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 SCSI_VALIDATE_SENSE 9F "April 9, 2016"
 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
illumos DDI specific (illumos 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 committed 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)