diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index afa8e0a..d9724a2 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1266,6 +1266,8 @@
 
 #define WLAN_MAX_KEY_LEN		32
 
+#define WLAN_PMKID_LEN			16
+
 /**
  * ieee80211_get_qos_ctl - get pointer to qos control bytes
  * @hdr: the frame
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 45db17f..da8ea2e 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -349,6 +349,10 @@
 	NL80211_CMD_GET_SURVEY,
 	NL80211_CMD_NEW_SURVEY_RESULTS,
 
+	NL80211_CMD_SET_PMKSA,
+	NL80211_CMD_DEL_PMKSA,
+	NL80211_CMD_FLUSH_PMKSA,
+
 	/* add new commands above here */
 
 	/* used to define NL80211_CMD_MAX below */
@@ -598,6 +602,10 @@
  *      the survey response for %NL80211_CMD_GET_SURVEY, nested attribute
  *      containing info as possible, see &enum survey_info.
  *
+ * @NL80211_ATTR_PMKID: PMK material for PMKSA caching.
+ * @NL80211_ATTR_MAX_NUM_PMKIDS: maximum number of PMKIDs a firmware can
+ *	cache, a wiphy attribute.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -732,6 +740,9 @@
 
 	NL80211_ATTR_SURVEY_INFO,
 
+	NL80211_ATTR_PMKID,
+	NL80211_ATTR_MAX_NUM_PMKIDS,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a6492e9..0884b9a 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -871,6 +871,19 @@
 	u32 fixed;   /* fixed bitrate, 0 == not fixed */
 	u32 maxrate; /* in kbps, 0 == no limit */
 };
+/**
+ * struct cfg80211_pmksa - PMK Security Association
+ *
+ * This structure is passed to the set/del_pmksa() method for PMKSA
+ * caching.
+ *
+ * @bssid: The AP's BSSID.
+ * @pmkid: The PMK material itself.
+ */
+struct cfg80211_pmksa {
+	u8 *bssid;
+	u8 *pmkid;
+};
 
 /**
  * struct cfg80211_ops - backend description for wireless configuration
@@ -976,6 +989,13 @@
  * @dump_survey: get site survey information.
  *
  * @testmode_cmd: run a test mode command
+ *
+ * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
+ *	devices running firmwares capable of generating the (re) association
+ *	RSN IE. It allows for faster roaming between WPA2 BSSIDs.
+ * @del_pmksa: Delete a cached PMKID.
+ * @flush_pmksa: Flush all cached PMKIDs.
+ *
  */
 struct cfg80211_ops {
 	int	(*suspend)(struct wiphy *wiphy);
@@ -1097,6 +1117,12 @@
 	int	(*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
 			int idx, struct survey_info *info);
 
+	int	(*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
+			     struct cfg80211_pmksa *pmksa);
+	int	(*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
+			     struct cfg80211_pmksa *pmksa);
+	int	(*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
+
 	/* some temporary stuff to finish wext */
 	int	(*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
 				  bool enabled, int timeout);
@@ -1195,6 +1221,8 @@
 	char fw_version[ETHTOOL_BUSINFO_LEN];
 	u32 hw_version;
 
+	u8 max_num_pmkids;
+
 	/* If multiple wiphys are registered and you're handed e.g.
 	 * a regular netdev with assigned ieee80211_ptr, you won't
 	 * know whether it points to a wiphy your driver has registered