On 5/2/2024 10:31 PM, Stephen Hemminger wrote: > There were multiple issues in the RSS queue support in the TAP > driver. This required extensive rework of the BPF support. > > Change the BPF loading to use bpftool to > create a skeleton header file, and load with libbpf. > The BPF is always compiled from source so less chance that > source and instructions diverge. Also resolves issue where > libbpf and source get out of sync. The program > is only loaded once, so if multiple rules are created > only one BPF program is loaded in kernel. > > The new BPF program only needs a single action. > No need for action and re-classification step. > > It also fixes the missing bits from the original. > - supports setting RSS key per flow > - level of hash can be L3 or L3/L4. > > Bugzilla ID: 1329 > > Signed-off-by: Stephen Hemminger <step...@networkplumber.org> >
The libbpf version in my Ubuntu box, installed with package manager, is 'libbpf.so.0.5.0', so it doesn't satisfy the requirement and bpf support is not compiled for me. @Christian, 'libbpf.so.0.5.0'seems old, it is from 2021, do you know is there a reason Ubuntu stick to this version? And can we expect an update soon? @Patric, I assume test environment also doesn't have 'libbpf', version: '>= 1.0' which we need to test this feature. Is it possible to update test environment to justify this dependency? I think we need to verify at least build (with and without dependency met) for the set.
