145 lines
3.9 KiB
Diff
145 lines
3.9 KiB
Diff
--- a/net/sched/sch_generic.c
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+++ b/net/sched/sch_generic.c
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@@ -371,16 +371,50 @@ static const u8 prio2band[TC_PRIO_MAX+1]
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#define PFIFO_FAST_BANDS 3
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+struct pfifo_fast_sched_data {
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+ struct tcf_proto *filter_list;
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+ struct sk_buff_head list[PFIFO_FAST_BANDS];
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+};
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+
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static inline struct sk_buff_head *prio2list(struct sk_buff *skb,
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struct Qdisc *qdisc)
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{
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- struct sk_buff_head *list = qdisc_priv(qdisc);
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+ struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
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+ struct sk_buff_head *list = q->list;
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return list + prio2band[skb->priority & TC_PRIO_MAX];
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}
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+static int pfifo_fast_filter(struct sk_buff *skb, struct Qdisc* qdisc)
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+{
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+#ifdef CONFIG_NET_CLS_ACT
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+ struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
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+ int result = 0, ret = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
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+ struct tcf_result res;
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+
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+ if (q->filter_list != NULL)
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+ result = tc_classify(skb, q->filter_list, &res);
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+ if (result >= 0) {
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+ switch (result) {
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+ case TC_ACT_STOLEN:
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+ case TC_ACT_QUEUED:
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+ ret = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
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+ case TC_ACT_SHOT:
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+ kfree_skb(skb);
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+ return ret;
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+ }
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+ }
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+#endif
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+ return 0;
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+}
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+
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static int pfifo_fast_enqueue(struct sk_buff *skb, struct Qdisc* qdisc)
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{
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struct sk_buff_head *list = prio2list(skb, qdisc);
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+ int ret;
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+
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+ ret = pfifo_fast_filter(skb, qdisc);
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+ if (ret)
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+ return ret;
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if (skb_queue_len(list) < qdisc_dev(qdisc)->tx_queue_len) {
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qdisc->q.qlen++;
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@@ -392,8 +426,9 @@ static int pfifo_fast_enqueue(struct sk_
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static struct sk_buff *pfifo_fast_dequeue(struct Qdisc* qdisc)
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{
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+ struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
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+ struct sk_buff_head *list = q->list;
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int prio;
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- struct sk_buff_head *list = qdisc_priv(qdisc);
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for (prio = 0; prio < PFIFO_FAST_BANDS; prio++) {
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if (!skb_queue_empty(list + prio)) {
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@@ -420,8 +455,9 @@ static struct sk_buff *pfifo_fast_peek(s
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static void pfifo_fast_reset(struct Qdisc* qdisc)
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{
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+ struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
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+ struct sk_buff_head *list = q->list;
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int prio;
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- struct sk_buff_head *list = qdisc_priv(qdisc);
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for (prio = 0; prio < PFIFO_FAST_BANDS; prio++)
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__qdisc_reset_queue(qdisc, list + prio);
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@@ -444,8 +480,9 @@ nla_put_failure:
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static int pfifo_fast_init(struct Qdisc *qdisc, struct nlattr *opt)
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{
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+ struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
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+ struct sk_buff_head *list = q->list;
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int prio;
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- struct sk_buff_head *list = qdisc_priv(qdisc);
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for (prio = 0; prio < PFIFO_FAST_BANDS; prio++)
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skb_queue_head_init(list + prio);
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@@ -453,9 +490,36 @@ static int pfifo_fast_init(struct Qdisc
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return 0;
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}
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+static int pfifo_fast_change_class(struct Qdisc *qdisc, u32 classid, u32 parentid,
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+ struct nlattr **tca, unsigned long *arg)
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+{
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+ return -EOPNOTSUPP;
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+}
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+
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+static unsigned long pfifo_fast_get(struct Qdisc *qdisc, u32 classid)
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+{
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+ return 0;
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+}
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+
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+static struct tcf_proto **pfifo_fast_find_tcf(struct Qdisc *qdisc, unsigned long cl)
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+{
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+ struct pfifo_fast_sched_data *q = qdisc_priv(qdisc);
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+
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+ if (cl)
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+ return NULL;
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+ return &q->filter_list;
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+}
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+
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+static const struct Qdisc_class_ops pfifo_fast_class_ops = {
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+ .get = pfifo_fast_get,
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+ .change = pfifo_fast_change_class,
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+ .tcf_chain = pfifo_fast_find_tcf,
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+};
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+
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static struct Qdisc_ops pfifo_fast_ops __read_mostly = {
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.id = "pfifo_fast",
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- .priv_size = PFIFO_FAST_BANDS * sizeof(struct sk_buff_head),
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+ .cl_ops = &pfifo_fast_class_ops,
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+ .priv_size = sizeof(struct pfifo_fast_sched_data),
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.enqueue = pfifo_fast_enqueue,
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.dequeue = pfifo_fast_dequeue,
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.peek = pfifo_fast_peek,
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@@ -735,3 +799,18 @@ void dev_shutdown(struct net_device *dev
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shutdown_scheduler_queue(dev, &dev->rx_queue, &noop_qdisc);
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WARN_ON(timer_pending(&dev->watchdog_timer));
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}
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+
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+#ifdef CONFIG_NET_SCHED
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+static int __init sch_generic_init(void)
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+{
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+ return register_qdisc(&pfifo_fast_ops);
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+}
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+
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+static void __exit sch_generic_exit(void)
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+{
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+ unregister_qdisc(&pfifo_fast_ops);
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+}
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+
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+module_init(sch_generic_init)
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+module_exit(sch_generic_exit)
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+#endif
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