Re: ixl(4) troubles

ever since Intel brought out the 710  nic only Intel optical SFPs worked with it, however they didn't enforce this with twinax cables. 

Then alternative optical module vendors started selling optical SFPs which mimicked Intel, we use FlexOptix at work, but there are many other vendors who sell Intel compatible optics.

On October 4, 2024 10:09:05 AM MDT, Zack Newman <zack@philomathiclife.com> wrote:

I've already upgraded the NVM firmware on the Intel card to the
latest, no change in behavior

Are you sure about that? Your dmesg says differently:

ixl0 at pci1 dev 0 function 0 "Intel X710 SFP+" rev 0x02: port 0,
FW 6.0.48442 API 1.7, msix, 8 queues, address 40:a6:b7:b3:4b:28

In contrast my dmegs outputs:

ixl0 at pci1 dev 0 function 0 "Intel X710 SFP+" rev 0x02: port 0,
FW 9.152.77998 API 1.15, msix, 4 queues, address 40:a6:b7:b5:4a:c4

According to Intel, your firmware is more than 6 years old:
https://www.intel.com/content/www/us/en/download/18639/28335/non-volatile-memory-nvm-update-utility-for-intel-ethernet-adapters-700-series-efi.html

That's to not suggest that's the reason mind you. I've been issue-free
with my Intel X710-DA2 using a customized 10G SFP+ passive direct attach
copper twinax cable from FS with the other end connected to a Juniper
EX2300-24MP switch.