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Spdk/lib/ftl/ftl_l2p_cache.h

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FTL: Add initial L2P cache logic L2P cache allows for partial storing of L2P in memory, paging in and out as necessary, lowering the total memory consumption. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: I727fec9d2f0ade4ca73e872d62a2ec10cfdb0a88 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13353 Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2022-06-15 12:35:46 +00:00
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) Intel Corporation.
* All rights reserved.
*/
#ifndef FTL_L2P_CACHE_H
#define FTL_L2P_CACHE_H
#define FTL_L2P_CACHE_MD_NAME_L1 "l2p_l1"
#define FTL_L2P_CACHE_MD_NAME_L2 "l2p_l2"
#define FTL_L2P_CACHE_MD_NAME_L2_CTX "l2p_l2_ctx"
int ftl_l2p_cache_init(struct spdk_ftl_dev *dev);
void ftl_l2p_cache_deinit(struct spdk_ftl_dev *dev);
void ftl_l2p_cache_pin(struct spdk_ftl_dev *dev, struct ftl_l2p_pin_ctx *pin_ctx);
ftl: Add L2P cache pin/unpin logic There is a set amount of pinned pages available. If exceeded they will be deferred and processed in the future, using eviction logic. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: Ic642a5870db009ccf57152dd8a4178a6b2098ee1 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13355 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Jim Harris <james.r.harris@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2022-06-01 13:21:57 +00:00
void ftl_l2p_cache_unpin(struct spdk_ftl_dev *dev, uint64_t lba, uint64_t count);
FTL: Add initial L2P cache logic L2P cache allows for partial storing of L2P in memory, paging in and out as necessary, lowering the total memory consumption. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: I727fec9d2f0ade4ca73e872d62a2ec10cfdb0a88 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13353 Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2022-06-15 12:35:46 +00:00
ftl_addr ftl_l2p_cache_get(struct spdk_ftl_dev *dev, uint64_t lba);
void ftl_l2p_cache_set(struct spdk_ftl_dev *dev, uint64_t lba, ftl_addr addr);
void ftl_l2p_cache_clear(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_cache_persist(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
FTL: Add initial L2P cache logic L2P cache allows for partial storing of L2P in memory, paging in and out as necessary, lowering the total memory consumption. Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com> Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com> Change-Id: I727fec9d2f0ade4ca73e872d62a2ec10cfdb0a88 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13353 Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2022-06-15 12:35:46 +00:00
void ftl_l2p_cache_process(struct spdk_ftl_dev *dev);
bool ftl_l2p_cache_is_halted(struct spdk_ftl_dev *dev);
void ftl_l2p_cache_halt(struct spdk_ftl_dev *dev);
#endif /* FTL_L2P_CACHE_H */
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