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authorVictor Nogueira <victor@mojatatu.com>2023-12-19 15:16:19 -0300
committerDavid S. Miller <davem@davemloft.net>2023-12-26 21:20:08 +0000
commit913b47d3424e7d99eaf34b798c47dfa840c64a08 (patch)
tree9bc8fe26272a2fb1d1ae0fe011c3367fceced8c0 /net/sched/sch_generic.c
parentb1dffcf0da221d1f9d8007dfa2a41a325921d7fa (diff)
net/sched: Introduce tc block netdev tracking infra
This commit makes tc blocks track which ports have been added to them. And, with that, we'll be able to use this new information to send packets to the block's ports. Which will be done in the patch #3 of this series. Suggested-by: Jiri Pirko <jiri@nvidia.com> Co-developed-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Co-developed-by: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Signed-off-by: Victor Nogueira <victor@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_generic.c')
-rw-r--r--net/sched/sch_generic.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 8dd0e5925342..e33568df97a5 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -1051,6 +1051,9 @@ static void qdisc_free_cb(struct rcu_head *head)
static void __qdisc_destroy(struct Qdisc *qdisc)
{
const struct Qdisc_ops *ops = qdisc->ops;
+ struct net_device *dev = qdisc_dev(qdisc);
+ const struct Qdisc_class_ops *cops;
+ struct tcf_block *block;
#ifdef CONFIG_NET_SCHED
qdisc_hash_del(qdisc);
@@ -1061,11 +1064,24 @@ static void __qdisc_destroy(struct Qdisc *qdisc)
qdisc_reset(qdisc);
+ cops = ops->cl_ops;
+ if (ops->ingress_block_get) {
+ block = cops->tcf_block(qdisc, TC_H_MIN_INGRESS, NULL);
+ if (block)
+ xa_erase(&block->ports, dev->ifindex);
+ }
+
+ if (ops->egress_block_get) {
+ block = cops->tcf_block(qdisc, TC_H_MIN_EGRESS, NULL);
+ if (block)
+ xa_erase(&block->ports, dev->ifindex);
+ }
+
if (ops->destroy)
ops->destroy(qdisc);
module_put(ops->owner);
- netdev_put(qdisc_dev(qdisc), &qdisc->dev_tracker);
+ netdev_put(dev, &qdisc->dev_tracker);
trace_qdisc_destroy(qdisc);