diff options
Diffstat (limited to 'arch/powerpc/net/bpf_jit_comp.c')
-rw-r--r-- | arch/powerpc/net/bpf_jit_comp.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c index dd1130642d07..e834f1ec23c8 100644 --- a/arch/powerpc/net/bpf_jit_comp.c +++ b/arch/powerpc/net/bpf_jit_comp.c | |||
@@ -13,6 +13,8 @@ | |||
13 | #include <asm/cacheflush.h> | 13 | #include <asm/cacheflush.h> |
14 | #include <linux/netdevice.h> | 14 | #include <linux/netdevice.h> |
15 | #include <linux/filter.h> | 15 | #include <linux/filter.h> |
16 | #include <linux/if_vlan.h> | ||
17 | |||
16 | #include "bpf_jit.h" | 18 | #include "bpf_jit.h" |
17 | 19 | ||
18 | #ifndef __BIG_ENDIAN | 20 | #ifndef __BIG_ENDIAN |
@@ -89,6 +91,8 @@ static void bpf_jit_build_prologue(struct sk_filter *fp, u32 *image, | |||
89 | case BPF_S_ANC_IFINDEX: | 91 | case BPF_S_ANC_IFINDEX: |
90 | case BPF_S_ANC_MARK: | 92 | case BPF_S_ANC_MARK: |
91 | case BPF_S_ANC_RXHASH: | 93 | case BPF_S_ANC_RXHASH: |
94 | case BPF_S_ANC_VLAN_TAG: | ||
95 | case BPF_S_ANC_VLAN_TAG_PRESENT: | ||
92 | case BPF_S_ANC_CPU: | 96 | case BPF_S_ANC_CPU: |
93 | case BPF_S_ANC_QUEUE: | 97 | case BPF_S_ANC_QUEUE: |
94 | case BPF_S_LD_W_ABS: | 98 | case BPF_S_LD_W_ABS: |
@@ -232,6 +236,17 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, | |||
232 | if (K >= 65536) | 236 | if (K >= 65536) |
233 | PPC_ORIS(r_A, r_A, IMM_H(K)); | 237 | PPC_ORIS(r_A, r_A, IMM_H(K)); |
234 | break; | 238 | break; |
239 | case BPF_S_ANC_ALU_XOR_X: | ||
240 | case BPF_S_ALU_XOR_X: /* A ^= X */ | ||
241 | ctx->seen |= SEEN_XREG; | ||
242 | PPC_XOR(r_A, r_A, r_X); | ||
243 | break; | ||
244 | case BPF_S_ALU_XOR_K: /* A ^= K */ | ||
245 | if (IMM_L(K)) | ||
246 | PPC_XORI(r_A, r_A, IMM_L(K)); | ||
247 | if (K >= 65536) | ||
248 | PPC_XORIS(r_A, r_A, IMM_H(K)); | ||
249 | break; | ||
235 | case BPF_S_ALU_LSH_X: /* A <<= X; */ | 250 | case BPF_S_ALU_LSH_X: /* A <<= X; */ |
236 | ctx->seen |= SEEN_XREG; | 251 | ctx->seen |= SEEN_XREG; |
237 | PPC_SLW(r_A, r_A, r_X); | 252 | PPC_SLW(r_A, r_A, r_X); |
@@ -371,6 +386,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image, | |||
371 | PPC_LWZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, | 386 | PPC_LWZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, |
372 | rxhash)); | 387 | rxhash)); |
373 | break; | 388 | break; |
389 | case BPF_S_ANC_VLAN_TAG: | ||
390 | case BPF_S_ANC_VLAN_TAG_PRESENT: | ||
391 | BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2); | ||
392 | PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff, | ||
393 | vlan_tci)); | ||
394 | if (filter[i].code == BPF_S_ANC_VLAN_TAG) | ||
395 | PPC_ANDI(r_A, r_A, VLAN_VID_MASK); | ||
396 | else | ||
397 | PPC_ANDI(r_A, r_A, VLAN_TAG_PRESENT); | ||
398 | break; | ||
374 | case BPF_S_ANC_QUEUE: | 399 | case BPF_S_ANC_QUEUE: |
375 | BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, | 400 | BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, |
376 | queue_mapping) != 2); | 401 | queue_mapping) != 2); |