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ath9k: improve multicast buffering handling, take care of the MORE_DATA flag properly

Browse source 
Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 36880
This commit is contained in:
Felix Fietkau 2013-06-07 16:04:06 +00:00
parent ab529a529b
commit 0924782279
3 changed files with 207 additions and 58 deletions
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255
package/mac80211/patches/300-pending_work.patch
View file

@ -40,7 +40,16 @@
u32 txq_max_pending[IEEE80211_NUM_ACS];
u16 max_aggr_framelen[IEEE80211_NUM_ACS][4][32];
};
@@ -356,6 +354,11 @@ void ath_tx_aggr_resume(struct ath_softc
@@ -346,6 +344,8 @@ int ath_txq_update(struct ath_softc *sc,
void ath_update_max_aggr_framelen(struct ath_softc *sc, int queue, int txop);
int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ath_tx_control *txctl);
+void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct sk_buff *skb);
void ath_tx_tasklet(struct ath_softc *sc);
void ath_tx_edma_tasklet(struct ath_softc *sc);
int ath_tx_aggr_start(struct ath_softc *sc, struct ieee80211_sta *sta,
@@ -356,6 +356,11 @@ void ath_tx_aggr_resume(struct ath_softc
void ath_tx_aggr_wakeup(struct ath_softc *sc, struct ath_node *an);
void ath_tx_aggr_sleep(struct ieee80211_sta *sta, struct ath_softc *sc,
struct ath_node *an);
@ -52,15 +61,7 @@
/********/
/* VIFs */
@@ -410,6 +413,7 @@ struct ath_beacon {
struct ath_descdma bdma;
struct ath_txq *cabq;
struct list_head bbuf;
+ int cabq_dur;
bool tx_processed;
bool tx_last;
@@ -658,11 +662,10 @@ enum sc_op_flags {
@@ -658,11 +663,10 @@ enum sc_op_flags {
struct ath_rate_table;
struct ath9k_vif_iter_data {
@ -4454,7 +4455,7 @@
info.type = get_hw_packet_type(skb);
if (bf->bf_next)
@@ -1142,6 +1145,25 @@ static void ath_tx_fill_desc(struct ath_
@@ -1142,6 +1145,22 @@ static void ath_tx_fill_desc(struct ath_
else
info.link = 0;
@ -4472,15 +4473,12 @@
+ info.flags |= ATH9K_TXDESC_LDPC;
+
+ ath_buf_set_rate(sc, bf, &info, len);
+
+ if (txq == sc->beacon.cabq)
+ sc->beacon.cabq_dur += info.rates[0].PktDuration;
+ }
+
info.buf_addr[0] = bf->bf_buf_addr;
info.buf_len[0] = skb->len;
info.pkt_len = fi->framelen;
@@ -1151,7 +1173,7 @@ static void ath_tx_fill_desc(struct ath_
@@ -1151,7 +1170,7 @@ static void ath_tx_fill_desc(struct ath_
if (aggr) {
if (bf == bf_first)
info.aggr = AGGR_BUF_FIRST;
@ -4489,7 +4487,7 @@
info.aggr = AGGR_BUF_LAST;
else
info.aggr = AGGR_BUF_MIDDLE;
@@ -1160,6 +1182,9 @@ static void ath_tx_fill_desc(struct ath_
@@ -1160,6 +1179,9 @@ static void ath_tx_fill_desc(struct ath_
info.aggr_len = len;
}
@ -4499,7 +4497,7 @@
ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
bf = bf->bf_next;
}
@@ -1224,9 +1249,6 @@ int ath_tx_aggr_start(struct ath_softc *
@@ -1224,9 +1246,6 @@ int ath_tx_aggr_start(struct ath_softc *
an = (struct ath_node *)sta->drv_priv;
txtid = ATH_AN_2_TID(an, tid);
@ -4509,7 +4507,7 @@
/* update ampdu factor/density, they may have changed. This may happen
* in HT IBSS when a beacon with HT-info is received after the station
* has already been added.
@@ -1238,7 +1260,7 @@ int ath_tx_aggr_start(struct ath_softc *
@@ -1238,7 +1257,7 @@ int ath_tx_aggr_start(struct ath_softc *
an->mpdudensity = density;
}
@ -4518,7 +4516,7 @@
txtid->paused = true;
*ssn = txtid->seq_start = txtid->seq_next;
txtid->bar_index = -1;
@@ -1255,28 +1277,9 @@ void ath_tx_aggr_stop(struct ath_softc *
@@ -1255,28 +1274,9 @@ void ath_tx_aggr_stop(struct ath_softc *
struct ath_atx_tid *txtid = ATH_AN_2_TID(an, tid);
struct ath_txq *txq = txtid->ac->txq;
@ -4548,7 +4546,7 @@
ath_tx_flush_tid(sc, txtid);
ath_txq_unlock_complete(sc, txq);
}
@@ -1342,18 +1345,92 @@ void ath_tx_aggr_wakeup(struct ath_softc
@@ -1342,18 +1342,92 @@ void ath_tx_aggr_wakeup(struct ath_softc
}
}
@ -4648,7 +4646,7 @@
}
/********************/
@@ -1709,8 +1786,9 @@ static void ath_tx_txqaddbuf(struct ath_
@@ -1709,8 +1783,9 @@ static void ath_tx_txqaddbuf(struct ath_
}
}
@ -4660,7 +4658,7 @@
{
struct ath_frame_info *fi = get_frame_info(skb);
struct list_head bf_head;
@@ -1723,26 +1801,28 @@ static void ath_tx_send_ampdu(struct ath
@@ -1723,26 +1798,28 @@ static void ath_tx_send_ampdu(struct ath
* - seqno is not within block-ack window
* - h/w queue depth exceeds low water mark
*/
@ -4695,7 +4693,7 @@
bf->bf_state.bf_type = BUF_AMPDU;
INIT_LIST_HEAD(&bf_head);
list_add(&bf->list, &bf_head);
@@ -1751,10 +1831,10 @@ static void ath_tx_send_ampdu(struct ath
@@ -1751,10 +1828,10 @@ static void ath_tx_send_ampdu(struct ath
ath_tx_addto_baw(sc, tid, bf->bf_state.seqno);
/* Queue to h/w without aggregation */
@ -4709,7 +4707,7 @@
}
static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
@@ -1892,49 +1972,6 @@ static struct ath_buf *ath_tx_setup_buff
@@ -1892,62 +1969,16 @@ static struct ath_buf *ath_tx_setup_buff
return bf;
}
@ -4756,22 +4754,79 @@
- }
-}
-
/* Upon failure caller should free skb */
int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ath_tx_control *txctl)
@@ -1945,8 +1982,11 @@ int ath_tx_start(struct ieee80211_hw *hw
-/* Upon failure caller should free skb */
-int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ath_tx_control *txctl)
+static int ath_tx_prepare(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ath_tx_control *txctl)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct ieee80211_sta *sta = txctl->sta;
struct ieee80211_vif *vif = info->control.vif;
struct ath_softc *sc = hw->priv;
struct ath_txq *txq = txctl->txq;
+ struct ath_atx_tid *tid = NULL;
+ struct ath_buf *bf;
int padpos, padsize;
- struct ath_txq *txq = txctl->txq;
- int padpos, padsize;
int frmlen = skb->len + FCS_LEN;
+ u8 tidno;
int q;
- int q;
+ int padpos, padsize;
/* NOTE: sta can be NULL according to net/mac80211.h */
@@ -2002,8 +2042,47 @@ int ath_tx_start(struct ieee80211_hw *hw
if (sta)
@@ -1968,6 +1999,11 @@ int ath_tx_start(struct ieee80211_hw *hw
hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
}
+ if ((vif && vif->type != NL80211_IFTYPE_AP &&
+ vif->type != NL80211_IFTYPE_AP_VLAN) ||
+ !ieee80211_is_data(hdr->frame_control))
+ info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
+
/* Add the padding after the header if this is not already done */
padpos = ieee80211_hdrlen(hdr->frame_control);
padsize = padpos & 3;
@@ -1977,16 +2013,34 @@ int ath_tx_start(struct ieee80211_hw *hw
skb_push(skb, padsize);
memmove(skb->data, skb->data + padsize, padpos);
- hdr = (struct ieee80211_hdr *) skb->data;
}
- if ((vif && vif->type != NL80211_IFTYPE_AP &&
- vif->type != NL80211_IFTYPE_AP_VLAN) ||
- !ieee80211_is_data(hdr->frame_control))
- info->flags |= IEEE80211_TX_CTL_CLEAR_PS_FILT;
-
setup_frame_info(hw, sta, skb, frmlen);
+ return 0;
+}
+
+
+/* Upon failure caller should free skb */
+int ath_tx_start(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ath_tx_control *txctl)
+{
+ struct ieee80211_hdr *hdr;
+ struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+ struct ieee80211_sta *sta = txctl->sta;
+ struct ieee80211_vif *vif = info->control.vif;
+ struct ath_softc *sc = hw->priv;
+ struct ath_txq *txq = txctl->txq;
+ struct ath_atx_tid *tid = NULL;
+ struct ath_buf *bf;
+ u8 tidno;
+ int q;
+ int ret;
+
+ ret = ath_tx_prepare(hw, skb, txctl);
+ if (ret)
+ return ret;
+ hdr = (struct ieee80211_hdr *) skb->data;
/*
* At this point, the vif, hw_key and sta pointers in the tx control
* info are no longer valid (overwritten by the ath_frame_info data.
@@ -2002,13 +2056,120 @@ int ath_tx_start(struct ieee80211_hw *hw
txq->stopped = true;
}
@ -4781,7 +4836,7 @@
+ txq = sc->tx.uapsdq;
+ ath_txq_lock(sc, txq);
+ }
+
+ if (txctl->an && ieee80211_is_data_qos(hdr->frame_control)) {
+ tidno = ieee80211_get_qos_ctl(hdr)[0] &
+ IEEE80211_QOS_CTL_TID_MASK;
@ -4809,7 +4864,7 @@
+ }
+
+ bf->bf_state.bfs_paprd = txctl->paprd;
+
+ if (txctl->paprd)
+ bf->bf_state.bfs_paprd_timestamp = jiffies;
+
@ -4820,7 +4875,80 @@
ath_txq_unlock(sc, txq);
return 0;
@@ -2054,7 +2133,12 @@ static void ath_tx_complete(struct ath_s
}
+void ath_tx_cabq(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+ struct sk_buff *skb)
+{
+ struct ath_softc *sc = hw->priv;
+ struct ath_tx_control txctl = {
+ .txq = sc->beacon.cabq
+ };
+ struct ath_tx_info info = {};
+ struct ieee80211_hdr *hdr;
+ struct ath_buf *bf_tail = NULL;
+ struct ath_buf *bf;
+ LIST_HEAD(bf_q);
+ int duration = 0;
+ int max_duration;
+
+ max_duration =
+ sc->cur_beacon_conf.beacon_interval * 1000 *
+ sc->cur_beacon_conf.dtim_period / ATH_BCBUF;
+
+ do {
+ struct ath_frame_info *fi = get_frame_info(skb);
+
+ if (ath_tx_prepare(hw, skb, &txctl))
+ break;
+
+ bf = ath_tx_setup_buffer(sc, txctl.txq, NULL, skb);
+ if (!bf)
+ break;
+
+ bf->bf_lastbf = bf;
+ ath_set_rates(vif, NULL, bf);
+ ath_buf_set_rate(sc, bf, &info, fi->framelen);
+ duration += info.rates[0].PktDuration;
+ if (bf_tail)
+ bf_tail->bf_next = bf;
+
+ list_add_tail(&bf->list, &bf_q);
+ bf_tail = bf;
+ skb = NULL;
+
+ if (duration > max_duration)
+ break;
+
+ skb = ieee80211_get_buffered_bc(hw, vif);
+ } while(skb);
+
+ if (skb)
+ ieee80211_free_txskb(hw, skb);
+
+ if (list_empty(&bf_q))
+ return;
+
+ bf = list_first_entry(&bf_q, struct ath_buf, list);
+ hdr = (struct ieee80211_hdr *) bf->bf_mpdu->data;
+
+ if (hdr->frame_control & IEEE80211_FCTL_MOREDATA) {
+ hdr->frame_control &= ~IEEE80211_FCTL_MOREDATA;
+ dma_sync_single_for_device(sc->dev, bf->bf_buf_addr,
+ sizeof(*hdr), DMA_TO_DEVICE);
+ }
+
+ ath_txq_lock(sc, txctl.txq);
+ ath_tx_fill_desc(sc, bf, txctl.txq, 0);
+ ath_tx_txqaddbuf(sc, txctl.txq, &bf_q, false);
+ TX_STAT_INC(txctl.txq->axq_qnum, queued);
+ ath_txq_unlock(sc, txctl.txq);
+}
+
/*****************/
/* TX Completion */
/*****************/
@@ -2054,7 +2215,12 @@ static void ath_tx_complete(struct ath_s
}
spin_unlock_irqrestore(&sc->sc_pm_lock, flags);
@ -4833,7 +4961,7 @@
if (txq == sc->tx.txq_map[q]) {
if (WARN_ON(--txq->pending_frames < 0))
txq->pending_frames = 0;
@@ -2065,8 +2149,6 @@ static void ath_tx_complete(struct ath_s
@@ -2065,8 +2231,6 @@ static void ath_tx_complete(struct ath_s
txq->stopped = false;
}
}
@ -4842,7 +4970,7 @@
}
static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
@@ -2408,12 +2490,10 @@ void ath_tx_node_init(struct ath_softc *
@@ -2408,12 +2572,10 @@ void ath_tx_node_init(struct ath_softc *
tid->baw_head = tid->baw_tail = 0;
tid->sched = false;
tid->paused = false;
@ -4856,7 +4984,7 @@
}
for (acno = 0, ac = &an->ac[acno];
@@ -2450,9 +2530,9 @@ void ath_tx_node_cleanup(struct ath_soft
@@ -2450,9 +2612,9 @@ void ath_tx_node_cleanup(struct ath_soft
}
ath_tid_drain(sc, txq, tid);
@ -5026,22 +5154,43 @@
/*
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -204,9 +204,15 @@ static struct ath_buf *ath9k_beacon_gene
}
@@ -107,23 +107,6 @@ static void ath9k_beacon_setup(struct at
ath9k_hw_set_txdesc(ah, bf->bf_desc, &info);
}
-static void ath9k_tx_cabq(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
- struct ath_softc *sc = hw->priv;
- struct ath_common *common = ath9k_hw_common(sc->sc_ah);
- struct ath_tx_control txctl;
-
- memset(&txctl, 0, sizeof(struct ath_tx_control));
- txctl.txq = sc->beacon.cabq;
-
- ath_dbg(common, XMIT, "transmitting CABQ packet, skb: %p\n", skb);
-
- if (ath_tx_start(hw, skb, &txctl) != 0) {
- ath_dbg(common, XMIT, "CABQ TX failed\n");
- ieee80211_free_txskb(hw, skb);
- }
-}
-
static struct ath_buf *ath9k_beacon_generate(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
@@ -205,10 +188,8 @@ static struct ath_buf *ath9k_beacon_gene
ath9k_beacon_setup(sc, vif, bf, info->control.rates[0].idx);
+ sc->beacon.cabq_dur = 0;
while (skb) {
ath9k_tx_cabq(hw, skb);
+
+ if (sc->beacon.cabq_dur / 1000 - 1 >
+ sc->cur_beacon_conf.beacon_interval / ATH_BCBUF)
+ break;
+
skb = ieee80211_get_buffered_bc(hw, vif);
}
- while (skb) {
- ath9k_tx_cabq(hw, skb);
- skb = ieee80211_get_buffered_bc(hw, vif);
- }
+ if (skb)
+ ath_tx_cabq(hw, vif, skb);
return bf;
}
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -68,13 +68,16 @@

4
package/mac80211/patches/512-ath9k_channelbw_debugfs.patch
View file

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -694,6 +694,7 @@ struct ath_softc {
@@ -695,6 +695,7 @@ struct ath_softc {
struct ieee80211_hw *hw;
struct device *dev;
@ -8,7 +8,7 @@
struct survey_info *cur_survey;
struct survey_info survey[ATH9K_NUM_CHANNELS];
@@ -898,6 +899,7 @@ struct fft_sample_ht20 {
@@ -899,6 +900,7 @@ struct fft_sample_ht20 {
u8 data[SPECTRAL_HT20_NUM_BINS];
} __packed;

6
package/mac80211/patches/530-ath9k_extra_leds.patch
View file

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -556,6 +556,9 @@ struct ath9k_wow_pattern {
@@ -557,6 +557,9 @@ struct ath9k_wow_pattern {
void ath_init_leds(struct ath_softc *sc);
void ath_deinit_leds(struct ath_softc *sc);
void ath_fill_led_pin(struct ath_softc *sc);
@ -10,7 +10,7 @@
#else
static inline void ath_init_leds(struct ath_softc *sc)
{
@@ -690,6 +693,13 @@ enum spectral_mode {
@@ -691,6 +694,13 @@ enum spectral_mode {
SPECTRAL_CHANSCAN,
};
@ -24,7 +24,7 @@
struct ath_softc {
struct ieee80211_hw *hw;
struct device *dev;
@@ -731,9 +741,8 @@ struct ath_softc {
@@ -732,9 +742,8 @@ struct ath_softc {
struct ieee80211_supported_band sbands[IEEE80211_NUM_BANDS];
#ifdef CONFIG_MAC80211_LEDS