diff options
Diffstat (limited to 'kernel/drivers/s390/char/hmcdrv_cache.h')
| -rw-r--r-- | kernel/drivers/s390/char/hmcdrv_cache.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/kernel/drivers/s390/char/hmcdrv_cache.h b/kernel/drivers/s390/char/hmcdrv_cache.h new file mode 100644 index 000000000..a14b57526 --- /dev/null +++ b/kernel/drivers/s390/char/hmcdrv_cache.h @@ -0,0 +1,24 @@ +/* + * 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__ */ |