Received: by 2002:a25:1985:0:0:0:0:0 with SMTP id 127csp656193ybz; Fri, 1 May 2020 06:17:05 -0700 (PDT) X-Google-Smtp-Source: APiQypLqRHsqGYFV24WBp7WX4JCzdTgCNl3JmtAva669r/YkaacyliCbpTM+l3tXvxbfF3kVw/VH X-Received: by 2002:aa7:d0d8:: with SMTP id u24mr3664357edo.138.1588339025737; Fri, 01 May 2020 06:17:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588339025; cv=none; d=google.com; s=arc-20160816; b=Qz61ZfIxQutxb9D6g7GpKom0vOCACxa+tKYomRRkWONYkbmYfkptAOFtEZbWHjJTBa 4WZHV38SM1rIu8eUBP+oWXAXpKzOFQsIby3aL2r4Jxccl04nwHjgxZoZp0Q5I2FtDUhM 5WNSnQJ0mr8Bwt0cd1J/vAWtO0GGO86XMoEcoAbqeM+rlKng3eoVYxDsFOpgrAWNoYX7 J3Ny0Crevv/QFKH27sHPe/xXdJOI4SB4SryKvl/iA8KSHBzzEESCGzi5ezB8E965ENvn LaHFtre28mMRAZ9639Hqjox6JEXqZij/m6eAfCRE85ZqMAs+re7wy/u6Zyj5CAObuJRJ G4bQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=zv5dS2kqDIrr0KU8XEf16avOfcL5+9o2Ivt5v2RqMiA=; b=LS1N/NGp8V09PaBu7nvyGAZ730DSOAjVwkWblh/GjIk1HFoe2A/2zgO1LOaY4S/psM orW6BCEgkNdXpNuXb9wrrYURLjDUT7KX87p607KXgUhOS9zws3Sj3DrY5eV8z3vXfIaQ WTY/hWXrkNafcpgESHmh+Tn+qBpFH/p2ZnAyouaLpkOSLuznH9HMXLjYeuDSmrVlkWXY 1iiU4vwGPfRyGEjbC4P6RLGQh1ytok9g1I/nDQCyRPD/WYB1PCwa1lDdX2UtdSGOxWZ8 WsuAQx237+4E/NcXsHNOajuFgWq+5gLwHQFczZrXxHWZsV3kgXEQ4TRm9WMbG9m9KEui gY9A== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id ci23si1727541ejb.133.2020.05.01.06.16.41; Fri, 01 May 2020 06:17:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728817AbgEANND (ORCPT + 99 others); Fri, 1 May 2020 09:13:03 -0400 Received: from verein.lst.de ([213.95.11.211]:46194 "EHLO verein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728720AbgEANND (ORCPT ); Fri, 1 May 2020 09:13:03 -0400 Received: by verein.lst.de (Postfix, from userid 2407) id E2AC168BFE; Fri, 1 May 2020 15:12:59 +0200 (CEST) Date: Fri, 1 May 2020 15:12:59 +0200 From: "hch@lst.de" To: "David E. Box" Cc: "Williams, Dan J" , "hch@lst.de" , "linux-nvme@lists.infradead.org" , "sagi@grimberg.me" , "lenb@kernel.org" , "rjw@rjwysocki.net" , "linux-kernel@vger.kernel.org" , "linux-acpi@vger.kernel.org" , "linux-pci@vger.kernel.org" , "axboe@fb.com" , "kbusch@kernel.org" , "bhelgaas@google.com" Subject: Re: [PATCH 0/2] Add support for StorageD3Enable _DSD property Message-ID: <20200501131259.GB6600@lst.de> References: <20200428003214.3764-1-david.e.box@linux.intel.com> <20200428051312.GB17146@lst.de> <20200428142247.GB5439@lst.de> <296064bbcf702744bf603932c9d849307db2e5b7.camel@intel.com> <537edbfaa088a655eb22e7eba05075aa61d941be.camel@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <537edbfaa088a655eb22e7eba05075aa61d941be.camel@linux.intel.com> User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 29, 2020 at 09:11:13AM -0700, David E. Box wrote: > Not drop completely. This patch copied the code used to read _DSD > properties under PCI root ports. But I agree that such properties > should apply to all devices on those ports and unfortuntely that's not > the case here. BIOS got it wrong. My thought in dropping this patch is > to rewrite it to read the property directly from the nvme driver. Not > the way it's typically done either but it would avoid a global change > in the pci core while allowing us to deal with the firmware we have. I'd be happy to heave less of this crap in nvme actually. But I'm really pissed this shit got out in the wild. It wasn't clear from the mail that this is something already out there because the idiots coming up with it just went ahead with it. Please just update the commit logs and implementation to clearly mark it as a workaround for buggys systems, which just happen to at least be nice enough to tell us that they are buggy as f^$k.