svn commit: r203124 - head/share/man/man4
Alexander Motin
mav at FreeBSD.org
Thu Jan 28 18:15:19 UTC 2010
Author: mav
Date: Thu Jan 28 18:15:19 2010
New Revision: 203124
URL: http://svn.freebsd.org/changeset/base/203124
Log:
Note added FIS-based switching support.
Modified:
head/share/man/man4/ahci.4
Modified: head/share/man/man4/ahci.4
==============================================================================
--- head/share/man/man4/ahci.4 Thu Jan 28 17:54:47 2010 (r203123)
+++ head/share/man/man4/ahci.4 Thu Jan 28 18:15:19 2010 (r203124)
@@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd August 24, 2009
+.Dd January 28, 2010
.Dt AHCI 4
.Os
.Sh NAME
@@ -114,14 +114,11 @@ ATAPI devices are handled by the SCSI pr
etc.
.Pp
Driver features include support for Serial ATA and ATAPI devices,
-Port Multipliers, hardware command queues (up to 32 commands per port),
+Port Multipliers (including FIS-based switching, when supported),
+hardware command queues (up to 32 commands per port),
Native Command Queuing, SATA interface Power Management, device hot-plug
and Message Signaled Interrupts.
.Pp
-The Port Multiplier FIS Based Switching feature added in the AHCI 1.2
-specification, which is required for effective parallel operation of devices
-behind Port Multipliers, is not yet supported.
-.Pp
AHCI hardware is also supported by ataahci driver from
.Xr ata 4
subsystem. If both drivers are loaded at the same time, this one will be
@@ -131,6 +128,10 @@ The
.Nm
driver supports AHCI compatible controllers having PCI class 1 (mass storage),
subclass 6 (SATA) and programming interface 1 (AHCI).
+.Pp
+Also, in cooperation with atamarvell and atajmicron drivers of ata(4),
+it supports AHCI part of legacy-PATA + AHCI-SATA combined controllers,
+such as JMicron JMB36x and Marvell 88SX61xx.
.Sh SEE ALSO
.Xr ada 4 ,
.Xr cd 4 ,
More information about the svn-src-head
mailing list