mirror of
https://github.com/ibm-s390-linux/s390-tools.git
synced 2026-08-05 02:14:52 +00:00
ee50f20c11
Allow users to fetch zmemtopo data in parse-able formats, such as csv, json, json-seq and pairs. Signed-off-by: Mete Durlu <meted@linux.ibm.com> Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
|
|
* zmemtopo - Show CEC memory topology data on System z
|
|
*
|
|
* Copyright IBM Corp. 2025
|
|
*
|
|
* s390-tools is free software; you can redistribute it and/or modify
|
|
* it under the terms of the MIT license. See LICENSE for details.
|
|
*/
|
|
|
|
#ifndef ZMEMTOPO_H
|
|
#define ZMEMTOPO_H
|
|
|
|
#include <stdint.h>
|
|
#include <sys/ioctl.h>
|
|
|
|
#include "lib/zt_common.h"
|
|
|
|
/* IOCTL macros and structs */
|
|
struct diag310_memtop {
|
|
uint64_t address;
|
|
uint64_t nesting_lvl;
|
|
};
|
|
|
|
/* Diag IOCTL macros */
|
|
#define DIAG_PATH "/dev/diag"
|
|
#define DIAG_MAGIC_STR 'D'
|
|
#define DIAG310_GET_STRIDE _IOR(DIAG_MAGIC_STR, 0x79, size_t)
|
|
#define DIAG310_GET_MEMTOPLEN _IOWR(DIAG_MAGIC_STR, 0x7a, size_t)
|
|
#define DIAG310_GET_MEMTOPBUF _IOWR(DIAG_MAGIC_STR, 0x7b, struct diag310_memtop)
|
|
/* sorting fields */
|
|
#define SORT_NR 1
|
|
#define SORT_NAME 2
|
|
#define SORT_SIZE 3
|
|
/* topology nesting levels */
|
|
#define NESTING_LVL_MAX 6
|
|
#define NESTING_LVL_DEF 3
|
|
#define NESTING_LVL_MIN 1
|
|
/* formatting macros */
|
|
#define LPAR_NAME_LEN 8
|
|
#define LPAR_NO_LEN 3
|
|
#define ENTRY_DIGIT 3
|
|
#define SUM_PAD 4
|
|
#define LEVEL_LEN 12
|
|
#define CELL_LEN 32
|
|
/* formatting symbols */
|
|
#define UTF_V "\342\224\202" /* | */
|
|
#define UTF_VR "\342\224\234" /* |- */
|
|
#define UTF_UR "\342\224\224" /* '- */
|
|
#define UTF_SP "\342\200\200" /* space */
|
|
#define ASCII_V "|"
|
|
#define ASCII_VR "|-"
|
|
#define ASCII_UR "`-"
|
|
/* scaling macros */
|
|
#define SCALE_KB (1024UL)
|
|
#define SCALE_MB (SCALE_KB * 1024UL)
|
|
#define SCALE_GB (SCALE_MB * 1024UL)
|
|
#define SCALE_TB (SCALE_GB * 1024UL)
|
|
#define UNIT_LEN 2
|
|
/* misc */
|
|
#define TOD_LEN 12
|
|
|
|
/* IOCTL data parsing structures */
|
|
struct diag310_t_hdr {
|
|
uint32_t tod[3]; /* time of day */
|
|
uint8_t lpar_cnt; /* lpar count in CEC */
|
|
uint8_t reserved;
|
|
uint16_t this_part; /* lpar number of the current system */
|
|
} __packed;
|
|
|
|
struct diag310_p_hdr {
|
|
char pname[8]; /* partition name */
|
|
uint8_t pn; /* partition number */
|
|
uint8_t tie; /* count of entries following this header */
|
|
uint16_t reserved1;
|
|
uint32_t reserved2;
|
|
} __packed;
|
|
|
|
struct diag310_tle {
|
|
uint8_t cl; /* container level for this entry */
|
|
uint8_t ice_nr; /* number of increments for this entry */
|
|
uint16_t ices[]; /* memory increment values */
|
|
};
|
|
|
|
/* structures to represent and format the parsed data */
|
|
struct stride_unit {
|
|
char suffix[UNIT_LEN];
|
|
unsigned long scale;
|
|
unsigned long size;
|
|
};
|
|
|
|
struct view_data {
|
|
unsigned int cell_len;
|
|
unsigned int entry_len;
|
|
struct stride_unit unit;
|
|
unsigned int level_len[NESTING_LVL_MAX];
|
|
unsigned int end_flag[NESTING_LVL_MAX + 1];
|
|
};
|
|
|
|
struct topology_entry {
|
|
unsigned int count;
|
|
unsigned short *increments;
|
|
};
|
|
|
|
struct partition {
|
|
struct util_list_node node;
|
|
unsigned int part_nr;
|
|
unsigned int increment_total;
|
|
char part_name[LPAR_NAME_LEN + 1];
|
|
struct topology_entry entries[NESTING_LVL_MAX];
|
|
};
|
|
|
|
struct partitions {
|
|
struct util_list *list;
|
|
char tod[TOD_LEN];
|
|
unsigned int this_part;
|
|
};
|
|
|
|
#endif /* ZMEMTOPO_H */
|
|
|