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authorIlan Peer <ilan.peer@intel.com>2022-02-14 17:29:53 +0100
committerJohannes Berg <johannes.berg@intel.com>2022-02-16 15:42:29 +0100
commit5cd5a8a3e2fb11b1c8a09f062c44c1e228ef987a (patch)
tree392df4a0bd12da5547679485bc6d3c4338b472b0 /include/net/cfg80211.h
parent2a2c86f15e17c5013b9897b67d895e64a25ae3cb (diff)
downloadlwn-5cd5a8a3e2fb11b1c8a09f062c44c1e228ef987a.tar.gz
lwn-5cd5a8a3e2fb11b1c8a09f062c44c1e228ef987a.zip
cfg80211: Add data structures to capture EHT capabilities
And advertise EHT capabilities to user space when supported. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Link: https://lore.kernel.org/r/20220214173004.6fb70658529f.I2413a37c8f7d2d6d638038a3d95360a3fce0114d@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include/net/cfg80211.h')
-rw-r--r--include/net/cfg80211.h63
1 files changed, 63 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index f6db085ff3df..7bec15f605be 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -361,6 +361,48 @@ struct ieee80211_sta_he_cap {
};
/**
+ * struct ieee80211_eht_mcs_nss_supp - EHT max supported NSS per MCS
+ *
+ * See P802.11be_D1.3 Table 9-401k - "Subfields of the Supported EHT-MCS
+ * and NSS Set field"
+ *
+ * @only_20mhz: MCS/NSS support for 20 MHz-only STA.
+ * @bw._80: MCS/NSS support for BW <= 80 MHz
+ * @bw._160: MCS/NSS support for BW = 160 MHz
+ * @bw._320: MCS/NSS support for BW = 320 MHz
+ */
+struct ieee80211_eht_mcs_nss_supp {
+ union {
+ struct ieee80211_eht_mcs_nss_supp_20mhz_only only_20mhz;
+ struct {
+ struct ieee80211_eht_mcs_nss_supp_bw _80;
+ struct ieee80211_eht_mcs_nss_supp_bw _160;
+ struct ieee80211_eht_mcs_nss_supp_bw _320;
+ } __packed bw;
+ } __packed;
+} __packed;
+
+#define IEEE80211_EHT_PPE_THRES_MAX_LEN 32
+
+/**
+ * struct ieee80211_sta_eht_cap - STA's EHT capabilities
+ *
+ * This structure describes most essential parameters needed
+ * to describe 802.11be EHT capabilities for a STA.
+ *
+ * @has_eht: true iff EHT data is valid.
+ * @eht_cap_elem: Fixed portion of the eht capabilities element.
+ * @eht_mcs_nss_supp: The supported NSS/MCS combinations.
+ * @eht_ppe_thres: Holds the PPE Thresholds data.
+ */
+struct ieee80211_sta_eht_cap {
+ bool has_eht;
+ struct ieee80211_eht_cap_elem_fixed eht_cap_elem;
+ struct ieee80211_eht_mcs_nss_supp eht_mcs_nss_supp;
+ u8 eht_ppe_thres[IEEE80211_EHT_PPE_THRES_MAX_LEN];
+};
+
+/**
* struct ieee80211_sband_iftype_data - sband data per interface type
*
* This structure encapsulates sband data that is relevant for the
@@ -379,6 +421,7 @@ struct ieee80211_sband_iftype_data {
u16 types_mask;
struct ieee80211_sta_he_cap he_cap;
struct ieee80211_he_6ghz_capa he_6ghz_capa;
+ struct ieee80211_sta_eht_cap eht_cap;
struct {
const u8 *data;
unsigned int len;
@@ -562,6 +605,26 @@ ieee80211_get_he_6ghz_capa(const struct ieee80211_supported_band *sband,
}
/**
+ * ieee80211_get_eht_iftype_cap - return ETH capabilities for an sband's iftype
+ * @sband: the sband to search for the iftype on
+ * @iftype: enum nl80211_iftype
+ *
+ * Return: pointer to the struct ieee80211_sta_eht_cap, or NULL is none found
+ */
+static inline const struct ieee80211_sta_eht_cap *
+ieee80211_get_eht_iftype_cap(const struct ieee80211_supported_band *sband,
+ enum nl80211_iftype iftype)
+{
+ const struct ieee80211_sband_iftype_data *data =
+ ieee80211_get_sband_iftype_data(sband, iftype);
+
+ if (data && data->eht_cap.has_eht)
+ return &data->eht_cap;
+
+ return NULL;
+}
+
+/**
* wiphy_read_of_freq_limits - read frequency limits from device tree
*
* @wiphy: the wireless device to get extra limits for