linux/drivers/scsi/libsas/Kconfig
Christoph Hellwig 651a013649 scsi: scsi_transport_sas: switch to bsg-lib for SMP passthrough
Simplify the SMP passthrough code by switching it to the generic bsg-lib
helpers that abstract away the details of the request code, and gets
drivers out of seeing struct scsi_request.

For the libsas host SMP code there is a small behavior difference in
that we now always clear the residual len for successful commands,
similar to the three other SMP handler implementations.  Given that
there is no partial command handling in the host SMP handler this should
not matter in practice.

[mkp: typos and checkpatch fixes]

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2017-08-29 21:51:45 -04:00

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#
# Kernel configuration file for the SAS Class
#
# Copyright (C) 2005 Adaptec, Inc. All rights reserved.
# Copyright (C) 2005 Luben Tuikov <luben_tuikov@adaptec.com>
#
# This file is licensed under GPLv2.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; version 2 of the
# License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
#
config SCSI_SAS_LIBSAS
tristate "SAS Domain Transport Attributes"
depends on SCSI
select SCSI_SAS_ATTRS
select BLK_DEV_BSGLIB
help
This provides transport specific helpers for SAS drivers which
use the domain device construct (like the aic94xxx).
config SCSI_SAS_ATA
bool "ATA support for libsas (requires libata)"
depends on SCSI_SAS_LIBSAS
depends on ATA = y || ATA = SCSI_SAS_LIBSAS
help
Builds in ATA support into libsas. Will necessitate
the loading of libata along with libsas.
config SCSI_SAS_HOST_SMP
bool "Support for SMP interpretation for SAS hosts"
default y
depends on SCSI_SAS_LIBSAS
help
Allows sas hosts to receive SMP frames. Selecting this
option builds an SMP interpreter into libsas. Say
N here if you want to save the few kb this consumes.