mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-25 15:46:24 +07:00
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
/*
|
|
* SE/HMC Drive (Read) Cache Functions
|
|
*
|
|
* Copyright IBM Corp. 2013
|
|
* Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
|
|
*/
|
|
|
|
#ifndef __HMCDRV_CACHE_H__
|
|
#define __HMCDRV_CACHE_H__
|
|
|
|
#include <linux/mmzone.h>
|
|
#include "hmcdrv_ftp.h"
|
|
|
|
#define HMCDRV_CACHE_SIZE_DFLT (MAX_ORDER_NR_PAGES * PAGE_SIZE / 2UL)
|
|
|
|
typedef ssize_t (*hmcdrv_cache_ftpfunc)(const struct hmcdrv_ftp_cmdspec *ftp,
|
|
size_t *fsize);
|
|
|
|
ssize_t hmcdrv_cache_cmd(const struct hmcdrv_ftp_cmdspec *ftp,
|
|
hmcdrv_cache_ftpfunc func);
|
|
int hmcdrv_cache_startup(size_t cachesize);
|
|
void hmcdrv_cache_shutdown(void);
|
|
|
|
#endif /* __HMCDRV_CACHE_H__ */
|