mac80211: support RX_FLAG_MACTIME_END

Allow drivers to indicate their mactime is at RX completion and adjust
for this in mac80211. Also rename the existing RX_FLAG_MACTIME_MPDU to
RX_FLAG_MACTIME_START to clarify its intent. Based on similar code by
Johannes Berg.

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
[fix docs, atheros drivers]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index a789dd1d4c10..b484a6569eac 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -711,10 +711,13 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  *      the frame.
  * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
  *      the frame.
- * @RX_FLAG_MACTIME_MPDU: The timestamp passed in the RX status (@mactime
+ * @RX_FLAG_MACTIME_START: The timestamp passed in the RX status (@mactime
  *      field) is valid and contains the time the first symbol of the MPDU
  *      was received. This is useful in monitor mode and for proper IBSS
  *      merging.
+ * @RX_FLAG_MACTIME_END: The timestamp passed in the RX status (@mactime
+ *      field) is valid and contains the time the last symbol of the MPDU
+ *      (including FCS) was received.
  * @RX_FLAG_SHORTPRE: Short preamble was used for this frame
  * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index
  * @RX_FLAG_40MHZ: HT40 (40 MHz) was used
@@ -745,7 +748,7 @@ enum mac80211_rx_flags {
         RX_FLAG_IV_STRIPPED             = BIT(4),
         RX_FLAG_FAILED_FCS_CRC          = BIT(5),
         RX_FLAG_FAILED_PLCP_CRC         = BIT(6),
-        RX_FLAG_MACTIME_MPDU            = BIT(7),
+        RX_FLAG_MACTIME_START           = BIT(7),
         RX_FLAG_SHORTPRE                = BIT(8),
         RX_FLAG_HT                      = BIT(9),
         RX_FLAG_40MHZ                   = BIT(10),
@@ -759,6 +762,7 @@ enum mac80211_rx_flags {
         RX_FLAG_AMPDU_IS_LAST           = BIT(18),
         RX_FLAG_AMPDU_DELIM_CRC_ERROR   = BIT(19),
         RX_FLAG_AMPDU_DELIM_CRC_KNOWN   = BIT(20),
+        RX_FLAG_MACTIME_END             = BIT(21),
 };
 
 /**