GSP
Quick Navigator

Search Site

Unix VPS
A - Starter
B - Basic
C - Preferred
D - Commercial
MPS - Dedicated
Previous VPSs
* Sign Up! *

Support
Contact Us
Online Help
Handbooks
Domain Status
Man Pages

FAQ
Virtual Servers
Pricing
Billing
Technical

Network
Facilities
Connectivity
Topology Map

Miscellaneous
Server Agreement
Year 2038
Credits
 

USA Flag

 

 

Man Pages


Manual Reference Pages  -  MPS (4)

NAME

mps - LSI Fusion-MPT 2 Serial Attached SCSI driver

CONTENTS

Synopsis
Description
Hardware
Configuration
Debugging
See Also
History
Authors
Bugs

SYNOPSIS

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


.Cd device scbus
.Cd 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 and WarpDrive solid state storage cards.

HARDWARE

The mps 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 mps driver instances, set the following tunable value in loader.conf(5):
hw.mps.disable_msi=1

To disable MSI interrupts for a specific mps driver instance, set the following tunable value in loader.conf(5):

dev.mps.X.disable_msi=1

where X is the adapter number.

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 disable MSI-X interrupts for a specific mps driver instance, set the following tunable value in loader.conf(5):

dev.mps.X.disable_msix=1

where X is the adapter number.

To set the maximum number of DMA chains allocated for all adapters, set the following variable in loader.conf(5):

hw.mps.max_chains=NNNN

To set the maximum number of DMA chains allocated for a specific adapter, set the following variable in loader.conf(5):

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.

The adapter can issue the StartStopUnit SCSI command to SATA direct-access devices during shutdown, to allow the device to quiesce before being powered down. To control this feature for all adapters, set the

hw.mps.enable_ssu

tunable value in loader.conf(5) to one of the following values:
0 Do not send SSU to either HDDs or SSDs.
1 Send SSU to SSDs, but not to HDDs; this is the default value.
2 Send SSU to HDDs, but not to SSDs.
3 Send SSU to both HDDs and SSDs.

To control the feature for a specific adapter, set the following tunable value in loader.conf(5):

dev.mps.X.enable_ssu

where X is the adapter number. The same set of values are valid as for all adapters.

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), loader.conf(5), sysctl(8)

HISTORY

The mps driver first appeared in
.Fx 9.0 .

AUTHORS


.An -nosplit The mps driver was originally written by
.An Scott Long Aq scottl@FreeBSD.org . It has been improved and tested by LSI Logic Corporation. This man page was written by
.An Ken Merry Aq ken@FreeBSD.org .

BUGS

This driver has a couple of known shortcomings:
  • No userland utility available (e.g., mptutil(8)).
  • The driver probes devices sequentially. If your system has a large number of devices, the probe will take a while.
Search for    or go to Top of page |  Section 4 |  Main Index


Powered by GSP Visit the GSP FreeBSD Man Page Interface.
Output converted with manServer 1.07.