Commit Graph

89 Commits

Author SHA1 Message Date
Jim Harris
a8d3ac0cf4 io_channel: invoke unregister_cb on same thread unregister was called
The unregister callback is only invoked after all I/O channels related
to the I/O device have been freed.  The last I/O channel to be freed
might be on a thread different than the thread where spdk_io_device_unregister
was called.  If this is the case, send an event to the latter thread
so that the callback gets called on the same thread as spdk_io_device_unregister.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I3c910198fbd83eae95e5c57d618284e64db46ff7

Reviewed-on: https://review.gerrithub.io/404414
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2018-03-19 21:50:19 -04:00
Daniel Verkamp
d4ef1338b0 bdev: make QoS channel management thread safe
We must hold bdev->mutex around all QoS channel manipulations, not just
channel_count; otherwise, there are race conditions.

Change-Id: I6183aef83f4d5789bded426a1832e3faaa688363
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/403367
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: GangCao <gang.cao@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-03-13 14:06:23 -04:00
Roman Sudarikov
c3bc40a6ef io_channel: add return value to pollers
This will be used to track time used in pollers - each poller can now
indicate if it found any work to do or not.

For cases where it was obvious and the infrastructure was already in
place, existing pollers have been modified to return 0 or a positive
value to indicate whether work was done.  Other pollers have been
modified to return -1 by default, indicating that the poller isn't
indicating anything about whether work was performed.  This will allow
us to find un-annotated pollers easily in the future and fix them
incrementally.

Change-Id: Ifebfa56604a38434fac5c76ba7263267574ff199
Signed-off-by: Roman Sudarikov <roman.sudarikov@intel.com>
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/391042
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-03-13 11:16:20 -04:00
Daniel Verkamp
19100ed580 bdev: rename spdk_bdev_module_if -> spdk_bdev_module
This better matches the style in the rest of SPDK.

No functional change - this is a pure find/replace of
spdk_bdev_module_if to spdk_bdev_module.  Instances of this struct will
be renamed in another patch.

Change-Id: I3f6933c8a366e625fc3a1b6401aee26ee03ba69c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/403368
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-03-13 00:55:12 -04:00
GangCao
a2142f3a33 bdev/qos: add the QoS rate limiting support on bdev
This patch is to add the basic support of QoS on bdev.

Including two major functionalities:

1. The QoS rate limiting algorithm:
	a. New IO will be always queued first also under
	   the no memory condition
	b. Start the QoS IO operation based on the limit
	c. A poller started in each millisecond to reset
	   the rate limit and send new IOs down
	d. The rate limit is based on the millisecond and
	   converted from user configurable IOsPerSecond

2. The Master Thread management:
	a. Add a per bdev channel_count
	b. Whenever QoS is enabled on bdev, if QoS bdev
	   channel is not created, create the QoS bdev
	   channel and assign the QoS thread
	c. When new IOs coming from different channels
	   (threads), pass the IOs to the QoS bdev channel
	   through the thread event
	d. When the IOs are completed from the QoS bdev
	   channel, pass the IOs back to its orignal
	   channel(thread)
	e. Destroy the QoS bdev channel when it is the
	   last bdev channel for this bdev. Defer the
	   destruction if current thread is not QoS thread

Change-Id: Ie4444551d7c3c7de52f6513c9db926628796adb4
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/393136
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>
2018-03-09 13:48:21 -05:00
Pawel Wodkowski
4d36735401 bdev: rework bdev module registration
Currently SPDK_BDEV_MODULE_REGISTER() take many parameters. Extending it
(eg for incoming JSON configuration dump/load) is quite challenging and
error prone. As we are already here in next patches, rework this macro
to take one parameter - the pointer to struct spdk_bdev_module_if.

This patch also remove following macros:
SPDK_GET_BDEV_MODULE - this is not really needed, to find module outside
module translation unit use spdk_bdev_module_list_find()

SPDK_BDEV_MODULE_ASYNC_INIT and SPDK_BDEV_MODULE_ASYNC_FINI - replaced
by bool fields in spdk_bdev_module_if struct.

Change-Id: Ief88e023fbbaee7d5402c838dbecbdffd4dfb259
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/402883
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>
2018-03-09 12:07:35 -05:00
Daniel Verkamp
b4e68642e8 test/lvol: fix reference to libuuid function
This was introduced after the spdk/uuid.h wrapper was added due to a
non-rebased patch being merged.

Change-Id: I674db91581e6eb2e9ab6113e19d777404a78cf37
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/403205
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-03-08 12:06:42 -05:00
Sebastian Basierski
f5e590c8f2 bdev: Added functions allowing logical volume store rename.
Change-Id: Ief1f809308fbde2e696c60d3ce79c0720cb3e2ff
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Reviewed-on: https://review.gerrithub.io/398934
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>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2018-03-08 11:26:16 -05:00
Daniel Verkamp
4c06ce9b9d util: add uuid.h to wrap libuuid
This lets us have a common place to put definitions like the length of
the UUID string, as well as abstract away some of the API warts in
libuuid (non-const values, no size checking for uuid_unparse, etc.).

Change-Id: I80607fcd21ce57fdbb8729442fbb721bc71ccb98
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/402176
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2018-03-08 10:49:51 -05:00
Daniel Verkamp
2532fd8f68 lvol: switch to uuid_generate()
Rather than explicitly asking for time-based UUIDs, let libuuid choose
the best available UUID source (high-quality random number based if
available, or time-based if not).

Change-Id: Ic2f538890f86d3158b64f5884708439b72c373f6
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/402963
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
2018-03-08 10:49:51 -05:00
Changpeng Liu
736f6937f6 test/part_ut: remove VTUNE dependency for this unit test
Change-Id: If19c263d184c1eaab12950ba0baa05e7f3aea6e0
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/401729
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>
2018-03-02 13:31:03 -05:00
Daniel Verkamp
3559bec4f9 bdev: move part helper code into its own file
Change-Id: I05505c469cac96a5e4812f2f65a7342ceec0a28c
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/401511
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-02-27 12:36:26 -05:00
Jim Harris
66fc591ff7 blob: change spdk_bs_io_xxx_blob functions to spdk_blob_io_xxx
These new names are much more clear and are aligned with other
functions such as spdk_blob_close.

Keep the old names around for now but deprecate them.  We will
remove them in next release.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Idc60fd0b19fa2a8b0247a1f5835774d342e721f9

Reviewed-on: https://review.gerrithub.io/400884
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-02-23 18:37:17 -05:00
Sebastian Basierski
526cd58003 bdev: Added functions allowing logical volume rename.
Change-Id: Ice343afdc84c2a11cd9026d128a35f7a62aa7125
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Reviewed-on: https://review.gerrithub.io/398933
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-02-16 16:21:20 -05:00
GangCao
0f2ef7cf22 ut_multithread: add the support of periodic poller
This patch is to add the support of periodically
running poller. A setting is added for the increased
time so that the poller on that thread can be running
or not depending on the required setting.

UT code also added for this new functionality.

Change-Id: I0d012ddb18c9b0f6ae8aa877a30d214d6ba34946
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/398359
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-02-15 11:20:15 -05:00
Jim Harris
d8c3ff5fd6 test: use spdk.unittest.mk in bdev unit tests
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I4b0704021bc8e9ccbc6ed6ce7ac8eb1efad4a561

Reviewed-on: https://review.gerrithub.io/399728
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-02-14 11:07:05 -05:00
GangCao
9aed854be0 bdev: add a common channel resource destroy function
In the different cases to creat a bdev channel, added
a common cleanup function to destroy the resource.
The same function is also called at the bdev channel
destruction.

Change-Id: I81b60cab9df3a8975b0a9982482c9d27899d8a79
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/398351
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-02-06 11:06:28 -05:00
Tomasz Zawadzki
e87d3400a5 lvol: display thin_provision property during get_bdevs
Change-Id: Ib3507a9e69b210cbd173c88d166025d4579e0149
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/397602
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>
2018-01-31 15:39:25 -05:00
Maciej Szwed
9ed6bedd3e lvol: enable creation of thin provisioned lvols
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ie6a651d0238d09729e28d5456a84ba090faeb465
Reviewed-on: https://review.gerrithub.io/391568
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-01-30 17:29:53 -05:00
Slawomir Mrozowicz
d4822a7db5 bdev: Add bdev resize function
Add api and unit test functions for
change number of blocks for provided block device.

Change-Id: I55d67c99375cb88bdaa79ce1a36d4298223beddc
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Reviewed-on: https://review.gerrithub.io/390802
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>
2018-01-26 14:45:08 -05:00
Tomasz Zawadzki
b6aaba0852 bdev: remove vbdevs during spdk_bdev_unregister()
spdk_vbdev_unregister() is part of internal bdev API,
yet bdev module that uses spdk_vbdev_register() directly
will not be removed correctly when using delete_bdev RPC.
spdk_vbdev_unregister() is now consolidated with
spdk_bdev_unregister().

This comes up when deleting lvol bdev, as it does not use
spdk_bdev_part_* functions.
base_bdev->vbdevs entry was not removed for bdev that lvs
is created on.

Additionally patch expands test to create lvol bdev,
after removing it using delete_bdev RPC.
With ASAN enabled this would report accessing
already freed memory previously.

Change-Id: I9547e83862e2daa50355d56a1c9f453aaa6cfdb8
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/395711
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>
2018-01-24 15:50:04 -05:00
Dariusz Stojaczyk
583a24a489 bdev: share nomem_io data between bdevs built on the same device
When there are two bdevs built on the same io_device,
it is possible that one bdev entirely saturates
underlying queue, not letting the second bdev issue
a single I/O. The second bdev will silently fail any
subsequent I/O and append it to the nomem_io list.
However, since we resend I/O only from I/O completion
callback and there's no outstanding I/O for that bdev
(io_outstanding==0), the I/O will never be resent.
It'll be stuck in nomem_io forever.

This patch makes nomem_io list to be shared between
bdevs built on the same device. It is now possible
that I/O completion callback from one bdev will retry
sending I/O from other bdev.

The shared bdev data is based on thread-local
bdev_mgmt_channel, so doesn't need any external
synchronization.

Change-Id: Ia5ac3a1627ce3de4087e43907c329aa7d07ed7c7
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/394658
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>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
2018-01-18 00:29:46 -05:00
Dariusz Stojaczyk
5e799ff470 ut/bdev/mt: prepare for multi-bdev tests
See subsequent patches for details

Change-Id: I17dd842cb6df0b1a6ee3e2745a265cbef321336e
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/395165
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-01-18 00:29:46 -05:00
Sebastian Basierski
a70a000997 bdev: Renamed lvol->old_name to lvol->unique_id
Also added vbdev_get_lvol_by_unique_id function.

Change-Id: I55a64df008c23c0fedb8a59ef67e2c356097e780
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Reviewed-on: https://review.gerrithub.io/392658
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
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>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-01-04 13:15:09 -05:00
Sebastian Basierski
b9afa3c732 bdev: Added bdev aliases list.
Added aliases list to bdev struct.
Added 2 API calls to add and remove aliases.
Added test for adding and removing aliases.

Change-Id: I1815aec8c02cfa398b2d1de41577197315665fdc
Signed-off-by: Sebastian Basierski <sebastianx.basierski@intel.com>
Reviewed-on: https://review.gerrithub.io/390200
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>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
2018-01-04 13:15:09 -05:00
Jim Harris
e734bb9f9f blob: change spdk_blob_close parameter to spdk_blob *
Using the ** paradigm is a bit problematic for asynchronous
routines that could fail.  Currently we were inconsistent in
that some error paths would zero the pointer while others
did not.  So make this just a plain pointer, which simplifies
the API and its implementation.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I67147931c6e8350896a4505022a6a314655de3d3

Reviewed-on: https://review.gerrithub.io/391482
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-15 12:28:44 -05:00
Jim Harris
7932847300 blob: remove spdk_bs_io_flush_channel
This function was a nop and is not needed.

lvol was calling this function when an lvol bdev
gets a FLUSH I/O, but that is not needed either.  So
lvol will now report it does not support flush.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I92df83243f7ebce81c69040a8874891dc2ffc961

Reviewed-on: https://review.gerrithub.io/391023
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-12-13 13:06:16 -05:00
Jim Harris
2c3591f183 blob: rename spdk blob metadata functions
spdk_bs_md_resize_blob => spdk_blob_resize
spdk_bs_md_sync_blob => spdk_blob_sync_md
spdk_bs_md_get_xattr_value => spdk_blob_get_xattr_value
spdK_bs_md_get_xattr_names => spdk_blob_get_xattr_names
spdk_blob_md_set_xattr => spdk_blob_set_xattr
spdk_blob_md_remove_xattr => spdk_blob_remove_xattr
spdk_bs_md_close_blob => spdk_blob_close

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I99b593c03bc61354ba6aa5a446b0fc82df1e9ce2

Reviewed-on: https://review.gerrithub.io/391006
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-12 18:36:18 -05:00
Ben Walker
3ef479ab16 bdev: Correctly defer completion of resets until channels are unlocked
Change-Id: I23f71ff38b805723d74aca639489e0079ecdb993
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/390341
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-12-11 14:58:17 -05:00
Daniel Verkamp
59970a89be astyle: enforce braces around single-line statements
Require braces around all conditional statements, e.g.:

    if (cond)
        statement();

becomes:

    if (cond) {
        statement();
    }

This is the style used through most of the SPDK code, but several
exceptions crept in over time.  Add the astyle option to make sure we
are consistent.

Change-Id: I5a71980147fe8dfb471ff42e8bc06db2124a1a7f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/390914
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-12-11 11:19:32 -05:00
Ben Walker
2b768821bf blob: spdk_bs_destroy now only zeroes the super block
The function just needs to zero out metadata so that the
blobstore is effectively destroyed. If the user wants
to unmap the rest of the disk after the blobstore is
destroyed, they are free to do so. On future initializations
of blobstores the code will do the unmapping, so performance
is not impacted.

While here, implement the zeroing using the new
write_zeroes functionality instead of allocating a buffer
full of zeroes.

Change-Id: I7f18be0fd5e13a48b171ab3f4d5f5e12876023bc
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/390307
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-12-06 17:21:46 -05:00
Daniel Verkamp
56f61c8feb bdev/pmem: require name in construct_pmem_bdev RPC
Change-Id: I3cbb52cd9a4201704423b49eae74935b8a33b0fd
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/389903
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-12-04 18:51:14 -05:00
Cunyin Chang
89dedde148 bdev/pmem: unregister pmem bdev when app exit.
Change-Id: I6ad0d74df8a445700fdb55531e496d8fb8df8132
Signed-off-by: Cunyin Chang <cunyin.chang@intel.com>
Reviewed-on: https://review.gerrithub.io/389923
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>
2017-12-01 16:44:57 -05:00
Daniel Verkamp
f5acc37221 lvol: pass lvol store to vbdev_lvol_create()
All of the call sites already have a lvs pointer; there's no need to
look up the lvs by UUID again.

Change-Id: Icef54d84e7c89f682ea47f10b282839ab4237ce0
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/389892
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>
2017-12-01 16:36:12 -05:00
Ziye Yang
6802fe99f4 bdev: handling duplicated bdev name
Change the return type of spdk_bdev_register related
functions and try to handle the duplicated name
issue.

Change-Id: I23af11583cf2050579d1624508306a35394bffde
Signed-off-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-on: https://review.gerrithub.io/388178
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>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-11-28 16:20:30 -05:00
Ben Walker
44770c2a11 bdev: Remove poller abstraction
Use the new one from io_channel.h.

Change-Id: I7bf6729caf6eeebcb58450a36119601957ad5da4
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/388290
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-11-28 15:29:35 -05:00
Maciej Szwed
cf6fe9b15d lvol: add unmap and write zeros support
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ic11a56c5616098ff42f31f78aa96289af5965118

Reviewed-on: https://review.gerrithub.io/387611
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-11-21 13:28:22 -05:00
Piotr Pelplinski
511adde02f lvol: add lvs name in rpc calls
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: Ic6770371d9d62cbdd40ae0612eb4f7dceccd507f
Reviewed-on: https://review.gerrithub.io/383771
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@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>
2017-10-27 13:10:21 -04:00
Piotr Pelplinski
e5b0dd6ead pmem: bdev names for pmem bdevs
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: Ifbb02f99cd2e5752b2bc9091733b87ddadec11a4

Reviewed-on: https://review.gerrithub.io/383895
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-27 13:10:07 -04:00
Tomasz Zawadzki
6c54c13cd4 event/subsystem/bdev: asynchronous SPDK finish
First this change moves spdk_subsystem_fini() to trigger on
spdk_app_stop(). This ensures that spdk_subsystem_fini() is called
before reactors are stopped in spdk_reactors_stop().

Finish paths for subsystems, bdevs and copy engine is now
asynchronous.
Each of those three mentioned have to make sure they are
asynchronous as well.

Only bdev that currently has requirement for asynchronous finish
are logical volume.
Thus the change in vbdev_lvol.c making it move to next bdev module
only after all lvol stores were unloaded.

Fio_plugin finish of bdev and copy_engine was removed for now.
Next patch in series adds it back with async support.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I80ee2d084f3d82c50bf1329e08996604ae61b1b3
Reviewed-on: https://review.gerrithub.io/381536
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>
2017-10-27 13:03:55 -04:00
Tomasz Zawadzki
ebf0312eef lvol: Add vbdev_lvs_destruct() and change unload behaviour [3/3]
This patch adds new API to remove logical volume store
from device it is on. It is only used from RPC, when
user explicitly requests. It allows to use the device to
use as any other bdev.

vbdev_lvs_unload() is now only called from hotremove and
during application shutdown. Which makes it possible to
load it again during application start up.

Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: If6452ecc3fff99237d1704ff7cd8de4d7133221d
Reviewed-on: https://review.gerrithub.io/382021
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>
2017-10-26 17:23:58 -04:00
Maciej Szwed
2baeea7dd4 bdev: add callback to spdk bdev unregister and bdev destruct
Currently deleting bdev does not support asynchronous delete
operations. Because of that results are returned before device
is actually deleted and some operation can be peformed on that
device after removal of this device started.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I305c302d8abd5d7c2c0f947fca70c58396872132
Reviewed-on: https://review.gerrithub.io/383732
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>
2017-10-26 17:23:58 -04:00
Jim Harris
e6d053e78a lvol: add lvol unique name
Add a name to each lvol which is persisted as a blob
xattr.  lvol names must be unique within its
lvolstore.

While here, fix a few lvol_ut issues that were caught
as part of testing the lvol unique names.  Also fix
a couple of tests that registered the wrong string
name with CUnit.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I6d24d241e8f52158d14886f928d41823bbc93fa9

Reviewed-on: https://review.gerrithub.io/383567
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-25 12:10:38 -04:00
Jim Harris
c6f1d12930 lvol: move name to old_name
There are some upcoming changes which will deprecate
the old lvsuuid_blobid name in favor of an
lvs_name/lvol_name name where these names are
user-specified.

In preparation for this change, rename the previous
lvol->name to lvol->old_name.  This will allow us
to add a new lvol->name but keep the original
old_name during the transition.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I10deb219097fa8726c146ab2427ee7373933b97d

Reviewed-on: https://review.gerrithub.io/383534
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-25 12:10:38 -04:00
Maciej Szwed
199e73908d lvol: Lvol store tasting
This patch introduces lvol store and lvols parameters saving
on persistent memories and loading it from saved data on app start.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: Ia63f0cf3d6365d59f31c5f0a1724636bfe73b5b8
Reviewed-on: https://review.gerrithub.io/375764
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>
2017-10-24 13:36:51 -04:00
Piotr Pelplinski
dc7eb0397e ut_lvol: unit tests for i/o
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>
Change-Id: Ic664740490f2a342d0d63947935fb081cb70934b
Reviewed-on: https://review.gerrithub.io/373748
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-23 15:53:25 -04:00
Maciej Szwed
63fce5595b lvol: add reference counter for open lvols
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I3a86f28056e67b3c237441fb1048ca6ccd081ae7

Reviewed-on: https://review.gerrithub.io/383252
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>
2017-10-20 16:06:53 -04:00
Maciej Szwed
94cf9837aa lvol: support callbacks in lvol close/destroy functions
Close and destroy lvol functions should support callback
functions so that they can be processed sequentially
and also give user result.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I9e87fb281916c65c17b2b7e54e91228844962048

Reviewed-on: https://review.gerrithub.io/383230
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>
2017-10-20 14:26:01 -04:00
Jim Harris
f97c8b3142 lvol: add spdk_lvs_opts_init()
Some future patches will require specifying an lvol_store
name when calling spdk_lvs_init().  This means that passing
NULL for spdk_lvs_opts will no longer be an option.  So
add an spdk_lvs_opts_init() (similar to spdk_bs_opts_init)
which will initialize a default value for the cluster size.

While here, prepend an underscore to spdk_setup_lvs_opts, since
this function is not part of the public SPDK API.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I155bcfd0c396017304bb3d58b7511ada71dade17

Reviewed-on: https://review.gerrithub.io/383030
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-10-19 13:23:58 -04:00
Pawel Wodkowski
32f7f2af23 bdev_pmem: unit tests for persistent memory backend
Change-Id: I4837d489d4730423825929f0e53d3ef6b487f0d0
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Signed-off-by: Piotr Pelplinski <piotr.pelplinski@intel.com>

Reviewed-on: https://review.gerrithub.io/379470
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2017-10-18 13:48:22 -04:00