[Cerowrt-devel] risc-v options?

David P. Reed dpreed at deepplum.com
Tue Nov 30 17:52:35 EST 2021

For what? I have recently gotten a MicroSemi RISC-V SoC board with embedded FPGA (or maybe it is better thought of as an FPGA board with multicore hard logic RISC-V host.) Runs Linux very fast. It's not set up to be a router, though - not unless I populate its PCIe  slot with NICs. Standard Linux drivers for PCIe devices all work quite well, so far.
These early 64 bit RISC-V implementations are pretty darn good, but unlike Intel's Xeons, they don't yet handle memory channel performance very well.
(The 32-bit RISC-V's are really competing with ARM based microcontrollers for embedded systems. I don't find them interesting, though I have a couple sample boards with 32 bit RISC-V cores).
A random guess on my part: even consumer routers will be moving to 64-bit processor designs in the next couple years. That's because the price difference is getting quite small, as a percentage of total product cost, and because it is hard to buy "small memory address space" DIMMs. I could be wrong, but extrapolation from today's trends suggests that is more likely than not.
On Friday, November 26, 2021 3:02pm, "Dave Taht" <dave.taht at gmail.com> said:

> has anyone tried the latest generations of risc-v?
> https://linuxgizmos.com/17-sbc-runs-linux-on-allwinner-d1-risc-v-soc/
> --
> I tried to build a better future, a few times:
> https://wayforward.archive.org/?site=https%3A%2F%2Fwww.icei.org
> Dave Täht CEO, TekLibre, LLC
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