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test/bpf: add immediate load

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New test-case to cover (BPF_LD | BPF_IMM | EBPF_DW) instruction.

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This commit is contained in:
Konstantin Ananyev 2018-11-08 12:36:44 +00:00 committed by Thomas Monjalon
parent 95df7307a7
commit 0aaec3760e
1 changed files with 108 additions and 0 deletions
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108
test/test/test_bpf.c
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@ -48,6 +48,12 @@ struct dummy_vect8 {
#define TEST_JCC_3 5678
#define TEST_JCC_4 TEST_FILL_1
#define TEST_IMM_1 UINT64_MAX
#define TEST_IMM_2 ((uint64_t)INT64_MIN)
#define TEST_IMM_3 ((uint64_t)INT64_MAX + INT32_MAX)
#define TEST_IMM_4 ((uint64_t)UINT32_MAX)
#define TEST_IMM_5 ((uint64_t)UINT32_MAX + 1)
struct bpf_test {
const char *name;
size_t arg_sz;
@ -268,6 +274,94 @@ test_load1_check(uint64_t rc, const void *arg)
return cmp_res(__func__, v, rc, dft, dft, sizeof(*dft));
}
/* load immediate test-cases */
static const struct ebpf_insn test_ldimm1_prog[] = {
{
.code = (BPF_LD | BPF_IMM | EBPF_DW),
.dst_reg = EBPF_REG_0,
.imm = (uint32_t)TEST_IMM_1,
},
{
.imm = TEST_IMM_1 >> 32,
},
{
.code = (BPF_LD | BPF_IMM | EBPF_DW),
.dst_reg = EBPF_REG_3,
.imm = (uint32_t)TEST_IMM_2,
},
{
.imm = TEST_IMM_2 >> 32,
},
{
.code = (BPF_LD | BPF_IMM | EBPF_DW),
.dst_reg = EBPF_REG_5,
.imm = (uint32_t)TEST_IMM_3,
},
{
.imm = TEST_IMM_3 >> 32,
},
{
.code = (BPF_LD | BPF_IMM | EBPF_DW),
.dst_reg = EBPF_REG_7,
.imm = (uint32_t)TEST_IMM_4,
},
{
.imm = TEST_IMM_4 >> 32,
},
{
.code = (BPF_LD | BPF_IMM | EBPF_DW),
.dst_reg = EBPF_REG_9,
.imm = (uint32_t)TEST_IMM_5,
},
{
.imm = TEST_IMM_5 >> 32,
},
/* return sum */
{
.code = (EBPF_ALU64 | BPF_ADD | BPF_X),
.dst_reg = EBPF_REG_0,
.src_reg = EBPF_REG_3,
},
{
.code = (EBPF_ALU64 | BPF_ADD | BPF_X),
.dst_reg = EBPF_REG_0,
.src_reg = EBPF_REG_5,
},
{
.code = (EBPF_ALU64 | BPF_ADD | BPF_X),
.dst_reg = EBPF_REG_0,
.src_reg = EBPF_REG_7,
},
{
.code = (EBPF_ALU64 | BPF_ADD | BPF_X),
.dst_reg = EBPF_REG_0,
.src_reg = EBPF_REG_9,
},
{
.code = (BPF_JMP | EBPF_EXIT),
},
};
static int
test_ldimm1_check(uint64_t rc, const void *arg)
{
uint64_t v1, v2;
v1 = TEST_IMM_1;
v2 = TEST_IMM_2;
v1 += v2;
v2 = TEST_IMM_3;
v1 += v2;
v2 = TEST_IMM_4;
v1 += v2;
v2 = TEST_IMM_5;
v1 += v2;
return cmp_res(__func__, v1, rc, arg, arg, 0);
}
/* alu mul test-cases */
static const struct ebpf_insn test_mul1_prog[] = {
@ -1726,6 +1820,20 @@ static const struct bpf_test tests[] = {
.prepare = test_load1_prepare,
.check_result = test_load1_check,
},
{
.name = "test_ldimm1",
.arg_sz = sizeof(struct dummy_offset),
.prm = {
.ins = test_ldimm1_prog,
.nb_ins = RTE_DIM(test_ldimm1_prog),
.prog_arg = {
.type = RTE_BPF_ARG_PTR,
.size = sizeof(struct dummy_offset),
},
},
.prepare = test_store1_prepare,
.check_result = test_ldimm1_check,
},
{
.name = "test_mul1",
.arg_sz = sizeof(struct dummy_vect8),