| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Mika Westerberg | 19038 | 94.87% | 7 | 53.85% |
| Gil Fine | 485 | 2.42% | 1 | 7.69% |
| Linus Torvalds | 385 | 1.92% | 1 | 7.69% |
| David Gow | 91 | 0.45% | 2 | 15.38% |
| Ricardo Ribalda Delgado | 67 | 0.33% | 1 | 7.69% |
| Stephen Rothwell | 2 | 0.01% | 1 | 7.69% |
| Total | 20068 | 13 |
// SPDX-License-Identifier: GPL-2.0 /* * KUnit tests * * Copyright (C) 2020, Intel Corporation * Author: Mika Westerberg <mika.westerberg@linux.intel.com> */ #include <kunit/test.h> #include <linux/idr.h> #include "tb.h" #include "tunnel.h" static int __ida_init(struct kunit_resource *res, void *context) { struct ida *ida = context; ida_init(ida); res->data = ida; return 0; } static void __ida_destroy(struct kunit_resource *res) { struct ida *ida = res->data; ida_destroy(ida); } static void kunit_ida_init(struct kunit *test, struct ida *ida) { kunit_alloc_resource(test, __ida_init, __ida_destroy, GFP_KERNEL, ida); } static struct tb_switch *alloc_switch(struct kunit *test, u64 route, u8 upstream_port, u8 max_port_number) { struct tb_switch *sw; size_t size; int i; sw = kunit_kzalloc(test, sizeof(*sw), GFP_KERNEL); if (!sw) return NULL; sw->config.upstream_port_number = upstream_port; sw->config.depth = tb_route_length(route); sw->config.route_hi = upper_32_bits(route); sw->config.route_lo = lower_32_bits(route); sw->config.enabled = 0; sw->config.max_port_number = max_port_number; size = (sw->config.max_port_number + 1) * sizeof(*sw->ports); sw->ports = kunit_kzalloc(test, size, GFP_KERNEL); if (!sw->ports) return NULL; for (i = 0; i <= sw->config.max_port_number; i++) { sw->ports[i].sw = sw; sw->ports[i].port = i; sw->ports[i].config.port_number = i; if (i) { kunit_ida_init(test, &sw->ports[i].in_hopids); kunit_ida_init(test, &sw->ports[i].out_hopids); } } return sw; } static struct tb_switch *alloc_host(struct kunit *test) { struct tb_switch *sw; sw = alloc_switch(test, 0, 7, 13); if (!sw) return NULL; sw->config.vendor_id = 0x8086; sw->config.device_id = 0x9a1b; sw->ports[0].config.type = TB_TYPE_PORT; sw->ports[0].config.max_in_hop_id = 7; sw->ports[0].config.max_out_hop_id = 7; sw->ports[1].config.type = TB_TYPE_PORT; sw->ports[1].config.max_in_hop_id = 19; sw->ports[1].config.max_out_hop_id = 19; sw->ports[1].total_credits = 60; sw->ports[1].ctl_credits = 2; sw->ports[1].dual_link_port = &sw->ports[2]; sw->ports[2].config.type = TB_TYPE_PORT; sw->ports[2].config.max_in_hop_id = 19; sw->ports[2].config.max_out_hop_id = 19; sw->ports[2].total_credits = 60; sw->ports[2].ctl_credits = 2; sw->ports[2].dual_link_port = &sw->ports[1]; sw->ports[2].link_nr = 1; sw->ports[3].config.type = TB_TYPE_PORT; sw->ports[3].config.max_in_hop_id = 19; sw->ports[3].config.max_out_hop_id = 19; sw->ports[3].total_credits = 60; sw->ports[3].ctl_credits = 2; sw->ports[3].dual_link_port = &sw->ports[4]; sw->ports[4].config.type = TB_TYPE_PORT; sw->ports[4].config.max_in_hop_id = 19; sw->ports[4].config.max_out_hop_id = 19; sw->ports[4].total_credits = 60; sw->ports[4].ctl_credits = 2; sw->ports[4].dual_link_port = &sw->ports[3]; sw->ports[4].link_nr = 1; sw->ports[5].config.type = TB_TYPE_DP_HDMI_IN; sw->ports[5].config.max_in_hop_id = 9; sw->ports[5].config.max_out_hop_id = 9; sw->ports[5].cap_adap = -1; sw->ports[6].config.type = TB_TYPE_DP_HDMI_IN; sw->ports[6].config.max_in_hop_id = 9; sw->ports[6].config.max_out_hop_id = 9; sw->ports[6].cap_adap = -1; 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; sw->ports[8].config.max_out_hop_id = 8; sw->ports[9].config.type = TB_TYPE_PCIE_DOWN; sw->ports[9].config.max_in_hop_id = 8; sw->ports[9].config.max_out_hop_id = 8; sw->ports[10].disabled = true; sw->ports[11].disabled = true; sw->ports[12].config.type = TB_TYPE_USB3_DOWN; sw->ports[12].config.max_in_hop_id = 8; sw->ports[12].config.max_out_hop_id = 8; sw->ports[13].config.type = TB_TYPE_USB3_DOWN; sw->ports[13].config.max_in_hop_id = 8; sw->ports[13].config.max_out_hop_id = 8; return sw; } static struct tb_switch *alloc_host_usb4(struct kunit *test) { struct tb_switch *sw; sw = alloc_host(test); if (!sw) return NULL; sw->generation = 4; sw->credit_allocation = true; sw->max_usb3_credits = 32; sw->min_dp_aux_credits = 1; sw->min_dp_main_credits = 0; sw->max_pcie_credits = 64; sw->max_dma_credits = 14; return sw; } static struct tb_switch *alloc_dev_default(struct kunit *test, struct tb_switch *parent, u64 route, bool bonded) { struct tb_port *port, *upstream_port; struct tb_switch *sw; sw = alloc_switch(test, route, 1, 19); if (!sw) return NULL; sw->config.vendor_id = 0x8086; sw->config.device_id = 0x15ef; sw->ports[0].config.type = TB_TYPE_PORT; sw->ports[0].config.max_in_hop_id = 8; sw->ports[0].config.max_out_hop_id = 8; sw->ports[1].config.type = TB_TYPE_PORT; sw->ports[1].config.max_in_hop_id = 19; sw->ports[1].config.max_out_hop_id = 19; sw->ports[1].total_credits = 60; sw->ports[1].ctl_credits = 2; sw->ports[1].dual_link_port = &sw->ports[2]; sw->ports[2].config.type = TB_TYPE_PORT; sw->ports[2].config.max_in_hop_id = 19; sw->ports[2].config.max_out_hop_id = 19; sw->ports[2].total_credits = 60; sw->ports[2].ctl_credits = 2; sw->ports[2].dual_link_port = &sw->ports[1]; sw->ports[2].link_nr = 1; sw->ports[3].config.type = TB_TYPE_PORT; sw->ports[3].config.max_in_hop_id = 19; sw->ports[3].config.max_out_hop_id = 19; sw->ports[3].total_credits = 60; sw->ports[3].ctl_credits = 2; sw->ports[3].dual_link_port = &sw->ports[4]; sw->ports[4].config.type = TB_TYPE_PORT; sw->ports[4].config.max_in_hop_id = 19; sw->ports[4].config.max_out_hop_id = 19; sw->ports[4].total_credits = 60; sw->ports[4].ctl_credits = 2; sw->ports[4].dual_link_port = &sw->ports[3]; sw->ports[4].link_nr = 1; sw->ports[5].config.type = TB_TYPE_PORT; sw->ports[5].config.max_in_hop_id = 19; sw->ports[5].config.max_out_hop_id = 19; sw->ports[5].total_credits = 60; sw->ports[5].ctl_credits = 2; sw->ports[5].dual_link_port = &sw->ports[6]; sw->ports[6].config.type = TB_TYPE_PORT; sw->ports[6].config.max_in_hop_id = 19; sw->ports[6].config.max_out_hop_id = 19; sw->ports[6].total_credits = 60; sw->ports[6].ctl_credits = 2; sw->ports[6].dual_link_port = &sw->ports[5]; sw->ports[6].link_nr = 1; sw->ports[7].config.type = TB_TYPE_PORT; sw->ports[7].config.max_in_hop_id = 19; sw->ports[7].config.max_out_hop_id = 19; sw->ports[7].total_credits = 60; sw->ports[7].ctl_credits = 2; sw->ports[7].dual_link_port = &sw->ports[8]; sw->ports[8].config.type = TB_TYPE_PORT; sw->ports[8].config.max_in_hop_id = 19; sw->ports[8].config.max_out_hop_id = 19; sw->ports[8].total_credits = 60; sw->ports[8].ctl_credits = 2; sw->ports[8].dual_link_port = &sw->ports[7]; sw->ports[8].link_nr = 1; sw->ports[9].config.type = TB_TYPE_PCIE_UP; sw->ports[9].config.max_in_hop_id = 8; sw->ports[9].config.max_out_hop_id = 8; sw->ports[10].config.type = TB_TYPE_PCIE_DOWN; sw->ports[10].config.max_in_hop_id = 8; sw->ports[10].config.max_out_hop_id = 8; sw->ports[11].config.type = TB_TYPE_PCIE_DOWN; sw->ports[11].config.max_in_hop_id = 8; sw->ports[11].config.max_out_hop_id = 8; sw->ports[12].config.type = TB_TYPE_PCIE_DOWN; sw->ports[12].config.max_in_hop_id = 8; sw->ports[12].config.max_out_hop_id = 8; sw->ports[13].config.type = TB_TYPE_DP_HDMI_OUT; sw->ports[13].config.max_in_hop_id = 9; sw->ports[13].config.max_out_hop_id = 9; sw->ports[13].cap_adap = -1; sw->ports[14].config.type = TB_TYPE_DP_HDMI_OUT; sw->ports[14].config.max_in_hop_id = 9; sw->ports[14].config.max_out_hop_id = 9; sw->ports[14].cap_adap = -1; sw->ports[15].disabled = true; sw->ports[16].config.type = TB_TYPE_USB3_UP; sw->ports[16].config.max_in_hop_id = 8; sw->ports[16].config.max_out_hop_id = 8; sw->ports[17].config.type = TB_TYPE_USB3_DOWN; sw->ports[17].config.max_in_hop_id = 8; sw->ports[17].config.max_out_hop_id = 8; sw->ports[18].config.type = TB_TYPE_USB3_DOWN; sw->ports[18].config.max_in_hop_id = 8; sw->ports[18].config.max_out_hop_id = 8; sw->ports[19].config.type = TB_TYPE_USB3_DOWN; sw->ports[19].config.max_in_hop_id = 8; sw->ports[19].config.max_out_hop_id = 8; if (!parent) return sw; /* Link them */ upstream_port = tb_upstream_port(sw); port = tb_port_at(route, parent); port->remote = upstream_port; upstream_port->remote = port; if (port->dual_link_port && upstream_port->dual_link_port) { port->dual_link_port->remote = upstream_port->dual_link_port; upstream_port->dual_link_port->remote = port->dual_link_port; if (bonded) { /* Bonding is used */ port->bonded = true; port->total_credits *= 2; port->dual_link_port->bonded = true; port->dual_link_port->total_credits = 0; upstream_port->bonded = true; upstream_port->total_credits *= 2; upstream_port->dual_link_port->bonded = true; upstream_port->dual_link_port->total_credits = 0; } } return sw; } static struct tb_switch *alloc_dev_with_dpin(struct kunit *test, struct tb_switch *parent, u64 route, bool bonded) { struct tb_switch *sw; sw = alloc_dev_default(test, parent, route, bonded); if (!sw) return NULL; sw->ports[13].config.type = TB_TYPE_DP_HDMI_IN; sw->ports[13].config.max_in_hop_id = 9; sw->ports[13].config.max_out_hop_id = 9; sw->ports[14].config.type = TB_TYPE_DP_HDMI_IN; sw->ports[14].config.max_in_hop_id = 9; sw->ports[14].config.max_out_hop_id = 9; return sw; } static struct tb_switch *alloc_dev_without_dp(struct kunit *test, struct tb_switch *parent, u64 route, bool bonded) { struct tb_switch *sw; int i; sw = alloc_dev_default(test, parent, route, bonded); if (!sw) return NULL; /* * Device with: * 2x USB4 Adapters (adapters 1,2 and 3,4), * 1x PCIe Upstream (adapter 9), * 1x PCIe Downstream (adapter 10), * 1x USB3 Upstream (adapter 16), * 1x USB3 Downstream (adapter 17) */ for (i = 5; i <= 8; i++) sw->ports[i].disabled = true; for (i = 11; i <= 14; i++) sw->ports[i].disabled = true; sw->ports[13].cap_adap = 0; sw->ports[14].cap_adap = 0; for (i = 18; i <= 19; i++) sw->ports[i].disabled = true; sw->generation = 4; sw->credit_allocation = true; sw->max_usb3_credits = 109; sw->min_dp_aux_credits = 0; sw->min_dp_main_credits = 0; sw->max_pcie_credits = 30; sw->max_dma_credits = 1; return sw; } static struct tb_switch *alloc_dev_usb4(struct kunit *test, struct tb_switch *parent, u64 route, bool bonded) { struct tb_switch *sw; sw = alloc_dev_default(test, parent, route, bonded); if (!sw) return NULL; sw->generation = 4; sw->credit_allocation = true; sw->max_usb3_credits = 14; sw->min_dp_aux_credits = 1; sw->min_dp_main_credits = 18; sw->max_pcie_credits = 32; sw->max_dma_credits = 14; return sw; } static void tb_test_path_basic(struct kunit *test) { struct tb_port *src_port, *dst_port, *p; struct tb_switch *host; host = alloc_host(test); src_port = &host->ports[5]; dst_port = src_port; p = tb_next_port_on_path(src_port, dst_port, NULL); KUNIT_EXPECT_PTR_EQ(test, p, dst_port); p = tb_next_port_on_path(src_port, dst_port, p); KUNIT_EXPECT_TRUE(test, !p); } static void tb_test_path_not_connected_walk(struct kunit *test) { struct tb_port *src_port, *dst_port, *p; struct tb_switch *host, *dev; host = alloc_host(test); /* No connection between host and dev */ dev = alloc_dev_default(test, NULL, 3, true); src_port = &host->ports[12]; dst_port = &dev->ports[16]; p = tb_next_port_on_path(src_port, dst_port, NULL); KUNIT_EXPECT_PTR_EQ(test, p, src_port); p = tb_next_port_on_path(src_port, dst_port, p); KUNIT_EXPECT_PTR_EQ(test, p, &host->ports[3]); p = tb_next_port_on_path(src_port, dst_port, p); KUNIT_EXPECT_TRUE(test, !p); /* Other direction */ p = tb_next_port_on_path(dst_port, src_port, NULL); KUNIT_EXPECT_PTR_EQ(test, p, dst_port); p = tb_next_port_on_path(dst_port, src_port, p); KUNIT_EXPECT_PTR_EQ(test, p, &dev->ports[1]); p = tb_next_port_on_path(dst_port, src_port, p); KUNIT_EXPECT_TRUE(test, !p); } struct port_expectation { u64 route; u8 port; enum tb_port_type type; }; static void tb_test_path_single_hop_walk(struct kunit *test) { /* * Walks from Host PCIe downstream port to Device #1 PCIe * upstream port. * * [Host] * 1 | * 1 | * [Device] */ static const struct port_expectation test_data[] = { { .route = 0x0, .port = 8, .type = TB_TYPE_PCIE_DOWN }, { .route = 0x0, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 9, .type = TB_TYPE_PCIE_UP }, }; struct tb_port *src_port, *dst_port, *p; struct tb_switch *host, *dev; int i; host = alloc_host(test); dev = alloc_dev_default(test, host, 1, true); src_port = &host->ports[8]; dst_port = &dev->ports[9]; /* Walk both directions */ i = 0; tb_for_each_port_on_path(src_port, dst_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i++; } KUNIT_EXPECT_EQ(test, i, ARRAY_SIZE(test_data)); i = ARRAY_SIZE(test_data) - 1; tb_for_each_port_on_path(dst_port, src_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i--; } KUNIT_EXPECT_EQ(test, i, -1); } static void tb_test_path_daisy_chain_walk(struct kunit *test) { /* * Walks from Host DP IN to Device #2 DP OUT. * * [Host] * 1 | * 1 | * [Device #1] * 3 / * 1 / * [Device #2] */ static const struct port_expectation test_data[] = { { .route = 0x0, .port = 5, .type = TB_TYPE_DP_HDMI_IN }, { .route = 0x0, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x301, .port = 13, .type = TB_TYPE_DP_HDMI_OUT }, }; struct tb_port *src_port, *dst_port, *p; struct tb_switch *host, *dev1, *dev2; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, true); dev2 = alloc_dev_default(test, dev1, 0x301, true); src_port = &host->ports[5]; dst_port = &dev2->ports[13]; /* Walk both directions */ i = 0; tb_for_each_port_on_path(src_port, dst_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i++; } KUNIT_EXPECT_EQ(test, i, ARRAY_SIZE(test_data)); i = ARRAY_SIZE(test_data) - 1; tb_for_each_port_on_path(dst_port, src_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i--; } KUNIT_EXPECT_EQ(test, i, -1); } static void tb_test_path_simple_tree_walk(struct kunit *test) { /* * Walks from Host DP IN to Device #3 DP OUT. * * [Host] * 1 | * 1 | * [Device #1] * 3 / | 5 \ 7 * 1 / | \ 1 * [Device #2] | [Device #4] * | 1 * [Device #3] */ static const struct port_expectation test_data[] = { { .route = 0x0, .port = 5, .type = TB_TYPE_DP_HDMI_IN }, { .route = 0x0, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 5, .type = TB_TYPE_PORT }, { .route = 0x501, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x501, .port = 13, .type = TB_TYPE_DP_HDMI_OUT }, }; struct tb_port *src_port, *dst_port, *p; struct tb_switch *host, *dev1, *dev3; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, true); alloc_dev_default(test, dev1, 0x301, true); dev3 = alloc_dev_default(test, dev1, 0x501, true); alloc_dev_default(test, dev1, 0x701, true); src_port = &host->ports[5]; dst_port = &dev3->ports[13]; /* Walk both directions */ i = 0; tb_for_each_port_on_path(src_port, dst_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i++; } KUNIT_EXPECT_EQ(test, i, ARRAY_SIZE(test_data)); i = ARRAY_SIZE(test_data) - 1; tb_for_each_port_on_path(dst_port, src_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i--; } KUNIT_EXPECT_EQ(test, i, -1); } static void tb_test_path_complex_tree_walk(struct kunit *test) { /* * Walks from Device #3 DP IN to Device #9 DP OUT. * * [Host] * 1 | * 1 | * [Device #1] * 3 / | 5 \ 7 * 1 / | \ 1 * [Device #2] | [Device #5] * 5 | | 1 \ 7 * 1 | [Device #4] \ 1 * [Device #3] [Device #6] * 3 / * 1 / * [Device #7] * 3 / | 5 * 1 / | * [Device #8] | 1 * [Device #9] */ static const struct port_expectation test_data[] = { { .route = 0x50301, .port = 13, .type = TB_TYPE_DP_HDMI_IN }, { .route = 0x50301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x301, .port = 5, .type = TB_TYPE_PORT }, { .route = 0x301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 7, .type = TB_TYPE_PORT }, { .route = 0x701, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x701, .port = 7, .type = TB_TYPE_PORT }, { .route = 0x70701, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x70701, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x3070701, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x3070701, .port = 5, .type = TB_TYPE_PORT }, { .route = 0x503070701, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x503070701, .port = 14, .type = TB_TYPE_DP_HDMI_OUT }, }; struct tb_switch *host, *dev1, *dev2, *dev3, *dev5, *dev6, *dev7, *dev9; struct tb_port *src_port, *dst_port, *p; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, true); dev2 = alloc_dev_default(test, dev1, 0x301, true); dev3 = alloc_dev_with_dpin(test, dev2, 0x50301, true); alloc_dev_default(test, dev1, 0x501, true); dev5 = alloc_dev_default(test, dev1, 0x701, true); dev6 = alloc_dev_default(test, dev5, 0x70701, true); dev7 = alloc_dev_default(test, dev6, 0x3070701, true); alloc_dev_default(test, dev7, 0x303070701, true); dev9 = alloc_dev_default(test, dev7, 0x503070701, true); src_port = &dev3->ports[13]; dst_port = &dev9->ports[14]; /* Walk both directions */ i = 0; tb_for_each_port_on_path(src_port, dst_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i++; } KUNIT_EXPECT_EQ(test, i, ARRAY_SIZE(test_data)); i = ARRAY_SIZE(test_data) - 1; tb_for_each_port_on_path(dst_port, src_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i--; } KUNIT_EXPECT_EQ(test, i, -1); } static void tb_test_path_max_length_walk(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 *src_port, *dst_port, *p; int i; /* * Walks from Device #6 DP IN to Device #12 DP OUT. * * [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] */ static const struct port_expectation test_data[] = { { .route = 0x30303030301, .port = 13, .type = TB_TYPE_DP_HDMI_IN }, { .route = 0x30303030301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x303030301, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x303030301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x3030301, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x3030301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x30301, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x30301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x301, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x301, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x1, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x0, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x0, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x3, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x3, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x303, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x303, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x30303, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x30303, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x3030303, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x3030303, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x303030303, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x303030303, .port = 3, .type = TB_TYPE_PORT }, { .route = 0x30303030303, .port = 1, .type = TB_TYPE_PORT }, { .route = 0x30303030303, .port = 13, .type = TB_TYPE_DP_HDMI_OUT }, }; 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); src_port = &dev6->ports[13]; dst_port = &dev12->ports[13]; /* Walk both directions */ i = 0; tb_for_each_port_on_path(src_port, dst_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i++; } KUNIT_EXPECT_EQ(test, i, ARRAY_SIZE(test_data)); i = ARRAY_SIZE(test_data) - 1; tb_for_each_port_on_path(dst_port, src_port, p) { KUNIT_EXPECT_TRUE(test, i < ARRAY_SIZE(test_data)); KUNIT_EXPECT_EQ(test, tb_route(p->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, p->port, test_data[i].port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)p->config.type, test_data[i].type); i--; } KUNIT_EXPECT_EQ(test, i, -1); } static void tb_test_path_not_connected(struct kunit *test) { struct tb_switch *host, *dev1, *dev2; struct tb_port *down, *up; struct tb_path *path; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x3, false); /* Not connected to anything */ dev2 = alloc_dev_default(test, NULL, 0x303, false); down = &dev1->ports[10]; up = &dev2->ports[9]; path = tb_path_alloc(NULL, down, 8, up, 8, 0, "PCIe Down"); KUNIT_ASSERT_NULL(test, path); path = tb_path_alloc(NULL, down, 8, up, 8, 1, "PCIe Down"); KUNIT_ASSERT_NULL(test, path); } struct hop_expectation { u64 route; u8 in_port; enum tb_port_type in_type; u8 out_port; enum tb_port_type out_type; }; static void tb_test_path_not_bonded_lane0(struct kunit *test) { /* * PCIe path from host to device using lane 0. * * [Host] * 3 |: 4 * 1 |: 2 * [Device] */ static const struct hop_expectation test_data[] = { { .route = 0x0, .in_port = 9, .in_type = TB_TYPE_PCIE_DOWN, .out_port = 3, .out_type = TB_TYPE_PORT, }, { .route = 0x3, .in_port = 1, .in_type = TB_TYPE_PORT, .out_port = 9, .out_type = TB_TYPE_PCIE_UP, }, }; struct tb_switch *host, *dev; struct tb_port *down, *up; struct tb_path *path; int i; host = alloc_host(test); dev = alloc_dev_default(test, host, 0x3, false); down = &host->ports[9]; up = &dev->ports[9]; path = tb_path_alloc(NULL, down, 8, up, 8, 0, "PCIe Down"); KUNIT_ASSERT_NOT_NULL(test, path); KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data)); for (i = 0; i < ARRAY_SIZE(test_data); i++) { const struct tb_port *in_port, *out_port; in_port = path->hops[i].in_port; out_port = path->hops[i].out_port; KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type, test_data[i].in_type); KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type, test_data[i].out_type); } tb_path_free(path); } static void tb_test_path_not_bonded_lane1(struct kunit *test) { /* * DP Video path from host to device using lane 1. Paths like * these are only used with Thunderbolt 1 devices where lane * bonding is not possible. USB4 specifically does not allow * paths like this (you either use lane 0 where lane 1 is * disabled or both lanes are bonded). * * [Host] * 1 :| 2 * 1 :| 2 * [Device] */ static const struct hop_expectation test_data[] = { { .route = 0x0, .in_port = 5, .in_type = TB_TYPE_DP_HDMI_IN, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x1, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 13, .out_type = TB_TYPE_DP_HDMI_OUT, }, }; struct tb_switch *host, *dev; struct tb_port *in, *out; struct tb_path *path; int i; host = alloc_host(test); dev = alloc_dev_default(test, host, 0x1, false); in = &host->ports[5]; out = &dev->ports[13]; path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video"); KUNIT_ASSERT_NOT_NULL(test, path); KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data)); for (i = 0; i < ARRAY_SIZE(test_data); i++) { const struct tb_port *in_port, *out_port; in_port = path->hops[i].in_port; out_port = path->hops[i].out_port; KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type, test_data[i].in_type); KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type, test_data[i].out_type); } tb_path_free(path); } static void tb_test_path_not_bonded_lane1_chain(struct kunit *test) { /* * DP Video path from host to device 3 using lane 1. * * [Host] * 1 :| 2 * 1 :| 2 * [Device #1] * 7 :| 8 * 1 :| 2 * [Device #2] * 5 :| 6 * 1 :| 2 * [Device #3] */ static const struct hop_expectation test_data[] = { { .route = 0x0, .in_port = 5, .in_type = TB_TYPE_DP_HDMI_IN, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x1, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 8, .out_type = TB_TYPE_PORT, }, { .route = 0x701, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 6, .out_type = TB_TYPE_PORT, }, { .route = 0x50701, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 13, .out_type = TB_TYPE_DP_HDMI_OUT, }, }; struct tb_switch *host, *dev1, *dev2, *dev3; struct tb_port *in, *out; struct tb_path *path; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, false); dev2 = alloc_dev_default(test, dev1, 0x701, false); dev3 = alloc_dev_default(test, dev2, 0x50701, false); in = &host->ports[5]; out = &dev3->ports[13]; path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video"); KUNIT_ASSERT_NOT_NULL(test, path); KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data)); for (i = 0; i < ARRAY_SIZE(test_data); i++) { const struct tb_port *in_port, *out_port; in_port = path->hops[i].in_port; out_port = path->hops[i].out_port; KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type, test_data[i].in_type); KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type, test_data[i].out_type); } tb_path_free(path); } static void tb_test_path_not_bonded_lane1_chain_reverse(struct kunit *test) { /* * DP Video path from device 3 to host using lane 1. * * [Host] * 1 :| 2 * 1 :| 2 * [Device #1] * 7 :| 8 * 1 :| 2 * [Device #2] * 5 :| 6 * 1 :| 2 * [Device #3] */ static const struct hop_expectation test_data[] = { { .route = 0x50701, .in_port = 13, .in_type = TB_TYPE_DP_HDMI_IN, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x701, .in_port = 6, .in_type = TB_TYPE_PORT, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x1, .in_port = 8, .in_type = TB_TYPE_PORT, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x0, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 5, .out_type = TB_TYPE_DP_HDMI_IN, }, }; struct tb_switch *host, *dev1, *dev2, *dev3; struct tb_port *in, *out; struct tb_path *path; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, false); dev2 = alloc_dev_default(test, dev1, 0x701, false); dev3 = alloc_dev_with_dpin(test, dev2, 0x50701, false); in = &dev3->ports[13]; out = &host->ports[5]; path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video"); KUNIT_ASSERT_NOT_NULL(test, path); KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data)); for (i = 0; i < ARRAY_SIZE(test_data); i++) { const struct tb_port *in_port, *out_port; in_port = path->hops[i].in_port; out_port = path->hops[i].out_port; KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type, test_data[i].in_type); KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type, test_data[i].out_type); } tb_path_free(path); } static void tb_test_path_mixed_chain(struct kunit *test) { /* * DP Video path from host to device 4 where first and last link * is bonded. * * [Host] * 1 | * 1 | * [Device #1] * 7 :| 8 * 1 :| 2 * [Device #2] * 5 :| 6 * 1 :| 2 * [Device #3] * 3 | * 1 | * [Device #4] */ static const struct hop_expectation test_data[] = { { .route = 0x0, .in_port = 5, .in_type = TB_TYPE_DP_HDMI_IN, .out_port = 1, .out_type = TB_TYPE_PORT, }, { .route = 0x1, .in_port = 1, .in_type = TB_TYPE_PORT, .out_port = 8, .out_type = TB_TYPE_PORT, }, { .route = 0x701, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 6, .out_type = TB_TYPE_PORT, }, { .route = 0x50701, .in_port = 2, .in_type = TB_TYPE_PORT, .out_port = 3, .out_type = TB_TYPE_PORT, }, { .route = 0x3050701, .in_port = 1, .in_type = TB_TYPE_PORT, .out_port = 13, .out_type = TB_TYPE_DP_HDMI_OUT, }, }; struct tb_switch *host, *dev1, *dev2, *dev3, *dev4; struct tb_port *in, *out; struct tb_path *path; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, true); dev2 = alloc_dev_default(test, dev1, 0x701, false); dev3 = alloc_dev_default(test, dev2, 0x50701, false); dev4 = alloc_dev_default(test, dev3, 0x3050701, true); in = &host->ports[5]; out = &dev4->ports[13]; path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video"); KUNIT_ASSERT_NOT_NULL(test, path); KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data)); for (i = 0; i < ARRAY_SIZE(test_data); i++) { const struct tb_port *in_port, *out_port; in_port = path->hops[i].in_port; out_port = path->hops[i].out_port; KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type, test_data[i].in_type); KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type, test_data[i].out_type); } tb_path_free(path); } static void tb_test_path_mixed_chain_reverse(struct kunit *test) { /* * DP Video path from device 4 to host where first and last link * is bonded. * * [Host] * 1 | * 1 | * [Device #1] * 7 :| 8 * 1 :| 2 * [Device #2] * 5 :| 6 * 1 :| 2 * [Device #3] * 3 | * 1 | * [Device #4] */ static const struct hop_expectation test_data[] = { { .route = 0x3050701, .in_port = 13, .in_type = TB_TYPE_DP_HDMI_OUT, .out_port = 1, .out_type = TB_TYPE_PORT, }, { .route = 0x50701, .in_port = 3, .in_type = TB_TYPE_PORT, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x701, .in_port = 6, .in_type = TB_TYPE_PORT, .out_port = 2, .out_type = TB_TYPE_PORT, }, { .route = 0x1, .in_port = 8, .in_type = TB_TYPE_PORT, .out_port = 1, .out_type = TB_TYPE_PORT, }, { .route = 0x0, .in_port = 1, .in_type = TB_TYPE_PORT, .out_port = 5, .out_type = TB_TYPE_DP_HDMI_IN, }, }; struct tb_switch *host, *dev1, *dev2, *dev3, *dev4; struct tb_port *in, *out; struct tb_path *path; int i; host = alloc_host(test); dev1 = alloc_dev_default(test, host, 0x1, true); dev2 = alloc_dev_default(test, dev1, 0x701, false); dev3 = alloc_dev_default(test, dev2, 0x50701, false); dev4 = alloc_dev_default(test, dev3, 0x3050701, true); in = &dev4->ports[13]; out = &host->ports[5]; path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video"); KUNIT_ASSERT_NOT_NULL(test, path); KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data)); for (i = 0; i < ARRAY_SIZE(test_data); i++) { const struct tb_port *in_port, *out_port; in_port = path->hops[i].in_port; out_port = path->hops[i].out_port; KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type, test_data[i].in_type); KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route); KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port); KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type, test_data[i].out_type); } 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_NOT_NULL(test, tunnel1); KUNIT_EXPECT_EQ(test, tunnel1->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, 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_NOT_NULL(test, tunnel2); KUNIT_EXPECT_EQ(test, tunnel2->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, 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, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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_NOT_NULL(test, tunnel1); KUNIT_EXPECT_EQ(test, tunnel1->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, 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_NOT_NULL(test, tunnel2); KUNIT_EXPECT_EQ(test, tunnel2->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, 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, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, dp_tunnel); 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 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_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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_NOT_NULL(test, tunnel); KUNIT_EXPECT_EQ(test, 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, 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_NOT_NULL(test, tunnel); 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_NOT_NULL(test, tunnel); 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_NOT_NULL(test, tunnel); 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 void tb_test_credit_alloc_legacy_not_bonded(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *up, *down; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host(test); dev = alloc_dev_default(test, host, 0x1, false); down = &host->ports[8]; up = &dev->ports[9]; tunnel = tb_tunnel_alloc_pci(NULL, up, down); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 16U); path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 16U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_legacy_bonded(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *up, *down; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host(test); dev = alloc_dev_default(test, host, 0x1, true); down = &host->ports[8]; up = &dev->ports[9]; tunnel = tb_tunnel_alloc_pci(NULL, up, down); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 32U); path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 32U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_pcie(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *up, *down; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host_usb4(test); dev = alloc_dev_usb4(test, host, 0x1, true); down = &host->ports[8]; up = &dev->ports[9]; tunnel = tb_tunnel_alloc_pci(NULL, up, down); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 32U); path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 64U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_without_dp(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *up, *down; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host_usb4(test); dev = alloc_dev_without_dp(test, host, 0x1, true); /* * The device has no DP therefore baMinDPmain = baMinDPaux = 0 * * Create PCIe path with buffers less than baMaxPCIe. * * For a device with buffers configurations: * baMaxUSB3 = 109 * baMinDPaux = 0 * baMinDPmain = 0 * baMaxPCIe = 30 * baMaxHI = 1 * Remaining Buffers = Total - (CP + DP) = 120 - (2 + 0) = 118 * PCIe Credits = Max(6, Min(baMaxPCIe, Remaining Buffers - baMaxUSB3) * = Max(6, Min(30, 9) = 9 */ down = &host->ports[8]; up = &dev->ports[9]; tunnel = tb_tunnel_alloc_pci(NULL, up, down); KUNIT_ASSERT_TRUE(test, tunnel != NULL); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); /* PCIe downstream path */ path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 9U); /* PCIe upstream path */ path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 64U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_dp(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *in, *out; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host_usb4(test); dev = alloc_dev_usb4(test, host, 0x1, true); in = &host->ports[5]; out = &dev->ports[14]; tunnel = tb_tunnel_alloc_dp(NULL, in, out, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)3); /* Video (main) path */ path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 12U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 18U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 0U); /* AUX TX */ path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 1U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); /* AUX RX */ path = tunnel->paths[2]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 1U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_usb3(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *up, *down; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host_usb4(test); dev = alloc_dev_usb4(test, host, 0x1, true); down = &host->ports[12]; up = &dev->ports[16]; tunnel = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 32U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_dma(struct kunit *test) { struct tb_switch *host, *dev; struct tb_port *nhi, *port; struct tb_tunnel *tunnel; struct tb_path *path; host = alloc_host_usb4(test); dev = alloc_dev_usb4(test, host, 0x1, true); nhi = &host->ports[7]; port = &dev->ports[3]; tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1); KUNIT_ASSERT_NOT_NULL(test, tunnel); KUNIT_ASSERT_EQ(test, tunnel->npaths, (size_t)2); /* DMA RX */ path = tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 14U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); /* DMA TX */ path = tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); tb_tunnel_free(tunnel); } static void tb_test_credit_alloc_dma_multiple(struct kunit *test) { struct tb_tunnel *tunnel1, *tunnel2, *tunnel3; struct tb_switch *host, *dev; struct tb_port *nhi, *port; struct tb_path *path; host = alloc_host_usb4(test); dev = alloc_dev_usb4(test, host, 0x1, true); nhi = &host->ports[7]; port = &dev->ports[3]; /* * Create three DMA tunnels through the same ports. With the * default buffers we should be able to create two and the last * one fails. * * For default host we have following buffers for DMA: * * 120 - (2 + 2 * (1 + 0) + 32 + 64 + spare) = 20 * * For device we have following: * * 120 - (2 + 2 * (1 + 18) + 14 + 32 + spare) = 34 * * spare = 14 + 1 = 15 * * So on host the first tunnel gets 14 and the second gets the * remaining 1 and then we run out of buffers. */ tunnel1 = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1); KUNIT_ASSERT_NOT_NULL(test, tunnel1); KUNIT_ASSERT_EQ(test, tunnel1->npaths, (size_t)2); path = tunnel1->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 14U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); path = tunnel1->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); tunnel2 = tb_tunnel_alloc_dma(NULL, nhi, port, 9, 2, 9, 2); KUNIT_ASSERT_NOT_NULL(test, tunnel2); KUNIT_ASSERT_EQ(test, tunnel2->npaths, (size_t)2); path = tunnel2->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 14U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); path = tunnel2->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); tunnel3 = tb_tunnel_alloc_dma(NULL, nhi, port, 10, 3, 10, 3); KUNIT_ASSERT_NULL(test, tunnel3); /* * Release the first DMA tunnel. That should make 14 buffers * available for the next tunnel. */ tb_tunnel_free(tunnel1); tunnel3 = tb_tunnel_alloc_dma(NULL, nhi, port, 10, 3, 10, 3); KUNIT_ASSERT_NOT_NULL(test, tunnel3); path = tunnel3->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 14U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); path = tunnel3->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); tb_tunnel_free(tunnel3); tb_tunnel_free(tunnel2); } static struct tb_tunnel *TB_TEST_PCIE_TUNNEL(struct kunit *test, struct tb_switch *host, struct tb_switch *dev) { struct tb_port *up, *down; struct tb_tunnel *pcie_tunnel; struct tb_path *path; down = &host->ports[8]; up = &dev->ports[9]; pcie_tunnel = tb_tunnel_alloc_pci(NULL, up, down); KUNIT_ASSERT_NOT_NULL(test, pcie_tunnel); KUNIT_ASSERT_EQ(test, pcie_tunnel->npaths, (size_t)2); path = pcie_tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 32U); path = pcie_tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 64U); return pcie_tunnel; } static struct tb_tunnel *TB_TEST_DP_TUNNEL1(struct kunit *test, struct tb_switch *host, struct tb_switch *dev) { struct tb_port *in, *out; struct tb_tunnel *dp_tunnel1; struct tb_path *path; in = &host->ports[5]; out = &dev->ports[13]; dp_tunnel1 = tb_tunnel_alloc_dp(NULL, in, out, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, dp_tunnel1); KUNIT_ASSERT_EQ(test, dp_tunnel1->npaths, (size_t)3); path = dp_tunnel1->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 12U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 18U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 0U); path = dp_tunnel1->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 1U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); path = dp_tunnel1->paths[2]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 1U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); return dp_tunnel1; } static struct tb_tunnel *TB_TEST_DP_TUNNEL2(struct kunit *test, struct tb_switch *host, struct tb_switch *dev) { struct tb_port *in, *out; struct tb_tunnel *dp_tunnel2; struct tb_path *path; in = &host->ports[6]; out = &dev->ports[14]; dp_tunnel2 = tb_tunnel_alloc_dp(NULL, in, out, 1, 0, 0); KUNIT_ASSERT_NOT_NULL(test, dp_tunnel2); KUNIT_ASSERT_EQ(test, dp_tunnel2->npaths, (size_t)3); path = dp_tunnel2->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 12U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 18U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 0U); path = dp_tunnel2->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 1U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); path = dp_tunnel2->paths[2]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 1U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); return dp_tunnel2; } static struct tb_tunnel *TB_TEST_USB3_TUNNEL(struct kunit *test, struct tb_switch *host, struct tb_switch *dev) { struct tb_port *up, *down; struct tb_tunnel *usb3_tunnel; struct tb_path *path; down = &host->ports[12]; up = &dev->ports[16]; usb3_tunnel = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0); KUNIT_ASSERT_NOT_NULL(test, usb3_tunnel); KUNIT_ASSERT_EQ(test, usb3_tunnel->npaths, (size_t)2); path = usb3_tunnel->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); path = usb3_tunnel->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 7U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 32U); return usb3_tunnel; } static struct tb_tunnel *TB_TEST_DMA_TUNNEL1(struct kunit *test, struct tb_switch *host, struct tb_switch *dev) { struct tb_port *nhi, *port; struct tb_tunnel *dma_tunnel1; struct tb_path *path; nhi = &host->ports[7]; port = &dev->ports[3]; dma_tunnel1 = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1); KUNIT_ASSERT_NOT_NULL(test, dma_tunnel1); KUNIT_ASSERT_EQ(test, dma_tunnel1->npaths, (size_t)2); path = dma_tunnel1->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 14U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); path = dma_tunnel1->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 14U); return dma_tunnel1; } static struct tb_tunnel *TB_TEST_DMA_TUNNEL2(struct kunit *test, struct tb_switch *host, struct tb_switch *dev) { struct tb_port *nhi, *port; struct tb_tunnel *dma_tunnel2; struct tb_path *path; nhi = &host->ports[7]; port = &dev->ports[3]; dma_tunnel2 = tb_tunnel_alloc_dma(NULL, nhi, port, 9, 2, 9, 2); KUNIT_ASSERT_NOT_NULL(test, dma_tunnel2); KUNIT_ASSERT_EQ(test, dma_tunnel2->npaths, (size_t)2); path = dma_tunnel2->paths[0]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 14U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); path = dma_tunnel2->paths[1]; KUNIT_ASSERT_EQ(test, path->path_length, 2); KUNIT_EXPECT_EQ(test, path->hops[0].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[0].initial_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].nfc_credits, 0U); KUNIT_EXPECT_EQ(test, path->hops[1].initial_credits, 1U); return dma_tunnel2; } static void tb_test_credit_alloc_all(struct kunit *test) { struct tb_tunnel *pcie_tunnel, *dp_tunnel1, *dp_tunnel2, *usb3_tunnel; struct tb_tunnel *dma_tunnel1, *dma_tunnel2; struct tb_switch *host, *dev; /* * Create PCIe, 2 x DP, USB 3.x and two DMA tunnels from host to * device. Expectation is that all these can be established with * the default credit allocation found in Intel hardware. */ host = alloc_host_usb4(test); dev = alloc_dev_usb4(test, host, 0x1, true); pcie_tunnel = TB_TEST_PCIE_TUNNEL(test, host, dev); dp_tunnel1 = TB_TEST_DP_TUNNEL1(test, host, dev); dp_tunnel2 = TB_TEST_DP_TUNNEL2(test, host, dev); usb3_tunnel = TB_TEST_USB3_TUNNEL(test, host, dev); dma_tunnel1 = TB_TEST_DMA_TUNNEL1(test, host, dev); dma_tunnel2 = TB_TEST_DMA_TUNNEL2(test, host, dev); tb_tunnel_free(dma_tunnel2); tb_tunnel_free(dma_tunnel1); tb_tunnel_free(usb3_tunnel); tb_tunnel_free(dp_tunnel2); tb_tunnel_free(dp_tunnel1); tb_tunnel_free(pcie_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_NOT_NULL(test, dir); p = tb_property_find(dir, "foo", TB_PROPERTY_TYPE_TEXT); KUNIT_ASSERT_NULL(test, p); p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_TEXT); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_STREQ(test, p->value.text, "Apple Inc."); p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_VALUE); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_EQ(test, p->value.immediate, 0xa27); p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_TEXT); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_STREQ(test, p->value.text, "Macintosh"); p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_VALUE); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_EQ(test, p->value.immediate, 0xa); p = tb_property_find(dir, "missing", TB_PROPERTY_TYPE_DIRECTORY); KUNIT_ASSERT_NULL(test, p); p = tb_property_find(dir, "network", TB_PROPERTY_TYPE_DIRECTORY); KUNIT_ASSERT_NOT_NULL(test, p); 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_NOT_NULL(test, p); KUNIT_EXPECT_EQ(test, p->value.immediate, 0x1); p = tb_property_find(network_dir, "prtcvers", TB_PROPERTY_TYPE_VALUE); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_EQ(test, p->value.immediate, 0x1); p = tb_property_find(network_dir, "prtcrevs", TB_PROPERTY_TYPE_VALUE); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_EQ(test, p->value.immediate, 0x1); p = tb_property_find(network_dir, "prtcstns", TB_PROPERTY_TYPE_VALUE); KUNIT_ASSERT_NOT_NULL(test, p); KUNIT_EXPECT_EQ(test, p->value.immediate, 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_NOT_NULL(test, dir); ret = tb_property_format_dir(dir, NULL, 0); KUNIT_ASSERT_EQ(test, ret, ARRAY_SIZE(root_directory)); block_len = ret; block = kunit_kzalloc(test, block_len * sizeof(u32), GFP_KERNEL); KUNIT_ASSERT_NOT_NULL(test, block); 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_NOT_NULL(test, d2->uuid); KUNIT_ASSERT_TRUE(test, uuid_equal(d1->uuid, d2->uuid)); } else { KUNIT_ASSERT_NULL(test, d2->uuid); } 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_NOT_NULL(test, p1); p2 = tb_property_get_next(d2, p2); KUNIT_ASSERT_NOT_NULL(test, p2); 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_NOT_NULL(test, p1->value.dir); KUNIT_ASSERT_NOT_NULL(test, p2->value.dir); compare_dirs(test, p1->value.dir, p2->value.dir); break; case TB_PROPERTY_TYPE_DATA: KUNIT_ASSERT_NOT_NULL(test, p1->value.data); KUNIT_ASSERT_NOT_NULL(test, p2->value.data); KUNIT_ASSERT_TRUE(test, !memcmp(p1->value.data, p2->value.data, p1->length * 4) ); break; case TB_PROPERTY_TYPE_TEXT: KUNIT_ASSERT_NOT_NULL(test, p1->value.text); KUNIT_ASSERT_NOT_NULL(test, p2->value.text); 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_NOT_NULL(test, src); dst = tb_property_copy_dir(src); KUNIT_ASSERT_NOT_NULL(test, dst); /* 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, ARRAY_SIZE(root_directory)); block = kunit_kzalloc(test, sizeof(root_directory), GFP_KERNEL); KUNIT_ASSERT_NOT_NULL(test, block); 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), KUNIT_CASE(tb_test_path_single_hop_walk), KUNIT_CASE(tb_test_path_daisy_chain_walk), KUNIT_CASE(tb_test_path_simple_tree_walk), KUNIT_CASE(tb_test_path_complex_tree_walk), KUNIT_CASE(tb_test_path_max_length_walk), KUNIT_CASE(tb_test_path_not_connected), KUNIT_CASE(tb_test_path_not_bonded_lane0), KUNIT_CASE(tb_test_path_not_bonded_lane1), KUNIT_CASE(tb_test_path_not_bonded_lane1_chain), 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), 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_credit_alloc_legacy_not_bonded), KUNIT_CASE(tb_test_credit_alloc_legacy_bonded), KUNIT_CASE(tb_test_credit_alloc_pcie), KUNIT_CASE(tb_test_credit_alloc_without_dp), KUNIT_CASE(tb_test_credit_alloc_dp), KUNIT_CASE(tb_test_credit_alloc_usb3), KUNIT_CASE(tb_test_credit_alloc_dma), KUNIT_CASE(tb_test_credit_alloc_dma_multiple), KUNIT_CASE(tb_test_credit_alloc_all), KUNIT_CASE(tb_test_property_parse), KUNIT_CASE(tb_test_property_format), KUNIT_CASE(tb_test_property_copy), { } }; static struct kunit_suite tb_test_suite = { .name = "thunderbolt", .test_cases = tb_test_cases, }; kunit_test_suite(tb_test_suite);
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