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# SPDX-License-Identifier: GPL-2.0-only
config NVME_CORE
tristate
select BLK_DEV_INTEGRITY_T10 if BLK_DEV_INTEGRITY
config BLK_DEV_NVME
tristate "NVM Express block device"
depends on PCI && BLOCK
select NVME_CORE
help
The NVM Express driver is for solid state drives directly
connected to the PCI or PCI Express bus. If you know you
don't have one of these, it is safe to answer N.
To compile this driver as a module, choose M here: the
module will be called nvme.
config NVME_MULTIPATH
bool "NVMe multipath support"
depends on NVME_CORE
help
This option enables support for multipath access to NVMe
subsystems. If this option is enabled only a single
/dev/nvmeXnY device will show up for each NVMe namespace,
even if it is accessible through multiple controllers.
config NVME_VERBOSE_ERRORS
bool "NVMe verbose error reporting"
depends on NVME_CORE
help
This option enables verbose reporting for NVMe errors. The
error translation table will grow the kernel image size by
about 4 KB.
config NVME_HWMON
bool "NVMe hardware monitoring"
depends on (NVME_CORE=y && HWMON=y) || (NVME_CORE=m && HWMON)
help
This provides support for NVMe hardware monitoring. If enabled,
a hardware monitoring device will be created for each NVMe drive
in the system.
config NVME_FABRICS
select NVME_CORE
tristate
config NVME_RDMA
tristate "NVM Express over Fabrics RDMA host driver"
depends on INFINIBAND && INFINIBAND_ADDR_TRANS && BLOCK
select NVME_FABRICS
select SG_POOL
help
This provides support for the NVMe over Fabrics protocol using
the RDMA (Infiniband, RoCE, iWarp) transport. This allows you
to use remote block devices exported using the NVMe protocol set.
To configure a NVMe over Fabrics controller use the nvme-cli tool
from https://github.com/linux-nvme/nvme-cli.
If unsure, say N.
config NVME_FC
tristate "NVM Express over Fabrics FC host driver"
depends on BLOCK
depends on HAS_DMA
select NVME_FABRICS
select SG_POOL
help
This provides support for the NVMe over Fabrics protocol using
the FC transport. This allows you to use remote block devices
exported using the NVMe protocol set.
To configure a NVMe over Fabrics controller use the nvme-cli tool
from https://github.com/linux-nvme/nvme-cli.
If unsure, say N.
config NVME_TCP
tristate "NVM Express over Fabrics TCP host driver"
depends on INET
depends on BLOCK
select NVME_FABRICS
select CRYPTO
select CRYPTO_CRC32C
help
This provides support for the NVMe over Fabrics protocol using
the TCP transport. This allows you to use remote block devices
exported using the NVMe protocol set.
To configure a NVMe over Fabrics controller use the nvme-cli tool
from https://github.com/linux-nvme/nvme-cli.
If unsure, say N.
config NVME_TCP_TLS
bool "NVMe over Fabrics TCP TLS encryption support"
depends on NVME_TCP
select NVME_COMMON
select NVME_KEYRING
select NET_HANDSHAKE
select KEYS
help
Enables TLS encryption for NVMe TCP using the netlink handshake API.
The TLS handshake daemon is availble at
https://github.com/oracle/ktls-utils.
If unsure, say N.
config NVME_AUTH
bool "NVM Express over Fabrics In-Band Authentication"
depends on NVME_CORE
select NVME_COMMON
select CRYPTO
select CRYPTO_HMAC
select CRYPTO_SHA256
select CRYPTO_SHA512
select CRYPTO_DH
select CRYPTO_DH_RFC7919_GROUPS
help
This provides support for NVMe over Fabrics In-Band Authentication.
If unsure, say N.
config NVME_APPLE
tristate "Apple ANS2 NVM Express host driver"
depends on OF && BLOCK
depends on APPLE_RTKIT && APPLE_SART
depends on ARCH_APPLE || COMPILE_TEST
select NVME_CORE
help
This provides support for the NVMe controller embedded in Apple SoCs
such as the M1.
To compile this driver as a module, choose M here: the
module will be called nvme-apple.
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