This function kicks off the draining process, so name it appropriately.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: Ic447aaa01612f6355ff4404d476419b55a3d0cff
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1386
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
In practice this worked out fine because the next step did an
spdk_for_each_core() which would always complete after the
performance dump with our current event library. But just in case,
make this an explicit wait.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I07b96772ba15113cd04453243c980c6e405be872
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1385
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
More descriptive name. This is the number of outstanding
construct_job operations.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I5c79ae06a521a8b6ef930146b0ce08791370a25c
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1384
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Begin shifting to a model of "jobs", each defined as a single-threaded
I/O pattern.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: If6c0cfc1a59d3acdec1e1e6ad65a16f810582aa8
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1382
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
There's one of these per core and it's a collection of other
jobs to run, so name it reactor.
In the longer term, this reactor will go away and each "job"
will map to a separate spdk_thread.
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: Ica5b19e6edb2509b48059d829e22a734acd6b298
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1381
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: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
A previous fix for miscompare had a slight issue with the scenario
where we chose an offset and then discover that it's already taken
because we've wrapped to this location before the previous IO
completed. In such case, we intended to bump the offset to just go
to the next block however we only bumped the local variable so the
next IO submitted will overwrite the previous.
The fix is simply to use the previously incremented target->offset
and increment it again for the next IO.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I26661eb0631ac50cc4f86f42f1d1789d297e204d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1250
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
There was no sync between the start of a w/r/v operation at
a specific block with the previous completion. This resulted
in data miscompares either because the initial Q depth was
sized such that a disk wrap need to occur to complete it or in
the event that an IO takes longer to complete than when bdevperf
loops back around to that offset.
Fixes#1208
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ifa55da54246735e7b603fafd34718965b0f27b94
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1180
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: Ben Walker <benjamin.walker@intel.com>
To provide some more clues when this happens.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I098aaea906a1057e63f07c40a1ebb346a283983d
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1070
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>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
At startup, use number of created io_target groups to detect completion
and move to the next step. By returning completion message to the
master thread, we can avoid using any atomic operation.
At shutdown, we can use spdk_for_each_channel() conveniently. Put
voluntary spdk_thread_exit() calls into the callback to
spdk_put_io_channel().
To maintain the original behavior, number of threads created is
equal to the number of cores that SPDK app uses.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I92ca4b1c1e8da0f45b47367bc2387701f4a9742f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/890
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Output performance dump per SPDK thread by using
spdk_for_each_channel(). This change is safe even when shutdown
case because spdk_for_each_channel() is serialized if it is
called on the same thread.
Keep lcore information because it is still valuable to know which
lcore each thread ran on for.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I996a4ca2c787d04672743b09a9415145cd8d0171
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/645
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>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This patch makes bdevperf_construct_targets_tasks() asynchronous
by using spdk_for_each_channel().
The next patch will make performance_dump() asynchronous even when
shutdown case by using spdk_for_each_channel().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I1ebf39fe89a944d977d6f1808cf8607e8f477758
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/644
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>
This is a preparation to make bdevperf_construct_targets_tasks()
asynchronous by using spdk_for_each_channel() in the next patch.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I76c827550b2920abcba14abd7f15a3111ad10d39
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/643
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>
Squash changes for _bdevperf_construct_targets() and
bdevperf_free_targets() into a single patch to shrink the
patch series to reduce the burden of reviewers.
The pupose of the whole patch series is to move io_target from
core based to I/O channel based, and create SPDK thread per I/O channel.
It was not possible to create SPDK thread per core and then associate
target group with I/O channel as long as I tried.
So this patch moves io_target from core based to I/O channel based.
The later patch will create SPDK thread per I/O channel.
Each core has default reactor thread for now and so we can use
spdk_for_each_channel() even when we do not create and destroy SPDK
thread per target group yet.
The following is the detailed explanation:
_bdevperf_construct_targets():
Add a context for _bdevperf_construct_targets() to use
spdk_for_each_channel().
If g_every_core_for_each_bdev is false, set the target group to the
context and create target only on the group which matches the passed
group. If g_every_core_for_each_bdev is true, create target on all
groups.
Only the master thread can increment g_target_count. Hence hold
created number of targets temporary on the context and add it at
completion.
As a result of these changes, spdk_bdev_open() is called on the
thread which runs I/O to the bdev.
Hence bdevperf_target_gone() doesn't use message passing, and
bdevperf_complete() calls spdk_bdev_close() before sending
message to the master thread. Additionally, unregister pollers
directly in bdevperf_target_gone().
These changes also fix the potential issue that spdk_bdev_close()
would be called on the wrong thread if spdk_bdev_get_io_channel()
fails in bdevperf_submit_on_group().
bdevperf_free_targets():
Free each target on the thread which created it by using
spdk_for_each_channel().
This will make possible for us to use spdk_for_each_channel() for
performance dump even for shutdown case because
spdk_for_each_channel() is serialized if it is called on the same
thread.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I4fcdb1024adf4704d3c59215da5669dfdc6cca1b
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/641
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>
Follow the idea of bdev_get_iostat in module/bdev/rpc/bdev_rpc.c.
Add a global variable g_bdev_count and then set it to 1 as sentinel
value in bdev_construct_targets().
Subsequent patches will make _bdevperf_construct_targets() asynchronous.
Then bdevperf_construct_targets() will be truely asynchronous.
This patch is too small to be an independent patch but keep to
hold previous review result.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I49d0b6e6d61df65d4eb31c402f98cc4300482e20
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/639
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Firstly, change unmap suppor and I/O size checks to do once per
bdev. It is enough to check if unmap is supported and check if
I/O size is multiple of data block size once per bdev. Hence move
these checks from bdevperf_construct_target() to
_bdevperf_construct_targets().
Secondly, use calloc() to remove unnecessary zeroings in
bdevperf_construct_target().
Thirdly, factor out getting next io_target_group from
bdevperf_construct_target(). This is a preparation to make
bdevperf_construct_target() asynchronous by using
spdk_for_each_channel().
These may be better to break-up but these are already included in
the long patch series. So to reduce the burden of reviewers,
squash these into a single patch.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I2cb94c8aa2b6b1a1b9e9a04da533e1fd093f8f29
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/640
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>
Factor out constructing multiple targets for a single bdev from
bdevperf_construct_targets() into an new helper function
_bdevperf_construct_targets().
Then change the return type of bdevperf_construct_targets() to void
and continue creating targets for subsequent bdevs even if failing
for any bdev. Additionally, remove a couple of comments in the source
code to avoid misunderstanding.
These changes will make us easier to use spdk_for_each_channel()
in bdevperf_construct_targets().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I3363931749b863c8de619939939d401f14e43d15
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/638
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>
Creating targets, creating tasks, and then running I/O is the actual
ordering of start-up. So adjust ordering of function calls to make
easier us to follow.
Change the return type of bdevperf_construct_targets_tasks() from
int to void, and call bdevperf_test() at the end of
bdevperf_construct_targets_tasks(). Then replace bdevperf_test() by
bdevperf_construct_targets_tasks().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Id1396ff4ba199778300f5ddaf79db5f8f2e0ccb6
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/642
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>
Move bdevperf_test() into bdevperf_construct_targets() from
_bdevperf_init_thread_done() and rpc_perform_tests(). Following the
last patch, this consolidation will make the code a little cleaner.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ided4653941f45ff6ac8edbea504560cc8a9fb5a0
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/637
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>
The copy engine library, modules and public APIs have been renamed.
Use of the word `copy` has been replaced with the word `accel`
short for accelerator in preparation for adding new capabilities
in the future. Additionally, APIs for what was previously called
the `memcpy` engine have been renamed to identify the engine as a
software accelerator.
Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: Ia607aa718416146fbba1e6792b8de0f66bd8a5de
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/576
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: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Subsequent patches will call bdevperf_test() as callback to
bdevperf_construct_targets(). Changing return type of bdevperf_test()
to void and including its error handling will make the code cleaner.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I30fe38cfb73fbc593d079d5b66a540c0ce96fe19
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/636
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>
_end_target() is an exception, and move just above bdevperf_complete().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I2197a3b7ceb36ab29f0b69e31f3babd4e996f193
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/635
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>
Put rpc_perform_tests() next to bdevperf_run(). This will improve
readability a little.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I8816a88be13e794f39ded3ff12e9a76e40c8282a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/514
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: Paul Luse <paul.e.luse@intel.com>
Remove two global variables and use variables per target instead.
g_min_alignment:
Bdevperf creates task on a target after creating the target, and
we has removed any limitation about alignment described in the comment.
Remove g_min_alignment and use each bdev's alignment to call
spdk_zmalloc() instead.
g_buf_size:
We had set the size of task->buf by not g_buf_size but g_io_size
by mistake. We have not used any global buffer pool and can use
buffer size per io_target instead.
Delete g_buf_size and add buf_size to struct io_target. Then
initialize target->buf_size in bdevperf_construct_target() and use it
instead of g_buf_size including the fix in
bdevperf_construct_task_on_target().
Besides, as a minor cleanup, remove duplicated initialization of
global variables in this patch. Global variables are already
initialized at their definition. Remove duplicated initialization
from main() function. It is ensured that global variables are
automatically zeroed but write initialized value expilcitly for
compatibility and clarification.
These will be helpful to parallelize targets and tasks management among
multiple threads.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Iba23dec3e1da8810da7523da09bae858eb4484a2
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/512
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Use spdk_thread_send_msg() for notification of bdev hotplug
and test completion instead of spdk_event_call().
Each I/O target group is associated with SPDK thread now. Hence
use spdk_thread_send_msg() to do bdevperf_target_gone() on the
specified thread. The group is held in struct io_target by the
previous patchm and remove target->lcore safely because it is
not used anymore.
Then use spdk_thread_send_msg() to notify master thread.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I88eadbdd1f120161cf484793f14f5eb0b44d010f
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478818
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: 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: Jim Harris <james.r.harris@intel.com>
Register the global bdevperf object as an I/O device by
spdk_io_device_register(). Create and destroy I/O target groups
asynchronously by using spdk_for_each_thread() and
spdk_for_each_channel().
spdk_for_each_thread() and spdk_for_each_channel() serialize the
execution among multiple threads, and any lock is not necessary.
Additionally, for bdevperf_submit_on_core() and
bdevperf_stop_io_on_core(), replace for their loop + event call by
spdk_for_each_channel() and rename them by
bdevperf_submit_on_group() and bdevperf_stop_io_on_group(),
respectively.
This advances the work to move bdevperf from core based to thread
based.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I63b512d0b8e734e862afe1f7a4053414b99204d7
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478780
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
When RPC kicks the test and the test results in error, RPC response
should return error but bdevperf application should not return error.
RPC can kick the test multiple times, and if RPC kicks the test again
and it completes normally, RPC response should return success.
So reset g_run_rc to 0 after sending RPC response.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I59a7c06a293ba7f7b5caa8171bcfb54d736524da
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479914
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Previously bdevperf_free_targets() had freed not only io_targets
but also io_target_groups. This had made repeated runs by RPC
impossible. This patch series will fix this issue later but we
cannot wait for that and fix the issue now.
Fixes#1139.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I88cf5725579b704bc3826bd4c0b2dd9f4e70db30
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479912
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
_target_gone() and end_target() do almost same operations. We had
not unregistered pollers at the cases that sets target->is_draining
to true. The later had hit assert when the test ended with I/O error
before completion because when target->run_timer is expired,
end_target() would be called after target is freed. Hence we do
both in this patch.
Factor out the operations from _target_gone() and end_target() into
a helper function.
Then, when the target exits with error, unregister pollers of the
target immediately by replacing setting target->is_draining to true
by _end_target(target). We had seen the assert for a single case
but apply the fix for all cases.
Fixes issue #1140
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: If39779817ed99c9441e368c1d4512c66d13d3378
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479911
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Add struct spdk_bdevperf and include header of io_target_group list
in it, and then allocate its global instance g_bdevperf statically.
Rename g_head by groups for clarification.
The next patch will register g_bdevperf as SPDK IO device and
allocate io_target_group as context of the corresponding IO channel.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I6755ce8cc05b00cbc0d5dc7983ec01fe3483f4cf
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478779
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: 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: Changpeng Liu <changpeng.liu@intel.com>
Remove a parameter from bdevperf_fini() and rpc_perform_tests_cb()
and they refer g_run_rc directly. This is a preparation to the next
patch to avoid introducing any dynamically allocated context.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I42f1c7e8bc662799b3fcbf2769139174bb527314
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478834
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
We don't have ordering constraint between bdevperf_free_targets()
and sending RPC response. So extract bdevperf_free_targets() from
bdevperf_fini() and rpc_perform_tests_cb() and inline it into
bdevperf_test_done(). As a result of this change, bdevperf_fini()
calls just spdk_app_stop(), but is still necessary in the subsequent
patches. So keep bdevperf_fini().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ie8ed2d04db754b8a265296932f73d3a602d1f90b
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479373
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Factor out test finish operation of command line invocation case and
RPC invocation case. Then apply the new funciton bdevperf_test_done()
to all calls bdevperf_fini() or rpc_perform_tests_cb().
The purpose of this refactoring is as follows:
- Consolidating finish operation improves code readability and
maintainability, and may enable further improvement in future.
- The next patch will consolidate bdevperf_free_targets() from
bdevperf_fini() and rpc_perform_tests_cb() into bdevperf_test_done().
This refactoring is a preparation.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I06801541e4c4ed28774debad56d901dbeb5a9193
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479372
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
io_target_group manages io_targets, and hence checking g_head
should be done earlier than checking g_target_count.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I112018d8f487b387ae5f4f444a342be2c8da167d
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/479350
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Change bool g_run_failed to int g_run_rc. If any error is detected
during bdevperf running, negative return code is directly set to
g_run_rc. Then g_run_rc is passed to rpc_perform_tests_cb() or
bdevperf_fini().
Besides, we had updated g_run_failed even after spdk_app_start()
returned. However return code of spdk_app_start() might not be of
bdevperf_run(). Hence change main() to return the return code of
spdk_app_start() simply without updating g_run_failed.
Additionally, even if g_target_count becomes zero in
spdk_bdevperf_shutdown_cb(), g_run_rc may indicate error. So,
change spdk_bdevperf_shutdown_cb() to pass g_run_rc to
bdevperf_fini().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ia85680679087c3106ba687d7e58027ae8ff4a5c7
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478833
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
bdevperf_fini() had expected to get one but rpc_perform_tests_cb()
had expected to get negative errno for any error. Using negative
errno will be reasonable and change the code accordingly.
The next patch will unify local rc variables and the global g_run_failed
by changing g_run_failed to g_run_errno.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ia43da0793f8e77a5d5491758589e9b77f4cf86e7
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478832
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This is a preparation to subsequent patches. They will make start
and stop of bdevperf asynchronous. Encapsulating free targets and
call app_stop() will be helpful for them.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I1a86d787614be048cec66e5d5fcfeb85de843ad5
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478817
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
We will use SPDK application framework (SPDK thread, IO channel, and
etc) to manage IO target groups, and will need to free IO target
groups before exiting bdevperf application. As a preparation,
move bdevperf_free_targets() before returning from spdk_app_start().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Id695a88107f87a9573c281f7f7d26d91d3a307b5
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478778
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Due to the last patch, we can use rpc_perform_tests_cb() in
rpc_perform_tests() simply and remove the duplicated code.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Id56da12fb5c52b6d178912f2f6cc7ead8a9cc36e
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478761
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Subsequent patches will make bdevperf_construct_targets() asynchronous
and call bdevperf_test() as its callback. Moving g_target_count
check into bdevperf_test() will make the change easier.
As a result of this move, rpc_perform_test() is simplified a little.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I308ab472a0021278af1a1f5aa65268126a60673f
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478760
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Fix the issue that target->run_timer and target->reset_timer needed to
be called on the core which runs the target.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ia36681ac51a46f272e5738d0ae63838939e71e28
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478712
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
spdk_put_io_channel() sends message if the core on which it is
called is different from the core which called spdk_get_io_channel().
However, ch->ref is guarded by mutex at free and we should call
spdk_put_io_channel() on the core which called spdk_get_io_channel()
as possible as we can.
Hence move spdk_put_io_channel() from end_run() to bdevperf_complete().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I8816b28625869662c6b9124036b619b76bf96a3c
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478709
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This patch changes io_target_group from array to linked list
and removes g_coremap.
In particular, change how to choose io_target_group for each
target, and reverse if condition in performance_dump(). These
changes will the code clearer.
Besides, remove blockdev_heads_destroy() because it just calls
bdevperf_free_targets() now.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I170a1c58fe2df9a11902224dd8634462a9af6123
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478565
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
The role done by the variables has been replaced by lcore of
struct io_target_group. So we can delete them safely.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I2ed856c8ccfda1d72b3fc97677fecaf295df37af
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478706
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: Seth Howell <seth.howell@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Hold associated core ID in io_target_group and use it later.
This simplifies event calls in bdevperf because we don't need
to get core ID from io_target.
The next patch will delete g_coremap safely because io_target_group
manages lcore correctly now. lcore of the struct io_target will
be deleted too but it will be more later.
The subsequent patches will move bdevperf from core based to
thread based and the added core ID will be removed eventually in
this patch series. However these changes are helpful even so.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ia763a79bc3810a15485285aebb9fc15a8d48332f
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478705
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Add struct io_target_group and chain associated io_targets to it.
Particularly, replace current target->next pointer by TAILQ, pass
not the head io_target pointer but the io_target_group pointer to
event call, and use TAILQ_INSERT_HEAD() in bdevperf_construct_target()
to keep the current ordering.
Besides, add pointer to the queued io_target_group to struct
io_target to use it later.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ib37db825a863f7795c55c19fae0d38efd80c607e
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478563
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Number of entries of the array g_head is spdk_env_get_core_count(),
and hence we did not need to break from some for loops. For them,
continue to the next iteration will be more appropriate and do the
changes in this patch.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I6e97099622d58f44d92482beaf24ca61de4ca038
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478756
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Extract bdevperf_target_get_task() from bdevperf_submit_single().
Then inline the contents of bdevperf_prep_task() into
bdevperf_submit_single() and remove bdevperf_prep_task().
These two patches simplify a little weird nesting and parameter
passing of bdevperf_submit_single().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I37f4ca732d6d9479553365cd612b90dec51e2228
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478690
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
This patch and the next patch will simplify the nesting of task
submission.
Factor out the operation to get free task from io_target into a
helper function bdevperf_target_get_task(). Use
bdevperf_target_get_task() in bdevperf_submit_single() and
reset_target().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I4cb147a5a6c84cc2b0e517dc35a106d37affaa10
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478689
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
Other tools have already changed these units to IOPS and MiB.
Unify the units, that makes the result comparing more clear
with bdevperf and perf.
Signed-off-by: dongx.yi <dongx.yi@intel.com>
Change-Id: Iedc47f5757839e1abbcbaf5d97179c90ab130773
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/478280
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: Alexey Marchuk <alexeymar@mellanox.com>
When we are using bdevperf for some sort of reset test, we need to make
sure that it doesn't cause failed requests to stop the test. We already
have the g_reset flag, but we can't use that for tests where we only
want to simulate a target disconnect event.
Change-Id: I0cbf495708a1e6680682b099e8c17862ec6ff3e2
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/473761
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Alexey Marchuk <alexeymar@mellanox.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Add a new parameter "-C" to allow to send I/Os to all specified
bdevs from all allocated cores. This means any bdev will get I/Os
from all specified cores. This is same logic together with the "-T"
parameter to specify one bdev.
Change-Id: I1e38d49824afe8084fcad72b18649657eb5c50cd
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/470805
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
If number of bdev is smaller than number of configured
cores, the bdevperf tool will exit abnormally.
Change-Id: I88e08d1bc71af8b927c701c80f6ddd2bf22c659c
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/469669
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
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>
When zcopy APIs are used, target->buf cannot be passed directly
to the bdev layer. Hence in addition to the last patch, copy target->buf
to the buffer allocated by spdk_bdev_zcopy_start() when g_verify or
g_reset is true. When g_verify or g_reset is true, a little performance
degradation will be acceptable.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I2caa4d0423f727954220c4ceac6b37f1b532013d
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467901
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Add a bdev_io pointer to struct bdevperf_task.
In bdevperf_zcopy_get_buf_complete() which is the callback to
spdk_bdev_zcopy_start(), bdev_io is saved into the current task.
Then bdevperf_submit_task() will call spdk_bdev_zcopy_end()
by using the saved bdev_io.
Besides, when spdk_bdev_zcopy_start() is called with populate=false,
increment target->current_queue_depth when it completes successfully,
and do not increment target->current_queue_depth when the corresponding
spdk_bdev_zcopy_end() is called with commit=true.
The reason is that IO processing is already started when
spdk_bdev_zcopy_start() is called.
The next patch will use zcopy APIs for write I/O with verify or
reset cases.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I12f3b1ccac726abe345a64f06e33d65d2a3538fd
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467900
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>
This is a preparation to use zcopy APIs for write I/O.
When we use zcopy APIs for write I/O, submit_task() will be called
in the callback to spdk_bdev_zcopy_start().
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I15bfce5b39ddd65459274fad7628f2c8fbb22327
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467899
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>
This is a preparation to use zcopy APIs for write I/O.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I685d0e1e5860c7ec72d4680c48ee7c0b5e9071bd
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467898
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>
This is a preparation to use zcopy APIs for write I/O.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: I7c544fc08db029e1b5ff32458e53dcbb014a5722
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467897
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>
Two return code checks are added to bdevperf_complete().
Checking if return code is not false will be enough.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Ic097e37c2d74aa3860bb06931f320c9f18c45640
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/467896
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>
After recent changes, that function can not return
NULL anymore, so remove all redundant checks from
various SPDK libraries.
Change-Id: If80344b6fa81ad5f87a7086804dba221522cd7e2
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/464175
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Seth Howell <seth.howell@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Starting with this patch it is possible to issue
"perform_tests" RPC to bdevperf application.
It will allow to configure the bdevs after startup,
but before starting the tests.
bdevperf in addition to usual cmd line params for tests,
need to be started with '-z' argument.
After that it is possible to start test using
'./bdevperf.py perform_tests'.
Tests can be issued multiple times in the same app run.
At this time the RPC does not take any arguments
for the tests. All are assumed to be set in
the command line.
This is series for adding RPC to bdevperf app.
Change-Id: If71853b1aa742f9cbf3d65c8d694a0437aad4500
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/458598
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Previously particular tests results were printed out
after stopping the app framework.
Since RPC will allow to start/end tests without ending
the app, showing results is moved for the very end of tests.
This is series for adding RPC to bdevperf app.
Change-Id: Iae330af9f3e53e9e045248be399ee420e57f7f73
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460446
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
No need to stop IO on all cores for the targets,
if there are no targets configured.
At this time it is not possible to trigger that,
but in the future shutting down the app when
no test is running will not exit cleanly.
This is series for adding RPC to bdevperf app.
Change-Id: I5feb75d630c4628e0cdf1ee749a16ec93d573aea
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460445
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Separate out bdevperf_free_targets() so that in the future
RPC can directly call it after completing the tests.
This is series for adding RPC to bdevperf app.
Change-Id: I53b17022342fffbd6c8a763247e0cd20928a4117
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460444
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Separated out bdevperf_test() from bdevperf_run(),
so that in future RPC can directly call running the tests.
All global setup done at start of the application remains
in bdevperf_run().
This is series for adding RPC to bdevperf app.
Change-Id: I85950d4941d4325486a7dcf89f9766dcdd302657
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/460443
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
spdk_dma_*malloc() is about to be deprecated.
Change-Id: I3bd2c284a210acb3bc31a6443e52a237c4c4d1ae
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/459552
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Bdevperf up to now didn't use unregister callback when opening target
block deice. This is unsafe if test scenario involves target bdev
unregistering voluntarily, although with recent bdev layer update
not registering hotremove callback has become safer.
To be on the safe side, this patch registers a callback to transit
gone target into the I/O drain mode in case the target unregisters
during runtime.
Changes wrt previous versions of the patch:
- incorporated review comments
- updated callback functionality
- updated patch description.
Change-Id: I0dad2f4a7cf4acb22b363e23e4b670ca73d8c6f2
Signed-off-by: Andrey Kuzmin <akuzmin@jetstreamsoft.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/447956
Reviewed-by: Ben Walker <benjamin.walker@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>
Data offset are intended to correspond to DATAO in NVMe/TCP and
Buffer Offset in iSCSI.
Previously for iSCSI, buffer offset had been merged to start block
address, but passing buffer offset separately from start block address
clarifies the logic more.
On the other hand, for NVMe/TCP, passing DATAO separately from start
block address will be critically important because DATAO will bave any
alignment and will be necessary to use for not only reference tag
but also guard computation.
This patch adds data_offset to struct spdk_dif_ctx and adds it to the
parameters of spdk_dif_ctx_init(). ref_tag_offset is also added to struct
spdk_dif_ctx and it is computed by dividing data_offset by data_block_size
and is used to compute reference tag.
The next patch will use this change when getting DIF context in SCSI.
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Change-Id: Id0e12ca9b1dc75d0589787520feb0c2ee0f844a5
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457540
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>
Moving verifying test parameters to single function function.
This is start of series that will add RPC to start bdevperf tests,
allowing configuration beforehand.
In future verify_test_params() will be used to verify parameters
passed via RPC as well.
Change-Id: I0aff7d9fa9f99205b3559b0ea081aa3690013faa
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457223
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Allow the user to select target bdev to be used by bdevperf. It's useful
when the config contains multiple bdevs, but only one is supposed to be
utilized by bdevperf directly.
Change-Id: I51aa645dcf60a4413057d86f68fe24442b280367
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/456787
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
The target list is now updated inside bdevperf_construct_target. That
way, if the target is successfully created, it'll already be on the
target list once this function finishes.
Change-Id: I364c45005c28deadae37615b6ac85f3860fc5080
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/457089
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Use separate buffers for metadata transfer if bdev supports it.
Change-Id: Ie0fa3d3c1f5b14f99c13f2d6b5b22edc216c6d64
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/451468
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>
This callback type takes 1 argument instead of 2.
Change-Id: Ic3710fafb2828f08fc064f7658849b3d20521092
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446997
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 never used this anywhere, and I need to move to a model where
the start up action is a thread message instead
Change-Id: I6b21ba9afb93a3245aceca2fe24713ffd16d0933
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/446986
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Allow user to add seed value for guard compuation to DIF context.
This will avoid the guard being zero in case of all zero data.
NVMe controller doesn't support seed value for guard computation
explicitly, and hence if we want to use such a seed value in
NVMe controller, we have to format metadata more than 8 byte,
and add seed value into the reserved metadata field.
But some popular iSCSI/FC HBAs and SAS controllers have supported
seed value for guard computation, and so supporting seed value
in the SPDK DIF library is very helpful for some use cases.
Hence this patch makes the DIF library possible to specify seed
value for those use cases.
Change-Id: I7e9e87cb441bf263e64605c7820409fdc22dd977
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/444334
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: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: wuzhouhui <wuzhouhui@kingsoft.com>
g_io_size is already verified not to be zero when args are originally parsed,
and if g_io_size < data_block_size, then g_io_size % data_block_size != 0.
So current error log is not correct and just testing if IO size is multiples
of block size will be correct.
Change-Id: I5d32425e251773f1c96740c674b4d238dfb80f8d
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/444310
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>
Extract DIF check type settings from the bdev and hold them
in the target, then generate DIF for write I/O based on them.
Change-Id: Ice85121423b6b8545e45d7def1aabed59ed6ce8e
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443357
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>
Enlarge data buffer to include metadata if md_size is not 0 and
md_interleave is true of target bdev. Then generate and verify
data pattern by skipping metadata field.
If md_size is not 0 but md_interleave is false, return immediately
until bdev supports APIs with separate metadata.
Change-Id: Ia3c2ae5fbcc5b7612585f1dfeb5d30e821d48acf
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443356
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>
The possible reason of failure of task construction is out of memory.
Hence it's OK to return pointer to the constructed task simply.
Change-Id: If6e270caefb61192c8f0055506d957c3c5d07016
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443355
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>
Bdevperf have returned immediately if -ENOMEM, continued if failure
due to other reasons, and registered the created target otherwise.
So, keep this behavior by passing the reference to the pointer to
struct io_target, and check both return code and the value of the
reference.
And this refactoring will clarify the logic related with target
assigment to cores.
Change-Id: I24593f7b4523daf4395643bdc8886499c36ea3c7
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/443354
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>
Coremap is a global variable in bdevperf, and add the prefix "g_" to
it.
Change-Id: Ia22802ce2152d8748cffc6916197be4ddd615618
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/444013
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
-S takes a parameter for how many seconds to wait
between each stats output - that was missing in the
usage message.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I05a2f770996a72db4894b275932a308e2355cbcc
Reviewed-on: https://review.gerrithub.io/c/443282
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>
The stop handler already calls blockdev_heads_destroy(), so we
don't need to call it if bdevperf_construct_targets_tasks()
fails. Calling it twice actually results in double-frees and
other types of memory corruption.
Fixes#592.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iba92b1ae64453036829a67ab6f3dad970a368af0
Reviewed-on: https://review.gerrithub.io/c/442628
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: Changpeng Liu <changpeng.liu@intel.com>
Error check of strtol is left to users of it. But some use cases
of strtol in SPDK do not have enough error check yet.
For example, strtol returns 0 if there were no digits at all.
It should be avoided for each use case to add enough error checking
for strtol.
Hence spdk_strtol and spdk_strtoll do additional error checking
according to the description of manual of strtol.
Besides, there is no use case of negative number now, and to keep
simplicity, spdk_trtol and spdk_strtoll allows only strings that
is positive number or zero.
As a result of this policy, callers of them only have to check if
the return value is not negative.
Subsequent patches will replace atoi to spdk_strtol because atoi
does not have error check.
Change-Id: If3d549970595e53b1141674e47710fe4dd062bc5
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/c/441626
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: wuzhouhui <wuzhouhui@kingsoft.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Need to check user input and return status of parsing
to prevent app or target from crashing.
Input checking function will be added in the future.
Change-Id: I8167ac13306ae4f81e2cacb80edd9dcf9382c374
Signed-off-by: Chunyang Hui <chunyang.hui@intel.com>
Reviewed-on: https://review.gerrithub.io/c/439479
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: GangCao <gang.cao@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Much of this was originally applied by Darek in
6f5840d22 but then had to be reverted due to NVMe-oF
MR issues in a817ccf5. Now that the NVMe-oF MR issues
have been resolved, we can reapply these changes.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Change-Id: I58d603523901c78dbc81279078a09b2a24c091e6
Reviewed-on: https://review.gerrithub.io/436547
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Apparently this patch revealed an issue somewhere in SGL
handling in NVMf initiator which is causing our CI to fail.
Let's revert it while we work on a proper fix.
This reverts commit 6f5840d225.
This is not a full revert, some app.c changes to the usage text
were kept unchanged.
Change-Id: Iddea5c2b9df50bd12ef8f6226165883f6622ab33
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/432576
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Tested-by: Ben Walker <benjamin.walker@intel.com>
Now that we utilize DPDK dynamic memory allocation, we
no longer need to set the default pre-reserved memory size.
It'll now be 0, which implies all memory will be allocated
at runtime.
The option to pre-reserve all hugepages on the system is
now only available on BSD, so also clarify that bit in the
app usage text.
Change-Id: I5a8a1d9bf14ad6d938532d7e6254a45e4a81bb92
Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/432204
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Seth Howell <seth.howell5141@gmail.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I94a59e240744acceca138d56bd141e9aec2e6270
Signed-off-by: GangCao <gang.cao@intel.com>
Reviewed-on: https://review.gerrithub.io/429875
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Piotr Pelpliński <piotr.pelplinski@intel.com>
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>
For those with fat fingers or really bad vision... previously bdevperf
would take a bogus size and try to make it work, if you used the verify
feature this could (or would in my case) result in a data miscompare.
Change-Id: Id5d4c4130c3d3c0606d6a243d2ca278e539684e9
Signed-off-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-on: https://review.gerrithub.io/425883
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Config file pathnames have been possible on the command line
for a very long time, and all of the SPDK testing infrastructure
uses it. The default pathnames were added a very long time ago,
and now can cause weird issues like conflicting with --wait-for-rpc
when an INI config file is not passed on the command line but is
pulled in by the default pathname instead.
So remove the default pathnames.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ia914ff1c9321235f79f8cc9a054ed7f099340151
Reviewed-on: https://review.gerrithub.io/424606
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>
Change-Id: I4b2fa51608ad8504b1db6d039efa59f8659e5025
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/421695
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
