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=-8.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C9868C43613 for ; Thu, 20 Jun 2019 18:17:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A97CA21537 for ; Thu, 20 Jun 2019 18:17:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561054627; bh=xGNYuxBoRLrnvn4mE3DiUTBKZJAaYDWRQOIzTW+y1wU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Ii2p2RIBbFxwdNZ2XPJtiv/S91oq4aEY8gq9bbLQSgVXCI5cYyC7QwdEoJ39n8ESb DuErl7kvMZys4MYkfaJIF03F7ZU83DiA9TFMzd2BAG5CBW3sp+055sgPylaejRx7uP rHe8QXoK85GjP5+hvxKkbn6e/ENPKAIhyaY6/e3k= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729181AbfFTSRF (ORCPT ); Thu, 20 Jun 2019 14:17:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:46260 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729870AbfFTSRB (ORCPT ); Thu, 20 Jun 2019 14:17:01 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3A66A2082C; Thu, 20 Jun 2019 18:17:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1561054620; bh=xGNYuxBoRLrnvn4mE3DiUTBKZJAaYDWRQOIzTW+y1wU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QSNpVZwvJ7mM0a8/QPYuOLzNLHjYUnAVv4qwYIfV1k0kLHAEejJFPh7SqajULc8fw XoJIe+h5rClqbfDKFevx5ppPQa9FfWRFnzzJdmkSivl5y6RfOBDOtNsuvyyXdyrVvk le7GZuqSVzduuXSAaUDqFrbdQBAqggHjYO5YgzNw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Amit Cohen , Jiri Pirko , Ido Schimmel , "David S. Miller" , Sasha Levin Subject: [PATCH 5.1 92/98] mlxsw: spectrum: Prevent force of 56G Date: Thu, 20 Jun 2019 19:57:59 +0200 Message-Id: <20190620174354.016514010@linuxfoundation.org> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20190620174349.443386789@linuxfoundation.org> References: <20190620174349.443386789@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [ Upstream commit 275e928f19117d22f6d26dee94548baf4041b773 ] Force of 56G is not supported by hardware in Ethernet devices. This configuration fails with a bad parameter error from firmware. Add check of this case. Instead of trying to set 56G with autoneg off, return a meaningful error. Fixes: 56ade8fe3fe1 ("mlxsw: spectrum: Add initial support for Spectrum ASIC") Signed-off-by: Amit Cohen Acked-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index 6b8aa3761899..f4acb38569e1 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -3110,6 +3110,10 @@ mlxsw_sp_port_set_link_ksettings(struct net_device *dev, ops->reg_ptys_eth_unpack(mlxsw_sp, ptys_pl, ð_proto_cap, NULL, NULL); autoneg = cmd->base.autoneg == AUTONEG_ENABLE; + if (!autoneg && cmd->base.speed == SPEED_56000) { + netdev_err(dev, "56G not supported with autoneg off\n"); + return -EINVAL; + } eth_proto_new = autoneg ? ops->to_ptys_advert_link(mlxsw_sp, cmd) : ops->to_ptys_speed(mlxsw_sp, cmd->base.speed); -- 2.20.1