drivers/scsi/mpt3sas/Kconfig

   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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  20 # CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
  21 # LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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  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.
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  41 # USA.
  42
  43 config 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
  51 config 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
  63 config 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.