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if_vxlan(4): Prefer SYSCTL_INT over TUNABLE_INT

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This driver does not need to retrieve those tunable during early boot.
Meanwhile SYSCTL_INT can provide rich info such as description.
Also `sysctl net.link.vxlan.[legacy_port|reuse_port]` can report the
current settings.

MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D48621

(cherry picked from commit 92632371b360010709fad60146f1aee0b8b99776)
This commit is contained in:
Zhenlei Huang 2025-01-27 23:54:43 +08:00 committed by Franco Fichtner
parent 32153f610d
commit 3ff2763a72
1 changed files with 4 additions and 2 deletions
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6
sys/net/if_vxlan.c
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@ -429,9 +429,11 @@ SYSCTL_NODE(_net_link, OID_AUTO, vxlan, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
"Virtual eXtensible Local Area Network");
static int vxlan_legacy_port = 0;
TUNABLE_INT("net.link.vxlan.legacy_port", &vxlan_legacy_port);
SYSCTL_INT(_net_link_vxlan, OID_AUTO, legacy_port, CTLFLAG_RDTUN,
&vxlan_legacy_port, 0, "Use legacy port");
static int vxlan_reuse_port = 0;
TUNABLE_INT("net.link.vxlan.reuse_port", &vxlan_reuse_port);
SYSCTL_INT(_net_link_vxlan, OID_AUTO, reuse_port, CTLFLAG_RDTUN,
&vxlan_reuse_port, 0, "Re-use port");
/*
* This macro controls the default upper limitation on nesting of vxlan