Commit Graph

554 Commits

Author SHA1 Message Date
Ziye Yang
6f95c32590 lib/nvmf: Create a shared buffer waiting list
Our previous implementation makes the buffer allocation
in an unfair way and this patch can solve this issue.

With this patch, we can use limited buffer to support
high I/O depth.

Change-Id: I0e7a073c0b4539090218aa461d50620287bb4b63
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/382528
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-10-18 12:50:51 -04:00
Ziye Yang
847c1c3ad4 nvmf/rdma: Remove rdmq_req if there is error or obtaining buf.
For the normal case, we can avoid re-adding it into
pending data buf list if there is no buffer.

Change-Id: I400e3c6c60bb1d1df13782faf2dd32ca2bd897a3
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/382402
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-10-13 15:13:31 -04:00
Daniel Verkamp
d2582f88ab nvmf: simplify spdk_nvmf_request_exec()
A few small tweaks to make this function easier to read:
- Return void (the return value is always 0 and never used)
- Split out Fabrics/admin queue processing 'if' block
- Remove unnecessary switch on status (it can only be 2 values)

Additionally, simplify the I/O command checking logic: we don't need to
check for CC.EN = 1, because it is only possible for I/O queues to be
created after CC.EN is set to 1.

Change-Id: Ib4c39a6e0d9e28912dbb0f0737fd223be0a80207
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/379218
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-29 13:03:24 -04:00
Daniel Verkamp
8011d8c0e6 nvmf: don't allow 0xFFFFFFFF as a NSID
FFFFFFFFh is reserved for the broadcast NSID and can't be used as a
NSID for a specific namespace.

Change-Id: I64a3cc80993d7b34324823462f4d992d1415773f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/378849
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2017-09-19 17:16:59 -04:00
Daniel Verkamp
5323a02613 nvmf: move fabrics command processing to ctrlr.c
This is the final set of command processing functions (admin and I/O
commands were already handled in ctrlr.c), and it allows us to clean up
the ctrlr.c API some more.

Change-Id: Ic73c56c44d7fd64bfaa72b6f5f6f0984b4dfa053
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/378018
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-19 17:14:52 -04:00
Daniel Verkamp
4ff0eba871 nvmf: merge connect handling into single function
Combine nvmf_process_connect() into spdk_nvmf_ctrlr_connect() to
simplify the logic and keep it all together in one function.

This also allows us to move the invalid connect helper function and
macros back out of the header into a static function in one file.

Change-Id: Ia3bd80d0309392520d51bf8f5830d3f23332c5e3
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/378016
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-19 17:14:52 -04:00
Daniel Verkamp
6b8096d815 nvmf: remove subsystem IDs
These are not used in the current code.

We introduced the concept of a subsystem ID to prepare for a future
scaling strategy, but the poll group scaling strategy turns out to
not need subsystem IDs.

Change-Id: Ibd27cc0d446c7cda34db76787e1e9c233c399f44
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/378015
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-19 17:14:52 -04:00
Daniel Verkamp
f4a4ddd8a1 nvmf: add subsystem ctrlr management functions
This moves the subsystem->ctrlrs list management fully into the
subsystem code, which will help simplify thread safety considerations
once we start adding locks.

Change-Id: Ibc118923f1bd520f1e524cde5d45ccfcc69aee1e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376025
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-19 17:14:52 -04:00
Ben Walker
21ea290192 nvmf: cntlid is now only unique within a subsystem
Previously we made cntlid globally unique as part of
a strategy for scaling connections that never panned
out. Now, we have a new strategy and don't need cntlid
to be globally unique, so relax the restrictions
and simplify the code.

Change-Id: I167772f5e7d37183715bf9967b0102529144bb2b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376250
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-09-19 17:14:52 -04:00
Daniel Verkamp
b0a80710ec nvmf: don't generate cntlids in reserved range
The NVMe-oF 1.0 spec says:

"The NVM subsystem shall not allocate a Controller ID in the range FFF0h
to FFFFh as a valid Controller ID"

Change-Id: If0b7dc4948e40b3bdf370a1da97199a25d362e71
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376247
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
2017-09-19 17:14:52 -04:00
Daniel Verkamp
65cac5fbe0 nvmf: store transport in listener structure
Avoid having to look up transports during discovery later.

Change-Id: I0207a822f05b02de4798d3e966603c073ea14062
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/377991
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-09-19 17:14:52 -04:00
Daniel Verkamp
0caab4e1da nvmf: add Write Zeroes support
Change-Id: I743f5e4d1c24ad5ef9f1fef4c2678e347b179a9f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/377260
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-14 17:41:52 -04:00
Daniel Verkamp
5eb129647d nvmf/bdev: refactor read/write into separate funcs
This makes it easier to unit test the individual functions and also
easier to follow the logic.

These helpers will also be used in the upcoming Write Zeroes function.

Also cleans up the variable names to be consistent with the rest of the
code.

Change-Id: I69847b6a052fb7baff058ed8e5b79904ddf2ec6d
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/377259
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-14 17:41:52 -04:00
Ben Walker
496ba0d273 nvmf: Temporarily remove hot plug support
The current hot plug support assumes only one thread
can access a subsystem at a time, but now that we're
changing that this will need to be reworked. In the
interest of making it easier to change the threading
model, remove hot plug support temporarily. We'll add
it back in once the threading model changes are done.

Change-Id: I15b75b402b85aa62f5ba864a64cde1de3cdb4ba3
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376417
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-13 12:54:49 -04:00
GangCao
03305949f9 nvmf: only pass the msg to initialized thread
Change-Id: I73cf34e0184f67a855afe980f5645df25baf4714
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/377652
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-09-08 17:13:36 -04:00
Daniel Verkamp
a7b62cc4cb nbd, nvmf: fix clang 4.0 packed member warnings
clang 4.0 introduced a new warning, -Waddress-of-packed-member, which
triggers on a couple of spots in NBD and NVMf. Fix them up to silence
the warnings.

Change-Id: I134618f93528ea9a3d08050c34056670a58abdab
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/377441
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-07 12:15:45 -04:00
Daniel Verkamp
1578b5b59b nvmf: convert to bdev _blocks APIs
Change-Id: I46dea98bf762967d49867e428f8ce6b3ec881072
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376257
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-06 17:19:26 -04:00
Daniel Verkamp
1e714cfe22 nvmf: factor out invalid connect response helpers
These were duplicated in ctrlr.c and request.c; pull them into
nvmf_internal.h so there's only one copy.

Change-Id: I00d499dd17689e907c182d01e61bde075d217af8
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376020
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
2017-09-06 13:03:20 -04:00
Daniel Verkamp
a2db49a121 nvmf: add AllowAnyHost option to subsystems
The previous behavior with an empty host NQN whitelist was to allow any
host to connect.

Change-Id: I5401e52d96642cf20afe0d50c692613e67262edf
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376432
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-09-05 13:03:09 -04:00
Ben Walker
7c6ca97834 nvmf: Move all struct definitions to nvmf_internal.h
This is not a public API, so simplify the number
of internal header files where important types
are defined.

Change-Id: I115d0497d37e3cfe399c3a5b2546d20aa4fe24b4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376249
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-01 12:43:26 -04:00
Ben Walker
c1535ca0af nvmf: Poll groups can now span transports
We are still creating one poll group per controller,
so this isn't particularly useful just yet.

Change-Id: I65c54385bdba587d4b1098629727877970d39277
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376241
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-09-01 12:43:26 -04:00
Ben Walker
7b3c6fbd40 nvmf: Remove connect/disconnect_cb from subsystems
The requests are now sent using spdk_thread_send_msg
internally, so the user no longer needs to supply
these callbacks.

Change-Id: I84b0f5f0f1f6fa6eaf9a717934925d3ad802fcfd
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376240
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: John Kariuki <John.K.Kariuki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-30 15:07:22 -04:00
Ben Walker
d5ce9cff63 nvmf: Transport polling now done by poll group
Instead of polling each individual qpair, polling is now
done by poll group. This allows transports to use more
efficient polling schemes in the future.

The RDMA transport as of this patch still just loops
over each qpair in the group and polls it individually,
so this patch results in no performance change yet.

Change-Id: I0f63f0dbbc5fd43c1e0d9729b10b37c2cb0d9881
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376239
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-30 15:07:22 -04:00
Ben Walker
3ee93c3293 nvmf/rdma: Poll groups can now span devices
Currently they're entirely contained within a single
spdk_nvmf_ctrlr, which won't span devices, but this
sets the stage for a more flexible library.

Change-Id: I653f3d6fe4187f4eaf18cda0a6960040ba6952d7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/376238
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-30 15:07:22 -04:00
Ben Walker
0ab300f872 nvmf: Send all fabrics and admin commands to master core
This prepares us to fan out I/O qpairs to other cores

Change-Id: I3e9a60226cddf3ccd26b7ad121775ee36f07e6a9
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375480
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-30 15:07:22 -04:00
Ben Walker
3c3c9da4ea nvmf: Remove g_nvmf_tgt
It isn't referenced directly anywhere but the unit tests, so
now we can remove it entirely.

Change-Id: I92bbf0e15ecffe2fbbdf5eecc29b6ef0e2fd5baf
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375462
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-30 15:07:22 -04:00
Ben Walker
6428de9e34 nvmf: Remove spdk_nvmf_listen_addr
Everywhere this is used, we can just use
spdk_nvme_transport_id instead.

Change-Id: I407c812cd6a1ca3afcb3d1fe87c7e22183b09d7a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375461
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-29 14:59:33 -04:00
Ben Walker
ff4f68a55f nvmf: Rename spdk_nvmf_ctrlr_gent_cntlid to spdk_nvmf_tgt_gen_cntlid
Also, move it to the appropriate compilation unit. Further,
remove use of g_nvmf_tgt.

Shift the function to a new compilation unit as well.

Change-Id: I1a43ff366532b450f00aed54a290fb9eed9bf453
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375455
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-29 14:59:33 -04:00
Ben Walker
81c3400a1e nvmf: Remove use of g_nvmf_tgt in spdk_nvmf_ctrlr_identify_ctrlr
The target is accessible through the subsystem.

Change-Id: I69616df48185dbfcbe7c90ca6948457a412c6666
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375454
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-08-29 14:59:33 -04:00
Daniel Verkamp
d92f0f75ca log: rename SPDK_TRACELOG to SPDK_DEBUGLOG
This matches the name to the behavior and prepares for addition of a new
log macro for "info" log level.

Change-Id: I94ccd49face4309d3368e399528776ab140748c4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375833
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-29 13:25:58 -04:00
Daniel Verkamp
afb3f73869 nvmf: always zero admin ctrlr-to-host data buffers
For admin commands with controller to host transfers, make sure no
uninitialized data is returned to the host.  This allows us to remove a
few other memset()s in per-command handlers.

Change-Id: I00ef42945a118b6e7a0b68ab21c59fdcd21d0ee2
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/376024
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-29 13:14:51 -04:00
Daniel Verkamp
02f088bb95 nvmf: dynamically allocate ns array
This allows the user to configure an arbitrarily large number of
namespaces instead of the current hard-coded limit of 16.

Change-Id: I3a29b0de10eafd682b12c54e12411d1f9d41ce85
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375636
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-29 12:35:35 -04:00
Daniel Verkamp
cd0e57e5ca nvme_spec: add #defines for string lengths
This is useful for places that want to use the size of an NVMe
spec-defined field without having an instance of the corresponding
structure.

Specifically, we can use SPDK_NVME_CTRLR_SN_LEN to replace MAX_SN_LEN
in nvmf.h.

Change-Id: Ida3d59470cce58c0fe984601aa9e2e05cdfaa741
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375467
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-24 12:13:07 -04:00
Daniel Verkamp
12ab1e26df nvmf: report SPDK version as firmware version
Use the version #defines from spdk/version.h to build a firmware version
string for the virtual NVMe-oF controller model.

Change-Id: I18285cfa75c8915a7db46d4d79c0447392bd5d8c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/375252
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-23 13:55:42 -04:00
Ben Walker
3d8e67d71f nvmf: Rename spdk_nvmf_tgt_poll to spdk_nvmf_tgt_accept
This function accepts new connections, so use the more
traditional name.

Change-Id: Ie4aaa4b1d6da81f81fa3cd1505e5ac45e157f052
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375205
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-23 11:06:47 -04:00
Ben Walker
f1015fbda6 nvmf: ctrlr_discovery.c no longer uses g_nvmf_tgt
Change-Id: I19d1866fb90ffd3e3543ccc66a098571ade3e3de
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375203
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-23 11:06:47 -04:00
Ben Walker
656e443dd1 nvmf: spdk_nvmf_tgt_listen now takes a target parameter
Also, move the implementation into the appropriate
compilation unit.

Change-Id: Ie1c56bc5e077b81d744414716f9267ceaf591e49
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/375034
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-23 11:06:47 -04:00
Ben Walker
70bc390c82 nvmf: spdk_nvmf_find_subsystem now takes a tgt parameter
The user can now specify which target they want to
search for the subsystem. Also, change the name to
spdk_nvmf_tgt_find_subsystem and put it in the correct
compilation unit.

Change-Id: I7c085959814c14d8400a0ba2572103b0814a4d0e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374879
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-23 11:06:47 -04:00
Ben Walker
4addb5c899 nvmf: spdk_nvmf_tgt_create_subsystem takes a tgt parameter
The user can now specify which target to create the subsystem
on.

Change-Id: I6206c0d762d59ff6312cb58d36180281baaa7266
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374878
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-08-23 11:06:47 -04:00
Ben Walker
34d6e17598 nvmf: spdk_nvmf_tgt_init is now spdk_nvmf_tgt_create
This new function returns a reference to the target
object. This sets the library up to support multiple
targets in the future.

Change-Id: Id803dbcbb166eca33d8d5c381d9db97628606f3e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374877
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-22 11:29:03 -04:00
Ben Walker
02b640bfdf nvmf: Add a pointer to the target to the subsystem
This eliminates a couple of references to g_nvmf_tgt
and sets the stage for eliminating that global entirely
in the future.

Change-Id: I068d0874cc8ba122be780e8dbd55bb1efabe10b7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374876
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-22 11:29:03 -04:00
Ben Walker
d868cd0895 nvmf: Change spdk_nvmf_tgt_init to take an options struct
The list of options is going to continue to grow, so avoid
constant API churn by adding an options struct.

Change-Id: Ie9e7248281726d4aee42b3519fcf7535ba01ee34
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374872
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-22 11:29:03 -04:00
Ben Walker
977d78778b nvmf: Hide definition of spdk_nvmf_subsystem
Now the user only sees an opaque structure.

Change-Id: Ie73b4bb0157228bbcab1b3c211d7383f881fd07e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374708
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-21 15:11:59 -04:00
Ben Walker
683d4a4cad nvmf: Encapsulate spdk_nvmf_listener
Hide the implementation of spdk_nvmf_listener.

Change-Id: I62d46c76be0962b4246d1b7774ce8249b5baa039
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374871
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-21 15:11:59 -04:00
Ben Walker
45f04c8907 nvmf: Encapsulate spdk_nvmf_host
Hide the definition of spdk_nvmf_host. Add accessors
for the necessary data.

Change-Id: I28f5b8d243cb1b299724a1dd32fcf2f2bd95e1f9
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374870
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-21 15:11:59 -04:00
Daniel Verkamp
14451d76fe nvmf: encapsulate namespace data into a struct
Add a new struct spdk_nvmf_ns to hold namespace information, and add
accessor functions so that it can be moved out of the public API in
future patches.

Change-Id: Id926aaa3cc279649057afc65e08024628edbc435
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/374740
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-18 17:50:58 -04:00
Daniel Verkamp
81062f6049 nvmf: disallow I/O connect on Discovery controller
Discovery controllers only have an admin queue.

Change-Id: I5d5a018a7df40164838a4b03f7f106a96db7e33b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/374736
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-18 17:50:58 -04:00
Daniel Verkamp
5b4b66bab9 nvmf: move admin processing to ctrlr.c
Now that the discovery controller is using the common admin command
functions, move all of them into the common ctrlr.c file.

This also eliminates the subsystem ops, which are now just direct calls.

Change-Id: I0a25a61e0ad8742d3d76a3cacd46db4701fc7d63
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/374733
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-18 17:50:58 -04:00
Ben Walker
3c423f4099 nvmf: Turn RDMA req processing into a state machine
Formalize a state machine around request processing.
The state is advanced by calling
spdk_nvmf_rdma_request_process().

This clarifies the implementation considerably and
cleans up a few corner cases. Unfortunately, the diff
is also enormous and there does not appear to be a
way to reduce it.

Change-Id: I5741da24bcffc1aef367ebfe3dd1f589c5746901
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374540
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-08-18 14:38:32 -04:00
Ben Walker
1ff5f4ab13 nvmf/rdma: Add a utility to parse the SGL
This function also looks suspiciously generic and can
probably be moved to general nvmf code in the future.

Change-Id: I7849d2d7952b245a065393ce4be5d5e05c8bd8c2
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/374539
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-08-18 13:14:34 -04:00