Merge tag 'wireless-next-2022-05-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next

Kalle Valo says:

====================
wireless-next patches for v5.19

First set of patches for v5.19 and this is a big one. We have two new
drivers, a change in mac80211 STA API affecting most drivers and
ath11k getting support for WCN6750. And as usual lots of fixes and
cleanups all over.

Major changes:

new drivers
 - wfx: silicon labs devices
 - plfxlc: pureLiFi X, XL, XC devices

mac80211
 - host based BSS color collision detection
 - prepare sta handling for IEEE 802.11be Multi-Link Operation (MLO) support

rtw88
 - support TP-Link T2E devices

rtw89
 - support firmware crash simulation
 - preparation for 8852ce hardware support

ath11k
 - Wake-on-WLAN support for QCA6390 and WCN6855
 - device recovery (firmware restart) support for QCA6390 and WCN6855
 - support setting Specific Absorption Rate (SAR) for WCN6855
 - read country code from SMBIOS for WCN6855/QCA6390
 - support for WCN6750

wcn36xx
 - support for transmit rate reporting to user space

* tag 'wireless-next-2022-05-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (228 commits)
  rtw89: 8852c: rfk: add DPK
  rtw89: 8852c: rfk: add IQK
  rtw89: 8852c: rfk: add RX DCK
  rtw89: 8852c: rfk: add RCK
  rtw89: 8852c: rfk: add TSSI
  rtw89: 8852c: rfk: add LCK
  rtw89: 8852c: rfk: add DACK
  rtw89: 8852c: rfk: add RFK tables
  plfxlc: fix le16_to_cpu warning for beacon_interval
  rtw88: remove a copy of the NAPI_POLL_WEIGHT define
  carl9170: tx: fix an incorrect use of list iterator
  wil6210: use NAPI_POLL_WEIGHT for napi budget
  ath10k: remove a copy of the NAPI_POLL_WEIGHT define
  ath11k: Add support for WCN6750 device
  ath11k: Datapath changes to support WCN6750
  ath11k: HAL changes to support WCN6750
  ath11k: Add QMI changes for WCN6750
  ath11k: Fetch device information via QMI for WCN6750
  ath11k: Add register access logic for WCN6750
  ath11k: Add HW params for WCN6750
  ...
====================

Link: https://lore.kernel.org/r/20220503153622.C1671C385A4@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 65 insertions, 25 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 382ebb862ea8..75880fc70700 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1201,9 +1201,9 @@ static inline struct ieee80211_rx_status *IEEE80211_SKB_RXCB(struct sk_buff *skb
  * in the TX status but the rate control information (it does clear
  * the count since you need to fill that in anyway).
  *
- * NOTE: You can only use this function if you do NOT use
- *	 info->driver_data! Use info->rate_driver_data
- *	 instead if you need only the less space that allows.
+ * NOTE: While the rates array is kept intact, this will wipe all of the
+ *	 driver_data fields in info, so it's up to the driver to restore
+ *	 any fields it needs after calling this helper.
  */
 static inline void
 ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
@@ -2056,6 +2056,45 @@ struct ieee80211_sta_txpwr {
 	enum nl80211_tx_power_setting type;
 };
 
+#define MAX_STA_LINKS			15
+
+/**
+ * struct ieee80211_link_sta - station Link specific info
+ * All link specific info for a STA link for a non MLD STA(single)
+ * or a MLD STA(multiple entries) are stored here.
+ *
+ * @addr: MAC address of the Link STA. For non-MLO STA this is same as the addr
+ *	in ieee80211_sta. For MLO Link STA this addr can be same or different
+ *	from addr in ieee80211_sta (representing MLD STA addr)
+ * @supp_rates: Bitmap of supported rates
+ * @ht_cap: HT capabilities of this STA; restricted to our own capabilities
+ * @vht_cap: VHT capabilities of this STA; restricted to our own capabilities
+ * @he_cap: HE capabilities of this STA
+ * @he_6ghz_capa: on 6 GHz, holds the HE 6 GHz band capabilities
+ * @eht_cap: EHT capabilities of this STA
+ * @bandwidth: current bandwidth the station can receive with
+ * @rx_nss: in HT/VHT, the maximum number of spatial streams the
+ *	station can receive at the moment, changed by operating mode
+ *	notifications and capabilities. The value is only valid after
+ *	the station moves to associated state.
+ * @txpwr: the station tx power configuration
+ *
+ */
+struct ieee80211_link_sta {
+	u8 addr[ETH_ALEN];
+
+	u32 supp_rates[NUM_NL80211_BANDS];
+	struct ieee80211_sta_ht_cap ht_cap;
+	struct ieee80211_sta_vht_cap vht_cap;
+	struct ieee80211_sta_he_cap he_cap;
+	struct ieee80211_he_6ghz_capa he_6ghz_capa;
+	struct ieee80211_sta_eht_cap eht_cap;
+
+	u8 rx_nss;
+	enum ieee80211_sta_rx_bandwidth bandwidth;
+	struct ieee80211_sta_txpwr txpwr;
+};
+
 /**
  * struct ieee80211_sta - station table entry
  *
@@ -2065,15 +2104,11 @@ struct ieee80211_sta_txpwr {
  * either be protected by rcu_read_lock() explicitly or implicitly,
  * or you must take good care to not use such a pointer after a
  * call to your sta_remove callback that removed it.
+ * This also represents the MLD STA in case of MLO association
+ * and holds pointers to various link STA's
  *
  * @addr: MAC address
  * @aid: AID we assigned to the station if we're an AP
- * @supp_rates: Bitmap of supported rates (per band)
- * @ht_cap: HT capabilities of this STA; restricted to our own capabilities
- * @vht_cap: VHT capabilities of this STA; restricted to our own capabilities
- * @he_cap: HE capabilities of this STA
- * @he_6ghz_capa: on 6 GHz, holds the HE 6 GHz band capabilities
- * @eht_cap: EHT capabilities of this STA
  * @max_rx_aggregation_subframes: maximal amount of frames in a single AMPDU
  *	that this station is allowed to transmit to us.
  *	Can be modified by driver.
@@ -2085,11 +2120,6 @@ struct ieee80211_sta_txpwr {
  *	if wme is supported. The bits order is like in
  *	IEEE80211_WMM_IE_STA_QOSINFO_AC_*.
  * @max_sp: max Service Period. Only valid if wme is supported.
- * @bandwidth: current bandwidth the station can receive with
- * @rx_nss: in HT/VHT, the maximum number of spatial streams the
- *	station can receive at the moment, changed by operating mode
- *	notifications and capabilities. The value is only valid after
- *	the station moves to associated state.
  * @smps_mode: current SMPS mode (off, static or dynamic)
  * @rates: rate control selection table
  * @tdls: indicates whether the STA is a TDLS peer
@@ -2102,25 +2132,28 @@ struct ieee80211_sta_txpwr {
  * @support_p2p_ps: indicates whether the STA supports P2P PS mechanism or not.
  * @max_rc_amsdu_len: Maximum A-MSDU size in bytes recommended by rate control.
  * @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID
- * @txpwr: the station tx power configuration
  * @txq: per-TID data TX queues (if driver uses the TXQ abstraction); note that
  *	the last entry (%IEEE80211_NUM_TIDS) is used for non-data frames
+ * @multi_link_sta: Identifies if this sta is a MLD STA
+ * @deflink: This holds the default link STA information, for non MLO STA all link
+ *	specific STA information is accessed through @deflink or through
+ *	link[0] which points to address of @deflink. For MLO Link STA
+ *	the first added link STA will point to deflink.
+ * @link: reference to Link Sta entries. For Non MLO STA, except 1st link,
+ *	i.e link[0] all links would be assigned to NULL by default and
+ *	would access link information via @deflink or link[0]. For MLO
+ *	STA, first link STA being added will point its link pointer to
+ *	@deflink address and remaining would be allocated and the address
+ *	would be assigned to link[link_id] where link_id is the id assigned
+ *	by the AP.
  */
 struct ieee80211_sta {
-	u32 supp_rates[NUM_NL80211_BANDS];
 	u8 addr[ETH_ALEN];
 	u16 aid;
-	struct ieee80211_sta_ht_cap ht_cap;
-	struct ieee80211_sta_vht_cap vht_cap;
-	struct ieee80211_sta_he_cap he_cap;
-	struct ieee80211_he_6ghz_capa he_6ghz_capa;
-	struct ieee80211_sta_eht_cap eht_cap;
 	u16 max_rx_aggregation_subframes;
 	bool wme;
 	u8 uapsd_queues;
 	u8 max_sp;
-	u8 rx_nss;
-	enum ieee80211_sta_rx_bandwidth bandwidth;
 	enum ieee80211_smps_mode smps_mode;
 	struct ieee80211_sta_rates __rcu *rates;
 	bool tdls;
@@ -2147,10 +2180,13 @@ struct ieee80211_sta {
 	bool support_p2p_ps;
 	u16 max_rc_amsdu_len;
 	u16 max_tid_amsdu_len[IEEE80211_NUM_TIDS];
-	struct ieee80211_sta_txpwr txpwr;
 
 	struct ieee80211_txq *txq[IEEE80211_NUM_TIDS + 1];
 
+	bool multi_link_sta;
+	struct ieee80211_link_sta deflink;
+	struct ieee80211_link_sta *link[MAX_STA_LINKS];
+
 	/* must be last */
 	u8 drv_priv[] __aligned(sizeof(void *));
 };
@@ -2434,6 +2470,9 @@ struct ieee80211_txq {
  *	usage and 802.11 frames with %RX_FLAG_ONLY_MONITOR set for monitor to
  *	the stack.
  *
+ * @IEEE80211_HW_DETECTS_COLOR_COLLISION: HW/driver has support for BSS color
+ *	collision detection and doesn't need it in software.
+ *
  * @NUM_IEEE80211_HW_FLAGS: number of hardware flags, used for sizing arrays
  */
 enum ieee80211_hw_flags {
@@ -2489,6 +2528,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_SUPPORTS_TX_ENCAP_OFFLOAD,
 	IEEE80211_HW_SUPPORTS_RX_DECAP_OFFLOAD,
 	IEEE80211_HW_SUPPORTS_CONC_MON_RX_DECAP,
+	IEEE80211_HW_DETECTS_COLOR_COLLISION,
 
 	/* keep last, obviously */
 	NUM_IEEE80211_HW_FLAGS
@@ -6367,7 +6407,7 @@ static inline int rate_supported(struct ieee80211_sta *sta,
 				 enum nl80211_band band,
 				 int index)
 {
-	return (sta == NULL || sta->supp_rates[band] & BIT(index));
+	return (sta == NULL || sta->deflink.supp_rates[band] & BIT(index));
 }
 
 static inline s8