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authorMatias Bjørling <m@bjorling.me>2015-10-28 21:54:55 +0300
committerJens Axboe <axboe@fb.com>2015-10-29 10:21:42 +0300
commitcd9e9808d18fe7107c306f6e71c8be7230ee42b4 (patch)
tree1e447cc1019e8128753bbf78712484b8eb8144f4 /drivers/Kconfig
parentb3975e94f5688691f487ea00126dabe8f5bee3af (diff)
downloadlinux-cd9e9808d18fe7107c306f6e71c8be7230ee42b4.tar.xz
lightnvm: Support for Open-Channel SSDs
Open-channel SSDs are devices that share responsibilities with the host in order to implement and maintain features that typical SSDs keep strictly in firmware. These include (i) the Flash Translation Layer (FTL), (ii) bad block management, and (iii) hardware units such as the flash controller, the interface controller, and large amounts of flash chips. In this way, Open-channels SSDs exposes direct access to their physical flash storage, while keeping a subset of the internal features of SSDs. LightNVM is a specification that gives support to Open-channel SSDs LightNVM allows the host to manage data placement, garbage collection, and parallelism. Device specific responsibilities such as bad block management, FTL extensions to support atomic IOs, or metadata persistence are still handled by the device. The implementation of LightNVM consists of two parts: core and (multiple) targets. The core implements functionality shared across targets. This is initialization, teardown and statistics. The targets implement the interface that exposes physical flash to user-space applications. Examples of such targets include key-value store, object-store, as well as traditional block devices, which can be application-specific. Contributions in this patch from: Javier Gonzalez <jg@lightnvm.io> Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Jesper Madsen <jmad@itu.dk> Signed-off-by: Matias Bjørling <m@bjorling.me> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/Kconfig')
-rw-r--r--drivers/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/Kconfig b/drivers/Kconfig
index e69ec82ac80a..3a5ab4d5873d 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -44,6 +44,8 @@ source "drivers/net/Kconfig"
source "drivers/isdn/Kconfig"
+source "drivers/lightnvm/Kconfig"
+
# input before char - char/joystick depends on it. As does USB.
source "drivers/input/Kconfig"