xref: /openbmc/linux/drivers/scsi/mpt3sas/Kconfig (revision ba61bb17)
1#
2# Kernel configuration file for the MPT3SAS
3#
4# This code is based on drivers/scsi/mpt3sas/Kconfig
5# Copyright (C) 2012-2014  LSI Corporation
6#  (mailto:DL-MPTFusionLinux@lsi.com)
7
8# This program is free software; you can redistribute it and/or
9# modify it under the terms of the GNU General Public License
10# as published by the Free Software Foundation; either version 2
11# of the License, or (at your option) any later version.
12
13# This program is distributed in the hope that it will be useful,
14# but WITHOUT ANY WARRANTY; without even the implied warranty of
15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16# GNU General Public License for more details.
17
18# NO WARRANTY
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21# LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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23# solely responsible for determining the appropriateness of using and
24# distributing the Program and assumes all risks associated with its
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27# programs or equipment, and unavailability or interruption of operations.
28
29# DISCLAIMER OF LIABILITY
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40# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
41# USA.
42
43config SCSI_MPT3SAS
44	tristate "LSI MPT Fusion SAS 3.0 & SAS 2.0 Device Driver"
45	depends on PCI && SCSI
46	select SCSI_SAS_ATTRS
47	select RAID_ATTRS
48	---help---
49	This driver supports PCI-Express SAS 12Gb/s Host Adapters.
50
51config SCSI_MPT2SAS_MAX_SGE
52	int "LSI MPT Fusion SAS 2.0 Max number of SG Entries (16 - 256)"
53	depends on PCI && SCSI && SCSI_MPT3SAS
54	default "128"
55	range 16 256
56	---help---
57	This option allows you to specify the maximum number of scatter-
58	gather entries per I/O. The driver default is 128, which matches
59	MAX_PHYS_SEGMENTS in most kernels.  However in SuSE kernels this
60	can be 256. However, it may decreased down to 16.  Decreasing this
61	parameter will reduce memory requirements on a per controller instance.
62
63config SCSI_MPT3SAS_MAX_SGE
64	int "LSI MPT Fusion SAS 3.0 Max number of SG Entries (16 - 256)"
65	depends on PCI && SCSI && SCSI_MPT3SAS
66	default "128"
67	range 16 256
68	---help---
69	This option allows you to specify the maximum number of scatter-
70	gather entries per I/O. The driver default is 128, which matches
71	MAX_PHYS_SEGMENTS in most kernels.  However in SuSE kernels this
72	can be 256. However, it may decreased down to 16.  Decreasing this
73	parameter will reduce memory requirements on a per controller instance.
74
75config SCSI_MPT2SAS
76	tristate "Legacy MPT2SAS config option"
77	default n
78	select SCSI_MPT3SAS
79	depends on PCI && SCSI
80	---help---
81	Dummy config option for backwards compatiblity: configure the MPT3SAS
82	driver instead.
83