From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7F44AC433F5 for ; Sat, 23 Apr 2022 16:22:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236375AbiDWQZC (ORCPT ); Sat, 23 Apr 2022 12:25:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44658 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232381AbiDWQZA (ORCPT ); Sat, 23 Apr 2022 12:25:00 -0400 Received: from vps0.lunn.ch (vps0.lunn.ch [185.16.172.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0DFAD25C7D for ; Sat, 23 Apr 2022 09:22:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Disposition:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:From:Sender:Reply-To:Subject: Date:Message-ID:To:Cc:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Content-Disposition:In-Reply-To:References; bh=z02aSPrMSCAVo2bRecHxPZns4c36BZS2YhNAHKVWubk=; b=sU/814VjbeVdw/r/UPn9SmEBVp 1feqmUs1hirqfh1HYZJllXNdVZvPVXMVKZxV1WXO6hRC46Nq8yyOcDFMToj6MvLsbBoqSFAAQxpuW Omw4VwfutTQUQmCA/MdR3hpfgjo2/SH0l+4FFmeVe83e9wwHIaTe/qDUCHxqtKU6kVGo=; Received: from andrew by vps0.lunn.ch with local (Exim 4.94.2) (envelope-from ) id 1niIW9-00HATB-FM; Sat, 23 Apr 2022 18:21:53 +0200 Date: Sat, 23 Apr 2022 18:21:53 +0200 From: Andrew Lunn To: Nathan Rossi Cc: Marc Zyngier , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Nathan Rossi , Gregory Clement , Sebastian Hesselbarth , Thomas Gleixner Subject: Re: [PATCH] irqchip/armada-370-xp: Enable MSI affinity configuration Message-ID: References: <20220421015728.86912-1-nathan@nathanrossi.com> <87mtgfgx7d.wl-maz@kernel.org> <87fsm6ahnh.wl-maz@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 22, 2022 at 10:58:23PM +1000, Nathan Rossi wrote: > On Fri, 22 Apr 2022 at 22:19, Andrew Lunn wrote: > > > > > If you have a PCIe device that you can use with the 370 rd. > > > > Sorry, nothing on its bus. > > > > The only device i have which might make sense testing is a > > WRT1900ac. That has an Armada XP dual core. I could try building a UP > > kernel for it, but i guess you have tried that already with your > > machine in order to test a UP setup? > > I have tested with SMP=n on a Armada 385 without any issues. So no > need to do that on the Armada XP. > > There is still value in testing on the WRT1900ac device since so far I > have only tested on a Armada 385. The Armada XP does have > registers/etc. of the MPIC very similar to the 370, compared to the > 385 having some significant differences. So if it is not too > problematic to test on (it appears to have its wifi attached via > PCIe?) please do. Hi Nathan Turns out the WiFi drivers are in a sorry state. There is no mainline driver. There is an OpenWRT driver, but it has not been updated for a few years, tries to use get_fs() set_fs() pci_map_single() etc. I've mostly used this platform for Ethernet switch development, so i've never tried the WiFi before. I had no idea it was so broken... So sorry, i cannot test this. Andrew