FreeBSD Manual Pages
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 con- trollers. 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 follow- ing 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 11.1 September 13, 2010 FreeBSD 11.1
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>