Martin KaFai Lau 17bedab272 bpf: xdp: Allow head adjustment in XDP prog ... This patch allows XDP prog to extend/remove the packet data at the head (like adding or removing header). It is done by adding a new XDP helper bpf_xdp_adjust_head(). It also renames bpf_helper_changes_skb_data() to bpf_helper_changes_pkt_data() to better reflect that XDP prog does not work on skb. This patch adds one "xdp_adjust_head" bit to bpf_prog for the XDP-capable driver to check if the XDP prog requires bpf_xdp_adjust_head() support. The driver can then decide to error out during XDP_SETUP_PROG. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-12-08 14:25:13 -05:00
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bpf_jit32.h	powerpc/bpf/jit: Isolate classic BPF JIT specifics into a separate header	2016-06-24 15:15:51 +10:00
bpf_jit64.h	powerpc/bpf: Add support for bpf constant blinding	2016-10-04 20:33:20 +11:00
bpf_jit_asm64.S	powerpc/ebpf/jit: Implement JIT compiler for extended BPF	2016-06-24 15:17:57 +10:00
bpf_jit_asm.S	powerpc/bpf/jit: Isolate classic BPF JIT specifics into a separate header	2016-06-24 15:15:51 +10:00
bpf_jit_comp64.c	bpf: xdp: Allow head adjustment in XDP prog	2016-12-08 14:25:13 -05:00
bpf_jit_comp.c	powerpc/bpf/jit: Isolate classic BPF JIT specifics into a separate header	2016-06-24 15:15:51 +10:00
bpf_jit.h	powerpc/bpf: Implement support for tail calls	2016-10-04 20:33:19 +11:00
Makefile	powerpc/ebpf/jit: Implement JIT compiler for extended BPF	2016-06-24 15:17:57 +10:00