gib/em driver problems?

[John Kennedy]

On Wed, Feb 03, 2021 at 06:40:50PM -0800, joe mcguckin wrote:
> I went out and purchased a PCIe ethernet card - it uses the em driver. The system 
> boots and it is em0.
> 
> It works fine in 100Mb mode, but in gigabit mode, it does not pass any traffic although ifconfig reports
> the card as active and that it has negotiated 1000BTX full duplex.
> 
> I have tried plugging both the igb and em cards into 2 different switches with the same result.

  When 13 was -current, I've had great experiences with em0 ethernet cards.
I don't have a physical box with 14 at the moment.  This one has been on
13 since 2020/10/26, the other one a while longer.

	em0: flags=8963<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500
		options=4810099<RXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,VLAN_HWFILTER,NOMAP>
		ether XXX
		inet XXX
		media: Ethernet autoselect (1000baseT <full-duplex>)
		status: active
		nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

  Between two motherboards, I think I have 3 of them (1 on peripheral card),
but the only one I can get at this minute identifies itself as:

	em0: <Intel(R) PRO/1000 Network Connection> mem 0xa3400000-0xa341ffff at device 31.6 on pci0

  Never had an issue with any of my switches, although I seem to have
mostly netgears at home.