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[DellEMC-Z9264f-C64] Add PFC support for z9264f (#2893)

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This commit adds new code and JSON file to support PFC and
broadcom recommended MMU setting for PFC feaure on z9264f
(100G) T1 support. The buffers_defaults_t1.json file has
the broadcom recommended values for T1 configuration.
Unit tested and verified by running the JSON file and checking
the hardware registers and table in broadcom. The settings in
the hardware is reflecting the broadcom recommended values.

Signed-off-by: Harish Venkatraman <harish_venkatraman@dell.com>
This commit is contained in:
Harish Venkatraman 2019-05-16 18:49:30 -07:00 committed by lguohan
parent d29a496dbc
commit 68ccfaaade
4 changed files with 67 additions and 0 deletions
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2
device/dell/x86_64-dellemc_z9264f_c3538-r0/DellEMC-Z9264f-C64/buffers.json.j2 Normal file
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{%- set default_topo = 't1' %}
{%- include 'buffers_config.j2' %}

47
device/dell/x86_64-dellemc_z9264f_c3538-r0/DellEMC-Z9264f-C64/buffers_defaults_t1.j2 Normal file
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{%- set default_cable = '40m' %}
{%- macro generate_port_lists(PORT_ALL) %}
{# Generate list of ports #}
{%- for port_idx in range(0,64) %}
{%- if PORT_ALL.append("Ethernet%d" % (port_idx*4)) %}{%- endif %}
{%- endfor %}
{%- endmacro %}
{%- macro generate_buffer_pool_and_profiles() %}
"BUFFER_POOL": {
"ingress_lossless_pool": {
"size": "34859968",
"type": "ingress",
"mode": "dynamic",
"xoff": "7847424"
},
"egress_lossy_pool": {
"size": "29631680",
"type": "egress",
"mode": "dynamic"
},
"egress_lossless_pool": {
"size": "43481152",
"type": "egress",
"mode": "static"
}
},
"BUFFER_PROFILE": {
"ingress_lossy_profile": {
"pool":"[BUFFER_POOL|ingress_lossless_pool]",
"size":"0",
"dynamic_th":"3"
},
"egress_lossless_profile": {
"pool":"[BUFFER_POOL|egress_lossless_pool]",
"size":"1518",
"static_th":"10870288"
},
"egress_lossy_profile": {
"pool":"[BUFFER_POOL|egress_lossy_pool]",
"size":"1518",
"dynamic_th":"3"
}
},
{%- endmacro %}

17
device/dell/x86_64-dellemc_z9264f_c3538-r0/DellEMC-Z9264f-C64/pg_profile_lookup.ini Normal file
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# PG lossless profiles.
# speed cable size xon xoff threshold xon_offset
10000 5m 1248 2288 35776 -3 2288
25000 5m 1248 2288 53248 -3 2288
40000 5m 1248 2288 66560 -3 2288
50000 5m 1248 2288 90272 -3 2288
100000 5m 1248 2288 165568 -3 2288
10000 40m 1248 2288 37024 -3 2288
25000 40m 1248 2288 53248 -3 2288
40000 40m 1248 2288 71552 -3 2288
50000 40m 1248 2288 96096 -3 2288
100000 40m 1248 2288 177632 -3 2288
10000 300m 1248 2288 46176 -3 2288
25000 300m 1248 2288 79040 -3 2288
40000 300m 1248 2288 108160 -3 2288
50000 300m 1248 2288 141856 -3 2288
100000 300m 1248 2288 268736 -3 2288

1
device/dell/x86_64-dellemc_z9264f_c3538-r0/DellEMC-Z9264f-C64/qos.json.j2 Normal file
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{%- include 'qos_config.j2' %}