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[NET_SCHED]: Cleanup L2T macros and handle oversized packets

Browse source 
Change L2T (length to time) macros, in all rate based schedulers, to
call a common function qdisc_l2t() that does the rate table lookup.
This function handles if the packet size lookup is larger than the
rate table, which often occurs with TSO enabled.

Signed-off-by: Jesper Dangaard Brouer <[email protected]>
Acked-by: Patrick McHardy <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Jesper Dangaard Brouer 2007-09-12 16:35:24 +02:00 • committed by David S. Miller
commit e9bef55d3d
5 changed files with 19 additions and 9 deletions
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4
net/sched/act_police.c
View file

@ -21,8 +21,8 @@
#include <net/act_api.h>
#include <net/netlink.h>
#define L2T(p,L) ((p)->tcfp_R_tab->data[(L)>>(p)->tcfp_R_tab->rate.cell_log])
#define L2T_P(p,L) ((p)->tcfp_P_tab->data[(L)>>(p)->tcfp_P_tab->rate.cell_log])
#define L2T(p,L) qdisc_l2t((p)->tcfp_R_tab, L)
#define L2T_P(p,L) qdisc_l2t((p)->tcfp_P_tab, L)
#define POL_TAB_MASK 15
static struct tcf_common *tcf_police_ht[POL_TAB_MASK + 1];

2
net/sched/sch_cbq.c
View file

@ -175,7 +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)

6
net/sched/sch_htb.c
View file

@ -132,10 +132,8 @@ struct htb_class {
static inline long L2T(struct htb_class *cl, struct qdisc_rate_table *rate,
int size)
{
int slot = size >> rate->rate.cell_log;
if (slot > 255)
return (rate->data[255]*(slot >> 8) + rate->data[slot & 0xFF]);
return rate->data[slot];
long result = qdisc_l2t(rate, size);
return result;
}
struct htb_sched {

4
net/sched/sch_tbf.c
View file

@ -115,8 +115,8 @@ struct tbf_sched_data
struct qdisc_watchdog watchdog; /* Watchdog timer */
};
#define L2T(q,L) ((q)->R_tab->data[(L)>>(q)->R_tab->rate.cell_log])
#define L2T_P(q,L) ((q)->P_tab->data[(L)>>(q)->P_tab->rate.cell_log])
#define L2T(q,L) qdisc_l2t((q)->R_tab,L)
#define L2T_P(q,L) qdisc_l2t((q)->P_tab,L)
static int tbf_enqueue(struct sk_buff *skb, struct Qdisc* sch)
{