10:41 <rwmjones> I got a shipping notice from VisionFive finally

10:41 <rwmjones> apparently at Heathrow ... in customs obviously :-(

10:42 <rwmjones> in unrelated to RISC-V news, I also got a Pine ROCKPro64

10:43 <rwmjones> the ROCKPro64 is interesting because (apparently, not tested) it supports being a PCIe endpoint, so with a suitable bit of Linux kernel code it can emulate a PCI device, like vDPA etc

10:45 <rwmjones> https://forum.pine64.org/showthread.php?tid=17251

10:50 <javierm> rwmjones: it's a cool board. Not tested emulating a PCI device either, but had to fix a bug in the PCIe host driver in the past: https://blog.dowhile0.org/2021/06/09/a-lethal-spurious-interrupt/

10:51 <javierm> rwmjones: so if you have any issues, let me know and should be able to help :)

10:51 <rwmjones> my main issue is trying to find out what sort of PCIe (crossover?) cable is needed to do PCIe Endpoint

10:52 <rwmjones> it seems hard to imagine that a normal PCIe riser would work

10:52 <rwmjones> (cf https://en.wikipedia.org/wiki/PCI_Express#Pinout)

11:06 <javierm> rwmjones: yeah, because a normal riser would be to attach a PCI device through the PCIe 4x slot

11:06 <javierm> but unsure what's needed to be exposed as a PCIe endpoint...

11:09 <javierm> rwmjones: could crossing the RX/TX lines as suggested in the last post of that forum thread be enough? I have no idea

14:22 <ol> What's the use for emulating a PCI endpoint? Faster networking?