Hi DPDK folks, I’m trying to use IOAT (rte_dma_copy) on Skylake. I can do a single submit and completion OK. When I try to do more (> 3 as it happens), the IOAT reports:
“ioat_completed(): Device HALTED and could not be recovered”. >From the rte_dma_dump I see the channel status has entered HALTED and the >completions stop. My question is, what can cause the channel to halt? (e.g. bad src or dst address). Any hints on how I might debug this? Also, I have to reboot to get it out of this state. Re-loading drivers doesn’t seem to help – any other way? Daniel
