Commit 86619848 authored by Kozlowski Mateusz's avatar Kozlowski Mateusz Committed by Ben Walker
Browse files

Ftl: Add clean restore management path 



Adds ability for FTL to startup after clean shutdown.

Signed-off-by: default avatarKozlowski Mateusz <mateusz.kozlowski@intel.com>
Signed-off-by: default avatarArtur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: I2f1b83bb3eb1487b6665c95e76c48881e8899b16
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13364


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
parent d4b9f2c6

lib/ftl/mngt/ftl_mngt_startup.c

+71 −0
Original line number Diff line number Diff line
@@ -9,6 +9,8 @@ 


static const struct ftl_mngt_process_desc desc_startup;

static const struct ftl_mngt_process_desc desc_first_start;

static const struct ftl_mngt_process_desc desc_restore;

static const struct ftl_mngt_process_desc desc_clean_start;



static void

ftl_mngt_select_startup_mode(struct spdk_ftl_dev *dev,
@@ -16,6 +18,17 @@ ftl_mngt_select_startup_mode(struct spdk_ftl_dev *dev, 
{

	if (dev->conf.mode & SPDK_FTL_MODE_CREATE) {

		ftl_mngt_call_process(mngt, &desc_first_start);

	} else {

		ftl_mngt_call_process(mngt, &desc_restore);

	}

}



static void

ftl_mngt_select_restore_mode(struct spdk_ftl_dev *dev,

			     struct ftl_mngt_process *mngt)

{

	if (dev->sb->clean) {

		ftl_mngt_call_process(mngt, &desc_clean_start);

	} else {

		ftl_mngt_fail_step(mngt);

	}
@@ -166,6 +179,64 @@ static const struct ftl_mngt_process_desc desc_first_start = { 
	}

};



/*

 * Step utilized on loading of an FTL instance - decides on dirty/clean shutdown path.

 */

static const struct ftl_mngt_process_desc desc_restore = {

	.name = "FTL restore",

	.steps = {

		{

			.name = "Select recovery mode",

			.action = ftl_mngt_select_restore_mode,

		},

		{}

	}

};



/*

 * Loading of FTL after clean shutdown.

 */

static const struct ftl_mngt_process_desc desc_clean_start = {

	.name = "Clean startup",

	.steps = {

		{

			.name = "Restore metadata",

			.action = ftl_mngt_restore_md

		},

		{

			.name = "Initialize L2P",

			.action = ftl_mngt_init_l2p,

			.cleanup = ftl_mngt_deinit_l2p

		},

		{

			.name = "Restore L2P",

			.action = ftl_mngt_restore_l2p,

		},

		{

			.name = "Finalize band initialization",

			.action = ftl_mngt_finalize_init_bands,

		},

		{

			.name = "Start core poller",

			.action = ftl_mngt_start_core_poller,

			.cleanup = ftl_mngt_stop_core_poller

		},

		{

			.name = "Self test on startup",

			.action = ftl_mngt_self_test,

		},

		{

			.name = "Set FTL dirty state",

			.action = ftl_mngt_set_dirty,

		},

		{

			.name = "Finalize initialization",

			.action = ftl_mngt_finalize_startup,

		},

		{}

	}

};



int

ftl_mngt_call_dev_startup(struct spdk_ftl_dev *dev, ftl_mngt_completion cb, void *cb_cntx)

{