Adding upstream version 6.1.76.upstream/6.1.76upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 811 insertions, 0 deletions

diff --git a/drivers/net/ethernet/engleder/tsnep_selftests.c b/drivers/net/ethernet/engleder/tsnep_selftests.c
new file mode 100644
index 000000000..1581d6b22
--- /dev/null
+++ b/drivers/net/ethernet/engleder/tsnep_selftests.c
@@ -0,0 +1,811 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021 Gerhard Engleder <gerhard@engleder-embedded.com> */
+
+#include "tsnep.h"
+
+#include <net/pkt_sched.h>
+
+enum tsnep_test {
+	TSNEP_TEST_ENABLE = 0,
+	TSNEP_TEST_TAPRIO,
+	TSNEP_TEST_TAPRIO_CHANGE,
+	TSNEP_TEST_TAPRIO_EXTENSION,
+};
+
+static const char tsnep_test_strings[][ETH_GSTRING_LEN] = {
+	"Enable timeout        (offline)",
+	"TAPRIO                (offline)",
+	"TAPRIO change         (offline)",
+	"TAPRIO extension      (offline)",
+};
+
+#define TSNEP_TEST_COUNT (sizeof(tsnep_test_strings) / ETH_GSTRING_LEN)
+
+static bool enable_gc_timeout(struct tsnep_adapter *adapter)
+{
+	iowrite8(TSNEP_GC_ENABLE_TIMEOUT, adapter->addr + TSNEP_GC);
+	if (!(ioread32(adapter->addr + TSNEP_GC) & TSNEP_GC_TIMEOUT_ACTIVE))
+		return false;
+
+	return true;
+}
+
+static bool gc_timeout_signaled(struct tsnep_adapter *adapter)
+{
+	if (ioread32(adapter->addr + TSNEP_GC) & TSNEP_GC_TIMEOUT_SIGNAL)
+		return true;
+
+	return false;
+}
+
+static bool ack_gc_timeout(struct tsnep_adapter *adapter)
+{
+	iowrite8(TSNEP_GC_ENABLE_TIMEOUT, adapter->addr + TSNEP_GC);
+	if (ioread32(adapter->addr + TSNEP_GC) &
+	    (TSNEP_GC_TIMEOUT_ACTIVE | TSNEP_GC_TIMEOUT_SIGNAL))
+		return false;
+	return true;
+}
+
+static bool enable_gc(struct tsnep_adapter *adapter, bool a)
+{
+	u8 enable;
+	u8 active;
+
+	if (a) {
+		enable = TSNEP_GC_ENABLE_A;
+		active = TSNEP_GC_ACTIVE_A;
+	} else {
+		enable = TSNEP_GC_ENABLE_B;
+		active = TSNEP_GC_ACTIVE_B;
+	}
+
+	iowrite8(enable, adapter->addr + TSNEP_GC);
+	if (!(ioread32(adapter->addr + TSNEP_GC) & active))
+		return false;
+
+	return true;
+}
+
+static bool disable_gc(struct tsnep_adapter *adapter)
+{
+	iowrite8(TSNEP_GC_DISABLE, adapter->addr + TSNEP_GC);
+	if (ioread32(adapter->addr + TSNEP_GC) &
+	    (TSNEP_GC_ACTIVE_A | TSNEP_GC_ACTIVE_B))
+		return false;
+
+	return true;
+}
+
+static bool gc_delayed_enable(struct tsnep_adapter *adapter, bool a, int delay)
+{
+	u64 before, after;
+	u32 time;
+	bool enabled;
+
+	if (!disable_gc(adapter))
+		return false;
+
+	before = ktime_get_ns();
+
+	if (!enable_gc_timeout(adapter))
+		return false;
+
+	/* for start time after timeout, the timeout can guarantee, that enable
+	 * is blocked if too late
+	 */
+	time = ioread32(adapter->addr + ECM_SYSTEM_TIME_LOW);
+	time += TSNEP_GC_TIMEOUT;
+	iowrite32(time, adapter->addr + TSNEP_GC_TIME);
+
+	ndelay(delay);
+
+	enabled = enable_gc(adapter, a);
+	after = ktime_get_ns();
+
+	if (delay > TSNEP_GC_TIMEOUT) {
+		/* timeout must have blocked enable */
+		if (enabled)
+			return false;
+	} else if ((after - before) < TSNEP_GC_TIMEOUT * 14 / 16) {
+		/* timeout must not have blocked enable */
+		if (!enabled)
+			return false;
+	}
+
+	if (enabled) {
+		if (gc_timeout_signaled(adapter))
+			return false;
+	} else {
+		if (!gc_timeout_signaled(adapter))
+			return false;
+		if (!ack_gc_timeout(adapter))
+			return false;
+	}
+
+	if (!disable_gc(adapter))
+		return false;
+
+	return true;
+}
+
+static bool tsnep_test_gc_enable(struct tsnep_adapter *adapter)
+{
+	int i;
+
+	iowrite32(0x80000001, adapter->addr + TSNEP_GCL_A + 0);
+	iowrite32(100000, adapter->addr + TSNEP_GCL_A + 4);
+
+	for (i = 0; i < 200000; i += 100) {
+		if (!gc_delayed_enable(adapter, true, i))
+			return false;
+	}
+
+	iowrite32(0x80000001, adapter->addr + TSNEP_GCL_B + 0);
+	iowrite32(100000, adapter->addr + TSNEP_GCL_B + 4);
+
+	for (i = 0; i < 200000; i += 100) {
+		if (!gc_delayed_enable(adapter, false, i))
+			return false;
+	}
+
+	return true;
+}
+
+static void delay_base_time(struct tsnep_adapter *adapter,
+			    struct tc_taprio_qopt_offload *qopt, s64 ms)
+{
+	u64 system_time;
+	u64 base_time = ktime_to_ns(qopt->base_time);
+	u64 n;
+
+	tsnep_get_system_time(adapter, &system_time);
+	system_time += ms * 1000000;
+	n = div64_u64(system_time - base_time, qopt->cycle_time);
+
+	qopt->base_time = ktime_add_ns(qopt->base_time,
+				       (n + 1) * qopt->cycle_time);
+}
+
+static void get_gate_state(struct tsnep_adapter *adapter, u32 *gc, u32 *gc_time,
+			   u64 *system_time)
+{
+	u32 time_high_before;
+	u32 time_low;
+	u32 time_high;
+	u32 gc_time_before;
+
+	time_high = ioread32(adapter->addr + ECM_SYSTEM_TIME_HIGH);
+	*gc_time = ioread32(adapter->addr + TSNEP_GC_TIME);
+	do {
+		time_low = ioread32(adapter->addr + ECM_SYSTEM_TIME_LOW);
+		*gc = ioread32(adapter->addr + TSNEP_GC);
+
+		gc_time_before = *gc_time;
+		*gc_time = ioread32(adapter->addr + TSNEP_GC_TIME);
+		time_high_before = time_high;
+		time_high = ioread32(adapter->addr + ECM_SYSTEM_TIME_HIGH);
+	} while ((time_high != time_high_before) ||
+		 (*gc_time != gc_time_before));
+
+	*system_time = (((u64)time_high) << 32) | ((u64)time_low);
+}
+
+static int get_operation(struct tsnep_gcl *gcl, u64 system_time, u64 *next)
+{
+	u64 n = div64_u64(system_time - gcl->base_time, gcl->cycle_time);
+	u64 cycle_start = gcl->base_time + gcl->cycle_time * n;
+	int i;
+
+	*next = cycle_start;
+	for (i = 0; i < gcl->count; i++) {
+		*next += gcl->operation[i].interval;
+		if (*next > system_time)
+			break;
+	}
+
+	return i;
+}
+
+static bool check_gate(struct tsnep_adapter *adapter)
+{
+	u32 gc_time;
+	u32 gc;
+	u64 system_time;
+	struct tsnep_gcl *curr;
+	struct tsnep_gcl *prev;
+	u64 next_time;
+	u8 gate_open;
+	u8 next_gate_open;
+
+	get_gate_state(adapter, &gc, &gc_time, &system_time);
+
+	if (gc & TSNEP_GC_ACTIVE_A) {
+		curr = &adapter->gcl[0];
+		prev = &adapter->gcl[1];
+	} else if (gc & TSNEP_GC_ACTIVE_B) {
+		curr = &adapter->gcl[1];
+		prev = &adapter->gcl[0];
+	} else {
+		return false;
+	}
+	if (curr->start_time <= system_time) {
+		/* GCL is already active */
+		int index;
+
+		index = get_operation(curr, system_time, &next_time);
+		gate_open = curr->operation[index].properties & TSNEP_GCL_MASK;
+		if (index == curr->count - 1)
+			index = 0;
+		else
+			index++;
+		next_gate_open =
+			curr->operation[index].properties & TSNEP_GCL_MASK;
+	} else if (curr->change) {
+		/* operation of previous GCL is active */
+		int index;
+		u64 start_before;
+		u64 n;
+
+		index = get_operation(prev, system_time, &next_time);
+		next_time = curr->start_time;
+		start_before = prev->base_time;
+		n = div64_u64(curr->start_time - start_before,
+			      prev->cycle_time);
+		start_before += n * prev->cycle_time;
+		if (curr->start_time == start_before)
+			start_before -= prev->cycle_time;
+		if (((start_before + prev->cycle_time_extension) >=
+		     curr->start_time) &&
+		    (curr->start_time - prev->cycle_time_extension <=
+		     system_time)) {
+			/* extend */
+			index = prev->count - 1;
+		}
+		gate_open = prev->operation[index].properties & TSNEP_GCL_MASK;
+		next_gate_open =
+			curr->operation[0].properties & TSNEP_GCL_MASK;
+	} else {
+		/* GCL is waiting for start */
+		next_time = curr->start_time;
+		gate_open = 0xFF;
+		next_gate_open = curr->operation[0].properties & TSNEP_GCL_MASK;
+	}
+
+	if (gc_time != (next_time & 0xFFFFFFFF)) {
+		dev_err(&adapter->pdev->dev, "gate control time 0x%x!=0x%llx\n",
+			gc_time, next_time);
+		return false;
+	}
+	if (((gc & TSNEP_GC_OPEN) >> TSNEP_GC_OPEN_SHIFT) != gate_open) {
+		dev_err(&adapter->pdev->dev,
+			"gate control open 0x%02x!=0x%02x\n",
+			((gc & TSNEP_GC_OPEN) >> TSNEP_GC_OPEN_SHIFT),
+			gate_open);
+		return false;
+	}
+	if (((gc & TSNEP_GC_NEXT_OPEN) >> TSNEP_GC_NEXT_OPEN_SHIFT) !=
+	    next_gate_open) {
+		dev_err(&adapter->pdev->dev,
+			"gate control next open 0x%02x!=0x%02x\n",
+			((gc & TSNEP_GC_NEXT_OPEN) >> TSNEP_GC_NEXT_OPEN_SHIFT),
+			next_gate_open);
+		return false;
+	}
+
+	return true;
+}
+
+static bool check_gate_duration(struct tsnep_adapter *adapter, s64 ms)
+{
+	ktime_t start = ktime_get();
+
+	do {
+		if (!check_gate(adapter))
+			return false;
+	} while (ktime_ms_delta(ktime_get(), start) < ms);
+
+	return true;
+}
+
+static bool enable_check_taprio(struct tsnep_adapter *adapter,
+				struct tc_taprio_qopt_offload *qopt, s64 ms)
+{
+	int retval;
+
+	retval = tsnep_tc_setup(adapter->netdev, TC_SETUP_QDISC_TAPRIO, qopt);
+	if (retval)
+		return false;
+
+	if (!check_gate_duration(adapter, ms))
+		return false;
+
+	return true;
+}
+
+static bool disable_taprio(struct tsnep_adapter *adapter)
+{
+	struct tc_taprio_qopt_offload qopt;
+	int retval;
+
+	memset(&qopt, 0, sizeof(qopt));
+	qopt.enable = 0;
+	retval = tsnep_tc_setup(adapter->netdev, TC_SETUP_QDISC_TAPRIO, &qopt);
+	if (retval)
+		return false;
+
+	return true;
+}
+
+static bool run_taprio(struct tsnep_adapter *adapter,
+		       struct tc_taprio_qopt_offload *qopt, s64 ms)
+{
+	if (!enable_check_taprio(adapter, qopt, ms))
+		return false;
+
+	if (!disable_taprio(adapter))
+		return false;
+
+	return true;
+}
+
+static bool tsnep_test_taprio(struct tsnep_adapter *adapter)
+{
+	struct tc_taprio_qopt_offload *qopt;
+	int i;
+
+	qopt = kzalloc(struct_size(qopt, entries, 255), GFP_KERNEL);
+	if (!qopt)
+		return false;
+	for (i = 0; i < 255; i++)
+		qopt->entries[i].command = TC_TAPRIO_CMD_SET_GATES;
+
+	qopt->enable = 1;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 1500000;
+	qopt->cycle_time_extension = 0;
+	qopt->entries[0].gate_mask = 0x02;
+	qopt->entries[0].interval = 200000;
+	qopt->entries[1].gate_mask = 0x03;
+	qopt->entries[1].interval = 800000;
+	qopt->entries[2].gate_mask = 0x07;
+	qopt->entries[2].interval = 240000;
+	qopt->entries[3].gate_mask = 0x01;
+	qopt->entries[3].interval = 80000;
+	qopt->entries[4].gate_mask = 0x04;
+	qopt->entries[4].interval = 70000;
+	qopt->entries[5].gate_mask = 0x06;
+	qopt->entries[5].interval = 60000;
+	qopt->entries[6].gate_mask = 0x0F;
+	qopt->entries[6].interval = 50000;
+	qopt->num_entries = 7;
+	if (!run_taprio(adapter, qopt, 100))
+		goto failed;
+
+	qopt->enable = 1;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 411854;
+	qopt->cycle_time_extension = 0;
+	qopt->entries[0].gate_mask = 0x17;
+	qopt->entries[0].interval = 23842;
+	qopt->entries[1].gate_mask = 0x16;
+	qopt->entries[1].interval = 13482;
+	qopt->entries[2].gate_mask = 0x15;
+	qopt->entries[2].interval = 49428;
+	qopt->entries[3].gate_mask = 0x14;
+	qopt->entries[3].interval = 38189;
+	qopt->entries[4].gate_mask = 0x13;
+	qopt->entries[4].interval = 92321;
+	qopt->entries[5].gate_mask = 0x12;
+	qopt->entries[5].interval = 71239;
+	qopt->entries[6].gate_mask = 0x11;
+	qopt->entries[6].interval = 69932;
+	qopt->entries[7].gate_mask = 0x10;
+	qopt->entries[7].interval = 53421;
+	qopt->num_entries = 8;
+	if (!run_taprio(adapter, qopt, 100))
+		goto failed;
+
+	qopt->enable = 1;
+	qopt->base_time = ktime_set(0, 0);
+	delay_base_time(adapter, qopt, 12);
+	qopt->cycle_time = 125000;
+	qopt->cycle_time_extension = 0;
+	qopt->entries[0].gate_mask = 0x27;
+	qopt->entries[0].interval = 15000;
+	qopt->entries[1].gate_mask = 0x26;
+	qopt->entries[1].interval = 15000;
+	qopt->entries[2].gate_mask = 0x25;
+	qopt->entries[2].interval = 12500;
+	qopt->entries[3].gate_mask = 0x24;
+	qopt->entries[3].interval = 17500;
+	qopt->entries[4].gate_mask = 0x23;
+	qopt->entries[4].interval = 10000;
+	qopt->entries[5].gate_mask = 0x22;
+	qopt->entries[5].interval = 11000;
+	qopt->entries[6].gate_mask = 0x21;
+	qopt->entries[6].interval = 9000;
+	qopt->entries[7].gate_mask = 0x20;
+	qopt->entries[7].interval = 10000;
+	qopt->entries[8].gate_mask = 0x20;
+	qopt->entries[8].interval = 12500;
+	qopt->entries[9].gate_mask = 0x20;
+	qopt->entries[9].interval = 12500;
+	qopt->num_entries = 10;
+	if (!run_taprio(adapter, qopt, 100))
+		goto failed;
+
+	kfree(qopt);
+
+	return true;
+
+failed:
+	disable_taprio(adapter);
+	kfree(qopt);
+
+	return false;
+}
+
+static bool tsnep_test_taprio_change(struct tsnep_adapter *adapter)
+{
+	struct tc_taprio_qopt_offload *qopt;
+	int i;
+
+	qopt = kzalloc(struct_size(qopt, entries, 255), GFP_KERNEL);
+	if (!qopt)
+		return false;
+	for (i = 0; i < 255; i++)
+		qopt->entries[i].command = TC_TAPRIO_CMD_SET_GATES;
+
+	qopt->enable = 1;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 100000;
+	qopt->cycle_time_extension = 0;
+	qopt->entries[0].gate_mask = 0x30;
+	qopt->entries[0].interval = 20000;
+	qopt->entries[1].gate_mask = 0x31;
+	qopt->entries[1].interval = 80000;
+	qopt->num_entries = 2;
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to identical */
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	delay_base_time(adapter, qopt, 17);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to same cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->entries[0].gate_mask = 0x42;
+	qopt->entries[1].gate_mask = 0x43;
+	delay_base_time(adapter, qopt, 2);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->entries[0].gate_mask = 0x54;
+	qopt->entries[0].interval = 33333;
+	qopt->entries[1].gate_mask = 0x55;
+	qopt->entries[1].interval = 66667;
+	delay_base_time(adapter, qopt, 23);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->entries[0].gate_mask = 0x66;
+	qopt->entries[0].interval = 50000;
+	qopt->entries[1].gate_mask = 0x67;
+	qopt->entries[1].interval = 25000;
+	qopt->entries[2].gate_mask = 0x68;
+	qopt->entries[2].interval = 25000;
+	qopt->num_entries = 3;
+	delay_base_time(adapter, qopt, 11);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to multiple of cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 200000;
+	qopt->entries[0].gate_mask = 0x79;
+	qopt->entries[0].interval = 50000;
+	qopt->entries[1].gate_mask = 0x7A;
+	qopt->entries[1].interval = 150000;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 11);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 1000000;
+	qopt->entries[0].gate_mask = 0x7B;
+	qopt->entries[0].interval = 125000;
+	qopt->entries[1].gate_mask = 0x7C;
+	qopt->entries[1].interval = 250000;
+	qopt->entries[2].gate_mask = 0x7D;
+	qopt->entries[2].interval = 375000;
+	qopt->entries[3].gate_mask = 0x7E;
+	qopt->entries[3].interval = 250000;
+	qopt->num_entries = 4;
+	delay_base_time(adapter, qopt, 3);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to shorter cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 333333;
+	qopt->entries[0].gate_mask = 0x8F;
+	qopt->entries[0].interval = 166666;
+	qopt->entries[1].gate_mask = 0x80;
+	qopt->entries[1].interval = 166667;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 11);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 62500;
+	qopt->entries[0].gate_mask = 0x81;
+	qopt->entries[0].interval = 31250;
+	qopt->entries[1].gate_mask = 0x82;
+	qopt->entries[1].interval = 15625;
+	qopt->entries[2].gate_mask = 0x83;
+	qopt->entries[2].interval = 15625;
+	qopt->num_entries = 3;
+	delay_base_time(adapter, qopt, 1);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to longer cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 400000;
+	qopt->entries[0].gate_mask = 0x84;
+	qopt->entries[0].interval = 100000;
+	qopt->entries[1].gate_mask = 0x85;
+	qopt->entries[1].interval = 100000;
+	qopt->entries[2].gate_mask = 0x86;
+	qopt->entries[2].interval = 100000;
+	qopt->entries[3].gate_mask = 0x87;
+	qopt->entries[3].interval = 100000;
+	qopt->num_entries = 4;
+	delay_base_time(adapter, qopt, 7);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 1700000;
+	qopt->entries[0].gate_mask = 0x88;
+	qopt->entries[0].interval = 200000;
+	qopt->entries[1].gate_mask = 0x89;
+	qopt->entries[1].interval = 300000;
+	qopt->entries[2].gate_mask = 0x8A;
+	qopt->entries[2].interval = 600000;
+	qopt->entries[3].gate_mask = 0x8B;
+	qopt->entries[3].interval = 100000;
+	qopt->entries[4].gate_mask = 0x8C;
+	qopt->entries[4].interval = 500000;
+	qopt->num_entries = 5;
+	delay_base_time(adapter, qopt, 6);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	if (!disable_taprio(adapter))
+		goto failed;
+
+	kfree(qopt);
+
+	return true;
+
+failed:
+	disable_taprio(adapter);
+	kfree(qopt);
+
+	return false;
+}
+
+static bool tsnep_test_taprio_extension(struct tsnep_adapter *adapter)
+{
+	struct tc_taprio_qopt_offload *qopt;
+	int i;
+
+	qopt = kzalloc(struct_size(qopt, entries, 255), GFP_KERNEL);
+	if (!qopt)
+		return false;
+	for (i = 0; i < 255; i++)
+		qopt->entries[i].command = TC_TAPRIO_CMD_SET_GATES;
+
+	qopt->enable = 1;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 100000;
+	qopt->cycle_time_extension = 50000;
+	qopt->entries[0].gate_mask = 0x90;
+	qopt->entries[0].interval = 20000;
+	qopt->entries[1].gate_mask = 0x91;
+	qopt->entries[1].interval = 80000;
+	qopt->num_entries = 2;
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to different phase */
+	qopt->base_time = ktime_set(0, 50000);
+	qopt->entries[0].gate_mask = 0x92;
+	qopt->entries[0].interval = 33000;
+	qopt->entries[1].gate_mask = 0x93;
+	qopt->entries[1].interval = 67000;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 2);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to different phase and longer cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 1000000;
+	qopt->cycle_time_extension = 700000;
+	qopt->entries[0].gate_mask = 0x94;
+	qopt->entries[0].interval = 400000;
+	qopt->entries[1].gate_mask = 0x95;
+	qopt->entries[1].interval = 600000;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 7);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 700000);
+	qopt->cycle_time = 2000000;
+	qopt->cycle_time_extension = 1900000;
+	qopt->entries[0].gate_mask = 0x96;
+	qopt->entries[0].interval = 400000;
+	qopt->entries[1].gate_mask = 0x97;
+	qopt->entries[1].interval = 1600000;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 9);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to different phase and shorter cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 1500000;
+	qopt->cycle_time_extension = 700000;
+	qopt->entries[0].gate_mask = 0x98;
+	qopt->entries[0].interval = 400000;
+	qopt->entries[1].gate_mask = 0x99;
+	qopt->entries[1].interval = 600000;
+	qopt->entries[2].gate_mask = 0x9A;
+	qopt->entries[2].interval = 500000;
+	qopt->num_entries = 3;
+	delay_base_time(adapter, qopt, 3);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 100000);
+	qopt->cycle_time = 500000;
+	qopt->cycle_time_extension = 300000;
+	qopt->entries[0].gate_mask = 0x9B;
+	qopt->entries[0].interval = 150000;
+	qopt->entries[1].gate_mask = 0x9C;
+	qopt->entries[1].interval = 350000;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 9);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	/* change to different cycle time */
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 1000000;
+	qopt->cycle_time_extension = 700000;
+	qopt->entries[0].gate_mask = 0xAD;
+	qopt->entries[0].interval = 400000;
+	qopt->entries[1].gate_mask = 0xAE;
+	qopt->entries[1].interval = 300000;
+	qopt->entries[2].gate_mask = 0xAF;
+	qopt->entries[2].interval = 300000;
+	qopt->num_entries = 3;
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 400000;
+	qopt->cycle_time_extension = 100000;
+	qopt->entries[0].gate_mask = 0xA0;
+	qopt->entries[0].interval = 200000;
+	qopt->entries[1].gate_mask = 0xA1;
+	qopt->entries[1].interval = 200000;
+	qopt->num_entries = 2;
+	delay_base_time(adapter, qopt, 19);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 500000;
+	qopt->cycle_time_extension = 499999;
+	qopt->entries[0].gate_mask = 0xB2;
+	qopt->entries[0].interval = 100000;
+	qopt->entries[1].gate_mask = 0xB3;
+	qopt->entries[1].interval = 100000;
+	qopt->entries[2].gate_mask = 0xB4;
+	qopt->entries[2].interval = 100000;
+	qopt->entries[3].gate_mask = 0xB5;
+	qopt->entries[3].interval = 200000;
+	qopt->num_entries = 4;
+	delay_base_time(adapter, qopt, 19);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+	qopt->base_time = ktime_set(0, 0);
+	qopt->cycle_time = 6000000;
+	qopt->cycle_time_extension = 5999999;
+	qopt->entries[0].gate_mask = 0xC6;
+	qopt->entries[0].interval = 1000000;
+	qopt->entries[1].gate_mask = 0xC7;
+	qopt->entries[1].interval = 1000000;
+	qopt->entries[2].gate_mask = 0xC8;
+	qopt->entries[2].interval = 1000000;
+	qopt->entries[3].gate_mask = 0xC9;
+	qopt->entries[3].interval = 1500000;
+	qopt->entries[4].gate_mask = 0xCA;
+	qopt->entries[4].interval = 1500000;
+	qopt->num_entries = 5;
+	delay_base_time(adapter, qopt, 1);
+	if (!enable_check_taprio(adapter, qopt, 100))
+		goto failed;
+
+	if (!disable_taprio(adapter))
+		goto failed;
+
+	kfree(qopt);
+
+	return true;
+
+failed:
+	disable_taprio(adapter);
+	kfree(qopt);
+
+	return false;
+}
+
+int tsnep_ethtool_get_test_count(void)
+{
+	return TSNEP_TEST_COUNT;
+}
+
+void tsnep_ethtool_get_test_strings(u8 *data)
+{
+	memcpy(data, tsnep_test_strings, sizeof(tsnep_test_strings));
+}
+
+void tsnep_ethtool_self_test(struct net_device *netdev,
+			     struct ethtool_test *eth_test, u64 *data)
+{
+	struct tsnep_adapter *adapter = netdev_priv(netdev);
+
+	eth_test->len = TSNEP_TEST_COUNT;
+
+	if (eth_test->flags != ETH_TEST_FL_OFFLINE) {
+		/* no tests are done online */
+		data[TSNEP_TEST_ENABLE] = 0;
+		data[TSNEP_TEST_TAPRIO] = 0;
+		data[TSNEP_TEST_TAPRIO_CHANGE] = 0;
+		data[TSNEP_TEST_TAPRIO_EXTENSION] = 0;
+
+		return;
+	}
+
+	if (tsnep_test_gc_enable(adapter)) {
+		data[TSNEP_TEST_ENABLE] = 0;
+	} else {
+		eth_test->flags |= ETH_TEST_FL_FAILED;
+		data[TSNEP_TEST_ENABLE] = 1;
+	}
+
+	if (tsnep_test_taprio(adapter)) {
+		data[TSNEP_TEST_TAPRIO] = 0;
+	} else {
+		eth_test->flags |= ETH_TEST_FL_FAILED;
+		data[TSNEP_TEST_TAPRIO] = 1;
+	}
+
+	if (tsnep_test_taprio_change(adapter)) {
+		data[TSNEP_TEST_TAPRIO_CHANGE] = 0;
+	} else {
+		eth_test->flags |= ETH_TEST_FL_FAILED;
+		data[TSNEP_TEST_TAPRIO_CHANGE] = 1;
+	}
+
+	if (tsnep_test_taprio_extension(adapter)) {
+		data[TSNEP_TEST_TAPRIO_EXTENSION] = 0;
+	} else {
+		eth_test->flags |= ETH_TEST_FL_FAILED;
+		data[TSNEP_TEST_TAPRIO_EXTENSION] = 1;
+	}
+}