It is possible that STDIN_FILENO is registered as one
interrupt source. So fd_group and spdk_thread should
accept fd whose value is "0".
Change-Id: I96c7e0d6dc1dfa10b42b59aadfa6dc159c133519
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5161
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: Mellanox Build Bot
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
When call spdk_thread_get_by_id function to use thread->id to get thread point, if the id value is invaild, just return NULL before search from g_threads tailq.
Signed-off-by: sunshihao <sunshihao@huawei.com>
Change-Id: Ic6c35d2c2b5093c9b513618742b8b9835599ba63
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5031
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
When call _free_thread in the exit process, print poller type information to identify which type poller is not free.
Even if the fuction spdk_poller_register_named called, we don't konw what type the poller is.
Signed-off-by: sunshihao <sunshihao@huawei.com>
Signed-off-by: suweifeng <suweifeng1@huawei.com>
Change-Id: I43f8d51b08a01169d418e6a6a46266887f9a85dd
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4999
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Each reactor and each thread is assigned with one fd group.
At the same time, each thread is treated as one interrupt source
registered into its corresponding reactor.
The egrp function for reacotr is the only block point waiting
for events.
Change-Id: Id092e66591b07b445342f8ae16dc218d28887427
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4269
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
There is nothing left here, so remove it.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: Ib947d42bc577dbebb4650b1be885e05a80f8f8cf
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4541
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Community-CI: Broadcom CI
This patch removes the string from register component.
Removed are all instances in libs or hardcoded in apps.
Starting with this patch literal passed to register,
serves as name for the flag.
All instances of SPDK_LOG_* were replaced with just *
in lowercase.
No actual name change for flags occur in this patch.
Affected are SPDK_LOG_REGISTER_COMPONENT() and
SPDK_*LOG() macros.
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Change-Id: I002b232fde57ecf9c6777726b181fc0341f1bb17
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4495
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Mellanox Build Bot
Reviewed-by: Anil Veerabhadrappa <anil.veerabhadrappa@broadcom.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Community-CI: Broadcom CI
It may have been a long time since the thread last executed
so ensure this time is accurate.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: Iaa4c35b50cdc05ebb41724ed9946c5232d242ee3
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4321
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
value
If the user passes NULL for the thread, just use the current thread
to get the last tsc.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I1a2b61d9765e1ef59927ffec7c49f2a2b62590f6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4320
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
If the operation function is not specified in spdk thread lib init.
Add a info logs to tell user that you should manage and poll the
thread.
Change-Id: I536c6954c129fbbbc2d19776866fa348d49688ee
Signed-off-by: Jin Yu <jin.yu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/2804
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Currently run count of poller has been incremented per execution.
It will be helpful for us to know how poller is busy by adding busy
count which is incremented only when some work is done.
spdk_thread_poll() has used the same timestamp in it, and so this is
the maximum we can do for now.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I0adfbf9a62c959499978124ecc97d377c96c3769
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1713
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Set 5 seconds timeout to wait until exiting thread is exited into
spdk_thread_poll(). After the timeout, collect error log and then
move the thread to exited forcefully.
Add necessary unit test case accordingly.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ied8f58a2023a3bbe098530810fd3288bef93c3e7
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1644
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Extract _spdk_thread_exit() from spdk_thread_exit() and
_spdk_thread_poll() calls _spdk_thread_exit() if the thread is in
the exiting state. spdk_thread_exit() changes to move the state to
the exiting state. The spdk_thread_poll() loop will end after the
thread moves to the exited state because the caller of
spdk_thread_poll() will check if the thread is in the exited state,
and break the loop if true.
If the user does not call spdk_thread_exit() explicitly, the reactor
has to terminate all existing threads at its shutdown. In this case,
multiple threads may have some dependency to release I/O channels or
unregister pollers. So the reactor has the large two loops, the first
loop calls spdk_thread_exit() on all threads, the second loop calls
spdk_thread_destroy() if exited or spdk_thread_poll() otherwise for
each thread until all threads are destroyed.
Besides, change the return value of spdk_thread_exit() to return
always 0. Keep it for ABI compatibility. Change ERRLOG to INFOLOG
for _spdk_thread_exit() because it is called repeatedly now. Remove
the check of I/O reference count from _spdk_thread_exit() because
_free_thread() cannot free I/O channel. Refine the unit test
accordingly.
Fixes issue #1288.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Iee5fb984a96bfac53110fe991dd994ded31dffa4
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1423
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Add enum spdk_thread_state made of RUNNING, EXITING, and EXITED, and
the current state to struct spdk_thread.
The state EXITING is not actually used in this patch yet.
Replace the flag exit simply by the state EXITED.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I6e5dc7184d50ae6d00e6ba00f5e2cf6045e5d48d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1630
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Change spdk_thread_exit() to nest a wrapper function, spdk_thread_exit()
and a static function made of function body. Include the check if the
state is running into the wrapper function.
These will make the following patches easier.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I81a57407acb772cd869819f2fac6665f61935369
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1642
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Previously the caller had to check if thread is not exited when
it calls spdk_thread_exit().
Subsequent patches will change return type of spdk_thread_exit()
to void, and so include the check int spdk_thread_exit() in this
patch.
If spdk_thread_exit() is called when the thread is already exited,
collect INFOLOG and return normally.
This will make the next patch a little easier.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I8b94261575e770485b33c0b37e76e770b77b417c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1639
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Update spdk_thread_poll() to count SPDK thread stats correctly on multiple
SPDK threads per reactor configuration.
spdk_thread_poll() gets start time and reads TSC at end as end time,
and then gets delta between them as run time. Run time is added to idle
time or busy time according to the result of polling.
Reactor overhead is included into the next thread which calls
spdk_thread_poll() now.
spdk_thread_poll() saves the end time to the current thread to use it
as the start time of the next thread.
Unit test framework for this patch and the next patch need to access
thread->tsc_last. In the next patch, reactor will use the end time of
the current thread to the start time of the next thread in reactor_run()
to realize the idea.
Hence add an new API spdk_thread_get_last_tsc(). The corresponding
variable is named as tsc_last and it is good and is aligned with
DPDK (DPDK has used tsc_start and tsc_end as variable name). But
last_tsc will be better as API name because the last TSC value is
easier to understand.
Then add necessary unit test and update the unit test framework.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I5e465e9283c032acb427576d0c90f9e1414f2271
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1048
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
This is another preparation to extende spdk_thread_poll() to update
thread stats correctly on multiple SPDK threads per CPU core
configuration as an new function spdk_thread_poll_ext().
As another preparation, factor out main loops of spdk_thread_poll()
to _spdk_thread_poll(). _spdk_thread_poll() will be called in
spdk_thread_poll_ext() in the next patch.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ie006359c00afc2e9b90e15f918f76cf1af0b7ce1
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1255
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Subsequent patches will extend spdk_thread_poll() to update
thread stats correctly on multiple SPDK threads per CPU core
configuration as an new function spdk_thread_poll_ext().
Thread stats will be updated separately by spdk_thread_poll() and
spdk_thread_poll_ext(), but updating thread stats itself is
the common operation.
Hence as a preparation, factor out updating thread stats operation
from spdk_thread_poll() to _spdk_thread_update_stats().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I93c40eb0363ca34f2150299b09c49f1401583832
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1242
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This will be used by upcoming spdk_top application.
Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I9ffcc3f2e36b8044bbc394938fc7a1dca1dc6892
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1211
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This is a preparation to support thread_get_io_channels RPC
in the next patch. The next patch will refer only name of struct
io_device, and so adding a helper function is better than making
struct io_device public.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I9bc9dd78f71aa1e32847dc4c67eb79dae9cfbf9d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/886
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Add an new JSON RPC thread_get_pollers to retrieve pollers of all
the threads. By adding a helper function spdk_poller_state_str(),
output poller state as string to improve readability. Most of the
code of thread_get_stats and thread_get_pollers are common and so
unify these two RPCs as possible as we can.
Sample output of thread_get_stats RPC in doc/jsonrpc.md was wrong
because thread_get_stats doesn't output ticks. Fix this together.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I003ffe569d3c0651ae65c5858eff8287f7e9031d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/604
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Add an new API spdk_poller_register_named() to set arbitrary name
to the created poller. If NULL, the name is set to the pointer of
the poller function.
To set the name to the string of the poller function name conveniently,
add an new macro SPDK_POLLER_REGISTER() together in this patch.
All debug or error logs are changed to output poller name from pointer.
The added name will be used in the new RPC thread_get_pollers.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I3be558dd795252f797e3e81fa2db2e8b128cf004
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/506
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
thread_get_pollers RPC which will be added in the upcoming patches
will need to access internal of all pollers.
Following the last patch, expose struct spdk_poller internally among
SPDK libraries.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I6844fc70165b4f127c49680ce592ac7b8c326cac
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/594
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
thread_get_pollers RPC which will be added in the upcoming patches
will need to access all pollers each thread has.
To avoid adding JSON related code into lib/thread/thread.c, expose
struct spdk_thread internally among SPDK libraries and RPC code will
access it.
The next patch will expose struct spdk_poller internally among
SPDK library for the same purpose.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I8da039db3021966ca1e28f6f086bb4c2a8eeb84a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/973
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Add an new API spdk_thread_set_cpumask() and enum SPDK_THREAD_OP_RESCHED.
spdk_thread_set_cpumask() can be called only from the current thread
and requires SPDK thread operation supports reschedule operation.
spdk_thread_set_cpumask() updates the cpumask of the current thread to
the specified value, and then invokes framework's reschedule operation
to the thread.
If spdk_thread_set_cpumask() calls multiple times in a single
spdk_thread_poll() context, the last value will be used in the
reschedule operation.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I7808626b10269543c1e2cd86793a504daa4b6389
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/499
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Add enum spdk_thread_op and two function typedefs spdk_thread_op_fn
and spdk_thread_op_supported_fn.
The first operation type of enum spdk_thread_op is SPDK_THREAD_OP_NEW,
and it is used as an alternative to spdk_new_thread_fn.
Add global variables, g_thread_op_fn and g_thread_op_supported_fn, and
then add spdk_thread_lib_init_ext() to initialize these.
spdk_thread_lib_init() requires both of thread_op_fn and
thread_op_supported_fn are specified or not specified.
spdk_thread_create() calls g_thread_op_fn() with SPDK_THREAD_OP_NEW
if g_new_thread_fn is NULL, g_thread_op_supported_fn is not NULL,
and g_thread_op_supported_fn(SPDK_THREAD_OP_NEW) returns true.
Update unit test to test these addition.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I56db903f62437f6ff3198248ffc5dede396c22bc
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/967
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Add an new API spdk_thread_get_by_id(). This will be used in the
subsequent patches to set the cpumask of the running thread to the
specified value.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ib5d02b9d7b499477c43e6527cf8f603d8323e063
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/966
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Add an unique ID for each created SPDK thread. Use a single 64 bits
variable, g_thread_id, and guard its update by the global mutex
g_devlist_mutex. For our safety, further thread creation is not
allowed if g_thread_id rolls over, and request user to restart SPDK
application.
Besides, as a minor update, move the debug log down and add ID to it
in spdk_thread_create(), and ID is added to thread_get_stats RPC and
framework_get_reactors RPC.
The thread ID will be used to set the cpumask of the running thread
to the specified value in the subsequent patches.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ic09f11d4c7175c3b89acba6a42e76063acd0d1a0
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/498
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: Ben Walker <benjamin.walker@intel.com>
This is a preparation to support voluntary thread termination by
calling spdk_thread_exit().
The comment in the header file has already said that all associated
I/O channels must be released before calling spdk_thread_exit().
This patch actually checks if it is satisfied in spdk_thread_exit().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I56ac50b561c6ca91d3dc2d60c21c8d91d38f081b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/823
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This is a preparation to support voluntary thread termination by
calling spdk_thread_exit().
Change spdk_thread_exit() to return -EBUSY if the thread has any
registered poller. We enforce all pollers including paused poller
are unresitered before the thread is marked as exited.
By this change, a bug was found in reactor_perf test tool. Fix it
by adding spdk_poller_unregister() and add the g_ prefix to avoid
future potential errors.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: If7f40357c9a6f4101b3998ea0da3cc46cc435031
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/487
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This is a preparation to support voluntary thread termination by
calling spdk_thread_exit().
Change spdk_thread_exit() to return -EINVAL if the thread is already
marked as exited. This will be helpful to detect wrong call sequence
of voluntary thread termination.
Besides, update reactor shutdown and unit test framework shutdown
to incorporate this change accordingly.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I2296c61e273bf4d9580656dcbc2da0e8a8f3bcf7
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/671
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This is a preparation to support voluntary thread termination by
calling spdk_thread_exit().
One of the subsequent patches will allow thread to exit only if
all of its pollers are being unregistered. After the thread is
marked as exited, only unregistering pollers will remain if the
exited thread does not accept registering new poller.
Hence in this patch, we change spdk_poller_register() to fail if the
current thread is marked as exited first.
Then, in subsequent patches, if we remove break from poller
processing in spdk_thread_poll(), poller unregistration of the exited
thread will complete, and we will be able to support voluntary thread
termination easily by checking only the thread is exited and idle.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I5b843a07049ef01a5ff402eb521e294182ce2ae2
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/822
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This is a preparation to support voluntary thread termination by
calling spdk_thread_exit().
By the last patch, the asynchronous release of I/O channel will
complete even after spdk_thread_exit() because pending messages will
be reaped.
Then this patch stops new allocation of I/O channel after
spdk_thread_exit().
Hence we will be able to release all I/O channels for exiting
thread within finite time.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I48a45bcba7c4b2c62d8c9d398ac35a584b533627
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/821
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
This is a preparation to support voluntary thread termination by
calling spdk_thread_exit().
Previously, the exiting thread had discarded all pending mesasges.
We change this to stop accepting any new message in spdk_thread_send_msg()
and reap pending messages in _spdk_msg_queue_run_batch().
Add unit test case for the new behavior. Adding g_ prefix to global
variables for clarification is done together.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ida78e7bb1b86357602aea6938dd514897b67edd6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/482
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Add spdk_thread_is_exited() to check if the thread is marked as
exited. This API will be used by reactor to destroy the thread
which exited voluntarily.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I2086984b7813e8a1f401852fde7ab263bcf8ef60
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/481
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Rename all variables and comments related with timed poller from
timer_poller to timed_poller.
This patch was originally to count poller and add the current
value to thread_get_stats RPC. This will be realized to add
thread_get_pollers RPC instead but renaming will be valuable itself.
So keep only renaming in this patch.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I73880b8df6ed35391383e0890f76b4e509690e06
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/479
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
the purpose of this commit is to avoid an entry into the error log in
the case that a thread does not exist, since there is no separate
function to check if a thread exists
Signed-off-by: Jesse Grodman <jgrodman@gmail.com>
Change-Id: Iec79b87e11e411bde59004baae1dc996864cec4d
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/481576
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Bdevperf tool had not called spdk_poller_unregister() called on the
same thread that called spdk_poller_register(). But it had not caused
any issue because spdk_poller_unregister() simply set the state to
unregistered. This design flaw has been fixed recently.
However the new pause feature has been added to poller and this
design flaw might cause any unexpected behavior if paused poller is
unregistered.
We do not know any other case such that spdk_poller_unregister()
is not called on the same thread that called spdk_poller_register(),
but we have no way to know it even if it exists. Hence let's add
assert for such cases.
Parsing poller lists managed by thread may be another option but
spdk_poller_unregister() is performance critical. So we do not check
list.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I9d91daaeb81fa33d5f042dbe7ddbd8ab6ea98d55
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479391
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
spdk_put_io_channel() was designed to be called on the same thread
that called spdk_get_io_channel(). spdk_put_io_channel() sends a
message to its own thread, to allow the context to unwind before
releasing the resources. This had the side effect to allow an
incorrect thread to call spdk_put_io_channel(). This patch will fix
that.
Bdevperf tool had a design flaw that needed the side effect, but
it was fixed recently. We do not know if we have any other case.
Hence add assert to spdk_put_io_channel() to find other case.
We found that unit test for blobstore had called
spdk_put_io_channel() and fix it together in this patch.
Besides, correct the comment for spdk_put_io_channel() in
include/spdk/thread.h not to create any other case in future.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I6ec7bf074818abef43b23ca40bc9385adac70a75
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479390
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
We should check the thread's state at the end of message callback, or
we may leak the message memory in case the thread was set to exit state.
Change-Id: Ifb67c3b5c39440c411eca1d045c11e8aa6c514cc
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/482206
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
The patch adds new interface for issuing messages during interrupts,
such as signal handlers. Without this, it'd be possible to deadlock
the application, as two different messages could be trying to enqueue to
the same ring, in the same call stack.
Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: I917aa41b7f3415af7c7a7d5fa91b964d727609b6
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478290
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Treat active pollers similarly to timed ones and don't discard
unregistered poller's rc. This patch is basically a copy of 7d3d2b62e
but for active pollers.
Change-Id: Ia85e73a6736b2924601150f8e61995eb56009c15
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/477252
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>
Added spdk_poller_(pause|resume) that allow a poller to be paused and
then resumed at a later point. These functions come in handy in cases
when a poller is known to be idle until a certain event occurs.
Change-Id: I7f21c80eb9ac4e8e1cf24d66f99da5687aafe358
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/477920
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
When a timed poller unregisters itself during execution,
we were continuing the loop without updating the timer_rc.
This would result in spdk_thread_poll() indicating that
the poll execution was idle rather than busy.
Note that the DEBUG print would have still been OK where it
was, since the poller variable itself was valid, even though
it had been freed. But it looked a bit awkward there, so I
moved it right after we capture timer_rc.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0673261ecea0e49db97b008a83b60a35f995f83d
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478120
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
In release builds, the assert() is compiled out, making
it look like the rc value is never referenced after it's
set.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I59305b0e928f2044146e30b7addc86f81e7a1d3f
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/473472
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This at least allows the caller to know there was a
problem, and that the messages wasn't actually sent.
SPDK by default creates huge rings so this problem
should never occur, but out-of-tree use cases may
send messages much more often and require at least
a notification when it fails.
While here, change the thread check to an assert.
There's no need to work around someone calling
this function with a null thread parameter.
Fixes issue #811.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie6d432d616be45c7a4232aff1548cef198702bc0
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/472438
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
SPDK_ERRLOG lists the function name, so remove old references that
assume it doesn't and reprint the function name.
Change-Id: I69da6ca0a25bf0eda07d8dad52bcfadf964ac715
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/469487
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>
256 bytes will be enough but not too large for the name of SPDK IO
device. Use fixed size string for the name of SPDK IO device and
reduce the potential malloc failure. If the length of passed name
is longer then 256, it will be cut off without error.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I618b82a1d07769df7c775280fbf364cbcfdde403
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459721
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
256 bytes will be enough but not too large for the name of SPDK
thread. Use fixed size string for the name of SPDK thread and
reduce the potential malloc failure. If the length of passed name
is longer then 256, it will be cut off without error.
Change-Id: I13a24997a73a8365c8bf5e093f2bd78861ba6660
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459720
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
DPDK rte_ring_enqueue_bulk() has free_space parameter to return
the amount of space in the ring after enqueue operation has finished.
This parameter can be used to wait when the ring is almost full and
wake up when there is enough space available in the ring.
Hence we add free_space to spdk_ring_enqueue() and spdk_ring_enqueue()
passes it to rte_ring_enqueue_bulk() simply.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I9b9d6a5a097cf6dc4b97dfda7442f2c4b0aed4d3
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/456734
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>
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>
This reduces some repeated code. I could have made both paths
call spdk_thread_exit(), but I want to add some stronger checks
around the tls_thread there eventually that wouldn't be valid
in the other path.
Change-Id: I61e1484536d8aef05f120d9ed394312b41f8445a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/453575
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>
We could return from spdk_for_each_thread() without
unlocking the global threading mutex, rendering the
entire SPDK application useless.
Change-Id: I641c7b36db996f9a36310332279648014579de83
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452087
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@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>
Before enabling SPDK thread scheduler,
each POSIX thread name was reactor_% (% was the core number).
After enabling SPDK thread scheduler, the name of the master POSIX
thread is reactor_% (% is the max core number), and the name of the
slave posix threads are lcore-slave-% (% is the current core number).
SPDK threads are light-weight threads - sometimes also called
green threads or fibers, and so are independent from posix
threads.
But reactor is tied to the POSIX thread in the SPDK event library.
So SPDK thread doesn't rename the POSIX thread at its creation
but reactor renames the POSIX thread at start instead.
This change makes POSIX thread name compatible between before and
after enabling SPDK thread scheduler.
Change-Id: I26e8dabc73e163c9f74e18b3640cf54954603b1f
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/451712
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@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>
This prevents issues where spdk_thread_poll may report
that it did not useful work (for the one poller it ran),
causing the system thread to go to sleep.
Change-Id: I7a4842d5e399758c19268aee343a001ccfc88a3a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440598
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>
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 wasn't allowed at first to make debugging these
thread changes easier. Now they're mostly solid, so
let's allow this behavior.
Change-Id: Ida689c738ed550ec46c3cb6cab6788a651c6088b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/441159
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.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>
The user can now spawn SPDK threads within the context of another
SPDK thread, opening up the possibility of spawning threads from
within SPDK libraries.
Change-Id: I308eebc3f1d6f51da7236621ef2f67817f04ce8b
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/440760
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>
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>
SPDK threads are no longer mapped 1:1 to system threads. They are
instead identified by the memory address of the spdk_thread object.
Change-Id: I417f8376cebd2ee94f624f4436e6394b51486063
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/437999
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: 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>
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>
Now that the thread is stored in a thread local
variable, the scope of the locking can be greatly
reduced.
Change-Id: Ic44934fff352be0fa5d54746226ef707aceae7b5
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/435940
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
In addition UT were changed to set_thread() before registering
io device.
Change-Id: I959dbc800db9c1f50564274a73d71e05e843d8c9
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/433611
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Previously, a pool of events per socket was created for NUMA
locality. However, when passing a message between threads,
the event would be taken from one pool and put back into another,
resulting in imbalances.
At this time, I do not see an efficient way to allocate the events
so that they remain NUMA local. We'll work on that over time.
However, for correctness right now, go down to a single global
pool of events.
Change-Id: I09f8b0c5c928777e8274c53c6dce21b9c346e2a5
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/433519
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: 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>
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>
All io_devices now have an associated name - so add
that name to relevant error messages to help with
debugging.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I8ef678681fc29daed08e2f95b3096c5dce429ab9
Reviewed-on: https://review.gerrithub.io/433203
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
All io_devices should be unregistered before the
application exits. If not, print an error message
for each io_device that still exists.
Eventually we may want to assert() if any io_devices
are found, but for now we'll just stick with the
error message.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If017edf40fc2904ed772bc1c6124f06fc9b49bcd
Reviewed-on: https://review.gerrithub.io/433202
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: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Eventually we may want to assert if any channels still
exist when the thread is freed, but for now we'll just
stick with the error message.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I909a409f34c7783a32d3300942897f591c90fca1
Reviewed-on: https://review.gerrithub.io/433201
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@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>
1.nvmf: change the return type of calloc failed to -ENOMEM and
keep consistency in this file.
2.thread: revise rc condition to ( rc!= 0),to deal with
all abnormal return.
Change-Id: I7cccb548f30448eaa1bac1a5904c3edcad9c1208
Signed-off-by: yidong0635 <dongx.yi@intel.com>
Reviewed-on: https://review.gerrithub.io/431459
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ie122f37ea93d431b5e35cf46e56f53aa6795ef2c
Signed-off-by: Liang Yan <liang.z.yan@intel.com>
Reviewed-on: https://review.gerrithub.io/429568
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Piotr Pelpliński <piotr.pelplinski@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.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>
This makes it easier to debug failures.
Change-Id: Ic1099ec08308d5e50dd9fe03798dc0873579f2cc
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/423961
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>
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>
