LXR linux/drivers/s390/char/hmcdrv

   1/*
   2 *    SE/HMC Drive (Read) Cache Functions
   3 *
   4 *    Copyright IBM Corp. 2013
   5 *    Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
   6 */
   7
   8#ifndef __HMCDRV_CACHE_H__
   9#define __HMCDRV_CACHE_H__
  10
  11#include <linux/mmzone.h>
  12#include "hmcdrv_ftp.h"
  13
  14#define HMCDRV_CACHE_SIZE_DFLT  (MAX_ORDER_NR_PAGES * PAGE_SIZE / 2UL)
  15
  16typedef ssize_t (*hmcdrv_cache_ftpfunc)(const struct hmcdrv_ftp_cmdspec *ftp,
  17                                        size_t *fsize);
  18
  19ssize_t hmcdrv_cache_cmd(const struct hmcdrv_ftp_cmdspec *ftp,
  20                         hmcdrv_cache_ftpfunc func);
  21int hmcdrv_cache_startup(size_t cachesize);
  22void hmcdrv_cache_shutdown(void);
  23
  24#endif   /* __HMCDRV_CACHE_H__ */
  25