Skip site navigation (1)Skip section navigation (2)

FreeBSD Man Pages

Man Page or Keyword Search:
Man Architecture
Apropos Keyword Search (all sections) Output format
home | help
MPS(4)                 FreeBSD Kernel Interfaces Manual                 MPS(4)

NAME
     mps - LSI Fusion-MPT 2 Serial Attached SCSI driver

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.conf(5):

           mps_load="YES"

DESCRIPTION
     The mps driver provides support for LSI Logic Fusion-MPT 2 SAS
     controllers.

HARDWARE
     The mps driver supports the following controllers:

     +o   LSI Logic SAS2004 (4 Port SAS)
     +o   LSI Logic SAS2008 (8 Port SAS)
     +o   LSI Logic SAS2108 (8 Port SAS)
     +o   LSI Logic SAS2116 (16 Port SAS)
     +o   LSI Logic SAS2208 (8 Port SAS)

CONFIGURATION
     To disable MSI interrupts for all mps driver instances, set the following
     tunable value in loader.conf(5):

           hw.mps.disable_msi=1

     To disable MSI-X interrupts for all mps driver instances, set the
     following tunable value in loader.conf(5):

           hw.mps.disable_msix=1

     To allow the driver to send multiple task management commands (like
     abort, LUN reset, etc.), set the following variable:

           hw.mps.X.allow_multiple_tm_cmds=1

     via loader.conf(5) or sysctl(8), where X is the adapter number.  By
     default the driver only sends one task management command at a time, to
     avoid causing a potential controller lock-up.

DEBUGGING
     To enable debugging prints from the mps driver, set the

           hw.mps.X.debug_level

     variable, where X is the adapter number, either in loader.conf(5) 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.

SEE ALSO
     cd(4), ch(4), da(4), mpt(4), pci(4), sa(4), scsi(4), targ(4)

HISTORY
     The mps driver first appeared in FreeBSD 9.0.

AUTHORS
     The mps driver was originally written by Scott Long <scottl@FreeBSD.org>.
     This man page was written by Ken Merry <ken@FreeBSD.org>.

BUGS
     This driver is still in development, it has only been tested on the amd64
     architecture and has some known shortcomings:
     +o   No IR (Integrated RAID) support.
     +o   No userland utility support (e.g.  mptutil(8).)
     +o   Sometimes the driver gets into a state where devices arrive and
         depart multiple times, without user intervention.
     +o   The error recovery code isn't complete.

FreeBSD 11.0-PRERELEASE       September 13, 2010       FreeBSD 11.0-PRERELEASE

NAME | SYNOPSIS | DESCRIPTION | HARDWARE | CONFIGURATION | DEBUGGING | SEE ALSO | HISTORY | AUTHORS | BUGS

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=mps&sektion=4&manpath=FreeBSD+9.0-RELEASE>

home | help