Merge tag 'mac80211-next-for-net-next-2020-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
One batch of changes, containing:
 * hwsim improvements from Jouni and myself, to be able to
   test more scenarios easily
 * some more HE (802.11ax) support
 * some initial S1G (sub 1 GHz) work for fractional MHz channels
 * some (action) frame registration updates to help DPP support
 * along with other various improvements/fixes
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 150 insertions, 26 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 46ac80423b28..8b6d5c5184d1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -128,6 +128,7 @@ enum ieee80211_channel_flags {
  * with cfg80211.
  *
  * @center_freq: center frequency in MHz
+ * @freq_offset: offset from @center_freq, in KHz
  * @hw_value: hardware-specific value for the channel
  * @flags: channel flags from &enum ieee80211_channel_flags.
  * @orig_flags: channel flags at registration time, used by regulatory
@@ -149,6 +150,7 @@ enum ieee80211_channel_flags {
 struct ieee80211_channel {
 	enum nl80211_band band;
 	u32 center_freq;
+	u16 freq_offset;
 	u16 hw_value;
 	u32 flags;
 	int max_antenna_gain;
@@ -617,6 +619,7 @@ struct key_params {
  *	If edmg is requested (i.e. the .channels member is non-zero),
  *	chan will define the primary channel and all other
  *	parameters are ignored.
+ * @freq1_offset: offset from @center_freq1, in KHz
  */
 struct cfg80211_chan_def {
 	struct ieee80211_channel *chan;
@@ -624,6 +627,7 @@ struct cfg80211_chan_def {
 	u32 center_freq1;
 	u32 center_freq2;
 	struct ieee80211_edmg edmg;
+	u16 freq1_offset;
 };
 
 /**
@@ -713,6 +717,7 @@ cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
 	return (chandef1->chan == chandef2->chan &&
 		chandef1->width == chandef2->width &&
 		chandef1->center_freq1 == chandef2->center_freq1 &&
+		chandef1->freq1_offset == chandef2->freq1_offset &&
 		chandef1->center_freq2 == chandef2->center_freq2);
 }
 
@@ -1054,6 +1059,7 @@ enum cfg80211_ap_settings_flags {
  * @ht_required: stations must support HT
  * @vht_required: stations must support VHT
  * @twt_responder: Enable Target Wait Time
+ * @he_required: stations must support HE
  * @flags: flags, as defined in enum cfg80211_ap_settings_flags
  * @he_obss_pd: OBSS Packet Detection settings
  * @he_bss_color: BSS Color settings
@@ -1083,7 +1089,7 @@ struct cfg80211_ap_settings {
 	const struct ieee80211_vht_cap *vht_cap;
 	const struct ieee80211_he_cap_elem *he_cap;
 	const struct ieee80211_he_operation *he_oper;
-	bool ht_required, vht_required;
+	bool ht_required, vht_required, he_required;
 	bool twt_responder;
 	u32 flags;
 	struct ieee80211_he_obss_pd he_obss_pd;
@@ -3385,6 +3391,21 @@ struct cfg80211_update_owe_info {
 };
 
 /**
+ * struct mgmt_frame_regs - management frame registrations data
+ * @global_stypes: bitmap of management frame subtypes registered
+ *	for the entire device
+ * @interface_stypes: bitmap of management frame subtypes registered
+ *	for the given interface
+ * @global_mcast_rx: mcast RX is needed globally for these subtypes
+ * @interface_mcast_stypes: mcast RX is needed on this interface
+ *	for these subtypes
+ */
+struct mgmt_frame_regs {
+	u32 global_stypes, interface_stypes;
+	u32 global_mcast_stypes, interface_mcast_stypes;
+};
+
+/**
  * struct cfg80211_ops - backend description for wireless configuration
  *
  * This struct is registered by fullmac card drivers and/or wireless stacks
@@ -3608,8 +3629,8 @@ struct cfg80211_update_owe_info {
  *	The driver should not call cfg80211_sched_scan_stopped() for a requested
  *	stop (when this method returns 0).
  *
- * @mgmt_frame_register: Notify driver that a management frame type was
- *	registered. The callback is allowed to sleep.
+ * @update_mgmt_frame_registrations: Notify the driver that management frame
+ *	registrations were updated. The callback is allowed to sleep.
  *
  * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
  *	Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
@@ -3932,9 +3953,9 @@ struct cfg80211_ops {
 				      struct net_device *dev,
 				      u32 rate, u32 pkts, u32 intvl);
 
-	void	(*mgmt_frame_register)(struct wiphy *wiphy,
-				       struct wireless_dev *wdev,
-				       u16 frame_type, bool reg);
+	void	(*update_mgmt_frame_registrations)(struct wiphy *wiphy,
+						   struct wireless_dev *wdev,
+						   struct mgmt_frame_regs *upd);
 
 	int	(*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
 	int	(*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);
@@ -5015,6 +5036,7 @@ struct cfg80211_cqm_config;
  *	by cfg80211 on change_interface
  * @mgmt_registrations: list of registrations for management frames
  * @mgmt_registrations_lock: lock for the list
+ * @mgmt_registrations_update_wk: update work to defer from atomic context
  * @mtx: mutex used to lock data in this struct, may be used by drivers
  *	and some API functions require it held
  * @beacon_interval: beacon interval used on this device for transmitting
@@ -5045,6 +5067,8 @@ struct cfg80211_cqm_config;
  * @pmsr_list: (private) peer measurement requests
  * @pmsr_lock: (private) peer measurements requests/results lock
  * @pmsr_free_wk: (private) peer measurements cleanup work
+ * @unprot_beacon_reported: (private) timestamp of last
+ *	unprotected beacon report
  */
 struct wireless_dev {
 	struct wiphy *wiphy;
@@ -5058,6 +5082,7 @@ struct wireless_dev {
 
 	struct list_head mgmt_registrations;
 	spinlock_t mgmt_registrations_lock;
+	struct work_struct mgmt_registrations_update_wk;
 
 	struct mutex mtx;
 
@@ -5121,6 +5146,8 @@ struct wireless_dev {
 	struct list_head pmsr_list;
 	spinlock_t pmsr_lock;
 	struct work_struct pmsr_free_wk;
+
+	unsigned long unprot_beacon_reported;
 };
 
 static inline u8 *wdev_address(struct wireless_dev *wdev)
@@ -5156,29 +5183,91 @@ static inline void *wdev_priv(struct wireless_dev *wdev)
  */
 
 /**
+ * ieee80211_channel_equal - compare two struct ieee80211_channel
+ *
+ * @a: 1st struct ieee80211_channel
+ * @b: 2nd struct ieee80211_channel
+ * Return: true if center frequency of @a == @b
+ */
+static inline bool
+ieee80211_channel_equal(struct ieee80211_channel *a,
+			struct ieee80211_channel *b)
+{
+	return (a->center_freq == b->center_freq &&
+		a->freq_offset == b->freq_offset);
+}
+
+/**
+ * ieee80211_channel_to_khz - convert ieee80211_channel to frequency in KHz
+ * @chan: struct ieee80211_channel to convert
+ * Return: The corresponding frequency (in KHz)
+ */
+static inline u32
+ieee80211_channel_to_khz(const struct ieee80211_channel *chan)
+{
+	return MHZ_TO_KHZ(chan->center_freq) + chan->freq_offset;
+}
+
+/**
+ * ieee80211_channel_to_freq_khz - convert channel number to frequency
+ * @chan: channel number
+ * @band: band, necessary due to channel number overlap
+ * Return: The corresponding frequency (in KHz), or 0 if the conversion failed.
+ */
+u32 ieee80211_channel_to_freq_khz(int chan, enum nl80211_band band);
+
+/**
  * ieee80211_channel_to_frequency - convert channel number to frequency
  * @chan: channel number
  * @band: band, necessary due to channel number overlap
  * Return: The corresponding frequency (in MHz), or 0 if the conversion failed.
  */
-int ieee80211_channel_to_frequency(int chan, enum nl80211_band band);
+static inline int
+ieee80211_channel_to_frequency(int chan, enum nl80211_band band)
+{
+	return KHZ_TO_MHZ(ieee80211_channel_to_freq_khz(chan, band));
+}
+
+/**
+ * ieee80211_freq_khz_to_channel - convert frequency to channel number
+ * @freq: center frequency in KHz
+ * Return: The corresponding channel, or 0 if the conversion failed.
+ */
+int ieee80211_freq_khz_to_channel(u32 freq);
 
 /**
  * ieee80211_frequency_to_channel - convert frequency to channel number
- * @freq: center frequency
+ * @freq: center frequency in MHz
  * Return: The corresponding channel, or 0 if the conversion failed.
  */
-int ieee80211_frequency_to_channel(int freq);
+static inline int
+ieee80211_frequency_to_channel(int freq)
+{
+	return ieee80211_freq_khz_to_channel(MHZ_TO_KHZ(freq));
+}
+
+/**
+ * ieee80211_get_channel_khz - get channel struct from wiphy for specified
+ * frequency
+ * @wiphy: the struct wiphy to get the channel for
+ * @freq: the center frequency (in KHz) of the channel
+ * Return: The channel struct from @wiphy at @freq.
+ */
+struct ieee80211_channel *
+ieee80211_get_channel_khz(struct wiphy *wiphy, u32 freq);
 
 /**
  * ieee80211_get_channel - get channel struct from wiphy for specified frequency
  *
  * @wiphy: the struct wiphy to get the channel for
- * @freq: the center frequency of the channel
- *
+ * @freq: the center frequency (in MHz) of the channel
  * Return: The channel struct from @wiphy at @freq.
  */
-struct ieee80211_channel *ieee80211_get_channel(struct wiphy *wiphy, int freq);
+static inline struct ieee80211_channel *
+ieee80211_get_channel(struct wiphy *wiphy, int freq)
+{
+	return ieee80211_get_channel_khz(wiphy, MHZ_TO_KHZ(freq));
+}
 
 /**
  * ieee80211_get_response_rate - get basic rate for a given rate
@@ -6135,12 +6224,16 @@ void cfg80211_tx_mlme_mgmt(struct net_device *dev, const u8 *buf, size_t len);
 /**
  * cfg80211_rx_unprot_mlme_mgmt - notification of unprotected mlme mgmt frame
  * @dev: network device
- * @buf: deauthentication frame (header + body)
+ * @buf: received management frame (header + body)
  * @len: length of the frame data
  *
  * This function is called whenever a received deauthentication or dissassoc
  * frame has been dropped in station mode because of MFP being used but the
- * frame was not protected. This function may sleep.
+ * frame was not protected. This is also used to notify reception of a Beacon
+ * frame that was dropped because it did not include a valid MME MIC while
+ * beacon protection was enabled (BIGTK configured in station mode).
+ *
+ * This function may sleep.
  */
 void cfg80211_rx_unprot_mlme_mgmt(struct net_device *dev,
 				  const u8 *buf, size_t len);
@@ -7202,6 +7295,19 @@ bool ieee80211_operating_class_to_band(u8 operating_class,
 bool ieee80211_chandef_to_operating_class(struct cfg80211_chan_def *chandef,
 					  u8 *op_class);
 
+/**
+ * ieee80211_chandef_to_khz - convert chandef to frequency in KHz
+ *
+ * @chandef: the chandef to convert
+ *
+ * Returns the center frequency of chandef (1st segment) in KHz.
+ */
+static inline u32
+ieee80211_chandef_to_khz(const struct cfg80211_chan_def *chandef)
+{
+	return MHZ_TO_KHZ(chandef->center_freq1) + chandef->freq1_offset;
+}
+
 /*
  * cfg80211_tdls_oper_request - request userspace to perform TDLS operation
  * @dev: the device on which the operation is requested
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 97fec4d310ac..0d48e679efb0 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -508,6 +508,7 @@ struct ieee80211_ftm_responder_params {
  *	mode only, set if the AP advertises TWT responder role)
  * @twt_responder: does this BSS support TWT requester (relevant for managed
  *	mode only, set if the AP advertises TWT responder role)
+ * @twt_protected: does this BSS support protected TWT frames
  * @assoc: association status
  * @ibss_joined: indicates whether this station is part of an IBSS
  *	or not
@@ -603,7 +604,7 @@ struct ieee80211_ftm_responder_params {
  *	nontransmitted BSSIDs
  * @profile_periodicity: the least number of beacon frames need to be received
  *	in order to discover all the nontransmitted BSSIDs in the set.
- * @he_operation: HE operation information of the AP we are connected to
+ * @he_oper: HE operation information of the AP we are connected to
  * @he_obss_pd: OBSS Packet Detection parameters.
  * @he_bss_color: BSS coloring settings, if BSS supports HE
  */
@@ -618,6 +619,7 @@ struct ieee80211_bss_conf {
 	bool he_support;
 	bool twt_requester;
 	bool twt_responder;
+	bool twt_protected;
 	/* association related data */
 	bool assoc, ibss_joined;
 	bool ibss_creator;
@@ -666,7 +668,10 @@ struct ieee80211_bss_conf {
 	u8 bssid_indicator;
 	bool ema_ap;
 	u8 profile_periodicity;
-	struct ieee80211_he_operation he_operation;
+	struct {
+		u32 params;
+		u16 nss_set;
+	} he_oper;
 	struct ieee80211_he_obss_pd he_obss_pd;
 	struct cfg80211_he_bss_color he_bss_color;
 };
@@ -818,6 +823,8 @@ enum mac80211_tx_info_flags {
  * @IEEE80211_TX_CTRL_AMSDU: This frame is an A-MSDU frame
  * @IEEE80211_TX_CTRL_FAST_XMIT: This frame is going through the fast_xmit path
  * @IEEE80211_TX_CTRL_SKIP_MPATH_LOOKUP: This frame skips mesh path lookup
+ * @IEEE80211_TX_CTRL_HW_80211_ENCAP: This frame uses hardware encapsulation
+ *	(header conversion)
  *
  * These flags are used in tx_info->control.flags.
  */
@@ -1333,6 +1340,7 @@ enum mac80211_rx_encoding {
  * @freq: frequency the radio was tuned to when receiving this frame, in MHz
  *	This field must be set for management frames, but isn't strictly needed
  *	for data (other) frames - for those it only affects radiotap reporting.
+ * @freq_offset: @freq has a positive offset of 500Khz.
  * @signal: signal strength when receiving this frame, either in dBm, in dB or
  *	unspecified depending on the hardware capabilities flags
  *	@IEEE80211_HW_SIGNAL_*
@@ -1363,7 +1371,7 @@ struct ieee80211_rx_status {
 	u32 device_timestamp;
 	u32 ampdu_reference;
 	u32 flag;
-	u16 freq;
+	u16 freq: 13, freq_offset: 1;
 	u8 enc_flags;
 	u8 encoding:2, bw:3, he_ru:3;
 	u8 he_gi:2, he_dcm:1;
@@ -1379,6 +1387,13 @@ struct ieee80211_rx_status {
 	u8 zero_length_psdu_type;
 };
 
+static inline u32
+ieee80211_rx_status_to_khz(struct ieee80211_rx_status *rx_status)
+{
+	return MHZ_TO_KHZ(rx_status->freq) +
+	       (rx_status->freq_offset ? 500 : 0);
+}
+
 /**
  * struct ieee80211_vendor_radiotap - vendor radiotap data information
  * @present: presence bitmap for this vendor namespace
@@ -1620,6 +1635,8 @@ enum ieee80211_vif_flags {
  *	monitor interface (if that is requested.)
  * @probe_req_reg: probe requests should be reported to mac80211 for this
  *	interface.
+ * @rx_mcast_action_reg: multicast Action frames should be reported to mac80211
+ *	for this interface.
  * @drv_priv: data area for driver use, will always be aligned to
  *	sizeof(void \*).
  * @txq: the multicast data TX queue (if driver uses the TXQ abstraction)
@@ -1647,7 +1664,8 @@ struct ieee80211_vif {
 	struct dentry *debugfs_dir;
 #endif
 
-	unsigned int probe_req_reg;
+	bool probe_req_reg;
+	bool rx_mcast_action_reg;
 
 	bool txqs_stopped[IEEE80211_NUM_ACS];
 
@@ -3091,6 +3109,8 @@ void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb);
  * @FIF_PSPOLL: pass PS Poll frames
  *
  * @FIF_PROBE_REQ: pass probe request frames
+ *
+ * @FIF_MCAST_ACTION: pass multicast Action frames
  */
 enum ieee80211_filter_flags {
 	FIF_ALLMULTI		= 1<<1,
@@ -3101,6 +3121,7 @@ enum ieee80211_filter_flags {
 	FIF_OTHER_BSS		= 1<<6,
 	FIF_PSPOLL		= 1<<7,
 	FIF_PROBE_REQ		= 1<<8,
+	FIF_MCAST_ACTION	= 1<<9,
 };
 
 /**
@@ -3117,7 +3138,10 @@ enum ieee80211_filter_flags {
  * @IEEE80211_AMPDU_RX_START: start RX aggregation
  * @IEEE80211_AMPDU_RX_STOP: stop RX aggregation
  * @IEEE80211_AMPDU_TX_START: start TX aggregation, the driver must either
- *	call ieee80211_start_tx_ba_cb_irqsafe() or return the special
+ *	call ieee80211_start_tx_ba_cb_irqsafe() or
+ *	call ieee80211_start_tx_ba_cb_irqsafe() with status
+ *	%IEEE80211_AMPDU_TX_START_DELAY_ADDBA to delay addba after
+ *	ieee80211_start_tx_ba_cb_irqsafe is called, or just return the special
  *	status %IEEE80211_AMPDU_TX_START_IMMEDIATE.
  * @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational
  * @IEEE80211_AMPDU_TX_STOP_CONT: stop TX aggregation but continue transmitting
@@ -3143,6 +3167,7 @@ enum ieee80211_ampdu_mlme_action {
 };
 
 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
+#define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2
 
 /**
  * struct ieee80211_ampdu_params - AMPDU action parameters
diff --git a/include/net/regulatory.h b/include/net/regulatory.h
index 3469750df0f4..09a3099886e5 100644
--- a/include/net/regulatory.h
+++ b/include/net/regulatory.h
@@ -231,13 +231,6 @@ struct ieee80211_regdomain {
 	struct ieee80211_reg_rule reg_rules[];
 };
 
-#define MHZ_TO_KHZ(freq) ((freq) * 1000)
-#define KHZ_TO_MHZ(freq) ((freq) / 1000)
-#define DBI_TO_MBI(gain) ((gain) * 100)
-#define MBI_TO_DBI(gain) ((gain) / 100)
-#define DBM_TO_MBM(gain) ((gain) * 100)
-#define MBM_TO_DBM(gain) ((gain) / 100)
-
 #define REG_RULE_EXT(start, end, bw, gain, eirp, dfs_cac, reg_flags)	\
 {									\
 	.freq_range.start_freq_khz = MHZ_TO_KHZ(start),			\