Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / s390 / char / hmcdrv_mod.c

diff --git a/kernel/drivers/s390/char/hmcdrv_mod.c b/kernel/drivers/s390/char/hmcdrv_mod.c
new file mode 100644 (file)
index 0000000..251a318
--- /dev/null
+++ b/kernel/drivers/s390/char/hmcdrv_mod.c
@@ -0,0 +1,63 @@
+/*
+ *    HMC Drive DVD Module
+ *
+ *    Copyright IBM Corp. 2013
+ *    Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
+ */
+
+#define KMSG_COMPONENT "hmcdrv"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/stat.h>
+
+#include "hmcdrv_ftp.h"
+#include "hmcdrv_dev.h"
+#include "hmcdrv_cache.h"
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Copyright 2013 IBM Corporation");
+MODULE_DESCRIPTION("HMC drive DVD access");
+
+/*
+ * module parameter 'cachesize'
+ */
+static size_t hmcdrv_mod_cachesize = HMCDRV_CACHE_SIZE_DFLT;
+module_param_named(cachesize, hmcdrv_mod_cachesize, ulong, S_IRUGO);
+
+/**
+ * hmcdrv_mod_init() - module init function
+ */
+static int __init hmcdrv_mod_init(void)
+{
+       int rc = hmcdrv_ftp_probe(); /* perform w/o cache */
+
+       if (rc)
+               return rc;
+
+       rc = hmcdrv_cache_startup(hmcdrv_mod_cachesize);
+
+       if (rc)
+               return rc;
+
+       rc = hmcdrv_dev_init();
+
+       if (rc)
+               hmcdrv_cache_shutdown();
+
+       return rc;
+}
+
+/**
+ * hmcdrv_mod_exit() - module exit function
+ */
+static void __exit hmcdrv_mod_exit(void)
+{
+       hmcdrv_dev_exit();
+       hmcdrv_cache_shutdown();
+}
+
+module_init(hmcdrv_mod_init);
+module_exit(hmcdrv_mod_exit);