This bug is awaiting verification that the linux/5.11.0-39.43 kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed-hirsute' to 'verification-done-hirsute'. If the problem still exists, change the tag 'verification-needed-hirsute' to 'verification-failed-hirsute'.
If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-hirsute -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1945707 Title: BCM57800 SRIOV bug causes interfaces to disappear Status in linux package in Ubuntu: In Progress Status in linux source package in Bionic: Fix Committed Status in linux source package in Focal: Fix Committed Status in linux source package in Hirsute: Fix Committed Bug description: [Impact] bnx2x driver won't add all devices ports/interfaces. [Test case] Boot system with bnx2x device and verify all ports/interfaces have been added. [Potential regression] bnx2x devices won't be properly probed. Devices won't be added or SR-IOV won't be correctly supported. --- Original Description --- Works with focal kernel 5.4.0-80 Broken with focal kernel 5.4.0-88 On a Dell R720 with the BCM57800 based 1/10 Gigabit Integrated Network cards Kernel 5.11.22-3 causes half of the network interfaces to disappear specifically the 1gb ports. Commands like "ip link show" and "dmesg" no longer show eno3 and eno4 nor any other interface name for these ports. I've read the note in the release notes and this does not appear to be a case of the interface changing names, the 3rd and 4th interface don't show up at all. The card is based on the BCM57800 chipset and has two SFP+ and two gigabit ports on the same card. Commands like "ip link show" no longer show ports 3 and 4. "lspci" still shows four items. dmesg only shows the first two interfaces. This problem seems to be known upstream, and seems to be a regression. More information at https://bugzilla.proxmox.com/show_bug.cgi?id=3558 This is being seen at a customer during an openstack install. It would be appreciated if a workaround could be provided or the fix could be prioritized. Using standard Focal 20.04 LTS kernel (it installs ok with the working kernel then upgrades to the non-working one -- this is done through maas and is difficult to control). Tested other kernels like hwe-* and all seem to be affected too. Client does not want to disable SRIOV on whole card and also cannot disable only ports 3/4 (the bios will not allow it). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1945707/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
