static int prio_dump_offload(struct Qdisc *sch)
{
struct tc_prio_qopt_offload hw_stats = {
.command = TC_PRIO_STATS,
.handle = sch->handle,
.parent = sch->parent,
{
.stats = {
.bstats = &sch->bstats,
.qstats = &sch->qstats,
},
},
};
return qdisc_offload_dump_helper(sch, TC_SETUP_QDISC_PRIO, &hw_stats);
}
static int gred_offload_dump_stats(struct Qdisc *sch)
{
struct gred_sched *table = qdisc_priv(sch);
struct tc_gred_qopt_offload *hw_stats;
unsigned int i;
int ret;
hw_stats = kzalloc(sizeof(*hw_stats), GFP_KERNEL);
if (!hw_stats)
return -ENOMEM;
hw_stats->command = TC_GRED_STATS;
hw_stats->handle = sch->handle;
hw_stats->parent = sch->parent;
for (i = 0; i < MAX_DPs; i++)
if (table->tab[i])
hw_stats->stats.xstats[i] = &table->tab[i]->stats;
ret = qdisc_offload_dump_helper(sch, TC_SETUP_QDISC_GRED, hw_stats);
/* Even if driver returns failure adjust the stats - in case offload
* ended but driver still wants to adjust the values.
*/
for (i = 0; i < MAX_DPs; i++) {
if (!table->tab[i])
continue;
table->tab[i]->packetsin += hw_stats->stats.bstats[i].packets;
table->tab[i]->bytesin += hw_stats->stats.bstats[i].bytes;
table->tab[i]->backlog += hw_stats->stats.qstats[i].backlog;
_bstats_update(&sch->bstats,
hw_stats->stats.bstats[i].bytes,
hw_stats->stats.bstats[i].packets);
sch->qstats.qlen += hw_stats->stats.qstats[i].qlen;
sch->qstats.backlog += hw_stats->stats.qstats[i].backlog;
sch->qstats.drops += hw_stats->stats.qstats[i].drops;
sch->qstats.requeues += hw_stats->stats.qstats[i].requeues;
sch->qstats.overlimits += hw_stats->stats.qstats[i].overlimits;
}
kfree(hw_stats);
return ret;
}
