[22.04 FEAT] smc: Add User-defined EID (Enterprise ID) Support - kernel

@IBM Which is the target kernel this will land at?

------- Comment From <email address hidden> 2021-08-04 11:32 EDT-------
Feature will not make it in time for Impish/21.10, therefore moving to U22.04

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

------- Comment From <email address hidden> 2022-03-15 18:19 EDT-------
Upstream with kernel 5.16:

# fa0866625543 ("net/smc: add support for user defined EIDs")
# 11a26c59fc51 ("net/smc: keep static copy of system EID")
# 3c572145c24e ("net/smc: add generic netlink support for system EID")

Thanks for the commits.
I'm able to cherry pick them cleanly to jammy master-next.

A build of a patched jammy kernel 5.15.0-23.23~lp1929060 is currently ongoing at PPA:
https://launchpad.net/~fheimes/+archive/ubuntu/lp1929060/+packages
and is soon available for testing.

Patch request submitted:
https://lists.ubuntu.com/archives/kernel-team/2022-March/thread.html#128697
Updating status to 'In Progress'.

------- Comment From <email address hidden> 2022-03-16 13:22 EDT-------
(In reply to comment #11)
> Patch request submitted:
> https://lists.ubuntu.com/archives/kernel-team/2022-March/thread.html#128697
> Updating status to 'In Progress'.

Same as Bug 192590, pls don't just cherry-pick the certain patches mentioned above. All of the smc related patches till the date 2021-10-28 on the list (https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/net/smc?h=v5.16) should be taken for U22.04

Hi WEZH, well if commits are provided here, we expect that they make up the functionality described by the title and bug description, and can be taken as they are (cherry-picked) - and in case not a backport would be needed.

We cannot just (kind of blindly) pick all the commits up to a certain date - it's (very) unlikely that this will be acceptable by our kernel team (who reviews all submissions in detail).

What's required (for a patch here, or for an sru) is a minimal set of patches that make up a logical functional unit (like here at the title: "Add User-defined EID (Enterprise ID) Support").
The code also needs to be upstream accepted (that's the case here) and in case of s390x code, it needs to be signed-off by you (actually by IBM, at the commit level - as usual), pre-tested - there must be confidence about the patch set - and the willingness to help maintaining it.

Please notice that we discuss adding code to an upcoming LTS release that will need to be supported by up to 10 years.

This bug is awaiting verification that the linux-hwe-5.15/5.15.0-25.25~20.04.1 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-focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'.

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!

This feature was request for 22.04, hence the hwe kernel is more a fall out.
Hence updating tag to unblock the process.

This bug was fixed in the package linux - 5.15.0-25.25

---------------
linux (5.15.0-25.25) jammy; urgency=medium

  * jammy/linux: 5.15.0-25.25 -proposed tracker (LP: #1967146)

  * Miscellaneous Ubuntu changes
    - SAUCE: Revert "scsi: core: Reallocate device's budget map on queue depth
      change"

 -- Paolo Pisati <email address hidden> Wed, 30 Mar 2022 17:28:11 +0200