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qcacmn: Add filter logic according to timestamp in scan

Browse source 
Currently the driver does not have any mechanism to filter
out the scan results according to the age.

Add a logic in the scan filter API, to filter out the scan
result according to the age threshold, so that APs which
are older than a particular value are filtered out.

Change-Id: If3f4b372b28a0f75b1d70915df4e3e1a7e518931
CRs-Fixed: 2447988
This commit is contained in:
gaurank kathpalia 2019-05-07 10:16:53 +05:30 • committed by nshrivas
commit c2dac1c92b
5 changed files with 11 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

6
umac/scan/core/src/wlan_scan_cache_db.c
View file

@ -312,11 +312,11 @@ scm_get_next_node(struct scan_dbs *scan_db,
*/
static void scm_check_and_age_out(struct scan_dbs *scan_db,
struct scan_cache_node *node,
uint32_t scan_aging_time)
qdf_time_t scan_aging_time)
{
if (util_scan_entry_age(node->entry) >=
scan_aging_time) {
scm_debug("Aging out BSSID: %pM with age %d ms",
scm_debug("Aging out BSSID: %pM with age %lu ms",
node->entry->bssid.bytes,
util_scan_entry_age(node->entry));
qdf_spin_lock_bh(&scan_db->scan_db_lock);
@ -401,7 +401,7 @@ static QDF_STATUS scm_flush_oldest_entry(struct scan_dbs *scan_db)
}
if (oldest_node) {
scm_debug("Flush oldest BSSID: %pM with age %d ms",
scm_debug("Flush oldest BSSID: %pM with age %lu ms",
oldest_node->entry->bssid.bytes,
util_scan_entry_age(oldest_node->entry));
/* Release ref_cnt taken for oldest_node and delete it */

4
umac/scan/core/src/wlan_scan_filter.c
View file

@ -1150,6 +1150,10 @@ bool scm_filter_match(struct wlan_objmgr_psoc *psoc,
roam_params = &def_param->roam_params;
if (filter->age_threshold && filter->age_threshold <
util_scan_entry_age(db_entry))
return false;
if (filter->p2p_results && !db_entry->is_p2p)
return false;

2
umac/scan/core/src/wlan_scan_main.h
View file

@ -380,7 +380,7 @@ struct scan_default_params {
uint32_t burst_duration;
uint32_t max_scan_time;
uint32_t num_probes;
uint32_t scan_cache_aging_time;
qdf_time_t scan_cache_aging_time;
uint32_t select_5ghz_margin;
bool enable_mac_spoofing;
bool is_bssid_hint_priority;

2
umac/scan/dispatcher/inc/wlan_scan_public_structs.h
View file

@ -566,7 +566,7 @@ struct fils_filter_info {
struct scan_filter {
bool bss_scoring_required;
bool enable_adaptive_11r;
uint32_t age_threshold;
qdf_time_t age_threshold;
uint32_t p2p_results;
uint32_t rrm_measurement_filter;
uint32_t num_of_bssid;

4
umac/scan/dispatcher/inc/wlan_scan_utils_api.h
View file

@ -1140,10 +1140,10 @@ util_scan_entry_wmeparam(struct scan_cache_entry *scan_entry)
*
* Return: age in ms
*/
static inline uint32_t
static inline qdf_time_t
util_scan_entry_age(struct scan_cache_entry *scan_entry)
{
unsigned long ts = scan_entry->scan_entry_time;
qdf_time_t ts = scan_entry->scan_entry_time;
return qdf_mc_timer_get_system_time() - ts;
}