ipxe in constant loop

[NiKiZe]

There should be nothing to loop back to initializing devices,
Any chance you can take a picture of the output?

ipxe is compiled with debug enabled per .c file, so for example in this case
make bin-x86_64-efi/ipxe.efi DEBUG=efi_autoboot
might give something.

Also using EMBED= to add a script with just
#!ipxe
shell

hopefully gets you to an shell.
Maybe your dhcp responds with ipxe.efi filename for efi requests, instead of sending boot.ipxe when ipxe is requesting the dhcp packet?