mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
45 lines
778 B
C
45 lines
778 B
C
/*
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* zipl - zSeries Initial Program Loader tool
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*
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* DASD ECKD specific functions
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*
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* Copyright IBM Corp. 2013, 2017
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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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*/
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#ifndef ECKD_H
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#define ECKD_H
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#include "stage2.h"
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/* CCW COMMANDS */
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#define DASD_ECKD_CCW_SEEK 0x07
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#define DASD_ECKD_CCW_TIC 0x08
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#define DASD_ECKD_CCW_SEARCH 0x31
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#define DASD_ECKD_CCW_READ_MT 0x86
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struct ch_t {
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uint16_t cyl;
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uint16_t head;
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} __packed;
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struct chr_t {
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uint16_t cyl;
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uint16_t head;
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uint8_t record;
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} __packed __aligned(8);
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struct seek_arg {
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uint16_t zeroes;
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struct ch_t ch;
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} __packed __aligned(8);
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struct indirect_block {
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uint64_t *block;
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} __packed;
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#endif /* ECKD_H */
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