From owner-freebsd-bugs@FreeBSD.ORG  Wed Mar  2 18:44:33 2011
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Date: Wed, 2 Mar 2011 18:44:33 GMT
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To: dimanenator@gmail.com, yongari@FreeBSD.org, freebsd-bugs@FreeBSD.org,
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From: yongari@FreeBSD.org
Cc: 
Subject: Re: kern/155192: bge1 mtu problem
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Synopsis: bge1 mtu problem

State-Changed-From-To: open->closed
State-Changed-By: yongari
State-Changed-When: Wed Mar 2 18:43:36 UTC 2011
State-Changed-Why: 
The commit message you referred to does not apply to your controller.

bge(4) supports jumbo frame on controllers that provide extended RX
BD capability. Even though your controller BCM5714 supports very
limited set of jumbo frame it has severe hardware limitation which
make it hard to coexist existing controllers which have different
and efficient jumbo frame scheme. I think other OSes also do not
support jumbo frame on BCM5714 family. 
Because there is no easy way to support this exotic jumbo frame
scheme without sacrificing a lot of sane controllers I have no plan
to implement the limited jumbo frame scheme on BCM5704. I also
think you wouldn't get much benefit from this kind of jumbo frame
support due to the limitation of hardware.


Responsible-Changed-From-To: freebsd-bugs->yongari
Responsible-Changed-By: yongari
Responsible-Changed-When: Wed Mar 2 18:43:36 UTC 2011
Responsible-Changed-Why: 
Track.

http://www.freebsd.org/cgi/query-pr.cgi?pr=155192