From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Schwebel Subject: Re: [PATCH v2 5/5] can: flexcan: Add support for non RX-FIFO mode Date: Fri, 11 Dec 2015 17:01:04 +0100 Message-ID: <20151211160104.GU30206@pengutronix.de> References: <1431603215-25546-1-git-send-email-bhupesh.sharma@freescale.com> <1431603215-25546-6-git-send-email-bhupesh.sharma@freescale.com> <5554C244.80809@pengutronix.de> <56696DC8.8020708@pengutronix.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from metis.ext.4.pengutronix.de ([92.198.50.35]:54481 "EHLO metis.ext.4.pengutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751547AbbLKQBH (ORCPT ); Fri, 11 Dec 2015 11:01:07 -0500 Content-Disposition: inline In-Reply-To: Sender: linux-can-owner@vger.kernel.org List-ID: To: Sharma Bhupesh Cc: Marc Kleine-Budde , "arnd@arndb.de" , "linux-can@vger.kernel.org" , "bhupesh.linux@gmail.com" , "linux-arm-kernel@lists.infradead.org" , Arora Sakar On Thu, Dec 10, 2015 at 12:22:55PM +0000, Sharma Bhupesh wrote: > > If we have to rely on the timestamps the next logical step is to add > > sorting by timestamp to the rx-fifo implementation. I'll send a > > patch series of the current state. > > With my current v3, I see no rx-frame ordering issues atleast on > LS1021A. Marc can post our testcases here on the list (maybe with the description from the service request); perhaps this can clarify the issues. > I can ask internally about more details on the "SR# 1-4074792564 : CAN > Ordering Issues". That would be quite helpful, thanks! Understanding the root cause of the issue is often a good start, maybe there is an option for a software workaround. rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | From mboxrd@z Thu Jan 1 00:00:00 1970 From: r.schwebel@pengutronix.de (Robert Schwebel) Date: Fri, 11 Dec 2015 17:01:04 +0100 Subject: [PATCH v2 5/5] can: flexcan: Add support for non RX-FIFO mode In-Reply-To: References: <1431603215-25546-1-git-send-email-bhupesh.sharma@freescale.com> <1431603215-25546-6-git-send-email-bhupesh.sharma@freescale.com> <5554C244.80809@pengutronix.de> <56696DC8.8020708@pengutronix.de> Message-ID: <20151211160104.GU30206@pengutronix.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Dec 10, 2015 at 12:22:55PM +0000, Sharma Bhupesh wrote: > > If we have to rely on the timestamps the next logical step is to add > > sorting by timestamp to the rx-fifo implementation. I'll send a > > patch series of the current state. > > With my current v3, I see no rx-frame ordering issues atleast on > LS1021A. Marc can post our testcases here on the list (maybe with the description from the service request); perhaps this can clarify the issues. > I can ask internally about more details on the "SR# 1-4074792564 : CAN > Ordering Issues". That would be quite helpful, thanks! Understanding the root cause of the issue is often a good start, maybe there is an option for a software workaround. rsc -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |