ef2e614cef
This patch adds core FTL (flash translation layer) submodules. On regular SSDs the FTL is part of firmware, whereas Open Channel enables moving it to the host and allows for having full controll of data placement on the device. Main functionalities added: * logical to physical address map * read / write buffer cache * wear-leveling * bad block management Change-Id: I5c28aa277b212734bd4b1f71ae386b3d6f8c3715 Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com> Signed-off-by: Wojciech Malikowski <wojciech.malikowski@intel.com> Signed-off-by: Jakub Radtke <jakub.radtke@intel.com> Signed-off-by: Mateusz Kozlowski <mateusz.kozlowski@intel.com> Reviewed-on: https://review.gerrithub.io/c/431322 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright (c) Intel Corporation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef FTL_DEBUG_H
|
|
#define FTL_DEBUG_H
|
|
|
|
#include "ftl_ppa.h"
|
|
#include "ftl_band.h"
|
|
#include "ftl_core.h"
|
|
#include "ftl_rwb.h"
|
|
|
|
#if defined(DEBUG)
|
|
/* Debug flags - enabled when defined */
|
|
#define FTL_META_DEBUG 1
|
|
#define FTL_DUMP_STATS 1
|
|
|
|
#define ftl_debug(msg, ...) \
|
|
fprintf(stderr, msg, ## __VA_ARGS__)
|
|
#else
|
|
#define ftl_debug(msg, ...)
|
|
#endif
|
|
|
|
static inline const char *
|
|
ftl_ppa2str(struct ftl_ppa ppa, char *buf, size_t size)
|
|
{
|
|
snprintf(buf, size, "(grp: %u, pu: %u, chk: %u, lbk: %u)",
|
|
ppa.grp, ppa.pu, ppa.chk, ppa.lbk);
|
|
return buf;
|
|
}
|
|
|
|
#if defined(FTL_META_DEBUG)
|
|
bool ftl_band_validate_md(struct ftl_band *band, const uint64_t *lba_map);
|
|
void ftl_dev_dump_bands(struct spdk_ftl_dev *dev);
|
|
#else
|
|
#define ftl_band_validate_md(band, lba_map)
|
|
#define ftl_dev_dump_bands(dev)
|
|
#endif
|
|
|
|
#if defined(FTL_DUMP_STATS)
|
|
void ftl_dev_dump_stats(const struct spdk_ftl_dev *dev);
|
|
#else
|
|
#define ftl_dev_dump_stats(dev)
|
|
#endif
|
|
|
|
#endif /* FTL_DEBUG_H */
|