cregit-Linux how code gets into the kernel

Release 4.7 drivers/scsi/gdth_ioctl.h

Directory: drivers/scsi
#ifndef _GDTH_IOCTL_H

#define _GDTH_IOCTL_H

/* gdth_ioctl.h
 * $Id: gdth_ioctl.h,v 1.14 2004/02/19 15:43:15 achim Exp $
 */

/* IOCTLs */

#define GDTIOCTL_MASK       ('J'<<8)

#define GDTIOCTL_GENERAL    (GDTIOCTL_MASK | 0) 
/* general IOCTL */

#define GDTIOCTL_DRVERS     (GDTIOCTL_MASK | 1) 
/* get driver version */

#define GDTIOCTL_CTRTYPE    (GDTIOCTL_MASK | 2) 
/* get controller type */

#define GDTIOCTL_OSVERS     (GDTIOCTL_MASK | 3) 
/* get OS version */

#define GDTIOCTL_HDRLIST    (GDTIOCTL_MASK | 4) 
/* get host drive list */

#define GDTIOCTL_CTRCNT     (GDTIOCTL_MASK | 5) 
/* get controller count */

#define GDTIOCTL_LOCKDRV    (GDTIOCTL_MASK | 6) 
/* lock host drive */

#define GDTIOCTL_LOCKCHN    (GDTIOCTL_MASK | 7) 
/* lock channel */

#define GDTIOCTL_EVENT      (GDTIOCTL_MASK | 8) 
/* read controller events */

#define GDTIOCTL_SCSI       (GDTIOCTL_MASK | 9) 
/* SCSI command */

#define GDTIOCTL_RESET_BUS  (GDTIOCTL_MASK |10) 
/* reset SCSI bus */

#define GDTIOCTL_RESCAN     (GDTIOCTL_MASK |11) 
/* rescan host drives */

#define GDTIOCTL_RESET_DRV  (GDTIOCTL_MASK |12) 
/* reset (remote) drv. res. */


#define GDTIOCTL_MAGIC  0xaffe0004

#define EVENT_SIZE      294 

#define GDTH_MAXSG      32                      
/* max. s/g elements */


#define MAX_LDRIVES     255                     
/* max. log. drive count */
#ifdef GDTH_IOCTL_PROC

#define MAX_HDRIVES     100                     
/* max. host drive count */
#else

#define MAX_HDRIVES     MAX_LDRIVES             
/* max. host drive count */
#endif

/* scatter/gather element */
typedef struct {
    
u32     sg_ptr;                         /* address */
    
u32     sg_len;                         /* length */
} 
__attribute__((packed)) gdth_sg_str;

/* scatter/gather element - 64bit addresses */
typedef struct {
    
u64     sg_ptr;                         /* address */
    
u32     sg_len;                         /* length */
} 
__attribute__((packed)) gdth_sg64_str;

/* command structure */
typedef struct {
    
u32     BoardNode;                      /* board node (always 0) */
    
u32     CommandIndex;                   /* command number */
    
u16      OpCode;                         /* the command (READ,..) */
    union {
        struct {
            
u16      DeviceNo;               /* number of cache drive */
            
u32     BlockNo;                /* block number */
            
u32     BlockCnt;               /* block count */
            
u32     DestAddr;               /* dest. addr. (if s/g: -1) */
            
u32     sg_canz;                /* s/g element count */
            
gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
        } 
__attribute__((packed)) cache;                         /* cache service cmd. str. */
        struct {
            
u16      DeviceNo;               /* number of cache drive */
            
u64     BlockNo;                /* block number */
            
u32     BlockCnt;               /* block count */
            
u64     DestAddr;               /* dest. addr. (if s/g: -1) */
            
u32     sg_canz;                /* s/g element count */
            
gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
        } 
__attribute__((packed)) cache64;                       /* cache service cmd. str. */
        struct {
            
u16      param_size;             /* size of p_param buffer */
            
u32     subfunc;                /* IOCTL function */
            
u32     channel;                /* device */
            
u64     p_param;                /* buffer */
        } 
__attribute__((packed)) ioctl;                         /* IOCTL command structure */
        struct {
            
u16      reserved;
            union {
                struct {
                    
u32  msg_handle;        /* message handle */
                    
u64  msg_addr;          /* message buffer address */
                } 
__attribute__((packed)) msg;
                
u8       data[12];          /* buffer for rtc data, ... */
            } 
su;
        } 
__attribute__((packed)) screen;                        /* screen service cmd. str. */
        struct {
            
u16      reserved;
            
u32     direction;              /* data direction */
            
u32     mdisc_time;             /* disc. time (0: no timeout)*/
            
u32     mcon_time;              /* connect time(0: no to.) */
            
u32     sdata;                  /* dest. addr. (if s/g: -1) */
            
u32     sdlen;                  /* data length (bytes) */
            
u32     clen;                   /* SCSI cmd. length(6,10,12) */
            
u8      cmd[12];                /* SCSI command */
            
u8      target;                 /* target ID */
            
u8      lun;                    /* LUN */
            
u8      bus;                    /* SCSI bus number */
            
u8      priority;               /* only 0 used */
            
u32     sense_len;              /* sense data length */
            
u32     sense_data;             /* sense data addr. */
            
u32     link_p;                 /* linked cmds (not supp.) */
            
u32     sg_ranz;                /* s/g element count */
            
gdth_sg_str sg_lst[GDTH_MAXSG];     /* s/g list */
        } 
__attribute__((packed)) raw;                           /* raw service cmd. struct. */
        struct {
            
u16      reserved;
            
u32     direction;              /* data direction */
            
u32     mdisc_time;             /* disc. time (0: no timeout)*/
            
u32     mcon_time;              /* connect time(0: no to.) */
            
u64     sdata;                  /* dest. addr. (if s/g: -1) */
            
u32     sdlen;                  /* data length (bytes) */
            
u32     clen;                   /* SCSI cmd. length(6,..,16) */
            
u8      cmd[16];                /* SCSI command */
            
u8      target;                 /* target ID */
            
u8      lun;                    /* LUN */
            
u8      bus;                    /* SCSI bus number */
            
u8      priority;               /* only 0 used */
            
u32     sense_len;              /* sense data length */
            
u64     sense_data;             /* sense data addr. */
            
u32     sg_ranz;                /* s/g element count */
            
gdth_sg64_str sg_lst[GDTH_MAXSG];   /* s/g list */
        } 
__attribute__((packed)) raw64;                         /* raw service cmd. struct. */
    } 
u;
    /* additional variables */
    
u8      Service;                        /* controller service */
    
u8      reserved;
    
u16      Status;                         /* command result */
    
u32     Info;                           /* additional information */
    
void        *RequestBuffer;                 /* request buffer */
} 
__attribute__((packed)) gdth_cmd_str;

/* controller event structure */

#define ES_ASYNC    1

#define ES_DRIVER   2

#define ES_TEST     3

#define ES_SYNC     4
typedef struct {
    
u16                  size;               /* size of structure */
    union {
        
char                stream[16];
        struct {
            
u16          ionode;
            
u16          service;
            
u32         index;
        } 
__attribute__((packed)) driver;
        struct {
            
u16          ionode;
            
u16          service;
            
u16          status;
            
u32         info;
            
u8          scsi_coord[3];
        } 
__attribute__((packed)) async;
        struct {
            
u16          ionode;
            
u16          service;
            
u16          status;
            
u32         info;
            
u16          hostdrive;
            
u8          scsi_coord[3];
            
u8          sense_key;
        } 
__attribute__((packed)) sync;
        struct {
            



u32         l1, l2, l3, l4;
        } 
__attribute__((packed)) test;
    } 
eu;
    
u32                 severity;
    
u8                  event_string[256];          
} 
__attribute__((packed)) gdth_evt_data;

typedef struct {
    
u32         first_stamp;
    
u32         last_stamp;
    
u16          same_count;
    
u16          event_source;
    
u16          event_idx;
    
u8          application;
    
u8          reserved;
    
gdth_evt_data   event_data;
} 
__attribute__((packed)) gdth_evt_str;


#ifdef GDTH_IOCTL_PROC
/* IOCTL structure (write) */
typedef struct {
    
u32                 magic;              /* IOCTL magic */
    
u16                  ioctl;              /* IOCTL */
    
u16                  ionode;             /* controller number */
    
u16                  service;            /* controller service */
    
u16                  timeout;            /* timeout */
    union {
        struct {
            
u8          command[512];       /* controller command */
            
u8          data[1];            /* add. data */
        } 
general;
        struct {
            
u8          lock;               /* lock/unlock */
            
u8          drive_cnt;          /* drive count */
            
u16          drives[MAX_HDRIVES];/* drives */
        } 
lockdrv;
        struct {
            
u8          lock;               /* lock/unlock */
            
u8          channel;            /* channel */
        } 
lockchn;
        struct {
            
int             erase;              /* erase event ? */
            
int             handle;
            
u8          evt[EVENT_SIZE];    /* event structure */
        } 
event;
        struct {
            
u8          bus;                /* SCSI bus */
            
u8          target;             /* target ID */
            
u8          lun;                /* LUN */
            
u8          cmd_len;            /* command length */
            
u8          cmd[12];            /* SCSI command */
        } 
scsi;
        struct {
            
u16          hdr_no;             /* host drive number */
            
u8          flag;               /* old meth./add/remove */
        } 
rescan;
    } 
iu;
} 
gdth_iowr_str;

/* IOCTL structure (read) */
typedef struct {
    
u32                 size;               /* buffer size */
    
u32                 status;             /* IOCTL error code */
    union {
        struct {
            
u8          data[1];            /* data */
        } 
general;
        struct {
            
u16          version;            /* driver version */
        } 
drvers;
        struct {
            
u8          type;               /* controller type */
            
u16          info;               /* slot etc. */
            
u16          oem_id;             /* OEM ID */
            
u16          bios_ver;           /* not used */
            
u16          access;             /* not used */
            
u16          ext_type;           /* extended type */
            
u16          device_id;          /* device ID */
            
u16          sub_device_id;      /* sub device ID */
        } 
ctrtype;
        struct {
            
u8          version;            /* OS version */
            
u8          subversion;         /* OS subversion */
            
u16          revision;           /* revision */
        } 
osvers;
        struct {
            
u16          count;              /* controller count */
        } 
ctrcnt;
        struct {
            
int             handle;
            
u8          evt[EVENT_SIZE];    /* event structure */
        } 
event;
        struct {
            
u8          bus;                /* SCSI bus, 0xff: invalid */
            
u8          target;             /* target ID */
            
u8          lun;                /* LUN */
            
u8          cluster_type;       /* cluster properties */
        } 
hdr_list[MAX_HDRIVES];                /* index is host drive number */
    } 
iu;
} 
gdth_iord_str;
#endif

/* GDTIOCTL_GENERAL */
typedef struct {
    
u16 ionode;                              /* controller number */
    
u16 timeout;                             /* timeout */
    
u32 info;                               /* error info */ 
    
u16 status;                              /* status */
    
unsigned long data_len;                             /* data buffer size */
    
unsigned long sense_len;                            /* sense buffer size */
    
gdth_cmd_str command;                       /* command */                   
} 
gdth_ioctl_general;

/* GDTIOCTL_LOCKDRV */
typedef struct {
    
u16 ionode;                              /* controller number */
    
u8 lock;                                /* lock/unlock */
    
u8 drive_cnt;                           /* drive count */
    
u16 drives[MAX_HDRIVES];                 /* drives */
} 
gdth_ioctl_lockdrv;

/* GDTIOCTL_LOCKCHN */
typedef struct {
    
u16 ionode;                              /* controller number */
    
u8 lock;                                /* lock/unlock */
    
u8 channel;                             /* channel */
} 
gdth_ioctl_lockchn;

/* GDTIOCTL_OSVERS */
typedef struct {
    
u8 version;                             /* OS version */
    
u8 subversion;                          /* OS subversion */
    
u16 revision;                            /* revision */
} 
gdth_ioctl_osvers;

/* GDTIOCTL_CTRTYPE */
typedef struct {
    
u16 ionode;                              /* controller number */
    
u8 type;                                /* controller type */
    
u16 info;                                /* slot etc. */
    
u16 oem_id;                              /* OEM ID */
    
u16 bios_ver;                            /* not used */
    
u16 access;                              /* not used */
    
u16 ext_type;                            /* extended type */
    
u16 device_id;                           /* device ID */
    
u16 sub_device_id;                       /* sub device ID */
} 
gdth_ioctl_ctrtype;

/* GDTIOCTL_EVENT */
typedef struct {
    
u16 ionode;
    
int erase;                                  /* erase event? */
    
int handle;                                 /* event handle */
    
gdth_evt_str event;
} 
gdth_ioctl_event;

/* GDTIOCTL_RESCAN/GDTIOCTL_HDRLIST */
typedef struct {
    
u16 ionode;                              /* controller number */
    
u8 flag;                                /* add/remove */
    
u16 hdr_no;                              /* drive no. */
    struct {
        
u8 bus;                             /* SCSI bus */
        
u8 target;                          /* target ID */
        
u8 lun;                             /* LUN */
        
u8 cluster_type;                    /* cluster properties */
    } 
hdr_list[MAX_HDRIVES];                    /* index is host drive number */
} 
gdth_ioctl_rescan;

/* GDTIOCTL_RESET_BUS/GDTIOCTL_RESET_DRV */
typedef struct {
    
u16 ionode;                              /* controller number */
    
u16 number;                              /* bus/host drive number */
    
u16 status;                              /* status */
} 
gdth_ioctl_reset;

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
alan coxalan cox67254.68%116.67%
dave jonesdave jones25120.42%116.67%
pre-gitpre-git13811.23%116.67%
james bottomleyjames bottomley1028.30%116.67%
linus torvaldslinus torvalds665.37%233.33%
Total1229100.00%6100.00%
Directory: drivers/scsi
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