From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eidolon.nox.tf (eidolon.nox.tf [185.142.180.128]) (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 CEAA8385D7C for ; Mon, 13 Jul 2026 12:45:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.142.180.128 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783946761; cv=none; b=qhFXVE5Jvn9aCUex8cbXERBWioqs0VY7pPXR2KXQoxNU8mP3x+asZCGE1hGlkHty2XhZSOsttVv708CSq168S/CSNA50TKLFnAG6V83k9N+pUUMstEebK+cRY8BqM/DiuAsRO00KpDGk/+JrdwT09X6df+LDQt3ClEsylzLoPrI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783946761; c=relaxed/simple; bh=pWm0ChJyB8PHmvDlDUj89RkzlTNGHzp95bKBeqNbe+E=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Hyg5XR8vSt8blxXmJngo5MY0mxtcMIedvTpr0XbZKwJa3RksnrjRr5zmpRC10u6cV+429WZ25Q9VkthXZQkvgGpLys8SNBBlrqtAuL3GhZxNLFIQeQ8XVq7VhjjL+pJXsfROhKNwxw2TqhdDG6a3nX+JvxawYw2t3lSTFB4vub4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=diac24.net; spf=pass smtp.mailfrom=diac24.net; arc=none smtp.client-ip=185.142.180.128 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=diac24.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=diac24.net Received: from [2a07:2ec0:2185:8e:f1c9:c246:22b4:8471] (helo=alea) by eidolon.nox.tf with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wjG2j-00000001VUh-0q6p; Mon, 13 Jul 2026 14:45:53 +0200 Received: from equinox by alea with local (Exim 4.99.2) (envelope-from ) id 1wjG2h-00000001wUs-2y04; Mon, 13 Jul 2026 14:45:51 +0200 From: David 'equinox' Lamparter To: netdev@vger.kernel.org Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman Subject: [RFC net-next] llc: jumbo frame support Date: Mon, 13 Jul 2026 14:43:37 +0200 Message-ID: <20260713124545.462790-1-equinox@diac24.net> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Hi all, this is a somewhat random stab at 802.1AC / jumbo frame support for LLC. It kinda fell out as a side effect from poking at FRRouting's IS-IS socket use. Unfortunately even if this gets picked up right now, it'll be quite a bit of time before we can even consider using it there. (And it's not clear that it'll go that way.) Regardless, it's a tiny change & my messing around with things effectively got me the selftest too. The fact that AF_LLC can't be used in a network namespace is a bit of a problem though (haven't looked at how much work that would be, unlike the jumbo frame support this didn't fall out "for free"), and so is the fact that AF_LLC is on limited maintenance... It's an RFC. Comments appreciated. Cheers, equi (David) (waves from netdevconf in Rome)