Dell PERCH H310 - IT mode flashed or not

I recently purchased a SAS Raid card Dell PERCH H310.
As the description did not mention "IT mode", I assumed it was not flashed yet, and I started to follow fohdeesha's guide to flash it.
Unfortunately, when running the `info` command in FreeDOS (litteraly the first step :/), I didn't get any result.

Before debugging & deep diving in this topic that I honestly do not know at all, is there an easy way to determine if my SAS card has already been flashed in IT mode (LSI firmware) yet ?

Note: I'm running OSX on my personal laptop, and my homelab (Work in Progress) mobo has an ASUS WS C246M Pro (running Aptio BIOS tool).