2020-10-22 07:35, Stuart Longland wrote:
PCIe devices _can_ be connected to a
Raspberry Pi 4, but it's a rather hap-hazard process that's not
recommended unless you _really_ like re-working high-speed data links
on
printed circuit boards.
Closest you get on a 'Pi is maybe some of the SPI Ethernet ICs that you
might be able to hook to the GPIO header, but then you'd have to hack
the OpenBSD kernel to support it, and it won't support gigabit speeds.
That's not entirely true anymore. Just the other day the RPi Compute
Module 4
was released. It exposes the PCI interface.
From the Datasheet [1]
2.3. PCIe (Gen2 x1)
The CM4 has an internal PCIe 2.0 x1 host controller. While on the
Raspberry Pi 4,
Model B this has been connected to a USB 3 host controller (using the
Via Labs
VLI805), on the CM4 the product designer is free to choose how the
interface is
used.
A standard x86 machine and a multi-port network card is looking pretty
good at this point.
Yes, this still holds true. If low power consumption is not crucial, I
too would
rather go for a decent amd64 plattform.
[1]: https://datasheets.raspberrypi.org/cm4/cm4-datasheet.pdf
