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Support single ingress pool for MSFT SKUs and optimize headroom calcu…
…lation (sonic-net#5194) This is to backport the sonic-net#4886 to 201911 Calculate pool size in t1 as 24 * downlink port + 8 * uplink port - Take both port and peer MTU into account when calculating headroom - Worst case factor is decreased to 50% - Mellanox-SN2700-C28D8 t0, assume 48 * 50G/5m + 8 * 100G/40m ports - Mellanox-SN2700 (C32) - t0: 16 * 100G/5m + 16 * 100G/40m - t1: 16 * 100G/40m + 16 * 100G/300m Signed-off-by: Stephen Sun <stephens@nvidia.com>
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device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700/buffers.json.j2
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device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700/pg_profile_lookup.ini
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device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700/port_config.ini
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device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700/qos.json.j2
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device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700/sai.profile
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device/mellanox/x86_64-mlnx_msn2700-r0/Mellanox-SN2700/sai_2700.xml
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device/mellanox/x86_64-mlnx_msn3800-r0/Mellanox-SN3800-C64/buffers.json.j2
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device/mellanox/x86_64-mlnx_msn3800-r0/Mellanox-SN3800-C64/pg_profile_lookup.ini
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device/mellanox/x86_64-mlnx_msn3800-r0/Mellanox-SN3800-C64/port_config.ini
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device/mellanox/x86_64-mlnx_msn3800-r0/Mellanox-SN3800-C64/qos.json.j2
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device/mellanox/x86_64-mlnx_msn3800-r0/Mellanox-SN3800-C64/sai_3800.xml
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