66fe5f75bb
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>
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright (c) Intel Corporation.
|
|
* 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);
|
|
void ftl_l2p_unmap(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
|
|
void ftl_l2p_restore(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
|
|
void ftl_l2p_persist(struct spdk_ftl_dev *dev, ftl_l2p_cb cb, void *cb_ctx);
|
|
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 */
|