bpf: tests: pktgen infra for tunneling + GENEVE-DSR test #26301
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Introduce pktgen support for pushing a UDP header. Add one UDP test that uses it. Signed-off-by: Julian Wiedmann <jwi@isovalent.com>
This requires moving the tunnel-related definitions into a separate header file, so that it can be included from pktgen. Signed-off-by: Julian Wiedmann <jwi@isovalent.com>
This will see more usage in subsequent patches. Signed-off-by: Julian Wiedmann <jwi@isovalent.com>
Test the usual scenario in a config with DSR-Geneve dispatch. The tests for the other scenarios (backend processing / bpf_host) will come at a later time. Signed-off-by: Julian Wiedmann <jwi@isovalent.com>
Note that we can't bump this any further, the test programs get too big. Signed-off-by: Julian Wiedmann <jwi@isovalent.com>
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Add the necessary bits so that pktgen can build tunnel encapsulation headers (UDP, VXLAN, GENEVE). Exercise it with some initial tests - more to come.