From patchwork Wed Mar 2 15:21:34 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: 8481801 Return-Path: X-Original-To: patchwork-linux-block@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 6565F9F2F0 for ; Wed, 2 Mar 2016 15:21:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 88E8120145 for ; Wed, 2 Mar 2016 15:21:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 39650200F4 for ; Wed, 2 Mar 2016 15:21:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752178AbcCBPVk (ORCPT ); Wed, 2 Mar 2016 10:21:40 -0500 Received: from mail-wm0-f53.google.com ([74.125.82.53]:38869 "EHLO mail-wm0-f53.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751772AbcCBPVj (ORCPT ); Wed, 2 Mar 2016 10:21:39 -0500 Received: by mail-wm0-f53.google.com with SMTP id l68so82628898wml.1 for ; Wed, 02 Mar 2016 07:21:38 -0800 (PST) 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=noBOnpkvOCNMmVBjxxx6ClfikKjK0BbHV1Jo6vWDcGQ=; b=FMrIX21giwAG235mzcmrngXeI47X9xnOS/vy4/M0IvJrLgmEfkoYwBHJ0mRLfBlBMU zqB/KhbCWOxJ86Qc7saYcSMwLvlgY7vrzOJelywy3i6BK+WzEpp2IAKJyZ4leJla9vmT UTgOSG1JnEjflMFm676oBcHonv3XbCg4YIOg2m9zOMQzprti8NBHsW3Zee+HCsCJWNHg CpSwRXk1D8iEvjGNXnqoz8Beam20P6fbTo30vyhM+1b2m8XRTYQlP7oaZAYz7372M/fa d0DC7evOB4777r6Vemfc7zfPnbDSYVXX3zS6f3nuLibFLt8J4rVuLEgbND1nsyPENyBG IdxQ== 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=noBOnpkvOCNMmVBjxxx6ClfikKjK0BbHV1Jo6vWDcGQ=; b=jywd6HH9K29fFq4Bl6Bchdh/qX0TQNYL1DTktXj7LbrQ99orNhtZRxmUUvRiWyhVWP YuZ9YJJbLBDCHUfTDFl/iSrH8H5hD5C7obRImKj7/ne3EypI33ebOr6KHRytioq31tMw AKcfCqxi6wgO2eecmuDtl0dh1GrLuyJkwFhXDaVP77NTx2+mZ1Lx3iXMN0n4MzeJ3vwL yZxZxTRLsmsffpSJNCsgq1008QO871KmgcT0BE3EYy33cRPiQYQNDhqaMqkx4dQoFGDR pfaFCETA3W3z80Vbhi3u2SjxxprT2vDNz1sYjF9x/JsnLN+PPtAfVOw47zjPBnCsgtkB jgPQ== X-Gm-Message-State: AD7BkJIEVdkI7r75Qe9aOFJ3SnvIMTSZGl7B4ynXDBDTPwqWYglcJWmIzCjV7e7y71gl5w== X-Received: by 10.28.180.84 with SMTP id d81mr535115wmf.42.1456932098088; Wed, 02 Mar 2016 07:21:38 -0800 (PST) Received: from localhost.localdomain (6164198-cl69.boa.fiberby.dk. [193.106.164.198]) by smtp.gmail.com with ESMTPSA id h128sm3423696wmf.23.2016.03.02.07.21.37 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 02 Mar 2016 07:21:37 -0800 (PST) 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: do not load L2P table if not supported Date: Wed, 2 Mar 2016 16:21:34 +0100 Message-Id: <1456932094-9808-1-git-send-email-javier@javigon.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=-6.8 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 An Open-Channel SSD can work on two modes: (i) hybrid mode, where the L2P table is maintained both by the host and by the device; and (ii) full host-based, where the L2P table is uniquely maintained by the host. The current rrpc target operates on hybrid mode. In the advent of a new target implementing the full host-based mode, do not assume that the L2P table must be loaded on the generic media manager; check device properties loaded on the identify command instead. Signed-off-by: Javier González --- drivers/lightnvm/gennvm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/lightnvm/gennvm.c b/drivers/lightnvm/gennvm.c index 42c1c2a..0625d42 100644 --- a/drivers/lightnvm/gennvm.c +++ b/drivers/lightnvm/gennvm.c @@ -257,6 +257,9 @@ static int gennvm_blocks_init(struct nvm_dev *dev, struct gen_nvm *gn) } } + if (!(dev->identity.dom & NVM_RSP_L2P)) + return 0; + if (dev->ops->get_l2p_tbl) { ret = dev->ops->get_l2p_tbl(dev, 0, dev->total_secs, gennvm_block_map, dev);