]> pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - net/sched/sch_cbq.c
r8169: make room for more phy init changes
[linux-2.6-omap-h63xx.git] / net / sched / sch_cbq.c
index dcd9c31dc3990ea533e029785282def16d7e070c..4de3744e65c35cdf688b1c134749535f42ca6e07 100644 (file)
  */
 
 #include <linux/module.h>
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
 #include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/if_ether.h>
-#include <linux/inet.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/notifier.h>
-#include <net/ip.h>
-#include <net/netlink.h>
-#include <net/route.h>
 #include <linux/skbuff.h>
-#include <net/sock.h>
+#include <net/netlink.h>
 #include <net/pkt_sched.h>
 
 
@@ -98,7 +82,7 @@ struct cbq_class
        unsigned char           priority2;      /* priority to be used after overlimit */
        unsigned char           ewma_log;       /* time constant for idle time calculation */
        unsigned char           ovl_strategy;
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        unsigned char           police;
 #endif
 
@@ -148,7 +132,6 @@ struct cbq_class
        struct gnet_stats_basic bstats;
        struct gnet_stats_queue qstats;
        struct gnet_stats_rate_est rate_est;
-       spinlock_t              *stats_lock;
        struct tc_cbq_xstats    xstats;
 
        struct tcf_proto        *filter_list;
@@ -171,7 +154,7 @@ struct cbq_sched_data
        struct cbq_class        *active[TC_CBQ_MAXPRIO+1];      /* List of all classes
                                                                   with backlog */
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        struct cbq_class        *rx_class;
 #endif
        struct cbq_class        *tx_class;
@@ -192,7 +175,7 @@ struct cbq_sched_data
 };
 
 
-#define L2T(cl,len)    ((cl)->R_tab->data[(len)>>(cl)->R_tab->rate.cell_log])
+#define L2T(cl,len)    qdisc_l2t((cl)->R_tab,len)
 
 
 static __inline__ unsigned cbq_hash(u32 h)
@@ -213,7 +196,7 @@ cbq_class_lookup(struct cbq_sched_data *q, u32 classid)
        return NULL;
 }
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
 
 static struct cbq_class *
 cbq_reclassify(struct sk_buff *skb, struct cbq_class *this)
@@ -264,7 +247,8 @@ cbq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
                /*
                 * Step 2+n. Apply classifier.
                 */
-               if (!head->filter_list || (result = tc_classify(skb, head->filter_list, &res)) < 0)
+               if (!head->filter_list ||
+                   (result = tc_classify_compat(skb, head->filter_list, &res)) < 0)
                        goto fallback;
 
                if ((cl = (void*)res.class) == NULL) {
@@ -284,15 +268,8 @@ cbq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
                        *qerr = NET_XMIT_SUCCESS;
                case TC_ACT_SHOT:
                        return NULL;
-               }
-#elif defined(CONFIG_NET_CLS_POLICE)
-               switch (result) {
-               case TC_POLICE_RECLASSIFY:
+               case TC_ACT_RECLASSIFY:
                        return cbq_reclassify(skb, cl);
-               case TC_POLICE_SHOT:
-                       return NULL;
-               default:
-                       break;
                }
 #endif
                if (cl->level == 0)
@@ -385,12 +362,12 @@ cbq_mark_toplevel(struct cbq_sched_data *q, struct cbq_class *cl)
                psched_time_t now;
                psched_tdiff_t incr;
 
-               PSCHED_GET_TIME(now);
-               incr = PSCHED_TDIFF(now, q->now_rt);
-               PSCHED_TADD2(q->now, incr, now);
+               now = psched_get_time();
+               incr = now - q->now_rt;
+               now = q->now + incr;
 
                do {
-                       if (PSCHED_TLESS(cl->undertime, now)) {
+                       if (cl->undertime < now) {
                                q->toplevel = cl->level;
                                return;
                        }
@@ -403,10 +380,10 @@ cbq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 {
        struct cbq_sched_data *q = qdisc_priv(sch);
        int len = skb->len;
-       int ret;
+       int uninitialized_var(ret);
        struct cbq_class *cl = cbq_classify(skb, sch, &ret);
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        q->rx_class = cl;
 #endif
        if (cl == NULL) {
@@ -416,7 +393,7 @@ cbq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
                return ret;
        }
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        cl->q->__parent = sch;
 #endif
        if ((ret = cl->q->enqueue(skb, cl->q)) == NET_XMIT_SUCCESS) {
@@ -451,7 +428,7 @@ cbq_requeue(struct sk_buff *skb, struct Qdisc *sch)
 
        cbq_mark_toplevel(q, cl);
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        q->rx_class = cl;
        cl->q->__parent = sch;
 #endif
@@ -474,7 +451,7 @@ cbq_requeue(struct sk_buff *skb, struct Qdisc *sch)
 static void cbq_ovl_classic(struct cbq_class *cl)
 {
        struct cbq_sched_data *q = qdisc_priv(cl->qdisc);
-       psched_tdiff_t delay = PSCHED_TDIFF(cl->undertime, q->now);
+       psched_tdiff_t delay = cl->undertime - q->now;
 
        if (!cl->delayed) {
                delay += cl->offtime;
@@ -492,7 +469,7 @@ static void cbq_ovl_classic(struct cbq_class *cl)
                        cl->avgidle = cl->minidle;
                if (delay <= 0)
                        delay = 1;
-               PSCHED_TADD2(q->now, delay, cl->undertime);
+               cl->undertime = q->now + delay;
 
                cl->xstats.overactions++;
                cl->delayed = 1;
@@ -509,7 +486,7 @@ static void cbq_ovl_classic(struct cbq_class *cl)
                psched_tdiff_t base_delay = q->wd_expires;
 
                for (b = cl->borrow; b; b = b->borrow) {
-                       delay = PSCHED_TDIFF(b->undertime, q->now);
+                       delay = b->undertime - q->now;
                        if (delay < base_delay) {
                                if (delay <= 0)
                                        delay = 1;
@@ -547,7 +524,7 @@ static void cbq_ovl_rclassic(struct cbq_class *cl)
 static void cbq_ovl_delay(struct cbq_class *cl)
 {
        struct cbq_sched_data *q = qdisc_priv(cl->qdisc);
-       psched_tdiff_t delay = PSCHED_TDIFF(cl->undertime, q->now);
+       psched_tdiff_t delay = cl->undertime - q->now;
 
        if (!cl->delayed) {
                psched_time_t sched = q->now;
@@ -558,7 +535,7 @@ static void cbq_ovl_delay(struct cbq_class *cl)
                        delay -= (-cl->avgidle) - ((-cl->avgidle) >> cl->ewma_log);
                if (cl->avgidle < cl->minidle)
                        cl->avgidle = cl->minidle;
-               PSCHED_TADD2(q->now, delay, cl->undertime);
+               cl->undertime = q->now + delay;
 
                if (delay > 0) {
                        sched += delay + cl->penalty;
@@ -654,7 +631,7 @@ static enum hrtimer_restart cbq_undelay(struct hrtimer *timer)
        psched_tdiff_t delay = 0;
        unsigned pmask;
 
-       PSCHED_GET_TIME(now);
+       now = psched_get_time();
 
        pmask = q->pmask;
        q->pmask = 0;
@@ -686,9 +663,7 @@ static enum hrtimer_restart cbq_undelay(struct hrtimer *timer)
        return HRTIMER_NORESTART;
 }
 
-
-#ifdef CONFIG_NET_CLS_POLICE
-
+#ifdef CONFIG_NET_CLS_ACT
 static int cbq_reshape_fail(struct sk_buff *skb, struct Qdisc *child)
 {
        int len = skb->len;
@@ -738,7 +713,7 @@ cbq_update_toplevel(struct cbq_sched_data *q, struct cbq_class *cl,
        if (cl && q->toplevel >= borrowed->level) {
                if (cl->q->q.qlen > 1) {
                        do {
-                               if (PSCHED_IS_PASTPERFECT(borrowed->undertime)) {
+                               if (borrowed->undertime == PSCHED_PASTPERFECT) {
                                        q->toplevel = borrowed->level;
                                        return;
                                }
@@ -776,7 +751,7 @@ cbq_update(struct cbq_sched_data *q)
                         idle = (now - last) - last_pktlen/rate
                 */
 
-               idle = PSCHED_TDIFF(q->now, cl->last);
+               idle = q->now - cl->last;
                if ((unsigned long)idle > 128*1024*1024) {
                        avgidle = cl->maxidle;
                } else {
@@ -820,13 +795,11 @@ cbq_update(struct cbq_sched_data *q)
                        idle -= L2T(&q->link, len);
                        idle += L2T(cl, len);
 
-                       PSCHED_AUDIT_TDIFF(idle);
-
-                       PSCHED_TADD2(q->now, idle, cl->undertime);
+                       cl->undertime = q->now + idle;
                } else {
                        /* Underlimit */
 
-                       PSCHED_SET_PASTPERFECT(cl->undertime);
+                       cl->undertime = PSCHED_PASTPERFECT;
                        if (avgidle > cl->maxidle)
                                cl->avgidle = cl->maxidle;
                        else
@@ -847,8 +820,7 @@ cbq_under_limit(struct cbq_class *cl)
        if (cl->tparent == NULL)
                return cl;
 
-       if (PSCHED_IS_PASTPERFECT(cl->undertime) ||
-           !PSCHED_TLESS(q->now, cl->undertime)) {
+       if (cl->undertime == PSCHED_PASTPERFECT || q->now >= cl->undertime) {
                cl->delayed = 0;
                return cl;
        }
@@ -871,8 +843,7 @@ cbq_under_limit(struct cbq_class *cl)
                }
                if (cl->level > q->toplevel)
                        return NULL;
-       } while (!PSCHED_IS_PASTPERFECT(cl->undertime) &&
-                PSCHED_TLESS(q->now, cl->undertime));
+       } while (cl->undertime != PSCHED_PASTPERFECT && q->now < cl->undertime);
 
        cl->delayed = 0;
        return cl;
@@ -1007,8 +978,8 @@ cbq_dequeue(struct Qdisc *sch)
        psched_time_t now;
        psched_tdiff_t incr;
 
-       PSCHED_GET_TIME(now);
-       incr = PSCHED_TDIFF(now, q->now_rt);
+       now = psched_get_time();
+       incr = now - q->now_rt;
 
        if (q->tx_class) {
                psched_tdiff_t incr2;
@@ -1020,12 +991,12 @@ cbq_dequeue(struct Qdisc *sch)
                   cbq_time = max(real_time, work);
                 */
                incr2 = L2T(&q->link, q->tx_len);
-               PSCHED_TADD(q->now, incr2);
+               q->now += incr2;
                cbq_update(q);
                if ((incr -= incr2) < 0)
                        incr = 0;
        }
-       PSCHED_TADD(q->now, incr);
+       q->now += incr;
        q->now_rt = now;
 
        for (;;) {
@@ -1057,11 +1028,11 @@ cbq_dequeue(struct Qdisc *sch)
                */
 
                if (q->toplevel == TC_CBQ_MAXLEVEL &&
-                   PSCHED_IS_PASTPERFECT(q->link.undertime))
+                   q->link.undertime == PSCHED_PASTPERFECT)
                        break;
 
                q->toplevel = TC_CBQ_MAXLEVEL;
-               PSCHED_SET_PASTPERFECT(q->link.undertime);
+               q->link.undertime = PSCHED_PASTPERFECT;
        }
 
        /* No packets in scheduler or nobody wants to give them to us :-(
@@ -1281,7 +1252,7 @@ cbq_reset(struct Qdisc* sch)
        qdisc_watchdog_cancel(&q->watchdog);
        hrtimer_cancel(&q->delay_timer);
        q->toplevel = TC_CBQ_MAXLEVEL;
-       PSCHED_GET_TIME(q->now);
+       q->now = psched_get_time();
        q->now_rt = q->now;
 
        for (prio = 0; prio <= TC_CBQ_MAXPRIO; prio++)
@@ -1292,7 +1263,7 @@ cbq_reset(struct Qdisc* sch)
                        qdisc_reset(cl->q);
 
                        cl->next_alive = NULL;
-                       PSCHED_SET_PASTPERFECT(cl->undertime);
+                       cl->undertime = PSCHED_PASTPERFECT;
                        cl->avgidle = cl->maxidle;
                        cl->deficit = cl->quantum;
                        cl->cpriority = cl->priority;
@@ -1385,7 +1356,7 @@ static int cbq_set_overlimit(struct cbq_class *cl, struct tc_cbq_ovl *ovl)
        return 0;
 }
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
 static int cbq_set_police(struct cbq_class *cl, struct tc_cbq_police *p)
 {
        cl->police = p->police;
@@ -1446,13 +1417,12 @@ static int cbq_init(struct Qdisc *sch, struct rtattr *opt)
        q->link.ewma_log = TC_CBQ_DEF_EWMA;
        q->link.avpkt = q->link.allot/2;
        q->link.minidle = -0x7FFFFFFF;
-       q->link.stats_lock = &sch->dev->queue_lock;
 
        qdisc_watchdog_init(&q->watchdog, sch);
        hrtimer_init(&q->delay_timer, CLOCK_MONOTONIC, HRTIMER_MODE_ABS);
        q->delay_timer.function = cbq_undelay;
        q->toplevel = TC_CBQ_MAXLEVEL;
-       PSCHED_GET_TIME(q->now);
+       q->now = psched_get_time();
        q->now_rt = q->now;
 
        cbq_link_class(&q->link);
@@ -1554,7 +1524,7 @@ rtattr_failure:
        return -1;
 }
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
 static __inline__ int cbq_dump_police(struct sk_buff *skb, struct cbq_class *cl)
 {
        unsigned char *b = skb_tail_pointer(skb);
@@ -1580,7 +1550,7 @@ static int cbq_dump_attr(struct sk_buff *skb, struct cbq_class *cl)
            cbq_dump_rate(skb, cl) < 0 ||
            cbq_dump_wrr(skb, cl) < 0 ||
            cbq_dump_ovl(skb, cl) < 0 ||
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
            cbq_dump_police(skb, cl) < 0 ||
 #endif
            cbq_dump_fopt(skb, cl) < 0)
@@ -1653,13 +1623,11 @@ cbq_dump_class_stats(struct Qdisc *sch, unsigned long arg,
        cl->xstats.avgidle = cl->avgidle;
        cl->xstats.undertime = 0;
 
-       if (!PSCHED_IS_PASTPERFECT(cl->undertime))
-               cl->xstats.undertime = PSCHED_TDIFF(cl->undertime, q->now);
+       if (cl->undertime != PSCHED_PASTPERFECT)
+               cl->xstats.undertime = cl->undertime - q->now;
 
        if (gnet_stats_copy_basic(d, &cl->bstats) < 0 ||
-#ifdef CONFIG_NET_ESTIMATOR
            gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 ||
-#endif
            gnet_stats_copy_queue(d, &cl->qstats) < 0)
                return -1;
 
@@ -1677,7 +1645,7 @@ static int cbq_graft(struct Qdisc *sch, unsigned long arg, struct Qdisc *new,
                                                     cl->classid)) == NULL)
                                return -ENOBUFS;
                } else {
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
                        if (cl->police == TC_POLICE_RECLASSIFY)
                                new->reshape_fail = cbq_reshape_fail;
 #endif
@@ -1721,28 +1689,16 @@ static unsigned long cbq_get(struct Qdisc *sch, u32 classid)
        return 0;
 }
 
-static void cbq_destroy_filters(struct cbq_class *cl)
-{
-       struct tcf_proto *tp;
-
-       while ((tp = cl->filter_list) != NULL) {
-               cl->filter_list = tp->next;
-               tcf_destroy(tp);
-       }
-}
-
 static void cbq_destroy_class(struct Qdisc *sch, struct cbq_class *cl)
 {
        struct cbq_sched_data *q = qdisc_priv(sch);
 
        BUG_TRAP(!cl->filters);
 
-       cbq_destroy_filters(cl);
+       tcf_destroy_chain(cl->filter_list);
        qdisc_destroy(cl->q);
        qdisc_put_rtab(cl->R_tab);
-#ifdef CONFIG_NET_ESTIMATOR
        gen_kill_estimator(&cl->bstats, &cl->rate_est);
-#endif
        if (cl != &q->link)
                kfree(cl);
 }
@@ -1754,7 +1710,7 @@ cbq_destroy(struct Qdisc* sch)
        struct cbq_class *cl;
        unsigned h;
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        q->rx_class = NULL;
 #endif
        /*
@@ -1762,10 +1718,12 @@ cbq_destroy(struct Qdisc* sch)
         * classes from root to leafs which means that filters can still
         * be bound to classes which have been destroyed already. --TGR '04
         */
-       for (h = 0; h < 16; h++)
-               for (cl = q->classes[h]; cl; cl = cl->next)
-                       cbq_destroy_filters(cl);
-
+       for (h = 0; h < 16; h++) {
+               for (cl = q->classes[h]; cl; cl = cl->next) {
+                       tcf_destroy_chain(cl->filter_list);
+                       cl->filter_list = NULL;
+               }
+       }
        for (h = 0; h < 16; h++) {
                struct cbq_class *next;
 
@@ -1781,7 +1739,7 @@ static void cbq_put(struct Qdisc *sch, unsigned long arg)
        struct cbq_class *cl = (struct cbq_class*)arg;
 
        if (--cl->refcnt == 0) {
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
                struct cbq_sched_data *q = qdisc_priv(sch);
 
                spin_lock_bh(&sch->dev->queue_lock);
@@ -1829,7 +1787,7 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
            RTA_PAYLOAD(tb[TCA_CBQ_WRROPT-1]) < sizeof(struct tc_cbq_wrropt))
                        return -EINVAL;
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        if (tb[TCA_CBQ_POLICE-1] &&
            RTA_PAYLOAD(tb[TCA_CBQ_POLICE-1]) < sizeof(struct tc_cbq_police))
                        return -EINVAL;
@@ -1872,7 +1830,7 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
                if (tb[TCA_CBQ_OVL_STRATEGY-1])
                        cbq_set_overlimit(cl, RTA_DATA(tb[TCA_CBQ_OVL_STRATEGY-1]));
 
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
                if (tb[TCA_CBQ_POLICE-1])
                        cbq_set_police(cl, RTA_DATA(tb[TCA_CBQ_POLICE-1]));
 #endif
@@ -1885,11 +1843,10 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
 
                sch_tree_unlock(sch);
 
-#ifdef CONFIG_NET_ESTIMATOR
                if (tca[TCA_RATE-1])
                        gen_replace_estimator(&cl->bstats, &cl->rate_est,
-                               cl->stats_lock, tca[TCA_RATE-1]);
-#endif
+                                             &sch->dev->queue_lock,
+                                             tca[TCA_RATE-1]);
                return 0;
        }
 
@@ -1947,7 +1904,6 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
        cl->allot = parent->allot;
        cl->quantum = cl->allot;
        cl->weight = cl->R_tab->rate.rate;
-       cl->stats_lock = &sch->dev->queue_lock;
 
        sch_tree_lock(sch);
        cbq_link_class(cl);
@@ -1967,7 +1923,7 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
        cl->overlimit = cbq_ovl_classic;
        if (tb[TCA_CBQ_OVL_STRATEGY-1])
                cbq_set_overlimit(cl, RTA_DATA(tb[TCA_CBQ_OVL_STRATEGY-1]));
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        if (tb[TCA_CBQ_POLICE-1])
                cbq_set_police(cl, RTA_DATA(tb[TCA_CBQ_POLICE-1]));
 #endif
@@ -1975,11 +1931,9 @@ cbq_change_class(struct Qdisc *sch, u32 classid, u32 parentid, struct rtattr **t
                cbq_set_fopt(cl, RTA_DATA(tb[TCA_CBQ_FOPT-1]));
        sch_tree_unlock(sch);
 
-#ifdef CONFIG_NET_ESTIMATOR
        if (tca[TCA_RATE-1])
                gen_new_estimator(&cl->bstats, &cl->rate_est,
-                       cl->stats_lock, tca[TCA_RATE-1]);
-#endif
+                                 &sch->dev->queue_lock, tca[TCA_RATE-1]);
 
        *arg = (unsigned long)cl;
        return 0;
@@ -2013,7 +1967,7 @@ static int cbq_delete(struct Qdisc *sch, unsigned long arg)
                q->tx_class = NULL;
                q->tx_borrowed = NULL;
        }
-#ifdef CONFIG_NET_CLS_POLICE
+#ifdef CONFIG_NET_CLS_ACT
        if (q->rx_class == cl)
                q->rx_class = NULL;
 #endif