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>
This commit is contained in:
Mika Westerberg
parent
15a4c7e8f9
commit
5adab6cc45
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@ -119,6 +119,7 @@ static struct tb_switch *alloc_host(struct kunit *test)
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sw->ports[7].config.type = TB_TYPE_NHI;
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sw->ports[7].config.max_in_hop_id = 11;
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sw->ports[7].config.max_out_hop_id = 11;
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sw->ports[7].config.nfc_credits = 0x41800000;
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sw->ports[8].config.type = TB_TYPE_PCIE_DOWN;
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sw->ports[8].config.max_in_hop_id = 8;
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@ -1594,6 +1595,240 @@ static void tb_test_tunnel_port_on_path(struct kunit *test)
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tb_tunnel_free(dp_tunnel);
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}
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static void tb_test_tunnel_dma(struct kunit *test)
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{
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struct tb_port *nhi, *port;
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struct tb_tunnel *tunnel;
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struct tb_switch *host;
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/*
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* Create DMA tunnel from NHI to port 1 and back.
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*
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* [Host 1]
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* 1 ^ In HopID 1 -> Out HopID 8
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* |
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* v In HopID 8 -> Out HopID 1
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* ............ Domain border
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* |
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* [Host 2]
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*/
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host = alloc_host(test);
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nhi = &host->ports[7];
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port = &host->ports[1];
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port);
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KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2);
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/* RX path */
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KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 1);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, port);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 8);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, nhi);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].next_hop_index, 1);
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/* TX path */
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KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 1);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, nhi);
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KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[0].in_hop_index, 1);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].out_port, port);
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KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[0].next_hop_index, 8);
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tb_tunnel_free(tunnel);
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}
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static void tb_test_tunnel_dma_rx(struct kunit *test)
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{
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struct tb_port *nhi, *port;
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struct tb_tunnel *tunnel;
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struct tb_switch *host;
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/*
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* Create DMA RX tunnel from port 1 to NHI.
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*
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* [Host 1]
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* 1 ^
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* |
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* | In HopID 15 -> Out HopID 2
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* ............ Domain border
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* |
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* [Host 2]
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*/
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host = alloc_host(test);
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nhi = &host->ports[7];
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port = &host->ports[1];
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, -1, -1, 15, 2);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port);
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KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)1);
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/* RX path */
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KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 1);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, port);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 15);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, nhi);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].next_hop_index, 2);
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tb_tunnel_free(tunnel);
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}
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static void tb_test_tunnel_dma_tx(struct kunit *test)
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{
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struct tb_port *nhi, *port;
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struct tb_tunnel *tunnel;
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struct tb_switch *host;
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/*
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* Create DMA TX tunnel from NHI to port 1.
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*
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* [Host 1]
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* 1 | In HopID 2 -> Out HopID 15
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* |
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* v
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* ............ Domain border
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* |
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* [Host 2]
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*/
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host = alloc_host(test);
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nhi = &host->ports[7];
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port = &host->ports[1];
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 2, -1, -1);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port);
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KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)1);
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/* TX path */
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KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 1);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, nhi);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 2);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port, port);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].next_hop_index, 15);
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tb_tunnel_free(tunnel);
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}
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static void tb_test_tunnel_dma_chain(struct kunit *test)
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{
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struct tb_switch *host, *dev1, *dev2;
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struct tb_port *nhi, *port;
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struct tb_tunnel *tunnel;
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/*
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* Create DMA tunnel from NHI to Device #2 port 3 and back.
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*
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* [Host 1]
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* 1 ^ In HopID 1 -> Out HopID x
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* |
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* 1 | In HopID x -> Out HopID 1
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* [Device #1]
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* 7 \
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* 1 \
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* [Device #2]
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* 3 | In HopID x -> Out HopID 8
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* |
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* v In HopID 8 -> Out HopID x
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* ............ Domain border
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* |
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* [Host 2]
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*/
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host = alloc_host(test);
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dev1 = alloc_dev_default(test, host, 0x1, true);
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dev2 = alloc_dev_default(test, dev1, 0x701, true);
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nhi = &host->ports[7];
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port = &dev2->ports[3];
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->src_port, nhi);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->dst_port, port);
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KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2);
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/* RX path */
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KUNIT_ASSERT_EQ(test, tunnel->paths[0]->path_length, 3);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].in_port, port);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[0].in_hop_index, 8);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[0].out_port,
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&dev2->ports[1]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[1].in_port,
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&dev1->ports[7]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[1].out_port,
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&dev1->ports[1]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[2].in_port,
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&host->ports[1]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[0]->hops[2].out_port, nhi);
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KUNIT_EXPECT_EQ(test, tunnel->paths[0]->hops[2].next_hop_index, 1);
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/* TX path */
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KUNIT_ASSERT_EQ(test, tunnel->paths[1]->path_length, 3);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[0].in_port, nhi);
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KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[0].in_hop_index, 1);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[1].in_port,
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&dev1->ports[1]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[1].out_port,
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&dev1->ports[7]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[2].in_port,
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&dev2->ports[1]);
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KUNIT_EXPECT_PTR_EQ(test, tunnel->paths[1]->hops[2].out_port, port);
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KUNIT_EXPECT_EQ(test, tunnel->paths[1]->hops[2].next_hop_index, 8);
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tb_tunnel_free(tunnel);
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}
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static void tb_test_tunnel_dma_match(struct kunit *test)
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{
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struct tb_port *nhi, *port;
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struct tb_tunnel *tunnel;
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struct tb_switch *host;
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host = alloc_host(test);
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nhi = &host->ports[7];
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port = &host->ports[1];
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 1, 15, 1);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, 1, 15, 1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 8, 1, 15, 1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, 1, -1, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, -1, -1, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, 1, -1, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, 1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, -1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 8, -1, 8, -1));
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tb_tunnel_free(tunnel);
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 1, -1, -1);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, 1, -1, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, 15, -1, -1, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, 1, -1, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, -1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 15, 1, 15, 1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 15, 11, -1, -1));
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tb_tunnel_free(tunnel);
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tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, -1, -1, 15, 11);
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KUNIT_ASSERT_TRUE(test, tunnel != NULL);
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 11));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, -1));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, 11));
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KUNIT_ASSERT_TRUE(test, tb_tunnel_match_dma(tunnel, -1, -1, -1, -1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, -1, -1, 15, 1));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, -1, -1, 10, 11));
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KUNIT_ASSERT_FALSE(test, tb_tunnel_match_dma(tunnel, 15, 11, -1, -1));
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tb_tunnel_free(tunnel);
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}
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static const u32 root_directory[] = {
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0x55584401, /* "UXD" v1 */
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0x00000018, /* Root directory length */
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@ -1865,6 +2100,11 @@ static struct kunit_case tb_test_cases[] = {
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KUNIT_CASE(tb_test_tunnel_dp_max_length),
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KUNIT_CASE(tb_test_tunnel_port_on_path),
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KUNIT_CASE(tb_test_tunnel_usb3),
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KUNIT_CASE(tb_test_tunnel_dma),
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KUNIT_CASE(tb_test_tunnel_dma_rx),
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KUNIT_CASE(tb_test_tunnel_dma_tx),
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KUNIT_CASE(tb_test_tunnel_dma_chain),
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KUNIT_CASE(tb_test_tunnel_dma_match),
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KUNIT_CASE(tb_test_property_parse),
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KUNIT_CASE(tb_test_property_format),
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KUNIT_CASE(tb_test_property_copy),
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