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path: root/drivers/thunderbolt/test.c
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Diffstat (limited to 'drivers/thunderbolt/test.c')
-rw-r--r--drivers/thunderbolt/test.c645
1 files changed, 595 insertions, 50 deletions
diff --git a/drivers/thunderbolt/test.c b/drivers/thunderbolt/test.c
index 5ff5a03bc9ce..eca0ef311bde 100644
--- a/drivers/thunderbolt/test.c
+++ b/drivers/thunderbolt/test.c
@@ -87,22 +87,30 @@ static struct tb_switch *alloc_host(struct kunit *test)
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;
@@ -143,6 +151,25 @@ static struct tb_switch *alloc_host(struct kunit *test)
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)
@@ -164,44 +191,60 @@ static struct tb_switch *alloc_dev_default(struct kunit *test,
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;
@@ -260,14 +303,18 @@ static struct tb_switch *alloc_dev_default(struct kunit *test,
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->dual_link_port->bonded = true;
- upstream_port->bonded = true;
- upstream_port->dual_link_port->bonded = true;
+ 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;
@@ -294,6 +341,27 @@ static struct tb_switch *alloc_dev_with_dpin(struct kunit *test,
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;
@@ -389,7 +457,7 @@ static void tb_test_path_single_hop_walk(struct kunit *test)
i++;
}
- KUNIT_EXPECT_EQ(test, i, (int)ARRAY_SIZE(test_data));
+ 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) {
@@ -448,7 +516,7 @@ static void tb_test_path_daisy_chain_walk(struct kunit *test)
i++;
}
- KUNIT_EXPECT_EQ(test, i, (int)ARRAY_SIZE(test_data));
+ 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) {
@@ -511,7 +579,7 @@ static void tb_test_path_simple_tree_walk(struct kunit *test)
i++;
}
- KUNIT_EXPECT_EQ(test, i, (int)ARRAY_SIZE(test_data));
+ 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) {
@@ -595,7 +663,7 @@ static void tb_test_path_complex_tree_walk(struct kunit *test)
i++;
}
- KUNIT_EXPECT_EQ(test, i, (int)ARRAY_SIZE(test_data));
+ 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) {
@@ -698,7 +766,7 @@ static void tb_test_path_max_length_walk(struct kunit *test)
i++;
}
- KUNIT_EXPECT_EQ(test, i, (int)ARRAY_SIZE(test_data));
+ 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) {
@@ -780,7 +848,7 @@ static void tb_test_path_not_bonded_lane0(struct kunit *test)
path = tb_path_alloc(NULL, down, 8, up, 8, 0, "PCIe Down");
KUNIT_ASSERT_TRUE(test, path != NULL);
- KUNIT_ASSERT_EQ(test, path->path_length, (int)ARRAY_SIZE(test_data));
+ 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;
@@ -842,7 +910,7 @@ static void tb_test_path_not_bonded_lane1(struct kunit *test)
path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video");
KUNIT_ASSERT_TRUE(test, path != NULL);
- KUNIT_ASSERT_EQ(test, path->path_length, (int)ARRAY_SIZE(test_data));
+ 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;
@@ -922,7 +990,7 @@ static void tb_test_path_not_bonded_lane1_chain(struct kunit *test)
path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video");
KUNIT_ASSERT_TRUE(test, path != NULL);
- KUNIT_ASSERT_EQ(test, path->path_length, (int)ARRAY_SIZE(test_data));
+ 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;
@@ -1002,7 +1070,7 @@ static void tb_test_path_not_bonded_lane1_chain_reverse(struct kunit *test)
path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video");
KUNIT_ASSERT_TRUE(test, path != NULL);
- KUNIT_ASSERT_EQ(test, path->path_length, (int)ARRAY_SIZE(test_data));
+ 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;
@@ -1094,7 +1162,7 @@ static void tb_test_path_mixed_chain(struct kunit *test)
path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video");
KUNIT_ASSERT_TRUE(test, path != NULL);
- KUNIT_ASSERT_EQ(test, path->path_length, (int)ARRAY_SIZE(test_data));
+ 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;
@@ -1186,7 +1254,7 @@ static void tb_test_path_mixed_chain_reverse(struct kunit *test)
path = tb_path_alloc(NULL, in, 9, out, 9, 1, "Video");
KUNIT_ASSERT_TRUE(test, path != NULL);
- KUNIT_ASSERT_EQ(test, path->path_length, (int)ARRAY_SIZE(test_data));
+ 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;
@@ -1230,10 +1298,10 @@ static void tb_test_tunnel_pcie(struct kunit *test)
up = &dev1->ports[9];
tunnel1 = tb_tunnel_alloc_pci(NULL, up, down);
KUNIT_ASSERT_TRUE(test, tunnel1 != NULL);
- KUNIT_EXPECT_EQ(test, tunnel1->type, (enum tb_tunnel_type)TB_TUNNEL_PCI);
+ KUNIT_EXPECT_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, (size_t)2);
+ 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);
@@ -1245,10 +1313,10 @@ static void tb_test_tunnel_pcie(struct kunit *test)
up = &dev2->ports[9];
tunnel2 = tb_tunnel_alloc_pci(NULL, up, down);
KUNIT_ASSERT_TRUE(test, tunnel2 != NULL);
- KUNIT_EXPECT_EQ(test, tunnel2->type, (enum tb_tunnel_type)TB_TUNNEL_PCI);
+ KUNIT_EXPECT_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, (size_t)2);
+ 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);
@@ -1282,10 +1350,10 @@ static void tb_test_tunnel_dp(struct kunit *test)
tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP);
+ KUNIT_EXPECT_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, (size_t)3);
+ 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);
@@ -1328,10 +1396,10 @@ static void tb_test_tunnel_dp_chain(struct kunit *test)
tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP);
+ KUNIT_EXPECT_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, (size_t)3);
+ 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);
@@ -1378,10 +1446,10 @@ static void tb_test_tunnel_dp_tree(struct kunit *test)
tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP);
+ KUNIT_EXPECT_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, (size_t)3);
+ 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);
@@ -1443,10 +1511,10 @@ static void tb_test_tunnel_dp_max_length(struct kunit *test)
tunnel = tb_tunnel_alloc_dp(NULL, in, out, 0, 0);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DP);
+ KUNIT_EXPECT_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, (size_t)3);
+ 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);
@@ -1499,10 +1567,10 @@ static void tb_test_tunnel_usb3(struct kunit *test)
up = &dev1->ports[16];
tunnel1 = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0);
KUNIT_ASSERT_TRUE(test, tunnel1 != NULL);
- KUNIT_EXPECT_EQ(test, tunnel1->type, (enum tb_tunnel_type)TB_TUNNEL_USB3);
+ KUNIT_EXPECT_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, (size_t)2);
+ 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);
@@ -1514,10 +1582,10 @@ static void tb_test_tunnel_usb3(struct kunit *test)
up = &dev2->ports[16];
tunnel2 = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0);
KUNIT_ASSERT_TRUE(test, tunnel2 != NULL);
- KUNIT_EXPECT_EQ(test, tunnel2->type, (enum tb_tunnel_type)TB_TUNNEL_USB3);
+ KUNIT_EXPECT_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, (size_t)2);
+ 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);
@@ -1618,10 +1686,10 @@ static void tb_test_tunnel_dma(struct kunit *test)
tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
+ KUNIT_EXPECT_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, (size_t)2);
+ 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);
@@ -1661,10 +1729,10 @@ static void tb_test_tunnel_dma_rx(struct kunit *test)
tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, -1, -1, 15, 2);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
+ KUNIT_EXPECT_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, (size_t)1);
+ 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);
@@ -1698,10 +1766,10 @@ static void tb_test_tunnel_dma_tx(struct kunit *test)
tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 15, 2, -1, -1);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
+ KUNIT_EXPECT_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, (size_t)1);
+ 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);
@@ -1744,10 +1812,10 @@ static void tb_test_tunnel_dma_chain(struct kunit *test)
port = &dev2->ports[3];
tunnel = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1);
KUNIT_ASSERT_TRUE(test, tunnel != NULL);
- KUNIT_EXPECT_EQ(test, tunnel->type, (enum tb_tunnel_type)TB_TUNNEL_DMA);
+ KUNIT_EXPECT_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, (size_t)2);
+ 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);
@@ -1829,6 +1897,475 @@ static void tb_test_tunnel_dma_match(struct kunit *test)
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_TRUE(test, tunnel != NULL);
+ 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_TRUE(test, tunnel != NULL);
+ 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_TRUE(test, tunnel != NULL);
+ 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_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, 0, 0);
+ KUNIT_ASSERT_TRUE(test, tunnel != NULL);
+ 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_TRUE(test, tunnel != NULL);
+ 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_TRUE(test, tunnel != NULL);
+ 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_TRUE(test, tunnel1 != NULL);
+ 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_TRUE(test, tunnel2 != NULL);
+ 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_TRUE(test, tunnel3 == NULL);
+
+ /*
+ * 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_TRUE(test, tunnel3 != NULL);
+
+ 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 void tb_test_credit_alloc_all(struct kunit *test)
+{
+ struct tb_port *up, *down, *in, *out, *nhi, *port;
+ struct tb_tunnel *pcie_tunnel, *dp_tunnel1, *dp_tunnel2, *usb3_tunnel;
+ struct tb_tunnel *dma_tunnel1, *dma_tunnel2;
+ struct tb_switch *host, *dev;
+ struct tb_path *path;
+
+ /*
+ * 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);
+
+ down = &host->ports[8];
+ up = &dev->ports[9];
+ pcie_tunnel = tb_tunnel_alloc_pci(NULL, up, down);
+ KUNIT_ASSERT_TRUE(test, pcie_tunnel != NULL);
+ 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);
+
+ in = &host->ports[5];
+ out = &dev->ports[13];
+
+ dp_tunnel1 = tb_tunnel_alloc_dp(NULL, in, out, 0, 0);
+ KUNIT_ASSERT_TRUE(test, dp_tunnel1 != NULL);
+ 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);
+
+ in = &host->ports[6];
+ out = &dev->ports[14];
+
+ dp_tunnel2 = tb_tunnel_alloc_dp(NULL, in, out, 0, 0);
+ KUNIT_ASSERT_TRUE(test, dp_tunnel2 != NULL);
+ 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);
+
+ down = &host->ports[12];
+ up = &dev->ports[16];
+ usb3_tunnel = tb_tunnel_alloc_usb3(NULL, up, down, 0, 0);
+ KUNIT_ASSERT_TRUE(test, usb3_tunnel != NULL);
+ 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);
+
+ nhi = &host->ports[7];
+ port = &dev->ports[3];
+
+ dma_tunnel1 = tb_tunnel_alloc_dma(NULL, nhi, port, 8, 1, 8, 1);
+ KUNIT_ASSERT_TRUE(test, dma_tunnel1 != NULL);
+ 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);
+
+ dma_tunnel2 = tb_tunnel_alloc_dma(NULL, nhi, port, 9, 2, 9, 2);
+ KUNIT_ASSERT_TRUE(test, dma_tunnel2 != NULL);
+ 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);
+
+ 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 */
@@ -1906,7 +2443,7 @@ static void tb_test_property_parse(struct kunit *test)
p = tb_property_find(dir, "vendorid", TB_PROPERTY_TYPE_VALUE);
KUNIT_ASSERT_TRUE(test, p != NULL);
- KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0xa27);
+ KUNIT_EXPECT_EQ(test, p->value.immediate, 0xa27);
p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_TEXT);
KUNIT_ASSERT_TRUE(test, p != NULL);
@@ -1914,7 +2451,7 @@ static void tb_test_property_parse(struct kunit *test)
p = tb_property_find(dir, "deviceid", TB_PROPERTY_TYPE_VALUE);
KUNIT_ASSERT_TRUE(test, p != NULL);
- KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0xa);
+ KUNIT_EXPECT_EQ(test, p->value.immediate, 0xa);
p = tb_property_find(dir, "missing", TB_PROPERTY_TYPE_DIRECTORY);
KUNIT_ASSERT_TRUE(test, !p);
@@ -1927,19 +2464,19 @@ static void tb_test_property_parse(struct kunit *test)
p = tb_property_find(network_dir, "prtcid", TB_PROPERTY_TYPE_VALUE);
KUNIT_ASSERT_TRUE(test, p != NULL);
- KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x1);
+ KUNIT_EXPECT_EQ(test, p->value.immediate, 0x1);
p = tb_property_find(network_dir, "prtcvers", TB_PROPERTY_TYPE_VALUE);
KUNIT_ASSERT_TRUE(test, p != NULL);
- KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x1);
+ KUNIT_EXPECT_EQ(test, p->value.immediate, 0x1);
p = tb_property_find(network_dir, "prtcrevs", TB_PROPERTY_TYPE_VALUE);
KUNIT_ASSERT_TRUE(test, p != NULL);
- KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x1);
+ KUNIT_EXPECT_EQ(test, p->value.immediate, 0x1);
p = tb_property_find(network_dir, "prtcstns", TB_PROPERTY_TYPE_VALUE);
KUNIT_ASSERT_TRUE(test, p != NULL);
- KUNIT_EXPECT_EQ(test, p->value.immediate, (u32)0x0);
+ KUNIT_EXPECT_EQ(test, p->value.immediate, 0x0);
p = tb_property_find(network_dir, "deviceid", TB_PROPERTY_TYPE_VALUE);
KUNIT_EXPECT_TRUE(test, !p);
@@ -1960,7 +2497,7 @@ static void tb_test_property_format(struct kunit *test)
KUNIT_ASSERT_TRUE(test, dir != NULL);
ret = tb_property_format_dir(dir, NULL, 0);
- KUNIT_ASSERT_EQ(test, ret, (int)ARRAY_SIZE(root_directory));
+ KUNIT_ASSERT_EQ(test, ret, ARRAY_SIZE(root_directory));
block_len = ret;
@@ -2063,7 +2600,7 @@ static void tb_test_property_copy(struct kunit *test)
/* Compare the resulting property block */
ret = tb_property_format_dir(dst, NULL, 0);
- KUNIT_ASSERT_EQ(test, ret, (int)ARRAY_SIZE(root_directory));
+ KUNIT_ASSERT_EQ(test, ret, ARRAY_SIZE(root_directory));
block = kunit_kzalloc(test, sizeof(root_directory), GFP_KERNEL);
KUNIT_ASSERT_TRUE(test, block != NULL);
@@ -2105,6 +2642,14 @@ static struct kunit_case tb_test_cases[] = {
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_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),