Date: Mon, 4 Dec 2006 19:19:48 GMT From: Dieter<freebsd@sopwith.solgatos.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/106343: Need SATA NCQ support Message-ID: <200612041919.kB4JJmh5080336@www.freebsd.org> Resent-Message-ID: <200612041930.kB4JU9Vp099552@freefall.freebsd.org>
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>Number: 106343 >Category: kern >Synopsis: Need SATA NCQ support >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Mon Dec 04 19:30:09 GMT 2006 >Closed-Date: >Last-Modified: >Originator: Dieter >Release: 6.0 >Organization: >Environment: >Description: atacontrol cap ad4 reports: Feature Support Enable Value Vendor Native Command Queuing (NCQ) yes - 31/0x1F I have looked in the atacontrol(8) man page, the ata(4) man page, I grepped all the section 4 & 8 man pages, and I did an online search, but I cannot find how to turn on SATA NCQ. Write performance without NCQ is unacceptable. NCQ would improve write performance significantly. It is not obvious if this is "just" a documentation problem, or if NCQ support needs to be added to the various SATA controller device drivers. (nforce4 ultra in my case) atapci1: <nVidia nForce4 SATA150 controller> port 0x9f0-0x9f7,0xbf0-0xbf3,0x970-0x977,0xb70-0xb73,0xcc00-0xcc0f mem 0xfebfb0\ 00-0xfebfbfff irq 10 at device 7.0 on pci0 ata2: <ATA channel 0> on atapci1 ad4: 238475MB <Seagate ST3250823AS 3.03> at ata2-master SATA150 >How-To-Repeat: >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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