SCSI_MODE_SENSE(9) SCSI mid layer SCSI_MODE_SENSE(9)NAME
scsi_mode_sense - issue a mode sense, falling back from 10 to six bytes if necessary.
SYNOPSIS
int scsi_mode_sense(struct scsi_device * sdev, int dbd, int modepage, unsigned char * buffer, int len, int timeout, int retries,
struct scsi_mode_data * data, struct scsi_sense_hdr * sshdr);
ARGUMENTS
sdev
SCSI device to be queried
dbd
set if mode sense will allow block descriptors to be returned
modepage
mode page being requested
buffer
request buffer (may not be smaller than eight bytes)
len
length of request buffer.
timeout
command timeout
retries
number of retries before failing
data
returns a structure abstracting the mode header data
sshdr
place to put sense data (or NULL if no sense to be collected). must be SCSI_SENSE_BUFFERSIZE big.
DESCRIPTION
Returns zero if unsuccessful, or the header offset (either 4 or 8 depending on whether a six or ten byte command was issued) if successful.
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 SCSI_MODE_SENSE(9)
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scsi_validate_sense(9F) Kernel Functions for Drivers scsi_validate_sense(9F)NAME
scsi_validate_sense - find descriptor in SCSI sense data
SYNOPSIS
#include <sys/scsi/scsi.h>
int scsi_validate_sense(uint8_t *sense_buffer, int sense_buf_len,
int *flags);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
sense_buffer Pointer to a buffer containing SCSI sense data. The sense data is expected in wire format starting at the response code.
sense_buf_len Length of sense buffer in bytes.
flags Returns additional properties of the sense data.
DESCRIPTION
The scsi_validate_sense() function returns the format of the sense data contained in the provided sense buffer. If the response code field
in the sense data is not recognized or if there is not enough sense data to include sense key, asc, and ascq then scsi_validate_sense()
returns SENSE_UNUSABLE. If the buffer contains usable sense data in fixed format, the function returns SENSE_FIXED_FORMAT. If the buffer
contains usable sense data in descriptor format, the function returns SENSE_DESCR_FORMAT.
The following flags may be set as appropriate depending on the sense data:
SNS_BUF_OVERFLOW The sense data buffer provided for the request is too small to hold all the sense data.
SNS_BUF_DEFERRED The sense data contained in the buffer relates to an error that has occurred during the processing of a successfully
completed command, such as a cached write that could not be commited to the media.
RETURN VALUES
SENSE_UNUSABLE The response code from the sense data is unrecognized or not enough sense data present to provide the sense key, asc,
and ascq.
SENSE_FIXED_FORMAT The sense data in the buffer is in "fixed format".
SENSE_DESCR_FORMAT The sense data in the buffer is in "descriptor format".
CONTEXT
The scsi_validate_sense() function can be called from user or interrupt context.
SEE ALSO scsi_ext_sense_fields(9F), scsi_find_sense_descr(9F), scsi_sense_asc(9F), scsi_sense_ascq(9F), scsi_sense_cmdspecific_uint64(9F),
scsi_sense_info_uint64(9F), scsi_sense_key(9F)SunOS 5.11 29 Jun 2006 scsi_validate_sense(9F)
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