This will allow removal notifications to be propagated to the library
user (e.g. for hotplug).
The callback is currently unused, but this at least prepares the API for
the future hotplug support.
Based on a patch by Dave Jiang <dave.jiang@intel.com>
Change-Id: I20b1c2dbf5e084e0b45a7e51205aba4514ee9a95
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Use the knowledge that both the source and destination of
nvme_copy_command() are aligned to emit the aligned variants of the
SSE2/AVX mov instructions.
Change-Id: I0a7e32a3bb10b9a1920cd85691b79fa7172eecb3
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Match the expected alignment for nvme_alloc_request() and nvme_malloc()
to allow optimized memory copy code to work even in the unit tests.
Change-Id: I546692a6df9615a12a8209618fb6159a9c9e426b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The function call of spdk_nvmf_check_pools can be
directly put in nvmf.c.
Reason: This pool is created by nvmf subsystem,
it should be recycled by this subsystem.
Change-Id: I49e49bcb56079fc25d26b1f5078a1808c2f8e189
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
Drop the RDMA-specific fields from spdk_nvmf_request and get them
directly from the command SGL in the transport-specific read function.
Change-Id: Icd06a9018a8c341213fbc8d26d3d7cbf2fb32d30
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The connection will be closed in these cases anyway, so just let the
normal connection cleanup deal with the active tx_desc.
Change-Id: I96c68d5802e189bb82b180cc3c7d7c3f4135be1f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
If the transport poll routine fails, we need to close the connection.
Change-Id: Ie534b0f05e6642c31e0450865e309a784abbe744
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
If spdk_nvmf_request_exec() fails, the connection will be closed anyway,
so just leave the tx_desc in the active array; it will be cleaned up in
the normal connection cleanup path.
Change-Id: Ie4f60bd6001658403dd7e1c6a47d40be756ef6f2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
If an invalid SGL is specified, send a response with a status code
indicating what the error was rather than silently dropping the command.
Change-Id: I12d1fd847d3bc0ea8de7698e934626c2586a7452
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make all command processing functions return a bool to indicate
asynchronous (false) or synchronous (true) completion.
Change-Id: I7c2e4d28fa473b36ff26c902e4bb69f38b64d18d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Only use SPDK_TRACE_RDMA within the RDMA transport code.
Change-Id: Ie15fd24bb142a68f3661929267ebe396b556c351
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The error case could only be reached with tx_desc != NULL in one case,
so move the cleanup code there and drop the goto.
Change-Id: I7aace6b40dd75ef8d86fb173f9d58110e929b082
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Also split the generic nvmf_trace_command() function out of
the RDMA-specific handler and move it to request.c
Change-Id: If29b89db33c5e080c9816977ae5b18b90884e775
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Also finish up the req_state -> req conversion.
Change-Id: I131dd52dcd36a790b942e06f0207a3274cc04ffc
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The overflow condition can't happen unless there is a programming error
in the nvmf_tgt library; we can only possibly receive command capsules
(sq entries from the point of view of the host) if we have posted a RDMA
Recv for the command capsule memory region.
This means that we also don't need to track sq_tail in the NVMf library.
Change-Id: I101509080c744528871e72fa46d188e2850c928a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The "immediate completion" cases in spdk_nvmf_request_exec() already
call spdk_nvmf_request_complete(), so the ret == 1 case in nvmf_recv()
is bogus.
Also fix a couple of spdk_nvmf_request_complete() calls in
nvmf_process_admin_cmd() that should be handled by its caller.
Change-Id: I41b865d5e6e7fec08087faf9c6f3da3b057a5fb2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
These are not supported (and did not actually function) in NVMe over
Fabrics. Queue creation is handled automatically when new connections
are initiated.
Change-Id: If3a10e5df2f0625537b2c453cd8c835e570fa31e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Move toward making request.c transport agnostic.
Change-Id: I25fbe74fff21a5c23138e1a6e2d40bc6a4a984ec
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make nvmf_post_rdma_read() interface generic (don't require a tx_desc).
Change-Id: I331a93eed4bb1912a47a88bb904cf392fcc364c6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This fixes an oversight that allowed in-capsule data block SGLs to
potentially refer to more than the received in-capsule data size.
It also makes spdk_nvmf_request_prep_data() less dependent on the
RDMA-specific rx_desc/tx_desc structures.
Change-Id: I34d61aca4cf5ba033849673116d16ec90488dcd4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
It is the same as spdk_nvme_cpl, aside from reserved fields.
Change-Id: I62b0718dd58c998b4d26a0d1b44ee16d37eff25d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The RDMA read and write commands can determine the desired length based
on the nvmf_request length field.
Change-Id: I97b63289556e7de3c19c5a17ecbacbbbdfc10425
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Replace the generic "msg_buf" naming with command and response.
Change-Id: I19baff43b41a5eb7db9be9d7feec33d17112e320
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The mempool functionality is never used at runtime - all bounce buffers
were immediately assigned to a rx_desc.
Change-Id: Ie2195059858e34b30b07e104739f046c13abc335
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The RDMA tx_desc and rx_desc pools were only used at startup; all
descriptors are immediately allocated and put into a queue, and the
mempool functionality was never used at runtime.
Change-Id: I2882274962550191a555c8483b8f7be2854b32ec
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This is an implementation detail of the RDMA layer.
Change-Id: Ib97d6fbd593789eed0b6e746972b8882a3320995
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This code is operating on a list owned by the RDMA
connection, so move it to rdma.c
Change-Id: I8b81f9d1ffc1df489c9b698969725ed0d1db6a06
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
These are an implementation detail of RDMA, so move
them into the RDMA portion of the connection.
Change-Id: I68d146019c5d78fbf5e9968abfd7baed2a54a2ed
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Separate out the RDMA connection from the
NVMf connection. For now, the RDMA connection
is just embedded in the NVMf connection, but
eventually they will have different lifetimes.
Change-Id: I9407d94891e22090bff90b8415d88a4ac8c3e95e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This structure will be expanded in future patches.
Change-Id: Ibb04917134243560e09a2a255844739eb33fab65
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
The request needs to know which connection specifically
it is associated with.
Change-Id: I492b9968b4d2e307b5af44edee0778478b32d2ba
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
They each only had 1 function left that belonged
in the session.c file.
Change-Id: I405902b02e9316d2dc02d3732d8bc085c2b84d31
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Only move nvmf_request definitions from nvmf_internal.h
for now. Subsequent patches will move more.
Change-Id: If47472542515fd050cc78d95540eb25beee59d2a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Instead of always defining config values, only #define options that are
enabled, so that #ifdef/#ifndef can be used. Generate #undef lines for
the disabled variables so the names are still visible in config.h.
Change-Id: Iaf56597ea6ae57b384387cc8a292d63960b611e4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Fabric commands were skipping a step, so unify all
types of requests through the same completion path.
Change-Id: I5f38a7e1cdcdf33baf71486d5ddae9f5a6157fac
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
