[Mellanox] Update Mellanox-SN5600-C256S1 buffer calculations #20991
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dprital
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Dec 2, 2024
kperumalbfn
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Dec 10, 2024
| {% set egress_lossless_pool_size = '158229504' %} | ||
| {% set egress_lossy_pool_size = '137779200' %} | ||
| {% set egress_lossy_pool_size = '142703616' %} |
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@noaOrMlnx Are we having both lossless and lossy pool?
liat-grozovik
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Dec 12, 2024
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lossy is small according to the current needs. removing this capability i s not currently support in sonic |
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…et#20991) - Why I did it Update buffer calculations for Mellanox-SN5600-C256S1 HwSKU. - How I did it Update lossless pool - How to verify it Run sonic-mgmt QoS test
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Cherry-pick PR to 202405: #21328 |
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1. For spc4, there is only lossy buffer, so the buffer for lossless buffer will be taken by lossy buffer, if the packet size is too small, the packet number sent to occupy the shared buffer will increase a lot, so it will lead that descriptor will be exhausted, so update testQosSaiPgSharedWatermark, testQosSaiQSharedWatermark and testQosSaiLossyQueue accordingly. 2. Remove the test config of scheduler.block_data_plane, otherwise it might rise yang validation error when do config reload 3. list the relevant Prs: sonic-net/sonic-buildimage#20992 sonic-net/sonic-buildimage#21056 sonic-net/sonic-buildimage#20991
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…et#20991) - Why I did it Update buffer calculations for Mellanox-SN5600-C256S1 HwSKU. - How I did it Update lossless pool - How to verify it Run sonic-mgmt QoS test
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Cherry-pick PR to 202411: #21499 |
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Why I did it
Update buffer calculations for Mellanox-SN5600-C256S1 HwSKU.
Work item tracking
How I did it
Update lossless pool
How to verify it
Run sonic-mgmt QoS test
Which release branch to backport (provide reason below if selected)
Tested branch (Please provide the tested image version)
Description for the changelog
Link to config_db schema for YANG module changes
A picture of a cute animal (not mandatory but encouraged)