From 650195cf965aba2cfe25d3806f7eb4ff51ee0a4e Mon Sep 17 00:00:00 2001 From: Cristian Dumitrescu Date: Thu, 1 Oct 2020 11:19:46 +0100 Subject: [PATCH] pipeline: introduce SWX and instruction The and (i.e. bitwise and) instruction source can be header field (H), meta-data field (M), extern object (E) or function (F) mailbox field, table entry action data field (T) or immediate value (I). The destination is HMEF. Signed-off-by: Cristian Dumitrescu --- lib/librte_pipeline/rte_swx_pipeline.c | 114 +++++++++++++++++++++++++ 1 file changed, 114 insertions(+) diff --git a/lib/librte_pipeline/rte_swx_pipeline.c b/lib/librte_pipeline/rte_swx_pipeline.c index 364c7d75ae..fe44e520cf 100644 --- a/lib/librte_pipeline/rte_swx_pipeline.c +++ b/lib/librte_pipeline/rte_swx_pipeline.c @@ -303,6 +303,14 @@ enum instruction_type { * dst = H, src = H */ INSTR_ALU_CKSUB_FIELD, + + /* and dst src + * dst &= src + * dst = HMEF, src = HMEFTI + */ + INSTR_ALU_AND, /* dst = MEF, src = MEFT */ + INSTR_ALU_AND_S, /* (dst, src) = (MEF, H) or (dst, src) = (H, MEFT) */ + INSTR_ALU_AND_I, /* dst = HMEF, src = I */ }; struct instr_operand { @@ -3070,6 +3078,55 @@ instr_alu_cksub_translate(struct rte_swx_pipeline *p, return 0; } +static int +instr_alu_and_translate(struct rte_swx_pipeline *p, + struct action *action, + char **tokens, + int n_tokens, + struct instruction *instr, + struct instruction_data *data __rte_unused) +{ + char *dst = tokens[1], *src = tokens[2]; + struct field *fdst, *fsrc; + uint32_t dst_struct_id, src_struct_id, src_val; + + CHECK(n_tokens == 3, EINVAL); + + fdst = struct_field_parse(p, NULL, dst, &dst_struct_id); + CHECK(fdst, EINVAL); + + /* AND or AND_S. */ + fsrc = struct_field_parse(p, action, src, &src_struct_id); + if (fsrc) { + instr->type = INSTR_ALU_AND; + if ((dst[0] == 'h' && src[0] != 'h') || + (dst[0] != 'h' && src[0] == 'h')) + instr->type = INSTR_ALU_AND_S; + + instr->alu.dst.struct_id = (uint8_t)dst_struct_id; + instr->alu.dst.n_bits = fdst->n_bits; + instr->alu.dst.offset = fdst->offset / 8; + instr->alu.src.struct_id = (uint8_t)src_struct_id; + instr->alu.src.n_bits = fsrc->n_bits; + instr->alu.src.offset = fsrc->offset / 8; + return 0; + } + + /* AND_I. */ + src_val = strtoul(src, &src, 0); + CHECK(!src[0], EINVAL); + + if (dst[0] == 'h') + src_val = htonl(src_val); + + instr->type = INSTR_ALU_AND_I; + instr->alu.dst.struct_id = (uint8_t)dst_struct_id; + instr->alu.dst.n_bits = fdst->n_bits; + instr->alu.dst.offset = fdst->offset / 8; + instr->alu.src_val = (uint32_t)src_val; + return 0; +} + static inline void instr_alu_add_exec(struct rte_swx_pipeline *p) { @@ -3250,6 +3307,51 @@ instr_alu_sub_hi_exec(struct rte_swx_pipeline *p) thread_ip_inc(p); } +static inline void +instr_alu_and_exec(struct rte_swx_pipeline *p) +{ + struct thread *t = &p->threads[p->thread_id]; + struct instruction *ip = t->ip; + + TRACE("[Thread %2u] and\n", p->thread_id); + + /* Structs. */ + ALU(t, ip, &); + + /* Thread. */ + thread_ip_inc(p); +} + +static inline void +instr_alu_and_s_exec(struct rte_swx_pipeline *p) +{ + struct thread *t = &p->threads[p->thread_id]; + struct instruction *ip = t->ip; + + TRACE("[Thread %2u] and (s)\n", p->thread_id); + + /* Structs. */ + ALU_S(t, ip, &); + + /* Thread. */ + thread_ip_inc(p); +} + +static inline void +instr_alu_and_i_exec(struct rte_swx_pipeline *p) +{ + struct thread *t = &p->threads[p->thread_id]; + struct instruction *ip = t->ip; + + TRACE("[Thread %2u] and (i)\n", p->thread_id); + + /* Structs. */ + ALU_I(t, ip, &); + + /* Thread. */ + thread_ip_inc(p); +} + static inline void instr_alu_ckadd_field_exec(struct rte_swx_pipeline *p) { @@ -3617,6 +3719,14 @@ instr_translate(struct rte_swx_pipeline *p, instr, data); + if (!strcmp(tokens[tpos], "and")) + return instr_alu_and_translate(p, + action, + &tokens[tpos], + n_tokens - tpos, + instr, + data); + CHECK(0, EINVAL); } @@ -3793,6 +3903,10 @@ static instr_exec_t instruction_table[] = { [INSTR_ALU_CKADD_STRUCT] = instr_alu_ckadd_struct_exec, [INSTR_ALU_CKADD_STRUCT20] = instr_alu_ckadd_struct20_exec, [INSTR_ALU_CKSUB_FIELD] = instr_alu_cksub_field_exec, + + [INSTR_ALU_AND] = instr_alu_and_exec, + [INSTR_ALU_AND_S] = instr_alu_and_s_exec, + [INSTR_ALU_AND_I] = instr_alu_and_i_exec, }; static inline void -- 2.20.1