From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Subject: Re: [PATCHv12 0/3] rdmacg: IB/core: rdma controller support
Date: Thu, 10 Nov 2016 12:32:17 -0500
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To: Parav Pandit <pandit.parav-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Leon Romanovsky <leon-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, Liran Liss <liranl-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, "cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" <cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-rdma <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, Li Zefan <lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org>, Johannes Weiner <hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org>, Doug Ledford <dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>, "Hefty, Sean" <sean.hefty-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Jason Gunthorpe <jgunthorpe-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>, Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, "james.l.morris-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org" <james.l.morris-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>, Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>, Matan Barak <matanb-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>

Hello, Parav.

On Thu, Nov 10, 2016 at 10:34:44PM +0530, Parav Pandit wrote:
> user-kernel interface:
> ---------------------------
> (a) rdma.current - Will continue to report resource count.
> (b) rdma.max - will continue to accept hca_handles, and hca_objects as
> absolute number.
> 
> Instead of mr, pd, qp, ah, srq entries of patch_v12, it will have just
> two entries for each device.
> (1) hca_handles, (2) hca_objects.
> 
> rdmacg - IB stack interface:
> --------------------------------
> cgroup_rdma.h will have two enum entries.
> 
> RDMACG_RESOURCE_HCA_HANDLE
> RDMACG_RESOURCE_OBJECT
> 
> IB stack will charge either of the object.
> When HCA handles are allocated/freed IB core will request charge/uncharge.
> When standard verb resources such as PD, MR, CQ, QP, SRQ are
> allocated/freed IB core will request for XX_OBJECT charge/uncharge.
> 
> Currently defined APIs and interfaces just remains same.

That looks great to me from cgroup side.  Do you have plans for
exposing the maximum numbers available?

Thanks.

-- 
tejun