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moved ETX storage variable from RPL to ds6-nbr

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This commit is contained in:
Joakim Eriksson 2014-10-20 16:15:20 +02:00
parent 72679a819b
commit 5be43c6f8d
5 changed files with 69 additions and 20 deletions
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32
core/net/rpl/rpl-mrhof.c
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@ -90,16 +90,22 @@ typedef uint16_t rpl_path_metric_t;
static rpl_path_metric_t
calculate_path_metric(rpl_parent_t *p)
{
uip_ds6_nbr_t *nbr;
if(p == NULL) {
return MAX_PATH_COST * RPL_DAG_MC_ETX_DIVISOR;
}
nbr = rpl_get_nbr(p);
if(nbr == NULL) {
return MAX_PATH_COST * RPL_DAG_MC_ETX_DIVISOR;
}
#if RPL_DAG_MC == RPL_DAG_MC_NONE
return p->rank + (uint16_t)p->link_metric;
{
return p->rank + (uint16_t)nbr->link_metric;
}
#elif RPL_DAG_MC == RPL_DAG_MC_ETX
return p->mc.obj.etx + (uint16_t)p->link_metric;
return p->mc.obj.etx + (uint16_t)nbr->link_metric;
#elif RPL_DAG_MC == RPL_DAG_MC_ENERGY
return p->mc.obj.energy.energy_est + (uint16_t)p->link_metric;
return p->mc.obj.energy.energy_est + (uint16_t)nbr->link_metric;
#else
#error "Unsupported RPL_DAG_MC configured. See rpl.h."
#endif /* RPL_DAG_MC */
@ -114,9 +120,17 @@ reset(rpl_dag_t *dag)
static void
neighbor_link_callback(rpl_parent_t *p, int status, int numtx)
{
uint16_t recorded_etx = p->link_metric;
uint16_t recorded_etx = 0;
uint16_t packet_etx = numtx * RPL_DAG_MC_ETX_DIVISOR;
uint16_t new_etx;
uip_ds6_nbr_t *nbr = NULL;
nbr = rpl_get_nbr(p);
if(nbr == NULL) {
/* No neighbor for this parent - something bad has occured!??? */
return;
}
recorded_etx = nbr->link_metric;
/* Do not penalize the ETX when collisions or transmission errors occur. */
if(status == MAC_TX_OK || status == MAC_TX_NOACK) {
@ -139,7 +153,8 @@ neighbor_link_callback(rpl_parent_t *p, int status, int numtx)
(unsigned)(recorded_etx / RPL_DAG_MC_ETX_DIVISOR),
(unsigned)(new_etx / RPL_DAG_MC_ETX_DIVISOR),
(unsigned)(packet_etx / RPL_DAG_MC_ETX_DIVISOR));
p->link_metric = new_etx;
/* update the link metric for this nbr */
nbr->link_metric = new_etx;
}
}
@ -148,14 +163,15 @@ calculate_rank(rpl_parent_t *p, rpl_rank_t base_rank)
{
rpl_rank_t new_rank;
rpl_rank_t rank_increase;
uip_ds6_nbr_t *nbr;
if(p == NULL) {
if(p == NULL || (nbr = rpl_get_nbr(p)) == NULL) {
if(base_rank == 0) {
return INFINITE_RANK;
}
rank_increase = RPL_INIT_LINK_METRIC * RPL_DAG_MC_ETX_DIVISOR;
} else {
rank_increase = p->link_metric;
rank_increase = nbr->link_metric;
if(base_rank == 0) {
base_rank = p->rank;
}