| /* | |
| * Copyright IBM Corp. 2007, 2012 | |
| * Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com> | |
| */ | |
| #ifndef _ASM_S390_CHPID_H | |
| #define _ASM_S390_CHPID_H | |
| #include <uapi/asm/chpid.h> | |
| #include <asm/cio.h> | |
| struct channel_path_desc { | |
| u8 flags; | |
| u8 lsn; | |
| u8 desc; | |
| u8 chpid; | |
| u8 swla; | |
| u8 zeroes; | |
| u8 chla; | |
| u8 chpp; | |
| } __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 */ |