From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (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 1035820299B for ; Tue, 28 Oct 2025 00:58:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761613083; cv=none; b=dKHFKgV9eng1YYm719aXpxec0y1VOYYNRGuf8Wg80WOeTdvWirHft8L0tiLfuFlYlK0NModEa0ynFwNwLjDWN7PvAXSRtXCBnpA2PgjKJtlnMKbSBw2yJbKaaKIiccvvpwaNha5EWyxp1lmzGW/5kGvXchM8zT81EW0TZ0GeIgU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761613083; c=relaxed/simple; bh=Pu5kqYu+8gpM71WXhfUOgdtRRnjxllEImtX1gx/QT1Q=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=OL5JTfMhFlhxHgP9gE6+Ed+149/jMLhmQuhidk3WmIPuqqrj5/AmiKmHNLhgctSiK8KT4Y2RaRpNj9LTeqtzhN2VbA5oYUFu4mwFUbc4odGCAy88Y18SAWGTBLuK9Dyvj+GZjEd+IRflSfm85kRV3aa6noumI2Ul8fEekGFr+sQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=DnK6ADmm; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="DnK6ADmm" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=clpdrlOLu93rHtL/L9HiL9Is9OjufJxhxUPrU3Iy0XI=; b=DnK6ADmmspY4FAXcwDQ0Ysdv6z 3S4CPo2pihH5GZTA/oVF2y5e34bRyMhblv53WeQELRwkUO2BT5BmjkopFJJqVTZxkBuTjDsmNoWXa 6XPyCx0W3NSnUXXhnjbn+eZ7nLzC3iB7gQw9RFsMisCbk+om0sEEwp8A4bUacT7hTANRJoFNDfAAW +KjQqHc52E4TUodg2IqcIY1/cQ543DC8JYYgGT5fuySvCJFGxqVK3+VzqhYDJpjXGF5SYw8X8jlHp mp7PK+QbVNpLyXwif4OOcB3rHRfO7xpcd+7J7mOURBAHa3GZOsiCoIzMvOgzoSBslDz16MMQSadND JXrThypQ==; Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:49596) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vDY29-000000002YH-25XH; Tue, 28 Oct 2025 00:57:57 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vDY27-0000000064p-3UG9; Tue, 28 Oct 2025 00:57:55 +0000 Date: Tue, 28 Oct 2025 00:57:55 +0000 From: "Russell King (Oracle)" To: Laurent Pinchart Cc: Oleksij Rempel , Emanuele Ghidoli , devicetree@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, Daniel Scally , Kieran Bingham , Stefan Klug , Conor Dooley , Fabio Estevam , Krzysztof Kozlowski , Pengutronix Kernel Team , Rob Herring , Sascha Hauer , Shawn Guo Subject: Re: [PATCH] arm64: dts: imx8mp-debix-model-a: Disable EEE for 1000T Message-ID: References: <20251026122905.29028-1-laurent.pinchart@ideasonboard.com> <20251027234648.GC24987@pendragon.ideasonboard.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251027234648.GC24987@pendragon.ideasonboard.com> Sender: Russell King (Oracle) On Tue, Oct 28, 2025 at 01:46:48AM +0200, Laurent Pinchart wrote: > On Mon, Oct 27, 2025 at 03:13:51PM +0000, Russell King (Oracle) wrote: > > On Sun, Oct 26, 2025 at 02:29:04PM +0200, Laurent Pinchart wrote: > > > Energy Efficient Ethernet (EEE) is broken at least for 1000T on the EQOS > > > (DWMAC) interface. When connected to an EEE-enabled peer, the ethernet > > > devices produces an interrupts storm. Disable EEE support to fix it. > > > > We've finally got to the bottom of what's going on here. Please try > > this patch (it's building locally, but will take some time because > > I'd wound the tree back to 6.13 and 6.14, so it's going to be a full > > rebuild.) Thus, there may be compile bugs remaining. > > I've applied it on top of > > I've started with a branch based on v6.18-rc3 plus "[PATCH net-next 0/5] > net: stmmac: more cleanups" ([1]) and "[PATCH net-next v2 0/6] net: add > phylink managed WoL and convert stmmac" ([2]) to make the patch apply > cleanly. > > [1] https://lore.kernel.org/all/aO_HIwT_YvxkDS8D@shell.armlinux.org.uk/ > [2] https://lore.kernel.org/all/aPnyW54J80h9DmhB@shell.armlinux.org.uk/ > > The base branch exhibits the interrupt storm issue. The patch > unfortunately doesn't fix it. So it's highly unlikely that your problem is the same as Emanuele's. Do you know when the interrupt storm behaviour started? If not, I'd suggest testing 6.13 and 6.14 as a starting point to see whether the phylink-managed EEE conversion is involved. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!