On 7/1/23 18:26, Zack Newman wrote:
As Rachel pointed out, OpenBSD 7.3 does not work with the API of that NIC when the newest firmware is flashed. Not sure what the most recent version of firmware that has a working API is, but it is not a problem for me since autonegotiation works just fine. If you don't require very long runs and EMI is not an issue, then you should be fine with the copper solution.
Ah, I was unaware that autonegotiation was only a thing for Ethernet over twisted pair; so my setup did not rely on autonegotiation which makes it even less surprising that my setup works. 10 Gigabit Ethernet only works in full-duplex, and the SFP+ DAC Twinax cables only work for one speed (i.e., 10 Gbps). As a result, there is not much to "negotiate" anyway. In summary if 10GSFP+Cu is acceptable, then you shouldn't worry about the API not working on OpenBSD.
