diff options
Diffstat (limited to 'net/sched/sch_gred.c')
| -rw-r--r-- | net/sched/sch_gred.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index 69f0fd45d4c3..079b0a4ea1c2 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -55,6 +55,7 @@ struct gred_sched { struct gred_sched_data *tab[MAX_DPs]; unsigned long flags; + u32 red_flags; u32 DPs; u32 def; struct red_parms wred_set; @@ -140,6 +141,11 @@ static inline void gred_store_wred_set(struct gred_sched *table, table->wred_set.qavg = q->parms.qavg; } +static inline int gred_use_ecn(struct gred_sched *t) +{ + return t->red_flags & TC_RED_ECN; +} + static int gred_enqueue(struct sk_buff *skb, struct Qdisc* sch) { struct gred_sched_data *q=NULL; @@ -198,13 +204,22 @@ static int gred_enqueue(struct sk_buff *skb, struct Qdisc* sch) case RED_PROB_MARK: sch->qstats.overlimits++; - q->stats.prob_drop++; - goto congestion_drop; + if (!gred_use_ecn(t) || !INET_ECN_set_ce(skb)) { + q->stats.prob_drop++; + goto congestion_drop; + } + + q->stats.prob_mark++; + break; case RED_HARD_MARK: sch->qstats.overlimits++; - q->stats.forced_drop++; - goto congestion_drop; + if (!gred_use_ecn(t) || !INET_ECN_set_ce(skb)) { + q->stats.forced_drop++; + goto congestion_drop; + } + q->stats.forced_mark++; + break; } if (q->backlog + skb->len <= q->limit) { @@ -348,6 +363,7 @@ static inline int gred_change_table_def(struct Qdisc *sch, struct rtattr *dps) sch_tree_lock(sch); table->DPs = sopt->DPs; table->def = sopt->def_DP; + table->red_flags = sopt->flags; /* * Every entry point to GRED is synchronized with the above code @@ -489,6 +505,7 @@ static int gred_dump(struct Qdisc *sch, struct sk_buff *skb) .DPs = table->DPs, .def_DP = table->def, .grio = gred_rio_mode(table), + .flags = table->red_flags, }; opts = RTA_NEST(skb, TCA_OPTIONS); |