From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH] net: ethernet: ti: cpsw: disable mq feature for "AM33xx ES1.0" devices Date: Thu, 17 May 2018 15:12:23 -0400 (EDT) Message-ID: <20180517.151223.1480085511338001366.davem@davemloft.net> References: <20180516222145.26877-1-ivan.khoronzhuk@linaro.org> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: grygorii.strashko@ti.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org To: ivan.khoronzhuk@linaro.org Return-path: In-Reply-To: <20180516222145.26877-1-ivan.khoronzhuk@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Ivan Khoronzhuk Date: Thu, 17 May 2018 01:21:45 +0300 > The early versions of am33xx devices, related to ES1.0 SoC revision > have errata limiting mq support. That's the same errata as > commit 7da1160002f1 ("drivers: net: cpsw: add am335x errata workarround for > interrutps") > > AM33xx Errata [1] Advisory 1.0.9 > http://www.ti.com/lit/er/sprz360f/sprz360f.pdf > > After additional investigation were found that drivers w/a is > propagated on all AM33xx SoCs and on DM814x. But the errata exists > only for ES1.0 of AM33xx family, limiting mq support for revisions > after ES1.0. So, disable mq support only for related SoCs and use > separate polls for revisions allowing mq. > > Signed-off-by: Ivan Khoronzhuk > --- > > Based on net-next/master Patch applied to net-next, thank you.