netdev - Re: [PATCH v5 06/22] i40e: Register auxiliary devices to provide RDMA

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Date:   Wed, 19 May 2021 15:51:46 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Shiraz Saleem <shiraz.saleem@...el.com>
Cc:     dledford@...hat.com, jgg@...dia.com, kuba@...nel.org,
        davem@...emloft.net, linux-rdma@...r.kernel.org,
        netdev@...r.kernel.org, david.m.ertman@...el.com,
        anthony.l.nguyen@...el.com
Subject: Re: [PATCH v5 06/22] i40e: Register auxiliary devices to provide RDMA

On Fri, May 14, 2021 at 09:11:58AM -0500, Shiraz Saleem wrote:
> Convert i40e to use the auxiliary bus infrastructure to export
> the RDMA functionality of the device to the RDMA driver.
> Register i40e client auxiliary RDMA device on the auxiliary bus per
> PCIe device function for the new auxiliary rdma driver (irdma) to
> attach to.
> 
> The global i40e_register_client and i40e_unregister_client symbols
> will be obsoleted once irdma replaces i40iw in the kernel
> for the X722 device.
> 
> Signed-off-by: Shiraz Saleem <shiraz.saleem@...el.com>
> ---
>  drivers/net/ethernet/intel/Kconfig            |   1 +
>  drivers/net/ethernet/intel/i40e/i40e.h        |   2 +
>  drivers/net/ethernet/intel/i40e/i40e_client.c | 152 ++++++++++++++++++++++----
>  drivers/net/ethernet/intel/i40e/i40e_main.c   |   1 +
>  4 files changed, 136 insertions(+), 20 deletions(-)

The amount of obfuscation in this driver is astonishing.

I would expect that after this series, the i40e_client_add_*() would be cleaned,
for example simple grep of I40E_CLIENT_VERSION_MAJOR shows that i40e_register_client()
still have no-go code.

Thanks