drivers/net/wireless/intel/iwlwifi/tests/devinfo.c

   1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
   2 /*
   3  * KUnit tests for the iwlwifi device info table
   4  *
   5  * Copyright (C) 2023-2024 Intel Corporation
   6  */
   7 #include <kunit/test.h>
   8 #include <linux/pci.h>
   9 #include "iwl-drv.h"
  10 #include "iwl-config.h"
  11
  12 MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
  13
  14 static void iwl_pci_print_dev_info(const char *pfx, const struct iwl_dev_info *di)
  15 {
  16         printk(KERN_DEBUG "%sdev=%.4x,subdev=%.4x,mac_type=%.4x,mac_step=%.4x,rf_type=%.4x,cdb=%d,jacket=%d,rf_id=%.2x,no_160=%d,cores=%.2x\n",
  17                pfx, di->device, di->subdevice, di->mac_type, di->mac_step,
  18                di->rf_type, di->cdb, di->jacket, di->rf_id, di->no_160,
  19                di->cores);
  20 }
  21
  22 static void devinfo_table_order(struct kunit *test)
  23 {
  24         int idx;
  25
  26         for (idx = 0; idx < iwl_dev_info_table_size; idx++) {
  27                 const struct iwl_dev_info *di = &iwl_dev_info_table[idx];
  28                 const struct iwl_dev_info *ret;
  29
  30                 ret = iwl_pci_find_dev_info(di->device, di->subdevice,
  31                                             di->mac_type, di->mac_step,
  32                                             di->rf_type, di->cdb,
  33                                             di->jacket, di->rf_id,
  34                                             di->no_160, di->cores, di->rf_step);
  35                 if (ret != di) {
  36                         iwl_pci_print_dev_info("searched: ", di);
  37                         iwl_pci_print_dev_info("found:    ", ret);
  38                         KUNIT_FAIL(test,
  39                                    "unusable entry at index %d (found index %d instead)\n",
  40                                    idx, (int)(ret - iwl_dev_info_table));
  41                 }
  42         }
  43 }
  44
  45 static void devinfo_pci_ids(struct kunit *test)
  46 {
  47         struct pci_dev *dev;
  48
  49         dev = kunit_kmalloc(test, sizeof(*dev), GFP_KERNEL);
  50         KUNIT_ASSERT_NOT_NULL(test, dev);
  51
  52         for (int i = 0; iwl_hw_card_ids[i].vendor; i++) {
  53                 const struct pci_device_id *s, *t;
  54
  55                 s = &iwl_hw_card_ids[i];
  56                 dev->vendor = s->vendor;
  57                 dev->device = s->device;
  58                 dev->subsystem_vendor = s->subvendor;
  59                 dev->subsystem_device = s->subdevice;
  60                 dev->class = s->class;
  61
  62                 t = pci_match_id(iwl_hw_card_ids, dev);
  63                 KUNIT_EXPECT_PTR_EQ(test, t, s);
  64         }
  65 }
  66
  67 static struct kunit_case devinfo_test_cases[] = {
  68         KUNIT_CASE(devinfo_table_order),
  69         KUNIT_CASE(devinfo_pci_ids),
  70         {}
  71 };
  72
  73 static struct kunit_suite iwlwifi_devinfo = {
  74         .name = "iwlwifi-devinfo",
  75         .test_cases = devinfo_test_cases,
  76 };
  77
  78 kunit_test_suite(iwlwifi_devinfo);