diff options
| author |   Denis Kirjanov <kda@linux-powerpc.org> | 2014-10-30 09:12:15 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-11-03 15:29:42 -0500 |
| commit | 4e2357611323d562fe255d9d71309b3ece30b8cd (patch) | |
| tree | 26db9651c4e5adc1c2bfb1dfcd1b28c46fd47a6b /arch/powerpc/net/bpf_jit_comp.c | |
| parent | Merge branch 'mlx4-next' (diff) | |
| download | linux-dev-4e2357611323d562fe255d9d71309b3ece30b8cd.tar.xz linux-dev-4e2357611323d562fe255d9d71309b3ece30b8cd.zip | |
PPC: bpf_jit_comp: add SKF_AD_PKTTYPE instruction
Add BPF extension SKF_AD_PKTTYPE to ppc JIT to load
skb->pkt_type field.
Before:
[ 88.262622] test_bpf: #11 LD_IND_NET 86 97 99 PASS
[ 88.265740] test_bpf: #12 LD_PKTTYPE 109 107 PASS
After:
[ 80.605964] test_bpf: #11 LD_IND_NET 44 40 39 PASS
[ 80.607370] test_bpf: #12 LD_PKTTYPE 9 9 PASS
CC: Alexei Starovoitov<alexei.starovoitov@gmail.com>
CC: Michael Ellerman<mpe@ellerman.id.au>
Cc: Matt Evans <matt@ozlabs.org>
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
v2: Added test rusults
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index cbae2dfd053c..d110e288d7ac 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -407,6 +407,11 @@ static int bpf_jit_build_body(struct bpf_prog *fp, u32 *image, PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, queue_mapping)); break; + case BPF_ANC | SKF_AD_PKTTYPE: + PPC_LBZ_OFFS(r_A, r_skb, PKT_TYPE_OFFSET()); + PPC_ANDI(r_A, r_A, PKT_TYPE_MAX); + PPC_SRWI(r_A, r_A, 5); + break; case BPF_ANC | SKF_AD_CPU: #ifdef CONFIG_SMP /* |