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lwip:optimization dhcp coarse timer

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This commit is contained in:
xueyunfei
2023-02-09 11:58:33 +08:00
parent dc4c9c087f
commit b5e8c68b59
3 changed files with 37 additions and 1 deletions
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8
components/lwip/Kconfig
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@ -247,6 +247,14 @@ menu "LWIP"
server. Last valid DHCP configuration is stored in nvs and restored after reset/power-up. If IP is still server. Last valid DHCP configuration is stored in nvs and restored after reset/power-up. If IP is still
available, there is no need for sending discovery message to DHCP server and save some time. available, there is no need for sending discovery message to DHCP server and save some time.
config LWIP_DHCP_COARSE_TIMER_SECS
int "DHCP coarse timer interval(s)"
default 1
range 1 10
help
Set DHCP coarse interval in seconds.
A higher value will be less precise but cost less power consumption.
menu "DHCP server" menu "DHCP server"
config LWIP_DHCPS config LWIP_DHCPS

2
components/lwip/lwip

Submodule components/lwip/lwip updated: 6fa02bd30d...a7abf28e02

28
components/lwip/port/esp32/include/lwipopts.h
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@ -44,6 +44,11 @@
#include "netif/dhcp_state.h" #include "netif/dhcp_state.h"
#include "sntp/sntp_get_set_time.h" #include "sntp/sntp_get_set_time.h"
#ifdef __cplusplus
extern "C"
{
#endif
/* Enable all Espressif-only options */ /* Enable all Espressif-only options */
/* /*
@ -262,6 +267,25 @@
(uint16_t)(1 * 1000) : \ (uint16_t)(1 * 1000) : \
(uint16_t)(((tries) < 6 ? 1 << (tries) : 60) * 250)) (uint16_t)(((tries) < 6 ? 1 << (tries) : 60) * 250))
#define DHCP_COARSE_TIMER_SECS CONFIG_LWIP_DHCP_COARSE_TIMER_SECS
static inline uint32_t timeout_from_offered(uint32_t lease, uint32_t min)
{
uint32_t timeout = lease;
if (timeout == 0) {
timeout = min;
}
timeout = (timeout + DHCP_COARSE_TIMER_SECS - 1) / DHCP_COARSE_TIMER_SECS;
return timeout;
}
#define DHCP_CALC_TIMEOUT_FROM_OFFERED_T0_LEASE(dhcp) \
timeout_from_offered((dhcp)->offered_t0_lease, 120)
#define DHCP_CALC_TIMEOUT_FROM_OFFERED_T1_RENEW(dhcp) \
timeout_from_offered((dhcp)->offered_t1_renew, (dhcp)->t0_timeout >> 1 /* 50% */)
#define DHCP_CALC_TIMEOUT_FROM_OFFERED_T2_REBIND(dhcp) \
timeout_from_offered((dhcp)->offered_t2_rebind, ((dhcp)->t0_timeout / 8) * 7 /* 87.5% */)
/** /**
* CONFIG_LWIP_DHCP_RESTORE_LAST_IP==1: Last valid IP address obtained from DHCP server * CONFIG_LWIP_DHCP_RESTORE_LAST_IP==1: Last valid IP address obtained from DHCP server
* is restored after reset/power-up. * is restored after reset/power-up.
@ -1074,4 +1098,8 @@
#define SOC_SEND_LOG //printf #define SOC_SEND_LOG //printf
#ifdef __cplusplus
}
#endif
#endif /* __LWIPOPTS_H__ */ #endif /* __LWIPOPTS_H__ */