/* SPDX-License-Identifier: GPL-2.0-or-later
 *
 * 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) 2020 Hewlett Packard Enterprise Development LP. All rights reserved.
 */

#ifndef _ASM_UV_GEO_H
#define _ASM_UV_GEO_H

/* Type declarations */

/* Size of a geoid_s structure (must be before decl. of geoid_u) */
#define GEOID_SIZE      8

/* Fields common to all substructures */
struct geo_common_s {
        unsigned char type;             /* What type of h/w is named by this geoid_s */
        unsigned char blade;
        unsigned char slot;             /* slot is IRU */
        unsigned char upos;
        unsigned char rack;
};

/* Additional fields for particular types of hardware */
struct geo_node_s {
        struct geo_common_s common;             /* No additional fields needed */
};

struct geo_rtr_s {
        struct geo_common_s common;             /* No additional fields needed */
};

struct geo_iocntl_s {
        struct geo_common_s common;             /* No additional fields needed */
};

struct geo_pcicard_s {
        struct geo_iocntl_s common;
        char bus;                               /* Bus/widget number */
        char slot;                              /* PCI slot number */
};

/* Subcomponents of a node */
struct geo_cpu_s {
        struct geo_node_s node;
        unsigned char   socket:4,       /* Which CPU on the node */
                        thread:4;
        unsigned char   core;
};

struct geo_mem_s {
        struct geo_node_s node;
        char membus;                    /* The memory bus on the node */
        char memslot;                   /* The memory slot on the bus */
};

union geoid_u {
        struct geo_common_s common;
        struct geo_node_s node;
        struct geo_iocntl_s iocntl;
        struct geo_pcicard_s pcicard;
        struct geo_rtr_s rtr;
        struct geo_cpu_s cpu;
        struct geo_mem_s mem;
        char padsize[GEOID_SIZE];
};

/* Defined constants */

#define GEO_MAX_LEN     48

#define GEO_TYPE_INVALID        0
#define GEO_TYPE_MODULE         1
#define GEO_TYPE_NODE           2
#define GEO_TYPE_RTR            3
#define GEO_TYPE_IOCNTL         4
#define GEO_TYPE_IOCARD         5
#define GEO_TYPE_CPU            6
#define GEO_TYPE_MEM            7
#define GEO_TYPE_MAX            (GEO_TYPE_MEM+1)

static inline int geo_rack(union geoid_u g)
{
        return (g.common.type == GEO_TYPE_INVALID) ?
                -1 : g.common.rack;
}

static inline int geo_slot(union geoid_u g)
{
        return (g.common.type == GEO_TYPE_INVALID) ?
                -1 : g.common.upos;
}

static inline int geo_blade(union geoid_u g)
{
        return (g.common.type == GEO_TYPE_INVALID) ?
                -1 : g.common.blade * 2 + g.common.slot;
}

#endif /* _ASM_UV_GEO_H */