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Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c164
1 files changed, 102 insertions, 62 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 38e1b2bd8245..9e5359991985 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -92,9 +92,13 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
int rate, mrate, erp, dur, i;
struct ieee80211_rate *txrate = tx->u.tx.rate;
struct ieee80211_local *local = tx->local;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
+ struct ieee80211_supported_band *sband;
- erp = txrate->flags & IEEE80211_RATE_ERP;
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+
+ erp = 0;
+ if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ erp = txrate->flags & IEEE80211_RATE_ERP_G;
/*
* data and mgmt (except PS Poll):
@@ -150,20 +154,36 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
* Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
*/
rate = -1;
- mrate = 10; /* use 1 Mbps if everything fails */
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *r = &mode->rates[i];
- if (r->rate > txrate->rate)
- break;
+ /* use lowest available if everything fails */
+ mrate = sband->bitrates[0].bitrate;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ struct ieee80211_rate *r = &sband->bitrates[i];
- if (IEEE80211_RATE_MODULATION(txrate->flags) !=
- IEEE80211_RATE_MODULATION(r->flags))
- continue;
+ if (r->bitrate > txrate->bitrate)
+ break;
- if (r->flags & IEEE80211_RATE_BASIC)
- rate = r->rate;
- else if (r->flags & IEEE80211_RATE_MANDATORY)
- mrate = r->rate;
+ if (tx->sdata->basic_rates & BIT(i))
+ rate = r->bitrate;
+
+ switch (sband->band) {
+ case IEEE80211_BAND_2GHZ: {
+ u32 flag;
+ if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
+ flag = IEEE80211_RATE_MANDATORY_G;
+ else
+ flag = IEEE80211_RATE_MANDATORY_B;
+ if (r->flags & flag)
+ mrate = r->bitrate;
+ break;
+ }
+ case IEEE80211_BAND_5GHZ:
+ if (r->flags & IEEE80211_RATE_MANDATORY_A)
+ mrate = r->bitrate;
+ break;
+ case IEEE80211_NUM_BANDS:
+ WARN_ON(1);
+ break;
+ }
}
if (rate == -1) {
/* No matching basic rate found; use highest suitable mandatory
@@ -184,7 +204,7 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
dur *= 2; /* ACK + SIFS */
/* next fragment */
dur += ieee80211_frame_duration(local, next_frag_len,
- txrate->rate, erp,
+ txrate->bitrate, erp,
tx->sdata->bss_conf.use_short_preamble);
}
@@ -585,26 +605,28 @@ static ieee80211_txrx_result
ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
{
struct rate_selection rsel;
+ struct ieee80211_supported_band *sband;
+
+ sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
if (likely(!tx->u.tx.rate)) {
- rate_control_get_rate(tx->dev, tx->u.tx.mode, tx->skb, &rsel);
+ rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
tx->u.tx.rate = rsel.rate;
- if (unlikely(rsel.probe != NULL)) {
+ if (unlikely(rsel.probe)) {
tx->u.tx.control->flags |=
IEEE80211_TXCTL_RATE_CTRL_PROBE;
tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
+ tx->u.tx.control->alt_retry_rate = tx->u.tx.rate;
tx->u.tx.rate = rsel.probe;
} else
- tx->u.tx.control->alt_retry_rate = -1;
+ tx->u.tx.control->alt_retry_rate = NULL;
if (!tx->u.tx.rate)
return TXRX_DROP;
} else
- tx->u.tx.control->alt_retry_rate = -1;
+ tx->u.tx.control->alt_retry_rate = NULL;
- if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
- tx->sdata->bss_conf.use_cts_prot &&
+ if (tx->sdata->bss_conf.use_cts_prot &&
(tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) {
tx->u.tx.last_frag_rate = tx->u.tx.rate;
if (rsel.probe)
@@ -612,13 +634,13 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
else
tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
tx->u.tx.rate = rsel.nonerp;
- tx->u.tx.control->rate = rsel.nonerp;
+ tx->u.tx.control->tx_rate = rsel.nonerp;
tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
} else {
tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.control->rate = tx->u.tx.rate;
+ tx->u.tx.control->tx_rate = tx->u.tx.rate;
}
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
+ tx->u.tx.control->tx_rate = tx->u.tx.rate;
return TXRX_CONTINUE;
}
@@ -630,7 +652,6 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
u16 fc = le16_to_cpu(hdr->frame_control);
u16 dur;
struct ieee80211_tx_control *control = tx->u.tx.control;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
if (!control->retry_limit) {
if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -657,14 +678,14 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
* frames.
* TODO: The last fragment could still use multiple retry
* rates. */
- control->alt_retry_rate = -1;
+ control->alt_retry_rate = NULL;
}
/* Use CTS protection for unicast frames sent using extended rates if
* there are associated non-ERP stations and RTS/CTS is not configured
* for the frame. */
- if (mode->mode == MODE_IEEE80211G &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
+ if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
+ (tx->u.tx.rate->flags & IEEE80211_RATE_ERP_G) &&
(tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
tx->sdata->bss_conf.use_cts_prot &&
!(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
@@ -674,10 +695,10 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
* short preambles at the selected rate and short preambles are
* available on the network at the current point in time. */
if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
+ (tx->u.tx.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
tx->sdata->bss_conf.use_short_preamble &&
(!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
}
/* Setup duration field for the first fragment of the frame. Duration
@@ -690,19 +711,33 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
(control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
- struct ieee80211_rate *rate;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rate *rate, *baserate;
+ int idx;
+
+ sband = tx->local->hw.wiphy->bands[
+ tx->local->hw.conf.channel->band];
/* Do not use multiple retry rates when using RTS/CTS */
- control->alt_retry_rate = -1;
+ control->alt_retry_rate = NULL;
/* Use min(data rate, max base rate) as CTS/RTS rate */
rate = tx->u.tx.rate;
- while (rate > mode->rates &&
- !(rate->flags & IEEE80211_RATE_BASIC))
- rate--;
+ baserate = NULL;
+
+ for (idx = 0; idx < sband->n_bitrates; idx++) {
+ if (sband->bitrates[idx].bitrate > rate->bitrate)
+ continue;
+ if (tx->sdata->basic_rates & BIT(idx) &&
+ (!baserate ||
+ (baserate->bitrate < sband->bitrates[idx].bitrate)))
+ baserate = &sband->bitrates[idx];
+ }
- control->rts_cts_rate = rate->val;
- control->rts_rate = rate;
+ if (baserate)
+ control->rts_cts_rate = baserate;
+ else
+ control->rts_cts_rate = &sband->bitrates[0];
}
if (tx->sta) {
@@ -726,10 +761,10 @@ static ieee80211_txrx_result
ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
{
struct ieee80211_local *local = tx->local;
- struct ieee80211_hw_mode *mode = tx->u.tx.mode;
struct sk_buff *skb = tx->skb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u32 load = 0, hdrtime;
+ struct ieee80211_rate *rate = tx->u.tx.rate;
/* TODO: this could be part of tx_status handling, so that the number
* of retries would be known; TX rate should in that case be stored
@@ -740,9 +775,9 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
/* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
* 1 usec = 1/8 * (1080 / 10) = 13.5 */
- if (mode->mode == MODE_IEEE80211A ||
- (mode->mode == MODE_IEEE80211G &&
- tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
+ if (tx->u.tx.channel->band == IEEE80211_BAND_5GHZ ||
+ (tx->u.tx.channel->band == IEEE80211_BAND_2GHZ &&
+ rate->flags & IEEE80211_RATE_ERP_G))
hdrtime = CHAN_UTIL_HDR_SHORT;
else
hdrtime = CHAN_UTIL_HDR_LONG;
@@ -756,14 +791,15 @@ ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
load += hdrtime;
- load += skb->len * tx->u.tx.rate->rate_inv;
+ /* TODO: optimise again */
+ load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
if (tx->u.tx.extra_frag) {
int i;
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
load += 2 * hdrtime;
load += tx->u.tx.extra_frag[i]->len *
- tx->u.tx.rate->rate;
+ tx->u.tx.rate->bitrate;
}
}
@@ -816,10 +852,12 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
struct ieee80211_radiotap_iterator iterator;
struct ieee80211_radiotap_header *rthdr =
(struct ieee80211_radiotap_header *) skb->data;
- struct ieee80211_hw_mode *mode = tx->local->hw.conf.mode;
+ struct ieee80211_supported_band *sband;
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
struct ieee80211_tx_control *control = tx->u.tx.control;
+ sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
+
control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
@@ -852,10 +890,12 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
* ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
*/
target_rate = (*iterator.this_arg) * 5;
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *r = &mode->rates[i];
+ for (i = 0; i < sband->n_bitrates; i++) {
+ struct ieee80211_rate *r;
- if (r->rate == target_rate) {
+ r = &sband->bitrates[i];
+
+ if (r->bitrate == target_rate) {
tx->u.tx.rate = r;
break;
}
@@ -870,9 +910,11 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
control->antenna_sel_tx = (*iterator.this_arg) + 1;
break;
+#if 0
case IEEE80211_RADIOTAP_DBM_TX_POWER:
control->power_level = *iterator.this_arg;
break;
+#endif
case IEEE80211_RADIOTAP_FLAGS:
if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
@@ -1054,8 +1096,8 @@ static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
if (__ieee80211_queue_stopped(local, control->queue))
return IEEE80211_TX_FRAG_AGAIN;
if (i == tx->u.tx.num_extra_frag) {
- control->tx_rate = tx->u.tx.last_frag_hwrate;
- control->rate = tx->u.tx.last_frag_rate;
+ control->tx_rate = tx->u.tx.last_frag_rate;
+
if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
control->flags |=
IEEE80211_TXCTL_RATE_CTRL_PROBE;
@@ -1114,7 +1156,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
rcu_read_lock();
sta = tx.sta;
- tx.u.tx.mode = local->hw.conf.mode;
+ tx.u.tx.channel = local->hw.conf.channel;
for (handler = local->tx_handlers; *handler != NULL;
handler++) {
@@ -1151,7 +1193,6 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
} else {
next_len = 0;
tx.u.tx.rate = tx.u.tx.last_frag_rate;
- tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
}
dur = ieee80211_duration(&tx, 0, next_len);
hdr->duration_id = cpu_to_le16(dur);
@@ -1188,7 +1229,6 @@ retry:
store->skb = skb;
store->extra_frag = tx.u.tx.extra_frag;
store->num_extra_frag = tx.u.tx.num_extra_frag;
- store->last_frag_hwrate = tx.u.tx.last_frag_hwrate;
store->last_frag_rate = tx.u.tx.last_frag_rate;
store->last_frag_rate_ctrl_probe =
!!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
@@ -1609,7 +1649,6 @@ void ieee80211_tx_pending(unsigned long data)
tx.u.tx.control = &store->control;
tx.u.tx.extra_frag = store->extra_frag;
tx.u.tx.num_extra_frag = store->num_extra_frag;
- tx.u.tx.last_frag_hwrate = store->last_frag_hwrate;
tx.u.tx.last_frag_rate = store->last_frag_rate;
tx.flags = 0;
if (store->last_frag_rate_ctrl_probe)
@@ -1712,6 +1751,9 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct ieee80211_if_ap *ap = NULL;
struct rate_selection rsel;
struct beacon_data *beacon;
+ struct ieee80211_supported_band *sband;
+
+ sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
rcu_read_lock();
@@ -1750,8 +1792,7 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
beacon->tail_len);
if (control) {
- rate_control_get_rate(local->mdev, local->oper_hw_mode, skb,
- &rsel);
+ rate_control_get_rate(local->mdev, sband, skb, &rsel);
if (!rsel.rate) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
@@ -1764,12 +1805,11 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
}
control->vif = vif;
- control->tx_rate =
- (sdata->bss_conf.use_short_preamble &&
- (rsel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rsel.rate->val2 : rsel.rate->val;
+ control->tx_rate = rsel.rate;
+ if (sdata->bss_conf.use_short_preamble &&
+ rsel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+ control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- control->power_level = local->hw.conf.power_level;
control->flags |= IEEE80211_TXCTL_NO_ACK;
control->retry_limit = 1;
control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
@@ -1874,7 +1914,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
}
sta = tx.sta;
tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
- tx.u.tx.mode = local->hw.conf.mode;
+ tx.u.tx.channel = local->hw.conf.channel;
for (handler = local->tx_handlers; *handler != NULL; handler++) {
res = (*handler)(&tx);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 07:11:06 +0000