From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jason Gunthorpe Subject: Re: [PATCH RFC 2/2] RDMA/nldev: provide detailed CM_ID information Date: Mon, 5 Feb 2018 15:20:25 -0700 Message-ID: <20180205222025.GC10095@ziepe.ca> References: <20180201084944.GH2055@mtr-leonro.local> <00ce01d39b76$bd374ac0$37a5e040$@opengridcomputing.com> <20180204150553.GH27780@mtr-leonro.local> <015301d39e96$9f5e0b60$de1a2220$@opengridcomputing.com> <20180205200020.GH11446@mellanox.com> <026201d39ebf$d1f087a0$75d196e0$@opengridcomputing.com> <20180205203608.GJ11446@mellanox.com> <026a01d39ec3$5cc48270$164d8750$@opengridcomputing.com> <20180205211618.GL11446@mellanox.com> <026c01d39ece$fd9cf550$f8d6dff0$@opengridcomputing.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <026c01d39ece$fd9cf550$f8d6dff0$@opengridcomputing.com> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steve Wise Cc: 'Leon Romanovsky' , dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org On Mon, Feb 05, 2018 at 04:16:37PM -0600, Steve Wise wrote: > > > > On Mon, Feb 05, 2018 at 02:53:23PM -0600, Steve Wise wrote: > > > > > Even if we create a device-unique ID for each restrack object, to make > it > > > useful to for userspace analysis would require exposing that ID in the > > > various user object structures (or via query methods). EG having > > > pd->res_id, cq->res_id, etc... > > > > As I said, we have that, it is the fd, handle # tuple and most verbs > > objects expose the handle # in the user visible part of the object > > struct.. > > Can you please show me an example of the handle # for some object like PD or > CQ? >>From rdma-core verbs.h: struct ibv_pd { struct ibv_context *context; uint32_t handle; }; > This doesn't address kernel users' object, though, correct? Right. And id'ing a file descriptor gets kinda hard too.. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html