ath9k: add duration field to ath_tx_status

Add duration field to ath_tx_status in order to report frame duration for each
entry in multi-retry chain. These fields will be used in ACK timeout estimation
algorithm (dynack)

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_mac.c b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
index 59af9f9..669cb37 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
@@ -381,6 +381,13 @@ static int ar9002_hw_proc_txdesc(struct ath_hw *ah, void *ds,
        ts->evm1 = ads->AR_TxEVM1;
        ts->evm2 = ads->AR_TxEVM2;
 
+       status = ACCESS_ONCE(ads->ds_ctl4);
+       ts->duration[0] = MS(status, AR_PacketDur0);
+       ts->duration[1] = MS(status, AR_PacketDur1);
+       status = ACCESS_ONCE(ads->ds_ctl5);
+       ts->duration[2] = MS(status, AR_PacketDur2);
+       ts->duration[3] = MS(status, AR_PacketDur3);
+
        return 0;
 }
 

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mac.c b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
index 71e38e8..e5f7c11 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
@@ -355,9 +355,11 @@ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
                                 struct ath_tx_status *ts)
 {
        struct ar9003_txs *ads;
+       struct ar9003_txc *adc;
        u32 status;
 
        ads = &ah->ts_ring[ah->ts_tail];
+       adc = (struct ar9003_txc *)ads;
 
        status = ACCESS_ONCE(ads->status8);
        if ((status & AR_TxDone) == 0)
@@ -426,6 +428,13 @@ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
        ts->ts_rssi_ext1 = MS(status, AR_TxRSSIAnt11);
        ts->ts_rssi_ext2 = MS(status, AR_TxRSSIAnt12);
 
+       status = ACCESS_ONCE(adc->ctl15);
+       ts->duration[0] = MS(status, AR_PacketDur0);
+       ts->duration[1] = MS(status, AR_PacketDur1);
+       status = ACCESS_ONCE(adc->ctl16);
+       ts->duration[2] = MS(status, AR_PacketDur2);
+       ts->duration[3] = MS(status, AR_PacketDur3);
+
        memset(ads, 0, sizeof(*ads));
 
        return 0;

diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 6c56caf..cd05a77 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -121,6 +121,7 @@ struct ath_tx_status {
        u32 evm0;
        u32 evm1;
        u32 evm2;
+       u32 duration[4];
 };
 
 struct ath_rx_status {