Update loading bpf programs with reuse map options #309
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Signed-off-by: sanfern <santhosh.fernandes@gmail.com> Signed-off-by: sferna1 <santhosh.fernandes@gmail.com>
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Signed-off-by: sanfern <santhosh.fernandes@gmail.com> Signed-off-by: Atul-source <atulprajapati6031@gmail.com>
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The purpose of this PR is to load the BPF program with the option to reuse maps. When we need to load two programs in case of TM (ingress, egress), shared bpf map i.e. redirect_iface. We need to avoid creating two instance of maps, and pin one map. Here we need to reuse same map for the both programs.
Implementing this, we need to define maps with the pinning attribute and provide the map pin path during loading from the l3afd. If the map already exists while loading, it will be reuse instead of creating a new one.