------- Comment From heinz-werner_se...@de.ibm.com 2020-05-19 05:21 EDT------- Technical issue: Mellanox CX5 port multi-pathing is broken on s390x due to non-standard topology of PCI IDs (phys. and virtual)
Details The Mellanox ConnectX5 Linux PCI driver (mlx5) implements a multi-path feature that can be used to combine multiple networking ports to improve performance and reliability. For that purpose, the mlx5 driver combines PCI functions based on topology information (the function number) as determined from their PCI ID. Currently the Linux on Z PCI bus does not reflect PCI topology information in the PCI ID. As a result, the mlx5 multi-path function cannot be activated. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874056 Title: [UBUNTU 20.04] s390x/pci: enumerate pci functions per physical adapter To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874056/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
