drm/xe/kunit: Add GuC Relay kunit tests
Add few tests to make sure that some negative and normal use scenarios of the GuC Relay are implemented correctly. Reviewed-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Link: https://lore.kernel.org/r/20240104222031.277-10-michal.wajdeczko@intel.com Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
This commit is contained in:
Michal Wajdeczko
parent
4469eae6bc
commit
927b042a8d
522
drivers/gpu/drm/xe/tests/xe_guc_relay_test.c
Normal file
522
drivers/gpu/drm/xe/tests/xe_guc_relay_test.c
Normal file
@ -0,0 +1,522 @@
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// SPDX-License-Identifier: GPL-2.0 AND MIT
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#include <kunit/static_stub.h>
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#include <kunit/test.h>
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#include <kunit/test-bug.h>
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#include "xe_device.h"
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#include "xe_kunit_helpers.h"
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#include "xe_pci_test.h"
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#define TEST_RID 1234
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#define TEST_VFID 5
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#define TEST_LEN 6
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#define TEST_ACTION 0xa
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#define TEST_DATA(n) (0xd0 + (n))
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static int replacement_relay_get_totalvfs(struct xe_guc_relay *relay)
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{
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return TEST_VFID;
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}
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static int relay_test_init(struct kunit *test)
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{
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struct xe_pci_fake_data fake = {
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.sriov_mode = XE_SRIOV_MODE_PF,
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.platform = XE_TIGERLAKE, /* some random platform */
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.subplatform = XE_SUBPLATFORM_NONE,
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};
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struct xe_guc_relay *relay;
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struct xe_device *xe;
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test->priv = &fake;
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xe_kunit_helper_xe_device_test_init(test);
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xe = test->priv;
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KUNIT_ASSERT_EQ(test, xe_sriov_init(xe), 0);
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relay = &xe_device_get_gt(xe, 0)->uc.guc.relay;
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kunit_activate_static_stub(test, relay_get_totalvfs,
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replacement_relay_get_totalvfs);
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KUNIT_ASSERT_EQ(test, xe_guc_relay_init(relay), 0);
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KUNIT_EXPECT_TRUE(test, relay_is_ready(relay));
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relay->last_rid = TEST_RID - 1;
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test->priv = relay;
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return 0;
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}
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static const u32 TEST_MSG[TEST_LEN] = {
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FIELD_PREP_CONST(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP_CONST(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_EVENT) |
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FIELD_PREP_CONST(GUC_HXG_EVENT_MSG_0_ACTION, TEST_ACTION) |
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FIELD_PREP_CONST(GUC_HXG_EVENT_MSG_0_DATA0, TEST_DATA(0)),
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TEST_DATA(1), TEST_DATA(2), TEST_DATA(3), TEST_DATA(4),
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};
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static int replacement_xe_guc_ct_send_recv_always_fails(struct xe_guc_ct *ct,
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const u32 *msg, u32 len,
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u32 *response_buffer)
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{
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struct kunit *test = kunit_get_current_test();
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ct);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, msg);
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KUNIT_ASSERT_GE(test, len, GUC_HXG_MSG_MIN_LEN);
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return -ECOMM;
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}
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static int replacement_xe_guc_ct_send_recv_expects_pf2guc_relay(struct xe_guc_ct *ct,
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const u32 *msg, u32 len,
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u32 *response_buffer)
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{
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struct kunit *test = kunit_get_current_test();
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ct);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, msg);
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KUNIT_ASSERT_GE(test, len, PF2GUC_RELAY_TO_VF_REQUEST_MSG_MIN_LEN);
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KUNIT_ASSERT_EQ(test, len, PF2GUC_RELAY_TO_VF_REQUEST_MSG_MIN_LEN + TEST_LEN);
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KUNIT_EXPECT_EQ(test, GUC_HXG_ORIGIN_HOST, FIELD_GET(GUC_HXG_MSG_0_ORIGIN, msg[0]));
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KUNIT_EXPECT_EQ(test, GUC_HXG_TYPE_REQUEST, FIELD_GET(GUC_HXG_MSG_0_TYPE, msg[0]));
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KUNIT_EXPECT_EQ(test, XE_GUC_ACTION_PF2GUC_RELAY_TO_VF,
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FIELD_GET(GUC_HXG_REQUEST_MSG_0_ACTION, msg[0]));
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KUNIT_EXPECT_EQ(test, TEST_VFID,
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FIELD_GET(PF2GUC_RELAY_TO_VF_REQUEST_MSG_1_VFID, msg[1]));
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KUNIT_EXPECT_EQ(test, TEST_RID,
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FIELD_GET(PF2GUC_RELAY_TO_VF_REQUEST_MSG_2_RELAY_ID, msg[2]));
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KUNIT_EXPECT_MEMEQ(test, TEST_MSG, msg + PF2GUC_RELAY_TO_VF_REQUEST_MSG_MIN_LEN,
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sizeof(u32) * TEST_LEN);
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return 0;
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}
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static const u32 test_guc2pf[GUC2PF_RELAY_FROM_VF_EVENT_MSG_MAX_LEN] = {
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/* transport */
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FIELD_PREP_CONST(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_GUC) |
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FIELD_PREP_CONST(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_EVENT) |
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FIELD_PREP_CONST(GUC_HXG_EVENT_MSG_0_ACTION, XE_GUC_ACTION_GUC2PF_RELAY_FROM_VF),
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FIELD_PREP_CONST(GUC2PF_RELAY_FROM_VF_EVENT_MSG_1_VFID, TEST_VFID),
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FIELD_PREP_CONST(GUC2PF_RELAY_FROM_VF_EVENT_MSG_2_RELAY_ID, TEST_RID),
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/* payload */
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FIELD_PREP_CONST(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP_CONST(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_RESPONSE_SUCCESS),
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};
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static const u32 test_guc2vf[GUC2VF_RELAY_FROM_PF_EVENT_MSG_MAX_LEN] = {
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/* transport */
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FIELD_PREP_CONST(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_GUC) |
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FIELD_PREP_CONST(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_EVENT) |
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FIELD_PREP_CONST(GUC_HXG_EVENT_MSG_0_ACTION, XE_GUC_ACTION_GUC2VF_RELAY_FROM_PF),
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FIELD_PREP_CONST(GUC2VF_RELAY_FROM_PF_EVENT_MSG_1_RELAY_ID, TEST_RID),
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/* payload */
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FIELD_PREP_CONST(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP_CONST(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_RESPONSE_SUCCESS),
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};
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static void pf_rejects_guc2pf_too_short(struct kunit *test)
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{
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const u32 len = GUC2PF_RELAY_FROM_VF_EVENT_MSG_MIN_LEN - 1;
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struct xe_guc_relay *relay = test->priv;
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const u32 *msg = test_guc2pf;
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KUNIT_ASSERT_EQ(test, -EPROTO, xe_guc_relay_process_guc2pf(relay, msg, len));
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}
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static void pf_rejects_guc2pf_too_long(struct kunit *test)
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{
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const u32 len = GUC2PF_RELAY_FROM_VF_EVENT_MSG_MAX_LEN + 1;
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struct xe_guc_relay *relay = test->priv;
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const u32 *msg = test_guc2pf;
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KUNIT_ASSERT_EQ(test, -EMSGSIZE, xe_guc_relay_process_guc2pf(relay, msg, len));
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}
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static void pf_rejects_guc2pf_no_payload(struct kunit *test)
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{
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const u32 len = GUC2PF_RELAY_FROM_VF_EVENT_MSG_MIN_LEN;
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struct xe_guc_relay *relay = test->priv;
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const u32 *msg = test_guc2pf;
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KUNIT_ASSERT_EQ(test, -EPROTO, xe_guc_relay_process_guc2pf(relay, msg, len));
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}
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static void pf_fails_no_payload(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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const u32 msg = 0;
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KUNIT_ASSERT_EQ(test, -EPROTO, relay_process_msg(relay, TEST_VFID, TEST_RID, &msg, 0));
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}
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static void pf_fails_bad_origin(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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static const u32 msg[] = {
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FIELD_PREP_CONST(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_GUC) |
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FIELD_PREP_CONST(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_RESPONSE_SUCCESS),
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};
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u32 len = ARRAY_SIZE(msg);
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KUNIT_ASSERT_EQ(test, -EPROTO, relay_process_msg(relay, TEST_VFID, TEST_RID, msg, len));
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}
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static void pf_fails_bad_type(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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const u32 msg[] = {
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FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP(GUC_HXG_MSG_0_TYPE, 4), /* only 4 is undefined */
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};
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u32 len = ARRAY_SIZE(msg);
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KUNIT_ASSERT_EQ(test, -EBADRQC, relay_process_msg(relay, TEST_VFID, TEST_RID, msg, len));
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}
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static void pf_txn_reports_error(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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struct relay_transaction *txn;
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txn = __relay_get_transaction(relay, false, TEST_VFID, TEST_RID,
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TEST_MSG, TEST_LEN, NULL, 0);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, txn);
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kunit_activate_static_stub(test, xe_guc_ct_send_recv,
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replacement_xe_guc_ct_send_recv_always_fails);
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KUNIT_EXPECT_EQ(test, -ECOMM, relay_send_transaction(relay, txn));
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relay_release_transaction(relay, txn);
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}
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static void pf_txn_sends_pf2guc(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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struct relay_transaction *txn;
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txn = __relay_get_transaction(relay, false, TEST_VFID, TEST_RID,
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TEST_MSG, TEST_LEN, NULL, 0);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, txn);
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kunit_activate_static_stub(test, xe_guc_ct_send_recv,
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replacement_xe_guc_ct_send_recv_expects_pf2guc_relay);
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KUNIT_ASSERT_EQ(test, 0, relay_send_transaction(relay, txn));
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relay_release_transaction(relay, txn);
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}
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static void pf_sends_pf2guc(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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kunit_activate_static_stub(test, xe_guc_ct_send_recv,
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replacement_xe_guc_ct_send_recv_expects_pf2guc_relay);
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KUNIT_ASSERT_EQ(test, 0,
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xe_guc_relay_send_to_vf(relay, TEST_VFID,
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TEST_MSG, TEST_LEN, NULL, 0));
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}
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static int replacement_xe_guc_ct_send_recv_loopback_relay(struct xe_guc_ct *ct,
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const u32 *msg, u32 len,
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u32 *response_buffer)
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{
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struct kunit *test = kunit_get_current_test();
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struct xe_guc_relay *relay = test->priv;
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u32 *reply = kunit_kzalloc(test, len * sizeof(u32), GFP_KERNEL);
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int (*guc2relay)(struct xe_guc_relay *, const u32 *, u32);
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u32 action;
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int err;
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ct);
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KUNIT_ASSERT_NOT_ERR_OR_NULL(test, msg);
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KUNIT_ASSERT_GE(test, len, GUC_HXG_MSG_MIN_LEN);
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KUNIT_ASSERT_EQ(test, GUC_HXG_TYPE_REQUEST,
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FIELD_GET(GUC_HXG_MSG_0_TYPE, msg[0]));
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KUNIT_ASSERT_GE(test, len, GUC_HXG_REQUEST_MSG_MIN_LEN);
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KUNIT_ASSERT_NOT_NULL(test, reply);
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switch (FIELD_GET(GUC_HXG_REQUEST_MSG_0_ACTION, msg[0])) {
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case XE_GUC_ACTION_PF2GUC_RELAY_TO_VF:
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KUNIT_ASSERT_GE(test, len, PF2GUC_RELAY_TO_VF_REQUEST_MSG_MIN_LEN);
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action = XE_GUC_ACTION_GUC2PF_RELAY_FROM_VF;
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guc2relay = xe_guc_relay_process_guc2pf;
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break;
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case XE_GUC_ACTION_VF2GUC_RELAY_TO_PF:
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KUNIT_ASSERT_GE(test, len, VF2GUC_RELAY_TO_PF_REQUEST_MSG_MIN_LEN);
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action = XE_GUC_ACTION_GUC2VF_RELAY_FROM_PF;
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guc2relay = xe_guc_relay_process_guc2vf;
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break;
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default:
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KUNIT_FAIL(test, "bad RELAY action %#x", msg[0]);
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return -EINVAL;
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}
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reply[0] = FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_GUC) |
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FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_EVENT) |
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FIELD_PREP(GUC_HXG_EVENT_MSG_0_ACTION, action);
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memcpy(reply + 1, msg + 1, sizeof(u32) * (len - 1));
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err = guc2relay(relay, reply, len);
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KUNIT_EXPECT_EQ(test, err, 0);
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return err;
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}
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static void test_requires_relay_testloop(struct kunit *test)
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{
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/*
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* The debug relay action GUC_RELAY_ACTION_VFXPF_TESTLOOP is available
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* only on builds with CONFIG_DRM_XE_DEBUG_SRIOV enabled.
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* See "kunit.py --kconfig_add" option if it's missing.
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*/
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if (!IS_ENABLED(CONFIG_DRM_XE_DEBUG_SRIOV))
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kunit_skip(test, "requires %s\n", __stringify(CONFIG_DRM_XE_DEBUG_SRIOV));
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}
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static void pf_loopback_nop(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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u32 request[] = {
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FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
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FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_RELAY_ACTION_VFXPF_TESTLOOP) |
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FIELD_PREP(GUC_HXG_REQUEST_MSG_0_DATA0, VFXPF_TESTLOOP_OPCODE_NOP),
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};
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u32 response[GUC_HXG_RESPONSE_MSG_MIN_LEN];
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int ret;
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test_requires_relay_testloop(test);
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kunit_activate_static_stub(test, relay_kick_worker, relay_process_incoming_action);
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kunit_activate_static_stub(test, xe_guc_ct_send_recv,
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replacement_xe_guc_ct_send_recv_loopback_relay);
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ret = xe_guc_relay_send_to_vf(relay, TEST_VFID,
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request, ARRAY_SIZE(request),
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response, ARRAY_SIZE(response));
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KUNIT_ASSERT_EQ(test, ret, GUC_HXG_RESPONSE_MSG_MIN_LEN);
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KUNIT_EXPECT_EQ(test, FIELD_GET(GUC_HXG_MSG_0_ORIGIN, response[0]),
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GUC_HXG_ORIGIN_HOST);
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KUNIT_EXPECT_EQ(test, FIELD_GET(GUC_HXG_MSG_0_TYPE, response[0]),
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GUC_HXG_TYPE_RESPONSE_SUCCESS);
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KUNIT_EXPECT_EQ(test, FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, response[0]), 0);
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}
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static void pf_loopback_echo(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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u32 request[] = {
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FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
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FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_RELAY_ACTION_VFXPF_TESTLOOP) |
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FIELD_PREP(GUC_HXG_REQUEST_MSG_0_DATA0, VFXPF_TESTLOOP_OPCODE_ECHO),
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TEST_DATA(1), TEST_DATA(2), TEST_DATA(3), TEST_DATA(4),
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};
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u32 response[ARRAY_SIZE(request)];
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unsigned int n;
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int ret;
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test_requires_relay_testloop(test);
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kunit_activate_static_stub(test, relay_kick_worker, relay_process_incoming_action);
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kunit_activate_static_stub(test, xe_guc_ct_send_recv,
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replacement_xe_guc_ct_send_recv_loopback_relay);
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ret = xe_guc_relay_send_to_vf(relay, TEST_VFID,
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request, ARRAY_SIZE(request),
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response, ARRAY_SIZE(response));
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KUNIT_ASSERT_EQ(test, ret, ARRAY_SIZE(response));
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KUNIT_EXPECT_EQ(test, FIELD_GET(GUC_HXG_MSG_0_ORIGIN, response[0]),
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GUC_HXG_ORIGIN_HOST);
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KUNIT_EXPECT_EQ(test, FIELD_GET(GUC_HXG_MSG_0_TYPE, response[0]),
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GUC_HXG_TYPE_RESPONSE_SUCCESS);
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KUNIT_EXPECT_EQ(test, FIELD_GET(GUC_HXG_RESPONSE_MSG_0_DATA0, response[0]),
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ARRAY_SIZE(response));
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for (n = GUC_HXG_RESPONSE_MSG_MIN_LEN; n < ret; n++)
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KUNIT_EXPECT_EQ(test, request[n], response[n]);
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}
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static void pf_loopback_fail(struct kunit *test)
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{
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struct xe_guc_relay *relay = test->priv;
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u32 request[] = {
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FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
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FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
|
||||
FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_RELAY_ACTION_VFXPF_TESTLOOP) |
|
||||
FIELD_PREP(GUC_HXG_REQUEST_MSG_0_DATA0, VFXPF_TESTLOOP_OPCODE_FAIL),
|
||||
};
|
||||
u32 response[GUC_HXG_RESPONSE_MSG_MIN_LEN];
|
||||
int ret;
|
||||
|
||||
test_requires_relay_testloop(test);
|
||||
|
||||
kunit_activate_static_stub(test, relay_kick_worker, relay_process_incoming_action);
|
||||
kunit_activate_static_stub(test, xe_guc_ct_send_recv,
|
||||
replacement_xe_guc_ct_send_recv_loopback_relay);
|
||||
ret = xe_guc_relay_send_to_vf(relay, TEST_VFID,
|
||||
request, ARRAY_SIZE(request),
|
||||
response, ARRAY_SIZE(response));
|
||||
KUNIT_ASSERT_EQ(test, ret, -EREMOTEIO);
|
||||
}
|
||||
|
||||
static void pf_loopback_busy(struct kunit *test)
|
||||
{
|
||||
struct xe_guc_relay *relay = test->priv;
|
||||
u32 request[] = {
|
||||
FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
|
||||
FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
|
||||
FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_RELAY_ACTION_VFXPF_TESTLOOP) |
|
||||
FIELD_PREP(GUC_HXG_REQUEST_MSG_0_DATA0, VFXPF_TESTLOOP_OPCODE_BUSY),
|
||||
TEST_DATA(0xb),
|
||||
};
|
||||
u32 response[GUC_HXG_RESPONSE_MSG_MIN_LEN];
|
||||
int ret;
|
||||
|
||||
test_requires_relay_testloop(test);
|
||||
|
||||
kunit_activate_static_stub(test, relay_testonly_nop, relay_process_incoming_action);
|
||||
kunit_activate_static_stub(test, relay_kick_worker, relay_process_incoming_action);
|
||||
kunit_activate_static_stub(test, xe_guc_ct_send_recv,
|
||||
replacement_xe_guc_ct_send_recv_loopback_relay);
|
||||
ret = xe_guc_relay_send_to_vf(relay, TEST_VFID,
|
||||
request, ARRAY_SIZE(request),
|
||||
response, ARRAY_SIZE(response));
|
||||
KUNIT_ASSERT_EQ(test, ret, GUC_HXG_RESPONSE_MSG_MIN_LEN);
|
||||
}
|
||||
|
||||
static void pf_loopback_retry(struct kunit *test)
|
||||
{
|
||||
struct xe_guc_relay *relay = test->priv;
|
||||
u32 request[] = {
|
||||
FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
|
||||
FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_REQUEST) |
|
||||
FIELD_PREP(GUC_HXG_REQUEST_MSG_0_ACTION, GUC_RELAY_ACTION_VFXPF_TESTLOOP) |
|
||||
FIELD_PREP(GUC_HXG_REQUEST_MSG_0_DATA0, VFXPF_TESTLOOP_OPCODE_RETRY),
|
||||
TEST_DATA(0xd), TEST_DATA(0xd),
|
||||
};
|
||||
u32 response[GUC_HXG_RESPONSE_MSG_MIN_LEN];
|
||||
int ret;
|
||||
|
||||
test_requires_relay_testloop(test);
|
||||
|
||||
kunit_activate_static_stub(test, relay_kick_worker, relay_process_incoming_action);
|
||||
kunit_activate_static_stub(test, xe_guc_ct_send_recv,
|
||||
replacement_xe_guc_ct_send_recv_loopback_relay);
|
||||
ret = xe_guc_relay_send_to_vf(relay, TEST_VFID,
|
||||
request, ARRAY_SIZE(request),
|
||||
response, ARRAY_SIZE(response));
|
||||
KUNIT_ASSERT_EQ(test, ret, GUC_HXG_RESPONSE_MSG_MIN_LEN);
|
||||
}
|
||||
|
||||
static struct kunit_case pf_relay_test_cases[] = {
|
||||
KUNIT_CASE(pf_rejects_guc2pf_too_short),
|
||||
KUNIT_CASE(pf_rejects_guc2pf_too_long),
|
||||
KUNIT_CASE(pf_rejects_guc2pf_no_payload),
|
||||
KUNIT_CASE(pf_fails_no_payload),
|
||||
KUNIT_CASE(pf_fails_bad_origin),
|
||||
KUNIT_CASE(pf_fails_bad_type),
|
||||
KUNIT_CASE(pf_txn_reports_error),
|
||||
KUNIT_CASE(pf_txn_sends_pf2guc),
|
||||
KUNIT_CASE(pf_sends_pf2guc),
|
||||
KUNIT_CASE(pf_loopback_nop),
|
||||
KUNIT_CASE(pf_loopback_echo),
|
||||
KUNIT_CASE(pf_loopback_fail),
|
||||
KUNIT_CASE_SLOW(pf_loopback_busy),
|
||||
KUNIT_CASE_SLOW(pf_loopback_retry),
|
||||
{}
|
||||
};
|
||||
|
||||
static struct kunit_suite pf_relay_suite = {
|
||||
.name = "pf_relay",
|
||||
.test_cases = pf_relay_test_cases,
|
||||
.init = relay_test_init,
|
||||
};
|
||||
|
||||
static void vf_rejects_guc2vf_too_short(struct kunit *test)
|
||||
{
|
||||
const u32 len = GUC2VF_RELAY_FROM_PF_EVENT_MSG_MIN_LEN - 1;
|
||||
struct xe_guc_relay *relay = test->priv;
|
||||
const u32 *msg = test_guc2vf;
|
||||
|
||||
KUNIT_ASSERT_EQ(test, -EPROTO, xe_guc_relay_process_guc2vf(relay, msg, len));
|
||||
}
|
||||
|
||||
static void vf_rejects_guc2vf_too_long(struct kunit *test)
|
||||
{
|
||||
const u32 len = GUC2VF_RELAY_FROM_PF_EVENT_MSG_MAX_LEN + 1;
|
||||
struct xe_guc_relay *relay = test->priv;
|
||||
const u32 *msg = test_guc2vf;
|
||||
|
||||
KUNIT_ASSERT_EQ(test, -EMSGSIZE, xe_guc_relay_process_guc2vf(relay, msg, len));
|
||||
}
|
||||
|
||||
static void vf_rejects_guc2vf_no_payload(struct kunit *test)
|
||||
{
|
||||
const u32 len = GUC2VF_RELAY_FROM_PF_EVENT_MSG_MIN_LEN;
|
||||
struct xe_guc_relay *relay = test->priv;
|
||||
const u32 *msg = test_guc2vf;
|
||||
|
||||
KUNIT_ASSERT_EQ(test, -EPROTO, xe_guc_relay_process_guc2vf(relay, msg, len));
|
||||
}
|
||||
|
||||
static struct kunit_case vf_relay_test_cases[] = {
|
||||
KUNIT_CASE(vf_rejects_guc2vf_too_short),
|
||||
KUNIT_CASE(vf_rejects_guc2vf_too_long),
|
||||
KUNIT_CASE(vf_rejects_guc2vf_no_payload),
|
||||
{}
|
||||
};
|
||||
|
||||
static struct kunit_suite vf_relay_suite = {
|
||||
.name = "vf_relay",
|
||||
.test_cases = vf_relay_test_cases,
|
||||
.init = relay_test_init,
|
||||
};
|
||||
|
||||
static void xe_drops_guc2pf_if_not_ready(struct kunit *test)
|
||||
{
|
||||
struct xe_device *xe = test->priv;
|
||||
struct xe_guc_relay *relay = &xe_device_get_gt(xe, 0)->uc.guc.relay;
|
||||
const u32 *msg = test_guc2pf;
|
||||
u32 len = GUC2PF_RELAY_FROM_VF_EVENT_MSG_MIN_LEN + GUC_RELAY_MSG_MIN_LEN;
|
||||
|
||||
KUNIT_ASSERT_EQ(test, -ENODEV, xe_guc_relay_process_guc2pf(relay, msg, len));
|
||||
}
|
||||
|
||||
static void xe_drops_guc2vf_if_not_ready(struct kunit *test)
|
||||
{
|
||||
struct xe_device *xe = test->priv;
|
||||
struct xe_guc_relay *relay = &xe_device_get_gt(xe, 0)->uc.guc.relay;
|
||||
const u32 *msg = test_guc2vf;
|
||||
u32 len = GUC2VF_RELAY_FROM_PF_EVENT_MSG_MIN_LEN + GUC_RELAY_MSG_MIN_LEN;
|
||||
|
||||
KUNIT_ASSERT_EQ(test, -ENODEV, xe_guc_relay_process_guc2vf(relay, msg, len));
|
||||
}
|
||||
|
||||
static void xe_rejects_send_if_not_ready(struct kunit *test)
|
||||
{
|
||||
struct xe_device *xe = test->priv;
|
||||
struct xe_guc_relay *relay = &xe_device_get_gt(xe, 0)->uc.guc.relay;
|
||||
u32 msg[GUC_RELAY_MSG_MIN_LEN];
|
||||
u32 len = ARRAY_SIZE(msg);
|
||||
|
||||
KUNIT_ASSERT_EQ(test, -ENODEV, xe_guc_relay_send_to_pf(relay, msg, len, NULL, 0));
|
||||
KUNIT_ASSERT_EQ(test, -ENODEV, relay_send_to(relay, TEST_VFID, msg, len, NULL, 0));
|
||||
}
|
||||
|
||||
static struct kunit_case no_relay_test_cases[] = {
|
||||
KUNIT_CASE(xe_drops_guc2pf_if_not_ready),
|
||||
KUNIT_CASE(xe_drops_guc2vf_if_not_ready),
|
||||
KUNIT_CASE(xe_rejects_send_if_not_ready),
|
||||
{}
|
||||
};
|
||||
|
||||
static struct kunit_suite no_relay_suite = {
|
||||
.name = "no_relay",
|
||||
.test_cases = no_relay_test_cases,
|
||||
.init = xe_kunit_helper_xe_device_test_init,
|
||||
};
|
||||
|
||||
kunit_test_suites(&no_relay_suite,
|
||||
&pf_relay_suite,
|
||||
&vf_relay_suite);
|
||||
@ -8,6 +8,8 @@
|
||||
|
||||
#include <drm/drm_managed.h>
|
||||
|
||||
#include <kunit/static_stub.h>
|
||||
|
||||
#include "abi/guc_actions_sriov_abi.h"
|
||||
#include "abi/guc_relay_actions_abi.h"
|
||||
#include "abi/guc_relay_communication_abi.h"
|
||||
@ -60,6 +62,7 @@ static int relay_get_totalvfs(struct xe_guc_relay *relay)
|
||||
struct xe_device *xe = relay_to_xe(relay);
|
||||
struct pci_dev *pdev = to_pci_dev(xe->drm.dev);
|
||||
|
||||
KUNIT_STATIC_STUB_REDIRECT(relay_get_totalvfs, relay);
|
||||
return IS_SRIOV_VF(xe) ? 0 : pci_sriov_get_totalvfs(pdev);
|
||||
}
|
||||
|
||||
@ -392,6 +395,11 @@ static u32 prepare_error_reply(u32 *msg, u32 error, u32 hint)
|
||||
return GUC_HXG_FAILURE_MSG_LEN;
|
||||
}
|
||||
|
||||
static void relay_testonly_nop(struct xe_guc_relay *relay)
|
||||
{
|
||||
KUNIT_STATIC_STUB_REDIRECT(relay_testonly_nop, relay);
|
||||
}
|
||||
|
||||
static int relay_send_message_and_wait(struct xe_guc_relay *relay,
|
||||
struct relay_transaction *txn,
|
||||
u32 *buf, u32 buf_size)
|
||||
@ -434,8 +442,10 @@ wait:
|
||||
reinit_completion(&txn->done);
|
||||
if (txn->reply == -EAGAIN)
|
||||
goto resend;
|
||||
if (txn->reply == -EBUSY)
|
||||
if (txn->reply == -EBUSY) {
|
||||
relay_testonly_nop(relay);
|
||||
goto wait;
|
||||
}
|
||||
if (txn->reply > 0)
|
||||
ret = from_relay_error(txn->reply);
|
||||
else
|
||||
@ -751,6 +761,7 @@ static bool relay_needs_worker(struct xe_guc_relay *relay)
|
||||
|
||||
static void relay_kick_worker(struct xe_guc_relay *relay)
|
||||
{
|
||||
KUNIT_STATIC_STUB_REDIRECT(relay_kick_worker, relay);
|
||||
queue_work(relay_to_xe(relay)->sriov.wq, &relay->worker);
|
||||
}
|
||||
|
||||
@ -849,7 +860,7 @@ int xe_guc_relay_process_guc2vf(struct xe_guc_relay *relay, const u32 *msg, u32
|
||||
relay_assert(relay, FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, msg[0]) ==
|
||||
XE_GUC_ACTION_GUC2VF_RELAY_FROM_PF);
|
||||
|
||||
if (unlikely(!IS_SRIOV_VF(relay_to_xe(relay))))
|
||||
if (unlikely(!IS_SRIOV_VF(relay_to_xe(relay)) && !kunit_get_current_test()))
|
||||
return -EPERM;
|
||||
|
||||
if (unlikely(!relay_is_ready(relay)))
|
||||
@ -895,7 +906,7 @@ int xe_guc_relay_process_guc2pf(struct xe_guc_relay *relay, const u32 *msg, u32
|
||||
relay_assert(relay, FIELD_GET(GUC_HXG_EVENT_MSG_0_ACTION, msg[0]) ==
|
||||
XE_GUC_ACTION_GUC2PF_RELAY_FROM_VF);
|
||||
|
||||
if (unlikely(!IS_SRIOV_PF(relay_to_xe(relay))))
|
||||
if (unlikely(!IS_SRIOV_PF(relay_to_xe(relay)) && !kunit_get_current_test()))
|
||||
return -EPERM;
|
||||
|
||||
if (unlikely(!relay_is_ready(relay)))
|
||||
@ -923,3 +934,7 @@ int xe_guc_relay_process_guc2pf(struct xe_guc_relay *relay, const u32 *msg, u32
|
||||
return err;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if IS_BUILTIN(CONFIG_DRM_XE_KUNIT_TEST)
|
||||
#include "tests/xe_guc_relay_test.c"
|
||||
#endif
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user