ath9k: Add debug counters for TX
Location: ath9k/phy#/xmit
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 6eb2927..b7806e2 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -59,6 +59,7 @@
struct ath_atx_tid *tid,
struct list_head *bf_head);
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
+ struct ath_txq *txq,
struct list_head *bf_q,
int txok, int sendbar);
static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
@@ -212,7 +213,7 @@
ath_tx_update_baw(sc, tid, bf->bf_seqno);
spin_unlock(&txq->axq_lock);
- ath_tx_complete_buf(sc, bf, &bf_head, 0, 0);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, 0, 0);
spin_lock(&txq->axq_lock);
}
@@ -220,13 +221,15 @@
tid->baw_tail = tid->baw_head;
}
-static void ath_tx_set_retry(struct ath_softc *sc, struct ath_buf *bf)
+static void ath_tx_set_retry(struct ath_softc *sc, struct ath_txq *txq,
+ struct ath_buf *bf)
{
struct sk_buff *skb;
struct ieee80211_hdr *hdr;
bf->bf_state.bf_type |= BUF_RETRY;
bf->bf_retries++;
+ TX_STAT_INC(txq->axq_qnum, a_retries);
skb = bf->bf_mpdu;
hdr = (struct ieee80211_hdr *)skb->data;
@@ -328,7 +331,7 @@
if (!(tid->state & AGGR_CLEANUP) &&
ds->ds_txstat.ts_flags != ATH9K_TX_SW_ABORTED) {
if (bf->bf_retries < ATH_MAX_SW_RETRIES) {
- ath_tx_set_retry(sc, bf);
+ ath_tx_set_retry(sc, txq, bf);
txpending = 1;
} else {
bf->bf_state.bf_type |= BUF_XRETRY;
@@ -375,7 +378,7 @@
ath_tx_rc_status(bf, ds, nbad, txok, false);
}
- ath_tx_complete_buf(sc, bf, &bf_head, !txfail, sendbar);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, !txfail, sendbar);
} else {
/* retry the un-acked ones */
if (bf->bf_next == NULL && bf_last->bf_stale) {
@@ -395,8 +398,8 @@
bf->bf_state.bf_type |= BUF_XRETRY;
ath_tx_rc_status(bf, ds, nbad,
0, false);
- ath_tx_complete_buf(sc, bf, &bf_head,
- 0, 0);
+ ath_tx_complete_buf(sc, bf, txq,
+ &bf_head, 0, 0);
break;
}
@@ -569,6 +572,7 @@
}
static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
+ struct ath_txq *txq,
struct ath_atx_tid *tid,
struct list_head *bf_q)
{
@@ -633,6 +637,7 @@
bf_prev->bf_desc->ds_link = bf->bf_daddr;
}
bf_prev = bf;
+
} while (!list_empty(&tid->buf_q));
bf_first->bf_al = al;
@@ -655,7 +660,7 @@
INIT_LIST_HEAD(&bf_q);
- status = ath_tx_form_aggr(sc, tid, &bf_q);
+ status = ath_tx_form_aggr(sc, txq, tid, &bf_q);
/*
* no frames picked up to be aggregated;
@@ -686,6 +691,7 @@
txq->axq_aggr_depth++;
ath_tx_txqaddbuf(sc, txq, &bf_q);
+ TX_STAT_INC(txq->axq_qnum, a_aggr);
} while (txq->axq_depth < ATH_AGGR_MIN_QDEPTH &&
status != ATH_AGGR_BAW_CLOSED);
@@ -737,7 +743,7 @@
}
list_move_tail(&bf->list, &bf_head);
ath_tx_update_baw(sc, txtid, bf->bf_seqno);
- ath_tx_complete_buf(sc, bf, &bf_head, 0, 0);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, 0, 0);
}
spin_unlock_bh(&txq->axq_lock);
@@ -859,7 +865,6 @@
spin_lock_init(&txq->axq_lock);
txq->axq_depth = 0;
txq->axq_aggr_depth = 0;
- txq->axq_totalqueued = 0;
txq->axq_linkbuf = NULL;
txq->axq_tx_inprogress = false;
sc->tx.txqsetup |= 1<<qnum;
@@ -1025,7 +1030,7 @@
if (bf_isampdu(bf))
ath_tx_complete_aggr(sc, txq, bf, &bf_head, 0);
else
- ath_tx_complete_buf(sc, bf, &bf_head, 0, 0);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, 0, 0);
}
spin_lock_bh(&txq->axq_lock);
@@ -1176,7 +1181,6 @@
list_splice_tail_init(head, &txq->axq_q);
txq->axq_depth++;
- txq->axq_totalqueued++;
txq->axq_linkbuf = list_entry(txq->axq_q.prev, struct ath_buf, list);
DPRINTF(sc, ATH_DBG_QUEUE,
@@ -1224,6 +1228,7 @@
bf = list_first_entry(bf_head, struct ath_buf, list);
bf->bf_state.bf_type |= BUF_AMPDU;
+ TX_STAT_INC(txctl->txq->axq_qnum, a_queued);
/*
* Do not queue to h/w when any of the following conditions is true:
@@ -1270,6 +1275,7 @@
bf->bf_lastbf = bf;
ath_buf_set_rate(sc, bf);
ath_tx_txqaddbuf(sc, txq, bf_head);
+ TX_STAT_INC(txq->axq_qnum, queued);
}
static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
@@ -1283,6 +1289,7 @@
bf->bf_nframes = 1;
ath_buf_set_rate(sc, bf);
ath_tx_txqaddbuf(sc, txq, bf_head);
+ TX_STAT_INC(txq->axq_qnum, queued);
}
static enum ath9k_pkt_type get_hw_packet_type(struct sk_buff *skb)
@@ -1808,6 +1815,7 @@
}
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
+ struct ath_txq *txq,
struct list_head *bf_q,
int txok, int sendbar)
{
@@ -1815,7 +1823,6 @@
unsigned long flags;
int tx_flags = 0;
-
if (sendbar)
tx_flags = ATH_TX_BAR;
@@ -1828,6 +1835,7 @@
dma_unmap_single(sc->dev, bf->bf_dmacontext, skb->len, DMA_TO_DEVICE);
ath_tx_complete(sc, skb, tx_flags);
+ ath_debug_stat_tx(sc, txq, bf);
/*
* Return the list of ath_buf of this mpdu to free queue
@@ -2015,7 +2023,7 @@
if (bf_isampdu(bf))
ath_tx_complete_aggr(sc, txq, bf, &bf_head, txok);
else
- ath_tx_complete_buf(sc, bf, &bf_head, txok, 0);
+ ath_tx_complete_buf(sc, bf, txq, &bf_head, txok, 0);
ath_wake_mac80211_queue(sc, txq);