Why I did it
To determine the revision of the pcie.yaml to be used based on BIOS version in DellEMC S6100 platform.
Depends on: Azure/sonic-platform-common#195
How I did it
Added two revisions of pcie.yaml pcie_1.yaml and pcie_2.yaml
Included a platform-specific Pcie class to provide the revision of the pcie.yaml to be used by pcieutil/pcied.
How to verify it
Execute pcieutil check (Azure/sonic-utilities#1672) command and verify the list of PCIe devices displayed.
Logs: UT_logs.txt
#### Why I did it
- xcvrd crash was seen in latest 201811 images.
- For Dell S6100,API 2.0 uses poll mode while 1.0 was still using interrupt mode.
#### How I did it
- Modified get_transceiver_change_event in 1.0 to poll mode.
In preparation for the merging of Azure/sonic-platform-common#173, which properly defines class and instance members in the Platform API base classes.
It is proper object-oriented methodology to call the base class initializer, even if it is only the default initializer. This also future-proofs the potential addition of custom initializers in the base classes down the road.
**- Why I did it**
To incorporate the below changes in DellEMC S6100, S6000 platforms.
- S6100, S6000:
- Enable 'thermalctld'
- Implement DeviceBase methods (presence, status, model, serial) for Fantray and Component
- Implement ‘get_position_in_parent’, ‘is_replaceable’ methods for all device types
- Implement ‘get_status’ method for Fantray
- Implement ‘get_temperature’, ‘get_temperature_high_threshold’, ‘get_voltage_high_threshold’, ‘get_voltage_low_threshold’ methods for PSU
- Implement ‘get_status_led’, ‘set_status_led’ methods for Chassis
- SFP:
- Make EEPROM read both Python2 and Python3 compatible
- Fix ‘get_tx_disable_channel’ method’s return type
- Implement ‘tx_disable’, ‘tx_disable_channel’ and ‘set_power_override’ methods
- S6000:
- Move PSU thermal sensors from Chassis to respective PSU
- Make available the data of both Fans present in each Fantray
**- How I did it**
- Remove 'skip_thermalctld:true' in pmon_daemon_control.json
- Implement the platform API methods in the respective device files
- Use `bytearray` for data read from transceiver EEPROM
- Change return type of 'get_tx_disable_channel' to match specification in sonic_platform_common/sfp_base.py
Add a systemd dependency to make platform-modules service as a prerequisite for determine-reboot-cause service to ensure platform initialization is complete before determine-reboot-cause.service executes.
- Why I did it
For determining reboot-cause while running newer BIOS, SMF firmware.
- How I did it
Made changes in reboot-cause determination script to add support for behavior of newer firmware.
- How to verify it
Performed different type of resets and verified "show reboot-cause" provides the correct reason.
Logs: UT_logs.txt
- Description for the changelog
DellEMC S6100: Update reboot-cause determination to support new firmware
- Change return type of SFP methods to match specification in sonic_platform_common/sfp_base.py
- Use init methods of base classes to initialize common instance variables
- Handle negative timeout values in S6100's watchdog ‘arm’ method
- Return appropriate values for 'get_target_speed', 'set_status_led' to avoid false warnings
- Implement FanDrawer and get_high_critical_threshold Platform API for S6000, S6100, Z9100 and Z9264F.
- Fix incorrect fan direction values in S6100, Z9100
- Make DellEMC platform modules Python3 compliant.
- Change return type of PSU Platform APIs in DellEMC Z9264, S5232 and Thermal Platform APIs in S5232 to 'float'.
- Remove multiple copies of pcisysfs.py.
- PEP8 style changes for utility scripts.
- Build and install Python3 version of sonic_platform package.
- Fix minor Platform API issues.
- Why I did it
For fixing PCA MUX attachment issue in Dell S6100 platform.
- How I did it
Wait till IOM MUX powered up properly and start I2C enumeration.
Align SFP key names with new standard defined in https://github.com/Azure/sonic-platform-common/pull/97
- hardwarerev -> hardware_rev
- serialnum -> serial
- manufacturename -> manufacturer
- modelname -> model
- Connector -> connector
- Xilinx/pericom peripherals are not actively used in DellEMC S6100 switch.
- These peripherals are throwing PCIE corrected messages in some of the units and filling syslog.
- Since it is not usable disabling it at startup.
- Skip thermalctld in DellEMC S6000, S6100, Z9100 and Z9264 platforms.
- Change the return type of thermal Platform APIs in DellEMC S6000, S6100, Z9100 and Z9264 platforms to 'float'.
For detecting transceiver change events through xcvrd in DellEMC S6000, S6100 and Z9100 platforms.
- In S6000, rename 'get_transceiver_change_event' in chassis.py to 'get_change_event' and return appropriate values.
- In S6100, implement 'get_change_event' through polling method (poll interval = 1 second) in chassis.py (Transceiver insertion/removal does not generate interrupts due to a CPLD bug)
- In Z9100, implement 'get_change_event' through interrupt method using select.epoll().
- optoe driver truncates invalid pages(ff) but sff driver doesn't truncate.so,the DOM related calculation made by sff8436 driver will show incorrect data.
- Few optics doesn't support DOM.
- SFP plugins currently returns None for unreadable pages and this'd throw the below mentioned error in sfpshow eeprom --dom.
Implement Watchdog platform2.0 API for DellEMC S6100 platform.
- Added new file watchdog.py in sonic_platform directory.
- Enabled API support to Enable/disable watchdog.
Implemented remaining APIs in s6100,z9100,s6000
Removed soft link in s6100,s6000,z9100 and implemented seperately
Implemented get_transceiver_change_event in S6000
* [DELL][Z9100,S6100,S6000] Platform 2.0 SFP Changes
Added support in sfp.py file which will be generic. Send the eeprom path and sfp_control path from chassis.py
Added Reboot Reason for S6000 in platform 2.0
Fixed issue in process-reboot-cause
Added package uninstall code in platform de-init code for z9100, s6100
- How I did it
-> Added support for S6000 Reboot Reason
-> Added platform.py for all platforms
-> Verified show reboot-cause command with the code changes. Added UT logs with show reboot-cause
-> Modified process-reboot-cause service to start after pmon.service. In S6000, we have to wait for nvram to be loaded.
-> If reboot-cause service starts before pmon.service, show reboot-cause is showing incorrect reason.
-> Bug fix in process-reboot-cause file
- import sonic_platform
+ import sonic_platform.platform
The following commit addresses the graceful unmounting of file
system and graceful shutdown of dockers before calling a
cold reboot which will cause a power cycle of SSD. This ensures
orderly shutdown and no corruption of files systems because
of the power cycle to SSD.
This commit will use the existing systemd-reboot service scripts
and override the configuration to do cold reboot for S6100 and
Z9100.
Unit tested the fix and graceful shutdown of file system and
dockers are done with cold reboot.
Signed-off-by: Harish Venkatraman <harish_venkatraman@dell.com>
- What I did
Added Daemon to Log LPC bus degradation in Intel C2000 processor. Intel Rangeley C2000 processors with revision less than or equal to 2 have issue where LPC bus degrades over time in some processors. To identify the problem and to notify the issue, a daemon has been added which will log on encountering the issue.
- How I did it
Added a daemon which validates the CPLD scratch(0x102) and SMF scratch(0x202) registers by writing and reading values on regular polling intervals (300 seconds). If there is a discrepancy between read and write, a critical log will be thrown.
- How to verify it
The infra is verify by simulating the issue where between write and read, the value in register is modified and the log appearance is checked.
- Description for the changelog
Added Daemon to identify LPC bus degradation issue and notify using syslog in Dell S6100 and Z9100 platforms. This daemon will only run on processors with revision less than or equal to 2.
