SCSI_SENSE_DESC_FIND(9) SCSI mid layer SCSI_SENSE_DESC_FIND(9)NAME
scsi_sense_desc_find - search for a given descriptor type in descriptor sense data format.
SYNOPSIS
const u8 * scsi_sense_desc_find(const u8 * sense_buffer, int sb_len, int desc_type);
ARGUMENTS
sense_buffer
byte array of descriptor format sense data
sb_len
number of valid bytes in sense_buffer
desc_type
value of descriptor type to find (e.g. 0 -> information)
NOTES
only valid when sense data is in descriptor format
RETURN VALUE
pointer to start of (first) descriptor if found else NULL
AUTHORS
James Bottomley <James.Bottomley@hansenpartnership.com>
Author.
Rob Landley <rob@landley.net>
Author.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 SCSI_SENSE_DESC_FIND(9)
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scsi_find_sense_descr(9F) Kernel Functions for Drivers scsi_find_sense_descr(9F)NAME
scsi_find_sense_descr - find descriptor in SCSI sense data
SYNOPSIS
#include <sys/scsi/scsi.h>
uint8_t *scsi_find_sense_descr(uint8_t *sense_buffer, int sense_buf_len,
int req_descr_type);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI).
PARAMETERS
sense_buffer Pointer to a buffer containing SCSI descriptor sense data. The data is expected in wire format starting at the response
code.
sense_buf_len Integer that contains the length of sense buffer in bytes.
req_descr_type Integer that contains the descriptor type value for the desired sense descriptor.
DESCRIPTION
The scsi_find_sense_descr() function is used to obtain a pointer to a specific descriptor type, specified by req_descr_type, within a
descriptor sense buffer. Before returning the pointer, scsi_find_sense_descr() verifies that the entire descriptor is present based on the
length provided in sense_buf_len.
Any value for req_descr_type can be requested. The following descriptor types are already defined:
#define DESCR_INFORMATION 0x00
#define DESCR_COMMAND_SPECIFIC 0x01
#define DESCR_SENSE_KEY_SPECIFIC 0x02
#define DESCR_FRU 0x03
#define DESCR_STREAM_COMMANDS 0x04
#define DESCR_BLOCK_COMMANDS 0x05
#define DESCR_OSD_OID 0x06
#define DESCR_OSD_RESP_INTEGRITY 0x07
#define DESCR_OSD_ATTR_ID 0x08
Drivers should use scsi_validate_sense(9F) to ensure that the sense buffer contains valid descriptor sense data.
RETURN VALUES
The scsi_find_sense_descr() function returns a pointer to a sense descriptor of the requested type if a descriptor of that type exists. If
no such descriptor exists, scsi_find_sense_descr() returns NULL.
CONTEXT
The scsi_find_sense_descr() function can be called from user or interrupt context.
SEE ALSO scsi_ext_sense_fields(9F), scsi_sense_asc(9F), scsi_sense_ascq(9F), scsi_sense_cmdspecific_uint64(9F), scsi_sense_info_uint64(9F),
scsi_sense_key(9F), scsi_validate_sense(9F)SunOS 5.11 30 Jun 2006 scsi_find_sense_descr(9F)
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