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author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-01-08 15:32:19 +0100 |
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committer | Mika Westerberg <mika.westerberg@linux.intel.com> | 2021-03-18 16:25:32 +0100 |
commit | 5adab6cc45c448dd329fceec9aca4f4d4c0559c5 (patch) | |
tree | 82edb2a1c42540f682975de8d3851ffc0a73292b /drivers/thunderbolt/test.c | |
parent | thunderbolt: Add KUnit tests for XDomain properties (diff) | |
download | linux-5adab6cc45c448dd329fceec9aca4f4d4c0559c5.tar.xz linux-5adab6cc45c448dd329fceec9aca4f4d4c0559c5.zip |
thunderbolt: Add KUnit tests for DMA tunnels
Add a couple of tests to check DMA tunneling functionality.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers/thunderbolt/test.c')
-rw-r--r-- | drivers/thunderbolt/test.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c index 4e1e7ae2d90d..5ff5a03bc9ce 100644 --- a/drivers/thunderbolt/test.c +++ b/drivers/thunderbolt/test.c @@ -119,6 +119,7 @@ static struct tb_switch *alloc_host(struct kunit *test) sw->ports[7].config.type = TB_TYPE_NHI; sw->ports[7].config.max_in_hop_id = 11; sw->ports[7].config.max_out_hop_id = 11; + sw->ports[7].config.nfc_credits = 0x41800000; sw->ports[8].config.type = TB_TYPE_PCIE_DOWN; sw->ports[8].config.max_in_hop_id = 8; @@ -1594,6 +1595,240 @@ static void tb_test_tunnel_port_on_path(struct kunit *test) tb_tunnel_free(dp_tunnel); } +static void tb_test_tunnel_dma(struct kunit *test) +{ + struct tb_port *nhi, *port; + struct tb_tunnel *tunnel; + struct tb_switch *host; + + /* + * Create DMA tunnel from NHI to port 1 and back. + * + * [Host 1] + * 1 ^ In HopID 1 -> Out HopID 8 + * | + * v In HopID 8 -> Out HopID 1 + * ............ Domain border + * | + * [Host 2] + */ + host = alloc_host(test); + nhi = &host->ports[7]; + port = &host->ports[1]; + + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); + /* RX path */ + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 1); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, port); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 8); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, nhi); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].next_hop_index, 1); + /* TX path */ + KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 1); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, nhi); + KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[0].in_hop_index, 1); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].out_port, port); + KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[0].next_hop_index, 8); + + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dma_rx(struct kunit *test) +{ + struct tb_port *nhi, *port; + struct tb_tunnel *tunnel; + struct tb_switch *host; + + /* + * Create DMA RX tunnel from port 1 to NHI. + * + * [Host 1] + * 1 ^ + * | + * | In HopID 15 -> Out HopID 2 + * ............ Domain border + * | + * [Host 2] + */ + host = alloc_host(test); + nhi = &host->ports[7]; + port = &host->ports[1]; + + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, -1, -1, 15, 2); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)1); + /* RX path */ + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 1); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, port); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 15); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, nhi); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].next_hop_index, 2); + + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dma_tx(struct kunit *test) +{ + struct tb_port *nhi, *port; + struct tb_tunnel *tunnel; + struct tb_switch *host; + + /* + * Create DMA TX tunnel from NHI to port 1. + * + * [Host 1] + * 1 | In HopID 2 -> Out HopID 15 + * | + * v + * ............ Domain border + * | + * [Host 2] + */ + host = alloc_host(test); + nhi = &host->ports[7]; + port = &host->ports[1]; + + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 2, -1, -1); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)1); + /* TX path */ + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 1); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, nhi); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 2); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, port); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].next_hop_index, 15); + + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dma_chain(struct kunit *test) +{ + struct tb_switch *host, *dev1, *dev2; + struct tb_port *nhi, *port; + struct tb_tunnel *tunnel; + + /* + * Create DMA tunnel from NHI to Device #2 port 3 and back. + * + * [Host 1] + * 1 ^ In HopID 1 -> Out HopID x + * | + * 1 | In HopID x -> Out HopID 1 + * [Device #1] + * 7 \ + * 1 \ + * [Device #2] + * 3 | In HopID x -> Out HopID 8 + * | + * v In HopID 8 -> Out HopID x + * ............ Domain border + * | + * [Host 2] + */ + host = alloc_host(test); + dev1 = alloc_dev_default(test, host, 0x1, true); + dev2 = alloc_dev_default(test, dev1, 0x701, true); + + nhi = &host->ports[7]; + port = &dev2->ports[3]; + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA); + KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi); + KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port); + KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); + /* RX path */ + KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 3); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, port); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 8); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, + &dev2->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[1].in_port, + &dev1->ports[7]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[1].out_port, + &dev1->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[2].in_port, + &host->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[2].out_port, nhi); + KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[2].next_hop_index, 1); + /* TX path */ + KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 3); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, nhi); + KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[0].in_hop_index, 1); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[1].in_port, + &dev1->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[1].out_port, + &dev1->ports[7]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[2].in_port, + &dev2->ports[1]); + KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[2].out_port, port); + KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[2].next_hop_index, 8); + + tb_tunnel_free(tunnel); +} + +static void tb_test_tunnel_dma_match(struct kunit *test) +{ + struct tb_port *nhi, *port; + struct tb_tunnel *tunnel; + struct tb_switch *host; + + host = alloc_host(test); + nhi = &host->ports[7]; + port = &host->ports[1]; + + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 1, 15, 1); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, 1, 15, 1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 8, 1, 15, 1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, 1, -1, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, -1, -1, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, 1, -1, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, 1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, -1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 8, -1, 8, -1)); + + tb_tunnel_free(tunnel); + + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 1, -1, -1); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, 1, -1, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, -1, -1, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, 1, -1, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, -1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 15, 1, 15, 1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 15, 11, -1, -1)); + + tb_tunnel_free(tunnel); + + tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, -1, -1, 15, 11); + KUNIT_ASSERT_TRUE(test, tunnel != NULL); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 11)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, -1)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, 11)); + KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, -1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 1)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, -1, -1, 10, 11)); + KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 15, 11, -1, -1)); + + tb_tunnel_free(tunnel); +} + static const u32 root_directory[] = { 0x55584401, /* "UXD" v1 */ 0x00000018, /* Root directory length */ @@ -1865,6 +2100,11 @@ 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_tunnel_dma), + KUNIT_CASE(tb_test_tunnel_dma_rx), + KUNIT_CASE(tb_test_tunnel_dma_tx), + KUNIT_CASE(tb_test_tunnel_dma_chain), + KUNIT_CASE(tb_test_tunnel_dma_match), KUNIT_CASE(tb_test_property_parse), KUNIT_CASE(tb_test_property_format), KUNIT_CASE(tb_test_property_copy), |