Use the user scan times if those were set, otherwise
use the default values.
This patch handles both hw_scan and non-offload scan.
Signed-off-by: Victor Goldenshtein <victorg@xxxxxx>
---
net/mac80211/scan.c | 31 ++++++++++++++++++++-----------
1 files changed, 20 insertions(+), 11 deletions(-)
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 169da07..548b564 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -26,8 +26,6 @@
#include "mesh.h"
#define IEEE80211_PROBE_DELAY (HZ / 33)
-#define IEEE80211_CHANNEL_TIME (HZ / 33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 8)
static void ieee80211_rx_bss_free(struct cfg80211_bss *cbss)
{
@@ -421,7 +419,7 @@ static void ieee80211_scan_state_send_probe(struct ieee80211_local *local,
* After sending probe requests, wait for probe responses
* on the channel.
*/
- *next_delay = IEEE80211_CHANNEL_TIME;
+ *next_delay = TU_TO_JIFFIES(local->scan_req->min_ch_time);
local->next_scan_state = SCAN_DECISION;
}
@@ -456,6 +454,13 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
local->hw_scan_req->ssids = req->ssids;
local->hw_scan_req->n_ssids = req->n_ssids;
+ local->hw_scan_req->max_ch_time = req->max_ch_time;
+ local->hw_scan_req->min_ch_time = req->min_ch_time;
+ local->hw_scan_req->max_passive_ch_time =
+ req->max_passive_ch_time;
+ local->hw_scan_req->min_passive_ch_time =
+ req->min_passive_ch_time;
+
ies = (u8 *)local->hw_scan_req +
sizeof(*local->hw_scan_req) +
req->n_channels * sizeof(req->channels[0]);
@@ -502,10 +507,10 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
if ((req->channels[0]->flags &
IEEE80211_CHAN_PASSIVE_SCAN) ||
!local->scan_req->n_ssids) {
- next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+ next_delay = TU_TO_JIFFIES(req->min_passive_ch_time);
} else {
ieee80211_scan_state_send_probe(local, &next_delay);
- next_delay = IEEE80211_CHANNEL_TIME;
+ next_delay = TU_TO_JIFFIES(req->min_ch_time);
}
/* Now, just wait a bit and we are all done! */
@@ -540,15 +545,16 @@ static int __ieee80211_start_scan(struct ieee80211_sub_if_data *sdata,
}
static unsigned long
-ieee80211_scan_get_channel_time(struct ieee80211_channel *chan)
+ieee80211_scan_get_channel_time(struct cfg80211_scan_request *scan_req,
+ struct ieee80211_channel *chan)
{
/*
* TODO: channel switching also consumes quite some time,
* add that delay as well to get a better estimation
*/
if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
- return IEEE80211_PASSIVE_CHANNEL_TIME;
- return IEEE80211_PROBE_DELAY + IEEE80211_CHANNEL_TIME;
+ return TU_TO_JIFFIES(scan_req->min_passive_ch_time);
+ return IEEE80211_PROBE_DELAY + TU_TO_JIFFIES(scan_req->min_ch_time);
}
static void ieee80211_scan_state_decision(struct ieee80211_local *local,
@@ -609,12 +615,14 @@ static void ieee80211_scan_state_decision(struct ieee80211_local *local,
*/
bad_latency = time_after(jiffies +
- ieee80211_scan_get_channel_time(next_chan),
+ ieee80211_scan_get_channel_time(local->scan_req,
+ next_chan),
local->leave_oper_channel_time +
usecs_to_jiffies(pm_qos_request(PM_QOS_NETWORK_LATENCY)));
listen_int_exceeded = time_after(jiffies +
- ieee80211_scan_get_channel_time(next_chan),
+ ieee80211_scan_get_channel_time(local->scan_req,
+ next_chan),
local->leave_oper_channel_time +
usecs_to_jiffies(min_beacon_int * 1024) *
local->hw.conf.listen_interval);
@@ -662,7 +670,8 @@ static void ieee80211_scan_state_set_channel(struct ieee80211_local *local,
*/
if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN ||
!local->scan_req->n_ssids) {
- *next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
+ *next_delay =
+ TU_TO_JIFFIES(local->scan_req->min_passive_ch_time);
local->next_scan_state = SCAN_DECISION;
return;
}
--
1.7.5.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
