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net: rework setup_tc ndo op to consume general tc operand

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This patch updates setup_tc so we can pass additional parameters into
the ndo op in a generic way. To do this we provide structured union
and type flag.

This lets each classifier and qdisc provide its own set of attributes
without having to add new ndo ops or grow the signature of the
callback.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend
2016-02-16 21:16:43 -08:00
committed by David S. Miller
parent e4c6734eaa
commit 16e5cc6471
14 changed files with 78 additions and 37 deletions
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9
net/sched/sch_mqprio.c
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@@ -28,6 +28,7 @@ static void mqprio_destroy(struct Qdisc *sch)
{
struct net_device *dev = qdisc_dev(sch);
struct mqprio_sched *priv = qdisc_priv(sch);
struct tc_to_netdev tc = {.type = TC_SETUP_MQPRIO};
unsigned int ntx;
if (priv->qdiscs) {
@@ -39,7 +40,7 @@ static void mqprio_destroy(struct Qdisc *sch)
}
if (priv->hw_owned && dev->netdev_ops->ndo_setup_tc)
dev->netdev_ops->ndo_setup_tc(dev, sch->handle, 0);
dev->netdev_ops->ndo_setup_tc(dev, sch->handle, 0, &tc);
else
netdev_set_num_tc(dev, 0);
}
@@ -140,9 +141,11 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt)
* supplied and verified mapping
*/
if (qopt->hw) {
struct tc_to_netdev tc = {.type = TC_SETUP_MQPRIO,
.tc = qopt->num_tc};
priv->hw_owned = 1;
err = dev->netdev_ops->ndo_setup_tc(dev, sch->handle,
qopt->num_tc);
err = dev->netdev_ops->ndo_setup_tc(dev, sch->handle, 0, &tc);
if (err)
goto err;
} else {