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qcacmn: Drop beacon/probe frames posted on Scan Queue if queue is full

Selaa lähdekoodia 
Drop beacon/probe frames before posting on Scan queue if the queue
already has too many beacon/probes to process.

Also add scheduler API to get the queue size given the module ID.

Change-Id: I9153c7e77e74377863774b68e8163839e992358d
CRs-Fixed: 2298584
This commit is contained in:
Vignesh Viswanathan
2018-08-17 11:39:51 +05:30
committed by nshrivas
vanhempi cbc53dd023
commit 87a8e44583
5 muutettua tiedostoa jossa 84 lisäystä ja 16 poistoa
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12
umac/scan/core/src/wlan_scan_main.h
Näytä tiedosto

@@ -44,6 +44,18 @@
#define scm_debug(params...) \
QDF_TRACE_DEBUG(QDF_MODULE_ID_SCAN, params)
/* Rate Limited Logs */
#define scm_alert_rl(params...) \
QDF_TRACE_FATAL_RL(QDF_MODULE_ID_SCAN, params)
#define scm_err_rl(params...) \
QDF_TRACE_ERROR_RL(QDF_MODULE_ID_SCAN, params)
#define scm_warn_rl(params...) \
QDF_TRACE_WARN_RL(QDF_MODULE_ID_SCAN, params)
#define scm_info_rl(params...) \
QDF_TRACE_INFO_RL(QDF_MODULE_ID_SCAN, params)
#define scm_debug_rl(params...) \
QDF_TRACE_DEBUG_RL(QDF_MODULE_ID_SCAN, params)
#define scm_nofl_alert(params...) \
QDF_TRACE_FATAL_NO_FL(QDF_MODULE_ID_SCAN, params)
#define scm_nofl_err(params...) \

6
umac/scan/dispatcher/inc/wlan_scan_public_structs.h
Näytä tiedosto

@@ -69,6 +69,12 @@ typedef uint32_t wlan_scan_id;
#define MAX_INDEX_SCORE 100
#define MAX_INDEX_PER_INI 4
#ifdef CONFIG_MCL
#define MAX_BCN_PROBE_IN_SCAN_QUEUE 150
#else
#define MAX_BCN_PROBE_IN_SCAN_QUEUE 2000
#endif
#define WLAN_GET_BITS(_val, _index, _num_bits) \
(((_val) >> (_index)) & ((1 << (_num_bits)) - 1))

45
umac/scan/dispatcher/src/wlan_scan_tgt_api.c
Näytä tiedosto

@@ -257,29 +257,29 @@ QDF_STATUS tgt_scan_bcn_probe_rx_callback(struct wlan_objmgr_psoc *psoc,
enum mgmt_frame_type frm_type)
{
struct scheduler_msg msg = {0};
struct scan_bcn_probe_event *bcn;
struct scan_bcn_probe_event *bcn = NULL;
QDF_STATUS status;
uint32_t scan_queue_size = 0;
if ((frm_type != MGMT_PROBE_RESP) &&
(frm_type != MGMT_BEACON)) {
scm_err("frame is not beacon or probe resp");
qdf_nbuf_free(buf);
return QDF_STATUS_E_INVAL;
status = QDF_STATUS_E_INVAL;
goto free;
}
bcn = qdf_mem_malloc_atomic(sizeof(*bcn));
if (!bcn) {
scm_err("Failed to allocate memory for bcn");
qdf_nbuf_free(buf);
return QDF_STATUS_E_NOMEM;
status = QDF_STATUS_E_NOMEM;
goto free;
}
bcn->rx_data =
qdf_mem_malloc_atomic(sizeof(*rx_param));
if (!bcn->rx_data) {
scm_err("Failed to allocate memory for rx_data");
qdf_mem_free(bcn);
qdf_nbuf_free(buf);
return QDF_STATUS_E_NOMEM;
status = QDF_STATUS_E_NOMEM;
goto free;
}
if (frm_type == MGMT_PROBE_RESP)
@@ -287,13 +287,20 @@ QDF_STATUS tgt_scan_bcn_probe_rx_callback(struct wlan_objmgr_psoc *psoc,
else
bcn->frm_type = MGMT_SUBTYPE_BEACON;
/* Check if the beacon/probe frame can be posted in the scan queue */
status = scheduler_get_queue_size(QDF_MODULE_ID_SCAN, &scan_queue_size);
if (!QDF_IS_STATUS_SUCCESS(status) ||
scan_queue_size > MAX_BCN_PROBE_IN_SCAN_QUEUE) {
scm_debug_rl("Dropping beacon/probe frame, queue size %d",
scan_queue_size);
status = QDF_STATUS_E_FAILURE;
goto free;
}
status = wlan_objmgr_psoc_try_get_ref(psoc, WLAN_SCAN_ID);
if (QDF_IS_STATUS_ERROR(status)) {
scm_info("unable to get reference");
qdf_mem_free(bcn->rx_data);
qdf_mem_free(bcn);
qdf_nbuf_free(buf);
return status;
goto free;
}
bcn->psoc = psoc;
@@ -306,13 +313,19 @@ QDF_STATUS tgt_scan_bcn_probe_rx_callback(struct wlan_objmgr_psoc *psoc,
status = scheduler_post_msg(QDF_MODULE_ID_SCAN, &msg);
if (!QDF_IS_STATUS_SUCCESS(status)) {
wlan_objmgr_psoc_release_ref(psoc, WLAN_SCAN_ID);
scm_err("failed to post to QDF_MODULE_ID_SCAN");
if (QDF_IS_STATUS_SUCCESS(status))
return status;
wlan_objmgr_psoc_release_ref(psoc, WLAN_SCAN_ID);
scm_err("failed to post to QDF_MODULE_ID_SCAN");
free:
if (bcn && bcn->rx_data)
qdf_mem_free(bcn->rx_data);
if (bcn)
qdf_mem_free(bcn);
if (buf)
qdf_nbuf_free(buf);
}
return status;
}