qcacmn: Enhance QCA vendor roam event to indicate MLO links after reassociation

Enhance QCA_NL80211_VENDOR_SUBCMD_KEY_MGMT_ROAM_AUTH event for the
driver to indicate the information of the associated links of MLO
roaming.

Change-Id: I5cede840ec42bb45ec13e35a1f5caa0c0674047a
CRs-Fixed: 3278009

os_if/linux/qca_vendor.h

@@ -2792,7 +2792,7 @@ enum qca_roam_reason {
 
 /**
  * enum qca_wlan_vendor_attr_roam_auth - vendor event for roaming
- * @QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID: BSSID of the roamed AP
+ *
  * @QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REQ_IE: Request IE
  * @QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_RESP_IE: Response IE
  * @QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AUTHORIZED: Authorization Status
@@ -2826,6 +2826,9 @@ enum qca_roam_reason {
  */
 enum qca_wlan_vendor_attr_roam_auth {
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_INVALID = 0,
+	/* Indicates BSSID of the roamed AP for non-MLO roaming and MLD address
+	 * of the roamed AP for MLO roaming.
+	 */
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_BSSID,
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REQ_IE,
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_RESP_IE,
@@ -2840,11 +2843,36 @@ enum qca_wlan_vendor_attr_roam_auth {
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_PMKID,
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_FILS_ERP_NEXT_SEQ_NUM,
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_REASON,
+	/* A nested attribute containing per-link information of all the links
+	 * of MLO connection done while roaming. The attributes used inside this
+	 * nested attribute are defined in enum qca_wlan_vendor_attr_mlo_links.
+	 */
+	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_MLO_LINKS = 15,
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AFTER_LAST,
 	QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_MAX =
 		QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_AFTER_LAST - 1
 };
 
+/**
+ * enum qca_wlan_vendor_attr_mlo_links - Definition of attributes used inside
+ * nested attribute QCA_WLAN_VENDOR_ATTR_ROAM_AUTH_MLO_LINKS.
+ *
+ * @QCA_WLAN_VENDOR_ATTR_MLO_LINK_ID: u8 attribute, link ID of this MLO link.
+ * @QCA_WLAN_VENDOR_ATTR_MLO_LINK_MAC_ADDR: Own MAC address of this MLO link.
+ * @QCA_WLAN_VENDOR_ATTR_MLO_LINK_BSSID: AP link MAC address of this MLO link.
+ */
+enum qca_wlan_vendor_attr_mlo_links {
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_INVALID = 0,
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_ID = 1,
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_MAC_ADDR = 2,
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_BSSID = 3,
+
+	/* Keep last */
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_AFTER_LAST,
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_MAX =
+	QCA_WLAN_VENDOR_ATTR_MLO_LINK_AFTER_LAST - 1,
+};
+
 /**
  * enum qca_wlan_vendor_attr_wifi_config - wifi config
  *