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linux-sg2042/drivers/nvme/host/Kconfig

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nvme: split pci module out of core module NVMe over Fabrics drivers are going to reuse the core, so splits nvme.ko into 2 modules: nvme-core.ko: the core part nvme.ko: the PCI driver Export symbols from nvme-core.ko. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-11 02:03:32 +08:00
config NVME_CORE
tristate
nvme: move to a new drivers/nvme/host directory This patch moves the NVMe driver from drivers/block/ to its own new drivers/nvme/host/ directory. This is in preparation of splitting the current monolithic driver up and add support for the upcoming NVMe over Fabrics standard. The drivers/nvme/host/ is chose to leave space for a NVMe target implementation in addition to this host side driver. Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com> [hch: rebased, renamed core.c to pci.c, slight tweaks] Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-10 00:17:06 +08:00
config BLK_DEV_NVME
tristate "NVM Express block device"
NVMe: Add explicit block config dependency The nvme driver was moved from drivers/block, losing our implicit dependency on CONFIG_BLOCK. This makes it an explicit driver dependency. Reported-by: Jim Davis <jim.epost@gmail.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-13 01:37:38 +08:00
depends on PCI && BLOCK
nvme: split pci module out of core module NVMe over Fabrics drivers are going to reuse the core, so splits nvme.ko into 2 modules: nvme-core.ko: the core part nvme.ko: the PCI driver Export symbols from nvme-core.ko. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-11 02:03:32 +08:00
select NVME_CORE
nvme: move to a new drivers/nvme/host directory This patch moves the NVMe driver from drivers/block/ to its own new drivers/nvme/host/ directory. This is in preparation of splitting the current monolithic driver up and add support for the upcoming NVMe over Fabrics standard. The drivers/nvme/host/ is chose to leave space for a NVMe target implementation in addition to this host side driver. Signed-off-by: Jay Sternberg <jay.e.sternberg@intel.com> [hch: rebased, renamed core.c to pci.c, slight tweaks] Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-10-10 00:17:06 +08:00
---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.
nvme: make SG_IO support optional Translation SCSI commands to NVMe commands is rather pointless in general as applications must not expext to be able to use SCSI commands on a generic block device. Make the huge translation layer optional and hope no one will ever enable it in the future. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-12-24 22:27:02 +08:00
config BLK_DEV_NVME_SCSI
bool "SCSI emulation for NVMe device nodes"
nvme: split pci module out of core module NVMe over Fabrics drivers are going to reuse the core, so splits nvme.ko into 2 modules: nvme-core.ko: the core part nvme.ko: the PCI driver Export symbols from nvme-core.ko. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-11 02:03:32 +08:00
depends on NVME_CORE
nvme: make SG_IO support optional Translation SCSI commands to NVMe commands is rather pointless in general as applications must not expext to be able to use SCSI commands on a generic block device. Make the huge translation layer optional and hope no one will ever enable it in the future. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-12-24 22:27:02 +08:00
---help---
This adds support for the SG_IO ioctl on the NVMe character
NVMe: small typo in section BLK_DEV_NVME_SCSI of host/Kconfig "as well as " is miss typed "as well a " in section "config BLK_DEV_NVME_SCSI" Signed-off-by: Wang Sheng-Hui <shhuiw@foxmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-04-20 10:04:32 +08:00
and block devices nodes, as well as a translation for a small
nvme: make SG_IO support optional Translation SCSI commands to NVMe commands is rather pointless in general as applications must not expext to be able to use SCSI commands on a generic block device. Make the huge translation layer optional and hope no one will ever enable it in the future. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-12-24 22:27:02 +08:00
number of selected SCSI commands to NVMe commands to the NVMe
driver. If you don't know what this means you probably want
nvme: fix Kconfig description for BLK_DEV_NVME_SCSI Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-02-10 01:21:22 +08:00
to say N here, unless you run a distro that abuses the SCSI
emulation to provide stable device names for mount by id, like
some OpenSuSE and SLES versions.
nvme-fabrics: add a generic NVMe over Fabrics library The NVMe over Fabrics library provides an interface for both transports and the nvme core to handle fabrics specific commands and attributes independent of the underlying transport. In addition, the fabrics library adds a misc device interface that allow actually creating a fabrics controller, as we can't just autodiscover it like in the PCI case. The nvme-cli utility has been enhanced to use this interface to support fabric connect and discovery. Signed-off-by: Armen Baloyan <armenx.baloyan@intel.com>, Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com>, Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-06-13 22:45:26 +08:00
config NVME_FABRICS
tristate
nvme-rdma: add a NVMe over Fabrics RDMA host driver This patch implements the RDMA host (initiator in SCSI speak) driver. It can be used to connect to remote NVMe over Fabrics controllers over Infiniband, RoCE or iWarp, and uses the existing NVMe core driver as well a the new fabrics library. To connect to all NVMe over Fabrics controller reachable on a given taget port using RDMA/CM use the following command: nvme connect-all -t rdma -a $IPADDR This requires the latest version of nvme-cli with Fabrics support. Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-06 20:55:52 +08:00
config NVME_RDMA
tristate "NVM Express over Fabrics RDMA host driver"
nvme: make NVME_RDMA depend on BLOCK Commit aa71987472a9 ("nvme: fabrics drivers don't need the nvme-pci driver") removed the dependency on BLK_DEV_NVME, but the cdoe does depend on the block layer (which used to be an implicit dependency through BLK_DEV_NVME). Otherwise you get various errors from the kbuild test robot random config testing when that happens to hit a configuration with BLOCK device support disabled. Cc: Christoph Hellwig <hch@lst.de> Cc: Jay Freyensee <james_p_freyensee@linux.intel.com> Cc: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-09-12 05:41:49 +08:00
depends on INFINIBAND && BLOCK
nvme: fabrics drivers don't need the nvme-pci driver So select the NVME_CORE symbol instead of depending on BLK_DEV_NVME. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jay Freyensee <james_p_freyensee@linux.intel.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
2016-08-19 02:16:36 +08:00
select NVME_CORE
nvme-rdma: add a NVMe over Fabrics RDMA host driver This patch implements the RDMA host (initiator in SCSI speak) driver. It can be used to connect to remote NVMe over Fabrics controllers over Infiniband, RoCE or iWarp, and uses the existing NVMe core driver as well a the new fabrics library. To connect to all NVMe over Fabrics controller reachable on a given taget port using RDMA/CM use the following command: nvme connect-all -t rdma -a $IPADDR This requires the latest version of nvme-cli with Fabrics support. Signed-off-by: Jay Freyensee <james.p.freyensee@intel.com> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Tested-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2016-07-06 20:55:52 +08:00
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.
nvme-fabrics: Add host support for FC transport Implements the FC-NVME T11 definition of how nvme fabric capsules are performed on an FC fabric. Utilizes a lower-layer API to FC host adapters to send/receive FC-4 LS operations and FCP operations that comprise NVME over FC operation. The T11 definitions for FC-4 Link Services are implemented which create NVMeOF connections. Implements the hooks with blk-mq to then submit admin and io requests to the different connections. Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Jay Freyensee <james_p_freyensee@linux.intel.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
2016-12-02 16:28:42 +08:00
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.