LSI SAS 9300-8i on sparc64

Hello, has anyone seen or tried LSI SAS 9300-8i or similar on sparc64
hardware? Any OS - NetBSD, OpenBSD, Solaris.

HBA - https://sander-europe.eu/files/products/docs/9300serieds.pdf

I think some hardware RAID cards normally have OpenBoot firmware which
allows the system to recognise disks connected to it. However, I cannot
find any documentation that would mention it for this HBA. On Broadcom
legacy support pages, I found SPARC Solaris utilities to manage the
card and to flash firmware. There is Solaris driver lsc(7D) which
supports this HBA. There is OpenBSD driver mpii(4) which supports this
HBA.

There is a certification page that claims full support for Solaris,
however no indication if this is valid for x86, SPARC or both.
https://www.oracle.com/webfolder/technetwork/hcl/data/components/details/lsi_logic/sol_11_2/10535.html

But, if the HBA has no OpenBoot firmware, then I guess I won't be able
to boot anything. In order to actually try it, I would need to purchase
it first.