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f8ee34a929
Lightnvm was an innovative idea to expose more low-level control over SSDs. But it failed to get properly standardized and remains a non-standarized extension to NVMe that requires vendor specific quirks for a few now mostly obsolete SSD devices. The standardized ZNS command set for NVMe has take over a lot of the approaches and allows for fully standardized operation. Remove the Linux code to support open channel SSDs as the few production deployments of the above mentioned SSDs are using userspace driver stacks instead of the fairly limited Linux support. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Javier González <javier@javigon.com> Signed-off-by: Matias Bjørling <mb@lightnvm.io> Link: https://lore.kernel.org/r/20210413105257.159260-5-matias.bjorling@wdc.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
44 lines
1.1 KiB
Text
44 lines
1.1 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Open-Channel SSD NVM configuration
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#
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menuconfig NVM
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bool "Open-Channel SSD target support (DEPRECATED)"
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depends on BLOCK
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help
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Say Y here to get to enable Open-channel SSDs.
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Open-Channel SSDs implement a set of extension to SSDs, that
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exposes direct access to the underlying non-volatile memory.
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If you say N, all options in this submenu will be skipped and disabled
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only do this if you know what you are doing.
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This code is deprecated and will be removed in Linux 5.15.
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if NVM
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config NVM_PBLK
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tristate "Physical Block Device Open-Channel SSD target"
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select CRC32
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help
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Allows an open-channel SSD to be exposed as a block device to the
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host. The target assumes the device exposes raw flash and must be
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explicitly managed by the host.
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Please note the disk format is considered EXPERIMENTAL for now.
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if NVM_PBLK
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config NVM_PBLK_DEBUG
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bool "PBlk Debug Support"
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default n
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help
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Enables debug support for pblk. This includes extra checks, more
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vocal error messages, and extra tracking fields in the pblk sysfs
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entries.
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endif # NVM_PBLK_DEBUG
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endif # NVM
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