From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jens Axboe <axboe@fb.com>
Subject: Re: mlx5 broken affinity
Date: Thu, 9 Nov 2017 13:12:57 -0700
Message-ID: <fe4292e1-c3fa-b3e6-4beb-b2d48bbcff9d@fb.com>
References: <2187e555-2c4e-ef55-1c3a-17f5af54d762@fb.com>
 <d65d6156-07da-14dc-88ff-fcb5c0ef5f83@grimberg.me>
 <f8624a01-f77a-ac0b-ba19-19c7150ca133@fb.com>
 <CALzJLG-Z2fJibyZ74XU7XCSx-g3=YapV9VyekAYZkS5JwvkwWw@mail.gmail.com>
 <573060a9-19a7-9133-ef52-fa947088dabb@fb.com>
 <3af0c164-8dde-b6f0-45e1-edbbb28e7f73@mellanox.com>
 <83d3944f-8a31-eb31-93db-294906630b0e@grimberg.me>
 <556f3ff5-c1d4-25c6-7bfc-9866c0d9b323@fb.com>
 <9384acdc-a5d8-872c-0034-9a3869f4fc8b@grimberg.me>
 <alpine.DEB.2.20.1711021907420.2824@nanos>
 <1d2e9304-089a-a769-9f38-a742dc066baf@grimberg.me>
 <alpine.DEB.2.20.1711071551330.1716@nanos>
 <67a1157e-06e7-479c-993e-bdf42fd613c6@fb.com>
 <alpine.DEB.2.20.1711081822450.1937@nanos>
 <69a46009-184f-d925-289c-6036f0bf2554@grimberg.me>
 <alpine.DEB.2.20.1711091429000.1839@nanos>
 <ab3d9f56-1d34-cca0-0b51-03a93e5b3cbc@grimberg.me>
 <0c2b2aff-1d9b-5796-2a93-5ffa2f00d6de@fb.com>
 <alpine.DEB.2.20.1711091805380.1839@nanos>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Cc: Sagi Grimberg <sagi@grimberg.me>, Jes Sorensen <jsorensen@fb.com>,
        Tariq Toukan <tariqt@mellanox.com>,
        Saeed Mahameed <saeedm@dev.mellanox.co.il>,
        Networking <netdev@vger.kernel.org>,
        Leon Romanovsky <leonro@mellanox.com>,
        Saeed Mahameed <saeedm@mellanox.com>,
        Kernel Team <kernel-team@fb.com>,
        Christoph Hellwig <hch@lst.de>
To: Thomas Gleixner <tglx@linutronix.de>
Return-path: <netdev-owner@vger.kernel.org>
Received: from mx0a-00082601.pphosted.com ([67.231.145.42]:56556 "EHLO
        mx0a-00082601.pphosted.com" rhost-flags-OK-OK-OK-OK)
        by vger.kernel.org with ESMTP id S1750968AbdKIUN5 (ORCPT
        <rfc822;netdev@vger.kernel.org>); Thu, 9 Nov 2017 15:13:57 -0500
In-Reply-To: <alpine.DEB.2.20.1711091805380.1839@nanos>
Content-Language: en-US
Sender: netdev-owner@vger.kernel.org
List-ID: <netdev.vger.kernel.org>

On 11/09/2017 10:07 AM, Thomas Gleixner wrote:
> On Thu, 9 Nov 2017, Jens Axboe wrote:
> 
>> On 11/09/2017 09:01 AM, Sagi Grimberg wrote:
>>>> Now you try to blame the people who implemented the managed affinity stuff
>>>> for the wreckage, which was created by people who changed drivers to use
>>>> it. Nice try.
>>>
>>> I'm not trying to blame anyone, really. I was just trying to understand
>>> how to move forward with making users happy and still enjoy subsystem
>>> services instead of doing lots of similar things inside mlx5 driver.
>>
>> Exactly. The key here is how we make it work for both cases. But there
>> has to be a willingness to make the infrastructure work for that.
> 
> I say it one last time: It can be done and I'm willing to help.

It didn't sound like it earlier, but that's good news.

> Please tell me what exactly you expect and I can have a look what needs to
> be done w/o creating an utter mess.

See the previous email, should have all the details.

-- 
Jens Axboe