1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * SE/HMC Drive (Read) Cache Functions 4 * 5 * Copyright IBM Corp. 2013 6 * Author(s): Ralf Hoppe (rhoppe@de.ibm.com) 7 */ 8 9 #ifndef __HMCDRV_CACHE_H__ 10 #define __HMCDRV_CACHE_H__ 11 12 #include <linux/mmzone.h> 13 #include "hmcdrv_ftp.h" 14 15 #define HMCDRV_CACHE_SIZE_DFLT (MAX_ORDER_NR_PAGES * PAGE_SIZE / 2UL) 16 17 typedef ssize_t (*hmcdrv_cache_ftpfunc)(const struct hmcdrv_ftp_cmdspec *ftp, 18 size_t *fsize); 19 20 ssize_t hmcdrv_cache_cmd(const struct hmcdrv_ftp_cmdspec *ftp, 21 hmcdrv_cache_ftpfunc func); 22 int hmcdrv_cache_startup(size_t cachesize); 23 void hmcdrv_cache_shutdown(void); 24 25 #endif /* __HMCDRV_CACHE_H__ */ 26