Because the hardware reports whenever an frame
was either at the start, in the middle or at
the end of a A-MPDU, we can easily report the
information for radiotap.
Signed-off-by: Christian Lamparter <chunkeey@xxxxxxxxxxxxxx>
---
drivers/net/wireless/ath/carl9170/carl9170.h | 1 +
drivers/net/wireless/ath/carl9170/rx.c | 15 +++++++++++----
2 files changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/ath/carl9170/carl9170.h b/drivers/net/wireless/ath/carl9170/carl9170.h
index 376be11..58b73a0 100644
--- a/drivers/net/wireless/ath/carl9170/carl9170.h
+++ b/drivers/net/wireless/ath/carl9170/carl9170.h
@@ -425,6 +425,7 @@ struct ar9170 {
bool rx_has_plcp;
struct sk_buff *rx_failover;
int rx_failover_missing;
+ u32 ampdu_ref;
/* FIFO for collecting outstanding BlockAckRequest */
struct list_head bar_list[__AR9170_NUM_TXQ];
diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c
index 25910a1..a57e44e 100644
--- a/drivers/net/wireless/ath/carl9170/rx.c
+++ b/drivers/net/wireless/ath/carl9170/rx.c
@@ -623,7 +623,8 @@ static void carl9170_ba_check(struct ar9170 *ar, void *data, unsigned int len)
#undef TID_CHECK
}
-static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms)
+static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms,
+ struct ieee80211_rx_status *rx_status)
{
__le16 fc;
@@ -636,6 +637,9 @@ static bool carl9170_ampdu_check(struct ar9170 *ar, u8 *buf, u8 ms)
return true;
}
+ rx_status->flag |= RX_FLAG_AMPDU_DETAILS | RX_FLAG_AMPDU_LAST_KNOWN;
+ rx_status->ampdu_reference = ar->ampdu_ref;
+
/*
* "802.11n - 7.4a.3 A-MPDU contents" describes in which contexts
* certain frame types can be part of an aMPDU.
@@ -684,12 +688,15 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
if (unlikely(len < sizeof(*mac)))
goto drop;
+ memset(&status, 0, sizeof(status));
+
mpdu_len = len - sizeof(*mac);
mac = (void *)(buf + mpdu_len);
mac_status = mac->status;
switch (mac_status & AR9170_RX_STATUS_MPDU) {
case AR9170_RX_STATUS_MPDU_FIRST:
+ ar->ampdu_ref++;
/* Aggregated MPDUs start with an PLCP header */
if (likely(mpdu_len >= sizeof(struct ar9170_rx_head))) {
head = (void *) buf;
@@ -720,12 +727,13 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
break;
case AR9170_RX_STATUS_MPDU_LAST:
+ status.flag |= RX_FLAG_AMPDU_IS_LAST;
+
/*
* The last frame of an A-MPDU has an extra tail
* which does contain the phy status of the whole
* aggregate.
*/
-
if (likely(mpdu_len >= sizeof(struct ar9170_rx_phystatus))) {
mpdu_len -= sizeof(struct ar9170_rx_phystatus);
phy = (void *)(buf + mpdu_len);
@@ -773,11 +781,10 @@ static void carl9170_handle_mpdu(struct ar9170 *ar, u8 *buf, int len)
if (unlikely(mpdu_len < (2 + 2 + ETH_ALEN + FCS_LEN)))
goto drop;
- memset(&status, 0, sizeof(status));
if (unlikely(carl9170_rx_mac_status(ar, head, mac, &status)))
goto drop;
- if (!carl9170_ampdu_check(ar, buf, mac_status))
+ if (!carl9170_ampdu_check(ar, buf, mac_status, &status))
goto drop;
if (phy)
--
1.7.10.4
--
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