qcacmn: QCA vendor attributes to configure TX and RX NSS

Define QCA vendor attributes to dynamically configure TX NSS and RX NSS
to be used with QCA_NL80211_VENDOR_SUBCMD_SET_WIFI_CONFIGURATION and
QCA_NL80211_VENDOR_SUBCMD_GET_WIFI_CONFIGURATION commands.

Change-Id: I9b3b3d3c5be2abd01fa8669b10c2961c271ecdbb
CRs-Fixed: 2831257

os_if/linux/qca_vendor.h

@@ -4460,6 +4460,10 @@ enum qca_wlan_vendor_attr_config {
 	 * frame. The updated NSS value after the connection shall not be
 	 * greater than the one negotiated during the connection. Any such
 	 * higher value configuration shall be returned with a failure.
+	 * Only symmetric NSS configuration (such as 2X2 or 1X1) can be done
+	 * using this attribute. QCA_WLAN_VENDOR_ATTR_CONFIG_TX_NSS and
+	 * QCA_WLAN_VENDOR_ATTR_CONFIG_RX_NSS attributes shall be used to
+	 * configure the asymmetric NSS configuration (such as 1X2).
 	 */
 	QCA_WLAN_VENDOR_ATTR_CONFIG_NSS = 70,
 
@@ -4509,6 +4513,45 @@ enum qca_wlan_vendor_attr_config {
 	 */
 	QCA_WLAN_VENDOR_ATTR_CONFIG_ANI_LEVEL = 76,
 
+	/* 8-bit unsigned value. This attribute is used to dynamically configure
+	 * the number of spatial streams used for transmitting the data. When
+	 * configured in the disconnected state, the configured value will
+	 * be considered for the following connection attempt.
+	 * If the NSS is updated after the connection, the updated NSS value
+	 * is notified to the peer using the Operating Mode Notification/Spatial
+	 * Multiplexing Power Save frame.
+	 * The TX NSS value configured after the connection shall not be greater
+	 * than the value negotiated during the connection. Any such higher
+	 * value configuration shall be treated as invalid configuration by
+	 * the driver. This attribute shall be configured along with
+	 * QCA_WLAN_VENDOR_ATTR_CONFIG_RX_NSS attribute to define the symmetric
+	 * configuration (such as 2X2 or 1X1) or the asymmetric
+	 * configuration (such as 1X2).
+	 * If QCA_WLAN_VENDOR_ATTR_CONFIG_NSS attribute is also provided along
+	 * with this QCA_WLAN_VENDOR_ATTR_CONFIG_TX_NSS attribute the driver
+	 * will update the TX NSS based on QCA_WLAN_VENDOR_ATTR_CONFIG_TX_NSS.
+	 */
+	QCA_WLAN_VENDOR_ATTR_CONFIG_TX_NSS = 77,
+
+	/* 8-bit unsigned value. This attribute is used to dynamically configure
+	 * the number of spatial streams used for receiving the data. When
+	 * configured in the disconnected state, the configured value will
+	 * be considered for the following connection attempt.
+	 * If the NSS is updated after the connection, the updated NSS value
+	 * is notified to the peer using the Operating Mode Notification/Spatial
+	 * Multiplexing Power Save frame.
+	 * The RX NSS value configured after the connection shall not be greater
+	 * than the value negotiated during the connection. Any such higher
+	 * value configuration shall be treated as invalid configuration by
+	 * the driver. This attribute shall be configured along with
+	 * QCA_WLAN_VENDOR_ATTR_CONFIG_TX_NSS attribute to define the symmetric
+	 * configuration (such as 2X2 or 1X1) or the asymmetric
+	 * configuration (such as 1X2).
+	 * If QCA_WLAN_VENDOR_ATTR_CONFIG_NSS attribute is also provided along
+	 * with this QCA_WLAN_VENDOR_ATTR_CONFIG_RX_NSS attribute the driver
+	 * will update the RX NSS based on QCA_WLAN_VENDOR_ATTR_CONFIG_RX_NSS.
+	 */
+	QCA_WLAN_VENDOR_ATTR_CONFIG_RX_NSS = 78,
 	/* keep last */
 	QCA_WLAN_VENDOR_ATTR_CONFIG_AFTER_LAST,
 	QCA_WLAN_VENDOR_ATTR_CONFIG_MAX =