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| author |   Michal Kazior <michal.kazior@tieto.com> | 2016-04-22 14:15:58 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2016-04-25 16:44:27 -0400 |
| commit | 79bdc4c862af7cf11a135a6fdf8093622043c862 (patch) | |
| tree | 0ef5bf77549832f368878079900f597a3ee76fa4 /net/sched/sch_fq_codel.c | |
| parent | macsec: Convert to using IFF_NO_QUEUE (diff) | |
| download | linux-dev-79bdc4c862af7cf11a135a6fdf8093622043c862.tar.xz linux-dev-79bdc4c862af7cf11a135a6fdf8093622043c862.zip | |
codel: generalize the implementation
This strips out qdisc specific bits from the code
and makes it slightly more reusable. Codel will be
used by wireless/mac80211 in the future.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/sched/sch_fq_codel.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c index d3fc8f9dd3d4..dcf7266e6901 100644 --- a/net/sched/sch_fq_codel.c +++ b/net/sched/sch_fq_codel.c @@ -220,8 +220,9 @@ static int fq_codel_enqueue(struct sk_buff *skb, struct Qdisc *sch) * to dequeue a packet from queue. Note: backlog is handled in * codel, we dont need to reduce it here. */ -static struct sk_buff *dequeue(struct codel_vars *vars, struct Qdisc *sch) +static struct sk_buff *dequeue_func(struct codel_vars *vars, void *ctx) { + struct Qdisc *sch = ctx; struct fq_codel_sched_data *q = qdisc_priv(sch); struct fq_codel_flow *flow; struct sk_buff *skb = NULL; @@ -231,10 +232,18 @@ static struct sk_buff *dequeue(struct codel_vars *vars, struct Qdisc *sch) skb = dequeue_head(flow); q->backlogs[flow - q->flows] -= qdisc_pkt_len(skb); sch->q.qlen--; + sch->qstats.backlog -= qdisc_pkt_len(skb); } return skb; } +static void drop_func(struct sk_buff *skb, void *ctx) +{ + struct Qdisc *sch = ctx; + + qdisc_drop(skb, sch); +} + static struct sk_buff *fq_codel_dequeue(struct Qdisc *sch) { struct fq_codel_sched_data *q = qdisc_priv(sch); @@ -263,8 +272,9 @@ begin: prev_ecn_mark = q->cstats.ecn_mark; prev_backlog = sch->qstats.backlog; - skb = codel_dequeue(sch, &q->cparams, &flow->cvars, &q->cstats, - dequeue); + skb = codel_dequeue(sch, &sch->qstats.backlog, &q->cparams, + &flow->cvars, &q->cstats, qdisc_pkt_len, + codel_get_enqueue_time, drop_func, dequeue_func); flow->dropped += q->cstats.drop_count - prev_drop_count; flow->dropped += q->cstats.ecn_mark - prev_ecn_mark; @@ -423,9 +433,10 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt) q->perturbation = prandom_u32(); INIT_LIST_HEAD(&q->new_flows); INIT_LIST_HEAD(&q->old_flows); - codel_params_init(&q->cparams, sch); + codel_params_init(&q->cparams); codel_stats_init(&q->cstats); q->cparams.ecn = true; + q->cparams.mtu = psched_mtu(qdisc_dev(sch)); if (opt) { int err = fq_codel_change(sch, opt); |