This is to backport #16096
Why I did it
SONiC changes:
Support Spectrum4 ASIC FW binary building.
Support new SDK sx-obj-desc lib building since new SAI need it.
Remove SX_SCEW debian package from Mellanox SDK build since we are no longer using it (we use libxml2 instead).
Update SAI, SDK, FW to version 4.6.1020/2012.1020/SAIBuild2211.25.1.0
SDK/FW bug fixes
In SPC-1 platforms: Fastboot mode is not operational for Split port with Force mode in 50G speed
SFP modules are kept in disabled state after set LPM (low power mode) on/off for at least 3 minutes.
When preforming fast boot from an old SDK version (currently installed) to a newer one (target version), and the system was initially loaded with a new SDK version (past version), and the system has not been wiped, under specific conditions, the fast boot would use the past version's data and may fail.
SDK/FW Features
On SN2700 all ports can support y cable by credo
SAI bug Fixes
When creating an ACL rule with SAI_ACL_ENTRY_ATTR_FIELD_SRC_IP/SAI_ACL_ENTRY_ATTR_FIELD_DST_IP enabled, and then disabling the field by setting enable=false, a match on L3_type=IPv4 will remain programmed for the rule Issue resolved after the fix
Allow the max scale of virtual routers to be configure for SPC-1, SPC-2, SPC-3 when fastboot enable
Remove default hash key of SRC_MAC, DST_MAC and ETH_TYPE
SAI features
Port init profile
Dual ToR Active-Standby | Additional MAC support
Work item tracking
Microsoft ADO (number only):
How I did it
Update SDK/FW/SAI make files
How to verify it
Run full sonic-mgmt regression on Mellanox platform
4f403c9079