Export the spdk_set_thread(), so that apps may use it to associate
a thread with SPDK thread when necessary.
Change-Id: I488bea639729d68d7261a497085bbec274357224
Signed-off-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/461509
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Lightweight threads may now be exited by calling
spdk_thread_exit() within the thread. The framework
polling the thread can release the resources associated
with that lightweight thread by calling
spdk_thread_destroy().
Change-Id: I6586b9d22556b3874fb113ce5402c6b1f371786e
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/455319
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Allow users to optionally specify an affinity mask when
creating a thread. This isn't currently used, but we want
the API to be in its final form for the next release.
Change-Id: I7bd05e921ece6d8d5f61775bd14286f6a58f267f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/451683
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This function add possibility to check if there are any scheduled operations
on particular thread.
Return from spdk_thread_poll() will be used as a way to load-balance and
signify if any work was performed during the single iteration.
A poller could return 0, but still be registered.
This helps especially in fio_plugin that only checked active_pollers or
messages via spdk_thread_poll().
Change-Id: Id6237278eb3b4bd4922b2abaa3c8ebd5e434d45d
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/445915
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
This function add possibility to check if there are registered pollers
on particular thread.
Change-Id: I80af06a10c5c1b54fed5bb28a3aa769a52d8a206
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/446624
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
This is the inverse of spdk_thread_get_ctx.
Change-Id: I81541ff1687cfea358cb7046caf69982c38f6a38
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/444455
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Schedulers can use this region to store required information.
Change-Id: I93efb44f1a534596f6285bbe014579311fe011e7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/444454
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
spdk_thread_poll()
This is an optimization if the calling function already knows the
current time.
Change-Id: I1645e08e7475ba6345a44e0f9d4b297a79f6c3c2
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/443634
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This name more closely resembles pthread_exit, which is a
closer analogy to how the new threading library works.
Change-Id: I68b04509f3ff8e94b8688804a7e5661155a3ecd1
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440597
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
This mirrors pthread_create, which works more closely
to the new style where SPDK libraries can spawn their
own threads.
Change-Id: Ic524c4c35bcf7c1611e4f261ebb64b98ac5a5a1b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440596
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Instead of implicitly grabbing the thread from the thread
local variable, make it explicit.
Change-Id: I733fad06181439e12b1e71a4829b84e7b64e2468
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440595
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Nothing implements the callback just yet, but it will be used for
dynamic thread creation.
Change-Id: I088f2bc40e1405cd5b9973b9110608f49c8abd68
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440594
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
These are no longer used by anything.
Change-Id: I0db6bc88e4dc945ff4f64df2ac410e1d00a669c1
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/437601
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Check next poller's expiration time to calculate the timeout for
pthread_cond_timedwait.
Change-Id: I96f81bab917c1bc628d94bba3c58d25066d4209a
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/437309
Chandler-Test-Pool: 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: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This is the callback type used for message passing. The
old name is easy to confuse with the callback to pass
a message to a thread or the upcoming callback to
spawn a thread.
Change-Id: I5fd63b57c4be2a4262a197850e6de4901be03ee7
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/435941
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Move the message ring and the polling into the thread
itself.
Change-Id: I5bc53c68bb1314fd69ed80cc98c5b86ce8be880f
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/423768
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
The user of the thread library is now only responsible for
periodically calling spdk_thread_poll. Pollers are handled
internally.
In order to avoid changing all of the unit tests, the ability
to provide function pointers to change the behavior of
the poller registration is still in the code. This should
only be used from tests until they are all converted.
Change-Id: Ie2c00ce1d57ca3710ed2c469cd711924768e23ef
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/417784
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ziye Yang <optimistyzy@gmail.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
The scenario is as follows:
spdk_get_io_channel(...)
spdk_put_io_channel(...) <- sends a message to do the release
spdk_get_io_channel(...)
spdk_put_io_channel(...) <- sends a message to do the release again
_spdk_put_io_channel(...)
_spdk_put_io_channel(...) <- boom
Change-Id: I86a66c68a525964e0d2dcd9cac2c292dc8b43136
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/424141
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: 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>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This is a string name used for debugging only.
Change-Id: I9827f0e6c83be7bc13951c7b5f0951ce6c2a1ece
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/424127
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
These don't do anything yet.
Change-Id: I718c6fb19c059a39bc5cb360c3da47ec05bfa416
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/423767
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This will return the number of currently allocated threads.
Modify the bdev_io caching code to use this new API since these
caches are really per-thread, not per-core. SPDK does not support
dynamic threading yet, but once it does, we will want callers to be
using functions from the thread API - not counting the number of cores
allocated to the application.
spdk_env_get_core_count may still be useful as a helper function, so
it is still kept and not deprecated. For example, app.c uses it to
print the number of cores allocated to the application. bdevperf should
eventually be modified to use spdk_thread_get_count, but holding off on
that for now until spdk_event_allocate() uses threads instead of a reactor
lcore to specify where the event should be executed.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I5a30e3e825e6821da87d3927a2443768dfd740f4
Reviewed-on: https://review.gerrithub.io/414709
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Madhu Pai <mpai@netapp.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Leave io_channel.h in the repository and make it simply
include thread.h for backward compatibility.
Change-Id: I5320fb8e9e5bc6e39ee9ce44cd79570194a8b841
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/414699
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Madhu Pai <mpai@netapp.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
