AMD PTDMA support

[Anna Tauzzi]

I was able to make it work with:

*) IOMMU disabled
*) binding the device with uio_pci_generic (igb_uio not available on Ubuntu
22.04)
*) disabling the "Above 4GB decoding" in the BIOS

 Launching the rawdev_autotest in dpdk-test

Il giorno mer 19 ott 2022 alle ore 21:57 Antonio Di Bacco <
a.dibacco.ks at gmail.com> ha scritto:

> Anyone using the PTDMA in DPDK?
>
> I applied a patch from sebastian selwin to dpdk 21.11 (ABI22).
> Then I chose rawdev_autotest in dpdk-test but I get this error:
>
> ### Run selftest on each available rawdev
> Running Copy Tests
> In test_enqueue_copies:71 - Error with rte_ptdma_completed_ops - 1
> Rawdev 0 (0000:04:00.2) selftest: Failed
> Test Failed
> RTE>>
>
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