svn commit: r223915 - stable/8/share/man/man4
Pyun YongHyeon
yongari at FreeBSD.org
Sun Jul 10 22:09:35 UTC 2011
Author: yongari
Date: Sun Jul 10 22:09:34 2011
New Revision: 223915
URL: http://svn.freebsd.org/changeset/base/223915
Log:
MFC r223683:
Document two known hardware errata which requires manual link
configuration.
Submitted by: Aries Lee (arieslee <> jmicron com)
Modified:
stable/8/share/man/man4/jme.4
Directory Properties:
stable/8/share/man/man4/ (props changed)
Modified: stable/8/share/man/man4/jme.4
==============================================================================
--- stable/8/share/man/man4/jme.4 Sun Jul 10 20:49:13 2011 (r223914)
+++ stable/8/share/man/man4/jme.4 Sun Jul 10 22:09:34 2011 (r223915)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd December 20, 2010
+.Dd June 29, 2011
.Dt JME 4
.Os
.Sh NAME
@@ -178,3 +178,17 @@ address once station address is reprogra
It is highly recommended not to reprogram station address and
it is responsibility of administrator to store original station
address into a safe place when station address should be changed.
+.Pp
+There are two known 1000baseT link establishment issues with JMC25x.
+If the full mask revision number of JMC25x controller is less than
+or equal to 4 and link partner enabled IEEE 802.3az Energy Efficient
+Ethernet feature, the controller would not be able to establish a
+1000baseT link.
+Also if the length of cable is longer than 120 meters, controller
+can not establish a 1000baseT link.
+The known workaround for the issue is to force manual link
+configuration with 100baseTX instead of relying on auto-negotiation.
+The full mask revision number of controller could be checked with
+verbose kernel boot option.
+Use lower nibble of chip revision number to get full mask revision of
+the controller.
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