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dummynet: Move packet counters into dn_cfg

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Move the packets counters into the dn_cfg struct. This reduces the
global name space use for dummynet and will make future work for things
like vnet support and re-use in pf easier.

Reviewed by:	donner
MFC after:	2 weeks
Sponsored by:	Rubicon Communications, LLC ("Netgate")
Differential Revision:	https://reviews.freebsd.org/D29245
This commit is contained in:
Kristof Provost 2021-03-09 16:27:31 +01:00
parent df7549775c
commit cd5671efc0
5 changed files with 16 additions and 22 deletions
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5
sys/netpfil/ipfw/dn_aqm.h
View File

@ -53,9 +53,6 @@ typedef int32_t aqm_stime_t;
/* Macro for variable bounding */
#define BOUND_VAR(x,l,h) ((x) > (h)? (h) : ((x) > (l)? (x) : (l)))
/* sysctl variable to count number of dropped packets */
extern unsigned long io_pkt_drop;
/*
* Structure for holding data and function pointers that together represent a
* AQM algorithm.
@ -137,7 +134,7 @@ update_stats(struct dn_queue *q, int len, int drop)
if (drop) {
qni->drops++;
sni->drops++;
io_pkt_drop++;
dn_cfg.io_pkt_drop++;
} else {
/*update queue stats */
qni->length += inc;

2
sys/netpfil/ipfw/dn_sched_fq_codel.h
View File

@ -104,7 +104,7 @@ fq_update_stats(struct fq_codel_flow *q, struct fq_codel_si *si, int len,
si->main_q.ni.drops ++;
q->stats.drops ++;
si->_si.ni.drops ++;
io_pkt_drop ++;
dn_cfg.io_pkt_drop ++;
}
if (!drop || (drop && len < 0)) {

2
sys/netpfil/ipfw/dn_sched_fq_pie.c
View File

@ -299,7 +299,7 @@ fq_update_stats(struct fq_pie_flow *q, struct fq_pie_si *si, int len,
si->main_q.ni.drops ++;
q->stats.drops ++;
si->_si.ni.drops ++;
io_pkt_drop ++;
dn_cfg.io_pkt_drop ++;
}
if (!drop || (drop && len < 0)) {

24
sys/netpfil/ipfw/ip_dn_io.c
View File

@ -88,14 +88,6 @@ static long tick_lost; /* Lost(coalesced) ticks number. */
/* Adjusted vs non-adjusted curr_time difference (ticks). */
static long tick_diff;
static unsigned long io_pkt;
static unsigned long io_pkt_fast;
#ifdef NEW_AQM
unsigned long io_pkt_drop;
#else
static unsigned long io_pkt_drop;
#endif
/*
* We use a heap to store entities for which we have pending timer events.
* The heap is checked at every tick and all entities with expired events
@ -228,13 +220,13 @@ SYSCTL_INT(_net_inet_ip_dummynet, OID_AUTO, fsk_count,
SYSCTL_INT(_net_inet_ip_dummynet, OID_AUTO, queue_count,
CTLFLAG_RD, DC(queue_count), 0, "Number of queues");
SYSCTL_ULONG(_net_inet_ip_dummynet, OID_AUTO, io_pkt,
CTLFLAG_RD, &io_pkt, 0,
CTLFLAG_RD, DC(io_pkt), 0,
"Number of packets passed to dummynet.");
SYSCTL_ULONG(_net_inet_ip_dummynet, OID_AUTO, io_pkt_fast,
CTLFLAG_RD, &io_pkt_fast, 0,
CTLFLAG_RD, DC(io_pkt_fast), 0,
"Number of packets bypassed dummynet scheduler.");
SYSCTL_ULONG(_net_inet_ip_dummynet, OID_AUTO, io_pkt_drop,
CTLFLAG_RD, &io_pkt_drop, 0,
CTLFLAG_RD, DC(io_pkt_drop), 0,
"Number of packets dropped by dummynet.");
#undef DC
SYSEND
@ -540,7 +532,7 @@ dn_enqueue(struct dn_queue *q, struct mbuf* m, int drop)
return (0);
drop:
io_pkt_drop++;
dn_cfg.io_pkt_drop++;
q->ni.drops++;
ni->drops++;
FREE_PKT(m);
@ -882,7 +874,7 @@ dummynet_io(struct mbuf **m0, struct ip_fw_args *fwa)
else if (fwa->flags & IPFW_ARGS_IP6)
dir |= PROTO_IPV6;
DN_BH_WLOCK();
io_pkt++;
dn_cfg.io_pkt++;
/* we could actually tag outside the lock, but who cares... */
if (tag_mbuf(m, dir, fwa))
goto dropit;
@ -918,7 +910,7 @@ dummynet_io(struct mbuf **m0, struct ip_fw_args *fwa)
m = *m0 = NULL;
/* dn_enqueue already increases io_pkt_drop */
io_pkt_drop--;
dn_cfg.io_pkt_drop--;
goto dropit;
}
@ -956,7 +948,7 @@ dummynet_io(struct mbuf **m0, struct ip_fw_args *fwa)
tag->m_tag_cookie = MTAG_IPFW_RULE;
tag->m_tag_id = 0;
io_pkt_fast++;
dn_cfg.io_pkt_fast++;
if (m->m_nextpkt != NULL) {
printf("dummynet: fast io: pkt chain detected!\n");
m->m_nextpkt = NULL;
@ -972,7 +964,7 @@ dummynet_io(struct mbuf **m0, struct ip_fw_args *fwa)
return 0;
dropit:
io_pkt_drop++;
dn_cfg.io_pkt_drop++;
DN_BH_WUNLOCK();
if (m)
FREE_PKT(m);

5
sys/netpfil/ipfw/ip_dn_private.h
View File

@ -131,6 +131,11 @@ struct dn_parms {
int fsk_count;
int queue_count;
/* packet counters */
unsigned long io_pkt;
unsigned long io_pkt_fast;
unsigned long io_pkt_drop;
/* ticks and other stuff */
uint64_t curr_time;
/* flowsets and schedulers are in hash tables, with 'hash_size'