Question regarding the status of Hotplug on multi-processes

[Brandes, Shai]

Hi all, I hope this email finds you well.

We would like to understand the status of Hotplug on multi-processes:

- 18.11 RN https://doc.dpdk.org/guides-23.11/rel_notes/release_18_11.html states that it added support for device multi-process hotplug.
- DTS test plan https://doc.dpdk.org/dts/test_plans/hotplug_mp_test_plan.html states that Hotplug on multi-processes is not expected to function.
- When testing both our ENA device and Intel device, the multiprocess does not seem to function after hotplug (both fail with the same error in the secondary process that it is unable to reach the primary process).

Our understanding is that there is a gap with MP. If this is correct, is there any plan to close this gap?

Thanks for your time and consideration,
Shai