AF_XDP sockets across multiple NIC queues

Hello everyone,

I want to write a multi-threaded AF_XDP server where all N threads can
read from all N NIC queues. In my design, each thread creates N AF_XDP
sockets, each associated with a different queue. I have the following
questions:

1. Do sockets associated with the same queue need to share their UMEM
area and fill and completion rings?
2. Will there be a single XSKMAP holding all N^2 sockets? If yes, what
happens if my XDP program redirects a packet to a socket that is
associated with a different NIC queue than the one in which the packet
arrived?

I must mention that I am using the XDP skb mode with copies.

Thank you in advance,
Kostis