Packet loss when rx/tx queue > 8

[michael-yuji]

When tx/rx queue > 8, the driver seems to "eat" some packets. On the OS and tcpdump it shows the packets has been sent out, but in fact it doesn't.

Since iflib by default will allocate n = core count tx and rx queues, the current workaround is to add the following lines to /boot/loader.conf to override ntxq and nrxq

dev.aq.X.iflib.override_nrxqs=8
dev.aq.X.iflib.override_ntxqs=8

[jm-mikkelsen]

This workaround made my device usable on 13.1.