1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Data definitions for channel report processing 4 * Copyright IBM Corp. 2000, 2009 5 * Author(s): Ingo Adlung <adlung@de.ibm.com>, 6 * Martin Schwidefsky <schwidefsky@de.ibm.com>, 7 * Cornelia Huck <cornelia.huck@de.ibm.com>, 8 * Heiko Carstens <heiko.carstens@de.ibm.com>, 9 */ 10 11#ifndef _ASM_S390_CRW_H 12#define _ASM_S390_CRW_H 13 14#include <linux/types.h> 15 16/* 17 * Channel Report Word 18 */ 19struct crw { 20 __u32 res1 : 1; /* reserved zero */ 21 __u32 slct : 1; /* solicited */ 22 __u32 oflw : 1; /* overflow */ 23 __u32 chn : 1; /* chained */ 24 __u32 rsc : 4; /* reporting source code */ 25 __u32 anc : 1; /* ancillary report */ 26 __u32 res2 : 1; /* reserved zero */ 27 __u32 erc : 6; /* error-recovery code */ 28 __u32 rsid : 16; /* reporting-source ID */ 29} __attribute__ ((packed)); 30 31typedef void (*crw_handler_t)(struct crw *, struct crw *, int); 32 33extern int crw_register_handler(int rsc, crw_handler_t handler); 34extern void crw_unregister_handler(int rsc); 35extern void crw_handle_channel_report(void); 36void crw_wait_for_channel_report(void); 37 38#define NR_RSCS 16 39 40#define CRW_RSC_MONITOR 0x2 /* monitoring facility */ 41#define CRW_RSC_SCH 0x3 /* subchannel */ 42#define CRW_RSC_CPATH 0x4 /* channel path */ 43#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */ 44#define CRW_RSC_CSS 0xB /* channel subsystem */ 45 46#define CRW_ERC_EVENT 0x00 /* event information pending */ 47#define CRW_ERC_AVAIL 0x01 /* available */ 48#define CRW_ERC_INIT 0x02 /* initialized */ 49#define CRW_ERC_TERROR 0x03 /* temporary error */ 50#define CRW_ERC_IPARM 0x04 /* installed parm initialized */ 51#define CRW_ERC_TERM 0x05 /* terminal */ 52#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */ 53#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */ 54#define CRW_ERC_PMOD 0x08 /* installed parameters modified */ 55 56#endif /* _ASM_S390_CRW_H */ 57