LCOV - code coverage report
Current view: top level - spdk/lib/ftl/nvc - ftl_nvc_bdev_common.c (source / functions) Hit Total Coverage
Test: Combined Lines: 38 48 79.2 %
Date: 2024-12-14 19:18:32 Functions: 4 4 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 16 180 8.9 %

           Branch data     Line data    Source code
       1                 :            : /*   SPDX-License-Identifier: BSD-3-Clause
       2                 :            :  *   Copyright 2023 Solidigm All Rights Reserved
       3                 :            :  */
       4                 :            : 
       5                 :            : #include "ftl_nvc_bdev_common.h"
       6                 :            : #include "ftl_nvc_dev.h"
       7                 :            : #include "ftl_core.h"
       8                 :            : #include "ftl_layout.h"
       9                 :            : #include "utils/ftl_layout_tracker_bdev.h"
      10                 :            : #include "mngt/ftl_mngt.h"
      11                 :            : 
      12                 :            : bool
      13                 :        275 : ftl_nvc_bdev_common_is_chunk_active(struct spdk_ftl_dev *dev, uint64_t chunk_offset)
      14                 :            : {
      15                 :        275 :         const struct ftl_layout_tracker_bdev_region_props *reg_free = ftl_layout_tracker_bdev_insert_region(
      16   [ #  #  #  # ]:          0 :                                 dev->nvc_layout_tracker, FTL_LAYOUT_REGION_TYPE_INVALID, 0, chunk_offset,
      17   [ #  #  #  #  :          0 :                                 dev->layout.nvc.chunk_data_blocks);
             #  #  #  # ]
      18                 :            : 
      19   [ +  +  -  +  :        275 :         assert(!reg_free || reg_free->type == FTL_LAYOUT_REGION_TYPE_FREE);
          #  #  #  #  #  
                      # ]
      20                 :        275 :         return reg_free != NULL;
      21                 :            : }
      22                 :            : 
      23                 :            : static void
      24                 :        105 : md_region_setup(struct spdk_ftl_dev *dev, enum ftl_layout_region_type reg_type,
      25                 :            :                 struct ftl_layout_region *region)
      26                 :            : {
      27   [ -  +  #  # ]:        105 :         assert(region);
      28   [ #  #  #  # ]:        105 :         region->type = reg_type;
      29   [ #  #  #  # ]:        105 :         region->mirror_type = FTL_LAYOUT_REGION_TYPE_INVALID;
      30   [ #  #  #  # ]:        105 :         region->name = ftl_md_region_name(reg_type);
      31                 :            : 
      32   [ #  #  #  #  :        105 :         region->bdev_desc = dev->nv_cache.bdev_desc;
          #  #  #  #  #  
                      # ]
      33   [ #  #  #  #  :        105 :         region->ioch = dev->nv_cache.cache_ioch;
          #  #  #  #  #  
                      # ]
      34   [ #  #  #  #  :        105 :         region->vss_blksz = dev->nv_cache.md_size;
          #  #  #  #  #  
                      # ]
      35                 :        105 : }
      36                 :            : 
      37                 :            : int
      38                 :        105 : ftl_nvc_bdev_common_region_create(struct spdk_ftl_dev *dev, enum ftl_layout_region_type reg_type,
      39                 :            :                                   uint32_t reg_version, size_t reg_blks)
      40                 :            : {
      41                 :            :         const struct ftl_layout_tracker_bdev_region_props *reg_props;
      42                 :            : 
      43   [ -  +  #  # ]:        105 :         assert(reg_type < FTL_LAYOUT_REGION_TYPE_MAX);
      44                 :        105 :         reg_blks = ftl_md_region_align_blocks(dev, reg_blks);
      45                 :            : 
      46   [ #  #  #  # ]:        105 :         reg_props = ftl_layout_tracker_bdev_add_region(dev->nvc_layout_tracker, reg_type, reg_version,
      47                 :          0 :                         reg_blks, 0);
      48         [ -  + ]:        105 :         if (!reg_props) {
      49                 :          0 :                 return -1;
      50                 :            :         }
      51   [ -  +  #  #  :        105 :         assert(reg_props->type == reg_type);
             #  #  #  # ]
      52   [ -  +  #  #  :        105 :         assert(reg_props->ver == reg_version);
             #  #  #  # ]
      53   [ -  +  #  #  :        105 :         assert(reg_props->blk_sz == reg_blks);
             #  #  #  # ]
      54   [ -  +  #  #  :        105 :         assert(reg_props->blk_offs + reg_blks <= dev->layout.nvc.total_blocks);
          #  #  #  #  #  
          #  #  #  #  #  
                   #  # ]
      55                 :        105 :         return 0;
      56                 :          0 : }
      57                 :            : 
      58                 :            : int
      59                 :        105 : ftl_nvc_bdev_common_region_open(struct spdk_ftl_dev *dev, enum ftl_layout_region_type reg_type,
      60                 :            :                                 uint32_t reg_version,
      61                 :            :                                 size_t entry_size, size_t entry_count, struct ftl_layout_region *region)
      62                 :            : {
      63                 :        105 :         const struct ftl_layout_tracker_bdev_region_props *reg_search_ctx = NULL;
      64                 :        105 :         uint64_t reg_blks = ftl_md_region_blocks(dev, entry_size * entry_count);
      65                 :            : 
      66   [ +  -  #  # ]:        105 :         assert(reg_type < FTL_LAYOUT_REGION_TYPE_MAX);
      67                 :            : 
      68                 :          0 :         while (true) {
      69   [ #  #  #  # ]:        105 :                 ftl_layout_tracker_bdev_find_next_region(dev->nvc_layout_tracker, reg_type, &reg_search_ctx);
      70   [ +  -  -  +  :        105 :                 if (!reg_search_ctx || reg_search_ctx->ver == reg_version) {
             #  #  #  # ]
      71                 :          0 :                         break;
      72                 :            :                 }
      73                 :            :         }
      74                 :            : 
      75   [ +  -  -  +  :        105 :         if (!reg_search_ctx || reg_search_ctx->blk_sz < reg_blks) {
             #  #  #  # ]
      76                 :            :                 /* Region not found or insufficient space */
      77                 :          0 :                 return -1;
      78                 :            :         }
      79                 :            : 
      80         [ -  + ]:        105 :         if (!region) {
      81                 :          0 :                 return 0;
      82                 :            :         }
      83                 :            : 
      84                 :        105 :         md_region_setup(dev, reg_type, region);
      85                 :            : 
      86   [ #  #  #  #  :        105 :         region->entry_size = entry_size / FTL_BLOCK_SIZE;
                   #  # ]
      87   [ #  #  #  # ]:        105 :         region->num_entries = entry_count;
      88                 :            : 
      89   [ #  #  #  #  :        105 :         region->current.version = reg_version;
                   #  # ]
      90   [ #  #  #  #  :        105 :         region->current.offset = reg_search_ctx->blk_offs;
          #  #  #  #  #  
                      # ]
      91   [ #  #  #  #  :        105 :         region->current.blocks = reg_search_ctx->blk_sz;
          #  #  #  #  #  
                      # ]
      92                 :            : 
      93                 :        105 :         return 0;
      94                 :          0 : }

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