[MinnowBoard] NIC Lure

Chris Benson chris at chrisbenson.com
Tue Nov 25 22:08:47 UTC 2014


Hi John,

I'll take a look at USB3/GbE for an interim solution.  It came up as an
option some months ago, but I dismissed it because I thought the NIC lure
would be available in short order.  Given that its availability timeline is
unknown right now, I agree the USB3/GbE approach is probably the best
option available if I'm going to continue developing for the MAX.

Thanks!
Chris


On Tue, Nov 25, 2014 at 4:27 PM, John Hawley <john.hawley at intel.com> wrote:

> Chris,
>
> Out of curiosity would USB3 be good enough as an interim solution?
> There exist USB3 GbE nics, and in my testing you can saturate them just
> as well as the PCI-E.  Obviously it's not ideal, losing DMA isn't
> anything to sneeze at, I'll admit, but for the applications I'm doing
> with the MAX where I need more than one NIC that's what I've been doing
> and have been pretty happy.
>
> Some quick paper napkin math to justify USB3 & GbE:
>
> USB3 has 5Gbps of available bandwidth
>
> a single GbE interface needs 2Gbps of bandwidth (bi-directional)
>
> so a single USB3 port should be able to accommodate two GbE ports and 5
> 10/100 ports before *COMPLETELY* maxing out the bus.
>
> I'm obviously not taking into account various bits of overhead, or the
> extra CPU time needed to deal with USB in general, just more indicating
> that USB might not be a horrible interim solution (obviously depending).
>
> - John 'Warthog9' Hawley
>
> On 11/25/2014 12:24 PM, Chris Benson wrote:
> > Dave,
> >
> > I'm in a bit of a bind then.  I really want to use the MinnowBoardMAX,
> > but multiple NICs are critical for my application.
> >
> > Recognizing that production depends on factors beyond your control, can
> > you provide a very loose ballpark estimate on when the NIC lure might
> > become available?  (i.e. 3 months, 6 months, 9 months, 1 year, etc.)
> >
> > Also, would it be possible to upload the design files (and other
> > relevant files) for the NIC lure to the wiki page?
> >
> > http://www.elinux.org/Minnowboard:MaxLures
> >
> > Thanks,
> > Chris
> >
> >
> > On Tue, Nov 25, 2014 at 3:04 PM, David Anders <danders at circuitco.com
> > <mailto:danders at circuitco.com>> wrote:
> >
> >     Chris,
> >
> >     unfortunately i can not give you a schedule. while the design is
> >     done, getting
> >     it into production does depend on a lot of factors outside my
> >     control from an
> >     engineering perspective.
> >
> >     the current design of the NIC Lure only contains a single NIC with a
> >     secondary
> >     SATA connector...
> >
> >     Dave
> >
> >
> >     > On November 25, 2014 at 2:00 PM Chris Benson
> >     <chris at chrisbenson.com <mailto:chris at chrisbenson.com>> wrote:
> >     >
> >     >
> >     > Hi Dave,
> >     >
> >     > When do you expect the NIC lure will be available?
> >     >
> >     > And will the lure include one or two NICs?
> >     >
> >     > I've been waiting for many months for it to become available for
> >     several
> >     > MAX-based prototypes I'm working on, and it's becoming a real
> >     problem for
> >     > me.
> >     >
> >     > Thanks,
> >     > Chris
> >     >
> >     >
> >     > On Tue, Nov 25, 2014 at 2:50 PM, David Anders
> >     <danders at circuitco.com <mailto:danders at circuitco.com>> wrote:
> >     >
> >     > > Chris/Scott,
> >     > >
> >     > > sorry for the delay response. we've been concentrating on
> >     getting the
> >     > > inventory
> >     > > up on the minnowmax so almost all of our available production
> >     resources
> >     > > have
> >     > > allocated for that. with that said we do have the Flotsam Lure
> >     (aka mSATA
> >     > > Lure)
> >     > > and the Jetsam Lure (aka mPCIe Lure) rolling through production
> >     now....
> >     > >
> >     > > https://plus.google.com/101339419642360856354/posts/HrQVBwskfjw
> >     > >
> >     > > technodisti.com <http://technodisti.com> should be the first
> >     distributor to have the lures in
> >     > > stock at
> >     > > the end of next week...
> >     > >
> >     > > Dave
> >     > >
> >     > >
> >     > > > On November 25, 2014 at 12:52 PM Scott Guthrie
> >     <scottgu3 at gmail.com <mailto:scottgu3 at gmail.com>>
> >     > > wrote:
> >     > > >
> >     > > >
> >     > > > Funny...I was on TechnoDisti this morning, thinking something
> >     might have
> >     > > > popped up.  But...not yet.  Perhaps soon.
> >     > > >
> >     > > > Scott
> >     > > >
> >     > > > On Tue, Nov 25, 2014 at 1:22 PM, Mitchell, Nathaniel P <
> >     > > > nathaniel.p.mitchell at intel.com
> >     <mailto:nathaniel.p.mitchell at intel.com>> wrote:
> >     > > >
> >     > > > >  According to a comment from David Anders on this thread:
> >     > > > >
> https://plus.google.com/101339419642360856354/posts/CTRRofGPpg7
> >     > > > >
> >     > > > > Some of the lures should be available for order now? Still
> >     waiting on a
> >     > > > > link.
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > > Nathaniel
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > > *From:* elinux-MinnowBoard [mailto:
> >     > > > > elinux-minnowboard-bounces at lists.elinux.org
> >     <mailto:elinux-minnowboard-bounces at lists.elinux.org>] *On Behalf Of
> >     *Scott
> >     > > Guthrie
> >     > > > > *Sent:* Tuesday, November 25, 2014 9:06 AM
> >     > > > > *To:* MinnowBoard Development and Community Discussion
> >     > > > > *Subject:* Re: [MinnowBoard] NIC Lure
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > > Or...ANY lures other than the Calamari Lure.  I personally am
> >     > > interested
> >     > > > > in the SeaCat, Flotsam and Jetsam lures.  Last I heard
> >     anything about
> >     > > them
> >     > > > > was in August...are there any in production?
> >     > > > >
> >     > > > > The board is great, but for this thing grow, I'm thinking
> >     these add-on
> >     > > > > boards need to be readily available as well...
> >     > > > >
> >     > > > > Scott
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > > On Tue, Nov 25, 2014 at 10:56 AM, Chris Benson
> >     <chris at chrisbenson.com <mailto:chris at chrisbenson.com>>
> >     > > > > wrote:
> >     > > > >
> >     > > > >  Any update on when NIC lures will be available?
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > > Thanks,
> >     > > > >
> >     > > > > Chris Benson
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > >
> >     > > > > _______________________________________________
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> >     > > > >
> >     > > > >
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