satip-axe/kernel/arch/s390/include/asm/schid.h
2015-03-26 17:24:57 +01:00

35 lines
688 B
C

#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 */