topic Expanding PCIe to connected i210 controller using PCIe switch in Ethernet Products

Expanding PCIe to connected i210 controller using PCIe switch

JMerc4 — Wed, 13 Sep 2017 14:11:49 GMT

I am trying to discover caveats in connecting two i210s to a port-expanded Atom using a Pericom/Diodes x2 to dual x1 switch. (PI7C9X2G304ELQZXAE)

Pericom seems to suggest that DMAs are not supported with most of the switches (certainly all of their low port count switches).

There is also a specified 150nS latency through the PCIe switch.

Is this PCIe switching possible with network NICs like the i210?

idata — Thu, 14 Sep 2017 05:18:29 GMT

Hi Jeff_M,

Thank you for posting in Wired Communities. I will need to check on this inquiry.

Regards,

Sharon

idata — Mon, 18 Sep 2017 07:05:30 GMT

Hi Jeff_M,

Further checking, as this is embedded component, please post your inquiry at https://embedded.communities.intel.com/

Here is the I210 datasheet for your reference

Thanks,

Sharon