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yaml
---
r: 224606
b: refs/heads/master
c: b572d03
h: refs/heads/master
v: v3
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Felix Fietkau authored and John W. Linville committed Nov 17, 2010
1 parent f6f4b27 commit bd6021a
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Showing 3 changed files with 48 additions and 53 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 269c44bc8415ad78fb4dc3de25e6de3420332e9f
refs/heads/master: b572d0335fcb26e526f6ae087a9a09371b22e739
2 changes: 0 additions & 2 deletions trunk/drivers/net/wireless/ath/ath9k/ath9k.h
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Original file line number Diff line number Diff line change
Expand Up @@ -101,7 +101,6 @@ enum buffer_type {
BUF_XRETRY = BIT(5),
};

#define bf_nframes bf_state.bfs_nframes
#define bf_frmlen bf_state.bfs_frmlen
#define bf_retries bf_state.bfs_retries
#define bf_isht(bf) (bf->bf_state.bf_type & BUF_HT)
Expand Down Expand Up @@ -213,7 +212,6 @@ struct ath_atx_ac {
};

struct ath_buf_state {
int bfs_nframes;
int bfs_retries;
u8 bf_type;
u8 bfs_paprd;
Expand Down
97 changes: 47 additions & 50 deletions trunk/drivers/net/wireless/ath/ath9k/xmit.c
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Original file line number Diff line number Diff line change
Expand Up @@ -57,10 +57,8 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
struct list_head *head);
static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, int len);
static int ath_tx_num_badfrms(struct ath_softc *sc, struct ath_buf *bf,
struct ath_tx_status *ts, int txok);
static void ath_tx_rc_status(struct ath_buf *bf, struct ath_tx_status *ts,
int nbad, int txok, bool update_rc);
int nframes, int nbad, int txok, bool update_rc);
static void ath_tx_update_baw(struct ath_softc *sc, struct ath_atx_tid *tid,
int seqno);

Expand Down Expand Up @@ -303,6 +301,39 @@ static struct ath_buf* ath_clone_txbuf(struct ath_softc *sc, struct ath_buf *bf)
return tbf;
}

static void ath_tx_count_frames(struct ath_softc *sc, struct ath_buf *bf,
struct ath_tx_status *ts, int txok,
int *nframes, int *nbad)
{
u16 seq_st = 0;
u32 ba[WME_BA_BMP_SIZE >> 5];
int ba_index;
int isaggr = 0;

*nbad = 0;
*nframes = 0;

if (bf->bf_lastbf->bf_tx_aborted)
return;

isaggr = bf_isaggr(bf);
if (isaggr) {
seq_st = ts->ts_seqnum;
memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3);
}

while (bf) {
ba_index = ATH_BA_INDEX(seq_st, ath_frame_seqno(bf->bf_mpdu));

(*nframes)++;
if (!txok || (isaggr && !ATH_BA_ISSET(ba, ba_index)))
(*nbad)++;

bf = bf->bf_next;
}
}


static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
struct ath_buf *bf, struct list_head *bf_q,
struct ath_tx_status *ts, int txok)
Expand Down Expand Up @@ -332,7 +363,6 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
hw = bf->aphy->hw;

memcpy(rates, tx_info->control.rates, sizeof(rates));
nframes = bf->bf_nframes;

rcu_read_lock();

Expand All @@ -349,7 +379,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
!bf->bf_stale || bf_next != NULL)
list_move_tail(&bf->list, &bf_head);

ath_tx_rc_status(bf, ts, 1, 0, false);
ath_tx_rc_status(bf, ts, 1, 1, 0, false);
ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
0, 0);

Expand Down Expand Up @@ -393,7 +423,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
INIT_LIST_HEAD(&bf_pending);
INIT_LIST_HEAD(&bf_head);

nbad = ath_tx_num_badfrms(sc, bf, ts, txok);
ath_tx_count_frames(sc, bf, ts, txok, &nframes, &nbad);
while (bf) {
txfail = txpending = 0;
bf_next = bf->bf_next;
Expand Down Expand Up @@ -456,11 +486,10 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,

if (rc_update && (acked_cnt == 1 || txfail_cnt == 1)) {
memcpy(tx_info->control.rates, rates, sizeof(rates));
bf->bf_nframes = nframes;
ath_tx_rc_status(bf, ts, nbad, txok, true);
ath_tx_rc_status(bf, ts, nframes, nbad, txok, true);
rc_update = false;
} else {
ath_tx_rc_status(bf, ts, nbad, txok, false);
ath_tx_rc_status(bf, ts, nframes, nbad, txok, false);
}

ath_tx_complete_buf(sc, bf, txq, &bf_head, ts,
Expand All @@ -485,8 +514,8 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,

bf->bf_state.bf_type |=
BUF_XRETRY;
ath_tx_rc_status(bf, ts, nbad,
0, false);
ath_tx_rc_status(bf, ts, nframes,
nbad, 0, false);
ath_tx_complete_buf(sc, bf, txq,
&bf_head,
ts, 0, 0);
Expand Down Expand Up @@ -752,7 +781,6 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
} while (!list_empty(&tid->buf_q));

*aggr_len = al;
bf_first->bf_nframes = nframes;

return status;
#undef PADBYTES
Expand Down Expand Up @@ -785,7 +813,7 @@ static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
bf->bf_lastbf = list_entry(bf_q.prev, struct ath_buf, list);

/* if only one frame, send as non-aggregate */
if (bf->bf_nframes == 1) {
if (bf == bf->bf_lastbf) {
bf->bf_state.bf_type &= ~BUF_AGGR;
ath9k_hw_clr11n_aggr(sc->sc_ah, bf->bf_desc);
ath_buf_set_rate(sc, bf, bf->bf_frmlen);
Expand Down Expand Up @@ -1333,7 +1361,6 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
ath_tx_addto_baw(sc, tid, bf_seqno);

/* Queue to h/w without aggregation */
bf->bf_nframes = 1;
bf->bf_lastbf = bf;
ath_buf_set_rate(sc, bf, bf->bf_frmlen);
ath_tx_txqaddbuf(sc, txctl->txq, bf_head);
Expand All @@ -1352,7 +1379,6 @@ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
if (tid)
INCR(tid->seq_start, IEEE80211_SEQ_MAX);

bf->bf_nframes = 1;
bf->bf_lastbf = bf;
ath_buf_set_rate(sc, bf, bf->bf_frmlen);
ath_tx_txqaddbuf(sc, txq, bf_head);
Expand Down Expand Up @@ -1895,37 +1921,8 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
spin_unlock_irqrestore(&sc->tx.txbuflock, flags);
}

static int ath_tx_num_badfrms(struct ath_softc *sc, struct ath_buf *bf,
struct ath_tx_status *ts, int txok)
{
u16 seq_st = 0;
u32 ba[WME_BA_BMP_SIZE >> 5];
int ba_index;
int nbad = 0;
int isaggr = 0;

if (bf->bf_lastbf->bf_tx_aborted)
return 0;

isaggr = bf_isaggr(bf);
if (isaggr) {
seq_st = ts->ts_seqnum;
memcpy(ba, &ts->ba_low, WME_BA_BMP_SIZE >> 3);
}

while (bf) {
ba_index = ATH_BA_INDEX(seq_st, ath_frame_seqno(bf->bf_mpdu));
if (!txok || (isaggr && !ATH_BA_ISSET(ba, ba_index)))
nbad++;

bf = bf->bf_next;
}

return nbad;
}

static void ath_tx_rc_status(struct ath_buf *bf, struct ath_tx_status *ts,
int nbad, int txok, bool update_rc)
int nframes, int nbad, int txok, bool update_rc)
{
struct sk_buff *skb = bf->bf_mpdu;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
Expand All @@ -1946,10 +1943,10 @@ static void ath_tx_rc_status(struct ath_buf *bf, struct ath_tx_status *ts,
if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && update_rc) {
tx_info->flags |= IEEE80211_TX_STAT_AMPDU;

BUG_ON(nbad > bf->bf_nframes);
BUG_ON(nbad > nframes);

tx_info->status.ampdu_len = bf->bf_nframes;
tx_info->status.ampdu_ack_len = bf->bf_nframes - nbad;
tx_info->status.ampdu_len = nframes;
tx_info->status.ampdu_ack_len = nframes - nbad;
}

if ((ts->ts_status & ATH9K_TXERR_FILT) == 0 &&
Expand Down Expand Up @@ -2078,7 +2075,7 @@ static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
*/
if (ts.ts_status & ATH9K_TXERR_XRETRY)
bf->bf_state.bf_type |= BUF_XRETRY;
ath_tx_rc_status(bf, &ts, txok ? 0 : 1, txok, true);
ath_tx_rc_status(bf, &ts, 1, txok ? 0 : 1, txok, true);
}

qnum = skb_get_queue_mapping(bf->bf_mpdu);
Expand Down Expand Up @@ -2200,7 +2197,7 @@ void ath_tx_edma_tasklet(struct ath_softc *sc)
if (!bf_isampdu(bf)) {
if (txs.ts_status & ATH9K_TXERR_XRETRY)
bf->bf_state.bf_type |= BUF_XRETRY;
ath_tx_rc_status(bf, &txs, txok ? 0 : 1, txok, true);
ath_tx_rc_status(bf, &txs, 1, txok ? 0 : 1, txok, true);
}

qnum = skb_get_queue_mapping(bf->bf_mpdu);
Expand Down

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