diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/main.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/main.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.h b/drivers/net/ethernet/netronome/nfp/bpf/main.h index 5884291ddba5..f49669bf6b44 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/main.h +++ b/drivers/net/ethernet/netronome/nfp/bpf/main.h @@ -78,6 +78,29 @@ enum pkt_vec { #define NFP_BPF_ABI_FLAGS reg_imm(0) #define NFP_BPF_ABI_FLAG_MARK 1 +/** + * struct nfp_app_bpf - bpf app priv structure + * @app: backpointer to the app + * + * @adjust_head: adjust head capability + * @flags: extra flags for adjust head + * @off_min: minimal packet offset within buffer required + * @off_max: maximum packet offset within buffer required + * @guaranteed_sub: amount of negative adjustment guaranteed possible + * @guaranteed_add: amount of positive adjustment guaranteed possible + */ +struct nfp_app_bpf { + struct nfp_app *app; + + struct nfp_bpf_cap_adjust_head { + u32 flags; + int off_min; + int off_max; + int guaranteed_sub; + int guaranteed_add; + } adjust_head; +}; + struct nfp_prog; struct nfp_insn_meta; typedef int (*instr_cb_t)(struct nfp_prog *, struct nfp_insn_meta *); @@ -97,6 +120,7 @@ typedef int (*instr_cb_t)(struct nfp_prog *, struct nfp_insn_meta *); * @ptr: pointer type for memory operations * @ldst_gather_len: memcpy length gathered from load/store sequence * @paired_st: the paired store insn at the head of the sequence + * @arg2: arg2 for call instructions * @ptr_not_const: pointer is not always constant * @jmp_dst: destination info for jump instructions * @off: index of first generated machine instruction (in nfp_prog.prog) @@ -116,6 +140,7 @@ struct nfp_insn_meta { bool ptr_not_const; }; struct nfp_insn_meta *jmp_dst; + struct bpf_reg_state arg2; }; unsigned int off; unsigned short n; @@ -160,6 +185,7 @@ static inline bool is_mbpf_store(const struct nfp_insn_meta *meta) /** * struct nfp_prog - nfp BPF program + * @bpf: backpointer to the bpf app priv structure * @prog: machine code * @prog_len: number of valid instructions in @prog array * @__prog_alloc_len: alloc size of @prog array @@ -173,9 +199,12 @@ static inline bool is_mbpf_store(const struct nfp_insn_meta *meta) * @n_translated: number of successfully translated instructions (for errors) * @error: error code if something went wrong * @stack_depth: max stack depth from the verifier + * @adjust_head_location: if program has single adjust head call - the insn no. * @insns: list of BPF instruction wrappers (struct nfp_insn_meta) */ struct nfp_prog { + struct nfp_app_bpf *bpf; + u64 *prog; unsigned int prog_len; unsigned int __prog_alloc_len; @@ -194,6 +223,7 @@ struct nfp_prog { int error; unsigned int stack_depth; + unsigned int adjust_head_location; struct list_head insns; }; |