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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EEEA2C02198 for ; Sat, 8 Feb 2025 03:35:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=H1SG2C5I2TgnvoqStIRUNb2mF/vOzm6Bxai2vAmWHOg=; b=Yb9PF0xCQq6EJaSsCh7rC+yMcG HWfncCPb0vwWA2IY/NLymNUkDwtGEbikVpfz9sNwLmweyG4tKU/rDcVQcrqsMTAyO17LSeLOd7+1s 8OJ9Xd9sa9GYTS+4+DjMf0eYJFsd3aB4MMd3k4HG25tEiQxWod1DVxBmLw68nyGDYLKRoK0+3Z1HP twcQbgHaTKRJ8SjgtSXWB2I8jaWYG/4fSc7acnZk2NXNZVhXVLR/QVsZeBiG3Rg0IyDYYd9sB0zgO 1L7Ty+EAubqetI3o3uNFVlO+RP2LWyVQBRIRWGHmIs33YAwdHdnXlyPOUnzhl+Njq97uESA4qaa05 Cvl06gAw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tgbck-0000000C1RB-3Ad3; Sat, 08 Feb 2025 03:35:18 +0000 Received: from mgamail.intel.com ([198.175.65.21]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tgbbL-0000000C1FG-3HDp for linux-arm-kernel@lists.infradead.org; Sat, 08 Feb 2025 03:33:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1738985632; x=1770521632; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=E4ef/ftjH8Y83ESfkZ/ek4OwMIc3mSgBksj42G9pEyE=; b=Rmj+Olqlkl4daXgmiDzoy7Slo4PX3jDgiNYhOr8eb1P+dd6o2IJPI0zE 6uLxvc2UuK9AaVM+cn4VDu06ogNXEtefVytyZQE8A57MXojrkqPr6qfVs UhlWJR3yRmr+yCOFYP+xOSBadRSvxqo+am4vaYRGKwYRclJ1q/ns90aBK y5t/STxtFxhDCPXMEam8P+OOSGSXU+hV9ZxMi/LkcRlJHVwx8t6KmBAzD +ZMEtGs0lcqFGUSqdz9AMMHX81P091//On623gYGoo21nHxtkuSUv5fPD QZDP+IF5kRB21fWut0fgUCQ+lNzHi4JD1kRqtyGBXdRD17yi9CNRcVBPf g==; X-CSE-ConnectionGUID: 6w1h+b8UQhuH/A3Eljzceg== X-CSE-MsgGUID: /TqxbaIRS0WF0o25P2lpOg== X-IronPort-AV: E=McAfee;i="6700,10204,11338"; a="39541416" X-IronPort-AV: E=Sophos;i="6.13,268,1732608000"; d="scan'208";a="39541416" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Feb 2025 19:33:48 -0800 X-CSE-ConnectionGUID: KfrjFuMpRnayDLYzhLb9nA== X-CSE-MsgGUID: nahwQkBJSY+cDoGI/mkrIA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.13,268,1732608000"; d="scan'208";a="111621205" Received: from choongyo-mobl.gar.corp.intel.com (HELO [10.247.21.123]) ([10.247.21.123]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Feb 2025 19:33:41 -0800 Message-ID: <71887246-d30f-4134-8c6d-b379477b2457@linux.intel.com> Date: Sat, 8 Feb 2025 11:33:38 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v7 2/7] net: pcs: xpcs: re-initiate clause 37 Auto-negotiation To: Andrew Lunn Cc: "Russell King (Oracle)" , Simon Horman , Jose Abreu , Jose Abreu , David E Box , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H . Peter Anvin" , Rajneesh Bhardwaj , David E Box , Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Jiawen Wu , Mengyuan Lou , Heiner Kallweit , Hans de Goede , =?UTF-8?Q?Ilpo_J=C3=A4rvinen?= , Richard Cochran , Serge Semin , x86@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org References: <20250206131859.2960543-1-yong.liang.choong@linux.intel.com> <20250206131859.2960543-3-yong.liang.choong@linux.intel.com> <564ede5d-9f53-40be-9305-63f63b384e15@linux.intel.com> <12e86fbe-9515-4b81-951c-8bf86e2939d6@lunn.ch> Content-Language: en-US From: Choong Yong Liang In-Reply-To: <12e86fbe-9515-4b81-951c-8bf86e2939d6@lunn.ch> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250207_193351_908953_1E311E5F X-CRM114-Status: GOOD ( 15.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 7/2/2025 9:32 pm, Andrew Lunn wrote: >> Good point. I cannot find this scenario in the datasheet. Please allow me >> some time to test this scenario. I will update you with the results. > > By data sheet, do you mean documentation from Synopsis, or is this an > internal document? Assuming the hardware engineers have not hacked up > the Synopsis IP too much, the Synopsis documentation is probably the > most accurate you have. > >>> What about 1000BASE-X when AN is enabled or disabled and then switching >>> to SGMII? >>> >> According to the datasheet, a soft reset is required. > > Do you know if this is specific to Intels integration of the Synopsis > IP, or this is part of the core licensed IP? > > We need to understand when we need a quirk because intel did something > odd, or it is part of the licensed IP and should happen for all > devices using the IP. > > Andrew > Hi Andrew, Thank you for your questions. Just to clarify, when I mention the "datasheet," I am referring to the documentation from "Synopsis - DesignWare Cores Ethernet PCS" and not specific to Intel's documentation.