Commit Graph

57 Commits

Author SHA1 Message Date
Kebo Liu
7873a9131d
[Mellanox] Skip the leftover hardware reboot cause in case of last boot is warm/fast reboot (#13246)
- Why I did it
In case of warm/fast reboot, the hardware reboot cause will NOT be cleared because CPLD will not be touched in this flow. To not confuse the reboot cause determine logic, the leftover hardware reboot cause shall be skipped by the platform API, platform API will return the 'REBOOT_CAUSE_NON_HARDWARE' instead of the "hardware" reboot cause.

- How I did it
Check the proc cmdline to see whether the last reboot is a warm or fast reboot, if yes skip checking the leftover hardware reboot cause.

- How to verify it
a. Manual test:
    - Perform a power loss
    - Perform a warm/fast reboot
    - Check the reboot cause should be "warm-reboot" or "fast-reboot" instead of "power loss"
b. Run reboot cause related regression test.

Signed-off-by: Kebo Liu <kebol@nvidia.com>
2023-01-11 16:50:46 +02:00
Stephen Sun
4d317aff94
[Mellanox] Fix typo in platform API (#12136)
- Why I did it
Fix a typo in chassis platform API which causes the following error

>>> import sonic_platform as P
>>> c = P.platform.Platform().get_chassis()
>>> sl = c.get_all_sfps()
>>> sl[0].get_lpmode()
Sep 28 07:48:33 INFO    LOG: Initializing SX log with STDOUT as output file.
False
>>> del c
Exception ignored in: <function Chassis.__del__ at 0x7f1d166ef8b0>
Traceback (most recent call last):
  File "/usr/local/lib/python3.9/dist-packages/sonic_platform/chassis.py", line 126, in __del__
    self.sfp_module.deinitialize_sdk_handle(sfp_module.SFP.shared_sdk_handle)
NameError: name 'sfp_module' is not defined

- How I did it
Use self while using the SDK handle

- How to verify it
Manual test

Signed-off-by: Stephen Sun <stephens@nvidia.com>
2022-09-28 11:09:18 +03:00
Stephen Sun
81600fafe9
[Mellanox] Support new platform API get_port_or_cage_type for RJ45 ports (#11336)
- Why I did it
Support get_port_or_cage_type for RJ45 ports

- How I did it
Implement the new platform API get_port_or_cage_type
Fix the issue: unable to import SFP when chassis object is destructed

- How to verify it
Manually test and regression test

Signed-off-by: Stephen Sun <stephens@nvidia.com>
2022-07-14 12:20:16 +03:00
Junchao-Mellanox
2863945f7c
[Mellanox] Fix issue: failed to decode Json while there is no hwsku.json (#11436)
- Why I did it
Fix bug: pmon report error on start up because some SKUs do not have hwsku.json

- How I did it
If hwsku.json, do not extract RJ45 port information

- How to verify it
Manual test.
Unit test.
2022-07-14 09:24:39 +03:00
Sudharsan Dhamal Gopalarathnam
23d68883f5
[Mellanox]Check dmi file permission before access (#11309)
Signed-off-by: Sudharsan Dhamal Gopalarathnam sudharsand@nvidia.com

Why I did it
During the system boot up when 'show platform status' or 'show version' command is executed before STATE_DB CHASSIS_INFO table is populated, the show will try to fallback to use the platform API. The DMI file in mellanox platforms require root permission for access. So if the show commands are executed as admin or any other user, the following error log will appear in the syslog

Jun 28 17:21:25.612123 sonic ERR show: Fail to decode DMI /sys/firmware/dmi/entries/2-0/raw due to PermissionError(13, 'Permission denied')

How I did it
Check the file permission before accessing it.

How to verify it
Added UT to verify. Manually verified if the error log is not thrown.
2022-07-01 17:29:07 -07:00
Kebo Liu
7ac590b5c5
[Mellanox] Enhance Platform API to support SN2201 - RJ45 ports and new components mgmt. (#10377)
* Support new platform SN2201 and RJ45 port

Signed-off-by: Kebo Liu <kebol@nvidia.com>

* remove unused import and redundant function

Signed-off-by: Kebo Liu <kebol@nvidia.com>

* fix error introduced by rebase

Signed-off-by: Kebo Liu <kebol@nvidia.com>

* Revert the special handling of RJ45 ports (#56)

* Revert the special handling of RJ45 ports

sfp.py
sfp_event.py
chassis.py

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Remove deadcode

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Support CPLD update for SN2201

A new class is introduced, deriving from ComponentCPLD and overloading _install_firmware
Change _install_firmware from private (starting with __) to protected, making it overloadable

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Initialize component BIOS/CPLD

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Remove swb_amb which doesn't on DVT board any more

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Remove the unexisted sensor - switch board ambient - from platform.json

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Do not report error on receiving unknown status on RJ45 ports

Translate it to disconnect for RJ45 ports
Report error for xSFP ports

Signed-off-by: Stephen Sun <stephens@nvidia.com>

* Add reinit for RJ45 to avoid exception

Signed-off-by: Stephen Sun <stephens@nvidia.com>

Co-authored-by: Stephen Sun <5379172+stephenxs@users.noreply.github.com>
Co-authored-by: Stephen Sun <stephens@nvidia.com>
2022-06-20 19:12:20 -07:00
Junchao-Mellanox
f135f37a50
[Mellanox] optimize platform API import time (#10815)
- Why I did it
"import sonic_platform" takes about 600ms ~ 1000ms, it is kind of slow. After this optimization, the time is about 100ms. The benefit is that those CLIs which does not need the slow import sentence would be faster than before.

- How I did it
Find slow import and call them when need.

- How to verify it
Measure the import time.
2022-06-07 15:13:16 +03:00
Kebo Liu
a0c76b1bc9
[Mellanox] support newly added reboot cause (#10531)
- Why I did it
Implement newly added reboot causes in PR Azure/sonic-platform-common#277

- How I did it
Map the reboot cause sysfs to the newly added reboot causes.

- How to verify it
manual test, check whether the reboot cause is correct after rebooting the switch in various ways.
run the community reboot test to see whether the reboot cause checker is passing.

Signed-off-by: Kebo Liu <kebol@nvidia.com>
2022-04-18 10:55:56 +03:00
Oleksandr Ivantsiv
9565ef7a9a
[Mellanox] Refactor SFP to use new APIs. (#10317)
- Why I did it
Refactor SFP code to remove code duplication and to be able to use the latest features available in new APIs.

- How I did it
Refactor SFP code to remove code duplication and to be able to use the latest features available in new APIs.

- How to verify it
Run sonic-mgmt/platform_tests/sfp tests
2022-03-23 09:16:03 +02:00
Lior Avramov
1fce3ebda3
[Mellanox] Add support for SN2201 platform (#9333)
- Why I did it
Add support for SN2201 platform

- How I did it
Add required content for SN2201 platform
Note: still missing kernel driver support for this system. Once all is upstream will be updated as well.

- How to verify it
Install and basic sanity tests including traffic.

Signed-off-by: liora liora@nvidia.com
2021-12-06 14:47:50 +02:00
Junchao-Mellanox
e8b4c2a1f4
[Mellanox] Refactor Mellanox platform API to support dynamic port configuration (#8422)
- Why I did it
* To support systems with dynamic port configuration
* Apply lazy initialization to faster the speed of loading platform API

- How I did it
* Add module.py to implement dynamic port configuration (aka line card model)
* Adjust chassis.py, platform.py, thermal.py, sfp.py to support dynamic port configuration
* Optimize existing code

- How to verify it
Platform regression on MSN4700, MSN3800 and MSN2700, 100% pass
Unit test covers all new changes.
2021-10-25 07:59:06 +03:00
Dror Prital
5356244e53
[Mellanox] Add NVIDIA Copyright header to "mellanox" files (#8799)
- Why I did it
Add NVIDIA Copyright header to "mellanox" files

- How I did it
Add NVIDIA Copyright header as a comment for Mellanox files

- How to verify it
Sanity tests and PR checkers.
2021-10-17 19:03:02 +03:00
Junchao-Mellanox
147bf240f0
[Mellanox] Add bitmap support for SFP error event (#7605)
#### Why I did it

Currently, SONiC use a single value to represent SFP error, however, multiple SFP errors could exist at the same time. This PR is aimed to support it

#### How I did it

Return bitmap instead of single value when a SFP event occurs

Signed-off-by: Stephen Sun <stephens@nvidia.com>
2021-06-25 10:56:47 -07:00
Stephen Sun
80d01f2f9a
[Mellanox] Enhance Python3 support for platform API (#7410)
- Why I did it
Enhance the Python3 support for platform API. Originally, some platform APIs call SDK API which didn't support Python 3. Now the Python 3 APIs have been supported in SDK 4.4.3XXX, Python3 is completely supported by platform API

- How I did it
Start all platform daemons from python3
1. Remove #/usr/bin/env python at the beginning of each platform API file as the platform API won't be started as daemons but be imported from other daemons.
2. Adjust SDK API calls accordingly

- How to verify it
Manually test and run regression platform test

Signed-off-by: Stephen Sun <stephens@nvidia.com>
2021-06-15 17:57:48 +03:00
Junchao-Mellanox
3ea3a5c8c1
[Mellanox] clear fan from chassis._fan_list (#7682)
#### Why I did it

According to thermalctld hld, each fan must belong to a fan drawer, if the fan drawer does not physically exist, put fan into a virtual fan drawer. This PR is to clear fan from chassis._fan_list

#### How I did it

1. Don't put fan to chassis._fan_list
2. Always query fan from fan_drawer
2021-05-24 11:36:39 -07:00
Alexander Allen
6a9d1e584d
[Mellanox] Implement Hardware Revision Platform API Call for Mellanox Chassis and PSU (#7552)
#### Why I did it

This pull request allows calls to be made through the platform 2.0 API that retrieve the PSU and Chassis hardware revision on Mellanox platforms. Access to these values will aid customers in determining their hardware revisions for debugging and technical support. These values are intended to be eventually exposed through the CLI. 

#### How I did it

For the PSU hardware revision I used the existing VPD function calls implemented in https://github.com/Azure/sonic-buildimage/pull/7382

For the Chassis hardware revision I parsed the SMBIOS / DMI type 2 information to retrieve the information.
2021-05-24 09:37:59 -07:00
Stephen Sun
9f0dce0313
[Mellanox] Optimize SFP modules initialization (#7537)
Originally, SFP modules were always accessed from platform daemons, and arbitrary SFP modules can be accessed in the daemon. So all SFP modules were initialized in one shot once one of the following chassis APIs called
- get_all_sfps
- get_sfp_numbers
- get_sfp

Recently, we noticed that SFP modules can also be accessed from CLI, eg. the latest refactor of `sfputil`.

In this case, only one SFP module is accessed in the chassis object's life cycle.
To initialize all SFP modules in one shot is waste of time and causes the CLI to take much more time to finish.
So we would like to optimize the initialization flow by introducing a two-phase initialization approach:
- Partial initialization, which means the `chassis._sfp_list` has been initialized with proper length and all elements being `None`
- Full initialization, which means all elements in `chassis._sfp_list` are created

If the relevant function is called,
- `get_sfp`, only partial initialization will be done, and then the specific SFP module is initialized.
- `get_all_sfps` or `get_num_sfps`, full initialization will be done, which means all SFP modules are initialized.

Signed-off-by: Stephen Sun <stephens@nvidia.com>
2021-05-06 10:14:48 -07:00
Stephen Sun
b3a283366c
Fix issue: exception occurred during chassis object being destroyed (#7446)
The following error message is observed during chassis object being destroyed

"Exception ignored in: <function Chassis.__del__ at 0x7fd22165cd08>
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/dist-packages/sonic_platform/chassis.py", line 83, in __del__
ImportError: sys.meta_path is None, Python is likely shutting down
The chassis tries to import deinitialize_sdk_handle during being destroyed for the purpose of releasing the sdk_handle.
However, importing another module during shutting down can cause the error because some of the fundamental infrastructures are no longer available."

This error occurs when a chassis object is created and then destroyed in the Python shell.

- How I did it
To fix it, record the deinitialize_sdk_handle in the chassis object when sdk_handle is being initialized and call the deinitialize handler when the chassis object is being destroyed

- How to verify it
Manually test.
2021-04-29 11:33:39 +03:00
DavidZagury
5aee92e56d
[Mellanox] Add support for SN4600 system (#6879)
- Why I did it
Add support for new 64x200G SN4600 systems

- How I did it
Add all relevant files (w/o platform.json and hwsku.json as they will come later) with default SKU.

- How to verify it
Install image on switch, verify all ports are up and configured properly, run full platform SONiC tests.
2021-02-25 09:30:43 +02:00
Junchao-Mellanox
0a49edb68e
[Mellanox] Fix issue: need import initialize_sdk_handle in get_sdk_handle (#6435)
Found test_sfp.py failed due to use a method without importing it.
2021-01-13 09:42:04 -08:00
Junchao-Mellanox
51c77b179f
[Mellanox] Add python3 support for Mellanox platform API (#6175)
python2 is end of life and SONiC is going to support python3. This PR is going to support:

1. Mellanox SONiC platform API python3 support
2. Install both python2 and python3 verson of Mellanox SONiC platform API or pmon and host side
2020-12-11 10:51:31 -08:00
Vadym Hlushko
503873056e
[Mellanox] SN4410 support (#5778)
Add support for Mellanox Spectrum-3 based 100GbE/400GbE 1U. 24 QSFP-DD28 and 8 QSFP-DD ports

Signed-off-by: Vadym Hlushko <vadymh@nvidia.com>
2020-11-24 10:43:48 -08:00
Junchao-Mellanox
b595a6eadf
[Mellanox] Implement new platform API for SONiC physical entity mib extension (#5645)
In order to support SONiC physical entity mib extension, a few new platform API are added to sonic-platform-common, this PR is to provide an mellanox platform implementation for those new APIs.
2020-11-16 18:56:03 -08:00
Junchao-Mellanox
15c59e1d8c
[Mellanox] Re-initialize SFP object when detecting a new SFP insertion (#5695)
When detecting a new SFP insertion, read its SFP type and DOM capability from EEPROM again.

SFP object will be initialized to a certain type even if no SFP present. A case could be:

1. A SFP object is initialized to QSFP type by default when there is no SFP present
2. User insert a SFP with an adapter to this QSFP port
3. The SFP object fail to read EEPROM because it still treats itself as QSFP.

This PR fixes this issue.
2020-10-23 12:36:11 -07:00
Kebo Liu
73f38f6ce9
[Mellanox] Optimize SFP Platform API implementation (#5476)
Each SFP object inside Chassis will open an SDK client, this is not necessary and SDK client can be shared between SFP objects.
2020-10-19 11:30:38 -07:00
Joe LeVeque
8011edc307
[platform] Remove references to deprecated get_serial_number() method in Chassis class (#5649)
The `get_serial_number()` method in the ChassisBase and ModuleBase classes was redundant, as the `get_serial()` method is inherited from the DeviceBase class. This method was removed from the base classes in sonic-platform-common and the submodule was updated in https://github.com/Azure/sonic-buildimage/pull/5625.

This PR aligns the existing vendor platform API implementations to remove the `get_serial_number()` methods and ensure the `get_serial()` methods are implemented, if they weren't previously.

Note that this PR does not modify the Dell platform API implementations, as this will be handled as part of https://github.com/Azure/sonic-buildimage/pull/5609
2020-10-17 22:00:14 -07:00
Kebo Liu
0a19cb4de5
[Mellanox] Refactor platform API to remove dependency on database (#5468)
**- Why I did it**
- Platform API implementation using sonic-cfggen to get platform name and SKU name, which will fail when the database is not available.
- Chassis name is not correctly assigned, it shall be assigned with EEPROM TLV "Product Name", instead of SKU name  
- Chassis model is not implemented, it shall be assigned with EEPROM TLV "Part Number"

**- How I did it**

1. Chassis

> - Get platform name from /host/machine.conf
> - Remove get SKU name with sonic-cfggen
> - Get Chassis name and model from EEPROM TLV "Product Name" and "Part Number" 
> - Add function to return model

2. EEPROM

> - Add function to return product name and part number

3. Platform

> - Init EEPROM on the host side, so also can get the Chassis name model from EEPROM on the host side.
2020-09-26 11:20:43 -07:00
Joe LeVeque
3b89e5d467
[Python] Migrate applications/scripts to import sonic-py-common package (#5043)
As part of consolidating all common Python-based functionality into the new sonic-py-common package, this pull request:
1. Redirects all Python applications/scripts in sonic-buildimage repo which previously imported sonic_device_util or sonic_daemon_base to instead import sonic-py-common, which was added in https://github.com/Azure/sonic-buildimage/pull/5003
2. Replaces all calls to `sonic_device_util.get_platform_info()` to instead call `sonic_py_common.get_platform()` and removes any calls to `sonic_device_util.get_machine_info()` which are no longer necessary (i.e., those which were only used to pass the results to `sonic_device_util.get_platform_info()`.
3. Removes unused imports to the now-deprecated sonic-daemon-base package and sonic_device_util.py module

This is the next step toward resolving https://github.com/Azure/sonic-buildimage/issues/4999

Also reverted my previous change in which device_info.get_platform() would first try obtaining the platform ID string from Config DB and fall back to gathering it from machine.conf upon failure because this function is called by sonic-cfggen before the data is in the DB, in which case, the db_connect() call will hang indefinitely, which was not the behavior I expected. As of now, the function will always reference machine.conf.
2020-08-03 11:43:12 -07:00
Nazarii Hnydyn
5c67a3c31d
[Mellanox] Fix SN3700 platform string. (#5036)
Signed-off-by: Nazarii Hnydyn <nazariig@mellanox.com>
2020-07-25 03:05:05 -07:00
Junchao-Mellanox
76d68ad1f5
[Mellanox] Add support for set/get system led status (#4829)
System health feature needs to set/get system led status

- Add a led object in chassis class and initialize it when the API is called on host side
- Read/write system led system fs to get/set the status
2020-07-13 10:22:39 -07:00
Junchao-Mellanox
563a0fd21e
[Mellanox] Change port index in port_config.ini to 1-based (#4781)
* Change port index in port_config.ini to 1-based
* Add default port index to port_config.ini, change platform plugins to accept 1-based port index
* fix port index in sfp_event.py
2020-06-23 17:21:36 -07:00
madhanmellanox
2c830f4074
Modified SKU based utils to Platform based utils (#4786)
Co-authored-by: Madhan Babu <madhan@arc-build-server.mtr.labs.mlnx>
2020-06-21 12:15:23 -07:00
Nazarii Hnydyn
1db64a3bc1
[Mellanox] Add ONIE and SSD platform components. (#4758)
Signed-off-by: Nazarii Hnydyn <nazariig@mellanox.com>
2020-06-15 14:25:49 +03:00
Junchao-Mellanox
5e6c20481d
[Mellanox] Enhancement for fan led management (#4437) 2020-05-13 10:01:32 -07:00
shlomibitton
b6291372d9
[Mellanox] Add a new Mellanox platform x86_64-mlnx_msn4600c and new SKU ACS-MSN4600C (#4483)
* New SKU support for MSN4600C

Signed-off-by: Shlomi Bitton <shlomibi@mellanox.com>
2020-04-30 00:30:11 -07:00
shlomibitton
ac6cfb115f
[Mellanox] Add a new Mellanox platform x86_64-mlnx_msn3420 and new SKU ACS-MSN3420 (#4436)
* New SKU support for MSN3420

Signed-off-by: Shlomi Bitton <shlomibi@mellanox.com>

Conflicts:
	device/mellanox/x86_64-mlnx_msn2700-r0/plugins/sfputil.py

* Add CPLD's

* Symlink fixes and semantics

* Adding new platform at end of lines
2020-04-26 14:39:55 +03:00
Junchao-Mellanox
c730f3e207
[Mellanox] thermal control enhancement for dynamic minimum fan speed and PSU fan speed policy (#4403) 2020-04-21 08:09:53 -07:00
Kebo Liu
cfa112ace8
[Mellanox] Extend mellanox platform API to report SFP error event (#4365)
* extend mellanox platform API to report SFP error event
* remove unnecessary loop code
* install enum34 to pmon to support using Enum
2020-04-14 10:20:06 -07:00
Junchao-Mellanox
80bf061b37
[Mellanox] Fix thermal control bugs (#4298)
* [thermal control] Fix pmon docker stop issue on 3800
* [thermal fix] Fix QA test issue
* [thermal fix] change psu._get_power_available_status to psu.get_power_available_status
* [thermal fix] adjust log for PSU absence and power absence
* [thermal fix] add unit test for loading thermal policy file with duplicate conditions in different policies
* [thermal] fix fan.get_presence for non-removable SKU
* [thermal fix] fix issue: fan direction is based on drawer
* Fix issue: when fan is not present, should not read fan direction from sysfs but directly return N/A
* [thermal fix] add unit test for get_direction for absent FAN
* Unplugable PSU has no FAN, no need add a FAN object for this PSU
* Update submodules

Co-authored-by: Stephen Sun <5379172+stephenxs@users.noreply.github.com>
2020-03-25 10:54:07 -07:00
Kebo Liu
f4ed88297d
[Mellanox] Add a new Mellanox platform x86_64-mlnx_msn4700 and new SKU ACS-MSN4700 (#3901)
* add MSN4700 device files

* update ACS-MSN4700 sai profile

* update buffer pool size, headroom, sensor conf, port config and reboot scripts

* fix ident

* update sensor conf and buffer pool

* [sn4700] add sku 4700 to chassis.py

* [Mellanox-4700] Add 4700 info to psu and thermal platform API

* update buffer config file template to the latest.
update SAI profile to use 100G X 4lanes for now
update port_config.ini according to the SAI profile

* [Mellanox]Update the buffer configurations for 4700

* fix alignment in pg_profile_lookup.ini

* add platform components file for new sku

* Update device/mellanox/x86_64-mlnx_msn4700-r0/ACS-MSN4700/pg_profile_lookup.ini

Co-Authored-By: Nazarii Hnydyn <nazariig@mellanox.com>

* remove redundant line

* [Mellanox]Correct type, buffer size

Co-authored-by: Nazarii Hnydyn <nazariig@mellanox.com>
Co-authored-by: junchao <junchao@mellanox.com>
Co-authored-by: Stephen Sun <stephens@mellanox.com>
2020-03-24 14:32:52 +02:00
Nazarii Hnydyn
4d22cd405f
[mellanox]: Align platform API: change CPLD version representation (#4221) 2020-03-23 09:04:11 -07:00
Junchao-Mellanox
be549db395
Add thermal control support for SONiC (#3949) 2020-03-09 10:41:10 -07:00
Nazarii Hnydyn
fc101b6ceb
[mellanox]: Add new Mellanox-SN3800-D112C8 sku. (#4085)
Signed-off-by: Nazarii Hnydyn <nazariig@mellanox.com>
2020-01-30 18:54:09 -08:00
Stephen Sun
33e918f7ff
[Mellanox] platform api support firmware install (#3931)
support firmware install, including CPLD and BIOS.

CPLD: cpldupdate
BIOS: boot to onie and update BIOS in onie and then boot to SONiC
2020-01-28 21:55:50 -08:00
Stephen Sun
d5aa0d4382 [Mellanox]support led for fan/psu and fan's direction (#3795) 2019-12-04 11:40:42 -08:00
Stephen Sun
249e858926 [Mellanox] Support SN3800 in platform api (#3593)
* [sonic_platform]Support 3800
1. add port position tuple for 3800

* [sonic_platform/chassis] address comments
2019-10-16 18:31:27 +03:00
Stephen Sun
2e3fb905a3 [Mellanox]Correct reboot cause when reboot via power cycle (#3597)
* [sonic_platform]remove the handling of reset_sw_reset which indicates rebooted by software.

* [sonic_platform]Check "reset_sw_reset"
Also check reboot cause file "reset_sw_reset" which indicates the system was rebooted due to software requesting.
2019-10-15 11:46:09 -07:00
Stephen Sun
aea09ba1da [sonic_platform] Correct the wrong log identifiers (#3596) 2019-10-15 11:29:45 -07:00
Stephen Sun
576f0982d2 [Mellanox]Resolve chassis broken due to inconsistent with latest sonic_platform_common (#3569)
*Currently get_firmware_version implementated by using chassis.get_firmware_version and chassis._component_name_list which are not supported in the latest sonic_platform_common, causing chassis broken. Update this part so that it aligns to the latest sonic_platform_common
*Support component API
2019-10-09 11:07:30 -07:00
Stephen Sun
350d2c5d2b [chassis.py] Fix issue in get_change_event: the returned dictionary doesn't contain 'sfp' key. (#3568) 2019-10-08 09:26:35 -07:00