Date: Fri, 23 Aug 2013 13:52:39 -0700 From: Adrian Chadd <adrian@freebsd.org> To: Alfred Perlstein <alfred@freebsd.org> Cc: "net@freebsd.org" <net@freebsd.org> Subject: Re: Making IB a first class citizen. Message-ID: <CAJ-VmokUZkZoYXtvLfYorbBWPbQCj5M_xxUcu136VvhTV6Gzhw@mail.gmail.com> In-Reply-To: <521792CF.2060905@freebsd.org> References: <521792CF.2060905@freebsd.org>
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.. should just check to see what impact it has on performance in the general case. that may change the cache behaviour of the ARP / routing table code. -adrian On 23 August 2013 09:50, Alfred Perlstein <alfred@freebsd.org> wrote: > Hello -net. > > This email is about making Infiniband a first class citizen of the FreeBSD > kernel. > > Right now we have one #ifdef OFED in the src tree that makes compiling > modules a real challenge: > > In sys/net/if_llatbl.h the "struct llentry" size changes based on if OFED > is compiled in or not, only by 16 bytes because Infiniband uses 20bytes for > MAC. I am wondering if it would be OK to just unifdef this part to make > inifiband a first class citizen of the kernel. Otherwise maybe we can > reverse the ifdef so that it's WITHOUT_OFED and by default have it on. > > I understand that we can not do this for FreeBSD 9.x due to breaking > network ABI, however I think we still have time to do so in FreeBSD 10.x. > > If there's no objection I'd like to push this change into head in the next > day or two. The only difference is +16 bytes to the "struct llentry". > > Comments? > > ______________________________**_________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/**mailman/listinfo/freebsd-net<http://lists.freebsd.org/mailman/listinfo/freebsd-net> > To unsubscribe, send any mail to "freebsd-net-unsubscribe@**freebsd.org<freebsd-net-unsubscribe@freebsd.org> > " >
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