thunderbolt: Add KUnit tests for XDomain properties

This adds KUnit tests for parsing, formatting and copying of XDomain
properties.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>

diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c
index 464c2d3..4e1e7ae 100644 (file)
--- a/drivers/thunderbolt/test.c
+++ b/drivers/thunderbolt/test.c
@@ -1594,6 +1594,255 @@ static void tb_test_tunnel_port_on_path(struct kunit *test)
        tb_tunnel_free(dp_tunnel);
 }
 
+static const u32 root_directory[] = {
+       0x55584401,     /* "UXD" v1 */
+       0x00000018,     /* Root directory length */
+       0x76656e64,     /* "vend" */
+       0x6f726964,     /* "orid" */
+       0x76000001,     /* "v" R 1 */
+       0x00000a27,     /* Immediate value, ! Vendor ID */
+       0x76656e64,     /* "vend" */
+       0x6f726964,     /* "orid" */
+       0x74000003,     /* "t" R 3 */
+       0x0000001a,     /* Text leaf offset, (“Apple Inc.”) */
+       0x64657669,     /* "devi" */
+       0x63656964,     /* "ceid" */
+       0x76000001,     /* "v" R 1 */
+       0x0000000a,     /* Immediate value, ! Device ID */
+       0x64657669,     /* "devi" */
+       0x63656964,     /* "ceid" */
+       0x74000003,     /* "t" R 3 */
+       0x0000001d,     /* Text leaf offset, (“Macintosh”) */
+       0x64657669,     /* "devi" */
+       0x63657276,     /* "cerv" */
+       0x76000001,     /* "v" R 1 */
+       0x80000100,     /* Immediate value, Device Revision */
+       0x6e657477,     /* "netw" */
+       0x6f726b00,     /* "ork" */
+       0x44000014,     /* "D" R 20 */
+       0x00000021,     /* Directory data offset, (Network Directory) */
+       0x4170706c,     /* "Appl" */
+       0x6520496e,     /* "e In" */
+       0x632e0000,     /* "c." ! */
+       0x4d616369,     /* "Maci" */
+       0x6e746f73,     /* "ntos" */
+       0x68000000,     /* "h" */
+       0x00000000,     /* padding */
+       0xca8961c6,     /* Directory UUID, Network Directory */
+       0x9541ce1c,     /* Directory UUID, Network Directory */
+       0x5949b8bd,     /* Directory UUID, Network Directory */
+       0x4f5a5f2e,     /* Directory UUID, Network Directory */
+       0x70727463,     /* "prtc" */
+       0x69640000,     /* "id" */
+       0x76000001,     /* "v" R 1 */
+       0x00000001,     /* Immediate value, Network Protocol ID */
+       0x70727463,     /* "prtc" */
+       0x76657273,     /* "vers" */
+       0x76000001,     /* "v" R 1 */
+       0x00000001,     /* Immediate value, Network Protocol Version */
+       0x70727463,     /* "prtc" */
+       0x72657673,     /* "revs" */
+       0x76000001,     /* "v" R 1 */
+       0x00000001,     /* Immediate value, Network Protocol Revision */
+       0x70727463,     /* "prtc" */
+       0x73746e73,     /* "stns" */
+       0x76000001,     /* "v" R 1 */
+       0x00000000,     /* Immediate value, Network Protocol Settings */
+};
+
+static const uuid_t network_dir_uuid =
+       UUID_INIT(0xc66189ca, 0x1cce, 0x4195,
+                 0xbd, 0xb8, 0x49, 0x59, 0x2e, 0x5f, 0x5a, 0x4f);
+
+static void tb_test_property_parse(struct kunit *test)
+{
+       struct tb_property_dir *dir, *network_dir;
+       struct tb_property *p;
+
+       dir = tb_property_parse_dir(root_directory, ARRAY_SIZE(root_directory));
+       KUNIT_ASSERT_TRUE(test, dir != NULL);
+
+       p = tb_property_find(dir, "foo", TB_PROPERTY_TYPE_TEXT);
+       KUNIT_ASSERT_TRUE(test, !p);
+
+       p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_TEXT);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_STREQ(test, p->value.text, "Apple Inc.");
+
+       p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0xa27);
+
+       p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_TEXT);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_STREQ(test, p->value.text, "Macintosh");
+
+       p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0xa);
+
+       p = tb_property_find(dir, "missing", TB_PROPERTY_TYPE_DIRECTORY);
+       KUNIT_ASSERT_TRUE(test, !p);
+
+       p = tb_property_find(dir, "network", TB_PROPERTY_TYPE_DIRECTORY);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+
+       network_dir = p->value.dir;
+       KUNIT_EXPECT_TRUE(test, uuid_equal(network_dir->uuid, &network_dir_uuid));
+
+       p = tb_property_find(network_dir, "prtcid", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x1);
+
+       p = tb_property_find(network_dir, "prtcvers", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x1);
+
+       p = tb_property_find(network_dir, "prtcrevs", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x1);
+
+       p = tb_property_find(network_dir, "prtcstns", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_ASSERT_TRUE(test, p != NULL);
+       KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x0);
+
+       p = tb_property_find(network_dir, "deviceid", TB_PROPERTY_TYPE_VALUE);
+       KUNIT_EXPECT_TRUE(test, !p);
+       p = tb_property_find(network_dir, "deviceid", TB_PROPERTY_TYPE_TEXT);
+       KUNIT_EXPECT_TRUE(test, !p);
+
+       tb_property_free_dir(dir);
+}
+
+static void tb_test_property_format(struct kunit *test)
+{
+       struct tb_property_dir *dir;
+       ssize_t block_len;
+       u32 *block;
+       int ret, i;
+
+       dir = tb_property_parse_dir(root_directory, ARRAY_SIZE(root_directory));
+       KUNIT_ASSERT_TRUE(test, dir != NULL);
+
+       ret = tb_property_format_dir(dir, NULL, 0);
+       KUNIT_ASSERT_EQ(test, ret, (int)ARRAY_SIZE(root_directory));
+
+       block_len = ret;
+
+       block = kunit_kzalloc(test, block_len * sizeof(u32), GFP_KERNEL);
+       KUNIT_ASSERT_TRUE(test, block != NULL);
+
+       ret = tb_property_format_dir(dir, block, block_len);
+       KUNIT_EXPECT_EQ(test, ret, 0);
+
+       for (i = 0; i < ARRAY_SIZE(root_directory); i++)
+               KUNIT_EXPECT_EQ(test, root_directory[i], block[i]);
+
+       tb_property_free_dir(dir);
+}
+
+static void compare_dirs(struct kunit *test, struct tb_property_dir *d1,
+                        struct tb_property_dir *d2)
+{
+       struct tb_property *p1, *p2, *tmp;
+       int n1, n2, i;
+
+       if (d1->uuid) {
+               KUNIT_ASSERT_TRUE(test, d2->uuid != NULL);
+               KUNIT_ASSERT_TRUE(test, uuid_equal(d1->uuid, d2->uuid));
+       } else {
+               KUNIT_ASSERT_TRUE(test, d2->uuid == NULL);
+       }
+
+       n1 = 0;
+       tb_property_for_each(d1, tmp)
+               n1++;
+       KUNIT_ASSERT_NE(test, n1, 0);
+
+       n2 = 0;
+       tb_property_for_each(d2, tmp)
+               n2++;
+       KUNIT_ASSERT_NE(test, n2, 0);
+
+       KUNIT_ASSERT_EQ(test, n1, n2);
+
+       p1 = NULL;
+       p2 = NULL;
+       for (i = 0; i < n1; i++) {
+               p1 = tb_property_get_next(d1, p1);
+               KUNIT_ASSERT_TRUE(test, p1 != NULL);
+               p2 = tb_property_get_next(d2, p2);
+               KUNIT_ASSERT_TRUE(test, p2 != NULL);
+
+               KUNIT_ASSERT_STREQ(test, &p1->key[0], &p2->key[0]);
+               KUNIT_ASSERT_EQ(test, p1->type, p2->type);
+               KUNIT_ASSERT_EQ(test, p1->length, p2->length);
+
+               switch (p1->type) {
+               case TB_PROPERTY_TYPE_DIRECTORY:
+                       KUNIT_ASSERT_TRUE(test, p1->value.dir != NULL);
+                       KUNIT_ASSERT_TRUE(test, p2->value.dir != NULL);
+                       compare_dirs(test, p1->value.dir, p2->value.dir);
+                       break;
+
+               case TB_PROPERTY_TYPE_DATA:
+                       KUNIT_ASSERT_TRUE(test, p1->value.data != NULL);
+                       KUNIT_ASSERT_TRUE(test, p2->value.data != NULL);
+                       KUNIT_ASSERT_TRUE(test,
+                               !memcmp(p1->value.data, p2->value.data,
+                                       p1->length * 4)
+                       );
+                       break;
+
+               case TB_PROPERTY_TYPE_TEXT:
+                       KUNIT_ASSERT_TRUE(test, p1->value.text != NULL);
+                       KUNIT_ASSERT_TRUE(test, p2->value.text != NULL);
+                       KUNIT_ASSERT_STREQ(test, p1->value.text, p2->value.text);
+                       break;
+
+               case TB_PROPERTY_TYPE_VALUE:
+                       KUNIT_ASSERT_EQ(test, p1->value.immediate,
+                                       p2->value.immediate);
+                       break;
+               default:
+                       KUNIT_FAIL(test, "unexpected property type");
+                       break;
+               }
+       }
+}
+
+static void tb_test_property_copy(struct kunit *test)
+{
+       struct tb_property_dir *src, *dst;
+       u32 *block;
+       int ret, i;
+
+       src = tb_property_parse_dir(root_directory, ARRAY_SIZE(root_directory));
+       KUNIT_ASSERT_TRUE(test, src != NULL);
+
+       dst = tb_property_copy_dir(src);
+       KUNIT_ASSERT_TRUE(test, dst != NULL);
+
+       /* Compare the structures */
+       compare_dirs(test, src, dst);
+
+       /* Compare the resulting property block */
+       ret = tb_property_format_dir(dst, NULL, 0);
+       KUNIT_ASSERT_EQ(test, ret, (int)ARRAY_SIZE(root_directory));
+
+       block = kunit_kzalloc(test, sizeof(root_directory), GFP_KERNEL);
+       KUNIT_ASSERT_TRUE(test, block != NULL);
+
+       ret = tb_property_format_dir(dst, block, ARRAY_SIZE(root_directory));
+       KUNIT_EXPECT_TRUE(test, !ret);
+
+       for (i = 0; i < ARRAY_SIZE(root_directory); i++)
+               KUNIT_EXPECT_EQ(test, root_directory[i], block[i]);
+
+       tb_property_free_dir(dst);
+       tb_property_free_dir(src);
+}
+
 static struct kunit_case tb_test_cases[] = {
        KUNIT_CASE(tb_test_path_basic),
        KUNIT_CASE(tb_test_path_not_connected_walk),
@@ -1616,6 +1865,9 @@ static struct kunit_case tb_test_cases[] = {
        KUNIT_CASE(tb_test_tunnel_dp_max_length),
        KUNIT_CASE(tb_test_tunnel_port_on_path),
        KUNIT_CASE(tb_test_tunnel_usb3),
+       KUNIT_CASE(tb_test_property_parse),
+       KUNIT_CASE(tb_test_property_format),
+       KUNIT_CASE(tb_test_property_copy),
        { }
 };