From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jose Abreu Subject: Re: STMMAC driver with TSO enabled issue Date: Thu, 24 May 2018 10:31:48 +0100 Message-ID: <06ec3e2e-c41a-5f19-ffd8-51c5453d586b@synopsys.com> References: <89c0a735-9e34-89c6-7692-579e48dadaa6@nvidia.com> <77c98a42-195f-b597-711d-8c2e8b55f266@synopsys.com> <5309d046-fc6f-bc63-06dc-6cc98276dce4@nvidia.com> <77ff3baf-fec5-f0a2-9fdf-caa63d4944d0@synopsys.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit To: Bhadram Varka , Jose Abreu , "netdev@vger.kernel.org" , Joao Pinto Return-path: Received: from smtprelay.synopsys.com ([198.182.37.59]:58395 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965831AbeEXJb4 (ORCPT ); Thu, 24 May 2018 05:31:56 -0400 Received: from mailhost.synopsys.com (mailhost3.synopsys.com [10.12.238.238]) by smtprelay.synopsys.com (Postfix) with ESMTP id B9F911E0433 for ; Thu, 24 May 2018 11:31:54 +0200 (CEST) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Hi Bhadram, On 24-05-2018 06:58, Bhadram Varka wrote: > > After some time if check Tx descriptor status - then I see only > below > > [..] > [85788.286730] 027 [0x827951b0]: 0xf854f000 0x0 0x16d8 0x90000000 > > index 025 and 026 descriptors processed but not index 027. > > At this stage Tx DMA is always in below state - > > ■ 3'b011: Running (Reading Data from system memory > buffer and queuing it to the Tx buffer (Tx FIFO)) Thats strange, I think the descriptors look okay though. I will need the registers values (before the lock) and, if possible, the git bisect output. Thanks and Best Regards, Jose Miguel Abreu > > Thanks, > Bhadram.