Instead of reimplementing handling for checking the
completion queue, nvmf_rdma_accept can now call
the general purpose poller.
Change-Id: Id2c899d1e500a8cb8491e51cc101a1bf0e167764
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
AER breaks our current model of requests/completion pairs.
Temporarily handle it by immediately re-posting the
capsule while we work on a real solution.
Change-Id: Ie7a4d88030b6fff5a11c4697eec0f024f9737f27
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Inline this code into the places that called it. These two
spots will be combined into a single path in a later patch.
Change-Id: Ice2f009ad56b783dc28ebbf1abbb877ce6000293
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This is an RDMA-specific operation, so hide it inside
the transport-specific layer.
Change-Id: Iaa097e8dde78d820547b3a39e9717c992581340b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
These can be done at the same time now that the queue depth
is known ahead of time.
Change-Id: I7ecef30ebb4311e0a1c88f37461d34534f8600bf
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Calculate queue depth into a local variable without
touching the rdma_conn.
Change-Id: Ie804ed39ddecbf59015a4e4f7aa127f1381d9080
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Make sure the trace history that is exported via shared memory is always
the same size, regardless of DPDK configuration.
Also removes the necessity of including DPDK headers from spdk/trace.h
(so we have to fix up other files to include what they use).
Change-Id: I32f88921fd95c64a9d1f4ba768ae75e2ca5d91da
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make sure no response fields are left over from the previous command in
the spdk_nvmf_request.
Change-Id: I42937e991d9dd6550fd4bc9b6d0dd66b44c6b83e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
If we connected a subsystem twice from the initiator, the second
connection will be rejected by the NVMf target, however, the previous
connection will also be impacted because we destroy the connection id
before ack the disconnect event.
Change-Id: Ib597cc68a7823524460693053898f4d6e5499eb4
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
There is no need to allocate ibv_sge structures within the RDMA request;
we can just fill them out on the stack right before submitting each
request.
Change-Id: I438ff0be2f6d07ffa933255c92c4ec964aa1b235
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Just return success or failure - the actual count was not used.
Change-Id: I26e7c4c6319af444d221d9b0f313fb7071733619
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
All of the WC events that we handle map back to a request, so look it up
before checking the opcode.
Change-Id: I1b70a773374f64387df0a21a4f7fd64b26534b14
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make sure all tracelogs in rdma.c use SPDK_TRACE_RDMA.
Change-Id: Idc3d3b6654215b5ab3ee84a106e46ffd3019cc7a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
There was only one function and a structure declaration
left.
Change-Id: I63277b4182120e7a76a925ed0bf7378ec7c23f20
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
These can be simplified and merged into the subsystem.
Remove the concept of mappings from subsystems and replace
it with a list of hosts and ports. The host is optional -
not specifying a host means any host can connect.
Change-Id: Ib3786acb40a34b7e10935af55f4b6756d40cc906
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Make the transport responsible for filling out the fabric-specific
details in the discovery log entry.
Change-Id: I41d871c605becd557dca18f8ef7e80da66950257
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Make the core NVMf to transport interface generic and allow for multiple
transport types to be registered.
Change-Id: I0a2767a47d55999c45f788ae1318bb50af60ab4e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Instead of starting the connection poller immediately upon
the connect event, wait for the first connect capsule to
start the poller.
This builds toward associating all connections with the same
session with the same lcore.
Change-Id: I7f08b2dd34585d093ad36a4ebca63c5f782dcf14
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Pull out the duplicated min checks against the ibdev_attr values.
Change-Id: I774c355ba669486afde5c05c55a4ed653723db98
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Drop the debug print in conn.c that was the only user.
We still have the connect data structure when determining the connection
type, and after that point, the queue ID is not needed.
Change-Id: Ida9e170099f977ec6b84478874863c40d6f7d8a1
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Use the number of devices returned by ibv_get_device_list() instead of
stopping at 4.
While we're here, drop the unused MAX_SESSIONS_PER_DEVICE definition
too.
Change-Id: I21ca6c6c95b7f2cccc1de4d0a34b95217a522bfc
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
These can be isolated in rdma.c rather than being part of the generic
transport API.
Change-Id: Idc2b969a2f7685420cda2f7c4aa12495ffc3fcbc
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Clean up everything that isn't strictly necessary in rdma.h.
Change-Id: Ied9acbed5f5b64860eae39816cdcb74620009a79
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This essentially turns the current nesting (of RDMA conn inside NVMf
conn) inside out. Now the transport owns the connection structure and
allocates it when necessary.
Change-Id: Ib5ca84e2a57b16741d84943a5b858e9c3297d44b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This sets up the RDMA layer to be able to embed the NVMf conn inside the
RDMA conn.
Change-Id: I5e3714ac8503826504d78d06fb5eaafabd025bb8
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The NVMf target set the maximum data transfer size(MDTS) to the default value
of 128KB now, and the initiator driver will read the value and set it to the
block layer, so each command sent from initiator will not runoff 128KB.
Change-Id: I1d4f259e887b2fc70c7f1c5406c07c58f7fc9b8d
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
If any completion indicates an error, we need to close the connection.
Change-Id: I50b30aa692ae121932f1baec32f713422ff415ed
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The bb_sgl must follow recv_sgl make the logic obscure.
Change-Id: I8d47477986efd8f2d4ed964ab9373b7f157af274
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Admin commands technically don't allow inline data,
but there is nothing from preventing us from posting
a recv buffer that could handle inline data. It just
won't be used for incoming admin capsules.
Change-Id: I3e7e4406e01ab870654a166d52221c11fc0ac683
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
The queue type and queue depth are not known until
the connect capsule is processed. Delay allocating more
than 1 recv wqe until then.
Change-Id: I0e68c24bc3d6f37043946de6c2cbcb3198cd5d1b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Currently, the recv wqe is re-posted immediately. This
closes a small window where we could get more I/O
than we could handle.
Change-Id: I9b0b1f0cc526069033b9e04f170195c4fb130e37
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This is going to be used elsehwere in teh code, so
name it according to the public namign convention
and make it public.
Change-Id: Id5fd57e78e146f3235741a251bb30244d6530f2c
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This is going to be used elsewhere in the code, so
name it according to the public naming convention
and make it public.
Change-Id: I0dcb88e902c5e609fe6acd06ad06743203fcaa60
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Break out the code to allocate a single rdma request
to be used elsewhere.
Change-Id: I687ce5ec862831fed5300157bfb4bf980d22c782
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
The queue depth allowed for incoming commands is set
such that we can do the maximum number of RDMA reads
necessary. There is never a case where a READ will need
to be queued anymore.
Change-Id: I4f7e7f4a59f6358065b82f36a5e22744af210d07
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
