Date: Tue, 12 Jun 2007 23:17:41 -0700 From: Darren Reed <darrenr@fastmail.net> To: Kip Macy <kip.macy@gmail.com> Cc: src-committers@freebsd.org, Andre Oppermann <andre@freebsd.org>, cvs-src@freebsd.org, cvs-all@freebsd.org, Jack Vogel <jfvogel@gmail.com>, darrenr@freebsd.org, Sam Leffler <sam@errno.com> Subject: Re: cvs commit: src/sys/net if.h Message-ID: <466F8C05.50002@fastmail.net> In-Reply-To: <b1fa29170706121303h2629ad8aw302c34240d48c2ff@mail.gmail.com> References: <200706112008.l5BK8CQ7033543@repoman.freebsd.org> <466DACD6.4040606@errno.com> <2a41acea0706111330v6a39cf84o495f6acf62ba7ff7@mail.gmail.com> <2a41acea0706111333p5349993dg9315bfe8396f78a@mail.gmail.com> <466DB362.8010902@freebsd.org> <2a41acea0706111346l227b1399jd80d85771345d8be@mail.gmail.com> <466DB70D.8080800@freebsd.org> <2a41acea0706111403l5f4e1db1re2c901670e327485@mail.gmail.com> <466EF309.4080109@freebsd.org> <b1fa29170706121303h2629ad8aw302c34240d48c2ff@mail.gmail.com>
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Kip Macy wrote: >> To the best of my knowledge, it is a Solarisism and the 10G cards >> from Sun (now licensed to Marvel?) are already delivering this. > > Hrrrrm. Almost every GigE card out there has it. And yes Marvell is > OEM'ing the card. > > The only thing novel about Neptune is the unusually large number of > TX/RX dma engines - to better cater to sun4v and the fact that the > number of dma engines was made asymmetric to use up their transistor > budget. Neptune has 24/16 whereas cxgb only has 8/8. I don't know > about mxge and Oplin but I'm sure they're similar. I don't recall where I heard it, but I'm pretty sure that the numbers here (rx/tc) will be much larger in the next year or two on some of the NICs that will be avialable. Darren
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