SYNOPSIS

To compile this driver into your kernel, place the following lines in your kernel configuration file:

device scbus device mps

Or, to load the driver as a module at boot, place the following line in loader.conf5:

mps_load="YES"

DESCRIPTION

The driver provides support for LSI Logic Fusion-MPT 2 SAS controllers and WarpDrive solid state storage cards.

HARDWARE

The driver supports the following hardware:

• LSI Logic SAS2004 (4 Port SAS
• LSI Logic SAS2008 (8 Port SAS
• LSI Logic SAS2108 (8 Port SAS
• LSI Logic SAS2116 (16 Port SAS
• LSI Logic SAS2208 (8 Port SAS
• LSI Logic SAS2308 (8 Port SAS
• LSI Logic SSS6200 Solid State Storage
• Intel Integrated RAID Module RMS25JB040
• Intel Integrated RAID Module RMS25JB080
• Intel Integrated RAID Module RMS25KB040
• Intel Integrated RAID Module RMS25KB080

CONFIGURATION

To disable MSI interrupts for all driver instances, set the following tunable value in loader.conf5:

hw.mps.disable_msi=1

To disable MSI interrupts for a specific driver instance, set the following tunable value in loader.conf5:

dev.mps.X.disable_msi=1

where X is the adapter number.

To disable MSI-X interrupts for all driver instances, set the following tunable value in loader.conf5:

hw.mps.disable_msix=1

To disable MSI-X interrupts for a specific driver instance, set the following tunable value in loader.conf5:

dev.mps.X.disable_msix=1

To set the maximum number of DMA chains allocated for all adapters, set the following variable in loader.conf5:

hw.mps.max_chains=NNNN

To set the maximum number of DMA chains allocated for a specific adapter, set the following variable in loader.conf5:

dev.mps.X.max_chains=NNNN

This variable may also be viewed via sysctl(8) to see the maximum set for a given adapter.

The current number of free chain frames may be seen via the dev.mps.X.chain_free sysctl(8) variable.

The lowest number of free chain frames may be seen via the dev.mps.X.chain_free_lowwater sysctl(8) variable.

The current number of active I/O commands is shown in the dev.mps.X.io_cmds_active sysctl(8) variable.

The maximum number of active I/O command seen since boot is shown in the dev.mps.X.io_cmds_highwater sysctl(8) variable.

DEBUGGING

To enable debugging prints from the driver, set the

hw.mps.X.debug_level

variable, where X is the adapter number, either in loader.conf5 or via sysctl(8). The following bits have the described effects:

0x01

Enable informational prints.

0x02

Enable tracing prints.

0x04

Enable prints for driver faults.

0x08

Enable prints for controller events.

HISTORY

The driver first appeared in Fx 9.0 .

AUTHORS

An -nosplit The driver was originally written by An Scott Long Aq [email protected] . It has been improved and tested by LSI Logic Corporation. This man page was written by An Ken Merry Aq [email protected] .