Provide additional statistic support to the debugfs.
Last Rx Rate:
Currently there is no stats available in the debugfs for rx rate. This
statistics adds the rate of the last received packet from the station.
Signed-off-by: Saravana <saravanad@xxxxxxxxxxx>
---
The diff file is generated from wireless-testing git tree.
net/mac80211/cfg.c | 21 +++++++++++++--------
net/mac80211/debugfs_sta.c | 15 +++++++++++++++
net/mac80211/sta_info.h | 2 ++
3 files changed, 30 insertions(+), 8 deletions(-)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 6733b374..e45511a 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -396,6 +396,18 @@ void sta_set_rate_info_tx(struct sta_info *sta,
rate_idx_to_bitrate(rinfo, sta, rate->idx);
}
+void sta_set_rate_info_rx(struct sta_info *sta,struct rate_info *rinfo)
+{
+ rinfo->flags = 0;
+ if (sta->last_rx_rate_flag & RX_FLAG_HT)
+ rinfo->flags |= RATE_INFO_FLAGS_MCS;
+ if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
+ rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
+ if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
+ rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
+ rate_idx_to_bitrate(rinfo, sta, sta->last_rx_rate_idx);
+
+}
static void sta_set_sinfo(struct sta_info *sta, struct station_info
*sinfo)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
@@ -443,14 +455,7 @@ static void sta_set_sinfo(struct sta_info *sta,
struct station_info *sinfo)
sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
- sinfo->rxrate.flags = 0;
- if (sta->last_rx_rate_flag & RX_FLAG_HT)
- sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
- if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
- sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
- if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
- sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
- rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
+ sta_set_rate_info_rx(sta,&sinfo->rxrate);
if (ieee80211_vif_is_mesh(&sdata->vif)) {
#ifdef CONFIG_MAC80211_MESH
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
old mode 100644
new mode 100755
index 89281d2..16e738e
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -321,6 +321,20 @@ static ssize_t sta_ht_capa_read(struct file *file,
char __user *userbuf,
}
STA_OPS(ht_capa);
+static ssize_t sta_last_rx_rate_read(struct file *file, char __user
*userbuf,
+ size_t count, loff_t *ppos)
+{
+ struct sta_info *sta = file->private_data;
+ struct rate_info rinfo;
+ u16 rate;
+
+ sta_set_rate_info_rx(sta,&rinfo);
+
+ rate = cfg80211_calculate_bitrate(&rinfo);
+
+ return mac80211_format_buffer(userbuf, count, ppos, "%d.%d
MBit/s\n",rate/10,rate%10);
+}
+STA_OPS(last_rx_rate);
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, 0400, \
sta->debugfs.dir, sta, &sta_ ##name## _ops);
@@ -369,6 +383,7 @@ void ieee80211_sta_debugfs_add(struct sta_info *sta)
DEBUGFS_ADD(dev);
DEBUGFS_ADD(last_signal);
DEBUGFS_ADD(ht_capa);
+ DEBUGFS_ADD(last_rx_rate);
DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 776f3d0..122d853 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -550,6 +550,8 @@ int sta_info_flush(struct ieee80211_local *local,
void sta_set_rate_info_tx(struct sta_info *sta,
const struct ieee80211_tx_rate *rate,
struct rate_info *rinfo);
+void sta_set_rate_info_rx(struct sta_info *sta,
+ struct rate_info *rinfo);
void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
unsigned long exp_time);
--
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