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We refer to a FAQ for SR-IOV on Intel® Ethernet Server Adapters as per below link and shows that Intel I225 are not listed among answer for the question Which Intel® Ethernet Adapters and Intel® Ethernet Controllers support SR-IOV. Which suggest that it might not support for SR-IOV.
Frequently Asked Questions for SR-IOV on Intel® Ethernet Server Adapters
However you still can try check if your kernel and hardware support SR-IOV by running the following command and see if it can show any result: lspci -v | grep -i "SR-IOV"
Since we have not seen an update, if you need any additional information, please submit a new question as this thread will no longer be monitored.