21b2f0c803
We currently have two implementations of this obsolete ioctl, one in the block layer and one in the scsi code. Both of them have drawbacks. This patch kills the scsi layer version after updating the block version with the missing bits: - argument checking - use scatterlist I/O - set number of retries based on the submitted command This is the last user of non-S/G I/O except for the gdth driver, so getting this in ASAP and through the scsi tree would be nie to kill the non-S/G I/O path. Jens, what do you think about adding a check for non-S/G I/O in the midlayer? Thanks to Or Gerlitz for testing this patch. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#ifndef _SCSI_IOCTL_H
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#define _SCSI_IOCTL_H
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#define SCSI_IOCTL_SEND_COMMAND 1
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#define SCSI_IOCTL_TEST_UNIT_READY 2
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#define SCSI_IOCTL_BENCHMARK_COMMAND 3
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#define SCSI_IOCTL_SYNC 4 /* Request synchronous parameters */
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#define SCSI_IOCTL_START_UNIT 5
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#define SCSI_IOCTL_STOP_UNIT 6
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/* The door lock/unlock constants are compatible with Sun constants for
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the cdrom */
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#define SCSI_IOCTL_DOORLOCK 0x5380 /* lock the eject mechanism */
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#define SCSI_IOCTL_DOORUNLOCK 0x5381 /* unlock the mechanism */
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#define SCSI_REMOVAL_PREVENT 1
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#define SCSI_REMOVAL_ALLOW 0
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#ifdef __KERNEL__
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struct scsi_device;
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/*
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* Structures used for scsi_ioctl et al.
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*/
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typedef struct scsi_ioctl_command {
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unsigned int inlen;
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unsigned int outlen;
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unsigned char data[0];
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} Scsi_Ioctl_Command;
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typedef struct scsi_idlun {
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__u32 dev_id;
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__u32 host_unique_id;
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} Scsi_Idlun;
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/* Fibre Channel WWN, port_id struct */
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typedef struct scsi_fctargaddress {
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__u32 host_port_id;
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unsigned char host_wwn[8]; // include NULL term.
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} Scsi_FCTargAddress;
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extern int scsi_ioctl(struct scsi_device *, int, void __user *);
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extern int scsi_nonblockable_ioctl(struct scsi_device *sdev, int cmd,
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void __user *arg, struct file *filp);
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#endif /* __KERNEL__ */
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#endif /* _SCSI_IOCTL_H */
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