---
name: "mpi"
section: "4"
platform: "openbsd"
package: "man"
version: "8.0-current-20261101"
release: "OpenBSD 8.0-current (2026-11-01)"
platforms: ["openbsd"]
url: "https://new.carta.tech/mpi/4"
---

# mpi(4)

LSI Logic Fusion-MPT Message Passing Interface

## NAME

**mpi** – LSI Logic Fusion-MPT Message Passing Interface

## SYNOPSIS

**mpi\* at pci?**

## DESCRIPTION

The **mpi** driver provides support for storage controllers using the LSI Logic Fusion-MPT Message Passing Interface family of chipsets:

- LSI Logic LSI53C1020, LSI53C1020A, LSI53C1030, LSI53C1030T, LSI53C1035, LSIFC909, LSIFC919, LSIFC919X, LSIFC929, LSIFC929X, LSIFC949, LSIFC949E, LSIFC949X, LSISAS1064, LSISAS1064E, LSISAS1068, LSISAS1068E

These chipsets can be found on the following controllers:

- Apple Fibre Channel PCI Express Card, Fibre Channel PCI-X Card

- Dell PERC 4/im, SAS 5/E, SAS 5/i, SAS 5/iR, SAS 6/iR

- Hewlett-Packard 8 Internal Port SAS Host Bus Adapter with RAID, A7173A, AB290A, EH417AA

- LSI Logic LSI20320-R, LSI21320-IS, LSI21320-R, LSI22320-R, LSI40919H, LSI40919LH, LSI40919LO, LSI40919O, LSI40929H, LSI40929LH, LSI40929LO, LSI40929O, LSI7102XP, LSI7102XP-LC, LSI7104EP-LC, LSI7104XP-LC, LSI7202CP-LC, LSI7202EP-LC, LSI7202XP, LSI7202XP-LC, LSI7204EP-LC, LSI7204XP-LC, LSI7402XP, LSI7402XP-LC, LSI7404EP-LC, LSI7404XP-LC, LSISAS3041E-R, LSISAS3041X-R, LSISAS3080X-R, LSISAS3442E-R, LSISAS3442X, LSISAS3442X-R, LSISAS3800X, LSISAS3801E, LSISAS3801X, LSISAS8208ELP, LSISAS8208XLP, LSIU320

The LSI Logic LSI53C1030 is emulated in the following products:

- VMware ESX Server 2.0 and higher, GSX Server 3.0 and higher, Player, Server, Workstation 4.5 and higher

Some models of these controllers have varying degrees of support for RAID 0 and RAID 1.

## SEE ALSO

[bio(4)](/bio/4.md), [intro(4)](/intro/4.md), [pci(4)](/pci/4.md), [scsi(4)](/scsi/4.md), [bioctl(8)](/bioctl/8.md), [sensorsd(8)](/sensorsd/8.md), [sysctl(8)](/sysctl/8.md)

## HISTORY

The **mpi** driver first appeared in OpenBSD 4.0.

## AUTHORS

The **mpi** driver was written by David Gwynne ⟨*dlg@openbsd.org*⟩ and Marco Peereboom ⟨*marco@openbsd.org*⟩.