iwlagn: add feature flags

Some new devices and microcode files will a greater
variety of features, so the TLV-per-feature approach
we took before will quickly make things harder to
manage and increase the file size.

Add a new TLV that has feature flags. Currently, it
will contain:
 1) a PAN feature flag, which moves from a separate
    TLV
 2) a new BT stats bit that indicates whether the
    microcode image uses bluetooth statistics
 3) a new MFP flag for management frame protection
    which can be enabled once the device/microcode
    supports it

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 0696e7f..2f7458d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -535,6 +535,22 @@
 	IWL_UCODE_TLV_INIT_ERRLOG_PTR	= 13,
 	IWL_UCODE_TLV_ENHANCE_SENS_TBL	= 14,
 	IWL_UCODE_TLV_PHY_CALIBRATION_SIZE = 15,
+	/* 16 and 17 reserved for future use */
+	IWL_UCODE_TLV_FLAGS		= 18,
+};
+
+/**
+ * enum iwl_ucode_tlv_flag - ucode API flags
+ * @IWL_UCODE_TLV_FLAGS_PAN: This is PAN capable microcode; this previously
+ *	was a separate TLV but moved here to save space.
+ * @IWL_UCODE_TLV_FLAGS_BTSTATS: This uCode image uses BT statistics, which
+ *	may be true even if the device doesn't have BT.
+ * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w).
+ */
+enum iwl_ucode_tlv_flag {
+	IWL_UCODE_TLV_FLAGS_PAN		= BIT(0),
+	IWL_UCODE_TLV_FLAGS_BTSTATS	= BIT(1),
+	IWL_UCODE_TLV_FLAGS_MFP		= BIT(2),
 };
 
 struct iwl_ucode_tlv {
@@ -1410,6 +1426,7 @@
 	bool bt_ch_announce;
 	bool bt_full_concurrent;
 	bool bt_ant_couple_ok;
+	bool bt_statistics;
 	__le32 kill_ack_mask;
 	__le32 kill_cts_mask;
 	__le16 bt_valid;