linux-toradex.git/drivers/nvme/target/Kconfig, branch v5.0

nvmet-tcp: add NVMe over TCP target driver

2018-12-13T08:58:57+00:00

This patch implements the TCP transport driver for the NVMe over Fabrics
target stack. This allows exporting NVMe over Fabrics functionality over
good old TCP/IP.

The driver implements the TP 8000 of how nvme over fabrics capsules and
data are encapsulated in nvme-tcp pdus and exchaged on top of a TCP byte
stream. nvme-tcp header and data digest are supported as well.

Signed-off-by: Sagi Grimberg 
Signed-off-by: Roy Shterman 
Signed-off-by: Solganik Alexander 
Signed-off-by: Christoph Hellwig

IB: Revert "remove redundant INFINIBAND kconfig dependencies"

2018-05-28T16:40:16+00:00

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: 9533b292a7ac ("IB: remove redundant INFINIBAND kconfig dependencies")
Signed-off-by: Arnd Bergmann 
Acked-by: Greg Thelen 
Signed-off-by: Jason Gunthorpe

IB: remove redundant INFINIBAND kconfig dependencies

2018-05-09T12:51:03+00:00

INFINIBAND_ADDR_TRANS depends on INFINIBAND.  So there's no need for
options which depend INFINIBAND_ADDR_TRANS to also depend on INFINIBAND.
Remove the unnecessary INFINIBAND depends.

Signed-off-by: Greg Thelen 
Signed-off-by: Doug Ledford

nvmet-rdma: depend on INFINIBAND_ADDR_TRANS

2018-04-27T15:15:43+00:00

NVME_TARGET_RDMA code depends on INFINIBAND_ADDR_TRANS provided symbols.
So declare the kconfig dependency.  This is necessary to allow for
enabling INFINIBAND without INFINIBAND_ADDR_TRANS.

Signed-off-by: Greg Thelen 
Cc: Tarick Bedeir 
Signed-off-by: Doug Ledford

nvmet/rdma: Use sgl_alloc() and sgl_free()

2018-01-06T16:18:00+00:00

Use the sgl_alloc() and sgl_free() functions instead of open coding
these functions.

Signed-off-by: Bart Van Assche 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Hannes Reinecke 
Cc: Keith Busch 
Cc: Christoph Hellwig 
Cc: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvmet/fc: Use sgl_alloc() and sgl_free()

2018-01-06T16:18:00+00:00

Use the sgl_alloc() and sgl_free() functions instead of open coding
these functions.

Signed-off-by: Bart Van Assche 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Hannes Reinecke 
Reviewed-by:  James Smart 
Cc: Keith Busch 
Cc: Christoph Hellwig 
Cc: Sagi Grimberg 
Signed-off-by: Jens Axboe

nvme-fabrics: Add FC LLDD loopback driver to test FC-NVME

2016-12-06T13:51:48+00:00

Add FC LLDD loopback driver to test FC host and target transport within
nvme-fabrics

To aid in the development and testing of the lower-level api of the FC
transport, this loopback driver has been created to act as if it were a
FC hba driver supporting both the host interfaces as well as the target
interfaces with the nvme FC transport.

Signed-off-by: James Smart 
Reviewed-by: Jay Freyensee 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Christoph Hellwig

nvme-fabrics: Add target support for FC transport

2016-12-06T08:17:56+00:00

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 perform the FCP transactions
necessary to perform and FCP IO request for NVME.

The T11 definitions for FC-4 Link Services are implemented which create
NVMeOF connections.  Implements the hooks with nvmet layer to pass NVME
commands to it for processing and posting of data/response base to the
host via the different connections.

Signed-off-by: James Smart 
Reviewed-by: Jay Freyensee 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Christoph Hellwig

nvme: fabrics drivers don't need the nvme-pci driver

2016-08-19T11:22:28+00:00

So select the NVME_CORE symbol instead of depending on BLK_DEV_NVME.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jay Freyensee 
Signed-off-by: Sagi Grimberg

nvme-loop: fix nvme-loop Kconfig dependencies

2016-07-12T15:36:40+00:00

I ran into the same problem on NVME_TARGET_RDMA now,
which otherwise needs dependencies on both CONFIG_BLOCK and
CONFIGFS_FS:

    warning: (NVME_TARGET_LOOP && NVME_TARGET_RDMA) selects NVME_TARGET which has unmet direct dependencies (BLOCK && CONFIGFS_FS)
    0xA002B368 Mon Jul 11 18:00:45 CEST 2016 failed
    In file included from ../drivers/nvme/target/core.c:16:0:
    drivers/nvme/target/nvmet.h:222:14: error: field 'inline_bio' has incomplete type
      struct bio  inline_bio;
                  ^~~~~~~~~~
    drivers/nvme/target/core.c: In function 'nvmet_async_event_work':
    drivers/nvme/target/core.c:98:3: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration]
       kfree(aen);
       ^~~~~
    ../drivers/nvme/target/core.c: In function 'nvmet_ns_enable':
    ../drivers/nvme/target/core.c:269:13: error: implicit declaration of function 'blkdev_get_by_path' [-Werror=implicit-function-declaration]
      ns->bdev = blkdev_get_by_path(ns->device_path, FMODE_READ | FMODE_WRITE,

Folding in my patch below should address that too.

Signed-off-by: Arnd Bergmann 
Reported-by: Christoph Hellwig 
Signed-off-by: Jens Axboe