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linux-next/drivers/nvme/host/Kconfig
Arnd Bergmann 533d1daea8 IB: Revert "remove redundant INFINIBAND kconfig dependencies"
Several subsystems depend on INFINIBAND_ADDR_TRANS, which in turn depends
on INFINIBAND. However, when with CONFIG_INIFIBAND=m, this leads to a
link error when another driver using it is built-in. The
INFINIBAND_ADDR_TRANS dependency is insufficient here as this is
a 'bool' symbol that does not force anything to be a module in turn.

fs/cifs/smbdirect.o: In function `smbd_disconnect_rdma_work':
smbdirect.c:(.text+0x1e4): undefined reference to `rdma_disconnect'
net/9p/trans_rdma.o: In function `rdma_request':
trans_rdma.c:(.text+0x7bc): undefined reference to `rdma_disconnect'
net/9p/trans_rdma.o: In function `rdma_destroy_trans':
trans_rdma.c:(.text+0x830): undefined reference to `ib_destroy_qp'
trans_rdma.c:(.text+0x858): undefined reference to `ib_dealloc_pd'

Fixes: 9533b292a7 ("IB: remove redundant INFINIBAND kconfig dependencies")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-05-28 10:40:16 -06:00

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config NVME_CORE
tristate
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 namespaces,
even if it is accessible through multiple controllers.
config NVME_FABRICS
tristate
config NVME_RDMA
tristate "NVM Express over Fabrics RDMA host driver"
depends on INFINIBAND && INFINIBAND_ADDR_TRANS && BLOCK
select NVME_CORE
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_CORE
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.