netdev - Re: [PATCH net 4/4] selftests: drv-net: rss_ctx: test RSS contexts persist after ifdown/up

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Message-ID: <CALs4sv3SE9TSQBBaRaSOXrUjpO0+V7t6gM62qLKhrZ2ET+dG+g@mail.gmail.com>
Date: Thu, 5 Feb 2026 11:11:58 +0530
From: Pavan Chebbi <pavan.chebbi@...adcom.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: Michael Chan <michael.chan@...adcom.com>, davem@...emloft.net, netdev@...r.kernel.org, 
	edumazet@...gle.com, pabeni@...hat.com, andrew+netdev@...n.ch, 
	andrew.gospodarek@...adcom.com
Subject: Re: [PATCH net 4/4] selftests: drv-net: rss_ctx: test RSS contexts
 persist after ifdown/up

On Thu, Feb 5, 2026 at 7:39 AM Jakub Kicinski <kuba@...nel.org> wrote:
>
> On Wed, 4 Feb 2026 21:45:12 +0530 Pavan Chebbi wrote:
> > > > +
> > > > +    for ctx_id in ctx_ids:
> > > > +        try:
> > > > +            data = get_rss(cfg, context=ctx_id)
> > > > +            _rss_key_check(cfg, data=data, context=ctx_id)
> > > > +            persisted_contexts.append(ctx_id)
> > > > +        except CmdExitFailure:
> > > > +            missing_contexts.append(ctx_id)
> > > > +            ksft_pr(f"Context {ctx_id} is missing after ifup")
> > >
> > > You can use netlink to get them all
> > >
> > > ctxs = cfg.ethnl.rss_get({}, dump=True)
> >
> > Jakub, maybe it's a rookie question but I am having trouble getting
> > the netlink call to work.
> > Not sure if my analysis is right but it looks like I don't have the
> > right schema..
> > It appears like the decode does not ignore unsupported ethnl options?
> > I always get the error:
> >
> > # Error decoding 'input-xfrm' from 'rss'
> >
> > with the below call stack:
> >
> > # # Exception| Traceback (most recent call last):
> > # # Exception|   File "/tmp/ksft-net-drv/net/lib/py/ksft.py", line
> > 319, in ksft_run
> > # # Exception|     func(*args)
> > # # Exception|   File "/tmp/ksft-net-drv/drivers/net/hw/./rss_ctx.py",
> > line 395, in test_rss_context_dump
> > # # Exception|     ctxs = cfg.ethnl.rss_get({}, dump=True)
> > # # Exception|   File
> > "/tmp/ksft-net-drv/net/lib/ynl/pyynl/lib/ynl.py", line 1159, in _op
> > # # Exception|     return self._ops(ops)[0]
> > # # Exception|   File
> > "/tmp/ksft-net-drv/net/lib/ynl/pyynl/lib/ynl.py", line 1146, in _ops
> > # # Exception|     rsp_msg = self._decode(decoded.raw_attrs, op.attr_set.name)
> > # # Exception|   File
> > "/tmp/ksft-net-drv/net/lib/ynl/pyynl/lib/ynl.py", line 814, in _decode
> > # # Exception|     decoded = self._decode_enum(decoded, attr_spec)
> > # # Exception|   File
> > "/tmp/ksft-net-drv/net/lib/ynl/pyynl/lib/ynl.py", line 672, in
> > _decode_enum
> > # # Exception|     value.add(self._get_enum_or_unknown(enum, i))
> > # # Exception|   File
> > "/tmp/ksft-net-drv/net/lib/ynl/pyynl/lib/ynl.py", line 662, in
> > _get_enum_or_unknown
> > # # Exception|     raise error
> > # # Exception|   File
> > "/tmp/ksft-net-drv/net/lib/ynl/pyynl/lib/ynl.py", line 657, in
> > _get_enum_or_unknown
> > # # Exception|     name = enum.entries_by_val[raw].name
> > # # Exception| KeyError: 2
> >
> > Do you think I am missing some config?
>
> Ah! I think you run into what I recently fixed in net.
> Could you try with 1c172febdf065375 cherry-picked to your tree?

Yes, that fixed it! Thanks

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