qcacmn: Add QCA vendor interface to support per-MLO link configurations

Add support for per-MLO link configurations in
QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION and
QCA_NL80211_VENDOR_SUBCMD_GET_WIFI_CONFIGURATION commands.

Additionally, add documentation for
QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION and
QCA_NL80211_VENDOR_SUBCMD_GET_WIFI_CONFIGURATION commands.

Change-Id: Id83912079b3a4876891ac48beb069b17d4b8ebbf
CRs-Fixed: 3540412

os_if/linux/qca_vendor.h

@@ -121,6 +121,32 @@
  * @QCA_NL80211_VENDOR_SUBCMD_DFS_OFFLOAD_RADAR_DETECTED: Indicate that the
  * 	driver detected radar signal on the current operating channel
  * @QCA_NL80211_VENDOR_SUBCMD_GET_WIFI_INFO: get wlan driver information
+ * @QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION: This command is used to
+ *	configure various wiphy or interface level configurations. Attributes
+ *	are defined in enum qca_wlan_vendor_attr_config. Userspace can send one
+ *	or more configuration attributes with a single command. The driver
+ *	accepts the command only if all the configurations are known, otherwise
+ *	it rejects the command. The driver returns success only if processing of
+ *	all the configurations succeeds. The driver continues to process all the
+ *	configurations even if processing of some configurations failed and
+ *	returns the last error occurred while processing the failed
+ *	configurations.
+ *
+ * @QCA_NL80211_VENDOR_SUBCMD_GET_WIFI_CONFIGURATION: This command is used to
+ *	get the current values of the various wiphy or interface level
+ *	configurations. Attributes are defined in enum
+ *	qca_wlan_vendor_attr_config. Userspace needs to specify the
+ *	configuration attributes for which it wants to get the values in the
+ *	command, there is no significance for the value sent in the attribute
+ *	unless explicitly specified in the corresponding configuration
+ *	attribute documentation. The driver accepts the command only if all the
+ *	configurations are known, otherwise it rejects the command. The driver
+ *	returns success only if fetching of all configuration values succeeds
+ *	and indicates the configuration values in corresponding attributes in
+ *	the response. The driver continues to process all the configurations
+ *	even if processing of some configurations failed and returns the last
+ *	error occurred while processing the failed configurations.
+ *
  * @QCA_NL80211_VENDOR_SUBCMD_WIFI_LOGGER_START: start wifi logger
  * @QCA_NL80211_VENDOR_SUBCMD_WIFI_LOGGER_MEMORY_DUMP: memory dump request
  * @QCA_NL80211_VENDOR_SUBCMD_GET_LOGGER_FEATURE_SET: get logger feature set
@@ -5675,6 +5701,40 @@ enum qca_wlan_vendor_attr_config {
 	 */
 	QCA_WLAN_VENDOR_ATTR_CONFIG_EPCS_FUNCTION = 98,
 
+	/* 8-bit unsigned value. Used only for representing MLO link ID of a
+	 * link inside %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINKS.
+	 */
+	QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINK_ID = 99,
+
+	/* Array of nested links each identified by
+	 * %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINK_ID. This uses values defined in
+	 * enum qca_wlan_vendor_attr_config, explicit documentation shall be
+	 * added for the attributes in enum qca_wlan_vendor_attr_config to
+	 * support per-MLO link configuration through
+	 * %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINKS.
+	 *
+	 * Userspace can configure a single link or multiple links with this
+	 * attribute by nesting the corresponding configuration attributes and
+	 * %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINK_ID for each link.
+	 *
+	 * Userspace can fetch the configuration attribute values for a single
+	 * link or multiple links with this attribute by nesting the
+	 * corresponding configuration attributes and
+	 * %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINK_ID for each link.
+	 *
+	 * For STA interface, this attribute is applicable only in connected
+	 * state when the current connection is MLO capable. The valid values of
+	 * %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINK_ID are the link IDs of the
+	 * connected AP MLD links.
+	 *
+	 * For AP interface, this configuration applicable only after adding
+	 * MLO links to the AP interface with %NL80211_CMD_ADD_LINK and the
+	 * valid values of %QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINK_ID are the link
+	 * IDs specified in %NL80211_CMD_ADD_LINK while adding the MLO links to
+	 * the AP interface.
+	 */
+	QCA_WLAN_VENDOR_ATTR_CONFIG_MLO_LINKS = 100,
+
 	/* keep last */
 	QCA_WLAN_VENDOR_ATTR_CONFIG_AFTER_LAST,
 	QCA_WLAN_VENDOR_ATTR_CONFIG_MAX =