@@ -640,7 +640,8 @@ s8 iwl_mld_get_emlsr_rssi_thresh(struct iwl_mld *mld,
#define IWL_MLD_BT_COEX_ENABLE_EMLSR_RSSI_THRESH -63
#define IWL_MLD_BT_COEX_WIFI_LOSS_THRESH 7
-static bool
+VISIBLE_IF_IWLWIFI_KUNIT
+bool
iwl_mld_bt_allows_emlsr(struct iwl_mld *mld, struct ieee80211_bss_conf *link,
bool check_entry)
{
@@ -669,6 +670,7 @@ iwl_mld_bt_allows_emlsr(struct iwl_mld *mld, struct ieee80211_bss_conf *link,
link->link_id, bt_penalty);
return bt_penalty < IWL_MLD_BT_COEX_WIFI_LOSS_THRESH;
}
+EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mld_bt_allows_emlsr);
static u32
iwl_mld_emlsr_disallowed_with_link(struct iwl_mld *mld,
@@ -161,6 +161,10 @@ struct iwl_mld_link_sel_data {
u32 iwl_mld_emlsr_pair_state(struct ieee80211_vif *vif,
struct iwl_mld_link_sel_data *a,
struct iwl_mld_link_sel_data *b);
+
+bool iwl_mld_bt_allows_emlsr(struct iwl_mld *mld,
+ struct ieee80211_bss_conf *link,
+ bool entry_criteria);
#endif
#endif /* __iwl_mld_mlo_h__ */
@@ -1,5 +1,5 @@
# 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 += module.o hcmd.o utils.o link.o rx.o agg.o link-selection.o emlsr_with_bt.o
ccflags-y += -I$(src)/../
obj-$(CONFIG_IWLWIFI_KUNIT_TESTS) += iwlmld-tests.o
new file mode 100644
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * KUnit tests for link selection functions
+ *
+ * Copyright (C) 2025 Intel Corporation
+ */
+#include <kunit/static_stub.h>
+
+#include "utils.h"
+#include "mld.h"
+#include "mlo.h"
+
+static const struct emlsr_with_bt_test_case {
+ const char *desc;
+ struct {
+ struct iwl_bt_coex_profile_notif notif;
+ s32 signal;
+ bool check_entry;
+ } input;
+ bool emlsr_allowed;
+} emlsr_with_bt_cases[] = {
+ {
+ .desc = "BT penalty(exit) with low rssi 4.5: emlsr allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {4, 5},
+ .notif.wifi_loss_mid_high_rssi[1] = {7, 9},
+ .signal = -69,
+ .check_entry = false,
+ },
+ .emlsr_allowed = true,
+ },
+ {
+ .desc = "BT penalty(exit) from high rssi 5: emlsr allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {7, 9},
+ .notif.wifi_loss_mid_high_rssi[1] = {5, 5},
+ .signal = -68,
+ .check_entry = false,
+ },
+ .emlsr_allowed = true,
+ },
+ {
+ .desc = "BT penalty(exit) with low rssi 8: emlsr not allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {7, 9},
+ .notif.wifi_loss_mid_high_rssi[1] = {4, 5},
+ .signal = -69,
+ .check_entry = false,
+ },
+ .emlsr_allowed = false,
+ },
+ {
+ .desc = "BT penalty(exit) from high rssi 9: emlsr not allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {4, 5},
+ .notif.wifi_loss_mid_high_rssi[1] = {9, 9},
+ .signal = -68,
+ .check_entry = false,
+ },
+ .emlsr_allowed = false,
+ },
+ {
+ .desc = "BT penalty(entry) with low rssi 4.5: emlsr allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {4, 5},
+ .notif.wifi_loss_mid_high_rssi[1] = {7, 9},
+ .signal = -63,
+ .check_entry = true,
+ },
+ .emlsr_allowed = true,
+ },
+ {
+ .desc = "BT penalty(entry) from high rssi 5: emlsr allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {7, 9},
+ .notif.wifi_loss_mid_high_rssi[1] = {5, 5},
+ .signal = -62,
+ .check_entry = false,
+ },
+ .emlsr_allowed = true,
+ },
+ {
+ .desc = "BT penalty(entry) with low rssi 8: emlsr not allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {7, 9},
+ .notif.wifi_loss_mid_high_rssi[1] = {4, 5},
+ .signal = -63,
+ .check_entry = false,
+ },
+ .emlsr_allowed = true,
+ },
+ {
+ .desc = "BT penalty(entry) from high rssi 9: emlsr not allowed",
+ .input = {
+ .notif.wifi_loss_low_rssi[1] = {4, 5},
+ .notif.wifi_loss_mid_high_rssi[1] = {9, 9},
+ .signal = -62,
+ .check_entry = true,
+ },
+ .emlsr_allowed = false,
+ },
+};
+
+KUNIT_ARRAY_PARAM_DESC(emlsr_with_bt, emlsr_with_bt_cases, desc);
+
+static void test_emlsr_with_bt(struct kunit *test)
+{
+ struct iwl_mld *mld = test->priv;
+ const struct emlsr_with_bt_test_case *test_param =
+ (const void *)(test->param_value);
+ struct ieee80211_vif *vif =
+ iwlmld_kunit_add_vif(true, NL80211_IFTYPE_STATION);
+ struct ieee80211_bss_conf *link = iwlmld_kunit_add_link(vif, 1);
+ bool actual_value = false;
+
+ KUNIT_ALLOC_AND_ASSERT(test, link->bss);
+
+ /* Extract test case parameters */
+ link->bss->signal = DBM_TO_MBM(test_param->input.signal);
+ memcpy(&mld->last_bt_notif, &test_param->input.notif,
+ sizeof(struct iwl_bt_coex_profile_notif));
+
+ actual_value = iwl_mld_bt_allows_emlsr(mld, link,
+ test_param->input.check_entry);
+ /* Assert that the returned value matches the expected emlsr_allowed */
+ KUNIT_EXPECT_EQ(test, actual_value, test_param->emlsr_allowed);
+}
+
+static struct kunit_case emlsr_with_bt_test_cases[] = {
+ KUNIT_CASE_PARAM(test_emlsr_with_bt, emlsr_with_bt_gen_params),
+ {},
+};
+
+static struct kunit_suite emlsr_with_bt = {
+ .name = "iwlmld-emlsr-with-bt-tests",
+ .test_cases = emlsr_with_bt_test_cases,
+ .init = iwlmld_kunit_test_init,
+};
+
+kunit_test_suite(emlsr_with_bt);