Date: Mon, 30 Mar 2026 16:15:38 +0000 From: Mark Johnston <markj@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 81dbacbb7d71 - main - net/route: Add an eventhandler for rt_numfibs changes Message-ID: <69caa1aa.3c02d.318c3993@gitrepo.freebsd.org>
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The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=81dbacbb7d71a53eef99ce73f7e589a165c3e1d6 commit 81dbacbb7d71a53eef99ce73f7e589a165c3e1d6 Author: Mark Johnston <markj@FreeBSD.org> AuthorDate: 2026-03-30 13:30:19 +0000 Commit: Mark Johnston <markj@FreeBSD.org> CommitDate: 2026-03-30 16:08:20 +0000 net/route: Add an eventhandler for rt_numfibs changes The multicast routing code will start implementing per-FIB routing tables. As a part of this, it needs to be notified when the number of FIBs changes, so that it can expand its tables. Add an eventhandler for this purpose. MFC after: 2 weeks Sponsored by: Stormshield Sponsored by: Klara, Inc. Differential Revision: https://reviews.freebsd.org/D55239 --- sys/net/route.h | 6 ++++++ sys/net/route/route_tables.c | 4 +++- 2 files changed, 9 insertions(+), 1 deletion(-) diff --git a/sys/net/route.h b/sys/net/route.h index 49bb7abd9726..34df3297d6d4 100644 --- a/sys/net/route.h +++ b/sys/net/route.h @@ -32,6 +32,9 @@ #ifndef _NET_ROUTE_H_ #define _NET_ROUTE_H_ +#ifdef _KERNEL +#include <sys/_eventhandler.h> +#endif #include <net/vnet.h> /* @@ -124,6 +127,9 @@ VNET_DECLARE(u_int, rt_add_addr_allfibs); /* Announce interfaces to all fibs */ #define V_fib_hash_outbound VNET(fib_hash_outbound) VNET_DECLARE(u_int, fib_hash_outbound); +typedef void (*rtnumfibs_change_t)(void *, uint32_t); +EVENTHANDLER_DECLARE(rtnumfibs_change, rtnumfibs_change_t); + /* Outbound flowid generation rules */ #ifdef RSS #define fib4_calc_packet_hash xps_proto_software_hash_v4 diff --git a/sys/net/route/route_tables.c b/sys/net/route/route_tables.c index 749ef063e125..571f1db9c40d 100644 --- a/sys/net/route/route_tables.c +++ b/sys/net/route/route_tables.c @@ -33,10 +33,10 @@ * Which is the new name for an in kernel routing (next hop) table. * ***********************************************************************/ -#include <sys/cdefs.h> #include "opt_route.h" #include <sys/param.h> +#include <sys/eventhandler.h> #include <sys/socket.h> #include <sys/systm.h> #include <sys/malloc.h> @@ -268,6 +268,8 @@ grow_rtables(uint32_t num_tables) old_rt_tables = V_rt_tables; V_rt_tables = new_rt_tables; + EVENTHANDLER_INVOKE(rtnumfibs_change, num_tables); + /* Wait till all cpus see new pointers */ atomic_thread_fence_rel(); NET_EPOCH_WAIT();home | help
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