From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751916AbdBYQxJ (ORCPT ); Sat, 25 Feb 2017 11:53:09 -0500 Received: from mail-wr0-f174.google.com ([209.85.128.174]:35668 "EHLO mail-wr0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751411AbdBYQxH (ORCPT ); Sat, 25 Feb 2017 11:53:07 -0500 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-block@vger.kernel.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= Subject: [RFC PATCH v2] lightnvm: pblk Date: Sat, 25 Feb 2017 17:53:00 +0100 Message-Id: <1488041581-17379-1-git-send-email-javier@cnexlabs.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch introduces pblk, a new target for LightNVM implementing a full host-based FTL. Details on the commit message. Changes since v1: * Rebase on top of Matias' for-4.12/core * Move from per-LUN block allocation to a line model. This means that a whole lines across all LUNs is allocated at a time. Data is still stripped in a round-robin fashion at a page granurality. * Implement new disk format scheme, where metadata is stored per line instead of per LUN. This allows for space optimizations. * Improvements on GC workqueue management and victim selection. * Implement sysfs interface to query pblk's operation and statistics. * Implement a user - GC I/O rate-limiter * Various bug fixes Javier González (1): lightnvm: physical block device (pblk) target Documentation/lightnvm/pblk.txt | 21 + drivers/lightnvm/Kconfig | 18 + drivers/lightnvm/Makefile | 5 + drivers/lightnvm/pblk-cache.c | 119 +++ drivers/lightnvm/pblk-core.c | 1539 ++++++++++++++++++++++++++++++++++++++ drivers/lightnvm/pblk-gc.c | 401 ++++++++++ drivers/lightnvm/pblk-init.c | 937 +++++++++++++++++++++++ drivers/lightnvm/pblk-map.c | 146 ++++ drivers/lightnvm/pblk-rb.c | 857 +++++++++++++++++++++ drivers/lightnvm/pblk-read.c | 512 +++++++++++++ drivers/lightnvm/pblk-recovery.c | 142 ++++ drivers/lightnvm/pblk-rl.c | 219 ++++++ drivers/lightnvm/pblk-sysfs.c | 947 +++++++++++++++++++++++ drivers/lightnvm/pblk-write.c | 407 ++++++++++ drivers/lightnvm/pblk.h | 958 ++++++++++++++++++++++++ 15 files changed, 7228 insertions(+) create mode 100644 Documentation/lightnvm/pblk.txt create mode 100644 drivers/lightnvm/pblk-cache.c create mode 100644 drivers/lightnvm/pblk-core.c create mode 100644 drivers/lightnvm/pblk-gc.c create mode 100644 drivers/lightnvm/pblk-init.c create mode 100644 drivers/lightnvm/pblk-map.c create mode 100644 drivers/lightnvm/pblk-rb.c create mode 100644 drivers/lightnvm/pblk-read.c create mode 100644 drivers/lightnvm/pblk-recovery.c create mode 100644 drivers/lightnvm/pblk-rl.c create mode 100644 drivers/lightnvm/pblk-sysfs.c create mode 100644 drivers/lightnvm/pblk-write.c create mode 100644 drivers/lightnvm/pblk.h -- 2.7.4