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   LaF0rge (laf0rge@chaos.social)'s status on Wednesday, 11-Dec-2024 08:43:05 JST LaF0rge

   Im surprised nobody has released a board with a PCIe to legacy PCI bridge for the Raspberry Rpi5 yet. Something to host old cards [like Digium POTS or TDM DAHDI, ATM, FDDI, ...] in it. Would be a power and space saving way compared to ancient processors of the parallel PCI bus. #raspberrypi #electronics

   • Embed this notice
     LaF0rge (laf0rge@chaos.social)'s status on Wednesday, 11-Dec-2024 17:57:02 JST LaF0rge

     in reply to

     • Arnd Bergmann

     @arnd *sigh* how can anyone PCIe host/root not translate I/O ports? Isn't it super simple to just map them somewhere in the physical address space? What is wrong with people? #raspberrypi

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     Arnd Bergmann (arnd@society.oftrolls.com)'s status on Wednesday, 11-Dec-2024 17:57:04 JST Arnd Bergmann

     in reply to

     @LaF0rge The PCIe host bridge driver for that board doesn't translate I/O port resources, which means that many older PCI cards are impossible to use behind a bridge. I don't know if it's a hardware limitation or if the port window is left out from the device tree because it's never been tested.

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     LaF0rge (laf0rge@chaos.social)'s status on Wednesday, 11-Dec-2024 18:02:46 JST LaF0rge

     in reply to

     • Ian Hanschen

     @furan I don't think #rpi5 has the equivalent of SRV-IO to map entire PCI[e] devices into a guest? Not my area of expertise. In any case, I'd be happy if the legacy PCI cards can be used from normal Linux drivers on the RPI host, without any VMs/guests. #raspberrypi

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     Ian Hanschen (furan@mastodon.social)'s status on Wednesday, 11-Dec-2024 18:02:47 JST Ian Hanschen

     in reply to

     @LaF0rge can I use libvert with qemu on a pi5? Did this on x86_64 to poke 3dfx PCI cards (over PCIe over thunderbolt) into a qemu instance.

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     Wilfried Klaebe (wonka@chaos.social)'s status on Wednesday, 11-Dec-2024 19:42:35 JST Wilfried Klaebe

     in reply to

     @LaF0rge I'd love enclosures bridging USB4 to PCI... Still have a HFC-S lying around.