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authorKonstantin Ananyev <konstantin.ananyev@intel.com>2018-11-08 12:36:44 +0000
committerThomas Monjalon <thomas@monjalon.net>2018-11-13 23:19:19 +0100
commit0aaec3760eeedf28209635229472cd898fa7a26f (patch)
treeaf8fa02a742cce14d62387f5e12905cf9c9bf336
parent95df7307a77de5d28b4c81151a8dcc100be8172c (diff)
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test/bpf: add immediate load
New test-case to cover (BPF_LD | BPF_IMM | EBPF_DW) instruction. Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
-rw-r--r--test/test/test_bpf.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/test/test/test_bpf.c b/test/test/test_bpf.c
index fa17c4f..1d50401 100644
--- a/test/test/test_bpf.c
+++ b/test/test/test_bpf.c
@@ -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[] = {
@@ -1727,6 +1821,20 @@ static const struct bpf_test tests[] = {
.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),
.prm = {