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Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c82
1 files changed, 47 insertions, 35 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 3aae8e9e4e0a..c9ff98a93211 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -82,10 +82,10 @@ static inline int should_drop_frame(struct ieee80211_rx_status *status,
*/
static struct sk_buff *
ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
- struct ieee80211_rx_status *status)
+ struct ieee80211_rx_status *status,
+ struct ieee80211_rate *rate)
{
struct ieee80211_sub_if_data *sdata;
- struct ieee80211_rate *rate;
int needed_headroom = 0;
struct ieee80211_radiotap_header *rthdr;
__le64 *rttsft = NULL;
@@ -194,14 +194,11 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
rtfixed->rx_flags |=
cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
- rate = ieee80211_get_rate(local, status->phymode,
- status->rate);
- if (rate)
- rtfixed->rate = rate->rate / 5;
+ rtfixed->rate = rate->bitrate / 5;
rtfixed->chan_freq = cpu_to_le16(status->freq);
- if (status->phymode == MODE_IEEE80211A)
+ if (status->band == IEEE80211_BAND_5GHZ)
rtfixed->chan_flags =
cpu_to_le16(IEEE80211_CHAN_OFDM |
IEEE80211_CHAN_5GHZ);
@@ -320,34 +317,21 @@ static void ieee80211_verify_ip_alignment(struct ieee80211_txrx_data *rx)
static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_rx_status *status)
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *status,
+ struct ieee80211_rate *rate)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u32 load = 0, hdrtime;
- struct ieee80211_rate *rate;
- struct ieee80211_hw_mode *mode = local->hw.conf.mode;
- int i;
/* Estimate total channel use caused by this frame */
- if (unlikely(mode->num_rates < 0))
- return TXRX_CONTINUE;
-
- rate = &mode->rates[0];
- for (i = 0; i < mode->num_rates; i++) {
- if (mode->rates[i].val == status->rate) {
- rate = &mode->rates[i];
- break;
- }
- }
-
/* 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 &&
- rate->flags & IEEE80211_RATE_ERP))
+ if (status->band == IEEE80211_BAND_5GHZ ||
+ (status->band == IEEE80211_BAND_5GHZ &&
+ rate->flags & IEEE80211_RATE_ERP_G))
hdrtime = CHAN_UTIL_HDR_SHORT;
else
hdrtime = CHAN_UTIL_HDR_LONG;
@@ -356,7 +340,8 @@ static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
if (!is_multicast_ether_addr(hdr->addr1))
load += hdrtime;
- load += skb->len * rate->rate_inv;
+ /* TODO: optimise again */
+ load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
/* Divide channel_use by 8 to avoid wrapping around the counter */
load >>= CHAN_UTIL_SHIFT;
@@ -1685,7 +1670,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
struct sk_buff *skb,
struct ieee80211_rx_status *status,
- u32 load)
+ u32 load,
+ struct ieee80211_rate *rate)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata;
@@ -1705,6 +1691,7 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
rx.u.rx.status = status;
rx.u.rx.load = load;
+ rx.u.rx.rate = rate;
rx.fc = le16_to_cpu(hdr->frame_control);
type = rx.fc & IEEE80211_FCTL_FTYPE;
@@ -1837,6 +1824,8 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
u16 head_seq_num, buf_size;
int index;
u32 pkt_load;
+ struct ieee80211_supported_band *sband;
+ struct ieee80211_rate *rate;
buf_size = tid_agg_rx->buf_size;
head_seq_num = tid_agg_rx->head_seq_num;
@@ -1867,12 +1856,14 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
memcpy(&status,
tid_agg_rx->reorder_buf[index]->cb,
sizeof(status));
+ sband = local->hw.wiphy->bands[status.band];
+ rate = &sband->bitrates[status.rate_idx];
pkt_load = ieee80211_rx_load_stats(local,
tid_agg_rx->reorder_buf[index],
- &status);
+ &status, rate);
__ieee80211_rx_handle_packet(hw,
tid_agg_rx->reorder_buf[index],
- &status, pkt_load);
+ &status, pkt_load, rate);
tid_agg_rx->stored_mpdu_num--;
tid_agg_rx->reorder_buf[index] = NULL;
}
@@ -1912,11 +1903,13 @@ u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
/* release the reordered frame back to stack */
memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
sizeof(status));
+ sband = local->hw.wiphy->bands[status.band];
+ rate = &sband->bitrates[status.rate_idx];
pkt_load = ieee80211_rx_load_stats(local,
tid_agg_rx->reorder_buf[index],
- &status);
+ &status, rate);
__ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
- &status, pkt_load);
+ &status, pkt_load, rate);
tid_agg_rx->stored_mpdu_num--;
tid_agg_rx->reorder_buf[index] = NULL;
tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
@@ -1997,6 +1990,25 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
{
struct ieee80211_local *local = hw_to_local(hw);
u32 pkt_load;
+ struct ieee80211_rate *rate = NULL;
+ struct ieee80211_supported_band *sband;
+
+ if (status->band < 0 ||
+ status->band > IEEE80211_NUM_BANDS) {
+ WARN_ON(1);
+ return;
+ }
+
+ sband = local->hw.wiphy->bands[status->band];
+
+ if (!sband ||
+ status->rate_idx < 0 ||
+ status->rate_idx >= sband->n_bitrates) {
+ WARN_ON(1);
+ return;
+ }
+
+ rate = &sband->bitrates[status->rate_idx];
/*
* key references and virtual interfaces are protected using RCU
@@ -2011,17 +2023,17 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
* if it was previously present.
* Also, frames with less than 16 bytes are dropped.
*/
- skb = ieee80211_rx_monitor(local, skb, status);
+ skb = ieee80211_rx_monitor(local, skb, status, rate);
if (!skb) {
rcu_read_unlock();
return;
}
- pkt_load = ieee80211_rx_load_stats(local, skb, status);
+ pkt_load = ieee80211_rx_load_stats(local, skb, status, rate);
local->channel_use_raw += pkt_load;
if (!ieee80211_rx_reorder_ampdu(local, skb))
- __ieee80211_rx_handle_packet(hw, skb, status, pkt_load);
+ __ieee80211_rx_handle_packet(hw, skb, status, pkt_load, rate);
rcu_read_unlock();
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-07-07 13:59:13 +0000