a53c8fab3f
Remove the file name from the comment at top of many files. In most cases the file name was wrong anyway, so it's rather pointless. Also unify the IBM copyright statement. We did have a lot of sightly different statements and wanted to change them one after another whenever a file gets touched. However that never happened. Instead people start to take the old/"wrong" statements to use as a template for new files. So unify all of them in one go. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
69 lines
2 KiB
C
69 lines
2 KiB
C
/*
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* Data definitions for channel report processing
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* Copyright IBM Corp. 2000, 2009
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* Author(s): Ingo Adlung <adlung@de.ibm.com>,
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* Martin Schwidefsky <schwidefsky@de.ibm.com>,
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* Cornelia Huck <cornelia.huck@de.ibm.com>,
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* Heiko Carstens <heiko.carstens@de.ibm.com>,
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*/
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#ifndef _ASM_S390_CRW_H
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#define _ASM_S390_CRW_H
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#include <linux/types.h>
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/*
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* Channel Report Word
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*/
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struct crw {
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__u32 res1 : 1; /* reserved zero */
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__u32 slct : 1; /* solicited */
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__u32 oflw : 1; /* overflow */
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__u32 chn : 1; /* chained */
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__u32 rsc : 4; /* reporting source code */
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__u32 anc : 1; /* ancillary report */
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__u32 res2 : 1; /* reserved zero */
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__u32 erc : 6; /* error-recovery code */
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__u32 rsid : 16; /* reporting-source ID */
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} __attribute__ ((packed));
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typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
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extern int crw_register_handler(int rsc, crw_handler_t handler);
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extern void crw_unregister_handler(int rsc);
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extern void crw_handle_channel_report(void);
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void crw_wait_for_channel_report(void);
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#define NR_RSCS 16
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#define CRW_RSC_MONITOR 0x2 /* monitoring facility */
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#define CRW_RSC_SCH 0x3 /* subchannel */
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#define CRW_RSC_CPATH 0x4 /* channel path */
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#define CRW_RSC_CONFIG 0x9 /* configuration-alert facility */
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#define CRW_RSC_CSS 0xB /* channel subsystem */
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#define CRW_ERC_EVENT 0x00 /* event information pending */
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#define CRW_ERC_AVAIL 0x01 /* available */
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#define CRW_ERC_INIT 0x02 /* initialized */
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#define CRW_ERC_TERROR 0x03 /* temporary error */
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#define CRW_ERC_IPARM 0x04 /* installed parm initialized */
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#define CRW_ERC_TERM 0x05 /* terminal */
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#define CRW_ERC_PERRN 0x06 /* perm. error, fac. not init */
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#define CRW_ERC_PERRI 0x07 /* perm. error, facility init */
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#define CRW_ERC_PMOD 0x08 /* installed parameters modified */
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static inline int stcrw(struct crw *pcrw)
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{
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int ccode;
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asm volatile(
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" stcrw 0(%2)\n"
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" ipm %0\n"
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" srl %0,28\n"
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: "=d" (ccode), "=m" (*pcrw)
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: "a" (pcrw)
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: "cc" );
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return ccode;
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}
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#endif /* _ASM_S390_CRW_H */
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