diff options
Diffstat (limited to 'arch/powerpc/net')
| -rw-r--r-- | arch/powerpc/net/bpf_jit.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/net/bpf_jit_comp.c | 25 |
2 files changed, 31 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h index 1fc8109..8a5dfaf 100644 --- a/arch/powerpc/net/bpf_jit.h +++ b/arch/powerpc/net/bpf_jit.h @@ -134,6 +134,12 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh); ___PPC_RS(a) | IMM_L(i)) #define PPC_ORIS(d, a, i) EMIT(PPC_INST_ORIS | ___PPC_RA(d) | \ ___PPC_RS(a) | IMM_L(i)) +#define PPC_XOR(d, a, b) EMIT(PPC_INST_XOR | ___PPC_RA(d) | \ + ___PPC_RS(a) | ___PPC_RB(b)) +#define PPC_XORI(d, a, i) EMIT(PPC_INST_XORI | ___PPC_RA(d) | \ + ___PPC_RS(a) | IMM_L(i)) +#define PPC_XORIS(d, a, i) EMIT(PPC_INST_XORIS | ___PPC_RA(d) | \ + ___PPC_RS(a) | IMM_L(i)) #define PPC_SLW(d, a, s) EMIT(PPC_INST_SLW | ___PPC_RA(d) | \ ___PPC_RS(a) | ___PPC_RB(s)) #define PPC_SRW(d, a, s) EMIT(PPC_INST_SRW | ___PPC_RA(d) | \ diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index dd11306..e834f1e 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c @@ -13,6 +13,8 @@ #include <asm/cacheflush.h> #include <linux/netdevice.h> #include <linux/filter.h> +#include <linux/if_vlan.h> + #include "bpf_jit.h" #ifndef __BIG_ENDIAN @@ -89,6 +91,8 @@ static void bpf_jit_build_prologue(struct sk_filter *fp, u32 *image, case BPF_S_ANC_IFINDEX: case BPF_S_ANC_MARK: case BPF_S_ANC_RXHASH: + case BPF_S_ANC_VLAN_TAG: + case BPF_S_ANC_VLAN_TAG_PRESENT: case BPF_S_ANC_CPU: case BPF_S_ANC_QUEUE: case BPF_S_LD_W_ABS: @@ -232,6 +236,17 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, if (K >= 65536) PPC_ORIS(r_A, r_A, IMM_H(K)); break; + case BPF_S_ANC_ALU_XOR_X: + case BPF_S_ALU_XOR_X: /* A ^= X */ + ctx->seen |= SEEN_XREG; + PPC_XOR(r_A, r_A, r_X); + break; + case BPF_S_ALU_XOR_K: /* A ^= K */ + if (IMM_L(K)) + PPC_XORI(r_A, r_A, IMM_L(K)); + if (K >= 65536) + PPC_XORIS(r_A, r_A, IMM_H(K)); + break; case BPF_S_ALU_LSH_X: /* A <<= X; */ ctx->seen |= SEEN_XREG; PPC_SLW(r_A, r_A, r_X); @@ -371,6 +386,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, PPC_LWZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, rxhash)); break; + case BPF_S_ANC_VLAN_TAG: + case BPF_S_ANC_VLAN_TAG_PRESENT: + BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2); + PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, + vlan_tci)); + if (filter[i].code == BPF_S_ANC_VLAN_TAG) + PPC_ANDI(r_A, r_A, VLAN_VID_MASK); + else + PPC_ANDI(r_A, r_A, VLAN_TAG_PRESENT); + break; case BPF_S_ANC_QUEUE: BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, queue_mapping) != 2); |