Skip site navigation (1)Skip section navigation (2)
Date:      Fri, 18 May 2012 02:06:34 +0000 (UTC)
From:      Glen Barber <gjb@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org
Subject:   svn commit: r235590 - stable/8/share/man/man4
Message-ID:  <201205180206.q4I26YLE029090@svn.freebsd.org>

next in thread | raw e-mail | index | archive | help
Author: gjb (doc committer)
Date: Fri May 18 02:06:34 2012
New Revision: 235590
URL: http://svn.freebsd.org/changeset/base/235590

Log:
  Document requirement to alter some sysctls when using igb(4) with
  jumbo frames.
  
  PR:		153738

Modified:
  stable/8/share/man/man4/igb.4
Directory Properties:
  stable/8/share/man/man4/   (props changed)

Modified: stable/8/share/man/man4/igb.4
==============================================================================
--- stable/8/share/man/man4/igb.4	Fri May 18 02:06:10 2012	(r235589)
+++ stable/8/share/man/man4/igb.4	Fri May 18 02:06:34 2012	(r235590)
@@ -31,7 +31,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd May 14, 2010
+.Dd May 12, 2012
 .Dt IGB 4
 .Os
 .Sh NAME
@@ -160,6 +160,14 @@ The minimum is 80, and the maximum is 40
 .It Va hw.igb.enable_aim
 If set to 1, enable Adaptive Interrupt Moderation.
 The default is to enable Adaptive Interrupt Moderation.
+.It Va kern.ipc.nmbclusters
+The maximum number of mbuf clusters allowed.
+If the system has more than one igb card or jumbo frames are
+enabled, this value will need to be increased.
+.It Va kern.ipc.nmbjumbo9k
+The maximum number of mbuf 9k jumbo clusters allowed.
+Increasing this to allow for at least 8192 extra clusters
+per interface can allow for an mtu of 8192.
 .El
 .Sh DIAGNOSTICS
 .Bl -diag



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201205180206.q4I26YLE029090>