From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tziporet Koren Subject: Re: Support for Memory windows. Date: Tue, 16 Nov 2010 15:01:49 +0200 Message-ID: <4CE280BD.8080505@mellanox.co.il> References: <4CE14C82.9020907@cwi.nl> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4CE14C82.9020907-rh8NL+sEX9E@public.gmane.org> Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Romulo Goncalves Cc: "linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-rdma@vger.kernel.org On 11/15/2010 5:06 PM, Romulo Goncalves wrote: > Hello, > > For my PhD project I have been using RDMA over inifiniband. > Until now I have used memory regions, but now I would like to also define memory windows. > > The steps taken are the following ones: > Register a memory region. > Alloc a window > bind the window to the registered memory region. > > The memory region registration worked as expected, however, the call of the function to alloc the memory window did not. > It seems there is not an implementation for the functions to alloc, bind, and dealloc a memory window. > > I looked into verbs.h and I found the reference to the functions in the context_ops: > > struct ibv_context_ops { > .... > struct ibv_mw * (*alloc_mw)(struct ibv_pd *pd, enum ibv_mw_type type); > int (*bind_mw)(struct ibv_qp *qp, struct ibv_mw *mw, struct ibv_mw_bind *mw_bind); > int (*dealloc_mw)(struct ibv_mw *mw); > .... > } > > However, I do not see their declaration or implementation anywhere else. > Could be the version of my openfabrics does not support memory windows? > Memory Windows have not been implemented Tziporet -- 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