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FTL: Recover chunk state

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Recovers the free/open/close chunk state, initializing them to any
specific lists.

Signed-off-by: Kozlowski Mateusz <mateusz.kozlowski@intel.com>
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Change-Id: Idf689f4fbcd6fc6bd986104dc89f5079c758845a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13373
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
This commit is contained in:
Kozlowski Mateusz 2022-05-30 10:59:23 +02:00 committed by Jim Harris
parent ca53f5a6df
commit d1462266ce
3 changed files with 68 additions and 0 deletions
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62
lib/ftl/ftl_nv_cache.c
View File

@ -1660,6 +1660,68 @@ ftl_chunk_close(struct ftl_nv_cache_chunk *chunk)
ftl_chunk_basic_rq_write(chunk, brq);
}
static void
restore_chunk_state_cb(struct spdk_ftl_dev *dev, struct ftl_md *md, int status)
{
struct ftl_mngt_process *mngt = md->owner.cb_ctx;
struct ftl_nv_cache *nvc = &dev->nv_cache;
struct ftl_nv_cache_chunk *chunk;
uint64_t i;
if (status) {
/* Restore error, end step */
ftl_mngt_fail_step(mngt);
return;
}
for (i = 0; i < nvc->chunk_count; i++) {
chunk = &nvc->chunks[i];
switch (chunk->md->state) {
case FTL_CHUNK_STATE_FREE:
break;
case FTL_CHUNK_STATE_OPEN:
TAILQ_REMOVE(&nvc->chunk_free_list, chunk, entry);
nvc->chunk_free_count--;
TAILQ_INSERT_TAIL(&nvc->chunk_open_list, chunk, entry);
nvc->chunk_open_count++;
/* Chunk is not empty, mark it to be recovered */
chunk->recovery = true;
break;
case FTL_CHUNK_STATE_CLOSED:
TAILQ_REMOVE(&nvc->chunk_free_list, chunk, entry);
nvc->chunk_free_count--;
TAILQ_INSERT_TAIL(&nvc->chunk_full_list, chunk, entry);
nvc->chunk_full_count++;
/* Chunk is not empty, mark it to be recovered */
chunk->recovery = true;
break;
default:
status = -EINVAL;
}
}
if (status) {
ftl_mngt_fail_step(mngt);
} else {
ftl_mngt_next_step(mngt);
}
}
void
ftl_mngt_nv_cache_restore_chunk_state(struct spdk_ftl_dev *dev, struct ftl_mngt_process *mngt)
{
struct ftl_md *md = dev->layout.md[FTL_LAYOUT_REGION_TYPE_NVC_MD];
md->owner.cb_ctx = mngt;
md->cb = restore_chunk_state_cb;
ftl_md_restore(md);
}
int
ftl_nv_cache_chunks_busy(struct ftl_nv_cache *nv_cache)
{

2
lib/ftl/ftl_nv_cache.h
View File

@ -215,6 +215,8 @@ uint64_t chunk_tail_md_offset(struct ftl_nv_cache *nv_cache);
void ftl_nv_cache_get_max_seq_id(struct ftl_nv_cache *nv_cache, uint64_t *open_seq_id,
uint64_t *close_seq_id);
void ftl_mngt_nv_cache_restore_chunk_state(struct spdk_ftl_dev *dev, struct ftl_mngt_process *mngt);
typedef int (*ftl_chunk_md_cb)(struct ftl_nv_cache_chunk *chunk, void *cntx);
struct ftl_nv_cache_chunk *ftl_nv_cache_get_chunk_from_addr(struct spdk_ftl_dev *dev,

4
lib/ftl/mngt/ftl_mngt_recovery.c
View File

@ -712,6 +712,10 @@ static const struct ftl_mngt_process_desc g_desc_recovery = {
.name = "Recover open bands P2L",
.action = ftl_mngt_recovery_open_bands_p2l
},
{
.name = "Recover chunk state",
.action = ftl_mngt_nv_cache_restore_chunk_state
},
{
.name = "Recover max seq ID",
.action = ftl_mngt_recover_seq_id