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https://github.com/freebsd/freebsd-src
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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
This commit is contained in:
Gleb Smirnoff
parent
0ce4d7ec96
commit
b730de8bad
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@ -704,8 +704,6 @@ void icmp6_paramerror(struct mbuf *, int);
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void icmp6_error(struct mbuf *, int, int, int);
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void icmp6_error2(struct mbuf *, int, int, int, struct ifnet *);
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int icmp6_input(struct mbuf **, int *, int);
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void icmp6_fasttimo(void);
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void icmp6_slowtimo(void);
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void icmp6_prepare(struct mbuf *);
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void icmp6_redirect_input(struct mbuf *, int);
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void icmp6_redirect_output(struct mbuf *, struct nhop_object *);
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@ -2127,20 +2127,6 @@ icmp6_reflect(struct mbuf *m, size_t off)
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return;
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}
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void
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icmp6_fasttimo(void)
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{
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mld_fasttimo();
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}
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void
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icmp6_slowtimo(void)
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{
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mld_slowtimo();
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}
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static const char *
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icmp6_redirect_diag(struct in6_addr *src6, struct in6_addr *dst6,
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struct in6_addr *tgt6)
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@ -79,7 +79,6 @@ __FBSDID("$FreeBSD$");
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#include <sys/systm.h>
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#include <sys/priv.h>
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#include <sys/proc.h>
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#include <sys/protosw.h>
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#include <sys/time.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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@ -733,7 +732,7 @@ in6_joingroup_legacy(struct ifnet *ifp, const struct in6_addr *mcaddr,
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return (NULL);
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}
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delay = (delay * PR_FASTHZ) / hz;
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delay = (delay * MLD_FASTHZ) / hz;
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error = in6_joingroup(ifp, mcaddr, NULL, &imm->i6mm_maddr, delay);
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if (error) {
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@ -214,8 +214,6 @@ struct protosw inet6sw[] = {
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.pr_protocol = IPPROTO_ICMPV6,
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.pr_flags = PR_ATOMIC|PR_ADDR,
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.pr_ctloutput = rip6_ctloutput,
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.pr_fasttimo = icmp6_fasttimo,
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.pr_slowtimo = icmp6_slowtimo,
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.pr_usrreqs = &rip6_usrreqs
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},
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{
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@ -75,7 +75,6 @@ __FBSDID("$FreeBSD$");
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#include <sys/systm.h>
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#include <sys/mbuf.h>
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#include <sys/socket.h>
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#include <sys/protosw.h>
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#include <sys/sysctl.h>
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#include <sys/kernel.h>
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#include <sys/callout.h>
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@ -670,7 +669,7 @@ mld_v1_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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KASSERT(mli != NULL, ("%s: no mld_ifsoftc for ifp %p", __func__, ifp));
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mld_set_version(mli, MLD_VERSION_1);
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timer = (ntohs(mld->mld_maxdelay) * PR_FASTHZ) / MLD_TIMER_SCALE;
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timer = (ntohs(mld->mld_maxdelay) * MLD_FASTHZ) / MLD_TIMER_SCALE;
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if (timer == 0)
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timer = 1;
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@ -821,7 +820,7 @@ mld_v2_input_query(struct ifnet *ifp, const struct ip6_hdr *ip6,
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maxdelay = (MLD_MRC_MANT(maxdelay) | 0x1000) <<
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(MLD_MRC_EXP(maxdelay) + 3);
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}
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timer = (maxdelay * PR_FASTHZ) / MLD_TIMER_SCALE;
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timer = (maxdelay * MLD_FASTHZ) / MLD_TIMER_SCALE;
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if (timer == 0)
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timer = 1;
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@ -1294,14 +1293,17 @@ mld_input(struct mbuf **mp, int off, int icmp6len)
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* Fast timeout handler (global).
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* VIMAGE: Timeout handlers are expected to service all vimages.
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*/
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void
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mld_fasttimo(void)
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static struct callout mldfast_callout;
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static void
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mld_fasttimo(void *arg __unused)
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{
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struct epoch_tracker et;
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struct in6_multi_head inmh;
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VNET_ITERATOR_DECL(vnet_iter);
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SLIST_INIT(&inmh);
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NET_EPOCH_ENTER(et);
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VNET_LIST_RLOCK_NOSLEEP();
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VNET_FOREACH(vnet_iter) {
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CURVNET_SET(vnet_iter);
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@ -1309,7 +1311,10 @@ mld_fasttimo(void)
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CURVNET_RESTORE();
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}
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VNET_LIST_RUNLOCK_NOSLEEP();
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NET_EPOCH_EXIT(et);
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in6m_release_list_deferred(&inmh);
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callout_reset(&mldfast_callout, hz / MLD_FASTHZ, mld_fasttimo, NULL);
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}
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/*
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@ -1320,7 +1325,6 @@ mld_fasttimo(void)
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static void
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mld_fasttimo_vnet(struct in6_multi_head *inmh)
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{
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struct epoch_tracker et;
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struct mbufq scq; /* State-change packets */
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struct mbufq qrq; /* Query response packets */
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struct ifnet *ifp;
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@ -1380,12 +1384,11 @@ mld_fasttimo_vnet(struct in6_multi_head *inmh)
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if (mli->mli_version == MLD_VERSION_2) {
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uri_fasthz = MLD_RANDOM_DELAY(mli->mli_uri *
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PR_FASTHZ);
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MLD_FASTHZ);
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mbufq_init(&qrq, MLD_MAX_G_GS_PACKETS);
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mbufq_init(&scq, MLD_MAX_STATE_CHANGE_PACKETS);
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}
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NET_EPOCH_ENTER(et);
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IF_ADDR_WLOCK(ifp);
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CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
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inm = in6m_ifmultiaddr_get_inm(ifma);
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@ -1424,7 +1427,6 @@ mld_fasttimo_vnet(struct in6_multi_head *inmh)
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mld_dispatch_queue(&scq, 0);
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break;
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}
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NET_EPOCH_EXIT(et);
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}
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out_locked:
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@ -1616,7 +1618,7 @@ mld_set_version(struct mld_ifsoftc *mli, const int version)
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* Section 9.12.
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*/
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old_version_timer = (mli->mli_rv * mli->mli_qi) + mli->mli_qri;
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old_version_timer *= PR_SLOWHZ;
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old_version_timer *= MLD_SLOWHZ;
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mli->mli_v1_timer = old_version_timer;
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}
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@ -1707,8 +1709,9 @@ mld_v2_cancel_link_timers(struct mld_ifsoftc *mli)
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* Global slowtimo handler.
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* VIMAGE: Timeout handlers are expected to service all vimages.
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*/
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void
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mld_slowtimo(void)
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static struct callout mldslow_callout;
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static void
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mld_slowtimo(void *arg __unused)
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{
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VNET_ITERATOR_DECL(vnet_iter);
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@ -1719,6 +1722,8 @@ mld_slowtimo(void)
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CURVNET_RESTORE();
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}
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VNET_LIST_RUNLOCK_NOSLEEP();
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callout_reset(&mldslow_callout, hz / MLD_SLOWHZ, mld_slowtimo, NULL);
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}
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/*
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@ -1853,7 +1858,7 @@ mld_v1_transmit_report(struct in6_multi *in6m, const int type)
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*
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* If delay is non-zero, and the state change is an initial multicast
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* join, the state change report will be delayed by 'delay' ticks
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* in units of PR_FASTHZ if MLDv1 is active on the link; otherwise
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* in units of MLD_FASTHZ if MLDv1 is active on the link; otherwise
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* the initial MLDv2 state change report will be delayed by whichever
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* is sooner, a pending state-change timer or delay itself.
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*
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@ -1935,7 +1940,7 @@ mld_change_state(struct in6_multi *inm, const int delay)
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* initial state of the membership.
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*
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* If the delay argument is non-zero, then we must delay sending the
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* initial state change for delay ticks (in units of PR_FASTHZ).
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* initial state change for delay ticks (in units of MLD_FASTHZ).
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*/
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static int
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mld_initial_join(struct in6_multi *inm, struct mld_ifsoftc *mli,
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@ -2003,7 +2008,7 @@ mld_initial_join(struct in6_multi *inm, struct mld_ifsoftc *mli,
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* and delay sending the initial MLDv1 report
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* by not transitioning to the IDLE state.
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*/
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odelay = MLD_RANDOM_DELAY(MLD_V1_MAX_RI * PR_FASTHZ);
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odelay = MLD_RANDOM_DELAY(MLD_V1_MAX_RI * MLD_FASTHZ);
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if (delay) {
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inm->in6m_timer = max(delay, odelay);
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V_current_state_timers_running6 = 1;
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@ -3268,6 +3273,11 @@ mld_init(void *unused __unused)
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mld_po.ip6po_hbh = &mld_ra.hbh;
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mld_po.ip6po_prefer_tempaddr = IP6PO_TEMPADDR_NOTPREFER;
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mld_po.ip6po_flags = IP6PO_DONTFRAG;
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callout_init(&mldslow_callout, 1);
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callout_reset(&mldslow_callout, hz / MLD_SLOWHZ, mld_slowtimo, NULL);
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callout_init(&mldfast_callout, 1);
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callout_reset(&mldfast_callout, hz / MLD_FASTHZ, mld_fasttimo, NULL);
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}
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SYSINIT(mld_init, SI_SUB_PROTO_MC, SI_ORDER_MIDDLE, mld_init, NULL);
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@ -3276,6 +3286,8 @@ mld_uninit(void *unused __unused)
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{
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CTR1(KTR_MLD, "%s: tearing down", __func__);
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callout_drain(&mldslow_callout);
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callout_drain(&mldfast_callout);
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MLD_LOCK_DESTROY();
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}
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SYSUNINIT(mld_uninit, SI_SUB_PROTO_MC, SI_ORDER_MIDDLE, mld_uninit, NULL);
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@ -83,7 +83,7 @@
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#define MLD_MAX_STATE_CHANGE_PACKETS 8 /* # of packets per state change */
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#define MLD_MAX_RESPONSE_PACKETS 16 /* # of packets for general query */
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#define MLD_MAX_RESPONSE_BURST 4 /* # of responses to send at once */
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#define MLD_RESPONSE_BURST_INTERVAL (PR_FASTHZ / 2) /* 500ms */
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#define MLD_RESPONSE_BURST_INTERVAL (MLD_FASTHZ / 2) /* 500ms */
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/*
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* MLD-specific mbuf flags.
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@ -165,10 +165,11 @@ int mld_change_state(struct in6_multi *, const int);
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struct mld_ifsoftc *
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mld_domifattach(struct ifnet *);
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void mld_domifdetach(struct ifnet *);
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void mld_fasttimo(void);
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void mld_ifdetach(struct ifnet *, struct in6_multi_head *);
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int mld_input(struct mbuf **, int, int);
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void mld_slowtimo(void);
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#define MLD_SLOWHZ 2 /* 2 slow timeouts per second */
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#define MLD_FASTHZ 5 /* 5 fast timeouts per second */
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#ifdef SYSCTL_DECL
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SYSCTL_DECL(_net_inet6_mld);
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