diff options
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/main.h')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/main.h | 44 |
1 files changed, 27 insertions, 17 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.h b/drivers/net/ethernet/netronome/nfp/bpf/main.h index 89a9b6393882..66381afee2a9 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/main.h +++ b/drivers/net/ethernet/netronome/nfp/bpf/main.h @@ -42,17 +42,28 @@ #include "../nfp_asm.h" -/* For branch fixup logic use up-most byte of branch instruction as scratch +/* For relocation logic use up-most byte of branch instruction as scratch * area. Remember to clear this before sending instructions to HW! */ -#define OP_BR_SPECIAL 0xff00000000000000ULL - -enum br_special { - OP_BR_NORMAL = 0, - OP_BR_GO_OUT, - OP_BR_GO_ABORT, +#define OP_RELO_TYPE 0xff00000000000000ULL + +enum nfp_relo_type { + RELO_NONE = 0, + /* standard internal jumps */ + RELO_BR_REL, + /* internal jumps to parts of the outro */ + RELO_BR_GO_OUT, + RELO_BR_GO_ABORT, + /* external jumps to fixed addresses */ + RELO_BR_NEXT_PKT, }; +/* To make absolute relocated branches (branches other than RELO_BR_REL) + * distinguishable in user space dumps from normal jumps, add a large offset + * to them. + */ +#define BR_OFF_RELO 15000 + enum static_regs { STATIC_REG_IMM = 21, /* Bank AB */ STATIC_REG_STACK = 22, /* Bank A */ @@ -191,11 +202,9 @@ static inline bool is_mbpf_store(const struct nfp_insn_meta *meta) * @__prog_alloc_len: alloc size of @prog array * @verifier_meta: temporary storage for verifier's insn meta * @type: BPF program type - * @start_off: address of the first instruction in the memory * @last_bpf_off: address of the last instruction translated from BPF * @tgt_out: jump target for normal exit * @tgt_abort: jump target for abort (e.g. access outside of packet buffer) - * @tgt_done: jump target to get the next packet * @n_translated: number of successfully translated instructions (for errors) * @error: error code if something went wrong * @stack_depth: max stack depth from the verifier @@ -213,11 +222,9 @@ struct nfp_prog { enum bpf_prog_type type; - unsigned int start_off; unsigned int last_bpf_off; unsigned int tgt_out; unsigned int tgt_abort; - unsigned int tgt_done; unsigned int n_translated; int error; @@ -231,11 +238,16 @@ struct nfp_prog { /** * struct nfp_bpf_vnic - per-vNIC BPF priv structure * @tc_prog: currently loaded cls_bpf program + * @start_off: address of the first instruction in the memory + * @tgt_done: jump target to get the next packet */ struct nfp_bpf_vnic { struct bpf_prog *tc_prog; + unsigned int start_off; + unsigned int tgt_done; }; +void nfp_bpf_jit_prepare(struct nfp_prog *nfp_prog, unsigned int cnt); int nfp_bpf_jit(struct nfp_prog *prog); extern const struct bpf_prog_offload_ops nfp_bpf_analyzer_ops; @@ -244,16 +256,14 @@ struct netdev_bpf; struct nfp_app; struct nfp_net; +int nfp_ndo_bpf(struct nfp_app *app, struct nfp_net *nn, + struct netdev_bpf *bpf); int nfp_net_bpf_offload(struct nfp_net *nn, struct bpf_prog *prog, bool old_prog); -int nfp_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn, - struct netdev_bpf *bpf); -int nfp_bpf_translate(struct nfp_app *app, struct nfp_net *nn, - struct bpf_prog *prog); -int nfp_bpf_destroy(struct nfp_app *app, struct nfp_net *nn, - struct bpf_prog *prog); struct nfp_insn_meta * nfp_bpf_goto_meta(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta, unsigned int insn_idx, unsigned int n_insns); + +void *nfp_bpf_relo_for_vnic(struct nfp_prog *nfp_prog, struct nfp_bpf_vnic *bv); #endif |