Commit 769984a9 authored by Artur Paszkiewicz's avatar Artur Paszkiewicz Committed by Tomasz Zawadzki
Browse files

ftl: core structure 



Signed-off-by: default avatarArtur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: default avatarKozlowski Mateusz <mateusz.kozlowski@intel.com>
Change-Id: I5360b43348c8eb7bdfcbc394bb1ac83768dec49f
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13408


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
parent 81dca288

include/spdk/ftl.h

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/*   SPDX-License-Identifier: BSD-3-Clause

 *   Copyright (c) Intel Corporation.

 *   All rights reserved.

 */



#ifndef SPDK_FTL_H

#define SPDK_FTL_H



#include "spdk/stdinc.h"

#include "spdk/uuid.h"

#include "spdk/thread.h"

#include "spdk/bdev.h"



#ifdef __cplusplus

extern "C" {

#endif



struct spdk_ftl_dev;



#ifdef __cplusplus

}

#endif



#endif /* SPDK_FTL_H */

lib/Makefile

+1 −1
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@@ -11,7 +11,7 @@ DIRS-y += bdev blob blobfs conf dma accel event json jsonrpc \ 
          log lvol rpc sock thread trace util nvme vmd nvmf scsi \

          ioat ut_mock iscsi notify init trace_parser

ifeq ($(OS),Linux)

DIRS-y += nbd

DIRS-y += nbd ftl

endif



DIRS-$(CONFIG_OCF) += env_ocf

lib/ftl/Makefile

+4 −3
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@@ -6,11 +6,12 @@ 
SPDK_ROOT_DIR := $(abspath $(CURDIR)/../..)

include $(SPDK_ROOT_DIR)/mk/spdk.common.mk



SO_VER := 4

SO_VER := 5

SO_MINOR := 0



C_SRCS = ftl_band.c ftl_core.c ftl_debug.c ftl_io.c ftl_reloc.c \

	 ftl_restore.c ftl_init.c ftl_trace.c

CFLAGS += -I.



C_SRCS = ftl_core.c



SPDK_MAP_FILE = $(abspath $(CURDIR)/spdk_ftl.map)

lib/ftl/ftl_core.c

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/*   SPDX-License-Identifier: BSD-3-Clause

 *   Copyright (c) Intel Corporation.

 *   All rights reserved.

 */



#include "spdk/likely.h"

#include "spdk/stdinc.h"

#include "spdk/nvme.h"

#include "spdk/thread.h"

#include "spdk/bdev_module.h"

#include "spdk/string.h"

#include "spdk/ftl.h"

#include "spdk/crc32.h"



#include "ftl_core.h"



SPDK_LOG_REGISTER_COMPONENT(ftl_core)

lib/ftl/ftl_core.h

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/*   SPDX-License-Identifier: BSD-3-Clause

 *   Copyright (c) Intel Corporation.

 *   All rights reserved.

 */



#ifndef FTL_CORE_H

#define FTL_CORE_H



#include "spdk/stdinc.h"

#include "spdk/uuid.h"

#include "spdk/thread.h"

#include "spdk/util.h"

#include "spdk/likely.h"

#include "spdk/queue.h"

#include "spdk/ftl.h"

#include "spdk/bdev.h"

#include "spdk/bdev_zone.h"

#include "spdk/log.h"



struct spdk_ftl_dev {

	/* Device instance */

	struct spdk_uuid		uuid;



	/* Device name */

	char				*name;



	/* Underlying device */

	struct spdk_bdev_desc		*base_bdev_desc;



	/* Cache device */

	struct spdk_bdev_desc		*cache_bdev_desc;



	/* Cache VSS metadata size */

	uint64_t			cache_md_size;



	/* Cached properties of the underlying device */

	uint64_t			num_blocks_in_band;

	uint64_t			num_zones_in_band;

	uint64_t			num_blocks_in_zone;

	bool				is_zoned;



	/* Indicates the device is fully initialized */

	bool				initialized;



	/* Indicates the device is about to be stopped */

	bool				halt;



	/* counters for poller busy, include

	   1. nv cache read/write

	   2. metadata read/write

	   3. base bdev read/write */

	uint64_t			io_activity_total;



	/* Number of operational bands */

	uint64_t			num_bands;



	/* Number of free bands */

	uint64_t			num_free;



	/* Size of the l2p table */

	uint64_t			num_lbas;



	/* Metadata size */

	uint64_t			md_size;



	/* Transfer unit size */

	uint64_t			xfer_size;



	/* Inflight IO operations */

	uint32_t			num_inflight;



	/* Thread on which the poller is running */

	struct spdk_thread		*core_thread;



	/* IO channel to the FTL device, used for internal management operations

	 * consuming FTL's external API

	 */

	struct spdk_io_channel		*ioch;



	/* Underlying device IO channel */

	struct spdk_io_channel		*base_ioch;



	/* Cache IO channel */

	struct spdk_io_channel		*cache_ioch;



	/* Read submission queue */

	TAILQ_HEAD(, ftl_io)		rd_sq;



	/* Write submission queue */

	TAILQ_HEAD(, ftl_io)		wr_sq;

};



#endif /* FTL_CORE_H */