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plugins/solidigm/solidigm-telemetry/debug-info.c
319 строк
10 KB
Sarah Ahmed
solidigm-telemetry: fix missing fallthrough annotations in debug info switch
10 авг 2026, 10:49
10 авг 2026, 10:49
7dfda7b
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// SPDX-License-Identifier: MIT /* * Copyright (c) 2025 Solidigm. * * Author: leonardo.da.cunha@solidigm.com */ #include <string.h> #include "common.h" #include "config.h" #include "data-area.h" #include "debug-info.h" #include "skht.h" #include "tracker.h" #include "uart-log.h" #include "nvme-json.h" #define DEBUG_INFO_SIGNATURE 0x54321234 /* "ST21" */ #define MAX_DEBUG_INFO_CORES 255 enum debug_info_id { DEBUG_INFO_ID_UART_LOG = 3, DEBUG_INFO_ID_TRACKER_INFO = 6, DEBUG_INFO_ID_TRACKER_BUFFER = 7, DEBUG_INFO_ID_TRACKER_CONTEXT = 8, }; int sldm_debug_info_parse(struct telemetry_log *tl, uint32_t offset, uint32_t size, struct json_object *output) { struct json_object *debug_info_blk_header_def = NULL; struct json_object *debug_info_header_def = NULL; struct json_object *debug_info_seg_header_def = NULL; struct json_object *cores_array = NULL; struct json_object *segments_array = NULL; uint64_t current_offset_bit; uint32_t current_offset_byte; int counter = 0; int err = 0; if (!tl || !tl->configuration || !output) { SOLIDIGM_LOG_WARNING("Invalid parameters for debug info parsing"); return -1; } if (offset + size > tl->log_size) { SOLIDIGM_LOG_WARNING("Debug info data exceeds log size"); return -1; } /* Get structure definitions from configuration */ if (!sldm_config_get_struct_by_key_version(tl->configuration, "DebugInfoBlkHeader_t", SKT_VER_MAJOR, SKT_VER_MINOR, &debug_info_blk_header_def)) { SOLIDIGM_LOG_WARNING("DebugInfoBlkHeader_t structure not found in config"); return -1; } if (!sldm_config_get_struct_by_key_version(tl->configuration, "DebugInfoHeader_t", SKT_VER_MAJOR, SKT_VER_MINOR, &debug_info_header_def)) { SOLIDIGM_LOG_WARNING("DebugInfoHeader_t structure not found in config"); return -1; } if (!sldm_config_get_struct_by_key_version(tl->configuration, "DebugInfoSegHeader_t", SKT_VER_MAJOR, SKT_VER_MINOR, &debug_info_seg_header_def)) { SOLIDIGM_LOG_WARNING("DebugInfoSegHeader_t structure not found in config"); return -1; } /* Parse Debug Info Block Header */ current_offset_bit = offset * 8; err = sldm_telemetry_structure_parse(tl, debug_info_blk_header_def, current_offset_bit, output, NULL); if (err) { SOLIDIGM_LOG_WARNING("Failed to parse DebugInfoBlkHeader_t"); return err; } /* Get the size of DebugInfoBlkHeader_t to move to the next structure */ struct json_object *blk_header_size_obj = NULL; if (json_object_object_get_ex(debug_info_blk_header_def, "sizeBit", &blk_header_size_obj)) { uint32_t blk_header_size_bits = json_object_get_int(blk_header_size_obj); current_offset_bit += blk_header_size_bits; } else { SOLIDIGM_LOG_WARNING("Cannot determine DebugInfoBlkHeader_t size"); return -1; } /* Create arrays for cores and segments */ cores_array = json_create_array(); segments_array = json_create_array(); json_object_add_value_array(output, "Cores", cores_array); json_object_add_value_array(output, "Segments", segments_array); /* Parse Debug Info Headers for each core */ current_offset_byte = (uint32_t)(current_offset_bit / 8); while (current_offset_byte < (offset + size) && counter < MAX_DEBUG_INFO_CORES) { uint64_t core_offset_bit = current_offset_bit; struct json_object *core_debug_info = json_create_object(); struct json_object *signature_obj = NULL; uint32_t debug_signature = 0; uint32_t total_bytes = 0; uint32_t num_segments = 0; uint32_t core_id = 0; /* Check if we have enough space for the debug info header */ if (current_offset_byte + sizeof(uint32_t) > (offset + size)) { json_free_object(core_debug_info); break; } /* Parse DebugInfoHeader_t */ err = sldm_telemetry_structure_parse(tl, debug_info_header_def, current_offset_bit, core_debug_info, NULL); if (err) { SOLIDIGM_LOG_WARNING("Failed to parse DebugInfoHeader_t for core %d", counter); json_free_object(core_debug_info); break; } /* Validate signature */ struct json_object *debug_info_header_obj = NULL; if (json_object_object_get_ex(core_debug_info, "DebugInfoHeader_t", &debug_info_header_obj) && json_object_object_get_ex(debug_info_header_obj, "nSignature", &signature_obj)) { debug_signature = json_object_get_int(signature_obj); } if (debug_signature != DEBUG_INFO_SIGNATURE) { json_free_object(core_debug_info); break; } /* Get total bytes and number of segments */ struct json_object *total_bytes_obj = NULL; struct json_object *num_segments_obj = NULL; struct json_object *core_id_obj = NULL; if (json_object_object_get_ex(debug_info_header_obj, "nTotalBytes", &total_bytes_obj)) total_bytes = json_object_get_int(total_bytes_obj); if (json_object_object_get_ex(debug_info_header_obj, "nNumSegments", &num_segments_obj)) num_segments = json_object_get_int(num_segments_obj); if (json_object_object_get_ex(debug_info_header_obj, "nCoreId", &core_id_obj)) core_id = json_object_get_int(core_id_obj); /* Add core info to the cores array */ json_object_array_add(cores_array, core_debug_info); /* Move to the position after DebugInfoHeader_t */ struct json_object *header_size_obj = NULL; if (json_object_object_get_ex(debug_info_header_def, "sizeBit", &header_size_obj)) { uint32_t header_size_bits = json_object_get_int(header_size_obj); current_offset_bit += header_size_bits; current_offset_byte = (uint32_t)(current_offset_bit / 8); } else { SOLIDIGM_LOG_WARNING("Cannot determine DebugInfoHeader_t size"); break; } /* Parse segment headers for this core */ for (uint32_t seg = 0; seg < num_segments && seg < 16; seg++) { struct json_object *tracker_info = NULL; struct json_object *debug_info_uart_log = NULL; struct json_object *segment_info = json_create_object(); char *tracker_log_name = NULL; /* Check bounds */ if (current_offset_byte >= (offset + size)) { json_free_object(segment_info); break; } /* Parse DebugInfoSegHeader_t */ err = sldm_telemetry_structure_parse(tl, debug_info_seg_header_def, current_offset_bit, segment_info, NULL); if (err) { SOLIDIGM_LOG_WARNING( "Failed to parse DebugInfoSegHeader_t for core %d, seg %d", core_id, seg); json_free_object(segment_info); break; } /* Add core and segment identifiers */ json_object_add_value_uint(segment_info, "CoreId", core_id); json_object_add_value_uint(segment_info, "SegmentIndex", seg); /* Add segment to segments array */ json_object_array_add(segments_array, segment_info); /* Move to next segment header */ struct json_object *seg_header_size_obj = NULL; if (json_object_object_get_ex(debug_info_seg_header_def, "sizeBit", &seg_header_size_obj)) { uint32_t seg_header_size_bits; seg_header_size_bits = json_object_get_int(seg_header_size_obj); current_offset_bit += seg_header_size_bits; current_offset_byte = (uint32_t)(current_offset_bit / 8); } else { SOLIDIGM_LOG_WARNING("Cannot determine DebugInfoHeader_t size"); json_free_object(segment_info); break; } // Get DebugInfoSegHeader_t size for logging struct json_object *debug_info_seg_header_obj = NULL; struct json_object *size_obj = NULL; uint32_t debug_info_seg_size = 0; if (json_object_object_get_ex(segment_info, "DebugInfoSegHeader_t", &debug_info_seg_header_obj) && json_object_object_get_ex(debug_info_seg_header_obj, "nSize", &size_obj)) { debug_info_seg_size = json_object_get_int(size_obj); } else { SOLIDIGM_LOG_WARNING("Cannot determine DebugInfoSegHeader_t size"); json_free_object(segment_info); break; } struct json_object *id_obj = NULL; uint32_t debug_info_seg_id = 0; if (json_object_object_get_ex(debug_info_seg_header_obj, "nId", &id_obj)) { debug_info_seg_id = json_object_get_int(id_obj); } else { SOLIDIGM_LOG_WARNING("Cannot determine DebugInfoSegHeader_t id"); json_free_object(segment_info); break; } switch (debug_info_seg_id) { case DEBUG_INFO_ID_UART_LOG: debug_info_uart_log = json_create_object(); if (!debug_info_uart_log) { SOLIDIGM_LOG_WARNING( "Failed to create JSON object for UART log"); json_free_object(segment_info); break; } sldm_parse_cd_uart_log(tl, current_offset_byte, debug_info_seg_size, debug_info_uart_log); json_object_object_add(segment_info, "DebugInfoUartLog", debug_info_uart_log); break; case DEBUG_INFO_ID_TRACKER_INFO: tracker_log_name = "TrackerInfo"; fallthrough; case DEBUG_INFO_ID_TRACKER_BUFFER: if (!tracker_log_name) tracker_log_name = "TrackerBuffer"; fallthrough; case DEBUG_INFO_ID_TRACKER_CONTEXT: if (!tracker_log_name) tracker_log_name = "TrackerContext"; tracker_info = json_create_object(); if (!tracker_info) { SOLIDIGM_LOG_WARNING( "Failed to create JSON object for tracker info"); json_free_object(segment_info); break; } sldm_tracker_parse(tl, current_offset_byte, debug_info_seg_size, tracker_info); // Add tracker info to segment json_object_object_add(segment_info, tracker_log_name, tracker_info); break; } current_offset_bit += debug_info_seg_size * 8; current_offset_byte = (uint32_t)(current_offset_bit / 8); } /* Move to the next core based on total_bytes */ if (total_bytes > 0) { current_offset_bit = core_offset_bit + total_bytes * 8; current_offset_byte = (uint32_t)(current_offset_bit / 8); } counter++; if (counter >= MAX_DEBUG_INFO_CORES) { SOLIDIGM_LOG_WARNING("Attempted to parse debug info for %d cores.", counter); break; } } return 0; }