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ath9k: add support for the new rate control API

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Felix Fietkau 2013-04-22 23:11:44 +02:00 committed by John W. Linville
parent bdc21457ac
commit 79acac0708
3 changed files with 19 additions and 8 deletions
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1
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -234,6 +234,7 @@ struct ath_buf {
dma_addr_t bf_daddr; /* physical addr of desc */
dma_addr_t bf_buf_addr; /* physical addr of data buffer, for DMA */
bool bf_stale;
struct ieee80211_tx_rate rates[4];
struct ath_buf_state bf_state;
};

3
drivers/net/wireless/ath/ath9k/init.c
View File

@ -766,7 +766,8 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
IEEE80211_HW_SUPPORTS_PS |
IEEE80211_HW_PS_NULLFUNC_STACK |
IEEE80211_HW_SPECTRUM_MGMT |
IEEE80211_HW_REPORTS_TX_ACK_STATUS;
IEEE80211_HW_REPORTS_TX_ACK_STATUS |
IEEE80211_HW_SUPPORTS_RC_TABLE;
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;

23
drivers/net/wireless/ath/ath9k/xmit.c
View File

@ -157,6 +157,13 @@ static void ath_send_bar(struct ath_atx_tid *tid, u16 seqno)
seqno << IEEE80211_SEQ_SEQ_SHIFT);
}
static void ath_set_rates(struct ieee80211_vif *vif, struct ieee80211_sta *sta,
struct ath_buf *bf)
{
ieee80211_get_tx_rates(vif, sta, bf->bf_mpdu, bf->rates,
ARRAY_SIZE(bf->rates));
}
static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
{
struct ath_txq *txq = tid->ac->txq;
@ -189,6 +196,7 @@ static void ath_tx_flush_tid(struct ath_softc *sc, struct ath_atx_tid *tid)
ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0);
sendbar = true;
} else {
ath_set_rates(tid->an->vif, tid->an->sta, bf);
ath_tx_send_normal(sc, txq, NULL, skb);
}
}
@ -407,7 +415,7 @@ static void ath_tx_complete_aggr(struct ath_softc *sc, struct ath_txq *txq,
tx_info = IEEE80211_SKB_CB(skb);
memcpy(rates, tx_info->control.rates, sizeof(rates));
memcpy(rates, bf->rates, sizeof(rates));
retries = ts->ts_longretry + 1;
for (i = 0; i < ts->ts_rateindex; i++)
@ -736,8 +744,6 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
bool first_subfrm)
{
#define FIRST_DESC_NDELIMS 60
struct sk_buff *skb = bf->bf_mpdu;
struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
u32 nsymbits, nsymbols;
u16 minlen;
u8 flags, rix;
@ -778,8 +784,8 @@ static int ath_compute_num_delims(struct ath_softc *sc, struct ath_atx_tid *tid,
if (tid->an->mpdudensity == 0)
return ndelim;
rix = tx_info->control.rates[0].idx;
flags = tx_info->control.rates[0].flags;
rix = bf->rates[0].idx;
flags = bf->rates[0].flags;
width = (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) ? 1 : 0;
half_gi = (flags & IEEE80211_TX_RC_SHORT_GI) ? 1 : 0;
@ -858,6 +864,7 @@ static enum ATH_AGGR_STATUS ath_tx_form_aggr(struct ath_softc *sc,
bf_first = bf;
if (!rl) {
ath_set_rates(tid->an->vif, tid->an->sta, bf);
aggr_limit = ath_lookup_rate(sc, bf, tid);
rl = 1;
}
@ -998,14 +1005,14 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf,
skb = bf->bf_mpdu;
tx_info = IEEE80211_SKB_CB(skb);
rates = tx_info->control.rates;
rates = bf->rates;
hdr = (struct ieee80211_hdr *)skb->data;
/* set dur_update_en for l-sig computation except for PS-Poll frames */
info->dur_update = !ieee80211_is_pspoll(hdr->frame_control);
info->rtscts_rate = fi->rtscts_rate;
for (i = 0; i < 4; i++) {
for (i = 0; i < ARRAY_SIZE(bf->rates); i++) {
bool is_40, is_sgi, is_sp;
int phy;
@ -1743,6 +1750,7 @@ static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
return;
}
ath_set_rates(tid->an->vif, tid->an->sta, bf);
bf->bf_state.bf_type = BUF_AMPDU;
INIT_LIST_HEAD(&bf_head);
list_add(&bf->list, &bf_head);
@ -1993,6 +2001,7 @@ int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
if (txctl->paprd)
bf->bf_state.bfs_paprd_timestamp = jiffies;
ath_set_rates(vif, sta, bf);
ath_tx_send_normal(sc, txctl->txq, tid, skb);
out: