From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Duyck Subject: Re: [net-next PATCH] mlx4/mlx5: Use dma_wmb/rmb where appropriate Date: Tue, 24 Mar 2015 16:33:28 -0700 Message-ID: <5511F448.6090608@redhat.com> References: <20150323171300.1117.85908.stgit@ahduyck-vm-fedora22> <55112DD9.9030105@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: Or Gerlitz , netdev@vger.kernel.org, Amir Vadai , Eli Cohen To: davem@davemloft.net Return-path: Received: from mx1.redhat.com ([209.132.183.28]:44445 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752190AbbCXXda (ORCPT ); Tue, 24 Mar 2015 19:33:30 -0400 In-Reply-To: <55112DD9.9030105@mellanox.com> Sender: netdev-owner@vger.kernel.org List-ID: On 03/24/2015 02:26 AM, Or Gerlitz wrote: > On 3/23/2015 7:23 PM, Alexander Duyck wrote: >> [...] I don't have any adapters supported by these drivers so I am >> unable to do anything more than build test the changes. > > Alex, I'll provide you details on HW access for cards provided to > red-hat so you can test the changes. This patch can be dropped for now. It looks like we are seeing some sort of weird performance glitch on the Rx side where things are running faster on average but there is a slow-down for a second or two every 20 seconds or so which we don't see without the patch. - Alex