diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/jit.c')
-rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/jit.c | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c index 323587dee498..054382b9cbe6 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c @@ -1266,7 +1266,7 @@ wrp_alu64_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta, u64 imm = insn->imm; /* sign extend */ if (skip) { - meta->skip = true; + meta->flags |= FLAG_INSN_SKIP_NOOP; return 0; } @@ -1296,7 +1296,7 @@ wrp_alu32_imm(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta, const struct bpf_insn *insn = &meta->insn; if (skip) { - meta->skip = true; + meta->flags |= FLAG_INSN_SKIP_NOOP; return 0; } @@ -3395,7 +3395,7 @@ static int nfp_fixup_branches(struct nfp_prog *nfp_prog) int err; list_for_each_entry(meta, &nfp_prog->insns, l) { - if (meta->skip) + if (meta->flags & FLAG_INSN_SKIP_MASK) continue; if (BPF_CLASS(meta->insn.code) != BPF_JMP) continue; @@ -3439,7 +3439,7 @@ static int nfp_fixup_branches(struct nfp_prog *nfp_prog) jmp_dst = meta->jmp_dst; - if (jmp_dst->skip) { + if (jmp_dst->flags & FLAG_INSN_SKIP_PREC_DEPENDENT) { pr_err("Branch landing on removed instruction!!\n"); return -ELOOP; } @@ -3689,7 +3689,7 @@ static int nfp_translate(struct nfp_prog *nfp_prog) return nfp_prog->error; } - if (meta->skip) { + if (meta->flags & FLAG_INSN_SKIP_MASK) { nfp_prog->n_translated++; continue; } @@ -3737,10 +3737,10 @@ static void nfp_bpf_opt_reg_init(struct nfp_prog *nfp_prog) /* Programs start with R6 = R1 but we ignore the skb pointer */ if (insn.code == (BPF_ALU64 | BPF_MOV | BPF_X) && insn.src_reg == 1 && insn.dst_reg == 6) - meta->skip = true; + meta->flags |= FLAG_INSN_SKIP_PREC_DEPENDENT; /* Return as soon as something doesn't match */ - if (!meta->skip) + if (!(meta->flags & FLAG_INSN_SKIP_MASK)) return; } } @@ -3755,7 +3755,7 @@ static void nfp_bpf_opt_neg_add_sub(struct nfp_prog *nfp_prog) list_for_each_entry(meta, &nfp_prog->insns, l) { struct bpf_insn insn = meta->insn; - if (meta->skip) + if (meta->flags & FLAG_INSN_SKIP_MASK) continue; if (BPF_CLASS(insn.code) != BPF_ALU && @@ -3829,7 +3829,7 @@ static void nfp_bpf_opt_ld_mask(struct nfp_prog *nfp_prog) if (meta2->flags & FLAG_INSN_IS_JUMP_DST) continue; - meta2->skip = true; + meta2->flags |= FLAG_INSN_SKIP_PREC_DEPENDENT; } } @@ -3869,8 +3869,8 @@ static void nfp_bpf_opt_ld_shift(struct nfp_prog *nfp_prog) meta3->flags & FLAG_INSN_IS_JUMP_DST) continue; - meta2->skip = true; - meta3->skip = true; + meta2->flags |= FLAG_INSN_SKIP_PREC_DEPENDENT; + meta3->flags |= FLAG_INSN_SKIP_PREC_DEPENDENT; } } @@ -4065,7 +4065,8 @@ static void nfp_bpf_opt_ldst_gather(struct nfp_prog *nfp_prog) } head_ld_meta->paired_st = &head_st_meta->insn; - head_st_meta->skip = true; + head_st_meta->flags |= + FLAG_INSN_SKIP_PREC_DEPENDENT; } else { head_ld_meta->ldst_gather_len = 0; } @@ -4098,8 +4099,8 @@ static void nfp_bpf_opt_ldst_gather(struct nfp_prog *nfp_prog) head_ld_meta = meta1; head_st_meta = meta2; } else { - meta1->skip = true; - meta2->skip = true; + meta1->flags |= FLAG_INSN_SKIP_PREC_DEPENDENT; + meta2->flags |= FLAG_INSN_SKIP_PREC_DEPENDENT; } head_ld_meta->ldst_gather_len += BPF_LDST_BYTES(ld); @@ -4124,7 +4125,7 @@ static void nfp_bpf_opt_pkt_cache(struct nfp_prog *nfp_prog) if (meta->flags & FLAG_INSN_IS_JUMP_DST) cache_avail = false; - if (meta->skip) + if (meta->flags & FLAG_INSN_SKIP_MASK) continue; insn = &meta->insn; @@ -4210,7 +4211,7 @@ start_new: } list_for_each_entry(meta, &nfp_prog->insns, l) { - if (meta->skip) + if (meta->flags & FLAG_INSN_SKIP_MASK) continue; if (is_mbpf_load_pkt(meta) && !meta->ldst_gather_len) { @@ -4246,7 +4247,8 @@ static int nfp_bpf_replace_map_ptrs(struct nfp_prog *nfp_prog) u32 id; nfp_for_each_insn_walk2(nfp_prog, meta1, meta2) { - if (meta1->skip || meta2->skip) + if (meta1->flags & FLAG_INSN_SKIP_MASK || + meta2->flags & FLAG_INSN_SKIP_MASK) continue; if (meta1->insn.code != (BPF_LD | BPF_IMM | BPF_DW) || |