I have a metis M.2 device running on a RPI M.2 hat using the 1.2.4 device driver and the 1.4.2 SDK. However, when I tried to run inference, I ran into a DMA transfer issue. I tried to fix this by updating the AIPU firmware but the DMA transfer issue prevented the firmware from being updated.
Host: Raspberry Pi 5
OS: Raspberry Pi OS (Debian-based)
Kernel: 6.12.47+rpt-rpi-2712
Driver: metis 1.2.4
SDK: 1.4.2
Flash firmware: 1.3.2
Issue: Device communication timeout (1 second) during firmware operations
PCIe: x1 link (Pi 5 M.2 limitation)
Error: DMABUF_METIS_XFER failed, UnsupReq PCIe errors
Do you have any advice on how to proceed?
Solved
Issue with RPI 5 DMA and firmware upgrade
Best answer by juliannarvaez
I ended up finding that this was an issue when using axdevice --reboot to reboot the Metis M.2 device. A full shutdown and restart of the docker container was sufficient to fix the DMA transfer issue.
I ended up finding that this was an issue when using axdevice --reboot to reboot the Metis M.2 device. A full shutdown and restart of the docker container was sufficient to fix the DMA transfer issue.
+2- Axelera Team
Ah nice work
What’s the project you’re working on?
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