projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| f5daba1d HC |
1 | /* |
| 2 | * Data definitions for channel report processing | |
| a53c8fab | 3 | * Copyright IBM Corp. 2000, 2009 |
| f5daba1d HC |
4 | * Author(s): Ingo Adlung <adlung@de.ibm.com>, |
| 5 | * Martin Schwidefsky <schwidefsky@de.ibm.com>, | |
| 6 | * Cornelia Huck <cornelia.huck@de.ibm.com>, | |
| 7 | * Heiko Carstens <heiko.carstens@de.ibm.com>, | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef _ASM_S390_CRW_H | |
| 11 | #define _ASM_S390_CRW_H | |
| 12 | ||
| 13 | #include <linux/types.h> | |
| 14 | ||
| 15 | /* | |
| 16 | * Channel Report Word | |
| 17 | */ | |
| 18 | struct crw { | |
| 19 | __u32 res1 : 1; /* reserved zero */ | |
| 20 | __u32 slct : 1; /* solicited */ | |
| 21 | __u32 oflw : 1; /* overflow */ | |
| 22 | __u32 chn : 1; /* chained */ | |
| 23 | __u32 rsc : 4; /* reporting source code */ | |
| 24 | __u32 anc : 1; /* ancillary report */ | |
| 25 | __u32 res2 : 1; /* reserved zero */ | |
| 26 | __u32 erc : 6; /* error-recovery code */ | |
| 27 | __u32 rsid : 16; /* reporting-source ID */ | |
| 28 | } __attribute__ ((packed)); | |
| 29 | ||
| 30 | typedef void (*crw_handler_t)(struct crw *, struct crw *, int); | |
| 31 | ||
| 32 | extern int crw_register_handler(int rsc, crw_handler_t handler); | |
| 33 | extern void crw_unregister_handler(int rsc); | |
| 34 | extern void crw_handle_channel_report(void); | |
| b4563e89 | 35 | void crw_wait_for_channel_report(void); |
| f5daba1d HC |
36 | |
| 37 | #define NR_RSCS 16 | |
| 38 | ||
| 39 | #define CRW_RSC_MONITOR 0x2 /* monitoring facility */ | |
| 40 | #define CRW_RSC_SCH 0x3 /* subchannel */ | |
| 41 | #define CRW_RSC_CPATH 0x4 /* channel path */ | |
| 42 | #define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */ | |
| 43 | #define CRW_RSC_CSS 0xB /* channel subsystem */ | |
| 44 | ||
| 45 | #define CRW_ERC_EVENT 0x00 /* event information pending */ | |
| 46 | #define CRW_ERC_AVAIL 0x01 /* available */ | |
| 47 | #define CRW_ERC_INIT 0x02 /* initialized */ | |
| 48 | #define CRW_ERC_TERROR 0x03 /* temporary error */ | |
| 49 | #define CRW_ERC_IPARM 0x04 /* installed parm initialized */ | |
| 50 | #define CRW_ERC_TERM 0x05 /* terminal */ | |
| 51 | #define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */ | |
| 52 | #define CRW_ERC_PERRI 0x07 /* perm. error, facility init */ | |
| 53 | #define CRW_ERC_PMOD 0x08 /* installed parameters modified */ | |
| 54 | ||
| f5daba1d | 55 | #endif /* _ASM_S390_CRW_H */ |