?? irq.h
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#ifndef _ASM_IRQ_H#define _ASM_IRQ_H#include <linux/config.h>#ifdef __KERNEL__#include <asm/hardirq.h>/* * How many IRQ's for S390 ?!? */#define __MAX_SUBCHANNELS 65536#define NR_IRQS __MAX_SUBCHANNELS#define LPM_ANYPATH 0xff /* doesn't really belong here, Ingo? */#define INVALID_STORAGE_AREA ((void *)(-1 - 0x3FFF ))extern int disable_irq(unsigned int);extern int enable_irq(unsigned int);/* * path management control word */typedef struct { __u32 intparm; /* interruption parameter */ __u32 qf : 1; /* qdio facility */ __u32 res0 : 1; /* reserved zeros */ __u32 isc : 3; /* interruption sublass */ __u32 res5 : 3; /* reserved zeros */ __u32 ena : 1; /* enabled */ __u32 lm : 2; /* limit mode */ __u32 mme : 2; /* measurement-mode enable */ __u32 mp : 1; /* multipath mode */ __u32 tf : 1; /* timing facility */ __u32 dnv : 1; /* device number valid */ __u32 dev : 16; /* device number */ __u8 lpm; /* logical path mask */ __u8 pnom; /* path not operational mask */ __u8 lpum; /* last path used mask */ __u8 pim; /* path installed mask */ __u16 mbi; /* measurement-block index */ __u8 pom; /* path operational mask */ __u8 pam; /* path available mask */ __u8 chpid[8]; /* CHPID 0-7 (if available) */ __u32 unused1 : 8; /* reserved zeros */ __u32 st : 3; /* subchannel type */ __u32 unused2 : 20; /* reserved zeros */ __u32 csense : 1; /* concurrent sense; can be enabled ...*/ /* ... per MSCH, however, if facility */ /* ... is not installed, this results */ /* ... in an operand exception. */ } __attribute__ ((packed)) pmcw_t;#endif /* __KERNEL__ *//* * subchannel status word */typedef struct { __u32 key : 4; /* subchannel key */ __u32 sctl : 1; /* suspend control */ __u32 eswf : 1; /* ESW format */ __u32 cc : 2; /* deferred condition code */ __u32 fmt : 1; /* format */ __u32 pfch : 1; /* prefetch */ __u32 isic : 1; /* initial-status interruption control */ __u32 alcc : 1; /* address-limit checking control */ __u32 ssi : 1; /* supress-suspended interruption */ __u32 zcc : 1; /* zero condition code */ __u32 ectl : 1; /* extended control */ __u32 pno : 1; /* path not operational */ __u32 res : 1; /* reserved */ __u32 fctl : 3; /* function control */ __u32 actl : 7; /* activity control */ __u32 stctl : 5; /* status control */ __u32 cpa; /* channel program address */ __u32 dstat : 8; /* device status */ __u32 cstat : 8; /* subchannel status */ __u32 count : 16; /* residual count */ } __attribute__ ((packed)) scsw_t;#define SCSW_FCTL_CLEAR_FUNC 0x1#define SCSW_FCTL_HALT_FUNC 0x2#define SCSW_FCTL_START_FUNC 0x4#define SCSW_ACTL_SUSPENDED 0x1#define SCSW_ACTL_DEVACT 0x2#define SCSW_ACTL_SCHACT 0x4#define SCSW_ACTL_CLEAR_PEND 0x8#define SCSW_ACTL_HALT_PEND 0x10#define SCSW_ACTL_START_PEND 0x20#define SCSW_ACTL_RESUME_PEND 0x40#define SCSW_STCTL_STATUS_PEND 0x1#define SCSW_STCTL_SEC_STATUS 0x2#define SCSW_STCTL_PRIM_STATUS 0x4#define SCSW_STCTL_INTER_STATUS 0x8#define SCSW_STCTL_ALERT_STATUS 0x10#define DEV_STAT_ATTENTION 0x80#define DEV_STAT_STAT_MOD 0x40#define DEV_STAT_CU_END 0x20#define DEV_STAT_BUSY 0x10#define DEV_STAT_CHN_END 0x08#define DEV_STAT_DEV_END 0x04#define DEV_STAT_UNIT_CHECK 0x02#define DEV_STAT_UNIT_EXCEP 0x01#define SCHN_STAT_PCI 0x80#define SCHN_STAT_INCORR_LEN 0x40#define SCHN_STAT_PROG_CHECK 0x20#define SCHN_STAT_PROT_CHECK 0x10#define SCHN_STAT_CHN_DATA_CHK 0x08#define SCHN_STAT_CHN_CTRL_CHK 0x04#define SCHN_STAT_INTF_CTRL_CHK 0x02#define SCHN_STAT_CHAIN_CHECK 0x01/* * architectured values for first sense byte */#define SNS0_CMD_REJECT 0x80#define SNS_CMD_REJECT SNS0_CMD_REJECT#define SNS0_INTERVENTION_REQ 0x40#define SNS0_BUS_OUT_CHECK 0x20#define SNS0_EQUIPMENT_CHECK 0x10#define SNS0_DATA_CHECK 0x08#define SNS0_OVERRUN 0x04/* 0x02 reserved */#define SNS0_INCOMPL_DOMAIN 0x01/* * architectured values for second sense byte */#define SNS1_PERM_ERR 0x80#define SNS1_INV_TRACK_FORMAT 0x40#define SNS1_EOC 0x20#define SNS1_MESSAGE_TO_OPER 0x10#define SNS1_NO_REC_FOUND 0x08#define SNS1_FILE_PROTECTED 0x04#define SNS1_WRITE_INHIBITED 0x02#define SNS1_INPRECISE_END 0x01/* * architectured values for third sense byte */#define SNS2_REQ_INH_WRITE 0x80#define SNS2_CORRECTABLE 0x40#define SNS2_FIRST_LOG_ERR 0x20#define SNS2_ENV_DATA_PRESENT 0x10/* 0x08 reserved */#define SNS2_INPRECISE_END 0x04/* 0x02 reserved *//* 0x01 reserved */#ifdef __KERNEL__/* * subchannel information block */typedef struct { pmcw_t pmcw; /* path management control word */ scsw_t scsw; /* subchannel status word */ __u8 mda[12]; /* model dependent area */ } __attribute__ ((packed,aligned(4))) schib_t;#endif /* __KERNEL__ */typedef struct { __u8 cmd_code;/* command code */ __u8 flags; /* flags, like IDA adressing, etc. */ __u16 count; /* byte count */ __u32 cda; /* data address */ } __attribute__ ((packed,aligned(8))) ccw1_t;#define CCW_FLAG_DC 0x80#define CCW_FLAG_CC 0x40#define CCW_FLAG_SLI 0x20#define CCW_FLAG_SKIP 0x10#define CCW_FLAG_PCI 0x08#define CCW_FLAG_IDA 0x04#define CCW_FLAG_SUSPEND 0x02#define CCW_CMD_READ_IPL 0x02#define CCW_CMD_NOOP 0x03#define CCW_CMD_BASIC_SENSE 0x04#define CCW_CMD_TIC 0x08#define CCW_CMD_SENSE_PGID 0x34#define CCW_CMD_SUSPEND_RECONN 0x5B#define CCW_CMD_RDC 0x64#define CCW_CMD_SET_PGID 0xAF#define CCW_CMD_SENSE_ID 0xE4#define CCW_CMD_DCTL 0xF3#ifdef __KERNEL__#define SENSE_MAX_COUNT 0x20/* * architectured values for first sense byte */#define SNS0_CMD_REJECT 0x80#define SNS_CMD_REJECT SNS0_CMD_REJECT#define SNS0_INTERVENTION_REQ 0x40#define SNS0_BUS_OUT_CHECK 0x20#define SNS0_EQUIPMENT_CHECK 0x10#define SNS0_DATA_CHECK 0x08#define SNS0_OVERRUN 0x04/* * operation request block */typedef struct { __u32 intparm; /* interruption parameter */ __u32 key : 4; /* flags, like key, suspend control, etc. */ __u32 spnd : 1; /* suspend control */ __u32 res1 : 1; /* reserved */ __u32 mod : 1; /* modification control */ __u32 sync : 1; /* synchronize control */ __u32 fmt : 1; /* format control */ __u32 pfch : 1; /* prefetch control */ __u32 isic : 1; /* initial-status-interruption control */ __u32 alcc : 1; /* address-limit-checking control */ __u32 ssic : 1; /* suppress-suspended-interr. control */ __u32 res2 : 1; /* reserved */ __u32 c64 : 1; /* IDAW/QDIO 64 bit control */ __u32 i2k : 1; /* IDAW 2/4kB block size control */ __u32 lpm : 8; /* logical path mask */ __u32 ils : 1; /* incorrect length */ __u32 zero : 6; /* reserved zeros */ __u32 orbx : 1; /* ORB extension control */ __u32 cpa; /* channel program address */ } __attribute__ ((packed,aligned(4))) orb_t;#endif /* __KERNEL__ */typedef struct { __u32 res0 : 4; /* reserved */ __u32 pvrf : 1; /* path-verification-required flag */ __u32 cpt : 1; /* channel-path timeout */ __u32 fsavf : 1; /* Failing storage address validity flag */ __u32 cons : 1; /* concurrent-sense */ __u32 res8 : 2; /* reserved */ __u32 scnt : 6; /* sense count if cons == 1 */ __u32 res16 : 16; /* reserved */ } __attribute__ ((packed)) erw_t;/* * subchannel logout area */typedef struct { __u32 res0 : 1; /* reserved */ __u32 esf : 7; /* extended status flags */ __u32 lpum : 8; /* last path used mask */ __u32 res16 : 1; /* reserved */ __u32 fvf : 5; /* field-validity flags */ __u32 sacc : 2; /* storage access code */ __u32 termc : 2; /* termination code */ __u32 devsc : 1; /* device-status check */ __u32 serr : 1; /* secondary error */ __u32 ioerr : 1; /* i/o-error alert */ __u32 seqc : 3; /* sequence code */ } __attribute__ ((packed)) sublog_t ;/* * Format 0 Extended Status Word (ESW) */typedef struct { sublog_t sublog; /* subchannel logout */ erw_t erw; /* extended report word */ __u32 faddr; /* failing address */ __u32 zeros[2]; /* 2 fullwords of zeros */ } __attribute__ ((packed)) esw0_t;/* * Format 1 Extended Status Word (ESW) */typedef struct { __u8 zero0; /* reserved zeros */ __u8 lpum; /* last path used mask */ __u16 zero16; /* reserved zeros */ erw_t erw; /* extended report word */ __u32 zeros[3]; /* 2 fullwords of zeros */ } __attribute__ ((packed)) esw1_t;/* * Format 2 Extended Status Word (ESW) */typedef struct { __u8 zero0; /* reserved zeros */ __u8 lpum; /* last path used mask */ __u16 dcti; /* device-connect-time interval */ erw_t erw; /* extended report word */ __u32 zeros[3]; /* 2 fullwords of zeros */ } __attribute__ ((packed)) esw2_t;/* * Format 3 Extended Status Word (ESW) */typedef struct { __u8 zero0; /* reserved zeros */ __u8 lpum; /* last path used mask */ __u16 res; /* reserved */ erw_t erw; /* extended report word */ __u32 zeros[3]; /* 2 fullwords of zeros */ } __attribute__ ((packed)) esw3_t;typedef union { esw0_t esw0; esw1_t esw1; esw2_t esw2; esw3_t esw3; } __attribute__ ((packed)) esw_t;/* * interruption response block */typedef struct { scsw_t scsw; /* subchannel status word */ esw_t esw; /* extended status word */ __u8 ecw[32]; /* extended control word */ } __attribute__ ((packed,aligned(4))) irb_t;#ifdef __KERNEL__/* * TPI info structure */typedef struct { __u32 reserved1 : 16; /* reserved 0x00000001 */ __u32 irq : 16; /* aka. subchannel number */ __u32 intparm; /* interruption parameter */ __u32 adapter_IO : 1; __u32 reserved2 : 1; __u32 isc : 3; __u32 reserved3 : 12; __u32 int_type : 3; __u32 reserved4 : 12; } __attribute__ ((packed)) tpi_info_t;//// command information word (CIW) layout//typedef struct _ciw { __u32 et : 2; // entry type __u32 reserved : 2; // reserved __u32 ct : 4; // command type __u32 cmd : 8; // command __u32 count : 16; // count } __attribute__ ((packed)) ciw_t;#define CIW_TYPE_RCD 0x0 // read configuration data#define CIW_TYPE_SII 0x1 // set interface identifier#define CIW_TYPE_RNI 0x2 // read node identifier#define MAX_CIWS 8//// sense-id response buffer layout//typedef struct { /* common part */ __u8 reserved; /* always 0x'FF' */ __u16 cu_type; /* control unit type */ __u8 cu_model; /* control unit model */ __u16 dev_type; /* device type */ __u8 dev_model; /* device model */ __u8 unused; /* padding byte */ /* extended part */ ciw_t ciw[MAX_CIWS]; /* variable # of CIWs */ } __attribute__ ((packed,aligned(4))) senseid_t;#endif /* __KERNEL__ *//* * sense data */typedef struct { __u8 res[32]; /* reserved */ __u8 data[32]; /* sense data */ } __attribute__ ((packed)) sense_t;/* * device status area, to be provided by the device driver * when calling request_irq() as parameter "dev_id", later * tied to the "action" control block. * * Note : No data area must be added after union ii or the * effective devstat size calculation will fail ! */typedef struct { __u16 devno; /* device number, aka. "cuu" from irb */ unsigned long intparm; /* interrupt parameter */ __u8 cstat; /* channel status - accumulated */ __u8 dstat; /* device status - accumulated */ __u8 lpum; /* last path used mask from irb */ __u8 unused; /* not used - reserved */ unsigned int flag; /* flag : see below */ __u32 cpa; /* CCW address from irb at primary status */ __u32 rescnt; /* res. count from irb at primary status */ __u32 scnt; /* sense count, if DEVSTAT_FLAG_SENSE_AVAIL */ union { irb_t irb; /* interruption response block */ sense_t sense; /* sense information */ } ii; /* interrupt information */ } devstat_t;#define DEVSTAT_FLAG_SENSE_AVAIL 0x00000001#define DEVSTAT_NOT_OPER 0x00000002#define DEVSTAT_START_FUNCTION 0x00000004#define DEVSTAT_HALT_FUNCTION 0x00000008#define DEVSTAT_STATUS_PENDING 0x00000010#define DEVSTAT_REVALIDATE 0x00000020#define DEVSTAT_DEVICE_GONE 0x00000040#define DEVSTAT_DEVICE_OWNED 0x00000080#define DEVSTAT_CLEAR_FUNCTION 0x00000100#define DEVSTAT_PCI 0x00000200#define DEVSTAT_SUSPENDED 0x00000400#define DEVSTAT_UNKNOWN_DEV 0x00000800#define DEVSTAT_FINAL_STATUS 0x80000000#define DEVINFO_NOT_OPER DEVSTAT_NOT_OPER#define DEVINFO_UNKNOWN_DEV DEVSTAT_UNKNOWN_DEV#define DEVINFO_DEVICE_OWNED DEVSTAT_DEVICE_OWNED#define DEVINFO_QDIO_CAPABLE 0x40000000#define INTPARM_STATUS_PENDING 0xFFFFFFFF#ifdef __KERNEL__#define IO_INTERRUPT_TYPE 0 /* I/O interrupt type */typedef void (* io_handler_func1_t) ( int irq, devstat_t *devstat, struct pt_regs *rgs);typedef void (* io_handler_func_t) ( int irq, void *devstat, struct pt_regs *rgs);typedef void ( * not_oper_handler_func_t)( int irq, int status );typedef int (* adapter_int_handler_t)( __u32 intparm );typedef struct { io_handler_func_t handler; /* interrupt handler routine */ const char *name; /* device name */ devstat_t *dev_id; /* device status block */ } irq_desc_t;typedef struct { __u8 state1 : 2; /* path state value 1 */ __u8 state2 : 2; /* path state value 2 */ __u8 state3 : 1; /* path state value 3 */ __u8 resvd : 3; /* reserved */ } __attribute__ ((packed)) path_state_t;typedef struct { union {?? 快捷鍵說明
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