Merge "cfg80211: support virtual interfaces with different beacon intervals"

2 files changed, 21 insertions, 2 deletions

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 35c527c7d2e4..b89c9c2f7f6e 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -796,11 +796,19 @@ struct cfg80211_csa_settings {
  * @iftype_num: array with the number of interfaces of each interface
  *	type.  The index is the interface type as specified in &enum
  *	nl80211_iftype.
+ * @beacon_int_gcd: a value specifying GCD of all beaconing interfaces,
+ *	the GCD of a single value is considered the value itself, so for
+ *	a single interface this should be set to that interface's beacon
+ *	interval
+ * @beacon_int_different: a flag indicating whether or not all beacon
+ *	intervals (of beaconing interfaces) are different or not.
  */
 struct iface_combination_params {
 	int num_different_channels;
 	u8 radar_detect;
 	int iftype_num[NUM_NL80211_IFTYPES];
+	u32 beacon_int_gcd;
+	bool beacon_int_different;
 };
 
 /**
@@ -2894,6 +2902,12 @@ struct ieee80211_iface_limit {
  *	only in special cases.
  * @radar_detect_widths: bitmap of channel widths supported for radar detection
  * @radar_detect_regions: bitmap of regions supported for radar detection
+ * @beacon_int_min_gcd: This interface combination supports different
+ *	beacon intervals.
+ *	= 0 - all beacon intervals for different interface must be same.
+ *	> 0 - any beacon interval for the interface part of this combination AND
+ *	      *GCD* of all beacon intervals from beaconing interfaces of this
+ *	      combination must be greater or equal to this value.
  *
  * With this structure the driver can describe which interface
  * combinations it supports concurrently.
@@ -2952,6 +2966,7 @@ struct ieee80211_iface_combination {
 	bool beacon_int_infra_match;
 	u8 radar_detect_widths;
 	u8 radar_detect_regions;
+	u32 beacon_int_min_gcd;
 };
 
 struct ieee80211_txrx_stypes {
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 5305e8f4fce1..696a4322844a 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -4101,6 +4101,9 @@ enum nl80211_iface_limit_attrs {
  *	of supported channel widths for radar detection.
  * @NL80211_IFACE_COMB_RADAR_DETECT_REGIONS: u32 attribute containing the bitmap
  *	of supported regulatory regions for radar detection.
+ * @NL80211_IFACE_COMB_BI_MIN_GCD: u32 attribute specifying the minimum GCD of
+ *	different beacon intervals supported by all the interface combinations
+ *	in this group (if not present, all beacon intervals be identical).
  * @NUM_NL80211_IFACE_COMB: number of attributes
  * @MAX_NL80211_IFACE_COMB: highest attribute number
  *
@@ -4108,8 +4111,8 @@ enum nl80211_iface_limit_attrs {
  *	limits = [ #{STA} <= 1, #{AP} <= 1 ], matching BI, channels = 1, max = 2
  *	=> allows an AP and a STA that must match BIs
  *
- *	numbers = [ #{AP, P2P-GO} <= 8 ], channels = 1, max = 8
- *	=> allows 8 of AP/GO
+ *	numbers = [ #{AP, P2P-GO} <= 8 ], BI min gcd, channels = 1, max = 8,
+ *	=> allows 8 of AP/GO that can have BI gcd >= min gcd
  *
  *	numbers = [ #{STA} <= 2 ], channels = 2, max = 2
  *	=> allows two STAs on different channels
@@ -4135,6 +4138,7 @@ enum nl80211_if_combination_attrs {
 	NL80211_IFACE_COMB_NUM_CHANNELS,
 	NL80211_IFACE_COMB_RADAR_DETECT_WIDTHS,
 	NL80211_IFACE_COMB_RADAR_DETECT_REGIONS,
+	NL80211_IFACE_COMB_BI_MIN_GCD,
 
 	/* keep last */
 	NUM_NL80211_IFACE_COMB,