Commit Graph

17 Commits

Author SHA1 Message Date
Daniel Verkamp
249a68e92b bdev: add API to claim block devices
Claim the block devices used by iSCSI LUNs and NVMe-oF subsystems so
they can't accidentally be reused.

This will also be used by virtual block devices to allow layering of
bdevs.

Change-Id: I5384923fbf24f13f4ce720a797c5a628053d49f4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-01-11 16:49:39 -07:00
Daniel Verkamp
de1b00657c nvmf_tgt: implement log page offset for discovery
Generate the full discovery log page in a memory buffer, then copy just
the requested part of it for each Get Log Page call.

Change-Id: I12730c59c0395cdac57aaab96337e938952e3011
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-12-14 12:15:19 -07:00
Daniel Verkamp
6ca517d460 nvmf: split subsystem lookup from host check
This allows us to print better error messages when connecting to a
subsystem that exists but does not allow a specific host.

Additionally, we can now return the correct error code for a host that
is not allowed.

Change-Id: I16cd4ac2745cf50bb54601b464b0d23954f86fda
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-11-23 16:34:13 -07:00
Ben Walker
b43db69a44 nvmf: Remove spdk_nvmf_transport from public API
The details of the structure were removed earlier, but
now remove all references even to a pointer to the
structure. The user can refer to transports by their
string name.

Change-Id: I273356f46329ea5372dcd951eda6f14767477d69
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-11-16 08:11:46 -07:00
Ben Walker
f1017d7769 nvmf: Remove num from subsystem
It wasn't used for anything.

Change-Id: Ifc8c97481490f6389a739a37df03dea6c88ec692
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-11-16 08:11:46 -07:00
Ben Walker
1e6ffa0394 nvmf: Add a public API header
This changes as little code as possible while still creating
a single public API header. This enables future clean up
of the public API and clarification of the exposed
concepts.

Change-Id: I780e7a5a9afd27acf0276516bd71b896ad301c50
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-14 15:26:31 -07:00
Ziye Yang
b1e3279ae0 nvmf: change nvmf_session to spdk_nvmf_session
Make the structure definition consistent

Change-Id: If147066cee041a2a357bc7efcb1f882f914e5b42
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2016-09-27 09:57:17 -07:00
Daniel Verkamp
bc0867dcaf nvmf: move subsytem poller to nvmf_tgt app
The application is now entirely responsible for scheduling subsystem
pollers and sending events between threads.

Change-Id: I88da1f53b5e8852c7c4acd6f0a7a1e2219fbed41
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-09-12 10:10:27 -07:00
Ziye Yang
9f2fc78e3f NVMf: Handle the memory leak issue of nvmf tgt
Reason: In acceptor_poller_unregistered_event, we
directly call spdk_nvmf_check_pools and spdk_app_stop,
it will fail the memory check.

And function nvmf_delete_subsystem_poller_unreg will
not be called since we already call spdk_app_stop.

Change-Id: I3ffa30c87b149a66cee1d87d1bb81d4dc8cc96b9
Signed-off-by: Ziye Yang <ziye.yang@intel.com>
2016-09-09 07:58:29 -07:00
Daniel Verkamp
c04b2968a6 nvmf: enforce NQN validity at creation time
Move the NQN validation into the subsytem creation function, and fix the
allowed size to match the spec.

The spec is not clear about the allowed NQN size; for now, interpret it
as 223 bytes, including the null terminator (222 bytes of actual NQN
plus one terminator byte).

Change-Id: If9743ab2fe009d9d852e8b03317d9b38d8af18dc
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-24 13:34:47 -07:00
Liang Yan
d66600ebf8 nvmf/test: update subsystem unit test
Change-Id: Icf5a1def906baf783853337b9e030a76ac40292a
Signed-off-by: Liang Yan <liang.z.yan@intel.com>
2016-08-23 09:57:05 -07:00
Daniel Verkamp
759dbf46d8 nvmf: unregister subsystem poller on shutdown
Clean up the poller and only then free the associated subsystem's
memory.  This prepares for future dynamic subsystem creation/deletion.

Change-Id: I9e56cbf8822814930fdbb662095c51b6ad40fbc4
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-22 08:47:51 -07:00
Daniel Verkamp
5d8c94536a event: hide struct spdk_poller internals
This leaves more flexibility for future changes to the poller
representation without requiring API changes (after this one).

It also prevents the user from accidentally using poller fields in a
non-thread-safe way, since they can't be accessed directly anymore.

Change-Id: I7677d5b93668665d29ae39c5e0ba74333ad3f878
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-12 10:42:12 -07:00
Cunyin Chang
fc75d2a282 nvmf: Add nvmf controller operation structure.
Change-Id: I3f8c0cea7fbbf443b13ed336a786d0e14927131e
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
2016-08-09 15:50:40 -07:00
Daniel Verkamp
f279de1f71 nvmf: set ASQSZ in discovery log
Report the maximum admin queue size correctly.

Change-Id: I52cad654bf59806e0abb8d869c22973647056617
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-08 08:45:38 -07:00
Daniel Verkamp
c41ab41c17 event: add timer-based pollers
Allow pollers to be scheduled to be run periodically every N
microseconds instead of every iteration of the reactor loop.

Change-Id: Iaea3e98965d81044e6dc5ce5f406bcb7a455289e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-08-03 09:00:54 -07:00
Daniel Verkamp
1d81cbc955 test/nvmf: stub out per-file unit tests
Change-Id: I9606b82dbfaa6c84d8dafc07fb76a113e3436083
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-07-22 12:50:44 -07:00