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 > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com >
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