netdev - Re: [RFC 00/11] QLogic RDMA Driver (qedr) RFC

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Message-ID: <CY4PR11MB17202A542AC07CBA4A65E93697FF0@CY4PR11MB1720.namprd11.prod.outlook.com>
Date:   Mon, 12 Sep 2016 17:39:35 +0000
From:   Yuval Mintz <Yuval.Mintz@...gic.com>
To:     Parav Pandit <pandit.parav@...il.com>,
        Leon Romanovsky <leon@...nel.org>
CC:     Ram Amrani <Ram.Amrani@...gic.com>,
        Doug Ledford <dledford@...hat.com>,
        David Miller <davem@...emloft.net>,
        Ariel Elior <Ariel.Elior@...gic.com>,
        Michal Kalderon <Michal.Kalderon@...gic.com>,
        Rajesh Borundia <rajesh.borundia@...gic.com>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [RFC 00/11] QLogic RDMA Driver (qedr) RFC

>>>  include/linux/qed/common_hsi.h                 |    1 +
>>>  include/linux/qed/qed_if.h                     |    9 +-
>>>  include/linux/qed/qed_ll2_if.h                 |  140 +
>>>  include/linux/qed/qed_roce_if.h                |  604 ++++
>>>  include/linux/qed/qede_roce.h                  |   88 +
>> > include/linux/qed/rdma_common.h                |    1 +
>>
>> Something not directly related to your patches, but they brought my
>> attention to the fact that all these new (and old) rdma<->net devices
>> are polluting include/linux
>>
> ocrdma driver includes be_roce.h located in net/ethernet/emulex/benet
> location instead of include/linux/.
> This file helps to bind rdma to net device or underlying hw device.

> May be similar change can be done for rest of the drivers for
> rdma<-->net devices?

By adding explicit inclusion paths in the Makefile, a la
ccflags-y := -Idrivers/net/ethernet/emulex/benet   ?

While this might work, I personally dislike it as I find it
counter-intuitive when going over the code -
I don't expect driver to locally modify the inclusion path.
Besides, we're going to [eventually] a whole suite of drivers based
on the qed module, some of which would reside under drivers/scsi;
Not sure it's best to have 3 or 4 different drivers privately include the
same directory under a different subsystem.

>> Filtered output:
>> ➜  linux-rdma git:(topic/fixes-for-4.8-2) ls -dl include/linux/*/
>> drwxrwxr-x  2 leonro leonro  4096 Aug 30 16:27 include/linux/hsi/
>> drwxrwxr-x  2 leonro leonro  4096 Sep 12 19:08 include/linux/mlx4/
>> drwxrwxr-x  2 leonro leonro  4096 Sep  7 15:31 include/linux/mlx5/
>> drwxrwxr-x  2 leonro leonro  4096 Sep  8 17:46 include/linux/qed/
>>
>> Is this the right place for them?
>
> Thanks