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yaml
---
r: 224607
b: refs/heads/master
c: 76e4522
h: refs/heads/master
i:
  224605: f6f4b27
  224603: 0f70933
  224599: a1c96bd
  224591: b3e8bb2
  224575: 83edc26
v: v3
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Felix Fietkau authored and John W. Linville committed Nov 17, 2010
1 parent bd6021a commit a71d877
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Showing 3 changed files with 39 additions and 28 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: b572d0335fcb26e526f6ae087a9a09371b22e739
refs/heads/master: 76e4522177de81ac89ade01a394aeb3704a66f1b
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_frmlen bf_state.bfs_frmlen
#define bf_retries bf_state.bfs_retries
#define bf_isht(bf) (bf->bf_state.bf_type & BUF_HT)
#define bf_isampdu(bf) (bf->bf_state.bf_type & BUF_AMPDU)
Expand Down Expand Up @@ -215,7 +214,6 @@ struct ath_buf_state {
int bfs_retries;
u8 bf_type;
u8 bfs_paprd;
u16 bfs_frmlen;
enum ath9k_internal_frame_type bfs_ftype;
};

Expand Down
63 changes: 38 additions & 25 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 @@ -50,7 +50,7 @@ static u16 bits_per_symbol[][2] = {

static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid,
struct list_head *bf_head);
struct list_head *bf_head, int frmlen);
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
struct ath_txq *txq, struct list_head *bf_q,
struct ath_tx_status *ts, int txok, int sendbar);
Expand Down Expand Up @@ -144,6 +144,26 @@ static u16 ath_frame_seqno(struct sk_buff *skb)
return le16_to_cpu(hdr->seq_ctrl) >> IEEE80211_SEQ_SEQ_SHIFT;
}

static int ath_frame_len(struct sk_buff *skb)
{
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int frmlen = skb->len + FCS_LEN;
int padpos, padsize;

/* Remove the padding size, if any */
padpos = ath9k_cmn_padpos(hdr->frame_control);
padsize = padpos & 3;

if (padsize && skb->len > padpos + padsize)
frmlen -= padsize;

if (tx_info->control.hw_key)
frmlen += tx_info->control.hw_key->icv_len;

return frmlen;
}

static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
{
struct ath_txq *txq = tid->ac->txq;
Expand All @@ -164,7 +184,8 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
ath_tx_update_baw(sc, tid, ath_frame_seqno(bf->bf_mpdu));
ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 0);
} else {
ath_tx_send_normal(sc, txq, tid, &bf_head);
ath_tx_send_normal(sc, txq, tid, &bf_head,
ath_frame_len(bf->bf_mpdu));
}
}

Expand Down Expand Up @@ -713,6 +734,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
al_delta, h_baw = tid->baw_size / 2;
enum ATH_AGGR_STATUS status = ATH_AGGR_DONE;
struct ieee80211_tx_info *tx_info;
int frmlen;
u16 bf_seqno;

bf_first = list_first_entry(&tid->buf_q, struct ath_buf, list);
Expand All @@ -733,7 +755,8 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
}

/* do not exceed aggregation limit */
al_delta = ATH_AGGR_DELIM_SZ + bf->bf_frmlen;
frmlen = ath_frame_len(bf->bf_mpdu);
al_delta = ATH_AGGR_DELIM_SZ + frmlen;

if (nframes &&
(aggr_limit < (al + bpad + al_delta + prev_al))) {
Expand All @@ -760,7 +783,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
* Get the delimiters needed to meet the MPDU
* density for this node.
*/
ndelim = ath_compute_num_delims(sc, tid, bf_first, bf->bf_frmlen);
ndelim = ath_compute_num_delims(sc, tid, bf_first, frmlen);
bpad = PADBYTES(al_delta) + (ndelim << 2);

bf->bf_next = NULL;
Expand Down Expand Up @@ -816,7 +839,7 @@ static void ath_tx_sched_aggr(struct ath_softc *sc, struct ath_txq *txq,
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);
ath_buf_set_rate(sc, bf, ath_frame_len(bf->bf_mpdu));
ath_tx_txqaddbuf(sc, txq, &bf_q);
continue;
}
Expand Down Expand Up @@ -1327,7 +1350,7 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,

static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
struct list_head *bf_head,
struct ath_tx_control *txctl)
struct ath_tx_control *txctl, int frmlen)
{
struct ath_buf *bf;
u16 bf_seqno;
Expand Down Expand Up @@ -1362,13 +1385,13 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,

/* Queue to h/w without aggregation */
bf->bf_lastbf = bf;
ath_buf_set_rate(sc, bf, bf->bf_frmlen);
ath_buf_set_rate(sc, bf, frmlen);
ath_tx_txqaddbuf(sc, txctl->txq, bf_head);
}

static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
struct ath_atx_tid *tid,
struct list_head *bf_head)
struct list_head *bf_head, int frmlen)
{
struct ath_buf *bf;

Expand All @@ -1380,7 +1403,7 @@ static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
INCR(tid->seq_start, IEEE80211_SEQ_MAX);

bf->bf_lastbf = bf;
ath_buf_set_rate(sc, bf, bf->bf_frmlen);
ath_buf_set_rate(sc, bf, frmlen);
ath_tx_txqaddbuf(sc, txq, bf_head);
TX_STAT_INC(txq->axq_qnum, queued);
}
Expand Down Expand Up @@ -1595,12 +1618,10 @@ static struct ath_buf *ath_tx_setup_buffer(struct ieee80211_hw *hw,
struct ath_wiphy *aphy = hw->priv;
struct ath_softc *sc = aphy->sc;
struct ath_common *common = ath9k_hw_common(sc->sc_ah);
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ath_buf *bf;
int hdrlen;
__le16 fc;
int padpos, padsize;

bf = ath_tx_get_buffer(sc);
if (!bf) {
Expand All @@ -1614,13 +1635,6 @@ static struct ath_buf *ath_tx_setup_buffer(struct ieee80211_hw *hw,
ATH_TXBUF_RESET(bf);

bf->aphy = aphy;
bf->bf_frmlen = skb->len + FCS_LEN;
/* Remove the padding size from bf_frmlen, if any */
padpos = ath9k_cmn_padpos(hdr->frame_control);
padsize = padpos & 3;
if (padsize && skb->len>padpos+padsize) {
bf->bf_frmlen -= padsize;
}

if (ieee80211_is_data_qos(fc) && conf_is_ht(&hw->conf)) {
bf->bf_state.bf_type |= BUF_HT;
Expand All @@ -1630,9 +1644,6 @@ static struct ath_buf *ath_tx_setup_buffer(struct ieee80211_hw *hw,

bf->bf_flags = setup_tx_flags(skb);

if (tx_info->control.hw_key)
bf->bf_frmlen += tx_info->control.hw_key->icv_len;

bf->bf_mpdu = skb;

bf->bf_buf_addr = dma_map_single(sc->dev, skb->data,
Expand Down Expand Up @@ -1668,6 +1679,7 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
int frm_type;
__le16 fc;
u8 tidno;
int frmlen;

frm_type = get_hw_packet_type(skb);
fc = hdr->frame_control;
Expand All @@ -1684,7 +1696,8 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
else
keyix = ATH9K_TXKEYIX_INVALID;

ath9k_hw_set11n_txdesc(ah, ds, bf->bf_frmlen, frm_type, MAX_RATE_POWER,
frmlen = ath_frame_len(bf->bf_mpdu);
ath9k_hw_set11n_txdesc(ah, ds, frmlen, frm_type, MAX_RATE_POWER,
keyix, keytype, bf->bf_flags);

ath9k_hw_filltxdesc(ah, ds,
Expand All @@ -1711,13 +1724,13 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
* Try aggregation if it's a unicast data frame
* and the destination is HT capable.
*/
ath_tx_send_ampdu(sc, tid, &bf_head, txctl);
ath_tx_send_ampdu(sc, tid, &bf_head, txctl, frmlen);
} else {
/*
* Send this frame as regular when ADDBA
* exchange is neither complete nor pending.
*/
ath_tx_send_normal(sc, txctl->txq, tid, &bf_head);
ath_tx_send_normal(sc, txctl->txq, tid, &bf_head, frmlen);
}
} else {
bf->bf_state.bfs_ftype = txctl->frame_type;
Expand All @@ -1726,7 +1739,7 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
if (bf->bf_state.bfs_paprd)
ar9003_hw_set_paprd_txdesc(ah, ds, bf->bf_state.bfs_paprd);

ath_tx_send_normal(sc, txctl->txq, NULL, &bf_head);
ath_tx_send_normal(sc, txctl->txq, NULL, &bf_head, frmlen);
}

spin_unlock_bh(&txctl->txq->axq_lock);
Expand Down

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