From b7793a1a2f370c28b17d9554b58e9dc51afcfcbd Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 18 Mar 2024 18:53:17 +0200 Subject: wifi: ieee80211: check for NULL in ieee80211_mle_size_ok() For simplicity, we may want to pass a NULL element, and while we should then pass also a zero length, just be a bit more careful here. Signed-off-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://msgid.link/20240318184907.4d983653cb8d.Ic3ea99b60c61ac2f7d38cb9fd202a03c97a05601@changeid Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/ieee80211.h') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 3385a2cc5b09..a99f048404b8 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -5166,7 +5166,7 @@ static inline bool ieee80211_mle_size_ok(const u8 *data, size_t len) bool check_common_len = false; u16 control; - if (len < fixed) + if (!data || len < fixed) return false; control = le16_to_cpu(mle->control); -- cgit v1.2.3-59-g8ed1b From c121514df0daa800cc500dc2738e0b8a1c54af98 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 18 Mar 2024 18:53:18 +0200 Subject: wifi: ieee80211: fix ieee80211_mle_basic_sta_prof_size_ok() If there was a possibility of an MLE basic STA profile without subelements, we might reject it because we account for the one octet for sta_info_len twice (it's part of itself, and in the fixed portion). Like in ieee80211_mle_reconf_sta_prof_size_ok, subtract 1 to adjust that. When reading the elements we did take this into account, and since there are always elements, this never really mattered. Fixes: 7b6f08771bf6 ("wifi: ieee80211: Support validating ML station profile length") Signed-off-by: Johannes Berg Reviewed-by: Ilan Peer Signed-off-by: Miri Korenblit Link: https://msgid.link/20240318184907.00bb0b20ed60.I8c41dd6fc14c4b187ab901dea15ade73c79fb98c@changeid Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux/ieee80211.h') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index a99f048404b8..4fd9735bb75e 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -5302,7 +5302,7 @@ static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data, info_len += 1; return prof->sta_info_len >= info_len && - fixed + prof->sta_info_len <= len; + fixed + prof->sta_info_len - 1 <= len; } /** -- cgit v1.2.3-59-g8ed1b From 56cc479188f70bbb6eacbe5ed1e43d96c91ccc6a Mon Sep 17 00:00:00 2001 From: Anjaneyulu Date: Mon, 18 Mar 2024 18:53:23 +0200 Subject: wifi: mac80211: handle indoor AFC/LPI AP on assoc success Update power_type in bss_conf based on Indoor AFC and LPI power types received in HE 6 GHz operation element on assoc success. Signed-off-by: Anjaneyulu Signed-off-by: Miri Korenblit Link: https://msgid.link/20240318184907.89c25dae34ff.Ifd8b2983f400623ac03dc032fc9a20025c9ca365@changeid Signed-off-by: Johannes Berg --- include/linux/ieee80211.h | 8 +++++--- net/mac80211/mlme.c | 2 ++ 2 files changed, 7 insertions(+), 3 deletions(-) (limited to 'include/linux/ieee80211.h') diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 4fd9735bb75e..7f9b829dcb1e 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -2742,9 +2742,11 @@ static inline bool ieee80211_he_capa_size_ok(const u8 *data, u8 len) #define IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR 0x40000000 #define IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED 0x80000000 -#define IEEE80211_6GHZ_CTRL_REG_LPI_AP 0 -#define IEEE80211_6GHZ_CTRL_REG_SP_AP 1 -#define IEEE80211_6GHZ_CTRL_REG_VLP_AP 2 +#define IEEE80211_6GHZ_CTRL_REG_LPI_AP 0 +#define IEEE80211_6GHZ_CTRL_REG_SP_AP 1 +#define IEEE80211_6GHZ_CTRL_REG_VLP_AP 2 +#define IEEE80211_6GHZ_CTRL_REG_INDOOR_LPI_AP 3 +#define IEEE80211_6GHZ_CTRL_REG_INDOOR_SP_AP 4 /** * struct ieee80211_he_6ghz_oper - HE 6 GHz operation Information field diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 47a2cba8313f..8cd3253c6188 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -4429,9 +4429,11 @@ static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, switch (u8_get_bits(he_6ghz_oper->control, IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) { case IEEE80211_6GHZ_CTRL_REG_LPI_AP: + case IEEE80211_6GHZ_CTRL_REG_INDOOR_LPI_AP: bss_conf->power_type = IEEE80211_REG_LPI_AP; break; case IEEE80211_6GHZ_CTRL_REG_SP_AP: + case IEEE80211_6GHZ_CTRL_REG_INDOOR_SP_AP: bss_conf->power_type = IEEE80211_REG_SP_AP; break; case IEEE80211_6GHZ_CTRL_REG_VLP_AP: -- cgit v1.2.3-59-g8ed1b From 2887af4d22f90bcddd3ff9a6eb93ecdaab3acd94 Mon Sep 17 00:00:00 2001 From: Miri Korenblit Date: Tue, 16 Apr 2024 13:53:58 +0300 Subject: wifi: iwlwifi: mvm: implement link grading For selecting what link(s) out of the usable ones to activate, calculate a grade for a given link. Calculation of a link grade is done as follows: 1. get the estimated throughput according to the RSSI of the link, this will be the base grade 2. get the channel load from the BSS Load Element, subtracting the load caused by us. Apply the factor on the grade. 3. puncturing factor: calculate the percentage of the punctured subchannels (out of the total subchannels). Apply this on the grade. The link grading will be used by the link selection mechanism in a later patch. Also add KUnit tests for it. Signed-off-by: Miri Korenblit Reviewed-by: Johannes Berg Link: https://msgid.link/20240416134215.a6799dbd5643.If137ca6dc443606c7d8c99ec1fc38b325003a7c1@changeid Signed-off-by: Johannes Berg --- drivers/net/wireless/intel/iwlwifi/mvm/Makefile | 3 +- drivers/net/wireless/intel/iwlwifi/mvm/link.c | 172 +++++++++++++++++ drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 1 + .../net/wireless/intel/iwlwifi/mvm/tests/Makefile | 3 + .../net/wireless/intel/iwlwifi/mvm/tests/links.c | 210 +++++++++++++++++++++ .../net/wireless/intel/iwlwifi/mvm/tests/module.c | 10 + include/linux/ieee80211.h | 18 ++ 7 files changed, 416 insertions(+), 1 deletion(-) create mode 100644 drivers/net/wireless/intel/iwlwifi/mvm/tests/Makefile create mode 100644 drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c create mode 100644 drivers/net/wireless/intel/iwlwifi/mvm/tests/module.c (limited to 'include/linux/ieee80211.h') diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/Makefile b/drivers/net/wireless/intel/iwlwifi/mvm/Makefile index 593fe28d89cf..5c754b87ea20 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/Makefile +++ b/drivers/net/wireless/intel/iwlwifi/mvm/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_IWLMVM) += iwlmvm.o +obj-$(CONFIG_IWLWIFI_KUNIT_TESTS) += tests/ iwlmvm-y += fw.o mac80211.o nvm.o ops.o phy-ctxt.o mac-ctxt.o iwlmvm-y += utils.o rx.o rxmq.o tx.o binding.o quota.o sta.o sf.o iwlmvm-y += scan.o time-event.o rs.o rs-fw.o @@ -15,4 +16,4 @@ iwlmvm-$(CONFIG_IWLWIFI_LEDS) += led.o iwlmvm-$(CONFIG_PM) += d3.o iwlmvm-$(CONFIG_IWLMEI) += vendor-cmd.o -ccflags-y += -I $(srctree)/$(src)/../ +subdir-ccflags-y += -I $(srctree)/$(src)/../ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/link.c b/drivers/net/wireless/intel/iwlwifi/mvm/link.c index 9f69e04594e4..23660238348b 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/link.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/link.c @@ -329,3 +329,175 @@ int iwl_mvm_disable_link(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return ret; } + +struct iwl_mvm_rssi_to_grade { + s8 rssi[2]; + u16 grade; +}; + +#define RSSI_TO_GRADE_LINE(_lb, _hb_uhb, _grade) \ + { \ + .rssi = {_lb, _hb_uhb}, \ + .grade = _grade \ + } + +/* + * This array must be sorted by increasing RSSI for proper functionality. + * The grades are actually estimated throughput, represented as fixed-point + * with a scale factor of 1/10. + */ +static const struct iwl_mvm_rssi_to_grade rssi_to_grade_map[] = { + RSSI_TO_GRADE_LINE(-85, -89, 177), + RSSI_TO_GRADE_LINE(-83, -86, 344), + RSSI_TO_GRADE_LINE(-82, -85, 516), + RSSI_TO_GRADE_LINE(-80, -83, 688), + RSSI_TO_GRADE_LINE(-77, -79, 1032), + RSSI_TO_GRADE_LINE(-73, -76, 1376), + RSSI_TO_GRADE_LINE(-70, -74, 1548), + RSSI_TO_GRADE_LINE(-69, -72, 1750), + RSSI_TO_GRADE_LINE(-65, -68, 2064), + RSSI_TO_GRADE_LINE(-61, -66, 2294), + RSSI_TO_GRADE_LINE(-58, -61, 2580), + RSSI_TO_GRADE_LINE(-55, -58, 2868), + RSSI_TO_GRADE_LINE(-46, -55, 3098), + RSSI_TO_GRADE_LINE(-43, -54, 3442) +}; + +#define MAX_GRADE (rssi_to_grade_map[ARRAY_SIZE(rssi_to_grade_map) - 1].grade) + +#define DEFAULT_CHAN_LOAD_LB 30 +#define DEFAULT_CHAN_LOAD_HB 15 +#define DEFAULT_CHAN_LOAD_UHB 0 + +/* Factors calculation is done with fixed-point with a scaling factor of 1/256 */ +#define SCALE_FACTOR 256 + +/* Convert a percentage from [0,100] to [0,255] */ +#define NORMALIZE_PERCENT_TO_255(percentage) ((percentage) * SCALE_FACTOR / 100) + +static unsigned int +iwl_mvm_get_puncturing_factor(const struct ieee80211_bss_conf *link_conf) +{ + enum nl80211_chan_width chan_width = + link_conf->chanreq.oper.width; + int mhz = nl80211_chan_width_to_mhz(chan_width); + unsigned int n_subchannels, n_punctured, puncturing_penalty; + + if (WARN_ONCE(mhz < 20 || mhz > 320, + "Invalid channel width : (%d)\n", mhz)) + return SCALE_FACTOR; + + /* No puncturing, no penalty */ + if (mhz < 80) + return SCALE_FACTOR; + + /* total number of subchannels */ + n_subchannels = mhz / 20; + /* how many of these are punctured */ + n_punctured = hweight16(link_conf->chanreq.oper.punctured); + + puncturing_penalty = n_punctured * SCALE_FACTOR / n_subchannels; + return SCALE_FACTOR - puncturing_penalty; +} + +static unsigned int +iwl_mvm_get_chan_load_factor(struct ieee80211_bss_conf *link_conf) +{ + struct iwl_mvm_vif_link_info *mvm_link = + iwl_mvm_vif_from_mac80211(link_conf->vif)->link[link_conf->link_id]; + const struct element *bss_load_elem = + ieee80211_bss_get_elem(link_conf->bss, WLAN_EID_QBSS_LOAD); + const struct ieee80211_bss_load_elem *bss_load; + enum nl80211_band band = link_conf->chanreq.oper.chan->band; + unsigned int chan_load; + u32 chan_load_by_us; + + /* If there isn't BSS Load element, take the defaults */ + if (!bss_load_elem || + bss_load_elem->datalen != sizeof(*bss_load)) { + switch (band) { + case NL80211_BAND_2GHZ: + chan_load = DEFAULT_CHAN_LOAD_LB; + break; + case NL80211_BAND_5GHZ: + chan_load = DEFAULT_CHAN_LOAD_HB; + break; + case NL80211_BAND_6GHZ: + chan_load = DEFAULT_CHAN_LOAD_UHB; + break; + default: + chan_load = 0; + break; + } + /* The defaults are given in percentage */ + return SCALE_FACTOR - NORMALIZE_PERCENT_TO_255(chan_load); + } + + bss_load = (const void *)bss_load_elem->data; + /* Channel util is in range 0-255 */ + chan_load = bss_load->channel_util; + + if (!mvm_link || !mvm_link->active) + goto done; + + if (WARN_ONCE(!mvm_link->phy_ctxt, + "Active link (%u) without phy ctxt assigned!\n", + link_conf->link_id)) + goto done; + + /* channel load by us is given in percentage */ + chan_load_by_us = + NORMALIZE_PERCENT_TO_255(mvm_link->phy_ctxt->channel_load_by_us); + + /* Use only values that firmware sends that can possibly be valid */ + if (chan_load_by_us <= chan_load) + chan_load -= chan_load_by_us; +done: + return SCALE_FACTOR - chan_load; +} + +/* This function calculates the grade of a link. Returns 0 in error case */ +unsigned int iwl_mvm_get_link_grade(struct ieee80211_bss_conf *link_conf) +{ + enum nl80211_band band; + int i, rssi_idx; + s32 link_rssi; + unsigned int grade = MAX_GRADE; + + if (WARN_ON_ONCE(!link_conf)) + return 0; + + band = link_conf->chanreq.oper.chan->band; + if (WARN_ONCE(band != NL80211_BAND_2GHZ && + band != NL80211_BAND_5GHZ && + band != NL80211_BAND_6GHZ, + "Invalid band (%u)\n", band)) + return 0; + + link_rssi = MBM_TO_DBM(link_conf->bss->signal); + /* + * For 6 GHz the RSSI of the beacons is lower than + * the RSSI of the data. + */ + if (band == NL80211_BAND_6GHZ) + link_rssi += 4; + + rssi_idx = band == NL80211_BAND_2GHZ ? 0 : 1; + + /* Get grade based on RSSI */ + for (i = 0; i < ARRAY_SIZE(rssi_to_grade_map); i++) { + const struct iwl_mvm_rssi_to_grade *line = + &rssi_to_grade_map[i]; + + if (link_rssi > line->rssi[rssi_idx]) + continue; + grade = line->grade; + break; + } + + /* apply the channel load and puncturing factors */ + grade = grade * iwl_mvm_get_chan_load_factor(link_conf) / SCALE_FACTOR; + grade = grade * iwl_mvm_get_puncturing_factor(link_conf) / SCALE_FACTOR; + return grade; +} +EXPORT_SYMBOL_IF_IWLWIFI_KUNIT(iwl_mvm_get_link_grade); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 0dd83e0171ba..c477978d8fa3 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -2449,6 +2449,7 @@ u32 iwl_mvm_get_sec_flags(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct ieee80211_key_conf *keyconf); +unsigned int iwl_mvm_get_link_grade(struct ieee80211_bss_conf *link_conf); bool iwl_rfi_supported(struct iwl_mvm *mvm); int iwl_rfi_send_config_cmd(struct iwl_mvm *mvm, diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tests/Makefile b/drivers/net/wireless/intel/iwlwifi/mvm/tests/Makefile new file mode 100644 index 000000000000..b13aebbf7d5e --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tests/Makefile @@ -0,0 +1,3 @@ +iwlmvm-tests-y += module.o links.o + +obj-$(CONFIG_IWLWIFI_KUNIT_TESTS) += iwlmvm-tests.o 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..321d18de1ca3 --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tests/links.c @@ -0,0 +1,210 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * KUnit tests for channel helper functions + * + * Copyright (C) 2024 Intel Corporation + */ +#include +#include "../mvm.h" +#include + +MODULE_IMPORT_NS(EXPORTED_FOR_KUNIT_TESTING); + +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 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 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); diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tests/module.c b/drivers/net/wireless/intel/iwlwifi/mvm/tests/module.c new file mode 100644 index 000000000000..f556acbac77f --- /dev/null +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tests/module.c @@ -0,0 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * This is just module boilerplate for the iwlmvm kunit module. + * + * Copyright (C) 2024 Intel Corporation + */ +#include + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("kunit tests for iwlmvm"); diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h index 7f9b829dcb1e..de2dce743ee2 100644 --- a/include/linux/ieee80211.h +++ b/include/linux/ieee80211.h @@ -1287,6 +1287,24 @@ struct ieee80211_ttlm_elem { u8 optional[]; } __packed; +/** + * struct ieee80211_bss_load_elem - BSS Load elemen + * + * Defined in section 9.4.2.26 in IEEE 802.11-REVme D4.1 + * + * @sta_count: total number of STAs currently associated with the AP. + * @channel_util: Percentage of time that the access point sensed the channel + * was busy. This value is in range [0, 255], the highest value means + * 100% busy. + * @avail_admission_capa: remaining amount of medium time used for admission + * control. + */ +struct ieee80211_bss_load_elem { + __le16 sta_count; + u8 channel_util; + __le16 avail_admission_capa; +} __packed; + struct ieee80211_mgmt { __le16 frame_control; __le16 duration; -- cgit v1.2.3-59-g8ed1b