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Spdk/lib/ftl/ftl_l2p.h

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FTL: Add L2P API and flat L2P implementation Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: Ifadc8c6986164584235ee6a67799025fa7703b5d Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13315 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-07-07 17:53:08 +00:00
/* SPDX-License-Identifier: BSD-3-Clause
update Intel copyright notices per Intel policy to include file commit date using git cmd below. The policy does not apply to non-Intel (C) notices. git log --follow -C90% --format=%ad --date default <file> | tail -1 and then pull just the 4 digit year from the result. Intel copyrights were not added to files where Intel either had no contribution ot the contribution lacked substance (ie license header updates, formatting changes, etc). Contribution date used "--follow -C95%" to get the most accurate date. Note that several files in this patch didn't end the license/(c) block with a blank comment line so these were added as the vast majority of files do have this last blank line. Simply there for consistency. Signed-off-by: paul luse <paul.e.luse@intel.com> Change-Id: Id5b7ce4f658fe87132f14139ead58d6e285c04d4 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/15192 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: Mellanox Build Bot
2022-11-01 20:26:26 +00:00
* Copyright (C) 2022 Intel Corporation.
FTL: Add L2P API and flat L2P implementation Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: Ifadc8c6986164584235ee6a67799025fa7703b5d Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13315 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-07-07 17:53:08 +00:00
* All rights reserved.
*/
#ifndef FTL_L2P_H
#define FTL_L2P_H
#include "spdk/queue.h"
#include "ftl_internal.h"
struct spdk_ftl_dev;
struct ftl_nv_cache_chunk;
struct ftl_rq;
struct ftl_io;
struct ftl_l2p_pin_ctx;
typedef void (*ftl_l2p_cb)(struct spdk_ftl_dev *dev, int status, void *ctx);
typedef void (*ftl_l2p_pin_cb)(struct spdk_ftl_dev *dev, int status,
struct ftl_l2p_pin_ctx *pin_ctx);
int ftl_l2p_init(struct spdk_ftl_dev *dev);
void ftl_l2p_deinit(struct spdk_ftl_dev *dev);
struct ftl_l2p_pin_ctx {
uint64_t lba;
uint64_t count;
ftl_l2p_pin_cb cb;
void *cb_ctx;
TAILQ_ENTRY(ftl_l2p_pin_ctx) link;
};
void ftl_l2p_pin(struct spdk_ftl_dev *dev, uint64_t lba, uint64_t count, ftl_l2p_pin_cb cb,
void *cb_ctx, struct ftl_l2p_pin_ctx *pin_ctx);
void ftl_l2p_unpin(struct spdk_ftl_dev *dev, uint64_t lba, uint64_t count);
void ftl_l2p_pin_skip(struct spdk_ftl_dev *dev, ftl_l2p_pin_cb cb, void *cb_ctx,
struct ftl_l2p_pin_ctx *pin_ctx);
void ftl_l2p_set(struct spdk_ftl_dev *dev, uint64_t lba, ftl_addr addr);
ftl_addr ftl_l2p_get(struct spdk_ftl_dev *dev, uint64_t lba);
void ftl_l2p_clear(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
ftl: Unmap functionality Adds ability to send trim commands to FTL - only 4MiB aligned requests (both for offset and length of request) will be processed. During a trim operation an L2P page (containing 1024 4B entries, 1 per user LBA; which is where the 4MiB alignment comes from) will be marked as unmapped. After this point any L2P access to that page will actually set the entries themselves as FTL_ADDR_INVALID. This is done to make the trim as fast as possible, since for large requests it's probable that most of the L2P pages aren't actually in DRAM. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: I4a04ee9498a2a6939af31b06f2e45d2b7cccbf19 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13378 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-05-27 10:31:42 +00:00
void ftl_l2p_unmap(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
FTL: Add L2P API and flat L2P implementation Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: Ifadc8c6986164584235ee6a67799025fa7703b5d Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13315 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-07-07 17:53:08 +00:00
void ftl_l2p_restore(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
FTL: Persist metadata on clean shutdown Add an extra step during FTL shutdown to save all metadata. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: Idc2f77e15bbd02028548cc88355cd450175830e8 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13359 Community-CI: Mellanox Build Bot Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-06-01 09:19:04 +00:00
void ftl_l2p_persist(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
FTL: Add L2P API and flat L2P implementation Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: Ifadc8c6986164584235ee6a67799025fa7703b5d Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13315 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-07-07 17:53:08 +00:00
void ftl_l2p_process(struct spdk_ftl_dev *dev);
bool ftl_l2p_is_halted(struct spdk_ftl_dev *dev);
void ftl_l2p_halt(struct spdk_ftl_dev *dev);
void ftl_l2p_update_cache(struct spdk_ftl_dev *dev, uint64_t lba, ftl_addr new_addr,
ftl_addr old_addr);
void ftl_l2p_update_base(struct spdk_ftl_dev *dev, uint64_t lba, ftl_addr new_addr,
ftl_addr old_addr);
void ftl_l2p_pin_complete(struct spdk_ftl_dev *dev, int status, struct ftl_l2p_pin_ctx *pin_ctx);
#endif /* FTL_L2P_H */
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