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| author | Jakub Kicinski | 2017-12-01 06:32:56 +0100 |
|---|---|---|
| committer | Daniel Borkmann | 2017-12-01 20:59:20 +0100 |
| commit | 5468a8b929e6276e139405d525c963a56890b5e0 (patch) | |
| tree | 0d9456ecbfb636428198cc88a55b4b7780c7abe7 /drivers/net/ethernet/netronome/nfp/bpf/jit.c | |
| parent | nfp: bpf: correct the encoding for No-Dest immed (diff) | |
| download | kernel-qcow2-linux-5468a8b929e6276e139405d525c963a56890b5e0.tar.gz kernel-qcow2-linux-5468a8b929e6276e139405d525c963a56890b5e0.tar.xz kernel-qcow2-linux-5468a8b929e6276e139405d525c963a56890b5e0.zip | |
nfp: bpf: encode indirect commands
Add support for emitting commands with field overwrites.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Jiong Wang <jiong.wang@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/bpf/jit.c')
| -rw-r--r-- | drivers/net/ethernet/netronome/nfp/bpf/jit.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/jit.c b/drivers/net/ethernet/netronome/nfp/bpf/jit.c index 024b44089623..da4e106d3b16 100644 --- a/drivers/net/ethernet/netronome/nfp/bpf/jit.c +++ b/drivers/net/ethernet/netronome/nfp/bpf/jit.c @@ -96,7 +96,7 @@ nfp_prog_offset_to_index(struct nfp_prog *nfp_prog, unsigned int offset) /* --- Emitters --- */ static void __emit_cmd(struct nfp_prog *nfp_prog, enum cmd_tgt_map op, - u8 mode, u8 xfer, u8 areg, u8 breg, u8 size, bool sync) + u8 mode, u8 xfer, u8 areg, u8 breg, u8 size, bool sync, bool indir) { enum cmd_ctx_swap ctx; u64 insn; @@ -114,14 +114,15 @@ __emit_cmd(struct nfp_prog *nfp_prog, enum cmd_tgt_map op, FIELD_PREP(OP_CMD_CNT, size) | FIELD_PREP(OP_CMD_SIG, sync) | FIELD_PREP(OP_CMD_TGT_CMD, cmd_tgt_act[op].tgt_cmd) | + FIELD_PREP(OP_CMD_INDIR, indir) | FIELD_PREP(OP_CMD_MODE, mode); nfp_prog_push(nfp_prog, insn); } static void -emit_cmd(struct nfp_prog *nfp_prog, enum cmd_tgt_map op, - u8 mode, u8 xfer, swreg lreg, swreg rreg, u8 size, bool sync) +emit_cmd_any(struct nfp_prog *nfp_prog, enum cmd_tgt_map op, u8 mode, u8 xfer, + swreg lreg, swreg rreg, u8 size, bool sync, bool indir) { struct nfp_insn_re_regs reg; int err; @@ -142,7 +143,15 @@ emit_cmd(struct nfp_prog *nfp_prog, enum cmd_tgt_map op, return; } - __emit_cmd(nfp_prog, op, mode, xfer, reg.areg, reg.breg, size, sync); + __emit_cmd(nfp_prog, op, mode, xfer, reg.areg, reg.breg, size, sync, + indir); +} + +static void +emit_cmd(struct nfp_prog *nfp_prog, enum cmd_tgt_map op, u8 mode, u8 xfer, + swreg lreg, swreg rreg, u8 size, bool sync) +{ + emit_cmd_any(nfp_prog, op, mode, xfer, lreg, rreg, size, sync, false); } static void |