linux-kernel - RE: [PATCH RFC] IB/mad: remove obsolete snoop interface

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Date:	Wed, 30 Sep 2015 16:32:22 +0000
From:	"Weiny, Ira" <ira.weiny@...el.com>
To:	Hal Rosenstock <hal@....mellanox.co.il>
CC:	"dledford@...hat.com" <dledford@...hat.com>,
	"xerofoify@...il.com" <xerofoify@...il.com>,
	"linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
	"Hefty, Sean" <sean.hefty@...el.com>,
	"hal.rosenstock@...il.com" <hal.rosenstock@...il.com>,
	"jgunthorpe@...idianresearch.com" <jgunthorpe@...idianresearch.com>,
	"yun.wang@...fitbricks.com" <yun.wang@...fitbricks.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH RFC] IB/mad: remove obsolete snoop interface

> 
> On 9/30/2015 2:01 AM, ira.weiny@...el.com wrote:
> > From: Ira Weiny <ira.weiny@...el.com>
> >
> > This interface has no current users and is obsolete.
> 
> There are no in tree users of this but there is Sean's madeye tool (which is out
> of tree). This is still a useful debug tool for MADs.

Where is that?  I did not think it was supported any longer?

I have a series of about 5 patches which implement tracing in the MAD stack which I was working through and was going to submit along with this patch (those are still being tested in my spare time).  I just wanted put this out here because of the patch Nicholas posted yesterday.

> 
> > Signed-off-by: Ira Weiny <ira.weiny@...el.com>
> > ---
> >
> > This has undergone a medium level of testing.  I have run it against
> > mlx4, qib, and OPA hardware and it does not seem to cause any regressions.
> >
> >  drivers/infiniband/core/mad.c      | 226 +------------------------------------
> >  drivers/infiniband/core/mad_priv.h |  13 ---
> >  2 files changed, 5 insertions(+), 234 deletions(-)
> 
> There are also snoop changes needed in include/rdma/ib_mad.h.

I'll look into it if there are no other objections to removing the snoop interface.

> 
> Is it correct to assume that OPA_CAP_MASK3_IsSnoopSupported in
> opa_port_info.h is not related to this ?

Nope, not related.

Ira

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