diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c')
-rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c | 435 |
1 files changed, 435 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c b/drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c new file mode 100644 index 000000000000..f49e3c98b1ba --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c @@ -0,0 +1,435 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * KUnit tests for channel helper functions + * + * Copyright (C) 2024 Intel Corporation + */ +#include <net/mac80211.h> +#include "../mvm.h" +#include <kunit/test.h> + +MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING); + +static struct wiphy wiphy = { + .mtx = __MUTEX_INITIALIZER(wiphy.mtx), +}; + +static struct ieee80211_hw hw = { + .wiphy = &wiphy, +}; + +static struct ieee80211_channel chan_5ghz = { + .band = NL80211_BAND_5GHZ, +}; + +static struct ieee80211_channel chan_6ghz = { + .band = NL80211_BAND_6GHZ, +}; + +static struct ieee80211_channel chan_2ghz = { + .band = NL80211_BAND_2GHZ, +}; + +static struct cfg80211_chan_def chandef_a = {}; + +static struct cfg80211_chan_def chandef_b = {}; + +static struct iwl_mvm_phy_ctxt ctx = {}; + +static struct iwl_mvm_vif_link_info mvm_link = { + .phy_ctxt = &ctx, + .active = true +}; + +static struct cfg80211_bss bss = {}; + +static struct ieee80211_bss_conf link_conf = {.bss = &bss}; + +static const struct iwl_fw_cmd_version entry = { + .group = LEGACY_GROUP, + .cmd = BT_PROFILE_NOTIFICATION, + .notif_ver = 4 +}; + +static struct iwl_fw fw = { + .ucode_capa = { + .n_cmd_versions = 1, + .cmd_versions = &entry, + }, +}; + +static struct iwl_mvm mvm = { + .hw = &hw, + .fw = &fw, +}; + +static const struct link_grading_case { + const char *desc; + const struct cfg80211_chan_def chandef; + s32 signal; + s16 channel_util; + int chan_load_by_us; + unsigned int grade; +} link_grading_cases[] = { + { + .desc = "UHB, RSSI below range, no factors", + .chandef = { + .chan = &chan_6ghz, + .width = NL80211_CHAN_WIDTH_20, + }, + .signal = -100, + .grade = 177, + }, + { + .desc = "LB, RSSI in range, no factors", + .chandef = { + .chan = &chan_2ghz, + .width = NL80211_CHAN_WIDTH_20, + }, + .signal = -84, + .grade = 344, + }, + { + .desc = "HB, RSSI above range, no factors", + .chandef = { + .chan = &chan_5ghz, + .width = NL80211_CHAN_WIDTH_20, + }, + .signal = -50, + .grade = 3442, + }, + { + .desc = "HB, BSS Load IE (20 percent), inactive link, no puncturing factor", + .chandef = { + .chan = &chan_5ghz, + .width = NL80211_CHAN_WIDTH_20, + }, + .signal = -66, + .channel_util = 51, + .grade = 1836, + }, + { + .desc = "LB, BSS Load IE (20 percent), active link, chan_load_by_us=10 percent. No puncturing factor", + .chandef = { + .chan = &chan_2ghz, + .width = NL80211_CHAN_WIDTH_20, + }, + .signal = -61, + .channel_util = 51, + .chan_load_by_us = 10, + .grade = 2061, + }, + { + .desc = "UHB, BSS Load IE (40 percent), active link, chan_load_by_us=50 (invalid) percent. No puncturing factor", + .chandef = { + .chan = &chan_6ghz, + .width = NL80211_CHAN_WIDTH_20, + }, + .signal = -66, + .channel_util = 102, + .chan_load_by_us = 50, + .grade = 1552, + }, + { .desc = "HB, 80 MHz, no channel load factor, punctured percentage 0", + .chandef = { + .chan = &chan_5ghz, + .width = NL80211_CHAN_WIDTH_80, + .punctured = 0x0000 + }, + .signal = -72, + .grade = 1750, + }, + { .desc = "HB, 160 MHz, no channel load factor, punctured percentage 25", + .chandef = { + .chan = &chan_5ghz, + .width = NL80211_CHAN_WIDTH_160, + .punctured = 0x3 + }, + .signal = -72, + .grade = 1312, + }, + { .desc = "UHB, 320 MHz, no channel load factor, punctured percentage 12.5 (2/16)", + .chandef = { + .chan = &chan_6ghz, + .width = NL80211_CHAN_WIDTH_320, + .punctured = 0x3 + }, + .signal = -72, + .grade = 1806, + }, + { .desc = "HB, 160 MHz, channel load 20, channel load by us 10, punctured percentage 25", + .chandef = { + .chan = &chan_5ghz, + .width = NL80211_CHAN_WIDTH_160, + .punctured = 0x3 + }, + .channel_util = 51, + .chan_load_by_us = 10, + .signal = -72, + .grade = 1179, + }, +}; + +KUNIT_ARRAY_PARAM_DESC(link_grading, link_grading_cases, desc) + +static void setup_link_conf(struct kunit *test) +{ + const struct link_grading_case *params = test->param_value; + size_t vif_size = sizeof(struct ieee80211_vif) + + sizeof(struct iwl_mvm_vif); + struct ieee80211_vif *vif = kunit_kzalloc(test, vif_size, GFP_KERNEL); + struct ieee80211_bss_load_elem *bss_load; + struct element *element; + size_t ies_size = sizeof(struct cfg80211_bss_ies) + sizeof(*bss_load) + sizeof(element); + struct cfg80211_bss_ies *ies; + struct iwl_mvm_vif *mvmvif; + + KUNIT_ASSERT_NOT_NULL(test, vif); + + mvmvif = iwl_mvm_vif_from_mac80211(vif); + if (params->chan_load_by_us > 0) { + ctx.channel_load_by_us = params->chan_load_by_us; + mvmvif->link[0] = &mvm_link; + } + + link_conf.vif = vif; + link_conf.chanreq.oper = params->chandef; + bss.signal = DBM_TO_MBM(params->signal); + + ies = kunit_kzalloc(test, ies_size, GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, ies); + ies->len = sizeof(*bss_load) + sizeof(struct element); + + element = (void *)ies->data; + element->datalen = sizeof(*bss_load); + element->id = 11; + + bss_load = (void *)element->data; + bss_load->channel_util = params->channel_util; + + rcu_assign_pointer(bss.ies, ies); +} + +static void test_link_grading(struct kunit *test) +{ + const struct link_grading_case *params = test->param_value; + unsigned int ret; + + setup_link_conf(test); + + rcu_read_lock(); + ret = iwl_mvm_get_link_grade(&link_conf); + rcu_read_unlock(); + + KUNIT_EXPECT_EQ(test, ret, params->grade); + + kunit_kfree(test, link_conf.vif); + RCU_INIT_POINTER(bss.ies, NULL); +} + +static struct kunit_case link_grading_test_cases[] = { + KUNIT_CASE_PARAM(test_link_grading, link_grading_gen_params), + {} +}; + +static struct kunit_suite link_grading = { + .name = "iwlmvm-link-grading", + .test_cases = link_grading_test_cases, +}; + +kunit_test_suite(link_grading); + +static const struct valid_link_pair_case { + const char *desc; + bool bt; + struct ieee80211_channel *chan_a; + struct ieee80211_channel *chan_b; + enum nl80211_chan_width cw_a; + enum nl80211_chan_width cw_b; + s32 sig_a; + s32 sig_b; + bool csa_a; + bool valid; +} valid_link_pair_cases[] = { + { + .desc = "HB + UHB, valid.", + .chan_a = &chan_6ghz, + .chan_b = &chan_5ghz, + .valid = true, + }, + { + .desc = "LB + HB, no BT.", + .chan_a = &chan_2ghz, + .chan_b = &chan_5ghz, + .valid = false, + }, + { + .desc = "LB + HB, with BT.", + .bt = true, + .chan_a = &chan_2ghz, + .chan_b = &chan_5ghz, + .valid = false, + }, + { + .desc = "Same band", + .chan_a = &chan_2ghz, + .chan_b = &chan_2ghz, + .valid = false, + }, + { + .desc = "RSSI: LB, 20 MHz, low", + .chan_a = &chan_2ghz, + .cw_a = NL80211_CHAN_WIDTH_20, + .sig_a = -68, + .chan_b = &chan_5ghz, + .valid = false, + }, + { + .desc = "RSSI: UHB, 20 MHz, high", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_20, + .sig_a = -66, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_20, + .valid = true, + }, + { + .desc = "RSSI: UHB, 40 MHz, low", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_40, + .sig_a = -65, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_40, + .valid = false, + }, + { + .desc = "RSSI: UHB, 40 MHz, high", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_40, + .sig_a = -63, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_40, + .valid = true, + }, + { + .desc = "RSSI: UHB, 80 MHz, low", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_80, + .sig_a = -62, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_80, + .valid = false, + }, + { + .desc = "RSSI: UHB, 80 MHz, high", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_80, + .sig_a = -60, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_80, + .valid = true, + }, + { + .desc = "RSSI: UHB, 160 MHz, low", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_160, + .sig_a = -59, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_160, + .valid = false, + }, + { + .desc = "RSSI: HB, 160 MHz, high", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_160, + .sig_a = -5, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_160, + .valid = true, + }, + { + .desc = "CSA active", + .chan_a = &chan_6ghz, + .cw_a = NL80211_CHAN_WIDTH_160, + .sig_a = -5, + .chan_b = &chan_5ghz, + .cw_b = NL80211_CHAN_WIDTH_160, + .valid = false, + /* same as previous entry with valid=true except for CSA */ + .csa_a = true, + }, +}; + +KUNIT_ARRAY_PARAM_DESC(valid_link_pair, valid_link_pair_cases, desc) + +static void test_valid_link_pair(struct kunit *test) +{ + const struct valid_link_pair_case *params = test->param_value; + size_t vif_size = sizeof(struct ieee80211_vif) + + sizeof(struct iwl_mvm_vif); + struct ieee80211_vif *vif = kunit_kzalloc(test, vif_size, GFP_KERNEL); + struct iwl_trans *trans = kunit_kzalloc(test, sizeof(struct iwl_trans), + GFP_KERNEL); + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm_link_sel_data link_a = { + .chandef = &chandef_a, + .link_id = 1, + .signal = params->sig_a, + }; + struct iwl_mvm_link_sel_data link_b = { + .chandef = &chandef_b, + .link_id = 5, + .signal = params->sig_b, + }; + struct ieee80211_bss_conf *conf; + bool result; + + KUNIT_ASSERT_NOT_NULL(test, vif); + KUNIT_ASSERT_NOT_NULL(test, trans); + + chandef_a.chan = params->chan_a; + chandef_b.chan = params->chan_b; + + chandef_a.width = params->cw_a ?: NL80211_CHAN_WIDTH_20; + chandef_b.width = params->cw_b ?: NL80211_CHAN_WIDTH_20; + +#ifdef CONFIG_IWLWIFI_SUPPORT_DEBUG_OVERRIDES + trans->dbg_cfg = default_dbg_config; +#endif + mvm.trans = trans; + + mvm.last_bt_notif.wifi_loss_low_rssi = params->bt; + mvmvif->mvm = &mvm; + + conf = kunit_kzalloc(test, sizeof(*vif->link_conf[0]), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, conf); + conf->chanreq.oper = chandef_a; + conf->csa_active = params->csa_a; + vif->link_conf[link_a.link_id] = (void __rcu *)conf; + + conf = kunit_kzalloc(test, sizeof(*vif->link_conf[0]), GFP_KERNEL); + KUNIT_ASSERT_NOT_NULL(test, conf); + conf->chanreq.oper = chandef_b; + vif->link_conf[link_b.link_id] = (void __rcu *)conf; + + wiphy_lock(&wiphy); + result = iwl_mvm_mld_valid_link_pair(vif, &link_a, &link_b); + wiphy_unlock(&wiphy); + + KUNIT_EXPECT_EQ(test, result, params->valid); + + kunit_kfree(test, vif); + kunit_kfree(test, trans); +} + +static struct kunit_case valid_link_pair_test_cases[] = { + KUNIT_CASE_PARAM(test_valid_link_pair, valid_link_pair_gen_params), + {}, +}; + +static struct kunit_suite valid_link_pair = { + .name = "iwlmvm-valid-link-pair", + .test_cases = valid_link_pair_test_cases, +}; + +kunit_test_suite(valid_link_pair); |