From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D6CC305692 for ; Wed, 24 Jun 2026 15:30:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782315023; cv=none; b=k1/PY3Y1zZtEmIGh84TjZxRXtulgJLnXu3xYpma2h0SCYuTXM2MFQ59rNL+OCo+I1n5OB4+Wll46fB6Q6x/KPxxuVGLkw9utZm3CN+jp0j5GQelSmcobaTwB5P/Z/udcbewO2bldzWN+CRj1upv8wpli+kQj6fRQYrpxVtYGJPU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782315023; c=relaxed/simple; bh=FkhzrnJ7xRFTflz9rMUJLq/spmv9XjoC+PUcQQZn+gQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type; b=KjnI5jkVGDIadjHVkUgojPuhC8rDAW4dFfACioDNLamcoeLHg0DZkELiCzOVRowQ/Z7Cv1pD7XI+4o9MRqIFO7mMRclL3v0zFQBJLuTeSIIKj3MN5IyR90P9cBElgJ6voK/P7MtQABqcgiUU8ebc+4RWwE5g7fMfuF15MaeUMn8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NLbwuSVN; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NLbwuSVN" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 245E41F000E9; Wed, 24 Jun 2026 15:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782315021; bh=RUcbvgmQZC5oKq764H4ENHHBEsmXURttubgifoaZF5I=; h=Date:From:To:Cc:Subject; b=NLbwuSVN9DmYytjs9Dlkf4Qe+kkPcBLajxXTBsLbn5Qx31QtNxtCPYLDyPWJBeHFJ JFb2RfEOQyUQ12log4GHmmRVXEG+qQo+ZkK9K9hvtUcRqrHoGG85jd/Tmr743v8gOn 2tIH6+riCZzChAXEHmmn2TPbF7u21DTzjD7w7W06dDdaWrsyuiK+/DJYxvNXlPOfxJ WWZHREoD9CuZ4TFc/1a/4oFRDBRixgNvObU8g9nQO0CYZCkj1njSwuw3gpdcDXUnnk +pX1BtDCtEaZDc8SgUW98qG0olHWj5JyOD3ULg+E6MKt38gMPwBll7zGDhlAJH8y2W I9hvA69j1nQlg== Date: Wed, 24 Jun 2026 08:30:20 -0700 From: Jakub Kicinski To: Adrian Pielech , Przemyslaw Kitszel Cc: "netdev@vger.kernel.org" , intel-wired-lan@lists.osuosl.org Subject: [TEST] Weird RSS state on ice Message-ID: <20260624083020.131a75fe@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Hi! I noticed in the netdev CI that the ice runner fails to run the toeplitz tests because of the RSS config. https://netdev-ci-results.intel.com/ice-results/net-next-hw-2026-06-23--00-00/ice-E810-CQ2/toeplitz.py/stdout I added some extra debug on the branch: net.lib.ynl.pyynl.lib.ynl.NlError: Netlink error: hash field config is not symmetric 16 304: Invalid argument {'bad-attr': '.input-xfrm'} 16, 304 means GTP flow, GTP_TEID field. So we are trying to disable symmetric RSS, but the field configuration contains TEID. The problem is this is an illegal configuration in the first place. We are _disabling_ symmetric RSS, but the kernel tries to make sure that both before and after states are correct (because the configuration involves multiple calls to the drivers and may fail half-way-thru). If the current config is illegal net/ethtool/ won't even let us restore it to sane state. So the question is how we got into this state. It does not happen on netdev machines. And on Intel machines it happens randomly around 30% of the time. I tried to look thru the driver code and I don't see how we could end up with such a config. Could y'all have a look and figure out / fix this? This has been happening for a while back but I was waiting until the merge window to poke at it first.