According to the bug title this all should still land in 20.04? Please notice that 20.04 got already released, hence the development is over and the window to add new features is largely closed. Requesting changes to an already released Ubuntu version is now strictly regulated by the Stable Release Upgrade (SRU) process: https://wiki.ubuntu.com/StableReleaseUpdates Especially: https://wiki.ubuntu.com/StableReleaseUpdates#When shows that the SRU process is mainly for critical bugs, security issues and regressions.
Based on these SRU guidelines, the above patches now need to be strictly screened. For larger patch sets there is usually the HWE kernel available to get things in - or (especially when reading about Cloud) a custom kernel. Such larger modifications and updates should generally land when the target Ubuntu release is still in development. Next step is to have a look at the code and where it currently is (upstream) ... -- 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/1874056 Title: [UBUNTU 20.04] s390x/pci: enumerate pci functions per physical adapter Status in Ubuntu on IBM z Systems: Incomplete Status in linux package in Ubuntu: New Bug description: Today, the enumeration of PCI functions on s390x does not reflect which functions belongs to which physical adapter. Layout of a PCI function address on Linux: 0000:00:00.0 <root complex>:<bus>:<device>.<function> On s390x, each function is presented as individual root complex today, e.g.: PCHID 0100 VF1 0000:00:00.0 PCHID 0100 VF23 0001:00:00.0 PCHID 0200 VF1 0002:00:00.0 OCHID 0100 VF17 0003:00:00.0 On other platforms, the addresses correctly reflect the actual HW configuration. Some device drivers (mlx5 for Mellanox adapters) group functions of one physical adapter by checking which PCI functions have identical values for <root complex>:<bus>:<device>. We need to use the same enumeration scheme to achieve this functionality on s390x. In this case, the two physical functions of a Mellanox adapter need to get function number 0 and 1, and all virtual functions need to use the same <root complex>:<bus> numbers with function/device numbers counting up. Required result (example with 4 VFs per PF): PCHID 0100 PF 0 0000:00:00.0 PCHID 0100 PF 1 0000:00:00.1 PCHID 0100 PF 0 VF 0 0000:00:00.2 PCHID 0100 PF 0 VF 1 0000:00:00.3 PCHID 0100 PF 0 VF 2 0000:00:00.4 PCHID 0100 PF 0 VF 3 0000:00:00.5 PCHID 0100 PF 1 VF 0 0000:00:00.6 PCHID 0100 PF 1 VF 1 0000:00:00.7 PCHID 0100 PF 1 VF 2 0000:00:00.8 PCHID 0100 PF 1 VF 3 0000:00:00.9 PCHID 0200 PF 0 0001:00:00.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874056/+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
