

	/* Didn't find it. */
	return (lboard_t *)NULL;
}

lboard_t *
find_lboard_module(lboard_t *start, moduleid_t mod)
{
        /* Search all boards stored on this node. */
        while (start) {
                if (MODULE_MATCH(start->brd_module, mod))
                        return start;
                start = KLCF_NEXT(start);
        }

        /* Didn't find it. */
        return (lboard_t *)NULL;
}

lboard_t *
find_lboard_module_class(lboard_t *start, moduleid_t mod,
                                                unsigned char brd_type)
{
	while (start) {

		DBG("find_lboard_module_class: lboard 0x%p, start->brd_module 0x%x, mod 0x%x, start->brd_type 0x%x, brd_type 0x%x\n", start, start->brd_module, mod, start->brd_type, brd_type);

		if (MODULE_MATCH(start->brd_module, mod) &&
			(KLCLASS(start->brd_type) == KLCLASS(brd_type)))
			return start;
		start = KLCF_NEXT(start);
	}

	/* Didn't find it. */
	return (lboard_t *)NULL;
}


/*
 * Convert a NIC name to a name for use in the hardware graph.
 */
void
nic_name_convert(char *old_name, char *new_name)
{
        int i;
        char c;
        char *compare_ptr;

	if ((old_name[0] == '\0') || (old_name[1] == '\0')) {
                strcpy(new_name, EDGE_LBL_XWIDGET);
        } else {
                for (i = 0; i < strlen(old_name); i++) {
                        c = old_name[i];

                        if (isalpha(c))
                                new_name[i] = tolower(c);
                        else if (isdigit(c))
                                new_name[i] = c;
                        else
                                new_name[i] = '_';
                }
                new_name[i] = '\0';
        }

        /* XXX -
         * Since a bunch of boards made it out with weird names like
         * IO6-fibbbed and IO6P2, we need to look for IO6 in a name and
         * replace it with "baseio" to avoid confusion in the field.
	 * We also have to make sure we don't report media_io instead of
	 * baseio.
         */

        /* Skip underscores at the beginning of the name */
        for (compare_ptr = new_name; (*compare_ptr) == '_'; compare_ptr++)
                ;

	/*
	 * Check for some names we need to replace.  Early boards
	 * had junk following the name so check only the first
	 * characters.
	 */
        if (!strncmp(new_name, "io6", 3) || 
            !strncmp(new_name, "mio", 3) || 
	    !strncmp(new_name, "media_io", 8))
		strcpy(new_name, "baseio");
	else if (!strncmp(new_name, "divo", 4))
		strcpy(new_name, "divo") ;

}

/* Check if the given board corresponds to the global 
 * master io6
 */
int
is_master_baseio(nasid_t nasid,moduleid_t module,slotid_t slot)
{
	lboard_t	*board;

#if CONFIG_SGI_IP35 || CONFIG_IA64_SGI_SN1 || CONFIG_IA64_GENERIC
/* BRINGUP: If this works then look for callers of is_master_baseio()
 * (e.g. iograph.c) and let them pass in a slot if they want
 */
	board = find_lboard_module((lboard_t *)KL_CONFIG_INFO(nasid), module);
#else
	board = find_lboard_modslot((lboard_t *)KL_CONFIG_INFO(nasid),
				    module, slot);
#endif

#ifndef _STANDALONE
	{
		cnodeid_t cnode = NASID_TO_COMPACT_NODEID(nasid);

		if (!board && (NODEPDA(cnode)->xbow_peer != INVALID_NASID))
#if CONFIG_SGI_IP35 || CONFIG_IA64_SGI_SN1 || CONFIG_IA64_GENERIC
			board = find_lboard_module((lboard_t *)
				    KL_CONFIG_INFO(NODEPDA(cnode)->xbow_peer),
				    module);
#else
			board = find_lboard_modslot((lboard_t *)
				    KL_CONFIG_INFO(NODEPDA(cnode)->xbow_peer),
				    module, slot);
#endif
	}
#endif
	if (!board)
		return(0);
	return(board->brd_flags & GLOBAL_MASTER_IO6);
}
/*
 * Find the lboard structure and get the board name.
 * If we can't find the structure or it's too low a revision,
 * use default name.
 */
lboard_t *
get_board_name(nasid_t nasid, moduleid_t mod, slotid_t slot, char *name)
{
	lboard_t *brd;

	brd = find_lboard_modslot((lboard_t *)KL_CONFIG_INFO(nasid),
				  mod, slot);

#ifndef _STANDALONE
	{
		cnodeid_t cnode = NASID_TO_COMPACT_NODEID(nasid);

		if (!brd && (NODEPDA(cnode)->xbow_peer != INVALID_NASID))
			brd = find_lboard_modslot((lboard_t *)
				KL_CONFIG_INFO(NODEPDA(cnode)->xbow_peer),
				mod, slot);
	}
#endif

	if (!brd || (brd->brd_sversion < 2)) {
		strcpy(name, EDGE_LBL_XWIDGET);
	} else {
		nic_name_convert(brd->brd_name, name);
	}

	/*
 	 * PV # 540860
	 * If the name is not 'baseio' 
	 * get the lowest of all the names in the nic string.
	 * This is needed for boards like divo, which can have
	 * a bunch of daughter cards, but would like to be called
	 * divo. We could do this for baseio 
 	 * but it has some special case names that we would not
 	 * like to disturb at this point.
	 */

	/* gfx boards don't need any of this name scrambling */
	if (brd && (KLCLASS(brd->brd_type) == KLCLASS_GFX)) {
		return(brd);
	}

	if (!(!strcmp(name, "baseio") )) {
		if (brd) {
			sort_nic_names(brd) ;
			/* Convert to small case, '-' to '_' etc */
			nic_name_convert(brd->brd_name, name) ;
		}
	}

	return(brd);
}

int
get_cpu_slice(cpuid_t cpu)
{
	klcpu_t *acpu;
	if ((acpu = get_cpuinfo(cpu)) == NULL)
	    return -1;
	return acpu->cpu_info.physid;
}


/*
 * get_actual_nasid
 *
 *	Completely disabled brds have their klconfig on 
 *	some other nasid as they have no memory. But their
 *	actual nasid is hidden in the klconfig. Use this
 *	routine to get it. Works for normal boards too.
 */
nasid_t
get_actual_nasid(lboard_t *brd)
{
	klhub_t	*hub ;

	if (!brd)
		return INVALID_NASID ;

	/* find out if we are a completely disabled brd. */

        hub  = (klhub_t *)find_first_component(brd, KLSTRUCT_HUB);
	if (!hub)
                return INVALID_NASID ;
	if (!(hub->hub_info.flags & KLINFO_ENABLE))	/* disabled node brd */
		return hub->hub_info.physid ;
	else
		return brd->brd_nasid ;
}

int
xbow_port_io_enabled(nasid_t nasid, int link)
{
	lboard_t *brd;
	klxbow_t *xbow_p;

	/*
	 * look for boards that might contain an xbow or xbridge
	 */
	brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IOBRICK_XBOW);
	if (brd == NULL) return 0;
		
	if ((xbow_p = (klxbow_t *)find_component(brd, NULL, KLSTRUCT_XBOW))
	    == NULL)
	    return 0;

	if (!XBOW_PORT_TYPE_IO(xbow_p, link) || !XBOW_PORT_IS_ENABLED(xbow_p, link))
	    return 0;

	DBG("xbow_port_io_enabled:  brd 0x%p xbow_p 0x%p \n", brd, xbow_p);

	return 1;
}

void
board_to_path(lboard_t *brd, char *path)
{
	moduleid_t modnum;
	char *board_name;
#if !defined(CONFIG_SGI_IP35) && !defined(CONFIG_IA64_SGI_SN1) && !defined(CONFIG_IA64_GENERIC)
	slotid_t slot;
	char slot_name[SLOTNUM_MAXLENGTH];
#endif

	ASSERT(brd);

	switch (KLCLASS(brd->brd_type)) {

		case KLCLASS_NODE:
			board_name = EDGE_LBL_NODE;
			break;
		case KLCLASS_ROUTER:
			if (brd->brd_type == KLTYPE_META_ROUTER) {
				board_name = EDGE_LBL_META_ROUTER;
				hasmetarouter++;
			} else if (brd->brd_type == KLTYPE_REPEATER_ROUTER) {
				board_name = EDGE_LBL_REPEATER_ROUTER;
				hasmetarouter++;
			} else
				board_name = EDGE_LBL_ROUTER;
			break;
		case KLCLASS_MIDPLANE:
			board_name = EDGE_LBL_MIDPLANE;
			break;
		case KLCLASS_IO:
			board_name = EDGE_LBL_IO;
			break;
		case KLCLASS_IOBRICK:
			if (brd->brd_type == KLTYPE_PBRICK)
				board_name = EDGE_LBL_PBRICK;
			else if (brd->brd_type == KLTYPE_IBRICK)
				board_name = EDGE_LBL_IBRICK;
			else if (brd->brd_type == KLTYPE_XBRICK)
				board_name = EDGE_LBL_XBRICK;
			else
				board_name = EDGE_LBL_IOBRICK;
			break;
		default:
			board_name = EDGE_LBL_UNKNOWN;
	}
			
	modnum = brd->brd_module;

	ASSERT(modnum != MODULE_UNKNOWN && modnum != INVALID_MODULE);
#ifdef __ia64
	{
		char	buffer[16];
		memset(buffer, 0, 16);
		format_module_id(buffer, modnum, MODULE_FORMAT_BRIEF);
		sprintf(path, EDGE_LBL_MODULE "/%s/%s", buffer, board_name);
	}
#else
	sprintf(path, "%H/%s", modnum, board_name);
#endif
}

/*
 * Get the module number for a NASID.
 */
moduleid_t
get_module_id(nasid_t nasid)
{
	lboard_t *brd;

	brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27);

	if (!brd)
		return INVALID_MODULE;
	else
		return brd->brd_module;
}


#define MHZ	1000000


/* Get the canonical hardware graph name for the given pci component
 * on the given io board.
 */
void
device_component_canonical_name_get(lboard_t 	*brd,
				    klinfo_t 	*component,
				    char 	*name)
{
	moduleid_t 	modnum;
	slotid_t 	slot;
	char 		board_name[20];

	ASSERT(brd);

	/* Get the module number of this board */
	modnum = brd->brd_module;

	/* Convert the [ CLASS | TYPE ] kind of slotid
	 * into a string 
	 */
	slot = brd->brd_slot;
	ASSERT(modnum != MODULE_UNKNOWN && modnum != INVALID_MODULE);

	/* Get the io board name  */
	if (!brd || (brd->brd_sversion < 2)) {
		strcpy(name, EDGE_LBL_XWIDGET);
	} else {
		nic_name_convert(brd->brd_name, board_name);
	}

	/* Give out the canonical  name of the pci device*/
	sprintf(name, 
		"/dev/hw/"EDGE_LBL_MODULE "/%x/"EDGE_LBL_SLOT"/%s/"
		EDGE_LBL_PCI"/%d", 
		modnum, board_name,KLCF_BRIDGE_W_ID(component));
}

/*
 * Get the serial number of the main  component of a board
 * Returns 0 if a valid serial number is found
 * 1 otherwise.
 * Assumptions: Nic manufacturing string  has the following format
 *			*Serial:<serial_number>;*
 */
static int
component_serial_number_get(lboard_t 		*board,
			    klconf_off_t 	mfg_nic_offset,
			    char		*serial_number,
			    char		*key_pattern)
{

	char	*mfg_nic_string;
	char	*serial_string,*str;
	int	i;
	char	*serial_pattern = "Serial:";

	/* We have an error on a null mfg nic offset */
	if (!mfg_nic_offset)
		return(1);
	/* Get the hub's manufacturing nic information
	 * which is in the form of a pre-formatted string
	 */
	mfg_nic_string = 
		(char *)NODE_OFFSET_TO_K0(NASID_GET(board),
					  mfg_nic_offset);
	/* There is no manufacturing nic info */
	if (!mfg_nic_string)
		return(1);

	str = mfg_nic_string;
	/* Look for the key pattern first (if it is  specified)
	 * and then print the serial number corresponding to that.
	 */
	if (strcmp(key_pattern,"") && 
	    !(str = strstr(mfg_nic_string,key_pattern)))
		return(1);

	/* There is no serial number info in the manufacturing
	 * nic info
	 */
	if (!(serial_string = strstr(str,serial_pattern)))
		return(1);