mirror of
https://github.com/torvalds/linux.git
synced 2024-12-11 21:52:04 +00:00
906d15fbd2
The calling conventions for this function are bad as it could return -ENODEV both for a device not currently online and a not recognized ioctl. Add a new scsi_ioctl_block_when_processing_errors function that wraps scsi_block_when_processing_errors with the a special case for the SG_SCSI_RESET ioctl command, and handle the SG_SCSI_RESET case itself in scsi_ioctl. All callers of scsi_ioctl now must call the above helper to check for the EH state, so that the ioctl handler itself doesn't have to. Reported-by: Robert Elliott <Elliott@hp.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Hannes Reinecke <hare@suse.de>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#ifndef _SCSI_IOCTL_H
|
|
#define _SCSI_IOCTL_H
|
|
|
|
#define SCSI_IOCTL_SEND_COMMAND 1
|
|
#define SCSI_IOCTL_TEST_UNIT_READY 2
|
|
#define SCSI_IOCTL_BENCHMARK_COMMAND 3
|
|
#define SCSI_IOCTL_SYNC 4 /* Request synchronous parameters */
|
|
#define SCSI_IOCTL_START_UNIT 5
|
|
#define SCSI_IOCTL_STOP_UNIT 6
|
|
/* The door lock/unlock constants are compatible with Sun constants for
|
|
the cdrom */
|
|
#define SCSI_IOCTL_DOORLOCK 0x5380 /* lock the eject mechanism */
|
|
#define SCSI_IOCTL_DOORUNLOCK 0x5381 /* unlock the mechanism */
|
|
|
|
#define SCSI_REMOVAL_PREVENT 1
|
|
#define SCSI_REMOVAL_ALLOW 0
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct scsi_device;
|
|
|
|
/*
|
|
* Structures used for scsi_ioctl et al.
|
|
*/
|
|
|
|
typedef struct scsi_ioctl_command {
|
|
unsigned int inlen;
|
|
unsigned int outlen;
|
|
unsigned char data[0];
|
|
} Scsi_Ioctl_Command;
|
|
|
|
typedef struct scsi_idlun {
|
|
__u32 dev_id;
|
|
__u32 host_unique_id;
|
|
} Scsi_Idlun;
|
|
|
|
/* Fibre Channel WWN, port_id struct */
|
|
typedef struct scsi_fctargaddress {
|
|
__u32 host_port_id;
|
|
unsigned char host_wwn[8]; // include NULL term.
|
|
} Scsi_FCTargAddress;
|
|
|
|
int scsi_ioctl_block_when_processing_errors(struct scsi_device *sdev,
|
|
int cmd, bool ndelay);
|
|
extern int scsi_ioctl(struct scsi_device *, int, void __user *);
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _SCSI_IOCTL_H */
|