diff options
| -rw-r--r-- | drivers/thunderbolt/test.c | 398 |
1 files changed, 398 insertions, 0 deletions
diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c index 9e60bab46d34..acb8b6256847 100644 --- a/drivers/thunderbolt/test.c +++ b/drivers/thunderbolt/test.c @@ -10,6 +10,7 @@ #include <linux/idr.h> #include "tb.h" +#include "tunnel.h" static int __ida_init(struct kunit_resource *res, void *context) { @@ -1203,6 +1204,396 @@ static void tb_test_path_mixed_chain_reverse(struct kunit *test) tb_path_free(path); } +static void tb_test_tunnel_pcie(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2; + struct tb_tunnel *tunnel1, *tunnel2; + struct tb_port *down, *up; + + /* + * Create PCIe tunnel between host and two devices. + * + * [Host] + * 1 | + * 1 | + * [Device #1] + * 5 | + * 1 | + * [Device #2] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x1, true); + dev2 = alloc_dev_default(test, dev1, 0x501, true); + + down = &host->ports[8]; + up = &dev1->ports[9]; + tunnel1 = tb_tunnel_alloc_pci(NULL, up, down); + KUNIT_ASSERT_TRUE(test, tunnel1 != NULL); + KUNIT_EXPECT_EQ(test, tunnel1->type, (enum tb_tunnel_type)TB_TUNNEL_PCI); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->src_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->dst_port, up); + KUNIT_ASSERT_EQ(test, tunnel1->npaths, (size_t)2); + KUNIT_ASSERT_EQ(test, tunnel1->paths[0]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[0]->hops[0].in_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[0]->hops[1].out_port, up); + KUNIT_ASSERT_EQ(test, tunnel1->paths[1]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[1]->hops[0].in_port, up); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[1]->hops[1].out_port, down); + + down = &dev1->ports[10]; + up = &dev2->ports[9]; + tunnel2 = tb_tunnel_alloc_pci(NULL, up, down); + KUNIT_ASSERT_TRUE(test, tunnel2 != NULL); + KUNIT_EXPECT_EQ(test, tunnel2->type, (enum tb_tunnel_type)TB_TUNNEL_PCI); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->src_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->dst_port, up); + KUNIT_ASSERT_EQ(test, tunnel2->npaths, (size_t)2); + KUNIT_ASSERT_EQ(test, tunnel2->paths[0]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[0]->hops[0].in_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[0]->hops[1].out_port, up); + KUNIT_ASSERT_EQ(test, tunnel2->paths[1]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[1]->hops[0].in_port, up); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[1]->hops[1].out_port, down); + + tb_tunnel_free(tunnel2); + tb_tunnel_free(tunnel1); +} + +static void tb_test_tunnel_dp(struct kunit *test) +{ + struct tb_switch *host, *dev; + struct tb_port *in, *out; + struct tb_tunnel *tunnel; + + /* + * Create DP tunnel between Host and Device + * + * [Host] + * 1 | + * 1 | + * [Device] + */ + host = alloc_host(test); + dev = alloc_dev_default(test, host, 0x3, true); + + in = &host->ports[5]; + out = &dev->ports[13]; + + tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, out); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)3); + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[1].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[1].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[2]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[0].in_port, out); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[1].out_port, in); + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dp_chain(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev4; + struct tb_port *in, *out; + struct tb_tunnel *tunnel; + + /* + * Create DP tunnel from Host DP IN to Device #4 DP OUT. + * + * [Host] + * 1 | + * 1 | + * [Device #1] + * 3 / | 5 \ 7 + * 1 / | \ 1 + * [Device #2] | [Device #4] + * | 1 + * [Device #3] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x1, true); + alloc_dev_default(test, dev1, 0x301, true); + alloc_dev_default(test, dev1, 0x501, true); + dev4 = alloc_dev_default(test, dev1, 0x701, true); + + in = &host->ports[5]; + out = &dev4->ports[14]; + + tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, out); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)3); + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 3); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[2].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 3); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[2].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[2]->path_length, 3); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[0].in_port, out); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[2].out_port, in); + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dp_tree(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2, *dev3, *dev5; + struct tb_port *in, *out; + struct tb_tunnel *tunnel; + + /* + * Create DP tunnel from Device #2 DP IN to Device #5 DP OUT. + * + * [Host] + * 3 | + * 1 | + * [Device #1] + * 3 / | 5 \ 7 + * 1 / | \ 1 + * [Device #2] | [Device #4] + * | 1 + * [Device #3] + * | 5 + * | 1 + * [Device #5] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x3, true); + dev2 = alloc_dev_with_dpin(test, dev1, 0x303, true); + dev3 = alloc_dev_default(test, dev1, 0x503, true); + alloc_dev_default(test, dev1, 0x703, true); + dev5 = alloc_dev_default(test, dev3, 0x50503, true); + + in = &dev2->ports[13]; + out = &dev5->ports[13]; + + tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, out); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)3); + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 4); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[3].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 4); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[3].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[2]->path_length, 4); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[0].in_port, out); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[3].out_port, in); + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dp_max_length(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2, *dev3, *dev4, *dev5, *dev6; + struct tb_switch *dev7, *dev8, *dev9, *dev10, *dev11, *dev12; + struct tb_port *in, *out; + struct tb_tunnel *tunnel; + + /* + * Creates DP tunnel from Device #6 to Device #12. + * + * [Host] + * 1 / \ 3 + * 1 / \ 1 + * [Device #1] [Device #7] + * 3 | | 3 + * 1 | | 1 + * [Device #2] [Device #8] + * 3 | | 3 + * 1 | | 1 + * [Device #3] [Device #9] + * 3 | | 3 + * 1 | | 1 + * [Device #4] [Device #10] + * 3 | | 3 + * 1 | | 1 + * [Device #5] [Device #11] + * 3 | | 3 + * 1 | | 1 + * [Device #6] [Device #12] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x1, true); + dev2 = alloc_dev_default(test, dev1, 0x301, true); + dev3 = alloc_dev_default(test, dev2, 0x30301, true); + dev4 = alloc_dev_default(test, dev3, 0x3030301, true); + dev5 = alloc_dev_default(test, dev4, 0x303030301, true); + dev6 = alloc_dev_with_dpin(test, dev5, 0x30303030301, true); + dev7 = alloc_dev_default(test, host, 0x3, true); + dev8 = alloc_dev_default(test, dev7, 0x303, true); + dev9 = alloc_dev_default(test, dev8, 0x30303, true); + dev10 = alloc_dev_default(test, dev9, 0x3030303, true); + dev11 = alloc_dev_default(test, dev10, 0x303030303, true); + dev12 = alloc_dev_default(test, dev11, 0x30303030303, true); + + in = &dev6->ports[13]; + out = &dev12->ports[13]; + + tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, out); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)3); + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 13); + /* First hop */ + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, in); + /* Middle */ + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[6].in_port, + &host->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[6].out_port, + &host->ports[3]); + /* Last */ + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[12].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 13); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, in); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[6].in_port, + &host->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[6].out_port, + &host->ports[3]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[12].out_port, out); + KUNIT_ASSERT_EQ(test, tunnel->paths[2]->path_length, 13); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[0].in_port, out); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[6].in_port, + &host->ports[3]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[6].out_port, + &host->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[2]->hops[12].out_port, in); + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_usb3(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2; + struct tb_tunnel *tunnel1, *tunnel2; + struct tb_port *down, *up; + + /* + * Create USB3 tunnel between host and two devices. + * + * [Host] + * 1 | + * 1 | + * [Device #1] + * \ 7 + * \ 1 + * [Device #2] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x1, true); + dev2 = alloc_dev_default(test, dev1, 0x701, true); + + down = &host->ports[12]; + up = &dev1->ports[16]; + tunnel1 = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel1 != NULL); + KUNIT_EXPECT_EQ(test, tunnel1->type, (enum tb_tunnel_type)TB_TUNNEL_USB3); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->src_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->dst_port, up); + KUNIT_ASSERT_EQ(test, tunnel1->npaths, (size_t)2); + KUNIT_ASSERT_EQ(test, tunnel1->paths[0]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[0]->hops[0].in_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[0]->hops[1].out_port, up); + KUNIT_ASSERT_EQ(test, tunnel1->paths[1]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[1]->hops[0].in_port, up); + KUNIT_EXPECT_PTR_EQ(test, tunnel1->paths[1]->hops[1].out_port, down); + + down = &dev1->ports[17]; + up = &dev2->ports[16]; + tunnel2 = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0); + KUNIT_ASSERT_TRUE(test, tunnel2 != NULL); + KUNIT_EXPECT_EQ(test, tunnel2->type, (enum tb_tunnel_type)TB_TUNNEL_USB3); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->src_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->dst_port, up); + KUNIT_ASSERT_EQ(test, tunnel2->npaths, (size_t)2); + KUNIT_ASSERT_EQ(test, tunnel2->paths[0]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[0]->hops[0].in_port, down); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[0]->hops[1].out_port, up); + KUNIT_ASSERT_EQ(test, tunnel2->paths[1]->path_length, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[1]->hops[0].in_port, up); + KUNIT_EXPECT_PTR_EQ(test, tunnel2->paths[1]->hops[1].out_port, down); + + tb_tunnel_free(tunnel2); + tb_tunnel_free(tunnel1); +} + +static void tb_test_tunnel_port_on_path(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2, *dev3, *dev4, *dev5; + struct tb_port *in, *out, *port; + struct tb_tunnel *dp_tunnel; + + /* + * [Host] + * 3 | + * 1 | + * [Device #1] + * 3 / | 5 \ 7 + * 1 / | \ 1 + * [Device #2] | [Device #4] + * | 1 + * [Device #3] + * | 5 + * | 1 + * [Device #5] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x3, true); + dev2 = alloc_dev_with_dpin(test, dev1, 0x303, true); + dev3 = alloc_dev_default(test, dev1, 0x503, true); + dev4 = alloc_dev_default(test, dev1, 0x703, true); + dev5 = alloc_dev_default(test, dev3, 0x50503, true); + + in = &dev2->ports[13]; + out = &dev5->ports[13]; + + dp_tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0); + KUNIT_ASSERT_TRUE(test, dp_tunnel != NULL); + + KUNIT_EXPECT_TRUE(test, tb_tunnel_port_on_path(dp_tunnel, in)); + KUNIT_EXPECT_TRUE(test, tb_tunnel_port_on_path(dp_tunnel, out)); + + port = &host->ports[8]; + KUNIT_EXPECT_FALSE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &host->ports[3]; + KUNIT_EXPECT_FALSE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev1->ports[1]; + KUNIT_EXPECT_FALSE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev1->ports[3]; + KUNIT_EXPECT_TRUE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev1->ports[5]; + KUNIT_EXPECT_TRUE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev1->ports[7]; + KUNIT_EXPECT_FALSE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev3->ports[1]; + KUNIT_EXPECT_TRUE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev5->ports[1]; + KUNIT_EXPECT_TRUE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + port = &dev4->ports[1]; + KUNIT_EXPECT_FALSE(test, tb_tunnel_port_on_path(dp_tunnel, port)); + + tb_tunnel_free(dp_tunnel); +} + static struct kunit_case tb_test_cases[] = { KUNIT_CASE(tb_test_path_basic), KUNIT_CASE(tb_test_path_not_connected_walk), @@ -1218,6 +1609,13 @@ static struct kunit_case tb_test_cases[] = { KUNIT_CASE(tb_test_path_not_bonded_lane1_chain_reverse), KUNIT_CASE(tb_test_path_mixed_chain), KUNIT_CASE(tb_test_path_mixed_chain_reverse), + KUNIT_CASE(tb_test_tunnel_pcie), + KUNIT_CASE(tb_test_tunnel_dp), + KUNIT_CASE(tb_test_tunnel_dp_chain), + KUNIT_CASE(tb_test_tunnel_dp_tree), + KUNIT_CASE(tb_test_tunnel_dp_max_length), + KUNIT_CASE(tb_test_tunnel_port_on_path), + KUNIT_CASE(tb_test_tunnel_usb3), { } }; 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