[deliverable/linux.git] / arch / s390 / include / asm / schid.h

#ifndef ASM_SCHID_H
#define ASM_SCHID_H

#include <linux/types.h>

struct subchannel_id {
	__u32 cssid : 8;
	__u32 : 4;
	__u32 m : 1;
	__u32 ssid : 2;
	__u32 one : 1;
	__u32 sch_no : 16;
} __attribute__ ((packed, aligned(4)));

#ifdef __KERNEL__
#include <linux/string.h>

/* Helper function for sane state of pre-allocated subchannel_id. */
static inline void
init_subchannel_id(struct subchannel_id *schid)
{
	memset(schid, 0, sizeof(struct subchannel_id));
	schid->one = 1;
}

static inline int
schid_equal(struct subchannel_id *schid1, struct subchannel_id *schid2)
{
	return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
}

#endif /* __KERNEL__ */

#endif /* ASM_SCHID_H */
Commit	Line	Data
9d92a7e1 CH	1	#ifndef ASM_SCHID_H
9d92a7e1 CH	2	#define ASM_SCHID_H
a8237fc4	3
0680ba01 HC	4	#include <linux/types.h>
0680ba01 HC	5
a8237fc4	6	struct subchannel_id {
9d92a7e1 CH	7	__u32 cssid : 8;
	8	__u32 : 4;
	9	__u32 m : 1;
	10	__u32 ssid : 2;
	11	__u32 one : 1;
	12	__u32 sch_no : 16;
	13	} __attribute__ ((packed, aligned(4)));
a8237fc4	14
626f3117	15	#ifdef __KERNEL__
1378ee9b	16	#include <linux/string.h>
a8237fc4 CH	17
	18	/* Helper function for sane state of pre-allocated subchannel_id. */
	19	static inline void
	20	init_subchannel_id(struct subchannel_id *schid)
	21	{
	22	memset(schid, 0, sizeof(struct subchannel_id));
	23	schid->one = 1;
	24	}
	25
	26	static inline int
	27	schid_equal(struct subchannel_id schid1, struct subchannel_id schid2)
	28	{
	29	return !memcmp(schid1, schid2, sizeof(struct subchannel_id));
	30	}
	31
626f3117 AB	32	#endif /* __KERNEL__ */
626f3117 AB	33
9d92a7e1	34	#endif /* ASM_SCHID_H */