Enabling IOMMU for LSI 9211-8i passhtrough

[virtualfund]

Just built a new box that I want to use to pass through my HBA card to a TrueNAS VM (LSI 9211-8i). Having a heck of a time trying to get IOMMU activated.
Running an i5-12400 with a ASRock B660M Pro RS Intel B660 motherboard. VT-D is enabled.

Followed the guide here https://pve.proxmox.com/wiki/PCI_Passthrough, but when I run

dmesg | grep -e DMAR -e IOMMU

I get the following:

[ 0.010039] ACPI: DMAR 0x00000000653A6000 000088 (v01 INTEL EDK2 00000002 01000013)
[ 0.010091] ACPI: Reserving DMAR table memory at [mem 0x653a6000-0x653a6087]
[ 0.203211] DMAR: Host address width 39
[ 0.203213] DMAR: DRHD base: 0x000000fed90000 flags: 0x0
[ 0.203219] DMAR: dmar0: reg_base_addr fed90000 ver 4:0 cap 1c0000c40660462 ecap 29a00f0505e
[ 0.203223] DMAR: DRHD base: 0x000000fed91000 flags: 0x1
[ 0.203229] DMAR: dmar1: reg_base_addr fed91000 ver 5:0 cap d2008c40660462 ecap f050da
[ 0.203233] DMAR: RMRR base: 0x0000006c000000 end: 0x000000707fffff
[ 0.203238] DMAR-IR: IOAPIC id 2 under DRHD base 0xfed91000 IOMMU 1
[ 0.203240] DMAR-IR: HPET id 0 under DRHD base 0xfed91000
[ 0.203243] DMAR-IR: Queued invalidation will be enabled to support x2apic and Intr-remapping.
[ 0.204172] DMAR-IR: Enabled IRQ remapping in x2apic mode
[ 0.464485] pci 0000:00:02.0: DMAR: Skip IOMMU disabling for graphics

Trying to add a PCI device to the VM shows:

No IOMMU detected, please activate it.See Documentation for further information.

My grub looks like where I added "pcie_acs_override=downstream" as well :

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream,multifunction initcall_blacklist=sysfb_init video=simplefbff video=vesafbff video=efifbff video=vesaff disable_vga=1 vfio_iommu_type1.allow_unsafe_interrupts=1 kvm.ignore_msrs=1 pcie_acs_override=downstream modprobe.blacklist=radeon,nouveau,nvidia,nvidiafb,nvidia-gpu,snd_hda_intel,snd_hda_codec_hdmi,i915"

I was able to get this working on another proxmox node (running AMD) with no issues. Not sure why I'm having so many issues here.

 

[virtualfund]

Took some time, but was able to get it to work. Updated BIOS, enabled SR-IOV, also udpated my grub to just show the below.

GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt"