Commit 0d8a4af8 authored by Maciej Szwed's avatar Maciej Szwed Committed by Tomasz Zawadzki
Browse files

event: Add lw_thread helper functions required for scheduler 



Signed-off-by: default avatarMaciej Szwed <maciej.szwed@intel.com>
Change-Id: Ifd21adad6116d75170d5a6ff4b6d03470644feab
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/4338


Reviewed-by: default avatarTomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarAleksey Marchuk <alexeymar@mellanox.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 2a146cd9

include/spdk_internal/event.h

+18 −0
Original line number Diff line number Diff line
@@ -248,6 +248,24 @@ static void __attribute__((constructor)) _spdk_scheduler_register_##name(void) \ 
	spdk_scheduler_list_add(scheduler); \

} \



/**

 * Set new CPU core index. Used for scheduling, assigns new CPU core index and marks it =

 * for rescheduling - does not actually change it. Can be used with SPDK_ENV_LCORE_ID_ANY

 *

 * \param thread thread to change core.

 * \param lcore new CPU core index.

 */

void _spdk_lw_thread_set_core(struct spdk_lw_thread *thread, uint32_t lcore);



/**

 * Get threads stats

 *

 * \param thread thread that stats regards to.

 * \param stats Output parameter for accumulated TSC counts while the thread was busy.

 */

void _spdk_lw_thread_get_current_stats(struct spdk_lw_thread *thread,

				       struct spdk_thread_stats *stats);



/**

 * \brief Register a new subsystem

 */

lib/event/reactor.c

+16 −4
Original line number Diff line number Diff line
@@ -738,10 +738,7 @@ _reactor_request_thread_reschedule(struct spdk_thread *thread) 


	lw_thread = spdk_thread_get_ctx(thread);



	assert(lw_thread != NULL);



	lw_thread->resched = true;

	lw_thread->lcore = SPDK_ENV_LCORE_ID_ANY;

	_spdk_lw_thread_set_core(lw_thread, SPDK_ENV_LCORE_ID_ANY);



	current_core = spdk_env_get_current_core();

	reactor = spdk_reactor_get(current_core);
@@ -942,4 +939,19 @@ reactor_interrupt_fini(struct spdk_reactor *reactor) 
	reactor->fgrp = NULL;

}



void

_spdk_lw_thread_set_core(struct spdk_lw_thread *thread, uint32_t lcore)

{

	assert(thread != NULL);

	thread->lcore = lcore;

	thread->resched = true;

}



void

_spdk_lw_thread_get_current_stats(struct spdk_lw_thread *thread, struct spdk_thread_stats *stats)

{

	assert(thread != NULL);

	*stats = thread->current_stats;

}



SPDK_LOG_REGISTER_COMPONENT(reactor)