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gnrc/sixlowpan: Configure queue size with exponent

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This changes the configuration macro to be the exponent of 2^n, as the
message queue size needs to be always power of 2.
This commit is contained in:
Leandro Lanzieri 2020-05-15 11:16:47 +02:00
parent 05962fe3ef
commit 375cad38df
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GPG Key ID: 13559905E2EBEAA5
3 changed files with 23 additions and 8 deletions
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17
sys/include/net/gnrc/sixlowpan/config.h
View File

@ -43,10 +43,14 @@ extern "C" {
#endif
/**
* @brief Default message queue size to use for the 6LoWPAN thread.
* @brief Default message queue size to use for the 6LoWPAN thread (as
* exponent of 2^n).
*
* As the queue size ALWAYS needs to be power of two, this option represents the
* exponent of 2^n, which will be used as the size of the queue.
*/
#ifndef CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE
#define CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE (8U)
#ifndef CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE_EXP
#define CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE_EXP (3U)
#endif
/**
@ -307,6 +311,13 @@ extern "C" {
#endif
/** @} */
/**
* @brief Message queue size to use for the 6LoWPAN thread.
*/
#ifndef GNRC_SIXLOWPAN_MSG_QUEUE_SIZE
#define GNRC_SIXLOWPAN_MSG_QUEUE_SIZE (1 << CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE_EXP)
#endif
#ifdef __cplusplus
}
#endif

10
sys/net/gnrc/network_layer/sixlowpan/Kconfig
View File

@ -16,8 +16,12 @@ if KCONFIG_MODULE_GNRC_SIXLOWPAN
rsource "frag/Kconfig"
rsource "nd/Kconfig"
config GNRC_SIXLOWPAN_MSG_QUEUE_SIZE
int "Message queue size for the 6LoWPAN thread"
default 8
config GNRC_SIXLOWPAN_MSG_QUEUE_SIZE_EXP
int "Exponent for the message queue size for the 6LoWPAN thread (as 2^n)"
default 3
help
As the queue size ALWAYS needs to be power of two, this option
represents the exponent of 2^n, which will be used as the size of
the queue.
endif # KCONFIG_MODULE_GNRC_SIXLOWPAN

4
sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c
View File

@ -308,12 +308,12 @@ static void _send(gnrc_pktsnip_t *pkt)
static void *_event_loop(void *args)
{
msg_t msg, reply, msg_q[CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE];
msg_t msg, reply, msg_q[GNRC_SIXLOWPAN_MSG_QUEUE_SIZE];
gnrc_netreg_entry_t me_reg = GNRC_NETREG_ENTRY_INIT_PID(GNRC_NETREG_DEMUX_CTX_ALL,
sched_active_pid);
(void)args;
msg_init_queue(msg_q, CONFIG_GNRC_SIXLOWPAN_MSG_QUEUE_SIZE);
msg_init_queue(msg_q, GNRC_SIXLOWPAN_MSG_QUEUE_SIZE);
/* register interest in all 6LoWPAN packets */
gnrc_netreg_register(GNRC_NETTYPE_SIXLOWPAN, &me_reg);