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Description of problem:
ethtool 5.16 was just released, and compared to 5.10 (which is what ships currently in CentOS Stream 9) it includes a number of notables updates:
- configuring link lane count
- reading standard IEEE stats
- support for reading advanced SFP information (mostly for QSFP-DD)
- support configuring IRQ coalescing modes (EQE vs CQE)
plus a series of bug fixes and minor improvements.

ethtool is fully backwards compatible, so there's no issues on that front.

I've put up https://gitlab.com/redhat/centos-stream/rpms/ethtool/-/merge_requests/3 for this, but I don't have access to the lookaside so the CI is failing. Could you please upload ethtool-5.16.tar.xz and ethtool-5.16.tar.sign on my behalf? Thanks!

You can find the upstream sources at https://mirrors.edge.kernel.org/pub/software/network/ethtool/ethtool-5.16.tar.xz and https://mirrors.edge.kernel.org/pub/software/network/ethtool/ethtool-5.16.tar.sign (or just use spectool -g to grab them).

The ethtool related tests are passed on RHEL9 with ethtool-5.16-1 version.

test includes:
sanity_check: pass (selftest)
coalesce: pass
ethtool/sanity: pass (basic info)
ethtool/Regression: pass
hashkey: pass
multiqueue: pass
offload: pass
pause: pass
ring: pass

Therefore set VERIFIED.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: ethtool), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:4053