samsung-sm8650/android_kernel_samsung_sm8650-modules
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qcacmn: Add timer to flush out log buffers periodically

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Add timer to flush out log buffers periodically. Add command to set the
time period value.

Change-Id: I8e796a9bc7caac2661d00852420dd5fa66f5bca5
CRs-Fixed: 2296362
This commit is contained in:
Adil Saeed Musthafa
2018-08-07 09:39:20 -07:00
committed by nshrivas
parent eeeeaded77
commit 12205b544b
4 changed files with 163 additions and 3 deletions
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80
utils/logging/src/wlan_logging_sock_svc.c
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@@ -38,6 +38,8 @@
#include <qdf_time.h>
#include <qdf_trace.h>
#include <qdf_mc_timer.h>
#include <qdf_timer.h>
#include <qdf_lock.h>
#include <wlan_ptt_sock_svc.h>
#include <host_diag_core_event.h>
#include "host_diag_core_log.h"
@@ -134,6 +136,7 @@ struct pkt_stats_msg {
struct sk_buff *skb;
};
#define MAX_FLUSH_TIMER_PERIOD_VALUE 3600000 /* maximum of 1 hour (in ms) */
struct wlan_logging {
/* Log Fatal and ERROR to console */
bool log_to_console;
@@ -171,6 +174,10 @@ struct wlan_logging {
unsigned int pkt_stat_drop_cnt;
spinlock_t pkt_stats_lock;
unsigned int pkt_stats_msg_idx;
qdf_timer_t flush_timer;
bool is_flush_timer_initialized;
uint32_t flush_timer_period;
qdf_spinlock_t flush_timer_lock;
};
static struct wlan_logging gwlan_logging;
@@ -744,6 +751,19 @@ static void send_flush_completion_to_user(uint8_t ring_id)
}
#endif
static void setup_flush_timer(void)
{
qdf_spin_lock(&gwlan_logging.flush_timer_lock);
if (!gwlan_logging.is_flush_timer_initialized ||
(gwlan_logging.flush_timer_period == 0)) {
qdf_spin_unlock(&gwlan_logging.flush_timer_lock);
return;
}
qdf_timer_mod(&gwlan_logging.flush_timer,
gwlan_logging.flush_timer_period);
qdf_spin_unlock(&gwlan_logging.flush_timer_lock);
}
/**
* wlan_logging_thread() - The WLAN Logger thread
* @Arg - pointer to the HDD context
@@ -757,6 +777,7 @@ static int wlan_logging_thread(void *Arg)
unsigned long flags;
while (!gwlan_logging.exit) {
setup_flush_timer();
ret_wait_status =
wait_event_interruptible(gwlan_logging.wait_queue,
(!list_empty
@@ -852,11 +873,54 @@ void wlan_logging_set_log_to_console(bool log_to_console)
gwlan_logging.log_to_console = log_to_console;
}
static void flush_log_buffers_timer(void *dummy)
{
wlan_flush_host_logs_for_fatal();
}
int wlan_logging_set_flush_timer(uint32_t milliseconds)
{
if (milliseconds > MAX_FLUSH_TIMER_PERIOD_VALUE) {
QDF_TRACE_ERROR(QDF_MODULE_ID_QDF,
"ERROR! value should be (0 - %d)\n",
MAX_FLUSH_TIMER_PERIOD_VALUE);
return -EINVAL;
}
if (!gwlan_logging.is_active) {
QDF_TRACE_ERROR(QDF_MODULE_ID_QDF,
"WLAN-Logging not active");
return -EINVAL;
}
qdf_spin_lock(&gwlan_logging.flush_timer_lock);
if (!gwlan_logging.is_flush_timer_initialized) {
qdf_spin_unlock(&gwlan_logging.flush_timer_lock);
return -EINVAL;
}
gwlan_logging.flush_timer_period = milliseconds;
if (milliseconds) {
qdf_timer_mod(&gwlan_logging.flush_timer,
gwlan_logging.flush_timer_period);
}
qdf_spin_unlock(&gwlan_logging.flush_timer_lock);
return 0;
}
static void flush_timer_init(void)
{
qdf_spinlock_create(&gwlan_logging.flush_timer_lock);
qdf_timer_init(NULL, &gwlan_logging.flush_timer,
flush_log_buffers_timer, NULL,
QDF_TIMER_TYPE_SW);
gwlan_logging.is_flush_timer_initialized = true;
gwlan_logging.flush_timer_period = 0;
}
int wlan_logging_sock_init_svc(void)
{
int i = 0, j, pkt_stats_size;
unsigned long irq_flag;
flush_timer_init();
spin_lock_init(&gwlan_logging.spin_lock);
spin_lock_init(&gwlan_logging.pkt_stats_lock);
@@ -961,6 +1025,16 @@ err1:
return -ENOMEM;
}
static void flush_timer_deinit(void)
{
gwlan_logging.is_flush_timer_initialized = false;
qdf_spin_lock(&gwlan_logging.flush_timer_lock);
qdf_timer_stop(&gwlan_logging.flush_timer);
qdf_timer_free(&gwlan_logging.flush_timer);
qdf_spin_unlock(&gwlan_logging.flush_timer_lock);
qdf_spinlock_destroy(&gwlan_logging.flush_timer_lock);
}
int wlan_logging_sock_deinit_svc(void)
{
unsigned long irq_flag;
@@ -1001,6 +1075,7 @@ int wlan_logging_sock_deinit_svc(void)
vfree(gpkt_stats_buffers);
gpkt_stats_buffers = NULL;
free_log_msg_buffer();
flush_timer_deinit();
return 0;
}
@@ -1060,8 +1135,9 @@ void wlan_flush_host_logs_for_fatal(void)
#ifdef CONFIG_MCL
if (cds_is_log_report_in_progress()) {
#endif
pr_info("%s:flush all host logs Setting HOST_LOG_POST_MASK\n",
__func__);
if (gwlan_logging.flush_timer_period == 0)
pr_info("%s:flush all host logs Setting HOST_LOG_POST_MASK\n",
__func__);
spin_lock_irqsave(&gwlan_logging.spin_lock, flags);
wlan_queue_logmsg_for_app();
spin_unlock_irqrestore(&gwlan_logging.spin_lock, flags);