static void
minstrel_ht_update_rates(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
{
struct ieee80211_sta_rates *rates;
int i = 0;
rates = kzalloc(sizeof(*rates), GFP_ATOMIC);
if (!rates)
return;
/* Start with max_tp_rate[0] */
minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate[0]);
if (mp->hw->max_rates >= 3) {
/* At least 3 tx rates supported, use max_tp_rate[1] next */
minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_tp_rate[1]);
}
if (mp->hw->max_rates >= 2) {
/*
* At least 2 tx rates supported, use max_prob_rate next */
minstrel_ht_set_rate(mp, mi, rates, i++, mi->max_prob_rate);
}
rates->rate[i].idx = -1;
rate_control_set_rates(mp->hw, mi->sta, rates);
}
static void
minstrel_update_rates(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
{
struct ieee80211_sta_rates *ratetbl;
int i = 0;
ratetbl = kzalloc(sizeof(*ratetbl), GFP_ATOMIC);
if (!ratetbl)
return;
/* Start with max_tp_rate */
minstrel_set_rate(mi, ratetbl, i++, mi->max_tp_rate[0]);
if (mp->hw->max_rates >= 3) {
/* At least 3 tx rates supported, use max_tp_rate2 next */
minstrel_set_rate(mi, ratetbl, i++, mi->max_tp_rate[1]);
}
if (mp->hw->max_rates >= 2) {
/* At least 2 tx rates supported, use max_prob_rate next */
minstrel_set_rate(mi, ratetbl, i++, mi->max_prob_rate);
}
/* Use lowest rate last */
ratetbl->rate[i].idx = mi->lowest_rix;
ratetbl->rate[i].count = mp->max_retry;
ratetbl->rate[i].count_cts = mp->max_retry;
ratetbl->rate[i].count_rts = mp->max_retry;
rate_control_set_rates(mp->hw, mi->sta, ratetbl);
}
static void
indra_update_rates(struct indra_priv *ip, struct indra_sta_info *ii)
{
struct ieee80211_sta_rates *ratetbl;
unsigned int *found;
unsigned int *loss_min;
unsigned int **rates_min;
unsigned int rates[1];
unsigned int loss;
int i,j;
/* Allocate rate table */
ratetbl = kzalloc(sizeof(*ratetbl), GFP_ATOMIC);
if (!ratetbl)
return;
/* Before snr is initialized */
if (!ii->last_snr) {
/* Use lowest rate always */
ratetbl->rate[0].idx = ii->lowest_rix;
ratetbl->rate[0].count = ip->max_retry;
ratetbl->rate[0].count_cts = ip->max_retry;
ratetbl->rate[0].count_rts = ip->max_retry;
rate_control_set_rates(ip->hw, ii->sta, ratetbl);
return;
}
/* Allocate and initialize temporary arrays */
found = kzalloc(ip->max_retry*sizeof(*found),GFP_ATOMIC);
loss_min = kzalloc(ip->max_retry*sizeof(*loss_min),GFP_ATOMIC);
rates_min = kzalloc(ip->max_retry*sizeof(*rates_min),GFP_ATOMIC);
for (i = 0; i < ip->max_retry; i++) {
rates_min[i] = kzalloc(ip->max_retry*sizeof(*rates_min[i]),GFP_ATOMIC);
loss_min[i] = UINT_MAX;
}
printk("MICHELE: opt_started\n");
/* Optimization */
for (i = 0; i < ii->n_rates; i++) {
struct indra_rate *ir = &ii->r[i];
/* Check service time bound */
if (ir->attempts[0]>ip->st_deadline)
continue;
loss = ir->per_snr_map[ii->last_snr];
if (loss<=loss_min[0]) {
/* Minimal combination found */
found[0] = 1;
rates_min[0][0] = i+1;
loss_min[0] = loss;
}
/* Explore following stages */
rates[0] = i+1;
explore_stages(ip,ii,rates,i,found,rates_min,loss_min,2);
}
printk("MICHELE: opt_ended\n");
//printk("MICHELE: min_rate(1) = %u\n",rates_min[0][0]);
//printk("MICHELE: min_rate(2) = %u,%u\n",rates_min[1][0],rates_min[1][1]);
//printk("MICHELE: min_rate(3) = %u,%u,%u\n",rates_min[2][0],rates_min[2][1],rates_min[2][2]);
//printk("MICHELE: min_rate(4) = %u,%u,%u,%u\n",rates_min[3][0],rates_min[3][1],rates_min[3][2],rates_min[3][3]);
//printk("MICHELE: min_rate(5) = %u,%u,%u,%u,%u\n",rates_min[4][0],rates_min[4][1],rates_min[4][2],rates_min[4][3],rates_min[4][4]);
//printk("MICHELE: min_rate(6) = %u,%u,%u,%u,%u,%u\n",rates_min[5][0],rates_min[5][1],rates_min[5][2],rates_min[5][3],rates_min[5][4],rates_min[5][5]);
//printk("MICHELE: min_rate(7) = %u,%u,%u,%u,%u,%u,%u\n",rates_min[6][0],rates_min[6][1],rates_min[6][2],rates_min[6][3],rates_min[6][4],rates_min[6][5],rates_min[6][6]);
/* Save optimization results in ratetbl */
for (i = 0; i<ip->max_retry; i++) {
if (found[i] == 0)
break;
}
for (j = 0; j<i; j++) {
struct indra_rate *ir = &ii->r[rates_min[i-1][j]-1];
ratetbl->rate[j].idx = ir->rix;
ratetbl->rate[j].count = 1;
ratetbl->rate[j].count_cts = 1;
ratetbl->rate[j].count_rts = 1;
}
rate_control_set_rates(ip->hw, ii->sta, ratetbl);
/* Free memory */
kfree(found);
kfree(loss_min);
for (i = 0; i < ip->max_retry; i++) {
kfree(rates_min[i]);
}
kfree(rates_min);
}