netdev - Re: [RFC PATCH 0/5] Reorganize libfcoe control interfaces

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Date:	Tue, 11 Sep 2012 10:12:09 -0700
From:	Chris Leech <cleech@...hat.com>
To:	Bhanu Prakash Gollapudi <bprakash@...adcom.com>
Cc:	Robert Love <robert.w.love@...el.com>, netdev@...r.kernel.org,
	gregkh@...uxfoundation.org, linux-scsi@...r.kernel.org,
	devel@...n-fcoe.org
Subject: Re: [RFC PATCH 0/5] Reorganize libfcoe control interfaces

On Mon, Sep 10, 2012 at 5:05 PM, Bhanu Prakash Gollapudi
<bprakash@...adcom.com> wrote:
>
> I'm concerned that we will be breaking user space compatibility with this
> change, as there should be a corresponding fcoemon/fipvlan change along with
> this, and existing utilities will not work.  Also the way we start fcoe will
> be completely different and the user may need to do the scripting changes,
> if any.
>

I agree with Bhanu on these concerns, even though I hope everyone's
using fcoeadm/fcoemon/fipvlan.  I think there needs to be more of a
transition plan than requiring everyone moving to a new kernel to
update the user-space tools at the same time.  Removing the module
parameters with the last patch might be rushed, they should probably
remain for a few kernel cycles with a warning.  When the tools are
updated for the new interface, they should probably maintain fallback
support for the module parameters for a while as well.

- Chris
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