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Commit e399441d authored by James Smart's avatar James Smart Committed by Sagi Grimberg
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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: default avatarJames Smart <james.smart@broadcom.com>
Reviewed-by: default avatarJay Freyensee <james_p_freyensee@linux.intel.com>
Reviewed-by: default avatarJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent d6d20012

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -8665,6 +8665,7 @@ L: linux-nvme@lists.infradead.org 
S:	Supported

F:	include/linux/nvme-fc.h

F:	include/linux/nvme-fc-driver.h

F:	drivers/nvme/host/fc.c



NVMEM FRAMEWORK

M:	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

drivers/nvme/host/Kconfig

+17 −0
Original line number Diff line number Diff line
@@ -43,3 +43,20 @@ config NVME_RDMA 
	  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.

drivers/nvme/host/Makefile

+3 −0
Original line number Diff line number Diff line
@@ -2,6 +2,7 @@ obj-$(CONFIG_NVME_CORE) += nvme-core.o 
obj-$(CONFIG_BLK_DEV_NVME)		+= nvme.o

obj-$(CONFIG_NVME_FABRICS)		+= nvme-fabrics.o

obj-$(CONFIG_NVME_RDMA)			+= nvme-rdma.o

obj-$(CONFIG_NVME_FC)			+= nvme-fc.o



nvme-core-y				:= core.o

nvme-core-$(CONFIG_BLK_DEV_NVME_SCSI)	+= scsi.o
@@ -12,3 +13,5 @@ nvme-y += pci.o 
nvme-fabrics-y				+= fabrics.o



nvme-rdma-y				+= rdma.o



nvme-fc-y				+= fc.o

drivers/nvme/host/fc.c

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