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c84b06a48c
Modified the mpt3sas driver to have a single driver module which supports both SAS 2.0 & SAS 3.0 HBA devices. * Added SAS 2.0 HBA device IDs to the mpt3sas_pci_table pci table. * Created two separate SCSI host templates for SAS2 and SAS3 HBAs so that, during the driver load time driver can use corresponding host template(based the pci device ID) while registering a scsi host adapter instance for that pci device. * Registered two IOCTL devices, mpt2ctl is for SAS2 HBAs & mpt3ctl for SAS3 HBAs. Also updated the code to make sure that mpt2ctl device processes only those ioctl cmds issued for the SAS2 HBAs and mpt3ctl device processes only those ioctl cmds issued for the SAS3 HBAs. * Added separate indexing for SAS2 and SAS3 HBAs. * Replaced compile time check 'MPT2SAS_SCSI' to run time check 'hba_mpi_version_belonged' whereever needed. * Aliased this merged driver to mpt2sas using MODULE_ALIAS. * Moved global varaible 'driver_name' to per adapter instance variable. * Created two raid function template and used corresponding raid function templates based on the run time check 'hba_mpi_version_belonged'. * Moved mpt2sas_warpdrive.c file from mpt2sas to mpt3sas folder and renamed it as mpt3sas_warpdrive.c. * Also renamed the functions in mpt3sas_warpdrive.c file to follow current driver function name convention. * Updated the Makefile to build mpt3sas_warpdrive.o file for these WarpDrive-specific functions. * Also in function mpt3sas_setup_direct_io(), used sector_div() API instead of division operator (which gives compilation errors on 32 bit machines). * Removed mpt2sas files, mpt2sas directory & mpt3sas_module.c file. * Added module parameter 'hbas_to_enumerate' which permits using this merged driver as a legacy mpt2sas driver or as a legacy mpt3sas driver. Here are the available options for this module parameter: 0 - Merged driver which enumerates both SAS 2.0 & SAS 3.0 HBAs 1 - Acts as legacy mpt2sas driver, which enumerates only SAS 2.0 HBAs 2 - Acts as legacy mpt3sas driver, which enumerates only SAS 3.0 HBAs * Removed mpt2sas entries from SCSI's Kconfig and Makefile files. Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
74 lines
3.2 KiB
Plaintext
74 lines
3.2 KiB
Plaintext
#
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# Kernel configuration file for the MPT3SAS
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#
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# This code is based on drivers/scsi/mpt3sas/Kconfig
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# Copyright (C) 2012-2014 LSI Corporation
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# (mailto:DL-MPTFusionLinux@lsi.com)
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# NO WARRANTY
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# THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
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# CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
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# LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
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# MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
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# solely responsible for determining the appropriateness of using and
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# distributing the Program and assumes all risks associated with its
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# exercise of rights under this Agreement, including but not limited to
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# the risks and costs of program errors, damage to or loss of data,
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# programs or equipment, and unavailability or interruption of operations.
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# DISCLAIMER OF LIABILITY
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# NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
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# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
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# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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# USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
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# HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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# USA.
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config SCSI_MPT3SAS
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tristate "LSI MPT Fusion SAS 3.0 & SAS 2.0 Device Driver"
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depends on PCI && SCSI
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select SCSI_SAS_ATTRS
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select RAID_ATTRS
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---help---
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This driver supports PCI-Express SAS 12Gb/s Host Adapters.
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config SCSI_MPT2SAS_MAX_SGE
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int "LSI MPT Fusion SAS 2.0 Max number of SG Entries (16 - 256)"
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depends on PCI && SCSI && SCSI_MPT3SAS
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default "128"
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range 16 256
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---help---
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This option allows you to specify the maximum number of scatter-
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gather entries per I/O. The driver default is 128, which matches
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MAX_PHYS_SEGMENTS in most kernels. However in SuSE kernels this
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can be 256. However, it may decreased down to 16. Decreasing this
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parameter will reduce memory requirements on a per controller instance.
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config SCSI_MPT3SAS_MAX_SGE
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int "LSI MPT Fusion SAS 3.0 Max number of SG Entries (16 - 256)"
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depends on PCI && SCSI && SCSI_MPT3SAS
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default "128"
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range 16 256
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---help---
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This option allows you to specify the maximum number of scatter-
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gather entries per I/O. The driver default is 128, which matches
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MAX_PHYS_SEGMENTS in most kernels. However in SuSE kernels this
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can be 256. However, it may decreased down to 16. Decreasing this
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parameter will reduce memory requirements on a per controller instance.
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