Date: Tue, 27 Apr 2010 09:43:40 GMT From: Alexander Motin <mav@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 177393 for review Message-ID: <201004270943.o3R9heXD091896@repoman.freebsd.org>
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http://p4web.freebsd.org/@@177393?ac=10 Change 177393 by mav@mav_mavtest on 2010/04/27 09:43:11 Minor updates. Affected files ... .. //depot/projects/scottl-camlock/src/share/man/man4/mvs.4#2 edit Differences ... ==== //depot/projects/scottl-camlock/src/share/man/man4/mvs.4#2 (text+ko) ==== @@ -25,7 +25,7 @@ .\" .\" $FreeBSD: src/share/man/man4/ahci.4,v 1.6 2010/03/04 11:09:49 mav Exp $ .\" -.Dd April 24, 2010 +.Dd April 27, 2010 .Dt MVS 4 .Os .Sh NAME @@ -93,7 +93,7 @@ .Tn SATA ports of several generations (Gen-I/II/IIe) of Marvell SATA controllers. Each SATA port found is represented to CAM as a separate bus with one -target, or, if HBA supports Port Multipliers, 16 targets. +target, or, if HBA supports Port Multipliers (Gen-II/IIe), 16 targets. Most of the bus-management details are handled by the SATA-specific transport of CAM. Connected ATA disks are handled by the ATA protocol disk peripheral driver @@ -106,7 +106,7 @@ .Pp Driver features include support for Serial ATA and ATAPI devices, Port Multipliers (including FIS-based switching, when supported), -hardware command queues (up to 32 commands per port), +hardware command queues (up to 31 command per port), Native Command Queuing, SATA interface Power Management, device hot-plug and Message Signaled Interrupts. .Pp @@ -156,6 +156,9 @@ MV78100 SoC .El .El +Note, that this hardware supports command queueing and FIS-based switching +only for ATA DMA commands. ATAPI and non-DMA ATA commands executed one by one +for each port. .Pp .Sh SEE ALSO .Xr ada 4 ,
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