From c358fd8e4ce5f9786a0e8a2ae026327709d6d8af Mon Sep 17 00:00:00 2001 From: aviramd Date: Tue, 15 Oct 2024 10:58:19 +0300 Subject: [PATCH 1/8] Add SAI generate debug dump HLD --- .../SAI_generate_debug_dump.md | 115 ++++++++++++++++++ .../images/generate_dubug_dump_file.png | Bin 0 -> 41798 bytes 2 files changed, 115 insertions(+) create mode 100755 doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md create mode 100644 doc/SAI_generate_debug_dump/images/generate_dubug_dump_file.png diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md new file mode 100755 index 0000000000..8f21600caf --- /dev/null +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -0,0 +1,115 @@ +# SYNCD Optimization for SONiC + +## Table of Contents + +- [SYNCD Optimization for SONiC](#syncd-optimization-for-sonic) + - [Table of Contents](#table-of-contents) + - [Revision](#revision) + - [Scope](#scope) + - [Terminology](#terminology) + - [Overview](#overview) + - [Requirements](#requirements) + - [Architecture Design](#architecture-design) + - [Implementation](#implementation) + - [sonic-utilities](#sonic-utilities) + - [SWSS](#SWSS) + - [SWSS-common](#SWSS-common) + - [SAI-Redis](#SAI-Redis) + - [SAI API](#sai-api) + - [YANG model changes](#yang-model-changes) + - [CLI](#cli) + - [Warmboot and Fastboot Design Impact] + - [Testing Requirements/Design] + - [Unit Test cases] + - [System Test cases] + +### Revision + +| Rev | Date | Author | Change Description | +| :-: | :------: | :-----------------------: | ------------------ | +| 0.1 | 10/15/24 | Aviram Dali (**Marvell**) | Initial Draft | + +### Scope + +The scope of this document is to design the handling of taking a SAI dump during show techsupport call + +### Terminology + +| Term | Definition | +| --------- | --------------------------------------- | +| ASIC | Application Specific Integrated Circuit | +| SYNCD | ASIC Synchronization Service | +| SAI | Switch Abstraction Interface | +| API | Application Programmable Interface | +| SWSS | Switch State Service | + + +### Overview +SAI dump file usually includes, SDK info and configuration , SAI stats, capture of SAI lower layer states like registers vales etc... +Currently, the SAI dump file is generated only during SAI failures by executing a dedicated executable named "saidump", which linkage with the SAI lib during initialization it creates a new switch in redundant mode. This new feature allows users to generate a SAI debug dump file using command such as show tech-support not necessarily during failure, and the dump file will be generated directly from the syncd process. + + +### Requirements +Each vendor can add to its specific implantation part of the `show techsupport` a simple call to a new API to generate the SAI debug dump file. + +### Architecture Design + +1. A user command, such as `show techsupport` triggers the `generate_sai_dump` bash script, which writes the file name to the STATE DB. +2. A new orchestration agent, `DbgGenDumpOrch`, is triggered to handle the request. +3. `DbgGenDumpOrch` writes the file name to the ASIC DB and sets a new operation `REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMP` for syncd. +4. Syncd calls the global SAI API `dbgGenerateDump` to generate the debug dump file, which is saved in syncd's file system. +5. Syncd sends a reply back to `DbgGenDumpOrch`. +6. `DbgGenDumpOrch` analyzes the response. +7. `DbgGenDumpOrch` updates the result in the STATE DB. +8. The user command retrieves the result. +9. The debug dump file is pulled on success. + +The below diagram explains the sequence when a SAI failure happens +![](/images/generate_debug_dump_file.JPG) + + +### Implementation + +#### sonic-utilities +Add a new script to the Debian file system named `gen_sai_dbg_dump_lib.sh`, which includes the `generate_sai_dump` API. This function takes the desired file name as an argument and initiates the generation of a SAI debug dump file by performing the following steps: + +- Set the file name in the STATE DB to trigger the dump generation. +- Poll the STATE DB for the result with timeout of 10 seconds. +- Delete the relevant entries from the STATE DB after triggering the dump file. +- Ensure that the generated file exists. + + +**Show Techsupport** +- Introduced a new generic API, `generate_sai_dbg_dump_file`, in `generate_dump.sh` (invoked by the "show techsupport" command) to create a debug dump file. This change allows each vendor to call this API in their vendor-specific implementation +- After the file is generated, it is moved into the techsupport folder. + +#### SWSS +- A new orchestration agent, `DbgGenDumpOrch`, has been introduced, which is triggered by updates in the STATE DB. +- It updates syncd by writing to the ASIC DB and waits for a response. Once received, it writes the result back to the STATE DB, allowing the calling application to retrieve the file. + +#### SWSS-common +- add new tables name + +#### SAI-Redis +- Implemented a new global API, `dbgGenerateDump`, in the `SaiInterface` class, ensuring that all derived classes provide the corresponding implementation, including the vendor SAI class to call the global API `sai_dbg_generate_dump`. +- Added a new syncd operation, `REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMP`, which invokes the SAI API to generate the debug dump file. + +#### SAI API +There are currently no new SAI APIs required for this feature. + +#### YANG model changes +No Changes. + +#### CLI +No changes. + +### Warmboot and Fastboot Design Impact +There is no impact on warmboot or fastboot + +### Testing Requirements/Design + +#### Unit Test cases + +#### System Test cases +Verify if the dump in techsupport contains the SAI failure dump is collected. + diff --git 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.../images/generate_dubug_dump_file.png | Bin 41798 -> 0 bytes 3 files changed, 199 insertions(+), 55 deletions(-) create mode 100644 doc/SAI_generate_debug_dump/images/generate_debug_dump_file.png delete mode 100644 doc/SAI_generate_debug_dump/images/generate_dubug_dump_file.png diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md index 8f21600caf..0813b1a706 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -1,8 +1,8 @@ -# SYNCD Optimization for SONiC +# Generate SAI Debug Dump ## Table of Contents -- [SYNCD Optimization for SONiC](#syncd-optimization-for-sonic) +- [Generate SAI Debug Dump](#Generate-SAI-Debug-Dump) - [Table of Contents](#table-of-contents) - [Revision](#revision) - [Scope](#scope) @@ -11,88 +11,230 @@ - [Requirements](#requirements) - [Architecture Design](#architecture-design) - [Implementation](#implementation) - - [sonic-utilities](#sonic-utilities) - - [SWSS](#SWSS) - - [SWSS-common](#SWSS-common) - - [SAI-Redis](#SAI-Redis) - - [SAI API](#sai-api) - - [YANG model changes](#yang-model-changes) - - [CLI](#cli) - - [Warmboot and Fastboot Design Impact] - - [Testing Requirements/Design] - - [Unit Test cases] - - [System Test cases] + - [generate_sai_dump bash script](#generate_sai_dump-bash-script) + - [show techsupport](#show-techsupport) + - [gen_sai_dbg_dump.sh](#gen_sai_dbg_dump.sh) + - [DbgGenDump orchestration](#DbgGenDump-orchestration) + - [SAI global API sai_dbg_generate_dump](#SAI-global-API-sai-dbg_generate_dump) + - [syncd extended operation](#syncd-extended-operation) + - [YANG model changes](#yang-model-changes) + - [CLI](#cli) + - [Warmboot and Fastboot Design Impact](#Warmboot-and-Fastboot-Design-Impac) + - [Testing Requirements/Design](#Testing-Requirements/Design) + - [Unit Test cases](#Unit-Test-cases) + - [System Test cases](#System-Test-cases) ### Revision | Rev | Date | Author | Change Description | | :-: | :------: | :-----------------------: | ------------------ | | 0.1 | 10/15/24 | Aviram Dali (**Marvell**) | Initial Draft | - ### Scope -The scope of this document is to design the handling of taking a SAI dump during show techsupport call +The scope of this document is to design the handling of generating a SAI debug dump file by user command , specifically for `show techsupport` command. ### Terminology -| Term | Definition | -| --------- | --------------------------------------- | -| ASIC | Application Specific Integrated Circuit | -| SYNCD | ASIC Synchronization Service | -| SAI | Switch Abstraction Interface | -| API | Application Programmable Interface | -| SWSS | Switch State Service | - - +| Term | Definition | +| ----- | --------------------------------------- | +| ASIC | Application Specific Integrated Circuit | +| SYNCD | ASIC Synchronization Service | +| SAI | Switch Abstraction Interface | +| API | Application Programmable Interface | +| SWSS | Switch State Service | ### Overview -SAI dump file usually includes, SDK info and configuration , SAI stats, capture of SAI lower layer states like registers vales etc... -Currently, the SAI dump file is generated only during SAI failures by executing a dedicated executable named "saidump", which linkage with the SAI lib during initialization it creates a new switch in redundant mode. This new feature allows users to generate a SAI debug dump file using command such as show tech-support not necessarily during failure, and the dump file will be generated directly from the syncd process. +SAI dump file usually includes SDK info and configuration , SAI stats, capture of SAI lower layer states like registers vales etc... +Currently, the SAI dump file is generated only during SAI failures by executing a dedicated executable named "saisdkdump" (which linkage with the SAI lib during initialization and creates a new switch in redundant mode) + +This new feature allows users to generate a SAI debug dump file using `show tech-support` command, not necessarily during failure. ### Requirements -Each vendor can add to its specific implantation part of the `show techsupport` a simple call to a new API to generate the SAI debug dump file. + ++ Add infrastructure to generate a SAI debug dump file upon user request ++ generate a SAI debug dump file from 'show techsupport' command. ++ Generate a SAI debug dump file within the context of Syncd. ++ Maintain the existing mechanism for generating the SAI debug dump file on failure. ### Architecture Design -1. A user command, such as `show techsupport` triggers the `generate_sai_dump` bash script, which writes the file name to the STATE DB. +1. A user command, such as `show techsupport` triggers the `generate_sai_dump`, and creates a new table with the dump file name to create in the APPL DB. 2. A new orchestration agent, `DbgGenDumpOrch`, is triggered to handle the request. 3. `DbgGenDumpOrch` writes the file name to the ASIC DB and sets a new operation `REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMP` for syncd. 4. Syncd calls the global SAI API `dbgGenerateDump` to generate the debug dump file, which is saved in syncd's file system. 5. Syncd sends a reply back to `DbgGenDumpOrch`. 6. `DbgGenDumpOrch` analyzes the response. -7. `DbgGenDumpOrch` updates the result in the STATE DB. +7. `DbgGenDumpOrch` updates the result in the APPL DB. 8. The user command retrieves the result. 9. The debug dump file is pulled on success. -The below diagram explains the sequence when a SAI failure happens -![](/images/generate_debug_dump_file.JPG) - +The below diagram explains the generate debug dump file flow -### Implementation - -#### sonic-utilities -Add a new script to the Debian file system named `gen_sai_dbg_dump_lib.sh`, which includes the `generate_sai_dump` API. This function takes the desired file name as an argument and initiates the generation of a SAI debug dump file by performing the following steps: - -- Set the file name in the STATE DB to trigger the dump generation. -- Poll the STATE DB for the result with timeout of 10 seconds. -- Delete the relevant entries from the STATE DB after triggering the dump file. -- Ensure that the generated file exists. +![Architecture Design](images/generate_debug_dump_file.png) -**Show Techsupport** -- Introduced a new generic API, `generate_sai_dbg_dump_file`, in `generate_dump.sh` (invoked by the "show techsupport" command) to create a debug dump file. This change allows each vendor to call this API in their vendor-specific implementation -- After the file is generated, it is moved into the techsupport folder. - -#### SWSS -- A new orchestration agent, `DbgGenDumpOrch`, has been introduced, which is triggered by updates in the STATE DB. -- It updates syncd by writing to the ASIC DB and waits for a response. Once received, it writes the result back to the STATE DB, allowing the calling application to retrieve the file. - -#### SWSS-common -- add new tables name +### Implementation -#### SAI-Redis -- Implemented a new global API, `dbgGenerateDump`, in the `SaiInterface` class, ensuring that all derived classes provide the corresponding implementation, including the vendor SAI class to call the global API `sai_dbg_generate_dump`. -- Added a new syncd operation, `REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMP`, which invokes the SAI API to generate the debug dump file. +#### generate_sai_dump bash script +Introduced a new script `/usr/local/bin/gen_sai_dbg_dump_lib.sh` that can be invoked from `show techsupport` or any other command + +``` +############################################################################### +# generate_sai_dump +# +# Description: +#  This function +# it ensures that the `syncd` container is running before initiating the dump. +# triggers the generation of a SAI debug dump file through Redis APPL DB. +# it waits for the file by Polling (with timeout) the APPL DB for the result. +# it removes the table from the DB when done. +# +# Arguments: +#  $1 - Filename for the SAI debug dump file. +#  $2 - Optional timeout for file readiness (default: 10 seconds). +# +# Returns: +#  0 - On success +#  1 - On failure +############################################################################### +generate_sai_dump() { + +} +``` + +#### APPL DB +Introduced a new Tables in APPL DB : + +``` +key = DBG_GEN_DUMP_TABLE:DUMP ; Unique identifier for gen dump file. +;field = value +file_name = STRING ; full path file to save the dump file. +``` + +Example: +``` +redis-cli -n 0 HGETALL "DBG_GEN_DUMP_TABLE:DUMP" +1) "file" +2) "/var/log/sai_dump_file.log" +``` + +wait for the dump generation result example: +``` +key = DBG_GEN_DUMP_STAUS_TABLE:DUMP ; Unique identifier for gen dump file result +;field = value +status = SAI_STATUS ; result status of file dump generation +``` + +Example: +``` +redis-cli -n 0 HGETALL "DBG_GEN_DUMP_STATUS_TABLE:DUMP" +1) "status" +2) "0" +``` + + +#### show techsupport +Introduced a new generic API, `generate_sai_dbg_dump_file`, in `generate_dump.sh` (invoked by the `show techsupport` command) to create a debug dump file: + +``` + +# generate_sai_dbg_dump_file +# +# Description: +# This function triggers the generation of a SAI debug dump file and saves the +# dumped file in the show techsupport output directory. +# +# Globals: +#  None +# +# Arguments: +#  $1 - (required) The file name (without path) the SAI debug dump will be saved +# under this name in the show techsupport output directory. +# +# Returns: +#  0 - On success +#  1 - On failure +############################################################################### +generate_sai_dbg_dump_file(){ +... +} +``` + +usage: + +``` +generate_sai_dbg_dump_file "sai_sdk_dump_$(date +"%m_%d_%Y_%I_%M_%p")" +``` + +#### gen_sai_dbg_dump.sh +Introduced a new script `/usr/local/bin/gen_sai_dbg_dump.sh` that can be invoked from the CLI to generate the dump file directly under the given name (without calling `show techsupport` command) + +``` +/usr/local/bin/gen_sai_dbg_dump.sh -f /tmp/my_dump_file.log +``` +#### DbgGenDump orchestration +- A new orchestration agent, `DbgGenDumpOrch`, has been introduced, which is triggered by updates in the APPL DB. + +- It updates syncd by writing to the ASIC DB and waits for a response. Once received, it writes the result back to the APPL DB, allowing the calling application to retrieve the file. + +#### ASIC DB +Introduced a new Tables in ASIC DB: + +``` +key = DBG_GEN_DUMP:DUMP ; Unique identifier for gen dump file result +;field = value +file_name = STRING ; full path file to save the dump file. +``` + +Example: + +``` +redis-cli -n 1 HGETALL "DBG_GEN_DUMP:DUMP" +1) "DBG_GENERATE_DUMP" +2) "/var/log/sai_dump_file.log" +``` + +#### SONIC support global API sai_dbg_generate_dump +`sai_dbg_generate_dump` is already supported in SAI. Similar to other global API that supported in Sonic, add support to the global API `sai_dbg_generate_dump` to the `SaiInterface` class and ensuring that all derived classes provide the corresponding implementation + +``` +    class SaiInterface{ +     ... +            virtual sai_status_t dbgGenerateDump( +                    _In_ const char *dump_file_name) = 0; +     ...           +    } +``` +  +#### syncd extended operation + +Similar to other global API that supported in Sonic, add new operation to the syncd to support SAI debug generate dump + +``` +sai_status_t Syncd::processSingleEvent( +        _In_ const swss::KeyOpFieldsValuesTuple &kco) +{ + ... + +    if (op == REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMP) +        return processDbgGenerateDump(kco); +``` + + +``` +sai_status_t Syncd::processDbgGenerateDump( +        _In_ const swss::KeyOpFieldsValuesTuple &kco) +{ + ... + //call SAI dbgGenerateDump API +    sai_status_t status = m_vendorSai->dbgGenerateDump(file_path); + ... + //update ASIC DB with the result +    m_selectableChannel->set(sai_serialize_status(status), {} , REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMPRESPONSE); +    +    return status; +} +``` #### SAI API There are currently no new SAI APIs required for this feature. @@ -109,7 +251,9 @@ There is no impact on warmboot or fastboot ### Testing Requirements/Design #### Unit Test cases +execute dump file and make sure it exists +/usr/local/bin/gen_sai_dbg_dump.sh -f /tmp/my_dump_file.log #### System Test cases -Verify if the dump in techsupport contains the SAI failure dump is collected. +Verify if the dump in `show techsupport` contains the SAI dump file. diff --git a/doc/SAI_generate_debug_dump/images/generate_debug_dump_file.png b/doc/SAI_generate_debug_dump/images/generate_debug_dump_file.png new file mode 100644 index 0000000000000000000000000000000000000000..3560e28156f40cb557cda758d8a64763507999b5 GIT binary patch literal 41829 zcmeEv1z1(vy7mGQmm=LE0+1KvKF9P#P&kT3RUqkr0rUl1}OR z=Mvbu+e1Ad!W8k)ll 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0813b1a706..34e8b08b48 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -13,7 +13,6 @@ - [Implementation](#implementation) - [generate_sai_dump bash script](#generate_sai_dump-bash-script) - [show techsupport](#show-techsupport) - - [gen_sai_dbg_dump.sh](#gen_sai_dbg_dump.sh) - [DbgGenDump orchestration](#DbgGenDump-orchestration) - [SAI global API sai_dbg_generate_dump](#SAI-global-API-sai-dbg_generate_dump) - [syncd extended operation](#syncd-extended-operation) @@ -76,7 +75,7 @@ The below diagram explains the generate debug dump file flow ### Implementation #### generate_sai_dump bash script -Introduced a new script `/usr/local/bin/gen_sai_dbg_dump_lib.sh` that can be invoked from `show techsupport` or any other command +Introduced a new script `/usr/local/bin/gen_sai_dbg_dump.sh` ``` ############################################################################### @@ -102,37 +101,11 @@ generate_sai_dump() { } ``` -#### APPL DB -Introduced a new Tables in APPL DB : - -``` -key = DBG_GEN_DUMP_TABLE:DUMP ; Unique identifier for gen dump file. -;field = value -file_name = STRING ; full path file to save the dump file. -``` - -Example: -``` -redis-cli -n 0 HGETALL "DBG_GEN_DUMP_TABLE:DUMP" -1) "file" -2) "/var/log/sai_dump_file.log" -``` - -wait for the dump generation result example: -``` -key = DBG_GEN_DUMP_STAUS_TABLE:DUMP ; Unique identifier for gen dump file result -;field = value -status = SAI_STATUS ; result status of file dump generation + The script also can be invoked from the CLI to generate the dump file directly under the given name (without calling `show techsupport` command): ``` - -Example: -``` -redis-cli -n 0 HGETALL "DBG_GEN_DUMP_STATUS_TABLE:DUMP" -1) "status" -2) "0" +/usr/local/bin/gen_sai_dbg_dump.sh -f /tmp/my_dump_file.log ``` - #### show techsupport Introduced a new generic API, `generate_sai_dbg_dump_file`, in `generate_dump.sh` (invoked by the `show techsupport` command) to create a debug dump file: @@ -166,18 +139,42 @@ usage: generate_sai_dbg_dump_file "sai_sdk_dump_$(date +"%m_%d_%Y_%I_%M_%p")" ``` -#### gen_sai_dbg_dump.sh -Introduced a new script `/usr/local/bin/gen_sai_dbg_dump.sh` that can be invoked from the CLI to generate the dump file directly under the given name (without calling `show techsupport` command) - -``` -/usr/local/bin/gen_sai_dbg_dump.sh -f /tmp/my_dump_file.log -``` #### DbgGenDump orchestration - A new orchestration agent, `DbgGenDumpOrch`, has been introduced, which is triggered by updates in the APPL DB. - It updates syncd by writing to the ASIC DB and waits for a response. Once received, it writes the result back to the APPL DB, allowing the calling application to retrieve the file. -#### ASIC DB +#### DB Enhancements + +Introduced a new Tables in APPL DB : + +``` +key = DBG_GEN_DUMP_TABLE:DUMP ; Unique identifier for gen dump file. +;field = value +file_name = STRING ; full path file to save the dump file. +``` + +Example: +``` +redis-cli -n 0 HGETALL "DBG_GEN_DUMP_TABLE:DUMP" +1) "file" +2) "/var/log/sai_dump_file.log" +``` + +wait for the dump generation result example: +``` +key = DBG_GEN_DUMP_STATUS_TABLE:DUMP ; Unique identifier for gen dump file result +;field = value +status = SAI_STATUS ; result status of file dump generation +``` + +Example: +``` +redis-cli -n 0 HGETALL "DBG_GEN_DUMP_STATUS_TABLE:DUMP" +1) "status" +2) "0" +``` + Introduced a new Tables in ASIC DB: ``` From 18c7d5f26918923a03a7e7fb9a651a62c18e056b Mon Sep 17 00:00:00 2001 From: aviramd <34716041+aviramd@users.noreply.github.com> Date: Tue, 12 Nov 2024 16:16:02 +0200 Subject: [PATCH 4/8] Update SAI_generate_debug_dump.md --- doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md index 34e8b08b48..04100777c6 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -90,7 +90,7 @@ Introduced a new script `/usr/local/bin/gen_sai_dbg_dump.sh` # # Arguments: #  $1 - Filename for the SAI debug dump file. -#  $2 - Optional timeout for file readiness (default: 10 seconds). +#  $2 - Optional timeout for file readiness (default: 60 seconds). # # Returns: #  0 - On success From 0b9675377c98f42e01030dae35e734226fca6315 Mon Sep 17 00:00:00 2001 From: aviramd <34716041+aviramd@users.noreply.github.com> Date: Tue, 12 Nov 2024 18:12:08 +0200 Subject: [PATCH 5/8] Update SAI_generate_debug_dump.md --- doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md index 04100777c6..aa7e78cc3b 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -57,6 +57,8 @@ This new feature allows users to generate a SAI debug dump file using `show tech ### Architecture Design +Adding a new infrastructure without changes in existing Sonic Architecture + 1. A user command, such as `show techsupport` triggers the `generate_sai_dump`, and creates a new table with the dump file name to create in the APPL DB. 2. A new orchestration agent, `DbgGenDumpOrch`, is triggered to handle the request. 3. `DbgGenDumpOrch` writes the file name to the ASIC DB and sets a new operation `REDIS_ASIC_STATE_COMMAND_DBG_GEN_DUMP` for syncd. From 0e9194b93652a2984e8d4da911af813cf46c215c Mon Sep 17 00:00:00 2001 From: aviramd <34716041+aviramd@users.noreply.github.com> Date: Mon, 18 Nov 2024 16:25:52 +0200 Subject: [PATCH 6/8] Update SAI_generate_debug_dump.md --- doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md index aa7e78cc3b..b3ffe15a0b 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -55,6 +55,10 @@ This new feature allows users to generate a SAI debug dump file using `show tech + Generate a SAI debug dump file within the context of Syncd. + Maintain the existing mechanism for generating the SAI debug dump file on failure. +### Assumptions + +The SAI global API `sai_dbg_generate_dump` operates as a blocking function. + ### Architecture Design Adding a new infrastructure without changes in existing Sonic Architecture From 66836299c49f6958cc26dc5f34e72f5acf17dc8f Mon Sep 17 00:00:00 2001 From: aviramd <34716041+aviramd@users.noreply.github.com> Date: Mon, 18 Nov 2024 16:32:11 +0200 Subject: [PATCH 7/8] Update SAI_generate_debug_dump.md --- doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md index b3ffe15a0b..6a2d0936b1 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -44,7 +44,7 @@ The scope of this document is to design the handling of generating a SAI debug d ### Overview SAI dump file usually includes SDK info and configuration , SAI stats, capture of SAI lower layer states like registers vales etc... -Currently, the SAI dump file is generated only during SAI failures by executing a dedicated executable named "saisdkdump" (which linkage with the SAI lib during initialization and creates a new switch in redundant mode) +Currently, the SAI dump file is generated only during SAI failures by executing a dedicated executable named "saisdkdump" (which linkage with the SAI lib and during initialization it creates a new switch in redundant mode) This new feature allows users to generate a SAI debug dump file using `show tech-support` command, not necessarily during failure. From 6966e0c80341b7d2a41d307ecb607afe2e38eb21 Mon Sep 17 00:00:00 2001 From: aviramd Date: Wed, 11 Dec 2024 15:46:39 +0200 Subject: [PATCH 8/8] Fix doc after HLD review 1.add option for blocking and non blocking flow 2. add timeout configuration 3.result set to APP STATE DB --- .../SAI_generate_debug_dump.md | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md index 6a2d0936b1..f879c0121f 100755 --- a/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md +++ b/doc/SAI_generate_debug_dump/SAI_generate_debug_dump.md @@ -53,6 +53,8 @@ This new feature allows users to generate a SAI debug dump file using `show tech + Add infrastructure to generate a SAI debug dump file upon user request + generate a SAI debug dump file from 'show techsupport' command. + Generate a SAI debug dump file within the context of Syncd. ++ By default the operation will be blocking but also support configuration of making the action non blocking ++ In the case of a blocking operation, the timeout for file readiness will be configurable. + Maintain the existing mechanism for generating the SAI debug dump file on failure. ### Assumptions @@ -69,7 +71,7 @@ Adding a new infrastructure without changes in existing Sonic Architecture 4. Syncd calls the global SAI API `dbgGenerateDump` to generate the debug dump file, which is saved in syncd's file system. 5. Syncd sends a reply back to `DbgGenDumpOrch`. 6. `DbgGenDumpOrch` analyzes the response. -7. `DbgGenDumpOrch` updates the result in the APPL DB. +7. `DbgGenDumpOrch` updates the result in the APPL STATE DB. 8. The user command retrieves the result. 9. The debug dump file is pulled on success. @@ -91,7 +93,7 @@ Introduced a new script `/usr/local/bin/gen_sai_dbg_dump.sh` #  This function # it ensures that the `syncd` container is running before initiating the dump. # triggers the generation of a SAI debug dump file through Redis APPL DB. -# it waits for the file by Polling (with timeout) the APPL DB for the result. +# it waits for the file by Polling (with timeout) the APPL STATE DB for the result. # it removes the table from the DB when done. # # Arguments: @@ -103,7 +105,7 @@ Introduced a new script `/usr/local/bin/gen_sai_dbg_dump.sh` #  1 - On failure ############################################################################### generate_sai_dump() { - +... } ``` @@ -148,7 +150,7 @@ generate_sai_dbg_dump_file "sai_sdk_dump_$(date +"%m_%d_%Y_%I_%M_%p")" #### DbgGenDump orchestration - A new orchestration agent, `DbgGenDumpOrch`, has been introduced, which is triggered by updates in the APPL DB. -- It updates syncd by writing to the ASIC DB and waits for a response. Once received, it writes the result back to the APPL DB, allowing the calling application to retrieve the file. +- It updates syncd by writing to the ASIC DB and waits for a response. Once received, it writes the result back to the APPL STATE DB, allowing the calling application to retrieve the file. #### DB Enhancements @@ -167,6 +169,8 @@ redis-cli -n 0 HGETALL "DBG_GEN_DUMP_TABLE:DUMP" 2) "/var/log/sai_dump_file.log" ``` +Introduced a new Tables in APPL STATE DB : + wait for the dump generation result example: ``` key = DBG_GEN_DUMP_STATUS_TABLE:DUMP ; Unique identifier for gen dump file result