Re: [for-next 4/6] net/mlx5: FPGA, Add basic support for Innova

[Jes Sorensen <jsorensen-b10kYP2dOMg@public.gmane.org>]

On 05/26/2017 04:29 AM, Saeed Mahameed wrote:
> On Thu, May 25, 2017 at 11:48 PM, Jes Sorensen <jsorensen-b10kYP2dOMg@public.gmane.org> wrote:
>> On 05/25/2017 06:40 AM, Saeed Mahameed wrote:
> Hi Jes,
> 
> No, It is clearly stated in the commit message :
> 
> "The FPGA is a bump-on-the-wire and thus affects operation of
> the mlx5_core driver on the ConnectX ASIC."
> 
> Which means mlx5 FPGA user can only write logic which affects only
> packets going in/out
> A ConnectX chip - so it is only network stuff -.
> 
>> We have this with other devices in the kernel where a primary device driver
>> provides an interface for an additional sub-driver to access another device
>> behind it. Like bt-coexist in some of the wifi drivers allowing access to a
>> bluetooth device behind it.
> 
> Blutooth over wifi or vise versa is a very good example to what you
> are requesting.
> But, it doesn't fit to what we are trying to do here. mlx5 FGPA is a
> ConnectX card feature, not a new protocol.

In that case it would need to be an optional module that can be enabled 
or disabled at build time.

Cheers,
Jes


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