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8f933b1043
This device driver allows accessing a HMC drive CD/DVD-ROM. It can be used in a LPAR and z/VM environment. Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Ralf Hoppe <rhoppe@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
25 lines
616 B
C
25 lines
616 B
C
/*
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* SE/HMC Drive (Read) Cache Functions
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*
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* Copyright IBM Corp. 2013
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* Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
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*/
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#ifndef __HMCDRV_CACHE_H__
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#define __HMCDRV_CACHE_H__
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#include <linux/mmzone.h>
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#include "hmcdrv_ftp.h"
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#define HMCDRV_CACHE_SIZE_DFLT (MAX_ORDER_NR_PAGES * PAGE_SIZE / 2UL)
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typedef ssize_t (*hmcdrv_cache_ftpfunc)(const struct hmcdrv_ftp_cmdspec *ftp,
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size_t *fsize);
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ssize_t hmcdrv_cache_cmd(const struct hmcdrv_ftp_cmdspec *ftp,
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hmcdrv_cache_ftpfunc func);
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int hmcdrv_cache_startup(size_t cachesize);
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void hmcdrv_cache_shutdown(void);
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#endif /* __HMCDRV_CACHE_H__ */
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