Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755115AbYKQADS (ORCPT ); Sun, 16 Nov 2008 19:03:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751649AbYKQADD (ORCPT ); Sun, 16 Nov 2008 19:03:03 -0500 Received: from terminus.zytor.com ([198.137.202.10]:35137 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751303AbYKQADB (ORCPT ); Sun, 16 Nov 2008 19:03:01 -0500 Message-ID: <4920B3E3.4050707@zytor.com> Date: Sun, 16 Nov 2008 15:59:31 -0800 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Yinghai Lu CC: Benjamin Herrenschmidt , Andrew Morton , mingo@elte.hu, tglx@linutronix.de, linux-kernel@vger.kernel.org, travis@sgi.com Subject: Re: [PATCH] sparse_irq aka dyn_irq v13 References: <491434FB.2050904@kernel.org> <20081107124957.GA21709@elte.hu> <49168BD3.5010204@kernel.org> <20081109073813.GA17180@elte.hu> <86802c440811090003g5ac53822y852a4c1096228f8b@mail.gmail.com> <20081110094033.GL22392@elte.hu> <20081110015511.453a801e.akpm@linux-foundation.org> <4918065A.6050402@kernel.org> <20081110100329.GA19970@elte.hu> <491A9F87.8040403@kernel.org> <20081112120814.GG11352@elte.hu> <491C8B38.9060901@kernel.org> <20081113131850.d94fb229.akpm@linux-foundation.org> <1226869137.7178.175.camel@pasglop> <4920B069.5020203@kernel.org> <4920B15E.6090200@zytor.com> <4920B2A4.4040900@kernel.org> In-Reply-To: <4920B2A4.4040900@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1142 Lines: 26 Yinghai Lu wrote: > H. Peter Anvin wrote: >> Yinghai Lu wrote: >>> 2. make irq number is bus/devfn/idx, and every dev func will use 12bit range, irq number is relatively fixed not like current MSI irq creating is some kind of floating from NR_IRQS too. >> 2 is *STILL WRONG*, dammit! >> >> You keep bringing this one up, but our PCI addressing is >> *DOMAIN*/bus/devfn -- it falls flat on its face when you have more than >> 16 PCI domains. CAN WE PLEASE STOP WITH THIS FOOLISHNESS NOW! > > you want to u64 instead of unsigned int for irq? > No, I think the whole notion of a static *numeric* identifier for an IRQ when it's something like MSI-X is simply pointless. I think we should assign IRQ numbers beyond the legacy range dynamically. I really don't think anyone gives a hoot about the IRQ number for any IRQ above the 0-15 legacy range, even including the "APIC" numbers 16+. -hpa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/