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

On Mon, Sep 12, 2016 at 05:39:35PM +0000, Yuval Mintz wrote:

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 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.

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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.

I agree with you that orcdma's way can be valuable for small drivers.

Orcmda has small shared headers set and doesn't need to change them rapidly
to support different devices.

I thought to place them in similar directory to include/soc/* and remove
from include/linux/. We have include/rdma/ and it looks like a good
candidate.

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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