[PKT_SCHED]: GRED: Transform grio to GRED_RIO_MODE

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>

1 files changed, 28 insertions, 8 deletions

diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c
index 4ced47bf6089..db594b46a52f 100644
--- a/net/sched/sch_gred.c
+++ b/net/sched/sch_gred.c
@@ -93,6 +93,7 @@ struct gred_sched_data
 
 enum {
         GRED_WRED_MODE = 1,
+        GRED_RIO_MODE,
 };
 
 struct gred_sched
@@ -102,7 +103,6 @@ struct gred_sched
         u32             DPs;   
         u32             def; 
         u8              initd; 
-        u8              grio; 
 };
 
 static inline int gred_wred_mode(struct gred_sched *table)
@@ -120,6 +120,21 @@ static inline void gred_disable_wred_mode(struct gred_sched *table)
         __clear_bit(GRED_WRED_MODE, &table->flags);
 }
 
+static inline int gred_rio_mode(struct gred_sched *table)
+{
+        return test_bit(GRED_RIO_MODE, &table->flags);
+}
+
+static inline void gred_enable_rio_mode(struct gred_sched *table)
+{
+        __set_bit(GRED_RIO_MODE, &table->flags);
+}
+
+static inline void gred_disable_rio_mode(struct gred_sched *table)
+{
+        __clear_bit(GRED_RIO_MODE, &table->flags);
+}
+
 static inline int gred_wred_mode_check(struct Qdisc *sch)
 {
         struct gred_sched *table = qdisc_priv(sch);
@@ -173,7 +188,7 @@ gred_enqueue(struct sk_buff *skb, struct Qdisc* sch)
             "general backlog %d\n",skb->tc_index&0xf,sch->handle,q->backlog,
             sch->qstats.backlog);
         /* sum up all the qaves of prios <= to ours to get the new qave*/
-        if (!gred_wred_mode(t) && t->grio) {
+        if (!gred_wred_mode(t) && gred_rio_mode(t)) {
                 for (i=0;i<t->DPs;i++) {
                         if ((!t->tab[i]) || (i==q->DP)) 
                                 continue; 
@@ -386,12 +401,12 @@ static int gred_change(struct Qdisc *sch, struct rtattr *opt)
                 table->def=sopt->def_DP; 
 
                 if (sopt->grio) {
-                        table->grio = 1;
+                        gred_enable_rio_mode(table);
                         gred_disable_wred_mode(table);
                         if (gred_wred_mode_check(sch))
                                 gred_enable_wred_mode(table);
                 } else {
-                        table->grio = 0;
+                        gred_disable_rio_mode(table);
                         gred_disable_wred_mode(table);
                 }
 
@@ -423,7 +438,7 @@ static int gred_change(struct Qdisc *sch, struct rtattr *opt)
         }
         q= table->tab[ctl->DP]; 
 
-        if (table->grio) {
+        if (gred_rio_mode(table)) {
                 if (ctl->prio <=0) {
                         if (table->def && table->tab[table->def]) {
                                 DPRINTK("\nGRED: DP %u does not have a prio"
@@ -463,7 +478,7 @@ static int gred_change(struct Qdisc *sch, struct rtattr *opt)
         PSCHED_SET_PASTPERFECT(q->qidlestart);
         memcpy(q->Stab, RTA_DATA(tb[TCA_GRED_STAB-1]), 256);
 
-        if (table->grio) {
+        if (gred_rio_mode(table)) {
                 gred_disable_wred_mode(table);
                 if (gred_wred_mode_check(sch))
                         gred_enable_wred_mode(table);
@@ -496,7 +511,7 @@ static int gred_change(struct Qdisc *sch, struct rtattr *opt)
                 q->qth_min = ctl->qth_min<<ctl->Wlog;
                 q->qth_max = ctl->qth_max<<ctl->Wlog;
 
-                if (table->grio)
+                if (gred_rio_mode(table))
                         q->prio=table->tab[ctl->DP]->prio;
                 else
                         q->prio=8;
@@ -528,7 +543,12 @@ static int gred_init(struct Qdisc *sch, struct rtattr *opt)
                 sopt = RTA_DATA(tb2[TCA_GRED_DPS-1]);
                 table->DPs=sopt->DPs;   
                 table->def=sopt->def_DP; 
-                table->grio=sopt->grio; 
+
+                if (sopt->grio)
+                        gred_enable_rio_mode(table);
+                else
+                        gred_disable_rio_mode(table);
+
                 table->initd=0;
                 return 0;
         }