Date: Mon, 3 Jan 2011 19:34:38 -0800 From: mdf@FreeBSD.org To: Alexander Kabaev <kabaev@gmail.com> Cc: arch@freebsd.org Subject: Re: Linux kernel compatability Message-ID: <AANLkTin0GV55nezaODJ3mrAH-vQKWB6YziPKnAspKTTO@mail.gmail.com> In-Reply-To: <20110103220153.69cf59e0@kan.dnsalias.net> References: <alpine.BSF.2.00.1101031017110.1450@desktop> <20110103220153.69cf59e0@kan.dnsalias.net>
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On Mon, Jan 3, 2011 at 7:01 PM, Alexander Kabaev <kabaev@gmail.com> wrote: > On Mon, 3 Jan 2011 10:31:24 -1000 (HST) > Jeff Roberson <jroberson@jroberson.net> wrote: >> >> The infiniband port has been done by creating a 10,000 line KPI >> compatability layer. =A0With this layer the vast majority of the driver >> code runs unmodified. =A0The exceptions are anything that interfaces >> with skbs and most of the code that deals with network interfaces. > > This probably will go against popular opinion here, but having 10k > linux emulation layer that _almost_ work in the tree will be an > unfortunate event and will do more damage to FreeBSD as a platform than > good in the long run. I would rather see this code never hit main > repository. I don't agree or disagree with this opinion yet, but I would like some detail on why you think it would be unfortunate and do damage to FreeBSD. That's a pretty loaded statement and I believe it deserves fleshing out. Specifically, I can't tell if you're saying that the problem is that the layer almost works (for some value of almost...) and if it would be okay if the layer "worked" (for some value of works). Thanks, matthew
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