From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C87F5C4321A for ; Tue, 11 Jun 2019 06:35:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BC002086D for ; Tue, 11 Jun 2019 06:35:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="Zjno7hnC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403857AbfFKGfd (ORCPT ); Tue, 11 Jun 2019 02:35:33 -0400 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:51437 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390485AbfFKGfd (ORCPT ); Tue, 11 Jun 2019 02:35:33 -0400 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id 068B62220D; Tue, 11 Jun 2019 02:35:32 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute3.internal (MEProxy); Tue, 11 Jun 2019 02:35:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm3; bh=iO5RKL gPJeU8X2BCAEweMziTPO0ad8sb6WVM6BcaVUY=; b=Zjno7hnC1LwA8CAvjAuBIS 9vmUwgpbQvFBDwKGUp5bxoQ0nrlwdSt1yD1p8MXFadoW2vCAqqdcFrTLfoIP2ngt N9TuBx0g/qDJ0x5BCrcLr1pOthe07IBVJbu81NXLfdIi28WYLQ/b4t2eDo1wf5jB 2t1zcVRhc/5iCkyNBpPk5DfHRyYs9pZfoAwKs3upsYpyWe3Pdb5p2SDgKBlexxfc 0+p2mNGA61opO75USkNSYIWc+M6yU7KdLA/KeboSTp5wjw197t5bt2t2pMENkDsg mHZ1G+Gyo8xbzjBsFLaYgAkIu4ncZjgpDi1lBiNYafx9V5VJR46tA5RW6cNraWiw == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgeduuddrudehfedguddtkecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfgh necuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmd enucfjughrpeffhffvuffkfhggtggujggfsehttdertddtredvnecuhfhrohhmpefkugho ucfutghhihhmmhgvlhcuoehiughoshgthhesihguohhstghhrdhorhhgqeenucfkphepud elfedrgeejrdduieehrddvhedunecurfgrrhgrmhepmhgrihhlfhhrohhmpehiughoshgt hhesihguohhstghhrdhorhhgnecuvehluhhsthgvrhfuihiivgeptd X-ME-Proxy: Received: from localhost (unknown [193.47.165.251]) by mail.messagingengine.com (Postfix) with ESMTPA id 7D96D380087; Tue, 11 Jun 2019 02:35:28 -0400 (EDT) Date: Tue, 11 Jun 2019 09:35:26 +0300 From: Ido Schimmel To: Andrew Lunn Cc: davem@davemloft.net, netdev@vger.kernel.org, amitc@mellanox.com, mlxsw@mellanox.com, Ido Schimmel Subject: Re: [PATCH net-next 3/3] selftests: mlxsw: Add speed and auto-negotiation test Message-ID: <20190611063526.GA6167@splinter> References: <20190610084045.6029-1-idosch@idosch.org> <20190610084045.6029-4-idosch@idosch.org> <20190610134820.GG8247@lunn.ch> <20190610135848.GB19495@splinter> <20190610140633.GI8247@lunn.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190610140633.GI8247@lunn.ch> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, Jun 10, 2019 at 04:06:33PM +0200, Andrew Lunn wrote: > On Mon, Jun 10, 2019 at 04:58:48PM +0300, Ido Schimmel wrote: > > On Mon, Jun 10, 2019 at 03:48:20PM +0200, Andrew Lunn wrote: > > > > + # Skip 56G because this speed isn't supported with autoneg off. > > > > + if [[ $speed == 56000 ]]; then > > > > + continue > > > > + fi > > > > > > Interesting. How is 56000 represented in ethtool? Listed in both > > > "Supported link modes" and "Advertised link modes"? > > > > Hi Andrew, > > > > Yes. We recently sent a patch to error out if autoneg is off: Commit > > 275e928f1911 ("mlxsw: spectrum: Prevent force of 56G"). > > I never get access to high speed links like this. Do you have a > reference to why 56G needs auto-neg? What makes it different to every > other link mode? Hi Andrew, I verified with PHY engineers and this limitation is specific to our hardware, so no external reference I can provide.