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authorFelix Fietkau <nbd@openwrt.org>2013-04-22 23:11:44 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-04-23 14:14:53 -0400
commit79acac070854883b46e94257a06842eff278dab5 (patch)
tree47ca41341660896e3cbf6f0bcec430b53d7119d6 /drivers/net/wireless/ath/ath9k
parentbdc21457ac2bb75b59e774303edbb623830284ae (diff)
downloadop-kernel-dev-79acac070854883b46e94257a06842eff278dab5.zip
op-kernel-dev-79acac070854883b46e94257a06842eff278dab5.tar.gz
ath9k: add support for the new rate control API
Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k')
-rw-r--r--drivers/net/wireless/ath/ath9k/ath9k.h1
-rw-r--r--drivers/net/wireless/ath/ath9k/init.c3
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c23
3 files changed, 19 insertions, 8 deletions
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 1915f12..8a1888d 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -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;
};
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 6b275e0..0237b28 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -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;
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 108fe5f..eab0fcb 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -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:
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