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 */
 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 */
18struct 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
30typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
31
32extern int crw_register_handler(int rsc, crw_handler_t handler);
33extern void crw_unregister_handler(int rsc);
34extern void crw_handle_channel_report(void);
35void crw_wait_for_channel_report(void);
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
55#endif /* _ASM_S390_CRW_H */

 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 */