Commit 7ff0d5e6 authored by Konrad Sztyber's avatar Konrad Sztyber Committed by Tomasz Zawadzki
Browse files

accel: add driver init/fini callbacks 



This allows drivers to allocate/free any resources it requires for
operation.

Signed-off-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I57213b5c4b558908d14ae8b5dfb721328eae0f9a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/21053


Reviewed-by: default avatarJim Harris <jim.harris@samsung.com>
Reviewed-by: default avatar <eugene.kobyak@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarAleksey Marchuk <alexeymar@nvidia.com>
parent 0a4a5235

include/spdk/accel_module.h

+6 −0
Original line number Diff line number Diff line
@@ -256,6 +256,12 @@ struct spdk_accel_driver { 
	/** Name of the driver. */

	const char *name;



	/** Initializes the driver, called when accel initializes.  Optional. */

	int (*init)(void);



	/** Performs cleanup on resources allocated by the driver.  Optional. */

	void (*fini)(void);



	/**

	 * Executes a sequence of accel operations.  The driver should notify accel about each

	 * completed task using `spdk_accel_task_complete()`.  Once all tasks are completed or the

lib/accel/accel.c

+14 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ 
#include "spdk/crc32.h"

#include "spdk/util.h"

#include "spdk/hexlify.h"

#include "spdk/string.h"



/* Accelerator Framework: The following provides a top level

 * generic API for the accelerator functions defined here. Modules,
@@ -2526,6 +2527,15 @@ spdk_accel_initialize(void) 
		return rc;

	}



	if (g_accel_driver != NULL && g_accel_driver->init != NULL) {

		rc = g_accel_driver->init();

		if (rc != 0) {

			SPDK_ERRLOG("Failed to initialize driver %s: %s\n", g_accel_driver->name,

				    spdk_strerror(-rc));

			return rc;

		}

	}



	/* The module list is order by priority, with the highest priority modules being at the end

	 * of the list.  The software module should be somewhere at the beginning of the list,

	 * before all HW modules.
@@ -2711,6 +2721,10 @@ spdk_accel_module_finish(void) 
	}



	if (!g_accel_module) {

		if (g_accel_driver != NULL && g_accel_driver->fini != NULL) {

			g_accel_driver->fini();

		}



		spdk_spin_destroy(&g_keyring_spin);

		spdk_spin_destroy(&g_stats_lock);

		if (g_accel_domain) {