From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sinan Kaya Subject: Re: [PATCH v4 4/6] infiniband: cxgb4: Eliminate duplicate barriers on weakly-ordered archs Date: Thu, 22 Mar 2018 09:52:04 -0500 Message-ID: <83484a3f-d3f7-d763-e4f8-e4fec3bb8cc2@codeaurora.org> References: <1521514068-8856-5-git-send-email-okaya@codeaurora.org> <201803221430.P43GJl9U%fengguang.wu@intel.com> <3664b253c730dbf83f4528acaedb3a88@codeaurora.org> <3e9c006e4541acbce11743dbda553e84@codeaurora.org> <03d201d3c1eb$b71fb460$255f1d20$@opengridcomputing.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <03d201d3c1eb$b71fb460$255f1d20$@opengridcomputing.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: Steve Wise , 'kbuild test robot' Cc: kbuild-all@01.org, linux-rdma@vger.kernel.org, timur@codeaurora.org, sulrich@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, 'Steve Wise' , 'Doug Ledford' , 'Jason Gunthorpe' , linux-kernel@vger.kernel.org, 'Casey Leedom' , 'Michael Werner' List-Id: linux-arm-msm@vger.kernel.org On 3/22/2018 9:40 AM, Steve Wise wrote: > I think all these iw_cxgb4 changes should be reverted until we really have a > plan for multi-platform that works. I know you are looking to have support for PowerPC. Isn't this a PowerPC problem? Why penalize other architectures? Do you see anything wrong with the code itself? I started this thread with the PowerPC develoeprs on your request. "RFC on writel and writel_relaxed" They are looking into adding the relaxed API support. Support can come in later. Why block this change now? benh@kernel.crashing.org: "I've been wanting to implement the relaxed accessors for a while but was battling with this to try to also better support WC, and due to other commitments, this somewhat fell down the cracks." I have seen four different responses on this thread. Since this is an architecture change it will take a while to get the semantics right. It won't happen in the new few days. -- Sinan Kaya Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.