eBPF library support for SONiC applications #6131
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Kalimuthu-Velappan
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lguohan
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Dec 16, 2020
| @@ -0,0 +1,64 @@ | |||
| export KVERSION ?= 4.9.0-11-2-amd64 | |||
lguohan
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src/libebpf/src/Makefile.am
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| @@ -0,0 +1,4 @@ | |||
| ACLOCAL_AMFLAGS = -I m4 | |||
| export KVERSION ?= 4.9.0-11-2-amd64 | |||
lguohan
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src/libebpf/Makefile
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| export EBPF_VERSION ?= 1.0.0 | ||
| DEST ?= /sonic/target/debs/stretch/ | ||
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| MAIN_TARGET := libebpf_$(EBPF_VERSION)_amd64.deb |
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not amd64, use CONFIGURED_ARCH
It provides a generic library support for filtering the netlink message using eBPF based packet filtering. Linux netlink messaging system is a broadcast domain, every netlink message is broadcasted to all the subscribed appplications regardless whether the application is interested in it or not. In a scaled scenario, more than 1 million message is being broadcasted across applications. This framework helps to filter the unwanted netlink message at the kernel space itself and eliminates the unnecessary passing of message to the user space application and then it get dropped. This improves the system performance and scale the system to higher level.
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Fixed the review comments |
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retest this please |
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It provides generic library support for filtering the netlink message using eBPF based packet filtering.
Linux netlink messaging system is a broadcast domain, every netlink message is broadcasted to all the subscribed applications regardless of whether the application is interested in it or not.
In a scaled scenario, more than 1 million messages is being broadcasted across applications.
This framework helps to filter the unwanted netlink message at the kernel space itself and eliminates the unnecessary passing of message to the user space application and then it gets dropped. This improves the system
performance and scales the system to a higher level.
It has dependent PR:
sonic-net/sonic-linux-kernel#178
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