#define HTB_HSIZE 16 /* classid hash size */
#define HTB_EWMAC 2 /* rate average over HTB_EWMAC*HTB_HSIZE sec */
-#undef HTB_DEBUG /* compile debugging support (activated by tc tool) */
#define HTB_RATECM 1 /* whether to use rate computer */
#define HTB_HYSTERESIS 1/* whether to use mode hysteresis for speedup */
#define HTB_QLOCK(S) spin_lock_bh(&(S)->dev->queue_lock)
#error "Mismatched sch_htb.c and pkt_sch.h"
#endif
-/* debugging support; S is subsystem, these are defined:
- 0 - netlink messages
- 1 - enqueue
- 2 - drop & requeue
- 3 - dequeue main
- 4 - dequeue one prio DRR part
- 5 - dequeue class accounting
- 6 - class overlimit status computation
- 7 - hint tree
- 8 - event queue
- 10 - rate estimator
- 11 - classifier
- 12 - fast dequeue cache
-
- L is level; 0 = none, 1 = basic info, 2 = detailed, 3 = full
- q->debug uint32 contains 16 2-bit fields one for subsystem starting
- from LSB
- */
-#ifdef HTB_DEBUG
-#define HTB_DBG_COND(S,L) (((q->debug>>(2*S))&3) >= L)
-#define HTB_DBG(S,L,FMT,ARG...) if (HTB_DBG_COND(S,L)) \
- printk(KERN_DEBUG FMT,##ARG)
-#define HTB_CHCL(cl) BUG_TRAP((cl)->magic == HTB_CMAGIC)
-#define HTB_PASSQ q,
-#define HTB_ARGQ struct htb_sched *q,
-#define static
-#undef __inline__
-#define __inline__
-#undef inline
-#define inline
-#define HTB_CMAGIC 0xFEFAFEF1
-#define htb_safe_rb_erase(N,R) do { BUG_TRAP((N)->rb_color != -1); \
- if ((N)->rb_color == -1) break; \
- rb_erase(N,R); \
- (N)->rb_color = -1; } while (0)
-#else
-#define HTB_DBG_COND(S,L) (0)
-#define HTB_DBG(S,L,FMT,ARG...)
-#define HTB_PASSQ
-#define HTB_ARGQ
-#define HTB_CHCL(cl)
-#define htb_safe_rb_erase(N,R) rb_erase(N,R)
-#endif
-
-
/* used internaly to keep status of single class */
enum htb_cmode {
HTB_CANT_SEND, /* class can't send and can't borrow */
/* interior & leaf nodes; props specific to leaves are marked L: */
struct htb_class
{
-#ifdef HTB_DEBUG
- unsigned magic;
-#endif
/* general class parameters */
u32 classid;
struct gnet_stats_basic bstats;
int nwc_hit; /* this to disable mindelay complaint in dequeue */
int defcls; /* class where unclassified flows go to */
- u32 debug; /* subsystem debug levels */
/* filters for qdisc itself */
struct tcf_proto *filter_list;
return cl;
}
-#ifdef HTB_DEBUG
-static void htb_next_rb_node(struct rb_node **n);
-#define HTB_DUMTREE(root,memb) if(root) { \
- struct rb_node *n = (root)->rb_node; \
- while (n->rb_left) n = n->rb_left; \
- while (n) { \
- struct htb_class *cl = rb_entry(n, struct htb_class, memb); \
- printk(" %x",cl->classid); htb_next_rb_node (&n); \
- } }
-
-static void htb_debug_dump (struct htb_sched *q)
-{
- int i,p;
- printk(KERN_DEBUG "htb*g j=%lu lj=%lu\n",jiffies,q->jiffies);
- /* rows */
- for (i=TC_HTB_MAXDEPTH-1;i>=0;i--) {
- printk(KERN_DEBUG "htb*r%d m=%x",i,q->row_mask[i]);
- for (p=0;p<TC_HTB_NUMPRIO;p++) {
- if (!q->row[i][p].rb_node) continue;
- printk(" p%d:",p);
- HTB_DUMTREE(q->row[i]+p,node[p]);
- }
- printk("\n");
- }
- /* classes */
- for (i = 0; i < HTB_HSIZE; i++) {
- struct list_head *l;
- list_for_each (l,q->hash+i) {
- struct htb_class *cl = list_entry(l,struct htb_class,hlist);
- long diff = PSCHED_TDIFF_SAFE(q->now, cl->t_c, (u32)cl->mbuffer);
- printk(KERN_DEBUG "htb*c%x m=%d t=%ld c=%ld pq=%lu df=%ld ql=%d "
- "pa=%x f:",
- cl->classid,cl->cmode,cl->tokens,cl->ctokens,
- cl->pq_node.rb_color==-1?0:cl->pq_key,diff,
- cl->level?0:cl->un.leaf.q->q.qlen,cl->prio_activity);
- if (cl->level)
- for (p=0;p<TC_HTB_NUMPRIO;p++) {
- if (!cl->un.inner.feed[p].rb_node) continue;
- printk(" p%d a=%x:",p,cl->un.inner.ptr[p]?rb_entry(cl->un.inner.ptr[p], struct htb_class,node[p])->classid:0);
- HTB_DUMTREE(cl->un.inner.feed+p,node[p]);
- }
- printk("\n");
- }
- }
-}
-#endif
/**
* htb_add_to_id_tree - adds class to the round robin list
*
* Routine adds class to the list (actually tree) sorted by classid.
* Make sure that class is not already on such list for given prio.
*/
-static void htb_add_to_id_tree (HTB_ARGQ struct rb_root *root,
+static void htb_add_to_id_tree (struct rb_root *root,
struct htb_class *cl,int prio)
{
struct rb_node **p = &root->rb_node, *parent = NULL;
- HTB_DBG(7,3,"htb_add_id_tree cl=%X prio=%d\n",cl->classid,prio);
-#ifdef HTB_DEBUG
- if (cl->node[prio].rb_color != -1) { BUG_TRAP(0); return; }
- HTB_CHCL(cl);
- if (*p) {
- struct htb_class *x = rb_entry(*p,struct htb_class,node[prio]);
- HTB_CHCL(x);
- }
-#endif
+
while (*p) {
struct htb_class *c; parent = *p;
c = rb_entry(parent, struct htb_class, node[prio]);
- HTB_CHCL(c);
+
if (cl->classid > c->classid)
p = &parent->rb_right;
else
* already in the queue.
*/
static void htb_add_to_wait_tree (struct htb_sched *q,
- struct htb_class *cl,long delay,int debug_hint)
+ struct htb_class *cl,long delay)
{
struct rb_node **p = &q->wait_pq[cl->level].rb_node, *parent = NULL;
- HTB_DBG(7,3,"htb_add_wt cl=%X key=%lu\n",cl->classid,cl->pq_key);
-#ifdef HTB_DEBUG
- if (cl->pq_node.rb_color != -1) { BUG_TRAP(0); return; }
- HTB_CHCL(cl);
- if ((delay <= 0 || delay > cl->mbuffer) && net_ratelimit())
- printk(KERN_ERR "HTB: suspicious delay in wait_tree d=%ld cl=%X h=%d\n",delay,cl->classid,debug_hint);
-#endif
+
cl->pq_key = q->jiffies + PSCHED_US2JIFFIE(delay);
if (cl->pq_key == q->jiffies)
cl->pq_key++;
static inline void htb_add_class_to_row(struct htb_sched *q,
struct htb_class *cl,int mask)
{
- HTB_DBG(7,2,"htb_addrow cl=%X mask=%X rmask=%X\n",
- cl->classid,mask,q->row_mask[cl->level]);
- HTB_CHCL(cl);
q->row_mask[cl->level] |= mask;
while (mask) {
int prio = ffz(~mask);
mask &= ~(1 << prio);
- htb_add_to_id_tree(HTB_PASSQ q->row[cl->level]+prio,cl,prio);
+ htb_add_to_id_tree(q->row[cl->level]+prio,cl,prio);
}
}
struct htb_class *cl,int mask)
{
int m = 0;
- HTB_CHCL(cl);
+
while (mask) {
int prio = ffz(~mask);
mask &= ~(1 << prio);
if (q->ptr[cl->level][prio] == cl->node+prio)
htb_next_rb_node(q->ptr[cl->level]+prio);
- htb_safe_rb_erase(cl->node + prio,q->row[cl->level]+prio);
+ rb_erase(cl->node + prio,q->row[cl->level]+prio);
if (!q->row[cl->level][prio].rb_node)
m |= 1 << prio;
}
- HTB_DBG(7,2,"htb_delrow cl=%X mask=%X rmask=%X maskdel=%X\n",
- cl->classid,mask,q->row_mask[cl->level],m);
q->row_mask[cl->level] &= ~m;
}
{
struct htb_class *p = cl->parent;
long m,mask = cl->prio_activity;
- HTB_DBG(7,2,"htb_act_prios cl=%X mask=%lX cmode=%d\n",cl->classid,mask,cl->cmode);
- HTB_CHCL(cl);
while (cl->cmode == HTB_MAY_BORROW && p && mask) {
- HTB_CHCL(p);
+
m = mask; while (m) {
int prio = ffz(~m);
m &= ~(1 << prio);
reset bit in mask as parent is already ok */
mask &= ~(1 << prio);
- htb_add_to_id_tree(HTB_PASSQ p->un.inner.feed+prio,cl,prio);
+ htb_add_to_id_tree(p->un.inner.feed+prio,cl,prio);
}
- HTB_DBG(7,3,"htb_act_pr_aft p=%X pact=%X mask=%lX pmode=%d\n",
- p->classid,p->prio_activity,mask,p->cmode);
p->prio_activity |= mask;
cl = p; p = cl->parent;
- HTB_CHCL(cl);
+
}
if (cl->cmode == HTB_CAN_SEND && mask)
htb_add_class_to_row(q,cl,mask);
{
struct htb_class *p = cl->parent;
long m,mask = cl->prio_activity;
- HTB_DBG(7,2,"htb_deact_prios cl=%X mask=%lX cmode=%d\n",cl->classid,mask,cl->cmode);
- HTB_CHCL(cl);
+
while (cl->cmode == HTB_MAY_BORROW && p && mask) {
m = mask; mask = 0;
p->un.inner.ptr[prio] = NULL;
}
- htb_safe_rb_erase(cl->node + prio,p->un.inner.feed + prio);
+ rb_erase(cl->node + prio,p->un.inner.feed + prio);
if (!p->un.inner.feed[prio].rb_node)
mask |= 1 << prio;
}
- HTB_DBG(7,3,"htb_deact_pr_aft p=%X pact=%X mask=%lX pmode=%d\n",
- p->classid,p->prio_activity,mask,p->cmode);
+
p->prio_activity &= ~mask;
cl = p; p = cl->parent;
- HTB_CHCL(cl);
+
}
if (cl->cmode == HTB_CAN_SEND && mask)
htb_remove_class_from_row(q,cl,mask);
{
enum htb_cmode new_mode = htb_class_mode(cl,diff);
- HTB_CHCL(cl);
- HTB_DBG(7,1,"htb_chging_clmode %d->%d cl=%X\n",cl->cmode,new_mode,cl->classid);
if (new_mode == cl->cmode)
return;
static __inline__ void htb_activate(struct htb_sched *q,struct htb_class *cl)
{
BUG_TRAP(!cl->level && cl->un.leaf.q && cl->un.leaf.q->q.qlen);
- HTB_CHCL(cl);
+
if (!cl->prio_activity) {
cl->prio_activity = 1 << (cl->un.leaf.aprio = cl->un.leaf.prio);
htb_activate_prios(q,cl);
htb_deactivate(struct htb_sched *q,struct htb_class *cl)
{
BUG_TRAP(cl->prio_activity);
- HTB_CHCL(cl);
+
htb_deactivate_prios(q,cl);
cl->prio_activity = 0;
list_del_init(&cl->un.leaf.drop_list);
sch->q.qlen++;
sch->bstats.packets++; sch->bstats.bytes += skb->len;
- HTB_DBG(1,1,"htb_enq_ok cl=%X skb=%p\n",(cl && cl != HTB_DIRECT)?cl->classid:0,skb);
return NET_XMIT_SUCCESS;
}
sch->q.qlen++;
sch->qstats.requeues++;
- HTB_DBG(1,1,"htb_req_ok cl=%X skb=%p\n",(cl && cl != HTB_DIRECT)?cl->classid:0,skb);
return NET_XMIT_SUCCESS;
}
/* lock queue so that we can muck with it */
HTB_QLOCK(sch);
- HTB_DBG(10,1,"htb_rttmr j=%ld\n",jiffies);
q->rttim.expires = jiffies + HZ;
add_timer(&q->rttim);
q->recmp_bucket = 0;
list_for_each (p,q->hash+q->recmp_bucket) {
struct htb_class *cl = list_entry(p,struct htb_class,hlist);
- HTB_DBG(10,2,"htb_rttmr_cl cl=%X sbyte=%lu spkt=%lu\n",
- cl->classid,cl->sum_bytes,cl->sum_packets);
+
RT_GEN (cl->sum_bytes,cl->rate_bytes);
RT_GEN (cl->sum_packets,cl->rate_packets);
}
{
long toks,diff;
enum htb_cmode old_mode;
- HTB_DBG(5,1,"htb_chrg_cl cl=%X lev=%d len=%d\n",cl->classid,level,bytes);
#define HTB_ACCNT(T,B,R) toks = diff + cl->T; \
if (toks > cl->B) toks = cl->B; \
cl->T = toks
while (cl) {
- HTB_CHCL(cl);
diff = PSCHED_TDIFF_SAFE(q->now, cl->t_c, (u32)cl->mbuffer);
-#ifdef HTB_DEBUG
- if (diff > cl->mbuffer || diff < 0 || PSCHED_TLESS(q->now, cl->t_c)) {
- if (net_ratelimit())
- printk(KERN_ERR "HTB: bad diff in charge, cl=%X diff=%lX now=%Lu then=%Lu j=%lu\n",
- cl->classid, diff,
-#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
- q->now.tv_sec * 1000000ULL + q->now.tv_usec,
- cl->t_c.tv_sec * 1000000ULL + cl->t_c.tv_usec,
-#else
- (unsigned long long) q->now,
- (unsigned long long) cl->t_c,
-#endif
- q->jiffies);
- diff = 1000;
- }
-#endif
if (cl->level >= level) {
if (cl->level == level) cl->xstats.lends++;
HTB_ACCNT (tokens,buffer,rate);
}
HTB_ACCNT (ctokens,cbuffer,ceil);
cl->t_c = q->now;
- HTB_DBG(5,2,"htb_chrg_clp cl=%X diff=%ld tok=%ld ctok=%ld\n",cl->classid,diff,cl->tokens,cl->ctokens);
old_mode = cl->cmode; diff = 0;
htb_change_class_mode(q,cl,&diff);
if (old_mode != cl->cmode) {
if (old_mode != HTB_CAN_SEND)
- htb_safe_rb_erase(&cl->pq_node,q->wait_pq+cl->level);
+ rb_erase(&cl->pq_node,q->wait_pq+cl->level);
if (cl->cmode != HTB_CAN_SEND)
- htb_add_to_wait_tree (q,cl,diff,1);
+ htb_add_to_wait_tree (q,cl,diff);
}
#ifdef HTB_RATECM
static long htb_do_events(struct htb_sched *q,int level)
{
int i;
- HTB_DBG(8,1,"htb_do_events l=%d root=%p rmask=%X\n",
- level,q->wait_pq[level].rb_node,q->row_mask[level]);
+
for (i = 0; i < 500; i++) {
struct htb_class *cl;
long diff;
cl = rb_entry(p, struct htb_class, pq_node);
if (time_after(cl->pq_key, q->jiffies)) {
- HTB_DBG(8,3,"htb_do_ev_ret delay=%ld\n",cl->pq_key - q->jiffies);
return cl->pq_key - q->jiffies;
}
- htb_safe_rb_erase(p,q->wait_pq+level);
+ rb_erase(p,q->wait_pq+level);
diff = PSCHED_TDIFF_SAFE(q->now, cl->t_c, (u32)cl->mbuffer);
-#ifdef HTB_DEBUG
- if (diff > cl->mbuffer || diff < 0 || PSCHED_TLESS(q->now, cl->t_c)) {
- if (net_ratelimit())
- printk(KERN_ERR "HTB: bad diff in events, cl=%X diff=%lX now=%Lu then=%Lu j=%lu\n",
- cl->classid, diff,
-#ifdef CONFIG_NET_SCH_CLK_GETTIMEOFDAY
- q->now.tv_sec * 1000000ULL + q->now.tv_usec,
- cl->t_c.tv_sec * 1000000ULL + cl->t_c.tv_usec,
-#else
- (unsigned long long) q->now,
- (unsigned long long) cl->t_c,
-#endif
- q->jiffies);
- diff = 1000;
- }
-#endif
htb_change_class_mode(q,cl,&diff);
if (cl->cmode != HTB_CAN_SEND)
- htb_add_to_wait_tree (q,cl,diff,2);
+ htb_add_to_wait_tree (q,cl,diff);
}
if (net_ratelimit())
printk(KERN_WARNING "htb: too many events !\n");
* Find leaf where current feed pointers points to.
*/
static struct htb_class *
-htb_lookup_leaf(HTB_ARGQ struct rb_root *tree,int prio,struct rb_node **pptr,u32 *pid)
+htb_lookup_leaf(struct rb_root *tree,int prio,struct rb_node **pptr,u32 *pid)
{
int i;
struct {
sp->pid = pid;
for (i = 0; i < 65535; i++) {
- HTB_DBG(4,2,"htb_lleaf ptr=%p pid=%X\n",*sp->pptr,*sp->pid);
-
if (!*sp->pptr && *sp->pid) {
/* ptr was invalidated but id is valid - try to recover
the original or next ptr */
} else {
struct htb_class *cl;
cl = rb_entry(*sp->pptr,struct htb_class,node[prio]);
- HTB_CHCL(cl);
if (!cl->level)
return cl;
(++sp)->root = cl->un.inner.feed[prio].rb_node;
struct sk_buff *skb = NULL;
struct htb_class *cl,*start;
/* look initial class up in the row */
- start = cl = htb_lookup_leaf (HTB_PASSQ q->row[level]+prio,prio,
+ start = cl = htb_lookup_leaf (q->row[level]+prio,prio,
q->ptr[level]+prio,q->last_ptr_id[level]+prio);
do {
next:
BUG_TRAP(cl);
if (!cl) return NULL;
- HTB_DBG(4,1,"htb_deq_tr prio=%d lev=%d cl=%X defic=%d\n",
- prio,level,cl->classid,cl->un.leaf.deficit[level]);
/* class can be empty - it is unlikely but can be true if leaf
qdisc drops packets in enqueue routine or if someone used
if ((q->row_mask[level] & (1 << prio)) == 0)
return NULL;
- next = htb_lookup_leaf (HTB_PASSQ q->row[level]+prio,
+ next = htb_lookup_leaf (q->row[level]+prio,
prio,q->ptr[level]+prio,q->last_ptr_id[level]+prio);
if (cl == start) /* fix start if we just deleted it */
}
q->nwc_hit++;
htb_next_rb_node((level?cl->parent->un.inner.ptr:q->ptr[0])+prio);
- cl = htb_lookup_leaf (HTB_PASSQ q->row[level]+prio,prio,q->ptr[level]+prio,
+ cl = htb_lookup_leaf (q->row[level]+prio,prio,q->ptr[level]+prio,
q->last_ptr_id[level]+prio);
} while (cl != start);
if (likely(skb != NULL)) {
if ((cl->un.leaf.deficit[level] -= skb->len) < 0) {
- HTB_DBG(4,2,"htb_next_cl oldptr=%p quant_add=%d\n",
- level?cl->parent->un.inner.ptr[prio]:q->ptr[0][prio],cl->un.leaf.quantum);
cl->un.leaf.deficit[level] += cl->un.leaf.quantum;
htb_next_rb_node((level?cl->parent->un.inner.ptr:q->ptr[0])+prio);
}
mod_timer(&q->timer, q->jiffies + delay);
sch->flags |= TCQ_F_THROTTLED;
sch->qstats.overlimits++;
- HTB_DBG(3,1,"htb_deq t_delay=%ld\n",delay);
}
static struct sk_buff *htb_dequeue(struct Qdisc *sch)
struct htb_sched *q = qdisc_priv(sch);
int level;
long min_delay;
-#ifdef HTB_DEBUG
- int evs_used = 0;
-#endif
q->jiffies = jiffies;
- HTB_DBG(3,1,"htb_deq dircnt=%d qlen=%d\n",skb_queue_len(&q->direct_queue),
- sch->q.qlen);
/* try to dequeue direct packets as high prio (!) to minimize cpu work */
if ((skb = __skb_dequeue(&q->direct_queue)) != NULL) {
if (time_after_eq(q->jiffies, q->near_ev_cache[level])) {
delay = htb_do_events(q,level);
q->near_ev_cache[level] = q->jiffies + (delay ? delay : HZ);
-#ifdef HTB_DEBUG
- evs_used++;
-#endif
} else
delay = q->near_ev_cache[level] - q->jiffies;
}
}
}
-#ifdef HTB_DEBUG
- if (!q->nwc_hit && min_delay >= 10*HZ && net_ratelimit()) {
- if (min_delay == LONG_MAX) {
- printk(KERN_ERR "HTB: dequeue bug (%d,%lu,%lu), report it please !\n",
- evs_used,q->jiffies,jiffies);
- htb_debug_dump(q);
- } else
- printk(KERN_WARNING "HTB: mindelay=%ld, some class has "
- "too small rate\n",min_delay);
- }
-#endif
htb_delay_by (sch,min_delay > 5*HZ ? 5*HZ : min_delay);
fin:
- HTB_DBG(3,1,"htb_deq_end %s j=%lu skb=%p\n",sch->dev->name,q->jiffies,skb);
return skb;
}
{
struct htb_sched *q = qdisc_priv(sch);
int i;
- HTB_DBG(0,1,"htb_reset sch=%p, handle=%X\n",sch,sch->handle);
for (i = 0; i < HTB_HSIZE; i++) {
struct list_head *p;
}
cl->prio_activity = 0;
cl->cmode = HTB_CAN_SEND;
-#ifdef HTB_DEBUG
- cl->pq_node.rb_color = -1;
- memset(cl->node,255,sizeof(cl->node));
-#endif
}
}
struct rtattr *tb[TCA_HTB_INIT];
struct tc_htb_glob *gopt;
int i;
-#ifdef HTB_DEBUG
- printk(KERN_INFO "HTB init, kernel part version %d.%d\n",
- HTB_VER >> 16,HTB_VER & 0xffff);
-#endif
if (!opt || rtattr_parse_nested(tb, TCA_HTB_INIT, opt) ||
tb[TCA_HTB_INIT-1] == NULL ||
RTA_PAYLOAD(tb[TCA_HTB_INIT-1]) < sizeof(*gopt)) {
HTB_VER >> 16,HTB_VER & 0xffff,gopt->version);
return -EINVAL;
}
- q->debug = gopt->debug;
- HTB_DBG(0,1,"htb_init sch=%p handle=%X r2q=%d\n",sch,sch->handle,gopt->rate2quantum);
INIT_LIST_HEAD(&q->root);
for (i = 0; i < HTB_HSIZE; i++)
unsigned char *b = skb->tail;
struct rtattr *rta;
struct tc_htb_glob gopt;
- HTB_DBG(0,1,"htb_dump sch=%p, handle=%X\n",sch,sch->handle);
HTB_QLOCK(sch);
gopt.direct_pkts = q->direct_pkts;
-#ifdef HTB_DEBUG
- if (HTB_DBG_COND(0,2))
- htb_debug_dump(q);
-#endif
gopt.version = HTB_VER;
gopt.rate2quantum = q->rate2quantum;
gopt.defcls = q->defcls;
- gopt.debug = q->debug;
+ gopt.debug = 0;
rta = (struct rtattr*)b;
RTA_PUT(skb, TCA_OPTIONS, 0, NULL);
RTA_PUT(skb, TCA_HTB_INIT, sizeof(gopt), &gopt);
static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
struct sk_buff *skb, struct tcmsg *tcm)
{
-#ifdef HTB_DEBUG
- struct htb_sched *q = qdisc_priv(sch);
-#endif
struct htb_class *cl = (struct htb_class*)arg;
unsigned char *b = skb->tail;
struct rtattr *rta;
struct tc_htb_opt opt;
- HTB_DBG(0,1,"htb_dump_class handle=%X clid=%X\n",sch->handle,cl->classid);
-
HTB_QLOCK(sch);
tcm->tcm_parent = cl->parent ? cl->parent->classid : TC_H_ROOT;
tcm->tcm_handle = cl->classid;
static unsigned long htb_get(struct Qdisc *sch, u32 classid)
{
-#ifdef HTB_DEBUG
- struct htb_sched *q = qdisc_priv(sch);
-#endif
struct htb_class *cl = htb_find(classid,sch);
- HTB_DBG(0,1,"htb_get clid=%X q=%p cl=%p ref=%d\n",classid,q,cl,cl?cl->refcnt:0);
if (cl)
cl->refcnt++;
return (unsigned long)cl;
static void htb_destroy_class(struct Qdisc* sch,struct htb_class *cl)
{
struct htb_sched *q = qdisc_priv(sch);
- HTB_DBG(0,1,"htb_destrycls clid=%X ref=%d\n", cl?cl->classid:0,cl?cl->refcnt:0);
if (!cl->level) {
BUG_TRAP(cl->un.leaf.q);
sch->q.qlen -= cl->un.leaf.q->q.qlen;
htb_deactivate (q,cl);
if (cl->cmode != HTB_CAN_SEND)
- htb_safe_rb_erase(&cl->pq_node,q->wait_pq+cl->level);
+ rb_erase(&cl->pq_node,q->wait_pq+cl->level);
kfree(cl);
}
static void htb_destroy(struct Qdisc* sch)
{
struct htb_sched *q = qdisc_priv(sch);
- HTB_DBG(0,1,"htb_destroy q=%p\n",q);
del_timer_sync (&q->timer);
#ifdef HTB_RATECM
{
struct htb_sched *q = qdisc_priv(sch);
struct htb_class *cl = (struct htb_class*)arg;
- HTB_DBG(0,1,"htb_delete q=%p cl=%X ref=%d\n",q,cl?cl->classid:0,cl?cl->refcnt:0);
// TODO: why don't allow to delete subtree ? references ? does
// tc subsys quarantee us that in htb_destroy it holds no class
static void htb_put(struct Qdisc *sch, unsigned long arg)
{
-#ifdef HTB_DEBUG
- struct htb_sched *q = qdisc_priv(sch);
-#endif
struct htb_class *cl = (struct htb_class*)arg;
- HTB_DBG(0,1,"htb_put q=%p cl=%X ref=%d\n",q,cl?cl->classid:0,cl?cl->refcnt:0);
if (--cl->refcnt == 0)
htb_destroy_class(sch,cl);
parent = parentid == TC_H_ROOT ? NULL : htb_find (parentid,sch);
hopt = RTA_DATA(tb[TCA_HTB_PARMS-1]);
- HTB_DBG(0,1,"htb_chg cl=%p(%X), clid=%X, parid=%X, opt/prio=%d, rate=%u, buff=%d, quant=%d\n", cl,cl?cl->classid:0,classid,parentid,(int)hopt->prio,hopt->rate.rate,hopt->buffer,hopt->quantum);
+
rtab = qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB-1]);
ctab = qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB-1]);
if (!rtab || !ctab) goto failure;
INIT_LIST_HEAD(&cl->hlist);
INIT_LIST_HEAD(&cl->children);
INIT_LIST_HEAD(&cl->un.leaf.drop_list);
-#ifdef HTB_DEBUG
- cl->magic = HTB_CMAGIC;
-#endif
/* create leaf qdisc early because it uses kmalloc(GFP_KERNEL)
so that can't be used inside of sch_tree_lock
/* remove from evt list because of level change */
if (parent->cmode != HTB_CAN_SEND) {
- htb_safe_rb_erase(&parent->pq_node,q->wait_pq /*+0*/);
+ rb_erase(&parent->pq_node,q->wait_pq);
parent->cmode = HTB_CAN_SEND;
}
parent->level = (parent->parent ? parent->parent->level
/* attach to the hash list and parent's family */
list_add_tail(&cl->hlist, q->hash+htb_hash(classid));
list_add_tail(&cl->sibling, parent ? &parent->children : &q->root);
-#ifdef HTB_DEBUG
- {
- int i;
- for (i = 0; i < TC_HTB_NUMPRIO; i++) cl->node[i].rb_color = -1;
- cl->pq_node.rb_color = -1;
- }
-#endif
} else sch_tree_lock(sch);
/* it used to be a nasty bug here, we have to check that node
struct htb_sched *q = qdisc_priv(sch);
struct htb_class *cl = (struct htb_class *)arg;
struct tcf_proto **fl = cl ? &cl->filter_list : &q->filter_list;
- HTB_DBG(0,2,"htb_tcf q=%p clid=%X fref=%d fl=%p\n",q,cl?cl->classid:0,cl?cl->filter_cnt:q->filter_cnt,*fl);
+
return fl;
}
{
struct htb_sched *q = qdisc_priv(sch);
struct htb_class *cl = htb_find (classid,sch);
- HTB_DBG(0,2,"htb_bind q=%p clid=%X cl=%p fref=%d\n",q,classid,cl,cl?cl->filter_cnt:q->filter_cnt);
+
/*if (cl && !cl->level) return 0;
The line above used to be there to prevent attaching filters to
leaves. But at least tc_index filter uses this just to get class
{
struct htb_sched *q = qdisc_priv(sch);
struct htb_class *cl = (struct htb_class *)arg;
- HTB_DBG(0,2,"htb_unbind q=%p cl=%p fref=%d\n",q,cl,cl?cl->filter_cnt:q->filter_cnt);
+
if (cl)
cl->filter_cnt--;
else
projects / linux-2.6 / commitdiff