* Update PG headroom settings ports based on port speed/cable length
* Updated XOFF settings to use chip level numbers than core
* Updated PG headroom based on uplink/downlink side
* fix for sonic-config-gen tests
* More fixes for unit test cases
* more test fixes
* Merged multiple functions into one
Why I did it
Update ECN settings for T2 chassis
How I did it
Updated qos config file to load these settings during switch bootup
How to verify it
Verified on line card on T2 chassis
Why I did it
Support Egress Mirroring on supported Arista platforms
How I did it
Add necessary soc properties for egress mirroring recycle ports to be created
Signed-off-by: Nathan Wolfe <nwolfe@arista.com>
Updated asic_port_names for all Arista LC SKUs to follow latest naming
conventions to remove redundant ASICx suffix. For
Arista-7800R3-48CQ2-C48, added the asic_port_name mapping.
To support 64 cores on arista skus. Fixesaristanetworks/sonic#77
Remapped recycle ports to lowers core port ids and set appl_param_nof_ports_per_modid to 64.
Eariler the SDK stat polling was erroneously set to once every msec
which is far more frequent than required by SWSS. The new setting, which
is consistent with other vendor SKUs, is once a second. The net result
is reduced CPU MHz by syncd.
Why I did it
On DNX (J2/J2c/J2c+) platforms, Single Path Nexthops and ECMp Nexthop resources(FECs) are shared. BRCM SAI do not have partition of this resource, and hence more single path Nexthop entries, causes ECMP programming to fail in scaled setup.
How I did it
Broadcom provided SAI changes to reserve resources for single path nexthop entries(More details in CSP: https://brcmsemiconductor-csm.wolkenservicedesk.com/wolken-support/allcases/request-details?requestId=CS00012251649).
Along with SAI changes, they provided configurable Macro/flag to reserve NON_ECMP entries.
This PR is to add that flag in various sai.profile files wherever applicable.
PS: We are reserving 3072 single path Nexthop entries on each Linecard. Calculation is as follows.
Max Slots per chassis: 8
Max No of Ports(each LC): 64
MyIP/Subnet Entries per port: 4(v4/v6)
Nbr Entries Per port: 2(v4/v6)
Total Non_ECMP Count: 8x64x(4+2) = 3072
How to verify it
Without this change, the ECMP group count will be shown as Max_count in 'crm show resources all' command, and with this change the ECMP group count will be decreased by 24(3072/128).
Port indexes of front panel ports are not contiguous in multi-asic because we didn't distiguish between
front panel and internal ports, e.g., recycle ports. Fix this by assigning index to front panel port first
and then internal ports.
