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b41ac66f36
Consolidate type definitions in order to avoid duplicated code, getting better compiler support, and to avoid confusing namings for the same thing - e.g. `blk_end` vs. `blockcnt` field name used in the old `struct fba_dump_param` definitions. It also allows us to get rid of two `uint64_t` casts. While at it, fix the documentation of `struct eckd_blockptr`. Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com> Reviewed-by: Steffen Eiden <seiden@linux.ibm.com> Reviewed-by: Stefan Haberland <sth@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
71 lines
1.1 KiB
C
71 lines
1.1 KiB
C
/*
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* Boot and dump related definitions
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*
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* Copyright IBM Corp. 2022
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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 BOOT_DEFS_H
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#define BOOT_DEFS_H
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#include <stdint.h>
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#include "lib/zt_common.h"
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/*
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* ECKD dump parameter
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*/
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struct eckd_dump_param {
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uint32_t blk_start;
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uint32_t blk_end;
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uint16_t blk_size;
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uint8_t num_heads;
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uint8_t bpt;
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char reserved[4];
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} __packed;
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/*
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* FBA dump parameter
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*/
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struct fba_dump_param {
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uint32_t res1;
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uint32_t blk_start;
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uint32_t res2;
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uint32_t blk_end;
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} __packed;
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/*
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* SCSI dump parameter
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*/
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struct scsi_dump_param {
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uint64_t block;
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uint64_t reserved;
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} __packed;
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/*
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* Layout of block pointer for linear devices
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* e.g. SCSI
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*/
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struct linear_blockptr {
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uint64_t blockno;
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uint16_t size;
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uint16_t blockct;
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uint8_t reserved[4];
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} __packed;
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/*
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* Layout of block pointer for cylinder/head/sector devices
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* e.g. ECKD
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*/
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struct eckd_blockptr {
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uint16_t cyl;
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uint16_t head;
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uint8_t sec;
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uint16_t size;
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uint8_t blockct;
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uint8_t reserved[8];
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} __packed;
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#endif /* BOOT_DEFS_H */
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