decent 40G network adapters

[Edward Tomasz Napierała]

On 0118T1448, Eugene M. Zheganin wrote:
> Hi.
> 
> Could someone recommend a decent 40Gbit adapter that are proven to be
> working under FreeBSD ? The intended purpose - iSCSI traffic, not much
> pps, but rates definitely above 10G. I've tried Supermicro-manufactured
> Intel XL710 ones (two boards, different servers - same sad story:
> packets loss, server unresponsive, spikes), seems like they have a
> problem in a driver (or firmware), and though Intel support states this
> is because the Supermicro tampered with the adapter, I'm still
> suspicious about ixl(4). I've also seen in the ML a guy reported the
> exact same problem with ixl(4) as I have found.
> 
> So, what would you say ? Chelsio ?

I'd say Chelsio; it's very well supported, it's actively involved
in FreeBSD development, and there's hardware-specific iSCSI offload
for it (cxgbei).