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Diffstat (limited to 'net/mac80211/tx.c')
-rw-r--r--net/mac80211/tx.c104
1 files changed, 58 insertions, 46 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index aecec2a72b08..99c3860bc0e2 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -91,11 +91,12 @@ static u16 ieee80211_duration(struct ieee80211_tx_data *tx, int group_addr,
int next_frag_len)
{
int rate, mrate, erp, dur, i;
- struct ieee80211_rate *txrate = tx->rate;
+ struct ieee80211_rate *txrate;
struct ieee80211_local *local = tx->local;
struct ieee80211_supported_band *sband;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ sband = local->hw.wiphy->bands[tx->channel->band];
+ txrate = &sband->bitrates[tx->rate_idx];
erp = 0;
if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
@@ -610,40 +611,40 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_tx_data *tx)
struct rate_selection rsel;
struct ieee80211_supported_band *sband;
- sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
+ sband = tx->local->hw.wiphy->bands[tx->channel->band];
- if (likely(!tx->rate)) {
+ if (likely(tx->rate_idx < 0)) {
rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
- tx->rate = rsel.rate;
- if (unlikely(rsel.probe)) {
+ tx->rate_idx = rsel.rate_idx;
+ if (unlikely(rsel.probe_idx >= 0)) {
tx->control->flags |=
IEEE80211_TXCTL_RATE_CTRL_PROBE;
tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
- tx->control->alt_retry_rate = tx->rate;
- tx->rate = rsel.probe;
+ tx->control->alt_retry_rate_idx = tx->rate_idx;
+ tx->rate_idx = rsel.probe_idx;
} else
- tx->control->alt_retry_rate = NULL;
+ tx->control->alt_retry_rate_idx = -1;
- if (!tx->rate)
+ if (unlikely(tx->rate_idx < 0))
return TX_DROP;
} else
- tx->control->alt_retry_rate = NULL;
+ tx->control->alt_retry_rate_idx = -1;
if (tx->sdata->bss_conf.use_cts_prot &&
- (tx->flags & IEEE80211_TX_FRAGMENTED) && rsel.nonerp) {
- tx->last_frag_rate = tx->rate;
- if (rsel.probe)
+ (tx->flags & IEEE80211_TX_FRAGMENTED) && (rsel.nonerp_idx >= 0)) {
+ tx->last_frag_rate_idx = tx->rate_idx;
+ if (rsel.probe_idx >= 0)
tx->flags &= ~IEEE80211_TX_PROBE_LAST_FRAG;
else
tx->flags |= IEEE80211_TX_PROBE_LAST_FRAG;
- tx->rate = rsel.nonerp;
- tx->control->tx_rate = rsel.nonerp;
+ tx->rate_idx = rsel.nonerp_idx;
+ tx->control->tx_rate_idx = rsel.nonerp_idx;
tx->control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
} else {
- tx->last_frag_rate = tx->rate;
- tx->control->tx_rate = tx->rate;
+ tx->last_frag_rate_idx = tx->rate_idx;
+ tx->control->tx_rate_idx = tx->rate_idx;
}
- tx->control->tx_rate = tx->rate;
+ tx->control->tx_rate_idx = tx->rate_idx;
return TX_CONTINUE;
}
@@ -655,6 +656,9 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
u16 fc = le16_to_cpu(hdr->frame_control);
u16 dur;
struct ieee80211_tx_control *control = tx->control;
+ struct ieee80211_supported_band *sband;
+
+ sband = tx->local->hw.wiphy->bands[tx->channel->band];
if (!control->retry_limit) {
if (!is_multicast_ether_addr(hdr->addr1)) {
@@ -681,14 +685,14 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
* frames.
* TODO: The last fragment could still use multiple retry
* rates. */
- control->alt_retry_rate = NULL;
+ control->alt_retry_rate_idx = -1;
}
/* 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 ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
- (tx->rate->flags & IEEE80211_RATE_ERP_G) &&
+ (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_ERP_G) &&
(tx->flags & IEEE80211_TX_UNICAST) &&
tx->sdata->bss_conf.use_cts_prot &&
!(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
@@ -698,7 +702,7 @@ ieee80211_tx_h_misc(struct ieee80211_tx_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->rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
+ (sband->bitrates[tx->rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
tx->sdata->bss_conf.use_short_preamble &&
(!tx->sta || test_sta_flags(tx->sta, WLAN_STA_SHORT_PREAMBLE))) {
tx->control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
@@ -715,32 +719,32 @@ ieee80211_tx_h_misc(struct ieee80211_tx_data *tx)
if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
(control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
struct ieee80211_supported_band *sband;
- struct ieee80211_rate *rate, *baserate;
+ struct ieee80211_rate *rate;
+ s8 baserate = -1;
int idx;
- sband = tx->local->hw.wiphy->bands[
- tx->local->hw.conf.channel->band];
+ sband = tx->local->hw.wiphy->bands[tx->channel->band];
/* Do not use multiple retry rates when using RTS/CTS */
- control->alt_retry_rate = NULL;
+ control->alt_retry_rate_idx = -1;
/* Use min(data rate, max base rate) as CTS/RTS rate */
- rate = tx->rate;
- baserate = NULL;
+ rate = &sband->bitrates[tx->rate_idx];
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];
+ (baserate < 0 ||
+ (sband->bitrates[baserate].bitrate
+ < sband->bitrates[idx].bitrate)))
+ baserate = idx;
}
- if (baserate)
- control->rts_cts_rate = baserate;
+ if (baserate >= 0)
+ control->rts_cts_rate_idx = baserate;
else
- control->rts_cts_rate = &sband->bitrates[0];
+ control->rts_cts_rate_idx = 0;
}
if (tx->sta) {
@@ -768,7 +772,11 @@ ieee80211_tx_h_load_stats(struct ieee80211_tx_data *tx)
struct sk_buff *skb = tx->skb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u32 load = 0, hdrtime;
- struct ieee80211_rate *rate = tx->rate;
+ struct ieee80211_rate *rate;
+ struct ieee80211_supported_band *sband;
+
+ sband = tx->local->hw.wiphy->bands[tx->channel->band];
+ rate = &sband->bitrates[tx->rate_idx];
/* 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
@@ -803,7 +811,7 @@ ieee80211_tx_h_load_stats(struct ieee80211_tx_data *tx)
for (i = 0; i < tx->num_extra_frag; i++) {
load += 2 * hdrtime;
load += tx->extra_frag[i]->len *
- tx->rate->bitrate;
+ rate->bitrate;
}
}
@@ -859,7 +867,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
struct ieee80211_tx_control *control = tx->control;
- sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
+ sband = tx->local->hw.wiphy->bands[tx->channel->band];
control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
tx->flags |= IEEE80211_TX_INJECTED;
@@ -899,7 +907,7 @@ __ieee80211_parse_tx_radiotap(struct ieee80211_tx_data *tx,
r = &sband->bitrates[i];
if (r->bitrate == target_rate) {
- tx->rate = r;
+ tx->rate_idx = i;
break;
}
}
@@ -1097,7 +1105,7 @@ 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->num_extra_frag) {
- control->tx_rate = tx->last_frag_rate;
+ control->tx_rate_idx = tx->last_frag_rate_idx;
if (tx->flags & IEEE80211_TX_PROBE_LAST_FRAG)
control->flags |=
@@ -1155,6 +1163,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
sta = tx.sta;
tx.channel = local->hw.conf.channel;
+ control->band = tx.channel->band;
for (handler = ieee80211_tx_handlers; *handler != NULL;
handler++) {
@@ -1187,7 +1196,7 @@ static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
next_len = tx.extra_frag[i + 1]->len;
} else {
next_len = 0;
- tx.rate = tx.last_frag_rate;
+ tx.rate_idx = tx.last_frag_rate_idx;
}
dur = ieee80211_duration(&tx, 0, next_len);
hdr->duration_id = cpu_to_le16(dur);
@@ -1224,7 +1233,7 @@ retry:
store->skb = skb;
store->extra_frag = tx.extra_frag;
store->num_extra_frag = tx.num_extra_frag;
- store->last_frag_rate = tx.last_frag_rate;
+ store->last_frag_rate_idx = tx.last_frag_rate_idx;
store->last_frag_rate_ctrl_probe =
!!(tx.flags & IEEE80211_TX_PROBE_LAST_FRAG);
}
@@ -1685,7 +1694,7 @@ void ieee80211_tx_pending(unsigned long data)
tx.control = &store->control;
tx.extra_frag = store->extra_frag;
tx.num_extra_frag = store->num_extra_frag;
- tx.last_frag_rate = store->last_frag_rate;
+ tx.last_frag_rate_idx = store->last_frag_rate_idx;
tx.flags = 0;
if (store->last_frag_rate_ctrl_probe)
tx.flags |= IEEE80211_TX_PROBE_LAST_FRAG;
@@ -1789,9 +1798,10 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
struct ieee80211_mgmt *mgmt;
int *num_beacons;
bool err = true;
+ enum ieee80211_band band = local->hw.conf.channel->band;
u8 *pos;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
+ sband = local->hw.wiphy->bands[band];
rcu_read_lock();
@@ -1885,8 +1895,9 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
}
if (control) {
+ control->band = band;
rate_control_get_rate(local->mdev, sband, skb, &rsel);
- if (!rsel.rate) {
+ if (unlikely(rsel.rate_idx < 0)) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
"no rate found\n",
@@ -1898,9 +1909,9 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
}
control->vif = vif;
- control->tx_rate = rsel.rate;
+ control->tx_rate_idx = rsel.rate_idx;
if (sdata->bss_conf.use_short_preamble &&
- rsel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
+ sband->bitrates[rsel.rate_idx].flags & IEEE80211_RATE_SHORT_PREAMBLE)
control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
control->flags |= IEEE80211_TXCTL_NO_ACK;
@@ -2006,6 +2017,7 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
sta = tx.sta;
tx.flags |= IEEE80211_TX_PS_BUFFERED;
tx.channel = local->hw.conf.channel;
+ control->band = tx.channel->band;
for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) {
res = (*handler)(&tx);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-13 19:10:51 +0000