Commit 914007c1 authored by Konrad Sztyber's avatar Konrad Sztyber Committed by Tomasz Zawadzki
Browse files

accel: functions to iterate over tasks in a sequence 



Signed-off-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I97f011b7eaa7db7e9a9df583aff23321d60bb72f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16378


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarAleksey Marchuk <alexeymar@nvidia.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
parent 02e8b81b

include/spdk_internal/accel_module.h

+19 −0
Original line number Diff line number Diff line
@@ -236,4 +236,23 @@ bool spdk_accel_alloc_sequence_buf(struct spdk_accel_sequence *seq, void *buf, 
				   struct spdk_memory_domain *domain, void *domain_ctx,

				   spdk_accel_sequence_get_buf_cb cb_fn, void *cb_ctx);



/**

 * Returns the first task remaining to be executed in a given sequence.

 *

 * \param seq Sequence object.

 *

 * \return the first remaining task or NULL if all tasks are already completed.

 */

struct spdk_accel_task *spdk_accel_sequence_first_task(struct spdk_accel_sequence *seq);



/**

 * Returns the next remaining task that follows a given task in a sequence.

 *

 * \param task Accel task.  This task must be still oustanding (i.e. it wasn't completed through

 *             `spdk_accel_task_complete()`).

 *

 * \return the next task or NULL if `task` was the last task in a sequence.

 */

struct spdk_accel_task *spdk_accel_sequence_next_task(struct spdk_accel_task *task);



#endif

lib/accel/accel.c

+12 −0
Original line number Diff line number Diff line
@@ -1253,6 +1253,18 @@ spdk_accel_alloc_sequence_buf(struct spdk_accel_sequence *seq, void *buf, 
	return true;

}



struct spdk_accel_task *

spdk_accel_sequence_first_task(struct spdk_accel_sequence *seq)

{

	return TAILQ_FIRST(&seq->tasks);

}



struct spdk_accel_task *

spdk_accel_sequence_next_task(struct spdk_accel_task *task)

{

	return TAILQ_NEXT(task, seq_link);

}



static inline uint64_t

accel_get_iovlen(struct iovec *iovs, uint32_t iovcnt)

{

lib/accel/spdk_accel.map

+2 −0
Original line number Diff line number Diff line
@@ -43,6 +43,8 @@ 
	spdk_accel_driver_register;

	spdk_accel_get_memory_domain;

	spdk_accel_alloc_sequence_buf;

	spdk_accel_sequence_first_task;

	spdk_accel_sequence_next_task;



	local: *;

};