From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gj1FG-00089n-PE for barebox@lists.infradead.org; Mon, 14 Jan 2019 12:21:36 +0000 Date: Mon, 14 Jan 2019 13:21:30 +0100 From: Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= Message-ID: <20190114122130.dsfqagod6rrpqv2x@pengutronix.de> References: <20180918052122.12248-1-andrew.smirnov@gmail.com> <20180918052122.12248-8-andrew.smirnov@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20180918052122.12248-8-andrew.smirnov@gmail.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH 7/7] net: fec_imx: Do not use DMA coherent memory for Rx buffers To: Andrey Smirnov Cc: barebox@lists.infradead.org Hello, On Mon, Sep 17, 2018 at 10:21:22PM -0700, Andrey Smirnov wrote: > Trying to do unaligned access of coherent memory on AArch64 will lead > to an abort and some parts of our IP stack will do exactly that with > received packet buffer by using memcpy() to extracts parts of it. > = > Convert the driver to use regular memory for received data buffers to > prevent the issue from happening. I didn't spend time yet to debug, but this commit is pointed out to break nfs booting on an mx28evk board. Maybe someone spots the obvious problem before I come around to fix this. Best regards Uwe -- = Pengutronix e.K. | Uwe Kleine-K=F6nig | Industrial Linux Solutions | http://www.pengutronix.de/ | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox