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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /drivers/s390/char/hmcdrv_cache.h
Initial import
Diffstat (limited to 'drivers/s390/char/hmcdrv_cache.h')
-rw-r--r--drivers/s390/char/hmcdrv_cache.h24
1 files changed, 24 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..a14b57526
--- /dev/null
+++ b/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__ */