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[wireless-next,v2] wifi: mac80211: Update MCS15 support in link_conf

Message ID 20250505152836.3266829-1-quic_mkumarg@quicinc.com
State New
Headers show
Series [wireless-next,v2] wifi: mac80211: Update MCS15 support in link_conf | expand

Commit Message

Mohan Kumar G May 5, 2025, 3:28 p.m. UTC 
As per IEEE 802.11be-2024 - 9.4.2.321, EHT operation element
contains MCS15 Disable subfield as the sixth bit, which is set when
MCS15 support is not enabled.

Get MCS15 support from EHT operation params and add it in link_conf
so that driver can use this value to know if EHT-MCS 15 reception
is enabled.

Co-developed-by: Dhanavandhana Kannan <quic_dhanavan1@quicinc.com>
Signed-off-by: Dhanavandhana Kannan <quic_dhanavan1@quicinc.com>
Signed-off-by: Mohan Kumar G <quic_mkumarg@quicinc.com>
---

NOTE: An upcoming ath12k patch will utilize this change.

v2:
 - Added eht_ prefix to disable_mcs15

---
 include/linux/ieee80211.h | 1 +
 include/net/mac80211.h    | 3 +++
 net/mac80211/cfg.c        | 3 +++
 3 files changed, 7 insertions(+)


base-commit: 885e5cbaa0ee3738fcd99167439459ede2cc102c
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Patch

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 15a87f522017..fd26930a26f8 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2325,6 +2325,7 @@  struct ieee80211_eht_cap_elem {
 #define IEEE80211_EHT_OPER_EHT_DEF_PE_DURATION	                0x04
 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_LIMIT         0x08
 #define IEEE80211_EHT_OPER_GROUP_ADDRESSED_BU_IND_EXP_MASK      0x30
+#define IEEE80211_EHT_OPER_MCS15_DISABLE                        0x40
 
 /**
  * struct ieee80211_eht_operation - eht operation element
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index fdafc37d17cc..82617579d910 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -744,6 +744,7 @@  struct ieee80211_parsed_tpe {
  * @eht_80mhz_full_bw_ul_mumimo: in AP-mode, does this BSS support the
  *	reception of an EHT TB PPDU on an RU that spans the entire PPDU
  *	bandwidth
+ * @eht_disable_mcs15: disable EHT-MCS 15 reception capability.
  * @bss_param_ch_cnt: in BSS-mode, the BSS params change count. This
  *	information is the latest known value. It can come from this link's
  *	beacon or from a beacon sent by another link.
@@ -852,6 +853,8 @@  struct ieee80211_bss_conf {
 	bool eht_su_beamformee;
 	bool eht_mu_beamformer;
 	bool eht_80mhz_full_bw_ul_mumimo;
+	bool eht_disable_mcs15;
+
 	u8 bss_param_ch_cnt;
 	u8 bss_param_ch_cnt_link_id;
 };
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 9017b98fea04..71f6030e3511 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1421,6 +1421,9 @@  static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 				(IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_80MHZ |
 				 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_160MHZ |
 				 IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ);
+		link_conf->eht_disable_mcs15 =
+			!!(u8_get_bits(params->eht_oper->params,
+				       IEEE80211_EHT_OPER_MCS15_DISABLE));
 	} else {
 		link_conf->eht_su_beamformer = false;
 		link_conf->eht_su_beamformee = false;