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Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/tests/devinfo.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/tests/devinfo.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/tests/devinfo.c b/drivers/net/wireless/intel/iwlwifi/tests/devinfo.c
new file mode 100644
index 000000000000..6bf2ad18b009
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/tests/devinfo.c
@@ -0,0 +1,316 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * KUnit tests for the iwlwifi device info table
+ *
+ * Copyright (C) 2023-2025 Intel Corporation
+ */
+#include <kunit/test.h>
+#include <linux/pci.h>
+#include "iwl-drv.h"
+#include "iwl-config.h"
+
+MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
+
+static void iwl_pci_print_dev_info(const char *pfx, const struct iwl_dev_info *di)
+{
+ u16 subdevice_mask = GENMASK(di->subdevice_m_h, di->subdevice_m_l);
+ char buf[100] = {};
+ int pos = 0;
+
+ if (di->match_rf_type)
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " rf_type=%03x", di->rf_type);
+ else
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " rf_type=*");
+
+ if (di->match_bw_limit)
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " bw_limit=%d", di->bw_limit);
+ else
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " bw_limit=*");
+
+ if (di->match_rf_id)
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " rf_id=0x%x", di->rf_id);
+ else
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " rf_id=*");
+
+ if (di->match_cdb)
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " cdb=%d", di->cdb);
+ else
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " cdb=*");
+
+ if (di->match_discrete)
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " discrete=%d",
+ di->discrete);
+ else
+ pos += scnprintf(buf + pos, sizeof(buf) - pos,
+ " discrete=*");
+
+ printk(KERN_DEBUG "%sdev=%04x subdev=%04x/%04x%s\n",
+ pfx, di->device, di->subdevice, subdevice_mask, buf);
+}
+
+static void devinfo_table_order(struct kunit *test)
+{
+ int idx;
+
+ for (idx = 0; idx < iwl_dev_info_table_size; idx++) {
+ const struct iwl_dev_info *di = &iwl_dev_info_table[idx];
+ const struct iwl_dev_info *ret;
+
+ ret = iwl_pci_find_dev_info(di->device, di->subdevice,
+ di->rf_type, di->cdb,
+ di->rf_id, di->bw_limit,
+ di->discrete);
+ if (!ret) {
+ iwl_pci_print_dev_info("No entry found for: ", di);
+ KUNIT_FAIL(test,
+ "No entry found for entry at index %d\n", idx);
+ } else if (ret != di) {
+ iwl_pci_print_dev_info("searched: ", di);
+ iwl_pci_print_dev_info("found: ", ret);
+ KUNIT_FAIL(test,
+ "unusable entry at index %d (found index %d instead)\n",
+ idx, (int)(ret - iwl_dev_info_table));
+ }
+ }
+}
+
+static void devinfo_discrete_match(struct kunit *test)
+{
+ /*
+ * Validate that any entries with discrete/integrated match have
+ * the same config with the value inverted (if they match at all.)
+ */
+
+ for (int idx = 0; idx < iwl_dev_info_table_size; idx++) {
+ const struct iwl_dev_info *di = &iwl_dev_info_table[idx];
+ const struct iwl_dev_info *ret;
+
+ if (!di->match_discrete)
+ continue;
+
+ ret = iwl_pci_find_dev_info(di->device, di->subdevice,
+ di->rf_type, di->cdb,
+ di->rf_id, di->bw_limit,
+ !di->discrete);
+ if (!ret)
+ continue;
+ KUNIT_EXPECT_PTR_EQ(test, di->cfg, ret->cfg);
+ /* and check the name is different, that'd be the point of it */
+ KUNIT_EXPECT_NE(test, strcmp(di->name, ret->name), 0);
+ }
+}
+
+static void devinfo_names(struct kunit *test)
+{
+ int idx;
+
+ for (idx = 0; idx < iwl_dev_info_table_size; idx++) {
+ const struct iwl_dev_info *di = &iwl_dev_info_table[idx];
+
+ KUNIT_ASSERT_TRUE(test, di->name);
+ }
+}
+
+static void devinfo_no_cfg_dups(struct kunit *test)
+{
+ for (int i = 0; i < iwl_dev_info_table_size; i++) {
+ const struct iwl_rf_cfg *cfg_i = iwl_dev_info_table[i].cfg;
+
+ for (int j = 0; j < i; j++) {
+ const struct iwl_rf_cfg *cfg_j = iwl_dev_info_table[j].cfg;
+
+ if (cfg_i == cfg_j)
+ continue;
+
+ KUNIT_EXPECT_NE_MSG(test, memcmp(cfg_i, cfg_j,
+ sizeof(*cfg_i)), 0,
+ "identical configs: %ps and %ps\n",
+ cfg_i, cfg_j);
+ }
+ }
+}
+
+static void devinfo_no_name_dups(struct kunit *test)
+{
+ for (int i = 0; i < iwl_dev_info_table_size; i++) {
+ for (int j = 0; j < i; j++) {
+ if (iwl_dev_info_table[i].name == iwl_dev_info_table[j].name)
+ continue;
+
+ KUNIT_EXPECT_NE_MSG(test,
+ strcmp(iwl_dev_info_table[i].name,
+ iwl_dev_info_table[j].name),
+ 0,
+ "name dup: %ps/%ps",
+ iwl_dev_info_table[i].name,
+ iwl_dev_info_table[j].name);
+ }
+ }
+}
+
+static void devinfo_check_subdev_match(struct kunit *test)
+{
+ for (int i = 0; i < iwl_dev_info_table_size; i++) {
+ const struct iwl_dev_info *di = &iwl_dev_info_table[i];
+ u16 subdevice_mask = GENMASK(di->subdevice_m_h,
+ di->subdevice_m_l);
+
+ /* if BW limit bit is matched then must have a limit */
+ if (di->match_bw_limit == 1 && di->bw_limit == 1)
+ KUNIT_EXPECT_NE(test, di->cfg->bw_limit, 0);
+
+ /* if subdevice is ANY we can have RF ID/BW limit */
+ if (di->subdevice == (u16)IWL_CFG_ANY)
+ continue;
+
+ /* same if the subdevice mask doesn't overlap them */
+ if (IWL_SUBDEVICE_RF_ID(subdevice_mask) == 0 &&
+ IWL_SUBDEVICE_BW_LIM(subdevice_mask) == 0)
+ continue;
+
+ /* but otherwise they shouldn't be used */
+ KUNIT_EXPECT_EQ(test, (int)di->match_rf_id, 0);
+ KUNIT_EXPECT_EQ(test, (int)di->match_bw_limit, 0);
+ }
+}
+
+static void devinfo_check_killer_subdev(struct kunit *test)
+{
+ for (int i = 0; i < iwl_dev_info_table_size; i++) {
+ const struct iwl_dev_info *di = &iwl_dev_info_table[i];
+
+ if (!strstr(di->name, "Killer"))
+ continue;
+
+ KUNIT_EXPECT_NE(test, di->subdevice, (u16)IWL_CFG_ANY);
+ }
+}
+
+static void devinfo_pci_ids(struct kunit *test)
+{
+ struct pci_dev *dev;
+
+ dev = kunit_kmalloc(test, sizeof(*dev), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, dev);
+
+ for (int i = 0; iwl_hw_card_ids[i].vendor; i++) {
+ const struct pci_device_id *s, *t;
+
+ s = &iwl_hw_card_ids[i];
+ dev->vendor = s->vendor;
+ dev->device = s->device;
+ dev->subsystem_vendor = s->subvendor;
+ dev->subsystem_device = s->subdevice;
+ dev->class = s->class;
+
+ t = pci_match_id(iwl_hw_card_ids, dev);
+ KUNIT_EXPECT_PTR_EQ(test, t, s);
+ }
+}
+
+static void devinfo_no_mac_cfg_dups(struct kunit *test)
+{
+ for (int i = 0; iwl_hw_card_ids[i].vendor; i++) {
+ const struct iwl_mac_cfg *cfg_i =
+ (void *)iwl_hw_card_ids[i].driver_data;
+
+ for (int j = 0; j < i; j++) {
+ const struct iwl_mac_cfg *cfg_j =
+ (void *)iwl_hw_card_ids[j].driver_data;
+
+ if (cfg_i == cfg_j)
+ continue;
+
+ KUNIT_EXPECT_NE_MSG(test, memcmp(cfg_j, cfg_i,
+ sizeof(*cfg_i)), 0,
+ "identical configs: %ps and %ps\n",
+ cfg_i, cfg_j);
+ }
+ }
+}
+
+static void devinfo_api_range(struct kunit *test)
+{
+ /* Check that all iwl_mac_cfg's have either both min and max set, or neither */
+ for (int i = 0; iwl_hw_card_ids[i].vendor; i++) {
+ const struct iwl_mac_cfg *mac_cfg =
+ (void *)iwl_hw_card_ids[i].driver_data;
+ const struct iwl_family_base_params *base = mac_cfg->base;
+
+ KUNIT_EXPECT_EQ_MSG(test, !!base->ucode_api_min,
+ !!base->ucode_api_max,
+ "%ps: ucode_api_min (%u) and ucode_api_min (%u) should be both set or neither.\n",
+ base, base->ucode_api_min,
+ base->ucode_api_max);
+ }
+
+ /* Check the same for the iwl_rf_cfg's */
+ for (int i = 0; i < iwl_dev_info_table_size; i++) {
+ const struct iwl_rf_cfg *rf_cfg = iwl_dev_info_table[i].cfg;
+
+ KUNIT_EXPECT_EQ_MSG(test, !!rf_cfg->ucode_api_min,
+ !!rf_cfg->ucode_api_max,
+ "%ps: ucode_api_min (%u) and ucode_api_min (%u) should be both set or neither.\n",
+ rf_cfg, rf_cfg->ucode_api_min,
+ rf_cfg->ucode_api_max);
+ }
+}
+
+static void devinfo_pci_ids_config(struct kunit *test)
+{
+ for (int i = 0; iwl_hw_card_ids[i].vendor; i++) {
+ const struct pci_device_id *s = &iwl_hw_card_ids[i];
+ const struct iwl_dev_info *di;
+
+ if (s->device == PCI_ANY_ID || s->subdevice == PCI_ANY_ID)
+ continue;
+
+#if IS_ENABLED(CONFIG_IWLMVM) || IS_ENABLED(CONFIG_IWLMLD)
+ /*
+ * The check below only works for old (pre-CNVI) devices. Most
+ * new have subdevice==ANY, so are already skipped, but for some
+ * Bz platform(s) we list all the RF PCI IDs. Skip those too.
+ */
+ if (s->driver_data == (kernel_ulong_t)&iwl_bz_mac_cfg)
+ continue;
+#endif
+
+ di = iwl_pci_find_dev_info(s->device, s->subdevice,
+ 0, 0, 0, 0, true);
+
+ KUNIT_EXPECT_PTR_NE_MSG(test, di, NULL,
+ "PCI ID %04x:%04x not found\n",
+ s->device, s->subdevice);
+ }
+}
+
+static struct kunit_case devinfo_test_cases[] = {
+ KUNIT_CASE(devinfo_table_order),
+ KUNIT_CASE(devinfo_discrete_match),
+ KUNIT_CASE(devinfo_names),
+ KUNIT_CASE(devinfo_no_cfg_dups),
+ KUNIT_CASE(devinfo_no_name_dups),
+ KUNIT_CASE(devinfo_check_subdev_match),
+ KUNIT_CASE(devinfo_check_killer_subdev),
+ KUNIT_CASE(devinfo_pci_ids),
+ KUNIT_CASE(devinfo_no_mac_cfg_dups),
+ KUNIT_CASE(devinfo_api_range),
+ KUNIT_CASE(devinfo_pci_ids_config),
+ {}
+};
+
+static struct kunit_suite iwlwifi_devinfo = {
+ .name = "iwlwifi-devinfo",
+ .test_cases = devinfo_test_cases,
+};
+
+kunit_test_suite(iwlwifi_devinfo);
generated by cgit (git 2.34.1) at 2025-12-24 22:21:33 +0000