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To: jhb@freebsd.org
From: "M. Warner Losh" <imp@bsdimp.com>
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Cc: h8msft@gmail.com, freebsd-drivers@freebsd.org
Subject: Re: BCM5709S ethernet adapter driver.
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In message: <4AB49138.4090206@FreeBSD.org>
            John Baldwin <jhb@freebsd.org> writes:
: Bob McClure wrote:
: > Greetings Driver Experts.
: > 
: >   I am trying to find out if anyone is working on adding driver support for
: > a Broadcom BCM5709S Ethernet adapter on FreeBSD.
: > 
: > 
: > I will have the opportunity to migrate some of my servers to IBM LS42 Blade
: > servers. I am told this is the only
: > 
: > adapter available, so selecting another interface at least at this point is
: > not an option.
: > 
: > 
: > Any input will be greatly appreciated.
: 
: A patch was recently posted to the lists from the forums I believe and 
: marius@ was going to review it when he gets some time.  I believe the 
: patch was reported as working for both 7 and 8.  I think it was posted 
: to hackers@ IIRC.

Yes.  Sam and I have reviewed the patches as well, and there's
problems with them.  While they appear to work, they are frobbing bits
that shouldn't need to be frobbed relating to receiving beacons
(effectively putting the card into promiscuous mode, iirc), which will
have a performance problem.  This is why I've not just pushed the
patches into the tree...

Warner