From 79acac070854883b46e94257a06842eff278dab5 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Mon, 22 Apr 2013 23:11:44 +0200 Subject: [PATCH] ath9k: add support for the new rate control API Signed-off-by: Felix Fietkau Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/init.c | 3 ++- drivers/net/wireless/ath/ath9k/xmit.c | 23 ++++++++++++++++------- 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 1915f12328b3..8a1888d02070 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 6b275e0864b0..0237b2868961 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 108fe5fc1eaa..eab0fcb7ded6 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: -- 2.20.1