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>
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>
The nvmf_request structure holds the pair of pointers
for rx_desc and tx_desc.
Change-Id: I3e735979bbdcdc0e70ad78762e289849d41158ba
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
This moves some definitions from nvmf_spec.h to
nvme_spec.h based on the latest publication.
Change-Id: I51b0abd16f7d034696239894aea5089f8ac70c40
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Swap the order of checks in the failure check - if rc is not 0, addr may
be garbage.
Change-Id: I110710efd00397c777d59ac8b219ba3cc2156596
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The nvmf_request object is generic and is mapped 1:1 with rx_desc.
Change-Id: I397224a3859c3c93d6eca99f7ba7c53ce7963f57
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Instead of searching the global list of connections to find a matching
cm_id, we can just store the pointer back to the spdk_nvmf_conn in the
rdma_cm_id context field.
Change-Id: I39ea16be6a633a1136d65743747b63b600f20e63
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
All of the variables are private to conn.c, so they don't need global
visibility.
Change-Id: I7c24cfc6249a9f8164b162b4b8de0e24c452e0df
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
It is always set to nvmf_process_async_completion and is only used
within the library.
Also rename nvmf_process_async_completion to spdk_nvmf_request_complete
to clarify its purpose.
Change-Id: Ie737fb60688329bfe329a8553c4a40ff2e5f8f1d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Create spdk_nvmf_request_prep_data(), which handles SGL processing and
data transfer for all command types, and spdk_nvmf_request_exec(), which
executes a command after data transfer has completed.
Change-Id: I51c2196260dd0686db8acca4d8f7c93e17618c2f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
The pending type can be determined based on the command opcode.
This also moves the "issue pending RDMA reads" case out of the I/O queue
handling into the generic continuation code; this should not make any
difference for the current case, since the Fabrics Connect command is
the only other continuation case currently, and there cannot be any
pending RDMA reads in that case.
Change-Id: Idddfa496b6e5b7e6da772aa3ab1b9d1a5344771f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
nvmf_connect_continue() no longer needs the RDMA-specific tx_desc.
Change-Id: I95f6938063e9853aa7dcd419f488b91422ff9b60
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Let the calling function handle the tx_desc if nvmf_connect_continue()
fails.
Change-Id: I25a8cbc4c3be0608bcec8db2fb8c50e55fbe3e8c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Everything necessary for processing an admin command is now stored in
nvmf_request.
Change-Id: I74e75a5b7bb3b406ad167c2b31cab1af7a1f270a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Everything necessary for processing an I/O is now stored in
nvmf_request.
Change-Id: I3f390707ebe83ea66a116dcfda4d0388a6823629
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Keep a pointer to the local bounce buffer in the transport-agnostic
struct nvmf_request rather than groveling in tx_desc/rx_desc to get it.
Change-Id: Ic328d8e2b3a15759ccb149a89fb3562e928ca500
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Now that we have xfer to track data direction, the length field can be
populated correctly for all transfers (including in-capsule data).
Change-Id: I7b2228f3fac80aab983a4103ba095c7bc38e0b21
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
This field is used to decide whether data needs to be transferred back
to the host after a command is completed.
Previously, this was determined using the length field, and length was
cleared to 0 after a transfer was completed. However, length will be
used in future patches after a host to controller transfer completes, so
we need some other way to tell what kind of data transfer is required.
Change-Id: I6b27cf7816908394735fc95c15bd5eb40a7c0157
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
vtophys() was checking for out-of-range addresses incorrectly: vfn_2mb
is already shifted to account for 2 MB hugepages, but it was being
compared with a mask that did not account for the shift. This would
allow out-of-bounds access to the 128tb map array for certain invalid
addresses (it had no effect on addresses within the valid userspace
range).
Change-Id: Ida7455595e586494c9025f9ba65d050abb16b1b9
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Other subsystems can depend on this one and then use
SPDK_RPC_REGISTER to register RPC functions.
Change-Id: I557f774331ce7146d299d06b3f81426e2103a11f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Since we used u64 to mask CPU cores, the available number of CPU
is 64, for default RTE_MAX_LCORE in DPDK, the value is 128, in some
cases(e.g.: when nr_io_queues > 4) we can get the wrong lcore ID.
Change-Id: Icc334b1bf5b068a310839118be341e61071cff65
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
A transfer using less than the total bounce buffer size is a normal
occurrence and not worthy of a tracelog. Also drop the pointless
conditional.
Change-Id: Ibcdcf693fea439d5034fa51b08b3fbd8fd7df8f2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Avoid using the RDMA-specific tx_desc when the transport-agnostic
nvmf_request will suffice.
Change-Id: Id35bbdfb353cb72e0feb4f5af19e5bd5c86d3ff4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Should set tx_desc=NULL here. If not,When
nvmf_post_rdma_recv(conn, rx_desc) fails,
we would make tx_desc deactive again, and
this is wrong.
Change-Id: Ieabc7e3864b7f124b003d052f66ab8799a1d632e
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
