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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/s390/char/hmcdrv_cache.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/s390/char/hmcdrv_cache.h')
| -rw-r--r-- | drivers/s390/char/hmcdrv_cache.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/s390/char/hmcdrv_cache.h b/drivers/s390/char/hmcdrv_cache.h new file mode 100644 index 000000000..d69f9fe87 --- /dev/null +++ b/drivers/s390/char/hmcdrv_cache.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * 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__ */ |