From: "Javier González" <jg@lightnvm.io>
To: mb@lightnvm.io
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
"Javier González" <javier@cnexlabs.com>
Subject: [PATCH v3] lightnvm: pblk
Date: Fri, 7 Apr 2017 20:50:14 +0200 [thread overview]
Message-ID: <1491591015-7554-1-git-send-email-javier@cnexlabs.com> (raw)
This patch introduces pblk, a new target for LightNVM implementing a
full host-based FTL. Details on the commit message.
Changes since v2:
* Rebase on top of Matias' for-4.12/core
* Implement L2P scan recovery to recover L2P table in case of power
failure.
* Re-design disk format to be more flexible in future versions (from
Matias Bjørling)
* Implement per-instance uuid to allow correct recovery without
forcing line erases (from Matias Bjørling)
* Re-design GC threading to have several GC readers and a single
writer that places data on the write buffer. This allows to maximize
the GC write buffer budget without having unnecessary GC writers
competing for the write buffer lock.
* Simplify sysfs interface.
* Refactoring and several code improvements (together with Matias
Bjørling)
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 | 19 +
drivers/lightnvm/Makefile | 5 +
drivers/lightnvm/pblk-cache.c | 112 +++
drivers/lightnvm/pblk-core.c | 1641 ++++++++++++++++++++++++++++++++++++++
drivers/lightnvm/pblk-gc.c | 542 +++++++++++++
drivers/lightnvm/pblk-init.c | 942 ++++++++++++++++++++++
drivers/lightnvm/pblk-map.c | 135 ++++
drivers/lightnvm/pblk-rb.c | 859 ++++++++++++++++++++
drivers/lightnvm/pblk-read.c | 513 ++++++++++++
drivers/lightnvm/pblk-recovery.c | 1007 +++++++++++++++++++++++
drivers/lightnvm/pblk-rl.c | 182 +++++
drivers/lightnvm/pblk-sysfs.c | 500 ++++++++++++
drivers/lightnvm/pblk-write.c | 408 ++++++++++
drivers/lightnvm/pblk.h | 1127 ++++++++++++++++++++++++++
include/linux/lightnvm.h | 57 +-
pblk-sysfs.c | 581 ++++++++++++++
17 files changed, 8638 insertions(+), 13 deletions(-)
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
create mode 100644 pblk-sysfs.c
--
2.7.4
next reply other threads:[~2017-04-07 18:50 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-07 18:50 Javier González [this message]
[not found] ` <1491591015-7554-2-git-send-email-javier@cnexlabs.com>
2017-04-08 20:56 ` [PATCH v3] lightnvm: physical block device (pblk) target Bart Van Assche
2017-04-09 9:15 ` Javier González
2017-04-10 15:55 ` Bart Van Assche
2017-04-10 17:47 ` Matias Bjørling
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