git: b730de8badbc - main - mld6: use callout(9) directly instead of pr_slowtimo, pr_fasttimo
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Date: Wed, 17 Aug 2022 18:52:18 UTC
The branch main has been updated by glebius:
URL: https://cgit.FreeBSD.org/src/commit/?id=b730de8badbc24cc2be2a5316c1a63129f387c21
commit b730de8badbc24cc2be2a5316c1a63129f387c21
Author: Gleb Smirnoff <glebius@FreeBSD.org>
AuthorDate: 2022-08-17 18:50:31 +0000
Commit: Gleb Smirnoff <glebius@FreeBSD.org>
CommitDate: 2022-08-17 18:50:31 +0000
mld6: use callout(9) directly instead of pr_slowtimo, pr_fasttimo
While here remove recursive network epoch entry in mld_fasttimo_vnet(),
as this function is already in epoch.
Reviewed by: melifaro
Differential revision: https://reviews.freebsd.org/D36161
---
sys/netinet/icmp6.h | 2 --
sys/netinet6/icmp6.c | 14 --------------
sys/netinet6/in6.c | 3 +--
sys/netinet6/in6_proto.c | 2 --
sys/netinet6/mld6.c | 42 +++++++++++++++++++++++++++---------------
sys/netinet6/mld6_var.h | 7 ++++---
6 files changed, 32 insertions(+), 38 deletions(-)
diff --git a/sys/netinet/icmp6.h b/sys/netinet/icmp6.h
index d4a103d04f00..9628c0957c4a 100644
--- a/sys/netinet/icmp6.h
+++ b/sys/netinet/icmp6.h
@@ -704,8 +704,6 @@ void icmp6_paramerror(struct mbuf *, int);
void icmp6_error(struct mbuf *, int, int, int);
void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
int icmp6_input(struct mbuf **, int *, int);
-void icmp6_fasttimo(void);
-void icmp6_slowtimo(void);
void icmp6_prepare(struct mbuf *);
void icmp6_redirect_input(struct mbuf *, int);
void icmp6_redirect_output(struct mbuf *, struct nhop_object *);
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c
index 691943fe5d56..6b81c7a6b000 100644
--- a/sys/netinet6/icmp6.c
+++ b/sys/netinet6/icmp6.c
@@ -2127,20 +2127,6 @@ icmp6_reflect(struct mbuf *m, size_t off)
return;
}
-void
-icmp6_fasttimo(void)
-{
-
- mld_fasttimo();
-}
-
-void
-icmp6_slowtimo(void)
-{
-
- mld_slowtimo();
-}
-
static const char *
icmp6_redirect_diag(struct in6_addr *src6, struct in6_addr *dst6,
struct in6_addr *tgt6)
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index 3386e0463637..ccdf71cfc01c 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -79,7 +79,6 @@ __FBSDID("$FreeBSD$");
#include <sys/systm.h>
#include <sys/priv.h>
#include <sys/proc.h>
-#include <sys/protosw.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <sys/lock.h>
@@ -733,7 +732,7 @@ in6_joingroup_legacy(struct ifnet *ifp, const struct in6_addr *mcaddr,
return (NULL);
}
- delay = (delay * PR_FASTHZ) / hz;
+ delay = (delay * MLD_FASTHZ) / hz;
error = in6_joingroup(ifp, mcaddr, NULL, &imm->i6mm_maddr, delay);
if (error) {
diff --git a/sys/netinet6/in6_proto.c b/sys/netinet6/in6_proto.c
index 0e413dc5b048..f437234b71a3 100644
--- a/sys/netinet6/in6_proto.c
+++ b/sys/netinet6/in6_proto.c
@@ -214,8 +214,6 @@ struct protosw inet6sw[] = {
.pr_protocol = IPPROTO_ICMPV6,
.pr_flags = PR_ATOMIC|PR_ADDR,
.pr_ctloutput = rip6_ctloutput,
- .pr_fasttimo = icmp6_fasttimo,
- .pr_slowtimo = icmp6_slowtimo,
.pr_usrreqs = &rip6_usrreqs
},
{
diff --git a/sys/netinet6/mld6.c b/sys/netinet6/mld6.c
index 548ea55ef715..60dc3a59eb4f 100644
--- a/sys/netinet6/mld6.c
+++ b/sys/netinet6/mld6.c
@@ -75,7 +75,6 @@ __FBSDID("$FreeBSD$");
#include <sys/systm.h>
#include <sys/mbuf.h>
#include <sys/socket.h>
-#include <sys/protosw.h>
#include <sys/sysctl.h>
#include <sys/kernel.h>
#include <sys/callout.h>
@@ -670,7 +669,7 @@ mld_v1_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp));
mld_set_version(mli, MLD_VERSION_1);
- timer = (ntohs(mld->mld_maxdelay) * PR_FASTHZ) / MLD_TIMER_SCALE;
+ timer = (ntohs(mld->mld_maxdelay) * MLD_FASTHZ) / MLD_TIMER_SCALE;
if (timer == 0)
timer = 1;
@@ -821,7 +820,7 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
maxdelay = (MLD_MRC_MANT(maxdelay) | 0x1000) <<
(MLD_MRC_EXP(maxdelay) + 3);
}
- timer = (maxdelay * PR_FASTHZ) / MLD_TIMER_SCALE;
+ timer = (maxdelay * MLD_FASTHZ) / MLD_TIMER_SCALE;
if (timer == 0)
timer = 1;
@@ -1294,14 +1293,17 @@ mld_input(struct mbuf **mp, int off, int icmp6len)
* Fast timeout handler (global).
* VIMAGE: Timeout handlers are expected to service all vimages.
*/
-void
-mld_fasttimo(void)
+static struct callout mldfast_callout;
+static void
+mld_fasttimo(void *arg __unused)
{
+ struct epoch_tracker et;
struct in6_multi_head inmh;
VNET_ITERATOR_DECL(vnet_iter);
SLIST_INIT(&inmh);
+ NET_EPOCH_ENTER(et);
VNET_LIST_RLOCK_NOSLEEP();
VNET_FOREACH(vnet_iter) {
CURVNET_SET(vnet_iter);
@@ -1309,7 +1311,10 @@ mld_fasttimo(void)
CURVNET_RESTORE();
}
VNET_LIST_RUNLOCK_NOSLEEP();
+ NET_EPOCH_EXIT(et);
in6m_release_list_deferred(&inmh);
+
+ callout_reset(&mldfast_callout, hz / MLD_FASTHZ, mld_fasttimo, NULL);
}
/*
@@ -1320,7 +1325,6 @@ mld_fasttimo(void)
static void
mld_fasttimo_vnet(struct in6_multi_head *inmh)
{
- struct epoch_tracker et;
struct mbufq scq; /* State-change packets */
struct mbufq qrq; /* Query response packets */
struct ifnet *ifp;
@@ -1380,12 +1384,11 @@ mld_fasttimo_vnet(struct in6_multi_head *inmh)
if (mli->mli_version == MLD_VERSION_2) {
uri_fasthz = MLD_RANDOM_DELAY(mli->mli_uri *
- PR_FASTHZ);
+ MLD_FASTHZ);
mbufq_init(&qrq, MLD_MAX_G_GS_PACKETS);
mbufq_init(&scq, MLD_MAX_STATE_CHANGE_PACKETS);
}
- NET_EPOCH_ENTER(et);
IF_ADDR_WLOCK(ifp);
CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
inm = in6m_ifmultiaddr_get_inm(ifma);
@@ -1424,7 +1427,6 @@ mld_fasttimo_vnet(struct in6_multi_head *inmh)
mld_dispatch_queue(&scq, 0);
break;
}
- NET_EPOCH_EXIT(et);
}
out_locked:
@@ -1616,7 +1618,7 @@ mld_set_version(struct mld_ifsoftc *mli, const int version)
* Section 9.12.
*/
old_version_timer = (mli->mli_rv * mli->mli_qi) + mli->mli_qri;
- old_version_timer *= PR_SLOWHZ;
+ old_version_timer *= MLD_SLOWHZ;
mli->mli_v1_timer = old_version_timer;
}
@@ -1707,8 +1709,9 @@ mld_v2_cancel_link_timers(struct mld_ifsoftc *mli)
* Global slowtimo handler.
* VIMAGE: Timeout handlers are expected to service all vimages.
*/
-void
-mld_slowtimo(void)
+static struct callout mldslow_callout;
+static void
+mld_slowtimo(void *arg __unused)
{
VNET_ITERATOR_DECL(vnet_iter);
@@ -1719,6 +1722,8 @@ mld_slowtimo(void)
CURVNET_RESTORE();
}
VNET_LIST_RUNLOCK_NOSLEEP();
+
+ callout_reset(&mldslow_callout, hz / MLD_SLOWHZ, mld_slowtimo, NULL);
}
/*
@@ -1853,7 +1858,7 @@ mld_v1_transmit_report(struct in6_multi *in6m, const int type)
*
* If delay is non-zero, and the state change is an initial multicast
* join, the state change report will be delayed by 'delay' ticks
- * in units of PR_FASTHZ if MLDv1 is active on the link; otherwise
+ * in units of MLD_FASTHZ if MLDv1 is active on the link; otherwise
* the initial MLDv2 state change report will be delayed by whichever
* is sooner, a pending state-change timer or delay itself.
*
@@ -1935,7 +1940,7 @@ out_locked:
* initial state of the membership.
*
* If the delay argument is non-zero, then we must delay sending the
- * initial state change for delay ticks (in units of PR_FASTHZ).
+ * initial state change for delay ticks (in units of MLD_FASTHZ).
*/
static int
mld_initial_join(struct in6_multi *inm, struct mld_ifsoftc *mli,
@@ -2003,7 +2008,7 @@ mld_initial_join(struct in6_multi *inm, struct mld_ifsoftc *mli,
* and delay sending the initial MLDv1 report
* by not transitioning to the IDLE state.
*/
- odelay = MLD_RANDOM_DELAY(MLD_V1_MAX_RI * PR_FASTHZ);
+ odelay = MLD_RANDOM_DELAY(MLD_V1_MAX_RI * MLD_FASTHZ);
if (delay) {
inm->in6m_timer = max(delay, odelay);
V_current_state_timers_running6 = 1;
@@ -3268,6 +3273,11 @@ mld_init(void *unused __unused)
mld_po.ip6po_hbh = &mld_ra.hbh;
mld_po.ip6po_prefer_tempaddr = IP6PO_TEMPADDR_NOTPREFER;
mld_po.ip6po_flags = IP6PO_DONTFRAG;
+
+ callout_init(&mldslow_callout, 1);
+ callout_reset(&mldslow_callout, hz / MLD_SLOWHZ, mld_slowtimo, NULL);
+ callout_init(&mldfast_callout, 1);
+ callout_reset(&mldfast_callout, hz / MLD_FASTHZ, mld_fasttimo, NULL);
}
SYSINIT(mld_init, SI_SUB_PROTO_MC, SI_ORDER_MIDDLE, mld_init, NULL);
@@ -3276,6 +3286,8 @@ mld_uninit(void *unused __unused)
{
CTR1(KTR_MLD, "%s: tearing down", __func__);
+ callout_drain(&mldslow_callout);
+ callout_drain(&mldfast_callout);
MLD_LOCK_DESTROY();
}
SYSUNINIT(mld_uninit, SI_SUB_PROTO_MC, SI_ORDER_MIDDLE, mld_uninit, NULL);
diff --git a/sys/netinet6/mld6_var.h b/sys/netinet6/mld6_var.h
index 0aedde275f1b..29e859d653ec 100644
--- a/sys/netinet6/mld6_var.h
+++ b/sys/netinet6/mld6_var.h
@@ -83,7 +83,7 @@
#define MLD_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */
#define MLD_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */
#define MLD_MAX_RESPONSE_BURST 4 /* # of responses to send at once */
-#define MLD_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */
+#define MLD_RESPONSE_BURST_INTERVAL (MLD_FASTHZ / 2) /* 500ms */
/*
* MLD-specific mbuf flags.
@@ -165,10 +165,11 @@ int mld_change_state(struct in6_multi *, const int);
struct mld_ifsoftc *
mld_domifattach(struct ifnet *);
void mld_domifdetach(struct ifnet *);
-void mld_fasttimo(void);
void mld_ifdetach(struct ifnet *, struct in6_multi_head *);
int mld_input(struct mbuf **, int, int);
-void mld_slowtimo(void);
+
+#define MLD_SLOWHZ 2 /* 2 slow timeouts per second */
+#define MLD_FASTHZ 5 /* 5 fast timeouts per second */
#ifdef SYSCTL_DECL
SYSCTL_DECL(_net_inet6_mld);