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When the NVME target code is built-in but its TCP frontend is a loadable module, enabling keyring support causes a link failure: x86_64-linux-ld: vmlinux.o: in function `nvmet_ports_make': configfs.c:(.text+0x100a211): undefined reference to `nvme_keyring_id' The problem is that CONFIG_NVME_TARGET_TCP_TLS is a 'bool' symbol that depends on the tristate CONFIG_NVME_TARGET_TCP, so any 'select' from it inherits the state of the tristate symbol rather than the intended CONFIG_NVME_TARGET one that contains the actual call. The same thing is true for CONFIG_KEYS, which itself is required for NVME_KEYRING. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20231122224719.4042108-3-arnd@kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
109 lines
3.0 KiB
Plaintext
109 lines
3.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config NVME_TARGET
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tristate "NVMe Target support"
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depends on BLOCK
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depends on CONFIGFS_FS
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select NVME_KEYRING if NVME_TARGET_TCP_TLS
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select KEYS if NVME_TARGET_TCP_TLS
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select BLK_DEV_INTEGRITY_T10 if BLK_DEV_INTEGRITY
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select SGL_ALLOC
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help
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This enabled target side support for the NVMe protocol, that is
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it allows the Linux kernel to implement NVMe subsystems and
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controllers and export Linux block devices as NVMe namespaces.
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You need to select at least one of the transports below to make this
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functionality useful.
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To configure the NVMe target you probably want to use the nvmetcli
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tool from http://git.infradead.org/users/hch/nvmetcli.git.
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config NVME_TARGET_PASSTHRU
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bool "NVMe Target Passthrough support"
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depends on NVME_TARGET
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depends on NVME_CORE=y || NVME_CORE=NVME_TARGET
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help
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This enables target side NVMe passthru controller support for the
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NVMe Over Fabrics protocol. It allows for hosts to manage and
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directly access an actual NVMe controller residing on the target
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side, including executing Vendor Unique Commands.
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If unsure, say N.
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config NVME_TARGET_LOOP
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tristate "NVMe loopback device support"
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depends on NVME_TARGET
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select NVME_FABRICS
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select SG_POOL
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help
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This enables the NVMe loopback device support, which can be useful
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to test NVMe host and target side features.
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If unsure, say N.
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config NVME_TARGET_RDMA
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tristate "NVMe over Fabrics RDMA target support"
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depends on INFINIBAND && INFINIBAND_ADDR_TRANS
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depends on NVME_TARGET
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select SGL_ALLOC
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help
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This enables the NVMe RDMA target support, which allows exporting NVMe
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devices over RDMA.
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If unsure, say N.
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config NVME_TARGET_FC
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tristate "NVMe over Fabrics FC target driver"
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depends on NVME_TARGET
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depends on HAS_DMA
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select SGL_ALLOC
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help
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This enables the NVMe FC target support, which allows exporting NVMe
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devices over FC.
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If unsure, say N.
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config NVME_TARGET_FCLOOP
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tristate "NVMe over Fabrics FC Transport Loopback Test driver"
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depends on NVME_TARGET
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select NVME_FABRICS
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select SG_POOL
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depends on NVME_FC
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depends on NVME_TARGET_FC
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help
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This enables the NVMe FC loopback test support, which can be useful
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to test NVMe-FC transport interfaces.
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If unsure, say N.
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config NVME_TARGET_TCP
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tristate "NVMe over Fabrics TCP target support"
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depends on INET
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depends on NVME_TARGET
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help
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This enables the NVMe TCP target support, which allows exporting NVMe
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devices over TCP.
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If unsure, say N.
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config NVME_TARGET_TCP_TLS
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bool "NVMe over Fabrics TCP target TLS encryption support"
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depends on NVME_TARGET_TCP
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select NET_HANDSHAKE
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help
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Enables TLS encryption for the NVMe TCP target using the netlink handshake API.
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The TLS handshake daemon is available at
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https://github.com/oracle/ktls-utils.
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If unsure, say N.
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config NVME_TARGET_AUTH
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bool "NVMe over Fabrics In-band Authentication support"
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depends on NVME_TARGET
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select NVME_AUTH
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help
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This enables support for NVMe over Fabrics In-band Authentication
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If unsure, say N.
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