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ce1464ad5f
Replace array length of lpar name with LPAR_NAME_LEN macro. Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Mete Durlu <meted@linux.ibm.com> Signed-off-by: Steffen Eiden <seiden@linux.ibm.com>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
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* zmemtopo - Show CEC memory topology data on System z
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*
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* Copyright IBM Corp. 2025
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef ZMEMTOPO_H
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#define ZMEMTOPO_H
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#include <stdint.h>
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#include <sys/ioctl.h>
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#include "lib/zt_common.h"
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/* IOCTL macros and structs */
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struct diag310_memtop {
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uint64_t address;
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uint64_t nesting_lvl;
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};
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/* Diag IOCTL macros */
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#define DIAG_PATH "/dev/diag"
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#define DIAG_MAGIC_STR 'D'
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#define DIAG310_GET_STRIDE _IOR(DIAG_MAGIC_STR, 0x79, size_t)
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#define DIAG310_GET_MEMTOPLEN _IOWR(DIAG_MAGIC_STR, 0x7a, size_t)
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#define DIAG310_GET_MEMTOPBUF _IOWR(DIAG_MAGIC_STR, 0x7b, struct diag310_memtop)
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/* sorting fields */
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#define SORT_NR 1
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#define SORT_NAME 2
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#define SORT_SIZE 3
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/* topology nesting levels */
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#define NESTING_LVL_MAX 6
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#define NESTING_LVL_DEF 3
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#define NESTING_LVL_MIN 1
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/* formatting macros */
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#define LPAR_NAME_LEN 8
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#define LPAR_NO_LEN 3
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#define ENTRY_DIGIT 3
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#define SUM_PAD 4
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#define LEVEL_LEN 12
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#define CELL_LEN 32
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/* formatting symbols */
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#define UTF_V "\342\224\202" /* | */
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#define UTF_VR "\342\224\234" /* |- */
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#define UTF_UR "\342\224\224" /* '- */
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#define UTF_SP "\342\200\200" /* space */
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#define ASCII_V "|"
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#define ASCII_VR "|-"
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#define ASCII_UR "`-"
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/* scaling macros */
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#define SCALE_KB (1024UL)
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#define SCALE_MB (SCALE_KB * 1024UL)
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#define SCALE_GB (SCALE_MB * 1024UL)
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#define SCALE_TB (SCALE_GB * 1024UL)
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#define UNIT_LEN 2
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/* misc */
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#define TOD_LEN 12
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/* IOCTL data parsing structures */
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struct diag310_t_hdr {
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uint32_t tod[3]; /* time of day */
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uint8_t lpar_cnt; /* lpar count in CEC */
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uint8_t reserved;
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uint16_t this_part; /* lpar number of the current system */
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} __packed;
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struct diag310_p_hdr {
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char pname[LPAR_NAME_LEN]; /* partition name */
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uint8_t pn; /* partition number */
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uint8_t tie; /* count of entries following this header */
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uint16_t reserved1;
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uint32_t reserved2;
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} __packed;
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struct diag310_tle {
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uint8_t cl; /* container level for this entry */
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uint8_t ice_nr; /* number of increments for this entry */
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uint16_t ices[]; /* memory increment values */
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};
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/* structures to represent and format the parsed data */
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struct stride_unit {
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char suffix[UNIT_LEN];
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unsigned long scale;
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unsigned long size;
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};
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struct view_data {
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unsigned int cell_len;
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unsigned int entry_len;
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struct stride_unit unit;
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unsigned int level_len[NESTING_LVL_MAX];
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unsigned int end_flag[NESTING_LVL_MAX + 1];
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};
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struct topology_entry {
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unsigned int count;
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unsigned short *increments;
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};
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struct partition {
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struct util_list_node node;
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unsigned int part_nr;
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unsigned int increment_total;
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char part_name[LPAR_NAME_LEN + 1];
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struct topology_entry entries[NESTING_LVL_MAX];
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};
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struct partitions {
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struct util_list *list;
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char tod[TOD_LEN];
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unsigned int this_part;
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};
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#endif /* ZMEMTOPO_H */
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