Remove runtime recovery in standby mode
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga
parent
76684ed8a9
commit
805ea14529
@ -24,203 +24,6 @@
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#define MAX_PASSIVE_IO_SIZE (32*MiB)
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static inline void _reset_cline(ocf_cache_t cache, ocf_cache_line_t cline)
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{
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/* The cacheline used to be dirty but it is not anymore so it needs to be
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moved to a clean lru list */
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ocf_lru_clean_cline(cache, &cache->user_parts[PARTITION_DEFAULT].part,
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cline);
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metadata_init_status_bits(cache, cline);
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ocf_lru_rm_cline(cache, cline);
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ocf_metadata_set_partition_id(cache, cline, PARTITION_FREELIST);
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ocf_metadata_set_core_info(cache, cline, OCF_CORE_MAX, ULLONG_MAX);
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}
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static inline void remove_from_freelist(ocf_cache_t cache,
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ocf_cache_line_t cline)
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{
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ocf_part_id_t lru_list;
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struct ocf_lru_list *list;
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lru_list = (cline % OCF_NUM_LRU_LISTS);
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list = ocf_lru_get_list(&cache->free, lru_list, true);
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OCF_METADATA_LRU_WR_LOCK(cline);
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ocf_lru_remove_locked(cache, list, cline);
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OCF_METADATA_LRU_WR_UNLOCK(cline);
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}
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static inline void remove_from_default(ocf_cache_t cache,
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ocf_cache_line_t cline)
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{
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ocf_part_id_t part_id = PARTITION_DEFAULT;
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ocf_part_id_t lru_list;
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struct ocf_lru_list *list;
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lru_list = (cline % OCF_NUM_LRU_LISTS);
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list = ocf_lru_get_list(&cache->user_parts[part_id].part, lru_list, false);
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OCF_METADATA_LRU_WR_LOCK(cline);
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ocf_lru_remove_locked(cache, list, cline);
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OCF_METADATA_LRU_WR_UNLOCK(cline);
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env_atomic_dec(&cache->user_parts[part_id].part.runtime->curr_size);
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}
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static void handle_previously_invalid(ocf_cache_t cache,
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ocf_cache_line_t cline)
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{
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ocf_core_id_t core_id;
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uint64_t core_line;
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uint32_t lock_idx = ocf_metadata_concurrency_next_idx(cache->mngt_queue);
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/* Pio lock provides exclusive access to the collision page thus either
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mapping or status bits can't be changed by a concurrent thread */
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ocf_metadata_get_core_info(cache, cline, &core_id, &core_line);
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if (metadata_test_dirty(cache, cline) && core_id < OCF_CORE_MAX) {
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ENV_BUG_ON(!metadata_test_valid_any(cache, cline));
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/* Moving cline from the freelist to the default partitioin */
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remove_from_freelist(cache, cline);
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ocf_hb_cline_prot_lock_wr(&cache->metadata.lock, lock_idx, core_id,
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core_line);
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OCF_METADATA_LRU_WR_LOCK(cline);
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ocf_cline_rebuild_metadata(cache, core_id, core_line, cline);
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OCF_METADATA_LRU_WR_UNLOCK(cline);
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ocf_hb_cline_prot_unlock_wr(&cache->metadata.lock, lock_idx, core_id,
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core_line);
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ocf_cleaning_init_cache_block(cache, cline);
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ocf_cleaning_set_hot_cache_line(cache, cline);
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} else {
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/* Cline stays on the freelist*/
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/* To prevent random values in the metadata fill it with the defaults */
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metadata_init_status_bits(cache, cline);
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ocf_metadata_set_core_info(cache, cline, OCF_CORE_MAX, ULLONG_MAX);
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}
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}
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static void handle_previously_valid(ocf_cache_t cache,
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ocf_cache_line_t cline)
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{
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ocf_core_id_t core_id;
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uint64_t core_line;
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uint32_t lock_idx = ocf_metadata_concurrency_next_idx(cache->mngt_queue);
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/* Pio lock provides exclusive access to the collision page thus either
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mapping or status bits can't be changed by a concurrent thread */
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ocf_metadata_get_core_info(cache, cline, &core_id, &core_line);
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if (metadata_test_dirty(cache, cline) && core_id < OCF_CORE_MAX) {
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/* Cline stays on the default partition*/
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ENV_BUG_ON(!metadata_test_valid_any(cache, cline));
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remove_from_default(cache, cline);
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ocf_hb_cline_prot_lock_wr(&cache->metadata.lock, lock_idx, core_id,
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core_line);
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OCF_METADATA_LRU_WR_LOCK(cline);
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ocf_cline_rebuild_metadata(cache, core_id, core_line, cline);
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OCF_METADATA_LRU_WR_UNLOCK(cline);
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ocf_hb_cline_prot_unlock_wr(&cache->metadata.lock, lock_idx, core_id,
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core_line);
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ocf_cleaning_set_hot_cache_line(cache, cline);
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} else {
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/* Moving cline from the default partition to the freelist */
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ocf_cleaning_purge_cache_block(cache, cline);
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_reset_cline(cache, cline);
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}
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}
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static inline void update_list_segment(ocf_cache_t cache,
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ocf_cache_line_t start, ocf_cache_line_t count)
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{
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ocf_cache_line_t cline, end;
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for (cline = start, end = start + count; cline < end; cline++) {
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ocf_part_id_t part_id;
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metadata_clear_dirty_if_invalid(cache, cline);
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metadata_clear_valid_if_clean(cache, cline);
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part_id = ocf_metadata_get_partition_id(cache, cline);
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switch (part_id) {
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case PARTITION_FREELIST:
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handle_previously_invalid(cache, cline);
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break;
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case PARTITION_DEFAULT:
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handle_previously_valid(cache, cline);
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break;
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default:
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ocf_cache_log(cache, log_crit, "Passive update: invalid "
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"part id for cacheline %u: %hu\n", cline, part_id);
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ENV_BUG();
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break;
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}
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}
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}
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static void _dec_core_stats(ocf_core_t core)
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{
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ocf_part_id_t part = PARTITION_DEFAULT;
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env_atomic *core_occupancy_counter = &core->runtime_meta->cached_clines;
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env_atomic *part_occupancy_counter =
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&core->runtime_meta->part_counters[part].cached_clines;
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env_atomic *core_dirty_counter = &core->runtime_meta->dirty_clines;
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env_atomic *part_dirty_counter =
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&core->runtime_meta->part_counters[part].dirty_clines;
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ENV_BUG_ON(env_atomic_dec_return(core_occupancy_counter) < 0);
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ENV_BUG_ON(env_atomic_dec_return(part_occupancy_counter) < 0);
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ENV_BUG_ON(env_atomic_dec_return(core_dirty_counter) < 0);
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ENV_BUG_ON(env_atomic_dec_return(part_dirty_counter) < 0);
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}
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static void cleanup_old_mapping(ocf_cache_t cache, ocf_cache_line_t start,
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ocf_cache_line_t count)
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{
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ocf_cache_line_t cline, end;
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uint32_t lock_idx = ocf_metadata_concurrency_next_idx(cache->mngt_queue);
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for (cline = start, end = start + count; cline < end; cline++) {
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ocf_core_id_t core_id;
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uint64_t core_line;
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ocf_core_t core;
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ocf_metadata_get_core_info(cache, cline, &core_id, &core_line);
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ENV_BUG_ON(core_id > OCF_CORE_ID_INVALID);
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core = ocf_cache_get_core(cache, core_id);
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if (!core)
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continue;
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ENV_BUG_ON(ocf_metadata_get_partition_id(cache, cline) !=
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PARTITION_DEFAULT);
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_dec_core_stats(core);
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ocf_hb_cline_prot_lock_wr(&cache->metadata.lock, lock_idx, core_id,
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core_line);
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ocf_metadata_remove_from_collision(cache, cline, PARTITION_DEFAULT);
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ocf_hb_cline_prot_unlock_wr(&cache->metadata.lock, lock_idx, core_id,
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core_line);
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}
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}
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static int passive_io_resume(struct ocf_request *req)
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{
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ocf_cache_t cache = req->cache;
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@ -231,7 +34,6 @@ static int passive_io_resume(struct ocf_request *req)
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uint64_t io_pages_count = BYTES_TO_PAGES(io->bytes);
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uint64_t io_end_page = io_start_page + io_pages_count - 1;
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ocf_end_io_t io_cmpl = req->master_io_req;
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ocf_cache_line_t cache_etries = ocf_metadata_collision_table_entries(cache);
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enum ocf_metadata_segment_id update_segments[] = {
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metadata_segment_sb_config,
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metadata_segment_collision,
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@ -239,7 +41,6 @@ static int passive_io_resume(struct ocf_request *req)
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int i;
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for (i = 0; i < ARRAY_SIZE(update_segments); i++) {
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ocf_cache_line_t cache_line_count, cache_line_range_start;
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enum ocf_metadata_segment_id seg = update_segments[i];
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struct ocf_metadata_raw *raw = &(ctrl->raw_desc[seg]);
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uint64_t raw_start_page = raw->ssd_pages_offset;
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@ -256,33 +57,9 @@ static int passive_io_resume(struct ocf_request *req)
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overlap_page = overlap_start - raw_start_page;
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overlap_count = overlap_end - overlap_start + 1;
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if (seg == metadata_segment_collision) {
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/* The range of cachelines with potentially updated collision
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section */
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cache_line_range_start = overlap_page * raw->entries_in_page;
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cache_line_count = raw->entries_in_page * overlap_count;
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/* The last page of collision section may contain fewer entries than
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entries_in_page */
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cache_line_count = OCF_MIN(cache_etries - cache_line_range_start,
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cache_line_count);
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/* The collision is not updated yet but the range of affected
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cachelines is already known. Remove the old mapping related info
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from the metadata */
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cleanup_old_mapping(cache, cache_line_range_start,
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cache_line_count);
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}
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ctx_data_seek(cache->owner, data, ctx_data_seek_begin,
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PAGES_TO_BYTES(overlap_start_data));
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ocf_metadata_raw_update(cache, raw, data, overlap_page, overlap_count);
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if (seg != metadata_segment_collision)
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continue;
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update_list_segment(cache, cache_line_range_start,
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cache_line_count);
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}
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ocf_pio_async_unlock(req->cache->standby.concurrency, req);
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@ -2319,8 +2319,6 @@ struct ocf_pipeline_properties _ocf_mngt_cache_standby_load_pipeline_properties
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OCF_PL_STEP(_ocf_mngt_load_superblock),
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OCF_PL_STEP(_ocf_mngt_load_metadata_recovery),
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OCF_PL_STEP(_ocf_mngt_init_cleaner),
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OCF_PL_STEP(_ocf_mngt_standby_init_structures_load),
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OCF_PL_STEP(_ocf_mngt_load_init_cleaning),
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OCF_PL_STEP(_ocf_mngt_standby_preapre_mempool),
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OCF_PL_STEP(_ocf_mngt_standby_init_pio_concurrency),
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OCF_PL_STEP(_ocf_mngt_load_rebuild_metadata),
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@ -2545,6 +2543,9 @@ struct ocf_pipeline_properties _ocf_mngt_cache_activate_pipeline_properties = {
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OCF_PL_STEP(_ocf_mngt_test_volume),
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OCF_PL_STEP(_ocf_mngt_init_promotion),
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OCF_PL_STEP(_ocf_mngt_load_add_cores),
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OCF_PL_STEP(_ocf_mngt_standby_init_structures_load),
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OCF_PL_STEP(_ocf_mngt_load_rebuild_metadata),
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OCF_PL_STEP(_ocf_mngt_load_init_cleaning),
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OCF_PL_STEP(_ocf_mngt_attach_shutdown_status),
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OCF_PL_STEP(_ocf_mngt_attach_post_init),
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OCF_PL_STEP_TERMINATOR(),
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@ -167,40 +167,3 @@ void set_cache_line_dirty(struct ocf_cache *cache, uint8_t start_bit,
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ocf_cleaning_set_hot_cache_line(cache, line);
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}
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void ocf_cline_rebuild_metadata(ocf_cache_t cache,
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ocf_core_id_t core_id, uint64_t core_line,
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ocf_cache_line_t cache_line)
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{
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ocf_core_t core = ocf_cache_get_core(cache, core_id);
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ocf_part_id_t part_id;
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ocf_cache_line_t hash_index;
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struct ocf_part_runtime *part;
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part_id = PARTITION_DEFAULT;
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part = cache->user_parts[part_id].part.runtime;
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ocf_metadata_set_partition_id(cache, cache_line, part_id);
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env_atomic_inc(&part->curr_size);
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hash_index = ocf_metadata_hash_func(cache, core_line, core_id);
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ocf_metadata_add_to_collision(cache, core_id, core_line, hash_index,
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cache_line);
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ocf_lru_init_cline(cache, cache_line);
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ocf_lru_add(cache, cache_line);
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env_atomic_inc(&core->runtime_meta->cached_clines);
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env_atomic_inc(&core->runtime_meta->
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part_counters[part_id].cached_clines);
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if (metadata_test_dirty(cache, cache_line)) {
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env_atomic_inc(&core->runtime_meta->dirty_clines);
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env_atomic_inc(&core->runtime_meta->
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part_counters[part_id].dirty_clines);
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if (!env_atomic64_read(&core->runtime_meta->dirty_since))
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env_atomic64_cmpxchg(&core->runtime_meta->dirty_since, 0,
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env_ticks_to_secs(env_get_tick_count()));
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}
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}
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@ -123,10 +123,6 @@ void set_cache_line_clean(struct ocf_cache *cache, uint8_t start_bit,
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void set_cache_line_dirty(struct ocf_cache *cache, uint8_t start_bit,
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uint8_t end_bit, struct ocf_request *req, uint32_t map_idx);
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void ocf_cline_rebuild_metadata(ocf_cache_t cache,
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ocf_core_id_t core_id, uint64_t core_line,
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ocf_cache_line_t cache_line);
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/**
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* @brief Remove cache line from cleaning policy
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*
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