Hello all,
I don't see why PCIe cards wont work. There are plenty of them out there
with Intel and Mellonox chips (2 QSFP+ ports per PCIe 3.0 x8 card).
Note that you need to check your host machine has the correct PCIe
revision. A lot of boards have one 3.0 x16 slot and a bunch of 2.0 x4 or x8
slots.
Here is one:
https://www.amazon.com/StarTech-com-Dual-Port-QSFP-Server/dp/B07983NGQH
I recommend you gravitate towards cards based on Intel chips/controllers.
Intel's open source commitment/drivers is above every other network gear
company (in my experience). Broadcom is by far the worst for open source
drivers.
I agree with Marcus on the CPU issue. That ARM dual-core is going to get
annihilated at the full rate.
On Wed, May 8, 2019 at 2:11 PM Marcus D. Leech via USRP-users <
usrp-users@lists.ettus.com> wrote:
> On 05/08/2019 04:55 PM, Minutolo, Lorenzo (389I) via USRP-users wrote:
> > Hi,
> > I have some question about your new products.
> >
> > 1) What is the suggested hardware for communicating with the QSFP+ port?
> As I understand this a normal 40 Gbit PCIe card won’t work.
> >
> > 2) Does the embedded linux system gives any error while handling two
> channels at 200Msps full duplex without any signal processing (i.e.
> benchmark rate)?
> I'm going to go ahead and guess that an 800MHz CPU would be unable to
> consume 400Msps in any possible way, since that would imply an
>average of only 2 CPU clocks/sample. Even just bringing those samples
> into the CPU realm and into user-space would be some kind of
>minor miracle, even with multiple instruction issues/clock.
>
>
>
>
> >
> > Lorenzo
> > ___
> > USRP-users mailing list
> > USRP-users@lists.ettus.com
> > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>
>
> ___
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