linux-kernel - Re: [PATCHv1 0/6] rdma controller support

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Date:	Thu, 7 Jan 2016 15:49:21 -0500
From:	Tejun Heo <tj@...nel.org>
To:	Parav Pandit <pandit.parav@...il.com>
Cc:	cgroups@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
	lizefan@...wei.com, Johannes Weiner <hannes@...xchg.org>,
	Doug Ledford <dledford@...hat.com>,
	Liran Liss <liranl@...lanox.com>,
	"Hefty, Sean" <sean.hefty@...el.com>,
	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Haggai Eran <haggaie@...lanox.com>,
	Jonathan Corbet <corbet@....net>, james.l.morris@...cle.com,
	serge@...lyn.com, Or Gerlitz <ogerlitz@...lanox.com>,
	Matan Barak <matanb@...lanox.com>, raindel@...lanox.com,
	akpm@...ux-foundation.org, linux-security-module@...r.kernel.org
Subject: Re: [PATCHv1 0/6] rdma controller support

Hello, Parav.

On Fri, Jan 08, 2016 at 02:16:59AM +0530, Parav Pandit wrote:
> Let me think through it. Its been late night for me currently. So dont
> want to conclude in hurry.

Sure thing.

> At high level it looks doable by maintaining hash table head on per
> device basis, that further reduces hash contention by one level.
> I will get back on this tomorrow.

Hmmm... why would it need a hash table?  Let's say there's a struct
rdma_device for each rdma_device and then that stuct can simply have
rdma_device->res_table[] or whatever to track limits and consumptions
and rdma_device->res_enabled mask to tell which resources are enabled
on the device.

Thanks.

-- 
tejun