Quelle  xe_sriov_pf_service_kunit.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0 AND MIT
/*
 * Copyright © 2024-2025 Intel Corporation
 */

#include <kunit/test.h>

#include "xe_device.h"
#include "xe_kunit_helpers.h"
#include "xe_pci_test.h"

static int pf_service_test_init(struct kunit *test)
{
 struct xe_pci_fake_data fake = {
  .sriov_mode = XE_SRIOV_MODE_PF,
  .platform = XE_TIGERLAKE, /* some random platform */
  .subplatform = XE_SUBPLATFORM_NONE,
 };
 struct xe_device *xe;

 test->priv = &fake;
 xe_kunit_helper_xe_device_test_init(test);

 xe = test->priv;
 KUNIT_ASSERT_EQ(test, xe_sriov_init(xe), 0);

 xe_sriov_pf_service_init(xe);
 /*
 * sanity check:
 * - all supported platforms VF/PF ABI versions must be defined
 * - base version can't be newer than latest
 */
 KUNIT_ASSERT_NE(test, 0, xe->sriov.pf.service.version.base.major);
 KUNIT_ASSERT_NE(test, 0, xe->sriov.pf.service.version.latest.major);
 KUNIT_ASSERT_LE(test, xe->sriov.pf.service.version.base.major,
   xe->sriov.pf.service.version.latest.major);
 if (xe->sriov.pf.service.version.base.major == xe->sriov.pf.service.version.latest.major)
  KUNIT_ASSERT_LE(test, xe->sriov.pf.service.version.base.minor,
    xe->sriov.pf.service.version.latest.minor);
 return 0;
}

static void pf_negotiate_any(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe, VF2PF_HANDSHAKE_MAJOR_ANY,
          VF2PF_HANDSHAKE_MINOR_ANY,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.latest.major);
 KUNIT_ASSERT_EQ(test, minor, xe->sriov.pf.service.version.latest.minor);
}

static void pf_negotiate_base_match(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.base.major,
          xe->sriov.pf.service.version.base.minor,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.base.major);
 KUNIT_ASSERT_EQ(test, minor, xe->sriov.pf.service.version.base.minor);
}

static void pf_negotiate_base_newer(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.base.major,
          xe->sriov.pf.service.version.base.minor + 1,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.base.major);
 KUNIT_ASSERT_GE(test, minor, xe->sriov.pf.service.version.base.minor);
 if (xe->sriov.pf.service.version.base.major == xe->sriov.pf.service.version.latest.major)
  KUNIT_ASSERT_LE(test, minor, xe->sriov.pf.service.version.latest.minor);
 else
  KUNIT_FAIL(test, "FIXME: don't know how to test multi-version yet!\n");
}

static void pf_negotiate_base_next(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.base.major + 1, 0,
          &major, &minor));
 KUNIT_ASSERT_GE(test, major, xe->sriov.pf.service.version.base.major);
 KUNIT_ASSERT_LE(test, major, xe->sriov.pf.service.version.latest.major);
 if (major == xe->sriov.pf.service.version.latest.major)
  KUNIT_ASSERT_LE(test, minor, xe->sriov.pf.service.version.latest.minor);
 else
  KUNIT_FAIL(test, "FIXME: don't know how to test multi-version yet!\n");
}

static void pf_negotiate_base_older(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 if (!xe->sriov.pf.service.version.base.minor)
  kunit_skip(test, "no older minor\n");

 KUNIT_ASSERT_NE(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.base.major,
          xe->sriov.pf.service.version.base.minor - 1,
          &major, &minor));
}

static void pf_negotiate_base_prev(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_NE(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.base.major - 1, 1,
          &major, &minor));
}

static void pf_negotiate_latest_match(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.latest.major,
          xe->sriov.pf.service.version.latest.minor,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.latest.major);
 KUNIT_ASSERT_EQ(test, minor, xe->sriov.pf.service.version.latest.minor);
}

static void pf_negotiate_latest_newer(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.latest.major,
          xe->sriov.pf.service.version.latest.minor + 1,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.latest.major);
 KUNIT_ASSERT_EQ(test, minor, xe->sriov.pf.service.version.latest.minor);
}

static void pf_negotiate_latest_next(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.latest.major + 1, 0,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.latest.major);
 KUNIT_ASSERT_EQ(test, minor, xe->sriov.pf.service.version.latest.minor);
}

static void pf_negotiate_latest_older(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 if (!xe->sriov.pf.service.version.latest.minor)
  kunit_skip(test, "no older minor\n");

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.latest.major,
          xe->sriov.pf.service.version.latest.minor - 1,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.latest.major);
 KUNIT_ASSERT_EQ(test, minor, xe->sriov.pf.service.version.latest.minor - 1);
}

static void pf_negotiate_latest_prev(struct kunit *test)
{
 struct xe_device *xe = test->priv;
 u32 major, minor;

 if (xe->sriov.pf.service.version.base.major == xe->sriov.pf.service.version.latest.major)
  kunit_skip(test, "no prev major");

 KUNIT_ASSERT_EQ(test, 0,
   pf_negotiate_version(xe,
          xe->sriov.pf.service.version.latest.major - 1,
          xe->sriov.pf.service.version.base.minor + 1,
          &major, &minor));
 KUNIT_ASSERT_EQ(test, major, xe->sriov.pf.service.version.latest.major - 1);
 KUNIT_ASSERT_GE(test, major, xe->sriov.pf.service.version.base.major);
}

static struct kunit_case pf_service_test_cases[] = {
 KUNIT_CASE(pf_negotiate_any),
 KUNIT_CASE(pf_negotiate_base_match),
 KUNIT_CASE(pf_negotiate_base_newer),
 KUNIT_CASE(pf_negotiate_base_next),
 KUNIT_CASE(pf_negotiate_base_older),
 KUNIT_CASE(pf_negotiate_base_prev),
 KUNIT_CASE(pf_negotiate_latest_match),
 KUNIT_CASE(pf_negotiate_latest_newer),
 KUNIT_CASE(pf_negotiate_latest_next),
 KUNIT_CASE(pf_negotiate_latest_older),
 KUNIT_CASE(pf_negotiate_latest_prev),
 {}
};

static struct kunit_suite pf_service_suite = {
 .name = "pf_service",
 .test_cases = pf_service_test_cases,
 .init = pf_service_test_init,
};

kunit_test_suite(pf_service_suite);