From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roland Dreier Subject: Re: [openib-general] Re: [PATCH 6/6] IB: userspace support for RDMA connection manager Date: Mon, 06 Mar 2006 16:10:56 -0800 Message-ID: References: <20060306.143901.26500391.davem@davemloft.net> <20060306.145053.129802994.davem@davemloft.net> <1141689930.3814.69.camel@serpentine.pathscale.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, "David S. Miller" , openib-general@openib.org, linux-kernel@vger.kernel.org Return-path: To: "Bryan O'Sullivan" In-Reply-To: <1141689930.3814.69.camel@serpentine.pathscale.com> (Bryan O'Sullivan's message of "Mon, 06 Mar 2006 16:05:30 -0800") Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Bryan> Depends on the driver. Ours needs the interrupt vector Bryan> rather than the number, which means we don't work without Bryan> CONFIG_PCI_MSI. That is, unless there's some other way to Bryan> get the vector that I don't know about (entirely likely). OK, fair enough. But that's a quirk of the x86 architecture that you're pretty tied to -- you don't actually need MSI, you just need the interrupt numbering that is enabled on x86 with that config option. Since Niagara boxes don't have HT anyway it's kind of a moot point. Although I wonder what you would have to do to make your device work with something like the MIPS SoCs that have HT... - R.