mac80211: support reporting A-MPDU EOF bit value/known

Support getting the EOF bit value reported from hardware
and writing it out to radiotap.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>

include/net/ieee80211_radiotap.h

@@ -149,6 +149,8 @@ enum ieee80211_radiotap_ampdu_flags {
 	IEEE80211_RADIOTAP_AMPDU_IS_LAST = 0x0008,
 	IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR = 0x0010,
 	IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN = 0x0020,
+	IEEE80211_RADIOTAP_AMPDU_EOF = 0x0040,
+	IEEE80211_RADIOTAP_AMPDU_EOF_KNOWN = 0x0080,
 };
 
 /* for IEEE80211_RADIOTAP_VHT */

include/net/mac80211.h

@@ -1099,6 +1099,9 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  *	the first subframe.
  * @RX_FLAG_ICV_STRIPPED: The ICV is stripped from this frame. CRC checking must
  *	be done in the hardware.
+ * @RX_FLAG_AMPDU_EOF_BIT: Value of the EOF bit in the A-MPDU delimiter for this
+ *	frame
+ * @RX_FLAG_AMPDU_EOF_BIT_KNOWN: The EOF value is known
  */
 enum mac80211_rx_flags {
 	RX_FLAG_MMIC_ERROR		= BIT(0),
@@ -1125,6 +1128,8 @@ enum mac80211_rx_flags {
 	RX_FLAG_MIC_STRIPPED		= BIT(21),
 	RX_FLAG_ALLOW_SAME_PN		= BIT(22),
 	RX_FLAG_ICV_STRIPPED		= BIT(23),
+	RX_FLAG_AMPDU_EOF_BIT		= BIT(24),
+	RX_FLAG_AMPDU_EOF_BIT_KNOWN	= BIT(25),
 };
 
 /**

net/mac80211/rx.c

@@ -439,6 +439,10 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
 			flags |= IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR;
 		if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_KNOWN)
 			flags |= IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN;
+		if (status->flag & RX_FLAG_AMPDU_EOF_BIT_KNOWN)
+			flags |= IEEE80211_RADIOTAP_AMPDU_EOF_KNOWN;
+		if (status->flag & RX_FLAG_AMPDU_EOF_BIT)
+			flags |= IEEE80211_RADIOTAP_AMPDU_EOF;
 		put_unaligned_le16(flags, pos);
 		pos += 2;
 		if (status->flag & RX_FLAG_AMPDU_DELIM_CRC_KNOWN)