Date: Mon, 3 Aug 2015 23:04:33 +0000 (UTC) From: Xin LI <delphij@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r286261 - stable/10/share/man/man4 Message-ID: <201508032304.t73N4Xl3059596@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: delphij Date: Mon Aug 3 23:04:32 2015 New Revision: 286261 URL: https://svnweb.freebsd.org/changeset/base/286261 Log: MFC r284607: Document kern.cam.ada.legacy_aliases, while I'm there also fix some typos. Modified: stable/10/share/man/man4/ada.4 Directory Properties: stable/10/ (props changed) Modified: stable/10/share/man/man4/ada.4 ============================================================================== --- stable/10/share/man/man4/ada.4 Mon Aug 3 22:14:45 2015 (r286260) +++ stable/10/share/man/man4/ada.4 Mon Aug 3 23:04:32 2015 (r286261) @@ -25,7 +25,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 22, 2014 +.Dd June 19, 2015 .Dt ADA 4 .Os .Sh NAME @@ -45,14 +45,14 @@ The host adapter must also be separately .Tn ATA direct access device can be configured. .Sh COMMAND QUEUING -Command queueing allows the device to process multiple transactions +Command queuing allows the device to process multiple transactions concurrently, often re-ordering them to reduce the number and length of seeks. .Tn ATA -defines two types of queueing: -.Tn TCQ (Tagged Command Queueing, PATA legacy) +defines two types of queuing: +.Tn TCQ (Tagged Command Queuing, PATA legacy) and -.Tn NCQ (Native Command Queueing, SATA) . +.Tn NCQ (Native Command Queuing, SATA) . The .Nm device driver takes full advantage of NCQ, when supported. @@ -146,6 +146,16 @@ instead of .Pa /etc/sysctl.conf . The global default is currently 1. The per-device default is to leave it as-is (follow global setting). +.It Va kern.cam.ada.legacy_aliases +.Pp +This variable determines whether +.Pa /dev/ad Ns Ar Y +symbolic links are created, +which tries to mimic old +.Xr ata 4 +numbering. +Set to 1 to enable legacy aliases symlinks, 0 to disable. +The default is currently enabled. .El .Sh FILES .Bl -tag -width ".Pa /dev/ada*" -compact
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201508032304.t73N4Xl3059596>