mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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104 lines
1.9 KiB
C
104 lines
1.9 KiB
C
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/*
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* Copyright 2005, Devicescape Software, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* If building without CONFIG_NET_SCHED we need a simple
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* fifo qdisc to install by default as the sub-qdisc.
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* This is a simple replacement for sch_fifo.
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*/
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#include <linux/config.h>
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#include <linux/version.h>
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#include <linux/netdevice.h>
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#include <net/ieee80211.h>
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#include "ieee80211_i.h"
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#include "wme.h"
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static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc* qd)
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{
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struct sk_buff_head *q = qdisc_priv(qd);
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if (skb_queue_len(q) > qd->dev->tx_queue_len) {
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qd->qstats.drops++;
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kfree_skb(skb);
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return NET_XMIT_DROP;
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}
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skb_queue_tail(q, skb);
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qd->q.qlen++;
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qd->bstats.bytes += skb->len;
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qd->bstats.packets++;
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return NET_XMIT_SUCCESS;
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}
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static int pfifo_requeue(struct sk_buff *skb, struct Qdisc* qd)
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{
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struct sk_buff_head *q = qdisc_priv(qd);
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skb_queue_head(q, skb);
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qd->q.qlen++;
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qd->bstats.bytes += skb->len;
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qd->bstats.packets++;
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return NET_XMIT_SUCCESS;
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}
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static struct sk_buff *pfifo_dequeue(struct Qdisc* qd)
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{
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struct sk_buff_head *q = qdisc_priv(qd);
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return skb_dequeue(q);
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}
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static int pfifo_init(struct Qdisc* qd, struct rtattr *opt)
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{
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struct sk_buff_head *q = qdisc_priv(qd);
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skb_queue_head_init(q);
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return 0;
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}
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static void pfifo_reset(struct Qdisc* qd)
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{
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struct sk_buff_head *q = qdisc_priv(qd);
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skb_queue_purge(q);
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qd->q.qlen = 0;
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}
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static int pfifo_dump(struct Qdisc *qd, struct sk_buff *skb)
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{
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return skb->len;
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}
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struct Qdisc_ops pfifo_qdisc_ops =
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{
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.next = NULL,
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.cl_ops = NULL,
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.id = "ieee80211_pfifo",
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.priv_size = sizeof(struct sk_buff_head),
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.enqueue = pfifo_enqueue,
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.dequeue = pfifo_dequeue,
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.requeue = pfifo_requeue,
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.drop = NULL,
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.init = pfifo_init,
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.reset = pfifo_reset,
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.destroy = NULL,
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.change = NULL,
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.dump = pfifo_dump,
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};
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