From patchwork Wed May 11 12:08:26 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= X-Patchwork-Id: 9068841 Return-Path: X-Original-To: patchwork-linux-block@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id DF14EBF29F for ; Wed, 11 May 2016 12:09:06 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6A4CB200E9 for ; Wed, 11 May 2016 12:09:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C426200B4 for ; Wed, 11 May 2016 12:09:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751530AbcEKMIs (ORCPT ); Wed, 11 May 2016 08:08:48 -0400 Received: from mail-wm0-f46.google.com ([74.125.82.46]:36050 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751407AbcEKMIr (ORCPT ); Wed, 11 May 2016 08:08:47 -0400 Received: by mail-wm0-f46.google.com with SMTP id n129so216791775wmn.1 for ; Wed, 11 May 2016 05:08:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lightnvm-io.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=h/H0Ly3+S44re0tfvzTbOUo8SWv+4AuN4zsTmqRVRmY=; b=XX2Ga9AK0mnauUHN2Kx9GqucMqudqOLfoBKQWROt0FO8TKQPCXF0yGyPNuE4hcgFYs QcdTqbkJLcesP3JaU+H1cDUhJyCPFmc86BORiBK6AUj73nhgxppeFXgBT/ygsiUVz99d UE5hSJRg701zkps1nHWojJ+eJZv01Yu3aKTIpFqhz9Y+sgY2aoH465vKmQRGkQe3SauQ beA9Mx4wqPxPz80NE5cuRBuHnU3zQpMMj/XmZU/Y1TLNCUFzeRESfzfSwx1thglyke+2 QkkQ9fG0N1a3WOboaQeMXC7HqX/iJpzMj8jwKspLaxkvCghp3mFNQktKQhAxcXBE0xZj riYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=h/H0Ly3+S44re0tfvzTbOUo8SWv+4AuN4zsTmqRVRmY=; b=BH7sUOSkcnOk/7RomfK4ChEOk+baEf4vhdC42hcJseKW+g5zoA2+oKGSa0bhgj3clA k2TGIpppJpJNutEj25HSU+mi9p44GMGjU+LPWF9ST5RX9P3eSFU2a6I+DfleTUgTkSM0 6Iu58UZ/NACMJNwWy73qF7XWyiHMPWxbj8LjHod4acfHRnYzloZCwAMMG6wgUwf/Me27 Zgi0nagvV3DfJ84dvOI2tNZD9uOPyVDuurB8RcgDu8MMzbzYZIlk7a2zqNU8g/4guLuI 7qEecbf8tBzUvy9779FqZJQ8CHamMOYnFch0ZW2r0utQ3N9QbORezBVTBzIqdhW0n2eZ AaRA== X-Gm-Message-State: AOPr4FW4g5W8CXP3JSxcSZbA3ZYwUuoXLObvaSTQwkOJOxfQuqteyL9YdyeVbYJgl0SWrg== X-Received: by 10.194.80.162 with SMTP id s2mr3414597wjx.116.1462968525757; Wed, 11 May 2016 05:08:45 -0700 (PDT) Received: from uHalley.cnexlabs.com (6164211-cl69.boa.fiberby.dk. [193.106.164.211]) by smtp.gmail.com with ESMTPSA id f11sm35686343wmf.22.2016.05.11.05.08.44 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 11 May 2016 05:08:45 -0700 (PDT) From: "=?UTF-8?q?Javier=20Gonz=C3=A1lez?=" X-Google-Original-From: =?UTF-8?q?Javier=20Gonz=C3=A1lez?= To: mb@lightnvm.io Cc: linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Subject: [PATCH] lightnvm: clear reserved bit on generic addr Date: Wed, 11 May 2016 14:08:26 +0200 Message-Id: <1462968506-9292-1-git-send-email-javier@cnexlabs.com> X-Mailer: git-send-email 2.5.0 MIME-Version: 1.0 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Spam-Status: No, score=-8.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When an address is converted from device to generic mode, the reserved bit needs to be cleared in order to signal that the address points to a flash block, not to a cacheline on the write buffer. Signed-off-by: Javier González --- include/linux/lightnvm.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h index 45be892..3d2c380 100644 --- a/include/linux/lightnvm.h +++ b/include/linux/lightnvm.h @@ -418,6 +418,9 @@ static inline struct ppa_addr dev_to_generic_addr(struct nvm_dev *dev, l.g.ch |= (r.ppa >> dev->ppaf.ch_offset) & (((1 << dev->ppaf.ch_len) - 1)); + /* On device side, reserved bit is always 0 */ + l.g.reserved = 0; + return l; }