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wifi: iwlwifi: mld: Add KUnit tests for channel-load thresholds

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Add a KUnit test suite for iwl_mld_chan_load_requires_scan,
covering level-up, level-down, and no-change transitions.
The test directly sets channel-load values, validating
scan-trigger decisions and updated load levels

Signed-off-by: Avinash Bhatt <avinash.bhatt@intel.com>
Link: https://patch.msgid.link/20260512222731.4dd3ccaffc46.I9c1f210e5ef25248097a226f4b3a2af5fbcf3c87@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
This commit is contained in:
Avinash Bhatt 2026-05-12 22:34:41 +03:00 committed by Miri Korenblit
parent 59a26553f1
commit ace3199321
3 changed files with 141 additions and 0 deletions
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1
drivers/net/wireless/intel/iwlwifi/mld/link.c
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@ -852,6 +852,7 @@ bool iwl_mld_chan_load_requires_scan(struct iwl_mld *mld,
return scan_trig;
}
EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mld_chan_load_requires_scan);
static unsigned int
iwl_mld_get_default_chan_load(struct ieee80211_bss_conf *link_conf)

1
drivers/net/wireless/intel/iwlwifi/mld/tests/Makefile
View File

@ -1,5 +1,6 @@
# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
iwlmld-tests-y += module.o hcmd.o utils.o link.o rx.o agg.o link-selection.o
iwlmld-tests-y += chan_load_thresh.o
ccflags-y += -I$(src)/../
obj-$(CONFIG_IWLWIFI_KUNIT_TESTS) += iwlmld-tests.o

139
drivers/net/wireless/intel/iwlwifi/mld/tests/chan_load_thresh.c Normal file
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@ -0,0 +1,139 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* KUnit tests for channel helper functions
*
* Copyright (C) 2026 Intel Corporation
*/
#include <kunit/static_stub.h>
#include "mld.h"
#include "link.h"
#include "iface.h"
#include "utils.h"
MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
struct test_chan_load_case {
const char *desc;
u32 load;
enum iwl_mld_link_chan_load_level old_lvl;
enum iwl_mld_link_chan_load_level expected_lvl;
bool expected_scan_trig;
};
static const struct test_chan_load_case test_chan_load_thresh_cases[] = {
/* Level-up transitions */
{
.desc = "Transition NONE->NONE",
.load = 20,
.old_lvl = LINK_CHAN_LOAD_LVL_NONE,
.expected_lvl = LINK_CHAN_LOAD_LVL_NONE,
.expected_scan_trig = false,
},
{
.desc = "Transition NONE->LVL1",
.load = 50,
.old_lvl = LINK_CHAN_LOAD_LVL_NONE,
.expected_lvl = LINK_CHAN_LOAD_LVL1,
.expected_scan_trig = true,
},
{
.desc = "Transition LVL1->LVL2",
.load = 75,
.old_lvl = LINK_CHAN_LOAD_LVL1,
.expected_lvl = LINK_CHAN_LOAD_LVL2,
.expected_scan_trig = true,
},
{
.desc = "Transition LVL2->LVL3",
.load = 90,
.old_lvl = LINK_CHAN_LOAD_LVL2,
.expected_lvl = LINK_CHAN_LOAD_LVL3,
.expected_scan_trig = true,
},
/* Level-down transitions */
{
.desc = "Transition LVL1->NONE",
.load = 30,
.old_lvl = LINK_CHAN_LOAD_LVL1,
.expected_lvl = LINK_CHAN_LOAD_LVL_NONE,
.expected_scan_trig = false,
},
{
.desc = "Transition LVL2->LVL1",
.load = 60,
.old_lvl = LINK_CHAN_LOAD_LVL2,
.expected_lvl = LINK_CHAN_LOAD_LVL1,
.expected_scan_trig = false,
},
{
.desc = "Transition LVL3->LVL2",
.load = 70,
.old_lvl = LINK_CHAN_LOAD_LVL3,
.expected_lvl = LINK_CHAN_LOAD_LVL2,
.expected_scan_trig = false,
},
/* No change */
{
.desc = "Transition LVL2->LVL2",
.load = 72,
.old_lvl = LINK_CHAN_LOAD_LVL2,
.expected_lvl = LINK_CHAN_LOAD_LVL2,
.expected_scan_trig = false,
},
};
KUNIT_ARRAY_PARAM_DESC(test_chan_load_thresh_cases,
test_chan_load_thresh_cases, desc);
static void test_chan_load_thresholds(struct kunit *test)
{
const struct test_chan_load_case *tc = test->param_value;
struct iwl_mld *mld = test->priv;
struct ieee80211_vif *vif;
struct iwl_mld_vif *mld_vif;
struct ieee80211_bss_conf *link_conf;
struct iwl_mld_link *mld_link;
struct iwl_mld_kunit_link assoc_link = {
.id = 0,
.chandef = &chandef_6ghz_160mhz,
};
bool scan_trig;
u32 chan_load;
/* Setup associated non-MLO station */
vif = iwlmld_kunit_setup_non_mlo_assoc(&assoc_link);
mld_vif = iwl_mld_vif_from_mac80211(vif);
link_conf = &vif->bss_conf;
mld_link = &mld_vif->deflink;
chan_load = tc->load;
mld_link->chan_load_lvl = tc->old_lvl;
/* Execute function under test */
wiphy_lock(mld->wiphy);
scan_trig = iwl_mld_chan_load_requires_scan(mld, link_conf, chan_load);
wiphy_unlock(mld->wiphy);
/* Check return value */
KUNIT_EXPECT_EQ(test, tc->expected_scan_trig, scan_trig);
/* Check updated channel-load level */
KUNIT_EXPECT_EQ(test, tc->expected_lvl, mld_link->chan_load_lvl);
}
static struct kunit_case chan_load_thresh_test_cases[] = {
KUNIT_CASE_PARAM(test_chan_load_thresholds,
test_chan_load_thresh_cases_gen_params),
{}
};
static struct kunit_suite chan_load_thresh_test_suite = {
.name = "iwl_mld_chan_load_threshold_tests",
.init = iwlmld_kunit_test_init,
.test_cases = chan_load_thresh_test_cases,
};
kunit_test_suite(chan_load_thresh_test_suite);