Chelsio S310E-CR not seen in FreeNAS

[BorisStarr]

From what I've read, this card Chelsio S310E-CR should just work and be recognized, but I don't see it available on my freenas system. I am new to all of this, so would really appreciate some help in troubleshooting this.

My motherboard is a Supermicro A1SAi-2750F and the Chelsio is in the only PCIe slot it has.

My understanding is that this card would use the cxgb driver which appears to be loaded. When I do a
kldload cxgb it says:
kldload: can't load cxgb: module already loaded or in kernel

 

[Mirfster]

kldload: can't load cxgb: module already loaded or in kernel

That means it is already running/loaded. Out of curiosity, what exactly is it that makes you think that it is not there and available?

 

[BorisStarr]

Not available because it did not show up as one of the network adapters when I did a "ifconfig"

Got my answer:
In the Supermicro BIOS, under PCIe/PCI/PNP settings, there is this option: "PCIe Slot 1 Bifurcation" ... the default is "[Auto]" or one may choose "[X4X4]".

Choosing "[X4X4]" now allows the Chelsio nic to be seen by the system and FreeNAS recognizes it and I can configure it.

Thanks!