Patch request submitted:
https://lists.ubuntu.com/archives/kernel-team/2022-September/thread.html#133176
Updating status to 'In Progress'.
In addition test builds in PPA were done for all major architectures
with a kinetic master-next kernel that incl. the patches mentioned
above.
** Changed in: linux (Ubuntu)
Assignee: Skipper Bug Screeners (skipper-screen-team) => Canonical Kernel
Team (canonical-kernel-team)
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: ubuntu-z-systems
Status: New => In Progress
** Information type changed from Private to Public
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https://bugs.launchpad.net/bugs/1959542
Title:
[22.10 FEAT] [IO2201] Independent Usage of Secondary Physical Function
Status in Ubuntu on IBM z Systems:
In Progress
Status in linux package in Ubuntu:
In Progress
Bug description:
Title: Independent Usage of Secondary Physical Function"
Description:
"This feature adds the ability for a Linux running in LPAR to use the
Physical Function (PF) associated with the second port of a ConnectX-5/6 card
independent of that of the first port.
Prior to this feature, if the secondary PF was attached to an LPAR without
also attaching the primary PF, no PCI function would be visible in Linux. The
function would instead remain
in a hidden and disabled state. Conversely it has always been possible to use
the primary PF without attaching the secondary PF. This existing behavior is
confusing and needlessly
restricts flexible usage of these powerful network cards. The new behavior of
allowing independent usage is also in accordance with the PCI SR-IOV
specification which explicitly
defines the dependencies between PCI functions in the Dependency Link field
which is still honored and for ConnectX-5/6 cards allows this independent
usage."
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