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authorMichael Holzheu <holzheu@linux.vnet.ibm.com>2013-06-06 09:52:08 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2013-06-26 21:10:13 +0200
commitd475f942b1dd6a897dac3ad4ed98d6994b275378 (patch)
tree43f599275ef7ac5350ea25f8f1eeb2690d6dc4e4 /arch/s390/include/uapi/asm/sclp_ctl.h
parente9a8f32a98a6099b009ea7da4f299bb5427db126 (diff)
s390/sclp: Add SCLP character device driver
Add a character misc device "sclp_ctl" that allows to run SCCBs from user space using the SCLP_CTL_SCCB ioctl. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/uapi/asm/sclp_ctl.h')
-rw-r--r--arch/s390/include/uapi/asm/sclp_ctl.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/sclp_ctl.h b/arch/s390/include/uapi/asm/sclp_ctl.h
new file mode 100644
index 000000000000..f2818613ee41
--- /dev/null
+++ b/arch/s390/include/uapi/asm/sclp_ctl.h
@@ -0,0 +1,24 @@
+/*
+ * IOCTL interface for SCLP
+ *
+ * Copyright IBM Corp. 2012
+ *
+ * Author: Michael Holzheu <holzheu@linux.vnet.ibm.com>
+ */
+
+#ifndef _ASM_SCLP_CTL_H
+#define _ASM_SCLP_CTL_H
+
+#include <linux/types.h>
+
+struct sclp_ctl_sccb {
+ __u32 cmdw;
+ __u64 sccb;
+} __attribute__((packed));
+
+#define SCLP_CTL_IOCTL_MAGIC 0x10
+
+#define SCLP_CTL_SCCB \
+ _IOWR(SCLP_CTL_IOCTL_MAGIC, 0x10, struct sclp_ctl_sccb)
+
+#endif

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