diff options
Diffstat (limited to 'src/spdk/lib/ftl/ftl_debug.c')
| -rw-r--r-- | src/spdk/lib/ftl/ftl_debug.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/src/spdk/lib/ftl/ftl_debug.c b/src/spdk/lib/ftl/ftl_debug.c new file mode 100644 index 000000000..9fbb43810 --- /dev/null +++ b/src/spdk/lib/ftl/ftl_debug.c @@ -0,0 +1,169 @@ +/*- + * 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. + */ + +#include "spdk_internal/log.h" +#include "spdk/ftl.h" +#include "ftl_debug.h" +#include "ftl_band.h" + +#if defined(DEBUG) +#if defined(FTL_META_DEBUG) + +static const char *ftl_band_state_str[] = { + "free", + "prep", + "opening", + "open", + "full", + "closing", + "closed", + "max" +}; + +bool +ftl_band_validate_md(struct ftl_band *band) +{ + struct spdk_ftl_dev *dev = band->dev; + struct ftl_lba_map *lba_map = &band->lba_map; + struct ftl_addr addr_md, addr_l2p; + size_t i, size, seg_off; + bool valid = true; + + size = ftl_get_num_blocks_in_band(dev); + + pthread_spin_lock(&lba_map->lock); + for (i = 0; i < size; ++i) { + if (!spdk_bit_array_get(lba_map->vld, i)) { + continue; + } + + seg_off = i / FTL_NUM_LBA_IN_BLOCK; + if (lba_map->segments[seg_off] != FTL_LBA_MAP_SEG_CACHED) { + continue; + } + + addr_md = ftl_band_addr_from_block_offset(band, i); + addr_l2p = ftl_l2p_get(dev, lba_map->map[i]); + + if (addr_l2p.cached) { + continue; + } + + if (addr_l2p.offset != addr_md.offset) { + valid = false; + break; + } + + } + + pthread_spin_unlock(&lba_map->lock); + + return valid; +} + +void +ftl_dev_dump_bands(struct spdk_ftl_dev *dev) +{ + size_t i, total = 0; + + if (!dev->bands) { + return; + } + + ftl_debug("Bands validity:\n"); + for (i = 0; i < ftl_get_num_bands(dev); ++i) { + if (dev->bands[i].state == FTL_BAND_STATE_FREE && + dev->bands[i].wr_cnt == 0) { + continue; + } + + if (!dev->bands[i].num_zones) { + ftl_debug(" Band %3zu: all zones are offline\n", i + 1); + continue; + } + + total += dev->bands[i].lba_map.num_vld; + ftl_debug(" Band %3zu: %8zu / %zu \tnum_zones: %zu \twr_cnt: %"PRIu64"\tmerit:" + "%10.3f\tstate: %s\n", + i + 1, dev->bands[i].lba_map.num_vld, + ftl_band_user_blocks(&dev->bands[i]), + dev->bands[i].num_zones, + dev->bands[i].wr_cnt, + dev->bands[i].merit, + ftl_band_state_str[dev->bands[i].state]); + } +} + +#endif /* defined(FTL_META_DEBUG) */ + +#if defined(FTL_DUMP_STATS) + +void +ftl_dev_dump_stats(const struct spdk_ftl_dev *dev) +{ + size_t i, total = 0; + char uuid[SPDK_UUID_STRING_LEN]; + double waf; + const char *limits[] = { + [SPDK_FTL_LIMIT_CRIT] = "crit", + [SPDK_FTL_LIMIT_HIGH] = "high", + [SPDK_FTL_LIMIT_LOW] = "low", + [SPDK_FTL_LIMIT_START] = "start" + }; + + if (!dev->bands) { + return; + } + + /* Count the number of valid LBAs */ + for (i = 0; i < ftl_get_num_bands(dev); ++i) { + total += dev->bands[i].lba_map.num_vld; + } + + waf = (double)dev->stats.write_total / (double)dev->stats.write_user; + + spdk_uuid_fmt_lower(uuid, sizeof(uuid), &dev->uuid); + ftl_debug("\n"); + ftl_debug("device UUID: %s\n", uuid); + ftl_debug("total valid LBAs: %zu\n", total); + ftl_debug("total writes: %"PRIu64"\n", dev->stats.write_total); + ftl_debug("user writes: %"PRIu64"\n", dev->stats.write_user); + ftl_debug("WAF: %.4lf\n", waf); + ftl_debug("limits:\n"); + for (i = 0; i < SPDK_FTL_LIMIT_MAX; ++i) { + ftl_debug(" %5s: %"PRIu64"\n", limits[i], dev->stats.limits[i]); + } +} + +#endif /* defined(FTL_DUMP_STATS) */ +#endif /* defined(DEBUG) */ |