e5854a5839
Add a new attribute to the channel-path sysfs directory through which channel-path configure operations can be triggered. Also listen for hardware events requesting channel-path configure operations and process them accordingly. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
54 lines
997 B
C
54 lines
997 B
C
/*
|
|
* drivers/s390/cio/chpid.h
|
|
*
|
|
* Copyright IBM Corp. 2007
|
|
* Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
|
|
*/
|
|
|
|
#ifndef _ASM_S390_CHPID_H
|
|
#define _ASM_S390_CHPID_H _ASM_S390_CHPID_H
|
|
|
|
#include <linux/string.h>
|
|
#include <asm/types.h>
|
|
#include <asm/cio.h>
|
|
|
|
#define __MAX_CHPID 255
|
|
|
|
struct chp_id {
|
|
u8 reserved1;
|
|
u8 cssid;
|
|
u8 reserved2;
|
|
u8 id;
|
|
} __attribute__((packed));
|
|
|
|
static inline void chp_id_init(struct chp_id *chpid)
|
|
{
|
|
memset(chpid, 0, sizeof(struct chp_id));
|
|
}
|
|
|
|
static inline int chp_id_is_equal(struct chp_id *a, struct chp_id *b)
|
|
{
|
|
return (a->id == b->id) && (a->cssid == b->cssid);
|
|
}
|
|
|
|
static inline void chp_id_next(struct chp_id *chpid)
|
|
{
|
|
if (chpid->id < __MAX_CHPID)
|
|
chpid->id++;
|
|
else {
|
|
chpid->id = 0;
|
|
chpid->cssid++;
|
|
}
|
|
}
|
|
|
|
static inline int chp_id_is_valid(struct chp_id *chpid)
|
|
{
|
|
return (chpid->cssid <= __MAX_CSSID);
|
|
}
|
|
|
|
|
|
#define chp_id_for_each(c) \
|
|
for (chp_id_init(c); chp_id_is_valid(c); chp_id_next(c))
|
|
|
|
#endif /* _ASM_S390_CHPID_H */
|