From: Johannes Berg <johannes.berg@xxxxxxxxx>
Since the firmware will give us an A-MPDU bit and
only a single PHY information packet for all the
subframes in an A-MPDU, we can easily report the
minimal A-MPDU information for radiotap.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
drivers/net/wireless/iwlwifi/dvm/commands.h | 1 +
drivers/net/wireless/iwlwifi/dvm/dev.h | 1 +
drivers/net/wireless/iwlwifi/dvm/rx.c | 11 +++++++++++
3 files changed, 13 insertions(+)
diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h
index 4a361c5..c5d4490 100644
--- a/drivers/net/wireless/iwlwifi/dvm/commands.h
+++ b/drivers/net/wireless/iwlwifi/dvm/commands.h
@@ -1055,6 +1055,7 @@ struct iwl_wep_cmd {
#define RX_RES_PHY_FLAGS_MOD_CCK_MSK cpu_to_le16(1 << 1)
#define RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK cpu_to_le16(1 << 2)
#define RX_RES_PHY_FLAGS_NARROW_BAND_MSK cpu_to_le16(1 << 3)
+#define RX_RES_PHY_FLAGS_AGG_MSK cpu_to_le16(1 << 7)
#define RX_RES_PHY_FLAGS_ANTENNA_MSK 0xf0
#define RX_RES_PHY_FLAGS_ANTENNA_POS 4
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index 054f728..8141f91 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -771,6 +771,7 @@ struct iwl_priv {
u8 agg_tids_count;
struct iwl_rx_phy_res last_phy_res;
+ u32 ampdu_ref;
bool last_phy_res_valid;
/*
diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c
index fee5cff..5a9c325 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/rx.c
@@ -667,6 +667,7 @@ static int iwlagn_rx_reply_rx_phy(struct iwl_priv *priv,
struct iwl_rx_packet *pkt = rxb_addr(rxb);
priv->last_phy_res_valid = true;
+ priv->ampdu_ref++;
memcpy(&priv->last_phy_res, pkt->data,
sizeof(struct iwl_rx_phy_res));
return 0;
@@ -981,6 +982,16 @@ static int iwlagn_rx_reply_rx(struct iwl_priv *priv,
if (phy_res->phy_flags & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK)
rx_status.flag |= RX_FLAG_SHORTPRE;
+ if (phy_res->phy_flags & RX_RES_PHY_FLAGS_AGG_MSK) {
+ /*
+ * We know which subframes of an A-MPDU belong
+ * together since we get a single PHY response
+ * from the firmware for all of them
+ */
+ rx_status.flag |= RX_FLAG_AMPDU_DETAILS;
+ rx_status.ampdu_reference = priv->ampdu_ref;
+ }
+
/* Set up the HT phy flags */
if (rate_n_flags & RATE_MCS_HT_MSK)
rx_status.flag |= RX_FLAG_HT;
--
1.7.10.4
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