wifi: nl80211: Add more NAN capabilities

Add better break down for NAN capabilities, as NAN has multiple optional
features. This allows to better indicate which features are supported or
or offloaded to the device.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250908140015.bb02cd8c1596.I01fb2e8dc3662b847f3c27117bc4e199fc96d0a3@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index c5a7658b7297092d8e02cc8c840471f3f4729a56..423e258cdbd28c6e7dc26c2a614e2fce7d938cf6 100644 (file)
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2964,6 +2964,10 @@ enum nl80211_commands {
  * @NL80211_ATTR_NAN_NEW_CLUSTER: Flag attribute indicating that a new
  *     NAN cluster has been created. This is used with
  *     %NL80211_CMD_NAN_CLUSTER_JOINED
+ * @NL80211_ATTR_NAN_CAPABILITIES: Nested attribute for NAN capabilities.
+ *     This is used with %NL80211_CMD_GET_WIPHY to indicate the NAN
+ *     capabilities supported by the driver. See &enum nl80211_nan_capabilities
+ *     for details.
  *
  * @NUM_NL80211_ATTR: total number of nl80211_attrs available
  * @NL80211_ATTR_MAX: highest attribute number currently defined
@@ -3529,6 +3533,7 @@ enum nl80211_attrs {
        NL80211_ATTR_BSS_PARAM,
        NL80211_ATTR_NAN_CONFIG,
        NL80211_ATTR_NAN_NEW_CLUSTER,
+       NL80211_ATTR_NAN_CAPABILITIES,
 
        /* add attributes here, update the policy in nl80211.c */
 
@@ -8362,4 +8367,54 @@ enum nl80211_s1g_short_beacon_attrs {
                __NL80211_S1G_SHORT_BEACON_ATTR_LAST - 1
 };
 
+/**
+ * enum nl80211_nan_capabilities - NAN (Neighbor Aware Networking)
+ *     capabilities.
+ *
+ * @__NL80211_NAN_CAPABILITIES_INVALID: Invalid.
+ * @NL80211_NAN_CAPA_CONFIGURABLE_SYNC: Flag attribute indicating that
+ *     the device supports configurable synchronization. If set, the device
+ *     should be able to handle %NL80211_ATTR_NAN_CONFIG
+ *     attribute in the %NL80211_CMD_START_NAN (and change) command.
+ * @NL80211_NAN_CAPA_USERSPACE_DE: Flag attribute indicating that
+ *     NAN Discovery Engine (DE) is not offloaded and the driver assumes
+ *     user space DE implementation. When set, %NL80211_CMD_ADD_NAN_FUNCTION,
+ *     %NL80211_CMD_DEL_NAN_FUNCTION and %NL80211_CMD_NAN_MATCH commands
+ *     should not be used. In addition, the device/driver should support
+ *     sending discovery window (DW) notifications using
+ *     %NL80211_CMD_NAN_NEXT_DW_NOTIFICATION and handling transmission and
+ *     reception of NAN SDF frames on NAN device interface during DW windows.
+ *     (%NL80211_CMD_FRAME is used to transmit SDFs)
+ * @NL80211_NAN_CAPA_OP_MODE: u8 attribute indicating the supported operation
+ *     modes as defined in Wi-Fi Aware (TM) specification Table 81 (Operation
+ *     Mode field format).
+ * @NL80211_NAN_CAPA_NUM_ANTENNAS: u8 attribute indicating the number of
+ *     TX and RX antennas supported by the device. Lower nibble indicates
+ *     the number of TX antennas and upper nibble indicates the number of RX
+ *     antennas. Value 0 indicates the information is not available.
+ *     See table 79 of Wi-Fi Aware (TM) specification (Number of
+ *     Antennas field).
+ * @NL80211_NAN_CAPA_MAX_CHANNEL_SWITCH_TIME: u16 attribute indicating the
+ *     maximum time in microseconds that the device requires to switch
+ *     channels.
+ * @NL80211_NAN_CAPA_CAPABILITIES: u8 attribute containing the
+ *     capabilities of the device as defined in Wi-Fi Aware (TM)
+ *     specification Table 79 (Capabilities field).
+ * @__NL80211_NAN_CAPABILITIES_LAST: Internal
+ * @NL80211_NAN_CAPABILITIES_MAX: Highest NAN capability attribute.
+ */
+enum nl80211_nan_capabilities {
+       __NL80211_NAN_CAPABILITIES_INVALID,
+
+       NL80211_NAN_CAPA_CONFIGURABLE_SYNC,
+       NL80211_NAN_CAPA_USERSPACE_DE,
+       NL80211_NAN_CAPA_OP_MODE,
+       NL80211_NAN_CAPA_NUM_ANTENNAS,
+       NL80211_NAN_CAPA_MAX_CHANNEL_SWITCH_TIME,
+       NL80211_NAN_CAPA_CAPABILITIES,
+       /* keep last */
+       __NL80211_NAN_CAPABILITIES_LAST,
+       NL80211_NAN_CAPABILITIES_MAX = __NL80211_NAN_CAPABILITIES_LAST - 1,
+};
+
 #endif /* __LINUX_NL80211_H */