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net/iface: Add PM suspend state statistics

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Counting how many times it went suspended, for how long on the last one
and on overage.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
This commit is contained in:
Tomasz Bursztyka 2020-04-01 10:21:48 +02:00 • committed by Jukka Rissanen
commit 00926e3899
5 changed files with 82 additions and 0 deletions
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24
include/net/net_stats.h
View file

@ -237,6 +237,18 @@ struct net_stats_tc {
} recv[NET_TC_RX_COUNT];
};
/**
* @brief Power management statistics
*/
struct net_stats_pm {
u64_t overall_suspend_time;
net_stats_t suspend_count;
u32_t last_suspend_time;
u32_t start_time;
};
/**
* @brief All network statistics in one struct.
*/
@ -308,6 +320,10 @@ struct net_stats {
/** Network packet RX time statistics */
struct net_stats_rx_time rx_time;
#endif
#if defined(CONFIG_NET_STATISTICS_POWER_MANAGEMENT)
struct net_stats_pm pm;
#endif
};
/**
@ -432,6 +448,7 @@ enum net_request_stats_cmd {
NET_REQUEST_STATS_CMD_GET_TCP,
NET_REQUEST_STATS_CMD_GET_ETHERNET,
NET_REQUEST_STATS_CMD_GET_PPP,
NET_REQUEST_STATS_CMD_GET_PM
};
#define NET_REQUEST_STATS_GET_ALL \
@ -512,6 +529,13 @@ NET_MGMT_DEFINE_REQUEST_HANDLER(NET_REQUEST_STATS_GET_PPP);
#endif /* CONFIG_NET_STATISTICS_USER_API */
#if defined(CONFIG_NET_STATISTICS_POWER_MANAGEMENT)
#define NET_REQUEST_STATS_GET_PM \
(_NET_STATS_BASE | NET_REQUEST_STATS_CMD_GET_PM)
NET_MGMT_DEFINE_REQUEST_HANDLER(NET_REQUEST_STATS_GET_PM);
#endif /* CONFIG_NET_STATISTICS_POWER_MANAGEMENT */
/**
* @}
*/

7
subsys/net/ip/Kconfig.stats
View file

@ -111,4 +111,11 @@ config NET_STATISTICS_ETHERNET_VENDOR
key-value pairs. Deciphering the information may require
vendor documentation.
config NET_STATISTICS_POWER_MANAGEMENT
bool "Power management statistics"
depends on NET_POWER_MANAGEMENT
help
This will provide how many time a network interface went
suspended, for how long the last time and on average.
endif # NET_STATISTICS

4
subsys/net/ip/net_if.c
View file

@ -3636,6 +3636,8 @@ int net_if_suspend(struct net_if *iface)
return -EALREADY;
}
net_stats_add_suspend_start_time(iface, k_cycle_get_32());
return 0;
}
@ -3647,6 +3649,8 @@ int net_if_resume(struct net_if *iface)
net_if_flag_clear(iface, NET_IF_SUSPENDED);
net_stats_add_suspend_end_time(iface, k_cycle_get_32());
return 0;
}

23
subsys/net/ip/net_stats.c
View file

@ -191,6 +191,18 @@ static inline void stats(struct net_if *iface)
ARG_UNUSED(i);
#endif /* NET_TC_COUNT > 1 */
#if defined(CONFIG_NET_STATISTICS_POWER_MANAGEMENT)
NET_INFO("Power management statistics:");
NET_INFO("Last suspend time: %u ms",
GET_STAT(iface, pm.last_suspend_time));
NET_INFO("Got suspended %d times",
GET_STAT(iface, pm.suspend_count));
NET_INFO("Average suspend time: %u ms",
(u32_t)(GET_STAT(iface, pm.overall_suspend_time) /
GET_STAT(iface, pm.suspend_count)));
NET_INFO("Total suspended time: %llu ms",
GET_STAT(iface, pm.overall_suspend_time));
#endif
next_print = curr + PRINT_STATISTICS_INTERVAL;
}
}
@ -284,6 +296,12 @@ static int net_stats_get(u32_t mgmt_request, struct net_if *iface,
len_chk = sizeof(struct net_stats_tcp);
src = GET_STAT_ADDR(iface, tcp);
break;
#endif
#if defined(CONFIG_NET_STATISTICS_POWER_MANAGEMENT)
case NET_REQUEST_STATS_GET_PM:
len_chk = sizeof(struct net_stats_pm);
src = GET_STAT_ADDR(iface, pm);
break;
#endif
}
@ -338,6 +356,11 @@ NET_MGMT_REGISTER_REQUEST_HANDLER(NET_REQUEST_STATS_GET_TCP,
net_stats_get);
#endif
#if defined(CONFIG_NET_STATISTICS_POWER_MANAGEMENT)
NET_MGMT_REGISTER_REQUEST_HANDLER(NET_REQUEST_STATS_GET_PM,
net_stats_get);
#endif
#endif /* CONFIG_NET_STATISTICS_USER_API */
void net_stats_reset(struct net_if *iface)

24
subsys/net/ip/net_stats.h
View file

@ -463,6 +463,30 @@ static inline void net_stats_update_tc_rx_time(struct net_if *iface,
#endif /* NET_PKT_RXTIME_STATS && NET_STATISTICS */
#endif /* NET_TC_COUNT > 1 */
#if defined(CONFIG_NET_STATISTICS_POWER_MANAGEMENT) \
&& defined(CONFIG_NET_STATISTICS) && defined(CONFIG_NET_NATIVE)
static inline void net_stats_add_suspend_start_time(struct net_if *iface,
u32_t time)
{
UPDATE_STAT(iface, stats.pm.start_time = time);
}
static inline void net_stats_add_suspend_end_time(struct net_if *iface,
u32_t time)
{
u32_t diff_time =
k_cyc_to_ms_floor32(time - GET_STAT(iface, pm.start_time));
UPDATE_STAT(iface, stats.pm.start_time = 0);
UPDATE_STAT(iface, stats.pm.last_suspend_time = diff_time);
UPDATE_STAT(iface, stats.pm.suspend_count++);
UPDATE_STAT(iface, stats.pm.overall_suspend_time += diff_time);
}
#else
#define net_stats_add_suspend_start_time(iface, time)
#define net_stats_add_suspend_end_time(iface, time)
#endif
#if defined(CONFIG_NET_STATISTICS_PERIODIC_OUTPUT) \
&& defined(CONFIG_NET_NATIVE)
/* A simple periodic statistic printer, used only in net core */