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Copyright (c) 2006, Sun Microsystems, Inc., All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
sense_buf_len
req_descr_type
Copyright (c) 2006, Sun Microsystems, Inc., All Rights Reserved
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License.
You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
SCSI_FIND_SENSE_DESCR 9F "Jun 30, 2006"
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
illumos DDI specific (illumos 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.
Integer that contains the length of sense buffer in bytes.
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)