Have a single s9100 and several s9000 cards on Ubuntu 18.04.4
Downloaded the amdgpu-pro-21.10-1263778-ubuntu-18.04.tar which seemed to install just fine. clinfo shows problems with this 21q2 driver.
s9000 with 6gb ram recognized incorrectly at ATI FirePro V (FireGL V) Graphics Adapter with 3gb ram. My app fails with error "unable to get host memory" or something like that as it expected 6gb.
s9100 with 12gb ram is recognized as AMD Radeon FirePro W8100. My app runs correctly and sees the 12gb.
These boards worked fine on Ubuntu 16.04 and an upgrade to 18.04 a year or so ago with an older firepro driver. I can't seem to get it to work with a clean install of 18i.04 and that 21q2 driver