static int prio_offload(struct Qdisc *sch, struct tc_prio_qopt *qopt)
{
struct net_device *dev = qdisc_dev(sch);
struct tc_prio_qopt_offload opt = {
.handle = sch->handle,
.parent = sch->parent,
};
if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc)
return -EOPNOTSUPP;
if (qopt) {
opt.command = TC_PRIO_REPLACE;
opt.replace_params.bands = qopt->bands;
memcpy(&opt.replace_params.priomap, qopt->priomap,
TC_PRIO_MAX + 1);
opt.replace_params.qstats = &sch->qstats;
} else {
opt.command = TC_PRIO_DESTROY;
}
return dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_PRIO, &opt);
}
static void
prio_destroy(struct Qdisc *sch)
{
int prio;
struct prio_sched_data *q = qdisc_priv(sch);
tcf_block_put(q->block);
prio_offload(sch, NULL);
for (prio = 0; prio < q->bands; prio++)
qdisc_put(q->queues[prio]);
}
static void gred_offload(struct Qdisc *sch, enum tc_gred_command command)
{
struct gred_sched *table = qdisc_priv(sch);
struct net_device *dev = qdisc_dev(sch);
struct tc_gred_qopt_offload opt = {
.command = command,
.handle = sch->handle,
.parent = sch->parent,
};
if (!tc_can_offload(dev) || !dev->netdev_ops->ndo_setup_tc)
return;
if (command == TC_GRED_REPLACE) {
unsigned int i;
opt.set.grio_on = gred_rio_mode(table);
opt.set.wred_on = gred_wred_mode(table);
opt.set.dp_cnt = table->DPs;
opt.set.dp_def = table->def;
for (i = 0; i < table->DPs; i++) {
struct gred_sched_data *q = table->tab[i];
if (!q)
continue;
opt.set.tab[i].present = true;
opt.set.tab[i].limit = q->limit;
opt.set.tab[i].prio = q->prio;
opt.set.tab[i].min = q->parms.qth_min >> q->parms.Wlog;
opt.set.tab[i].max = q->parms.qth_max >> q->parms.Wlog;
opt.set.tab[i].is_ecn = gred_use_ecn(q);
opt.set.tab[i].is_harddrop = gred_use_harddrop(q);
opt.set.tab[i].probability = q->parms.max_P;
opt.set.tab[i].backlog = &q->backlog;
}
opt.set.qstats = &sch->qstats;
}
dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_QDISC_GRED, &opt);
}
