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# SPDX-License-Identifier: GPL-2.0-only
config NVME_TARGET
tristate "NVMe Target support"
depends on BLOCK
depends on CONFIGFS_FS
select BLK_DEV_INTEGRITY_T10 if BLK_DEV_INTEGRITY
select SGL_ALLOC
help
This enabled target side support for the NVMe protocol, that is
it allows the Linux kernel to implement NVMe subsystems and
controllers and export Linux block devices as NVMe namespaces.
You need to select at least one of the transports below to make this
functionality useful.
To configure the NVMe target you probably want to use the nvmetcli
tool from http://git.infradead.org/users/hch/nvmetcli.git.
config NVME_TARGET_PASSTHRU
bool "NVMe Target Passthrough support"
depends on NVME_TARGET
depends on NVME_CORE=y || NVME_CORE=NVME_TARGET
help
This enables target side NVMe passthru controller support for the
NVMe Over Fabrics protocol. It allows for hosts to manage and
directly access an actual NVMe controller residing on the target
side, including executing Vendor Unique Commands.
If unsure, say N.
config NVME_TARGET_LOOP
tristate "NVMe loopback device support"
depends on NVME_TARGET
select NVME_FABRICS
select SG_POOL
help
This enables the NVMe loopback device support, which can be useful
to test NVMe host and target side features.
If unsure, say N.
config NVME_TARGET_RDMA
tristate "NVMe over Fabrics RDMA target support"
depends on INFINIBAND && INFINIBAND_ADDR_TRANS
depends on NVME_TARGET
select SGL_ALLOC
help
This enables the NVMe RDMA target support, which allows exporting NVMe
devices over RDMA.
If unsure, say N.
config NVME_TARGET_FC
tristate "NVMe over Fabrics FC target driver"
depends on NVME_TARGET
depends on HAS_DMA
select SGL_ALLOC
help
This enables the NVMe FC target support, which allows exporting NVMe
devices over FC.
If unsure, say N.
config NVME_TARGET_FCLOOP
tristate "NVMe over Fabrics FC Transport Loopback Test driver"
depends on NVME_TARGET
select NVME_FABRICS
select SG_POOL
depends on NVME_FC
depends on NVME_TARGET_FC
help
This enables the NVMe FC loopback test support, which can be useful
to test NVMe-FC transport interfaces.
If unsure, say N.
config NVME_TARGET_TCP
tristate "NVMe over Fabrics TCP target support"
depends on INET
depends on NVME_TARGET
help
This enables the NVMe TCP target support, which allows exporting NVMe
devices over TCP.
If unsure, say N.
config NVME_TARGET_TCP_TLS
bool "NVMe over Fabrics TCP target TLS encryption support"
depends on NVME_TARGET_TCP
select NVME_COMMON
select NVME_KEYRING
select NET_HANDSHAKE
select KEYS
help
Enables TLS encryption for the NVMe TCP target using the netlink handshake API.
The TLS handshake daemon is available at
https://github.com/oracle/ktls-utils.
If unsure, say N.
config NVME_TARGET_AUTH
bool "NVMe over Fabrics In-band Authentication support"
depends on NVME_TARGET
select NVME_COMMON
select CRYPTO
select CRYPTO_HMAC
select CRYPTO_SHA256
select CRYPTO_SHA512
select CRYPTO_DH
select CRYPTO_DH_RFC7919_GROUPS
help
This enables support for NVMe over Fabrics In-band Authentication
If unsure, say N.
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