| 65d9b7c6 | 03-Nov-2021 |
Konstantin Ananyev <[email protected]> |
bpf: fix convert API when libpcap missing
rte_bpf_convert() implementation depends on libpcap.
Right now it is defined only when this library is installed and
RTE_PORT_PCAP is defined.
Fix that by p
bpf: fix convert API when libpcap missing
rte_bpf_convert() implementation depends on libpcap.
Right now it is defined only when this library is installed and
RTE_PORT_PCAP is defined.
Fix that by providing for such case stub rte_bpf_convert()
implementation that will always return an error.
To draw user attention, if proper implementation is disabled,
warning will be thrown at meson configure stage.
Also move stub for another function (rte_bpf_elf_load) into
the same place (bpf_stub.c).
Fixes: 2eccf6afbea9 ("bpf: add function to convert classic BPF to DPDK BPF")
Signed-off-by: Konstantin Ananyev <[email protected]>
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| 2eccf6af | 20-Oct-2021 |
Stephen Hemminger <[email protected]> |
bpf: add function to convert classic BPF to DPDK BPF
The pcap library emits classic BPF (32 bit) and is useful for
creating filter programs. The DPDK BPF library only implements
extended BPF (eBPF)
bpf: add function to convert classic BPF to DPDK BPF
The pcap library emits classic BPF (32 bit) and is useful for
creating filter programs. The DPDK BPF library only implements
extended BPF (eBPF). Add an function to convert from old to
new.
The rte_bpf_convert function uses rte_malloc to put the resulting
program in hugepage shared memory so it can be passed from a
secondary process to a primary process.
The code to convert was originally done as part of the Linux
kernel implementation then converted to a userspace program.
See https://github.com/tklauser/filter2xdp
Both authors have agreed that it is allowable to create a modified
version of this code and license it with BSD license used by DPDK.
Signed-off-by: Stephen Hemminger <[email protected]>
Acked-by: Konstantin Ananyev <[email protected]>
Acked-by: Ray Kinsella <[email protected]>
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