svn commit: r253083 - in head: sys/netinet usr.bin/netstat
Andrey V. Elsukov
ae at FreeBSD.org
Tue Jul 9 09:43:05 UTC 2013
Author: ae
Date: Tue Jul 9 09:43:03 2013
New Revision: 253083
URL: http://svnweb.freebsd.org/changeset/base/253083
Log:
Use new macros to implement ipstat and tcpstat using PCPU counters.
Change interface of kread_counters() similar ot kread() in the netstat(1).
Modified:
head/sys/netinet/ip_input.c
head/sys/netinet/ip_var.h
head/sys/netinet/tcp_input.c
head/sys/netinet/tcp_var.h
head/usr.bin/netstat/inet.c
head/usr.bin/netstat/main.c
head/usr.bin/netstat/netstat.h
Modified: head/sys/netinet/ip_input.c
==============================================================================
--- head/sys/netinet/ip_input.c Tue Jul 9 09:37:21 2013 (r253082)
+++ head/sys/netinet/ip_input.c Tue Jul 9 09:43:03 2013 (r253083)
@@ -208,73 +208,17 @@ SYSCTL_VNET_INT(_net_inet_ip, OID_AUTO,
static void ip_freef(struct ipqhead *, struct ipq *);
/*
- * IP statistics are stored in struct ipstat_p, which is
- * an "array" of counter(9)s. Although it isn't a real
- * array, we treat it as array to reduce code bloat.
+ * IP statistics are stored in the "array" of counter(9)s.
*/
-VNET_DEFINE(struct ipstat_p, ipstatp);
-
-static void
-vnet_ipstatp_init(const void *unused)
-{
- counter_u64_t *c;
- int i;
-
- for (i = 0, c = (counter_u64_t *)&V_ipstatp;
- i < sizeof(V_ipstatp) / sizeof(counter_u64_t);
- i++, c++) {
- *c = counter_u64_alloc(M_WAITOK);
- counter_u64_zero(*c);
- }
-}
-VNET_SYSINIT(vnet_ipstatp_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
- vnet_ipstatp_init, NULL);
+VNET_PCPUSTAT_DEFINE(struct ipstat, ipstat);
+VNET_PCPUSTAT_SYSINIT(ipstat);
+SYSCTL_VNET_PCPUSTAT(_net_inet_ip, IPCTL_STATS, stats, struct ipstat, ipstat,
+ "IP statistics (struct ipstat, netinet/ip_var.h)");
#ifdef VIMAGE
-static void
-vnet_ipstatp_uninit(const void *unused)
-{
- counter_u64_t *c;
- int i;
-
- for (i = 0, c = (counter_u64_t *)&V_ipstatp;
- i < sizeof(V_ipstatp) / sizeof(counter_u64_t);
- i++, c++)
- counter_u64_free(*c);
-}
-VNET_SYSUNINIT(vnet_ipstatp_uninit, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
- vnet_ipstatp_uninit, NULL);
+VNET_PCPUSTAT_SYSUNINIT(ipstat);
#endif /* VIMAGE */
-static int
-ipstat_sysctl(SYSCTL_HANDLER_ARGS)
-{
- struct ipstat ipstat;
- counter_u64_t *c;
- uint64_t *v;
- int i;
-
- for (i = 0, c = (counter_u64_t *)&V_ipstatp, v = (uint64_t *)&ipstat;
- i < sizeof(V_ipstatp) / sizeof(counter_u64_t);
- i++, c++, v++) {
- *v = counter_u64_fetch(*c);
- /*
- * Old interface allowed to rewrite 'struct ipstat', and
- * netstat(1) used it to zero the structure. To keep
- * compatibility with old netstat(1) we will zero out
- * statistics on every write attempt, however we no longer
- * support writing arbitrary fake values to the statistics.
- */
- if (req->newptr)
- counter_u64_zero(*c);
- }
-
- return (SYSCTL_OUT(req, &ipstat, sizeof(ipstat)));
-}
-SYSCTL_VNET_PROC(_net_inet_ip, IPCTL_STATS, stats, CTLTYPE_OPAQUE | CTLFLAG_RW,
- NULL, 0, ipstat_sysctl, "I",
- "IP statistics (struct ipstat, netinet/ip_var.h)");
-
/*
* Kernel module interface for updating ipstat. The argument is an index
* into ipstat treated as an array.
@@ -283,14 +227,14 @@ void
kmod_ipstat_inc(int statnum)
{
- counter_u64_add(*((counter_u64_t *)&V_ipstatp + statnum), 1);
+ counter_u64_add(VNET(ipstat)[statnum], 1);
}
void
kmod_ipstat_dec(int statnum)
{
- counter_u64_add(*((counter_u64_t *)&V_ipstatp + statnum), -1);
+ counter_u64_add(VNET(ipstat)[statnum], -1);
}
static int
Modified: head/sys/netinet/ip_var.h
==============================================================================
--- head/sys/netinet/ip_var.h Tue Jul 9 09:37:21 2013 (r253082)
+++ head/sys/netinet/ip_var.h Tue Jul 9 09:43:03 2013 (r253083)
@@ -133,46 +133,13 @@ struct ipstat {
#include <sys/counter.h>
#include <net/vnet.h>
-/* Should match 'struct ipstat' above. */
-struct ipstat_p {
- counter_u64_t ips_total;
- counter_u64_t ips_badsum;
- counter_u64_t ips_tooshort;
- counter_u64_t ips_toosmall;
- counter_u64_t ips_badhlen;
- counter_u64_t ips_badlen;
- counter_u64_t ips_fragments;
- counter_u64_t ips_fragdropped;
- counter_u64_t ips_fragtimeout;
- counter_u64_t ips_forward;
- counter_u64_t ips_fastforward;
- counter_u64_t ips_cantforward;
- counter_u64_t ips_redirectsent;
- counter_u64_t ips_noproto;
- counter_u64_t ips_delivered;
- counter_u64_t ips_localout;
- counter_u64_t ips_odropped;
- counter_u64_t ips_reassembled;
- counter_u64_t ips_fragmented;
- counter_u64_t ips_ofragments;
- counter_u64_t ips_cantfrag;
- counter_u64_t ips_badoptions;
- counter_u64_t ips_noroute;
- counter_u64_t ips_badvers;
- counter_u64_t ips_rawout;
- counter_u64_t ips_toolong;
- counter_u64_t ips_notmember;
- counter_u64_t ips_nogif;
- counter_u64_t ips_badaddr;
-};
-VNET_DECLARE(struct ipstat_p, ipstatp);
-#define V_ipstatp VNET(ipstatp)
-
+VNET_PCPUSTAT_DECLARE(struct ipstat, ipstat);
/*
* In-kernel consumers can use these accessor macros directly to update
* stats.
*/
-#define IPSTAT_ADD(name, val) counter_u64_add(V_ipstatp.name, (val))
+#define IPSTAT_ADD(name, val) \
+ VNET_PCPUSTAT_ADD(struct ipstat, ipstat, name, (val))
#define IPSTAT_SUB(name, val) IPSTAT_ADD(name, -(val))
#define IPSTAT_INC(name) IPSTAT_ADD(name, 1)
#define IPSTAT_DEC(name) IPSTAT_SUB(name, 1)
@@ -181,11 +148,11 @@ VNET_DECLARE(struct ipstat_p, ipstatp);
* Kernel module consumers must use this accessor macro.
*/
void kmod_ipstat_inc(int statnum);
-#define KMOD_IPSTAT_INC(name) \
- kmod_ipstat_inc(offsetof(struct ipstat_p, name) / sizeof(counter_u64_t))
+#define KMOD_IPSTAT_INC(name) \
+ kmod_ipstat_inc(offsetof(struct ipstat, name) / sizeof(uint64_t))
void kmod_ipstat_dec(int statnum);
-#define KMOD_IPSTAT_DEC(name) \
- kmod_ipstat_dec(offsetof(struct ipstat_p, name) / sizeof(counter_u64_t))
+#define KMOD_IPSTAT_DEC(name) \
+ kmod_ipstat_dec(offsetof(struct ipstat, name) / sizeof(uint64_t))
/* flags passed to ip_output as last parameter */
#define IP_FORWARDING 0x1 /* most of ip header exists */
Modified: head/sys/netinet/tcp_input.c
==============================================================================
--- head/sys/netinet/tcp_input.c Tue Jul 9 09:37:21 2013 (r253082)
+++ head/sys/netinet/tcp_input.c Tue Jul 9 09:43:03 2013 (r253083)
@@ -240,67 +240,16 @@ static void inline hhook_run_tcp_est_in(
struct tcphdr *th, struct tcpopt *to);
/*
- * TCP statistics are stored in struct tcpstat_p, which is
- * an "array" of counter(9)s. Although it isn't a real
- * array, we treat it as array to reduce code bloat.
+ * TCP statistics are stored in an "array" of counter(9)s.
*/
-VNET_DEFINE(struct tcpstat_p, tcpstatp);
-
-static void
-vnet_tcpstatp_init(const void *unused)
-{
- counter_u64_t *c;
- int i;
-
- for (i = 0, c = (counter_u64_t *)&V_tcpstatp;
- i < sizeof(V_tcpstatp) / sizeof(counter_u64_t);
- i++, c++) {
- *c = counter_u64_alloc(M_WAITOK);
- counter_u64_zero(*c);
- }
-}
-VNET_SYSINIT(vnet_tcpstatp_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
- vnet_tcpstatp_init, NULL);
+VNET_PCPUSTAT_DEFINE(struct tcpstat, tcpstat);
+VNET_PCPUSTAT_SYSINIT(tcpstat);
+SYSCTL_VNET_PCPUSTAT(_net_inet_tcp, TCPCTL_STATS, stats, struct tcpstat,
+ tcpstat, "TCP statistics (struct tcpstat, netinet/tcp_var.h)");
#ifdef VIMAGE
-static void
-vnet_tcpstatp_uninit(const void *unused)
-{
- counter_u64_t *c;
- int i;
-
- for (i = 0, c = (counter_u64_t *)&V_tcpstatp;
- i < sizeof(V_tcpstatp) / sizeof(counter_u64_t);
- i++, c++)
- counter_u64_free(*c);
-}
-VNET_SYSUNINIT(vnet_tcpstatp_uninit, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
- vnet_tcpstatp_uninit, NULL);
+VNET_PCPUSTAT_SYSUNINIT(tcpstat);
#endif /* VIMAGE */
-
-static int
-tcpstat_sysctl(SYSCTL_HANDLER_ARGS)
-{
- struct tcpstat tcpstat;
- counter_u64_t *c;
- uint64_t *v;
- int i;
-
- for (i = 0, c = (counter_u64_t *)&V_tcpstatp, v = (uint64_t *)&tcpstat;
- i < sizeof(V_tcpstatp) / sizeof(counter_u64_t);
- i++, c++, v++) {
- *v = counter_u64_fetch(*c);
- if (req->newptr)
- counter_u64_zero(*c);
- }
-
- return (SYSCTL_OUT(req, &tcpstat, sizeof(tcpstat)));
-}
-
-SYSCTL_VNET_PROC(_net_inet_tcp, TCPCTL_STATS, stats, CTLTYPE_OPAQUE |
- CTLFLAG_RW, NULL, 0, tcpstat_sysctl, "I",
- "TCP statistics (struct tcpstat, netinet/tcp_var.h)");
-
/*
* Kernel module interface for updating tcpstat. The argument is an index
* into tcpstat treated as an array.
@@ -309,7 +258,7 @@ void
kmod_tcpstat_inc(int statnum)
{
- counter_u64_add(*((counter_u64_t *)&V_tcpstatp + statnum), 1);
+ counter_u64_add(VNET(tcpstat)[statnum], 1);
}
/*
Modified: head/sys/netinet/tcp_var.h
==============================================================================
--- head/sys/netinet/tcp_var.h Tue Jul 9 09:37:21 2013 (r253082)
+++ head/sys/netinet/tcp_var.h Tue Jul 9 09:43:03 2013 (r253083)
@@ -514,119 +514,15 @@ struct tcpstat {
};
#ifdef _KERNEL
-
#include <sys/counter.h>
-/* Should match 'struct tcpstat' above. */
-struct tcpstat_p {
- counter_u64_t tcps_connattempt;
- counter_u64_t tcps_accepts;
- counter_u64_t tcps_connects;
- counter_u64_t tcps_drops;
- counter_u64_t tcps_conndrops;
- counter_u64_t tcps_minmssdrops;
- counter_u64_t tcps_closed;
- counter_u64_t tcps_segstimed;
- counter_u64_t tcps_rttupdated;
- counter_u64_t tcps_delack;
- counter_u64_t tcps_timeoutdrop;
- counter_u64_t tcps_rexmttimeo;
- counter_u64_t tcps_persisttimeo;
- counter_u64_t tcps_keeptimeo;
- counter_u64_t tcps_keepprobe;
- counter_u64_t tcps_keepdrops;
- counter_u64_t tcps_sndtotal;
- counter_u64_t tcps_sndpack;
- counter_u64_t tcps_sndbyte;
- counter_u64_t tcps_sndrexmitpack;
- counter_u64_t tcps_sndrexmitbyte;
- counter_u64_t tcps_sndrexmitbad;
- counter_u64_t tcps_sndacks;
- counter_u64_t tcps_sndprobe;
- counter_u64_t tcps_sndurg;
- counter_u64_t tcps_sndwinup;
- counter_u64_t tcps_sndctrl;
- counter_u64_t tcps_rcvtotal;
- counter_u64_t tcps_rcvpack;
- counter_u64_t tcps_rcvbyte;
- counter_u64_t tcps_rcvbadsum;
- counter_u64_t tcps_rcvbadoff;
- counter_u64_t tcps_rcvmemdrop;
- counter_u64_t tcps_rcvshort;
- counter_u64_t tcps_rcvduppack;
- counter_u64_t tcps_rcvdupbyte;
- counter_u64_t tcps_rcvpartduppack;
- counter_u64_t tcps_rcvpartdupbyte;
- counter_u64_t tcps_rcvoopack;
- counter_u64_t tcps_rcvoobyte;
- counter_u64_t tcps_rcvpackafterwin;
- counter_u64_t tcps_rcvbyteafterwin;
- counter_u64_t tcps_rcvafterclose;
- counter_u64_t tcps_rcvwinprobe;
- counter_u64_t tcps_rcvdupack;
- counter_u64_t tcps_rcvacktoomuch;
- counter_u64_t tcps_rcvackpack;
- counter_u64_t tcps_rcvackbyte;
- counter_u64_t tcps_rcvwinupd;
- counter_u64_t tcps_pawsdrop;
- counter_u64_t tcps_predack;
- counter_u64_t tcps_preddat;
- counter_u64_t tcps_pcbcachemiss;
- counter_u64_t tcps_cachedrtt;
- counter_u64_t tcps_cachedrttvar;
- counter_u64_t tcps_cachedssthresh;
- counter_u64_t tcps_usedrtt;
- counter_u64_t tcps_usedrttvar;
- counter_u64_t tcps_usedssthresh;
- counter_u64_t tcps_persistdrop;
- counter_u64_t tcps_badsyn;
- counter_u64_t tcps_mturesent;
- counter_u64_t tcps_listendrop;
- counter_u64_t tcps_badrst;
- counter_u64_t tcps_sc_added;
- counter_u64_t tcps_sc_retransmitted;
- counter_u64_t tcps_sc_dupsyn;
- counter_u64_t tcps_sc_dropped;
- counter_u64_t tcps_sc_completed;
- counter_u64_t tcps_sc_bucketoverflow;
- counter_u64_t tcps_sc_cacheoverflow;
- counter_u64_t tcps_sc_reset;
- counter_u64_t tcps_sc_stale;
- counter_u64_t tcps_sc_aborted;
- counter_u64_t tcps_sc_badack;
- counter_u64_t tcps_sc_unreach;
- counter_u64_t tcps_sc_zonefail;
- counter_u64_t tcps_sc_sendcookie;
- counter_u64_t tcps_sc_recvcookie;
- counter_u64_t tcps_hc_added;
- counter_u64_t tcps_hc_bucketoverflow;
- counter_u64_t tcps_finwait2_drops;
- counter_u64_t tcps_sack_recovery_episode;
- counter_u64_t tcps_sack_rexmits;
- counter_u64_t tcps_sack_rexmit_bytes;
- counter_u64_t tcps_sack_rcv_blocks;
- counter_u64_t tcps_sack_send_blocks;
- counter_u64_t tcps_sack_sboverflow;
- counter_u64_t tcps_ecn_ce;
- counter_u64_t tcps_ecn_ect0;
- counter_u64_t tcps_ecn_ect1;
- counter_u64_t tcps_ecn_shs;
- counter_u64_t tcps_ecn_rcwnd;
- counter_u64_t tcps_sig_rcvgoodsig;
- counter_u64_t tcps_sig_rcvbadsig;
- counter_u64_t tcps_sig_err_buildsig;
- counter_u64_t tcps_sig_err_sigopt;
- counter_u64_t tcps_sig_err_nosigopt;
-};
-
-VNET_DECLARE(struct tcpstat_p, tcpstatp); /* tcp statistics */
-#define V_tcpstatp VNET(tcpstatp)
-
+VNET_PCPUSTAT_DECLARE(struct tcpstat, tcpstat); /* tcp statistics */
/*
* In-kernel consumers can use these accessor macros directly to update
* stats.
*/
-#define TCPSTAT_ADD(name, val) counter_u64_add(V_tcpstatp.name, (val))
+#define TCPSTAT_ADD(name, val) \
+ VNET_PCPUSTAT_ADD(struct tcpstat, tcpstat, name, (val))
#define TCPSTAT_INC(name) TCPSTAT_ADD(name, 1)
/*
@@ -634,8 +530,7 @@ VNET_DECLARE(struct tcpstat_p, tcpstatp)
*/
void kmod_tcpstat_inc(int statnum);
#define KMOD_TCPSTAT_INC(name) \
- kmod_tcpstat_inc(offsetof(struct tcpstat_p, name) / \
- sizeof(counter_u64_t))
+ kmod_tcpstat_inc(offsetof(struct tcpstat, name) / sizeof(uint64_t))
/*
* TCP specific helper hook point identifiers.
Modified: head/usr.bin/netstat/inet.c
==============================================================================
--- head/usr.bin/netstat/inet.c Tue Jul 9 09:37:21 2013 (r253082)
+++ head/usr.bin/netstat/inet.c Tue Jul 9 09:43:03 2013 (r253083)
@@ -603,13 +603,8 @@ tcp_stats(u_long off, const char *name,
warn("sysctl: net.inet.tcp.stats");
return;
}
- } else {
- u_long tcpstat_p[sizeof(struct tcpstat)/sizeof(uint64_t)];
-
- kread(off, &tcpstat_p, sizeof(tcpstat_p));
- kread_counters(tcpstat_p, (uint64_t *)&tcpstat,
- sizeof(struct tcpstat)/sizeof(uint64_t));
- }
+ } else
+ kread_counters(off, &tcpstat, len);
printf ("%s:\n", name);
@@ -863,13 +858,8 @@ ip_stats(u_long off, const char *name, i
warn("sysctl: net.inet.ip.stats");
return;
}
- } else {
- u_long ipstat_p[sizeof(struct ipstat)/sizeof(uint64_t)];
-
- kread(off, &ipstat_p, sizeof(ipstat_p));
- kread_counters(ipstat_p, (uint64_t *)&ipstat,
- sizeof(struct ipstat)/sizeof(uint64_t));
- }
+ } else
+ kread_counters(off, &ipstat, len);
printf("%s:\n", name);
Modified: head/usr.bin/netstat/main.c
==============================================================================
--- head/usr.bin/netstat/main.c Tue Jul 9 09:37:21 2013 (r253082)
+++ head/usr.bin/netstat/main.c Tue Jul 9 09:43:03 2013 (r253083)
@@ -147,11 +147,11 @@ static struct nlist nl[] = {
#define N_IPCOMPSTAT 37
{ .n_name = "_ipcompstat" },
#define N_TCPSTAT 38
- { .n_name = "_tcpstatp" },
+ { .n_name = "_tcpstat" },
#define N_UDPSTAT 39
{ .n_name = "_udpstat" },
#define N_IPSTAT 40
- { .n_name = "_ipstatp" },
+ { .n_name = "_ipstat" },
#define N_ICMPSTAT 41
{ .n_name = "_icmpstat" },
#define N_IGMPSTAT 42
@@ -753,15 +753,21 @@ kread(u_long addr, void *buf, size_t siz
* Read an array of N counters in kernel memory into array of N uint64_t's.
*/
int
-kread_counters(u_long *addr, uint64_t *rval, size_t count)
+kread_counters(u_long addr, void *buf, size_t size)
{
+ uint64_t *c = buf;
if (kvmd_init() < 0)
return (-1);
- for (u_int i = 0; i < count; i++, addr++, rval++)
- *rval = kvm_counter_u64_fetch(kvmd, *addr);
+ if (kread(addr, buf, size) < 0)
+ return (-1);
+ while (size != 0) {
+ *c = kvm_counter_u64_fetch(kvmd, *c);
+ size -= sizeof(*c);
+ c++;
+ }
return (0);
}
Modified: head/usr.bin/netstat/netstat.h
==============================================================================
--- head/usr.bin/netstat/netstat.h Tue Jul 9 09:37:21 2013 (r253082)
+++ head/usr.bin/netstat/netstat.h Tue Jul 9 09:43:03 2013 (r253083)
@@ -60,7 +60,7 @@ extern int af; /* address family */
extern int live; /* true if we are examining a live system */
int kread(u_long addr, void *buf, size_t size);
-int kread_counters(u_long *addr, uint64_t *rval, size_t count);
+int kread_counters(u_long addr, void *buf, size_t size);
const char *plural(uintmax_t);
const char *plurales(uintmax_t);
const char *pluralies(uintmax_t);
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