Cisco 12G SAS RAID support (FreeBSD 12.1-RELEASE) ?

[Miroslav Lachman]

Chris Ross wrote on 11/05/2019 19:34:
> Hello.  I have a Cisco UCS C220-M5 with a RAID controller.  It calls itself
> "Cisco 12G Modular Raid Controller with 2GB cache", PPID UCSC-RAID-M5.
> Looking at the CIMC, it shows the PCI vendor/device ids 1000:0014, which
> looks to be an LSI MegaRAID Tri-Mode SAS3516.  It looks like this should
> be supported by the mpr(4) driver, but it doesn't seem to recognize it
> at boot time.  Is there some magic I need to perform for the 12.1-RELEASE
> image ISO boot to get this driver loaded, or will some internal changes
> be needed to support this particular part due to quirks?
> 
> Let me know any information I can provide that will help diagnose.  Thank
> you.

Do you have mpr_load="YES" in loader.conf?
Or for ISO booting you can manually load kernel modules at boot prompt.

https://www.freebsd.org/cgi/man.cgi?query=loader%288%29

On a boot prompt:
    load [-t type] file ...
    boot

Miroslav Lachman