For sflow feature, SAI changes needed for sonic-vs platform#498
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lguohan merged 3 commits intosonic-net:masterfrom Sep 15, 2019
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For sflow feature, SAI changes needed for sonic-vs platform#498lguohan merged 3 commits intosonic-net:masterfrom
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…ling is configured on a port.
This is applicable only for sflow feature running on sonic VS.
Signed-off-by: Rakesh Datta <[email protected]>
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* Update: modified some words to pass the spell-check error Signed-off-by: Rakesh Datta <[email protected]>
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* Bugfix: Updation of sampling rate is creating multiple 'tc filter' entries Signed-off-by: Rakesh Datta <[email protected]>
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When sflow is configured using CLI or other supported mechanisms, the orch-agent invokes the SAI API set_port_attribute(). For the sflow feature, his API is used to set the SAI_PORT_ATTR_INGRESS_SAMPLEPACKET_ENABLE attribute of a netdev port. The value stored for this attribute is a samplepacket object, which essentially contains various sampling attributes (sampling rate, sampler group etc.) associated with the port. When sampling is disabled on a port, the SAI_PORT_ATTR_INGRESS_SAMPLEPACKET_ENABLE attribute is set to a null object. When sampling is enabled on a port, the SAI_PORT_ATTR_INGRESS_SAMPLEPACKET_ENABLE attribute is set to a valid samplepacket object. For sonic-vs, in the absence of a real ASIC programming, the 'tc' command is used instead to configure the sampling parameters inside the kernel. In this PR we invoke the appropriate 'tc' command, based on the requested config actions (disable or enable or update). Signed-off-by: Rakesh Datta <[email protected]>
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Add SAI library changes to support sflow in sonic-vs.
When sflow is configured using CLI or other supported mechanisms, the orch-agent invokes
the SAI API set_port_attribute(). For the sflow feature, his API is used to set the SAI_PORT_ATTR_INGRESS_SAMPLEPACKET_ENABLE attribute of a netdev port. The value stored for this attribute is a samplepacket object, which essentially contains various sampling attributes (sampling rate, sampler group etc.) associated with the port.
When sampling is disabled on a port, the SAI_PORT_ATTR_INGRESS_SAMPLEPACKET_ENABLE attribute is set to a null object.
When sampling is enabled on a port, the SAI_PORT_ATTR_INGRESS_SAMPLEPACKET_ENABLE attribute is set to a valid samplepacket object.
For sonic-vs, in the absence of a real ASIC programming, the 'tc' command is used instead to configure the sampling parameters inside the kernel. In this PR we invoke the appropriate 'tc' command, based on the requested config actions (disable or enable or update).
How to verify it
Description for the changelog
Additional Information
Please DO NOT MERGE until these PRs are merged:
Build infrastructure changes to support sflow docker and utilities sonic-buildimage#3251
Signed-off-by: Rakesh Datta [email protected]