*** This bug is a duplicate of bug 1893956 ***
https://bugs.launchpad.net/bugs/1893956
This appears to still be an issue on the latest 5.4.0-99-generic kernel.
I'm using a 2 port 10GSFP+ card. The PCI driver isn't bound according to
lspci, and the interfaces don't show up in dmesg or "ip link".
# lspci -nnk
31:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection X722
[8086:37cc] (rev 09)
DeviceName: 10Gb Ethernet1
Subsystem: Lenovo Ethernet Connection X722 [17aa:4021]
# modinfo i40e
...
version: 2.8.20-k
description: Intel(R) Ethernet Connection XL710 Network Driver
...
vermagic: 5.4.0-99-generic SMP mod_unload modversions
Strangely the ports don't even come up with the latest 5.13.0-28 kernel.
# modinfo i40e
(no version)
vermagic: 5.13.0-28-generic SMP mod_unload modversions
The card works perfectly in another distribution with the i40e driver,
but that's running a 4.18 kernel.
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https://bugs.launchpad.net/bugs/1887703
Title:
[Regression] 5.4 is not identifying all ports on Intel x710-TM4 10GbE
controller
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Focal:
Confirmed
Bug description:
[IMPACT]
The Intel x710-TM4 is one of the latest 10GbE controllers from intel
using the i40e driver. This particular 4 port comes in a 2x2
arrangement: 2x SFP+ and 2x RJ-45. This card is enabled in 5.4 via
the inbox version of the i40e driver, and hwinfo does show both sides
of the card but the kernel only sees the two SFP+ ports and cannot
address or use the two copper ports.
This is currently blocking certification for one of our hardware
partners.
After some investigation we see this works in a more recent version of
the driver. Intel suggests the commit in FIXES from 5.5 should make
this work.
This is a regression from the i40e driver in Bionic (5.3 HWE) that,
per the tester, does show all four ports.
[FIXES]
3df5b9a6a9ec3c1e4431bf1db3426b54dc92dd91 i40e: enable X710 support
I have a branch here:
https://code.launchpad.net/~bladernr/ubuntu/+source/linux/+git/focal/+ref/1887703-i40e-enable-x710
[TESTING]
Boot system, verify four ports are visible and can be addressed and pass data.
[IMPACT]
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